Outline Design Drawing

6.
Outline Design Drawing

6. Outline Design Drawing
Drawing List
Substation facilities
DWG No. Title Page No.
SS-01 Single Line Diagram (Mabibo S/S) A6-1
SS-02 Overall layout Plan (Mabibo S/S) A6-2
SS-03 Layout Plan of Control Building A6-3
SS-04 System Configuration diagram A6-4
SS-05 Single Line Diagram (Kinyerezi GPP) A6-5
SS-06 Layout Plan (Kinyerezi GPP) A6-6
SS-07 Single Line Diagram (UBUNGO 220kV S/S) A6-7
SS-08 Layout Plan (Ubungo) A6-8
SS-09 System Configuration diagram (Ubungo S/S) A6-9
SS-10 Layout Plan of Control Building (Ubungo) A6-10
SS-11 Section Drawing for New Kinyerezi Line (Ubungo Substation) A6-11
SS-12 Communication Network around Mabibo Substation A6-12
A-03 Ground Floor Plan (Preliminary) A6-13
A-04 Elevation (Preliminary) A6-14
Transmission line facilities

TL-01 Tentative 220 kV Transmission Line Route Map A6-15
TL-02 Work Demarcation for Installation of 220 kV T-off tension tower (Draft) A6-24
TL-KU-1 220 kV Transmission Line 3 ccts Steel Tower Type 220-3A A6-32
TL-KU-2 220 kV Transmission Line 3 ccts Steel Tower Type 220-3B A6-33
TL-KU-3 220 kV Transmission Line 3 ccts Steel Tower Type 220-3C A6-34
TL-KU-4 220 kV Transmission Line 3 ccts Steel Tower Type 220-3D-1 A6-35
TL-KU-5 220 kV Transmission Line 3 ccts Steel Tower Type 220-3D-2 A6-36
TL-KU-6 220 kV Transmission Line 2 ccts Steel Tower Type 220-2A A6-37
TL-KU-7 220 kV Transmission Line 2 ccts Steel Tower Type 220-2C A6-38
TL-KU-8 220 kV Transmission Line 2 ccts Steel Tower Type 220-2D A6-39
TL-KU-9 132 kV Transmission Line 2 ccts Steel Tower Type 132-2D A6-40
TL-LP-01 Tentative 220 kV Transmission Line Line Profile A6-41
Existing 132 kV Tower (No. 19 and No. 20) between Ubungo and Ilala A6-43
TL-UI-01
substation
Substation Facilities
A6-1
A6-2
A6-3
A6-4
UBUNGOO/G MabiboO/G
2500A 2500A
2500A 2500A
2500A 2500A
2500A 2500A
2500A 2500A 2500A 2500A
SCALE
The Projectfor reinforcement of Supply from
Kinyerezi Power Station to Ubungo Substation NON
Title DWG.NO.
Single Line Diagram (Kinyerezi GPP) SS-05
DATE DESIGNED CHECKED APPROVED REVISION

January.2020 T.NAKAMURA K.SAKEMURA K.OHASHI
A6-5
Planned ReinforcementArea
SCALE
The Project for reinforcement of Supply from
Title DWG.NO.
Layout Plan (Kinyerezi GPP) SS-06

A6-6
A6-7
A6-8
A6-9
A6-10
8700
2 x ACSR 2 x ACSR
564 mm2 564 mm2
2 x AAC 600 mm2
4000
17400
4000
5500 9000 18300 9000 9500
51300
PLAN (NEW KINYEREZI LINE)

OPGW
2 x ACSR
564 mm2
Existing Gantry
Tower for Main Bus
SECTION (MAIN BUS)
Grounding Wire
Transfer Bus Main Bus
Bypass Bus
2 x AAC 600 mm2
x AAC
00 mm2
LA CT PI PI DS (with ES) CB DS PI PI
Gantry Tower Existing Gantry
CVT
for Bypass Bus Tower for
Gantry Tower for Transfer Bus
Transmission Line
SECTION (NEW KINYEREZI LINE) SECTION (TRANSFER BUS)
SCALE
Title DWG.NO.
Section Drawing for New Kinyerezi Line
SS-11
(Ubungo Substation)
A6-11
Ubungo Substation Ilala Substation (Existing)
(Existing)
OP (24 cores) ADSS ADSS OP (24 cores)
ODF-MB SB SB SB SB ODF-MB
(Former ODF-IL) (Former ODF-UB)
New Existing OP
220/132 kV Power Lines (1 pair/Ry) ODF-KN OP 87L
Optical fiber (OPGW/ADSS) (1 pair/Ry)
Optical fiber (necessary cores)
Necessary 87L
Devices/Facilities Jumper OP 87L
87L from KN to UB
OP
87L
87L (1 pair/Ry)
Substation Control
220 kV Panel
SB SB
OPGW (24 cores) by TANESCO OP (24 cores)
MUX
by TANESCO 132 kV
132 kV
SB SB SB ODF-MB MUX
SCADA
OPGW (24 cores)
Communication 87L 87L SCADA

OP ODF Cabinet Panel
(24 cores) 87L 87L
OPGW Communication
(24 cores) OP 132 kV Panel
by TANESCO
OP
(1 pair/Ry)
OPGW (24 cores) 220 kV Necessary Jumper

OP SB OP from UB to IL
(24 cores) by TANESCO
Connection
OP by TANESCO
SB
(24 cores)
OPGW (24 cores)
87L ODF-UB OP (24 cores)
(132 kV side) by TANESCO
SB
87L
SB
ODF-IL OP
87L (1 pair/Ry)
OP
ODF-UB OP (24 cores) (1 pair/Ry)
87L ODF-UB
(220 kV side)
MUX SCADA,
87L PABX, etc.
ODF-MB
87L ODF-KN
Communication
MUX Panel
Necessary
OP OP Jumper OP
220 kV (1 pair/Ry) ODF Cabinet
by TANESCO
Communication MabiboSubstation(New) UB to KN
from
Panel SCADA
Kinyerezi Power Plant Mabibo Substation (New)
(Existing)
Ubungo Substation
(Existing) Detailed Connection of
87L (B) ODF-MB Dedicated Optical
87L (A) ODF-KN Fiber Cores (1 pair) for
Legend 220 kV 87L Protection
ODF Optical fiber Distibution Frame (24 terminals)
MUX Multiplexer
SB Splice Box Mabibo Substation
(New)
OPGW Grounding Wire with Optical cable
ODF-UB
ADSS All-Dielectric Self-Supporting optical fiber cable 87L (A)
OP Optical fiber cable ODF-KN 87L (B)
87L Current Differential Relay
MB Mabibo Substation
UB Ubungo Substation 87L (A)
ODF-UB
KN Kinyerezi Power Plant 87L (B)
IL Ilala Substation SCALE
ODF-MB
87L (A) Kinyerezi Power Station to Ubungo Substation NON
87L (B)
Title DWG.NO.
Communication Network around
Kinyerezi Power Plant SS-12
(Existing) Mabibo Substation
March.2020 T.NAKAMURA K.SAKEMURA K.OHASHI 0
A6-12
A-02
䣚䢳䣚䢴䣚䢵䣚䢶䣚䢷䣚䢸䣚䢹
35000
3000 3000 3600 2400 12000 5500 5500
1750
Service Balcony
䣛䢷䣛䢷
3000
䣄䣣䣶䣪䣴䣱䣱䣯䣄䣣䣶䣪䣴䣱䣱䣯䣒䣣䣰䣴䣶䣻
䣏䣣䣶䣧䣴䣫䣣䣮䣖䣧䣮䣧䣥䣱䣯䣯䣷䣰䣫䣥䣣䣶䣫䣱䣰䣄䣣䣶䣶䣧䣴䣻
5000
䢳䢴䣕䣶䣱䣴䣣䣩䣧䣔䣱䣱䣯䣔䣱䣱䣯
2000
䣅䣱䣴䣴䣫䣦䣱䣴
䣛䢶䣛䢶
䣆䣫䣴䣧䣥䣶䣱䣴䣅䣪䣣䣴䣩䣧䣴
5000
5000
䣔䣱䣱䣯䣔䣱䣱䣯
20000
A-02 4
䣛䢵䣛䢵 3 A-02
䣆䣱䣥䣷䣯䣧䣰䣶䣵䣅䣱䣰䣶䣴䣱䣮
5000
䣔䣱䣱䣯䣔䣱䣱䣯
䣕䣹䣫䣶䣥䣪䣩䣧䣣䣴
䣔䣱䣱䣯
10000
䣛䢴䣛䢴
䣏䣧䣧䣶䣫䣰䣩
5000
䣔䣱䣱䣯
䣛䢳䣛䢳
1750
䣆䣐 Service Balcony
䣆䣐
9600 2400 12000 11000
䣚䢳䣚䢴䣚䢵䣚䢶䣚䢷䣚䢸䣚䢹
2
A-02
Project Location Title Approved by Checked by Designed by Drawn by Date Dwg No.
11/10/19 A-01
Project for Reinforcement of Supply from Ground Floor Plan Consultant Scale
Dar es Salaam
Kinyerezi Power Station to Ubungo Substation (Preliminary) 䣛䣃䣅䣊䣋䣛䣑䢢䣇䣐䣉䣋䣐䣇䣇䣔䣋䣐䣉䢢䣅䣑䢰䢮䢢䣎䣖䣆䢰䢢䣖䣑䣍䣛䣑䢮䢢䣌䣃䣒䣃䣐
1 : 200
(for A3 paper)
A6-13
䣚䢹䣚䢸䣚䢷䣚䢶䣚䢵䣚䢴䣚䢳䣛䢳䣛䢴䣛䢵䣛䢶䣛䢷
䣔䣎䣔䣎
䢷䢲䢲䢲䢷䢲䢲䢲
䢳䣈䣎䢳䣈䣎
䢳䢲䢲䢲䢳䢲䢲䢲
䣉䣎䣉䣎
䢲䢲
䣐䣱䣴䣶䣪䢢䣇䣮䣧䣸䣣䣶䣫䣱䣰䣇䣣䣵䣶䢢䣇䣮䣧䣸䣣䣶䣫䣱䣰
䢳䢳䢢䢼䢢䢴䢲䢲
䢵䢳䢢䢼䢢䢴䢲䢲
䣚䢳䣚䢴䣚䢵䣚䢶䣚䢷䣚䢸䣚䢹䣛䢷䣛䢶䣛䢵䣛䢴䣛䢳
䣔䣎䣔䣎
䢷䢲䢲䢲䢷䢲䢲䢲
䢳䣈䣎䢳䣈䣎
䢳䢲䢲䢲䢳䢲䢲䢲
䣉䣎䣉䣎
䢲䢲
䣕䣱䣷䣶䣪䢢䣇䣮䣧䣸䣣䣶䣫䣱䣰䣙䣧䣵䣶䢢䣇䣮䣧䣸䣣䣶䣫䣱䣰
䢴䢳䢢䢼䢢䢴䢲䢲
䢶䢳䢢䢼䢢䢴䢲䢲
Project Location Title Approved by Checked by Designed by Drawn by Date Dwg No.
11/10/19 A-02
Project for Reinforcement of Supply from Elevation Consultant Scale
Dar es Salaam
Kinyerezi Power Station to Ubungo Substation (Preliminary) 䣛䣃䣅䣊䣋䣛䣑䢢䣇䣐䣉䣋䣐䣇䣇䣔䣋䣐䣉䢢䣅䣑䢰䢮䢢䣎䣖䣆䢰䢢䣖䣑䣍䣛䣑䢮䢢䣌䣃䣒䣃䣐
1 : 200
(for A3 paper)
A6-14
Transmission line facilities
䢢䣯
䢶䢷䢶䢰䢳䢷
T2
䯩
䣎䢲䤑䢵
Tension tower (3B) 䢵
T1 220 kV, 3 ccts S
T-off point latitude:517503.00 m E
Dead end tower (3D-1) longitude:9247725.00 m S
䢢䣯
220 kV, 3 ccts
䢶䢷䢹䢰䢹䢸 T3
latitude:517321.95 m E Suspension tower (3A)
longitude:9247688.36 m S 220 kV, 3 ccts
䢷䯩
䣎䢲䤑䢴
䢴 latitude:517951.00 m E
"
S
䢢䣯 longitude:9247819.00 m S
䢳䢺䢶䢰䢹䢴
䢳
"
S
A6-15
T5
Suspension tower (3A)
220 kV, 3 ccts
latitude:518867.00 m E
longitude:9248013.00 m S
䢷
䢴䢸䢴䢢䣯
䢵䢳䣔䢲䢲䢰䤑䢻䯩
S
䢢䣯
䢶䢺䢴䢰䢳䢹
䯩
䣎䢲䤑䢸
䢶
"
S
䢢䣯
䢶䢷䢶䢰䢳䢷
T4
Suspension tower (3C)
220 kV, 3 ccts
䯩 latitude:518395.38 m E
䣎䢲䤑䢵
䢵
䢢䣯 S
䢶䢷䢹䢰䢹䢸
A6-16
T7
Tension tower (3C)
220 kV, 3 ccts
䢢䣯
䢵䢻䢵䢰䢷䢻
T6
䢹
䣎䢲䤑䢶䢳䯩
"
S
220 kV, 3 ccts
䢢䣯
䢶䢴䢷䢰䢴䢹
䯩
䣎䢲䤑䢺
䢸
S
䢢䣯
䢵䢳䢲䢰䢴䢸
䢻䯩
䢷䣔䢲䤑䢴
䢢䣯 S
䢶䢺䢴䢰䢳䢹
A6-17
T9
220 kV, 3 ccts
䢢䣯
䢶䢹䢸䢰䢸䢺
䢶䯩
䣎䢲䤑䢶
䢻
S
䢢䣯
䢵䢵䢳䢰䢹䢵
䢵䯩
䢺䣔䢲䤑䢷
S
䢢䣯
䢵䢻䢵䢰䢷䢻
T8
䢳䯩 Suspension tower (3A)
䣎䢲䤑䢶
䢹
䢢䣯
䢶䢴䢷䢰䢴䢹 "
S 220 kV, 3 ccts
A6-18
T11
220 kV, 3 ccts
T10 longitude:9248461.00 m S
Tension tower (3C) 䢵䢹䢳䢰䢲䢷䢢䣯
220 kV, 3 ccts 䯩
latitude:520763.04 m E 䢳䢳䣔䢲䤑䢶䢸
longitude:9248411.59 m S S
䣯
䢴䢹䢺䢰䢵䢹䢢
䢺䯩
䢳䢲䣔䢳䤑䢷
"
S
䢢䣯
䢶䢹䢸䢰䢸䢺
䯩
䣯䢻
䢵䢳䢰䢹䢵䢢 S 䣎䢲䤑䢶䢶
A6-19
䣯
䢰䢻䢴䢢
䢶䢷䢲
䢷䢹䯩
䣎䢳䢵䤑
T12
䢳䢵
Tension tower (3A)
220 kV, 3 ccts
"
S
longitude:9248522.00 m S 䢶䢹䢵䢰䢷䢳䢢䣯
T13
䯩
䢳䢴䣔䢲䤑䢶䢵 Tension tower (3B)
S 220 kV, 3 ccts
䢵䢹䢳䢰䢲䢷䢢䣯 longitude:9248594.00 m S
䯩
䢳䢳䣔䢲䤑䢶䢸
䣯
䢴䢹䢺䢰䢵䢹䢢 "
S
A6-20
T15
Connection 1 cct to Ubungo Substation
Tension tower (3D-2)
220 kV, 3 ccts
䢳䢷
"
S 䣔䢶䢶䤑䢴䯩
䢵䢴䢳
䢰䢸䢸䢢
䣯
䣯
䢰䢸䢺䢢
䢶䢸䢶
䢷䯩
䢳䢶䣎䢳䤑
"
S
T14
䣯 Tension tower (3B)
䢰䢻䢴䢢
䢶䢷䢲
220 kV, 3 ccts
䢷䢹䯩
䢳䢵䣎䢳䢵䤑
䢶䢹䢵䢰䢷䢳䢢䣯 "
S
A6-21
䢳䢷
"
S 䣔䢶䢶䤑䢴䯩
䣯
䢰䢸䢺䢢
䢶䢸䢶䢵䢴䢳 T17
䢰䢸䢸䢢䣯 Tension tower (2C)
220 kV, 2 ccts
䢳䢸
"
S
䣎䢳䢶䤑䢴䢵䢲䢰䢴䢷䢢䣯䢳䢹
䢳䢸䯩 "
S T18
T16 䣔䢳䢹䤑 Suspension tower (2A)
Tension tower (2C) 䢶䢶䯩
220 kV, 2 ccts
220 kV, 2 ccts
䢵䢲䢺 latitude:523525.60 m E
latitude:523014.00 m E 䢰䢸䢷䢢 longitude:9248695.89 m S
longitude:9248844.00 m S 䣯
䢳䢺
S
䣔䢲䢵䤑
䢳䢺䢰䢺
䢴䢵䢵䯩
䢢䣯
A6-22
T19
220 kV, 2 ccts
䢵䢳䢺
䢰䢸䢶
䢢䣯
䢳䢻
S
䣔䢲䤑
䢶䢶䯩
䢵䢴䢵 T20
䢰䢷䢶 Suspension tower (2A)
䢢䣯 220 kV, 2 ccts
䢴䢲
S
䣔䢲䤑 T21
䢵䢲䯩 Tension tower (2A)
220 kV, 2 ccts
䢵䢵䢴 longitude:9248288.00 m S
䢰䢹䢢䣯
T22
Tension tower (2D)
220 kV, 2 ccts
䢴䢳
S 䢳䢲䢳
䢰䢳䢶
䣎䢲䤑䢢䣯
䢵䢻䯩䢴䢴
"
S
A6-23
Current conditions
T21
T20
Green 132 kV TL 2 ccts

Blue 132 kV 1 cct
Orange 33 kV 3 ccts
T19
T18
A6-24
Step 1
Tanzanian side work (Black)

a. Demolition and removal of the existing 132 kV 1 cct line
b. Demolition and removal of the existing 33 kV 3 cct lines
T21
T20
T19
T18
Green Existing 132 kV TL 2 ccts

Blue Existing 132 kV 1 cct
Orange Existing 33 kV 3 ccts
A6-25
Step 2
a. Construction of the temporary gantry No. TG1 and TG2 for supporting a conductor from T20 and T18
b. Construction of the temporary 132 kV 1cct (or 2cct) towers temporary 1 and 2 and connection of string
T21
T20
TG1 T19
Temporary 1
TG2
Temporary 2
T18
A6-26
Step 3
a. Shut down an electricity between Ubungo and Ilala line
b. Connection of a conductor between T20 and TG1
c. Connection of a conductor between TG2 and T18
(Equipment and materials shall be procured by Tanzania side)
T21
T20
TG1 T19
Temporary 1
Temporary 2
TG2
T18
A6-27
Step 4
Japanese side work (Red)
a. Demolition and removal of the existing 132 kV tower T19 (including foundation)
b. Construction of 132 kV 2 ccts dead end tower (permanent) NT20 and NT19
c. Connection work of 132 kV temporary conductor (TACSR) between NT20 and NT19
T21
NT20
TG1
NT19
Temporary 1
Temporary 2
TG2
T18
A6-28
Step 5 Tanzanian side work (Black)
b. Connection work of 132 kV conductor between T20 and NT20
c. Connection work of 132 kV conductor between T18 and NT19
(Materials, such as conductor, etc, between T20 and NT20 and between
NT19 and T18 shall be procured by Japanese side except insulator and etc.
at T20 and T18)
d. Demolition and removal of a conductor between T20 and TG1
e. Demolition and removal of a conductor between T18 and TG2
T21
NT20
T20
TG1
NT19
Temporary 1
Temporary 2 TG2
T18
A6-29
Step 6

a. Demolition and removal of TG1, TG2, temporary tower 1, 2, conductor
and accessories
b. Construction of Mabibo substation
T21
NT20
NT19
T18
Green Existing 132 kV 2 ccts
Purple New 132 kV 2 ccts
Red New 132 kV 2ccts
A6-30
Step 7
Tanzanian side work
a. Shut down an electricity between Ubungo and Ilala substation
b. Removal of 132 kV temporary conductor (TACSR) between NT20 and NT19
c. Connection of 132 kV under ground cable between NT20 and new Mabibo substation
T21
d. Connection of 132 kV under ground cable between NT19 and new Mabibo substation
T20
NT20
NT19 T18

Light bule 220 kV 2 ccts
A6-31
REFERENCE ONLY
THE PROJECT FOR REINFORCEMENT OF SUPPLY FROM

KINYEREZI POWER STATION TO UBUNGO SUBSTATION
IN DAR ES SALAAM
IN THE UNITED REPUBLIC OF TANZANIA
220 kV Transmission Line

3 ccts Steel Tower Type 220-3A TL-KU-1
A6-32
REFERENCE ONLY

IN DAR ES SALAAM

3 ccts Steel Tower Type 220-3B TL-KU-2
A6-33
REFERENCE ONLY

IN DAR ES SALAAM

3 ccts Steel Tower Type 220-3C TL-KU-3
A6-34
REFERENCE ONLY

IN DAR ES SALAAM

3 ccts Steel Tower Type 220-3D-1 TL-KU-4
A6-35
REFERENCE ONLY

IN DAR ES SALAAM

3 ccts Steel Tower Type 220-3D-2 TL-KU-5
A6-36
REFERENCE ONLY

IN DAR ES SALAAM

2 ccts Steel Tower Type 220-2A TL-KU-6
A6-37
REFERENCE ONLY

IN DAR ES SALAAM

2 ccts Steel Tower Type 220-2C TL-KU-7
A6-38
REFERENCE ONLY

IN DAR ES SALAAM

2 ccts Steel Tower Type 220-2D TL-KU-8
A6-39
REFERENCE ONLY

IN DAR ES SALAAM

2 ccts Steel Tower Type 㻝㻟㻞-2D TL-KU-9
A6-40
䢴䢶䢲
䢴䢴䢲
䢴䢲䢲
䢳䢺䢲
䢳䢸䢲
䢳䢶䢲

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䢳䢴䢲

䢳䢲䢲

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7\SH /HJ+HLJKW P ' % $ & $ $ & $ $ &
REFERENCE ONLY
KINYEREZI POWER STATION TO UBUNGO SUBSTATION Tentative 220 kV Transmission Line
IN DAR ES SALAAM
TL-LP-01
IN THE UNITED REPUBLIC OF TANZANIA Line Profile (1/2)
A6-41
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REFERENCE ONLY

KINYEREZI POWER STATION TO UBUNGO SUBSTATION Tentative 220 kV Transmission Line
IN DAR ES SALAAM
Line Profile (2/2) TL-LP-01
A6-42
Existing 132 kV Tower (No. 19 and No. 20)
between Ubungo and Ilala substation TL-UI-01
A6-43
7. Power Flow analysis
7. Basic Data for Power System Analysis
Basic data for power flow analysis

１．Generator data
Rated
Rated
Location Unit Type MVA Base
(MW) (kV) (MVA) Xd" (pu)
KINYE1G GT 150 18 167 0.2
Kinyerezi KINYE1E GT 185 20 206 0.2
KINYE2G C/C 240 18 267 0.2
TGGEN GasEngine 45 11 50 0.2
Tegeta
IPTL DG 103 11 114 0.2
UGPA GasEngine 102 11 120 0.2
UGPB GT 105 11 117 0.2
SYMBION GasEngine 112 11 124 0.2
Ubungo SONGAS3A GT 20 11 22 0.2
SONGAS3B GT 20 11 22 0.2
SONGAS1 GT 42 11 47 0.2
SONGAS2 GT 120 11 133 0.2
A7-1
２．Transmission line data
Location Voltage Length Conductor Impedance(pu) Rating
From To (kV) (km) Type Code Size(mm )2
No. R X Y (MVA)
FZ-III Ubungo 132 9 ACSR Hawk 240 1 0.006204 0.020067 0.004422 121
FZ-III FZ-II 132 8.5 Rail 483 0.002898 0.017617 0.004493 182
Tegeta Ubungo 132 18.2 ACSR Wolf 150 1 0.019 0.045 0.00483 74.1
Tegeta Ubungo 132 18.2 ACSR Wolf 150 1 0.019 0.045 0.00483 74.1
Ubungo Mlandizi 132 60 TACSR 240 2 0.062976 0.231 0.025458 352
Ubungo Kurasini 132 13 ACSR 240 1 0.004432 0.026944 0.006872 182
Ubungo Makumbusho 132 7 ACSR 240 1 0.006942 0.02695 0.00297 224
Ubungo Mabibo 132 2 TACSR 240 1 0.002099 0.0077 0.000849 176
Ubungo Mabibo 132 2 TACSR 240 1 0.002099 0.0077 0.000849 176
Ubungo Mid1 220 7 ACSR Bluejay 2 0.000343 0.005228 0.015197 666
Ubungo Mid8 220 7 ACSR Bluejay 1 0.0007 0.005445 0.009716 333
Ubungo Luguruni 220 17.5 ACSR Bluejay 1 0.00175 0.013612 0.02429 333
Ubungo Mabibo 220 2 ACSR Bluejay 2 0.000098 0.001494 0.004342 666
Mid1 Kinyerezi 220 8 ACSR Bluejay 2 0.000392 0.005975 0.017368 666
Mid2 Kinyerezi 220 8 ACSR Bluejay 2 0.000392 0.005975 0.017368 666
Mid2 Mabibo 220 10 ACSR Bluejay 2 0.00049 0.007469 0.02171 666
Mid3 Chalinze 132 4 ACSR Wolf 150 1 0.004224 0.009054 0.001936 74
Mid3 Mlandizi 132 46 ACSR Wolf 150 1 0.048576 0.104124 0.022264 74
Chalinze Morogoro 132 82 ACSR Wolf 150 1 0.086 0.2 0.03772 74.1
Ilala Mid7 132 1.3 ACSR 240 0.001289 0.005005 0.000552 125
Ilala Mabibo 132 5.5 TACSR 240 1 0.005773 0.021175 0.002334 176
Ilala Mabibo 132 5.5 TACSR 240 1 0.005773 0.021175 0.002334 176
FZ-II Mid6 132 5.2 ACSR 240 1 0.001773 0.010778 0.002749 182
FZ-II Kinyerezi 132 2.8 TACSR 240 1 0.002939 0.01078 0.001188 176
Mid4 Mbagala 132 11 ACSR 240 1 0.00375 0.022799 0.005815 182
Mbagala Mid10 132 10.2 ACSR 240 1 0.003477 0.021141 0.005392 182
Kurasini Mid9 132 5 ACSR 240 1 0.001705 0.010363 0.002643 182
NCC Mid7 132 1.8 XLPE 0.000423 0.001116 0.024719 140
Mid5 Luguruni 220 10.5 ACSR Bluejay 1 0.00105 0.008167 0.014574 333
Kinyerezi Luguruni 220 13.5 ACSR Bluejay 1 0.00135 0.0105 0.018738 333
Kinyerezi Luguruni 220 13.5 ACSR Bluejay 1 0.00135 0.0105 0.018738 333
Somangila Mid9 132 15 ACSR 240 1 0.005114 0.031783 0.007756 182
Somangila Mid10 132 15 ACSR 240 1 0.005114 0.031783 0.007756 182
Luguruni Morogoro 220 157.5 ACSR Bluejay 1 0.01575 0.122504 0.21861 333
Luguruni Morogoro 220 157.5 ACSR Bluejay 1 0.01575 0.122504 0.21861 333
A7-2
３．Transformer data
Rating %Z
Location
Voltage(kV) Power Rating
From To Prim. Sec. (MVA) MVA Base
FZ-III 132kV FZ-III 33kV 132 33 117 12.33
FZ-III
FZ-III 132kV FZ-III 33kV 132 33 117 12.45
Tegeta 132kV Tegeta 33kV 132 33 65 12.10
Tegeta 132kV Tegeta 33kV 132 33 65 12.00
Tegeta
TGGEN Tegeta 132kV 11 132 50 10.00
IPTL Tegeta 132kV 11 132 120 10.00
Ubungo 220kV Ubungo 132kV 220 132 300 10.00
UPGA Ubungo 132kV 11 132 120 10.00
Ubungo SYMBION Ubungo 132kV 11 132 150 10.00
SONGAS1 Ubungo 132kV 11 132 50 10.00
SONGAS2 Ubungo 132kV 11 132 150 10.00
UGPB Ubungo 220kV 11 220 120 12.00
SONGAS3A Ubungo 33kV 11 33 25 10.00
SONGAS3B Ubungo 33kV 11 33 25 10.00
Chalinze Chalinze 132kV Chalinze 33kV 132 33 55 12.21
Ilala 132kV Ilala 33kV 132 33 60 12.60
Ilala 132kV Ilala 33kV 132 33 60 12.60
Ilala
Ilala 132kV Ilala 33kV 132 33 60 12.40
Ilala 132kV Ilala 33kV 132 33 60 12.35
Mlandizi 132kV Mlandizi 33kV 132 33 20 10.00
Mlandizi
FZ-II 132kV FZ-II 33kV 132 33 50 14.20
FZ-II
FZ-II 132kV FZ-II 33kV 132 33 50 14.20
Mbagala 132kV Mbagala 33kV 132 33 65 14.20
Mbagala
Mbagala 132kV Mbagala 33kV 132 33 65 14.20
kurasini 132kV Kurasini 33kV 132 33 50 14.20
Kurasini
kurasini 132kV Kurasini 33kV 132 33 50 14.20
NCC 132kV NCC 33kV 132 33 50 9.41
NCC
NCC 132kV NCC 33kV 132 33 50 9.41
Kinyerezi 220kV Kinyerezi132kV 220 132 120 10.00
Kinyerezi 220kV Kinyerezi132kV 220 132 120 10.00
Kinyerezi KINYE1G Kinyerezi 220kV 18 220 200 12.00
KINYE1E Kinyerezi 220kV 20 220 250 12.00
KINYE2G Kinyerezi 220kV 18 220 300 12.00
Somangila 132kV Somangira 33kV 132 33 50 10.00
Somangila
Somangila 132kV Somangira 33kV 132 33 50 10.00
A7-3
Rating %Z
Location
Voltage(kV) Power Rating
From To Prim. Sec. (MVA) MVA Base
Luguruni 220kV Luguruni 33kV 220 33 90 20.00
Luguruni
Luguruni 220kV Luguruni 33kV 220 33 90 20.00
Makumbusho 132kV Makumbusho 33kV 132 33 55 11.60
Makumbusho
Makumbusho 132kV Makumbusho 33kV 132 33 55 11.60
Mabibo 220kV Mabibo 132kV 220 132 200 10.00
Mabibo
Mabibo 220kV Mabibo 132kV 220 132 200 10.00
Morogoro 220kV Morogoro 132kV 220 132 90 10.00
Morogoro Morogoro 220kV Morogoro 132kV 220 132 150 10.00
Morogoro 220kV Morogoro 132kV 220 132 150 10.00
A7-4
４．Capacitor data
Voltage Rating/Bank Total rating
Substation Bank No.
(kV) (Mvar) (Mvar)
Ubungo 33 1 18.3 18.3
Ilala 33 2 18.3 36.6
Makumbusho 33 1 9.3 9.3
A7-5
8. Switchover Procedures for Substation and
Transmission Line (Draft)
A8. Switchover Procedures for Substation and Transmission Lines (Draft)
8.Switchover Procedures for Substation and Transmission LineV (Draft)

A8-01 Work Demarcation for Installation of 220 kV T-off tension tower (Draft) A8-1
Work Demarcation for Installation of 220 kV dead end tower nearby A8-7
A8-02
Ubungo substation (Draft)
Tentative New Mabibo Substation Work Procedure (132kV Transmission A8-8
A8-03
Line)(F-GIS)
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for Installation of 220 kV T-off tension tower (Draft)
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Work Demarcation
for Installation of 220 kV dead end tower
nearby Ubungo substation (Draft)
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A8-7
Current conditions
T21
T20
Green 132 kV TL 2 ccts

Blue 132 kV 1 cct
Orange 33 kV 3 ccts
T19
T18
A8-8
Step 1

a. Demolition and removal of the existing 132 kV 1 cct line
b. Demolition and removal of the existing 33 kV 3 cct lines
T21
T20
T19
T18
Green Existing 132 kV TL 2 ccts

Blue Existing 132 kV 1 cct
Orange Existing 33 kV 3 ccts
A8-9
Step 2
a. Construction of the temporary gantry No. TG1 and TG2 for supporting a conductor from T20 and T18
b. Construction of the temporary 132 kV 1cct (or 2cct) towers temporary 1 and 2 and connection of string
T21
T20
TG1 T19
Temporary 1
TG2
Temporary 2
T18
A8-10
Step 3
b. Connection of a conductor between T20 and TG1
c. Connection of a conductor between TG2 and T18
(Equipment and materials shall be procured by Tanzania side)
T21
T20
TG1 T19
Temporary 1
Temporary 2
TG2
T18
A8-11
Step 4
a. Demolition and removal of the existing 132 kV tower T19 (including foundation)
b. Construction of 132 kV 2 ccts dead end tower (permanent) NT20 and NT19
c. Connection work of 132 kV temporary conductor (TACSR) between NT20 and NT19
T21
NT20
TG1
NT19
Temporary 1
Temporary 2
TG2
T18
A8-12
Step 5 Tanzanian side work (Black)
b. Connection work of 132 kV conductor between T20 and NT20
c. Connection work of 132 kV conductor between T18 and NT19
(Materials, such as conductor, etc, between T20 and NT20 and between
NT19 and T18 shall be procured by Japanese side except insulator and etc.
at T20 and T18)
d. Demolition and removal of a conductor between T20 and TG1
e. Demolition and removal of a conductor between T18 and TG2
T21
NT20
T20
TG1
NT19
Temporary 1
Temporary 2 TG2
T18
A8-13
Step 6

a. Demolition and removal of TG1, TG2, temporary tower 1, 2, conductor
and accessories
b. Construction of Mabibo substation
T21
NT20
NT19
T18
A8-14
Step 7
Tanzanian side work
a. Shut down an electricity between Ubungo and Ilala substation
b. Removal of 132 kV temporary conductor (TACSR) between NT20 and NT19
c. Connection of 132 kV under ground cable between NT20 and new Mabibo substation
T21
d. Connection of 132 kV under ground cable between NT19 and new Mabibo substation
T20
NT20
NT19 T18

Light bule 220 kV 2 ccts
A8-15
9. Result of Screening by the NEMC
9. Result of Screening by NEMC
NEMC Screening Decision
A9-1
NATIONAL ENVIRONMENT MANAGEMENT COUNCTL( NEMrJ
BARAZA L I rA! FA iu\ / III AMU A' A VSIMAMIZI H A MAZtSiHH ' >
'
+ 255 22 2774889,
35 Regent Street,
Telephone:
+ 255 22 2774852
P. O. Box 63154
Direct line:
I 1404 Dar cs Salaam
Mobile: 0713 608930
+ 255 22 2774901
TANZANIA
Fax:
Email: dg@ nernc.or.tz
Website: www.neinc.or.tz
In reply please quote : CB . 145/330 /165 /05 Date: 27 /04/2020
Managing Director,
Tanzania Electric Supply Company Limited (TANESCO),
P.O. Box 9024.
Dar es Salaam.
RE: SCREENING DECISION FOR THE PROPOSED CONSTRUCTION OF 9 KM OF

220 Kv TRANSMISSION LINE FROM KINYEREZI T-OFF POINT TO THE NEW
MABIBO SUBSTATION, DAR ES SALAAM
lh
We acknowledge receipt of your consultant’s letter dated 19 March , 2020 attached with the
project brief and Environmental Impact Assessment ( EIA) Application forms for the above
project. The project has been registered and allotted Application Reference Number ( ARN )
10855 We advise you to refer to this ARN as well as our File Reference number
(CB.145/330/ 165 ) whenever you communicate with the Council concerning this project.
According to the first schedule of the Environmental Management Act (EMA) of 2004 and its
subsequent Environmental Management ( Environmental Impact Assessment and Audit
)
( Amendment ) Regulations, 2018, this project falls under Type A projects, which
Environmental Impact Assessment ( EIA ) study is mandatory. As a first step towards this
process, you will be required to carry out a Scoping exercise and submit a Scoping report
(together with investment cost ) and draft Terms of Reference ( ToR ) to the Council for review
and approval before the start of the EIA study.
and its
According to the first schedule of the Environmental Management Act (EMA of 2004
)
Environmen tal Impact Assessment and Audit
subsequent Environmental Management (
Regulations , 2018, this project falls under Type A projects, which Environmen tal
Amendment )
Impact Assessment ( EIA ) study is a mandatory.
Environmental Management
Please take note that the Scoping report should conform to the
Regulations 8( 1 ) and 10 ( 1 )
( EIA and Audit ) ( Amendment ) Regulations 2018, particularly
of the scoping exercise
regarding the contents of the scoping report and the essence
General
All correspondence should be addressed to the Director
A9-2
to observe directives given under Regulation U K 2 ) ot
- lively . Also, be reminded
the
r
l nicrt -led Regulations
\
. '
.
/ '
or clarification on this matter, please

do not hesitate to contact us.
further information )Oam to 4:00pm .
774 777, Monday - Friday around
For X : (
767
through Tel. No. +255
Yours Sincerely ,
V ?
Glory J. Kombe
For: Director General
GROUP,
Cc: EAST AFRICA RESOURCE
P.O. Box 35631 ,
Dar cs Salaam.
to the Director General

AU correspondence should be addressed
A9-3
10. EIA report (TANESCO→NEMC)
10. EIA report (from TANESCO to NEMC)
TANZANIA ELECTRIC SUPPLY COMPANY LIMITED
ENVIRONMENTAL IMPACT ASSESSMENT REPROT FOR THE PROPOSED

CONSTRUCTION OF 9KM OF 220kV TRANSMISSION LINE FROM KINYEREZI T – OFF
POINT TO THE NEW MABIBO SUBSTATION, DAR ES SALAAM
SUBMITTED TO: NATIONAL ENVIRONMET MANAGEMENT COUNCIL (NEMC)

PLOT No. 30, MIGOMBANI STREET
P. O. BOX 63154
DARE ES SALAAM, TANZANIA
Tel: +255 22 2134 603 | +255 22 2127817
FAX: +255 22 2111579
Email address: dg@nemc.co.tz and secretary@nemc.or.tz
DEVELOPER: TANZANIA ELECTRIC SUPPLY COMPANY LIMITED

P. O. BOX 9024
DAR ES SALAAM, TANZANIA
Tel: +255 22 2451131-9
Fax: +255 22 2451206
Email address: info@tanesco.co.tz
CONSULTANT: EAST AFRICA RESOURCE GROUP

MIKOCHENI LIGHT INDUSTRIAL AREA
P.O BOX 35631
DAR ES SALAM
Tel: +255 769890263
Email: info@earg.co.tz
SUBMISSION DATE: NOVEMBER 25TH 2021
220 kV Power Transmission line from Kinyerezi T – Off Point to the New Mabibo Substation - TANESCO
A10-1
DECLARATION
The following experts conducted and prepared this EIA report
ii
A10-2
ACKNOWLEDGEMENT
Tanzania Electric Supply Company Limited (TANESCO) wishes to thank with profound
gratitude all the people that contributed to the preparation of this EIA report. In particular,
TANESCO would like to thank the local communities residing in Ubungo Municipal Council as
well as Ubungo Municipal Council Officials, where the largest part of the assessment and
consultations took place. Without the support of these individuals and their institutions, much of
the information that is presented in this report would not have been gathered.
The Management also wishes to thank the National Institute of Transport (NIT), Tanzania Port
Authority (TPA) and other institutions for their views and contributions to this report. Their
views and suggestions form part of this report.
The management of TANESCO is grateful to the Company staff, particularly, Mr. Ombeni
Mosha for the valuable contributions to the report through field visit, reviews, provision of all
necessary information including trends of power supply and demand in Dar es Salaam and the
national in general. Their contribution really made this EIA processes a true iterative and
participatory one. Some of the issues of concern were raised and discussed during these
consultations, which have resulted in the improvement of the project concept in general.
iii
A10-3
EXECUTIVE SUMMARY
Project Background and Rationale
The Government of Tanzania in collaboration with the Japan International Cooperation Agency
(JICA) through Tanzania Electric Supply Company Limited (TANESCO) are in the plan to
construct a new 220kV transmission line from Kinyerezi T-off Point to the new 220/132kV
substation near Mabibo area. This unique project will involve construction of a new substation
and triple circuit towers from Kinyerezi t-off point to Ubungo substation (7km) and double
circuit towers from Ubungo substation to Mabibo substation (2km). The proposed transmission
line is estimated to cover a distance of 9km. The project will utilize existing wayleave of
Morogoro two (MG2) and existing Ubungo Ilala wayleave on the second portion of the line, the
new substation will be constructed on the existing wayleave corridor near Mabibo market and
National Institute of Transport (NIT). Therefore no new land will be acquired for construction of
the transmission line and the substation; rather the existing transmission line will be demolished
and replaced with the new one. However, the MG2 wayleave was acquired long time ago since
1960s before EMA came into force; the project has no EIA certificate which is the same to the
Ubungo – Ilala wayleave.
The project is expected to utilize the wayleave of 60m that is 30m from both sides of the
centerline. The preliminary survey reveals that, there are several ongoing human activities at the
project site. It was noted that the area near Ubungo substation has few residential houses and few
mobile shops which will be affected during project construction. Although these activities are
done illegally since the wayleave is the property of TANESCO but it was found important to
seek the best way to deal with them. These includes graveyards near Ubungo Maziwa and in
Kimara Mavurunza and small vegetable gardens near Urafiki textile industry and few pedestrian
ways.
According to the Environmental Impact Assessment and Audit Regulations of 2005, all energy
development projects require a mandatory EIA. It is on this basis that the National Environment
Management Council (NEMC) directed TANESCO to carry out a full EIA study after screening
the detailed project brief.
iv
A10-4
Aside from fulfilling the requirements of the Environmental Impact Assessment and Audit
Regulations (2005), this EIA is also aimed at meeting requirements set by the Japan International
Cooperation Agency (JICA), in particular the JICA Guidelines for environmental and social
considerations (JICA Guidelines). Based on these regulations and requirements, the Project will
ensure that Implementation of this project may have negative and positive impacts on social,
economic and environment within the project area and beyond, hence this S intends to address
those impacts.
This executive summary report presents an overview of assessment of the potential

environmental and social impacts associated with the proposed New Mabibo substation and
transmission line from Kinyerezi T – Off Point to New Mabibo Substation in Tanzania. This
report has been prepared for TANESCO and presents the objectives, methodology and outcomes
of the EIA study.
Description of the Project Environment
The proposed 220 KV transmission line project will be located in Dar esSalaam particularly in
Ubungo municipality. The 9 km transmission line traverses four wards namely of Kimara,
Makuburi, Ubungo and Mabibo. The project intends to utilize existing MG2 way leave from
Kinyerezi t-off at Mavurunza mtaa in Kimara ward to the existing Ubungo substation about 7km
while the remaining 2 km will utilize the 132kV Ubungo - Ilala wayleave to Mabibo near Nation
Institute of Transportation.
The project being in urban area, large part of the project area is characterized by secondary
vegetation modified from prevous disturbance caused by construction of MG2 transmission line,
TPDC Gas pipeline and DAWASA water infrastructure.Similarly, the whole stretch from
Mabibo to Kinyerezi T-off point is surrounded by settlement located outside the wayleave with
some encroaching the wayleave particularly at Mavurunza mtaa, Kimara baruti mtaa and
Kilungule A and B mtaa in Kimara ward. Also way leave encroachment can be seen at Mabibo
where NIT boundary wall is more than 5 m within the way leave, Port authority building has its
wall encroaching the way leave and NRS godown has some of ts facility within the wayleave. In
v
A10-5
addition to those parmanent encroachment, there are temporary business near Ubungo substation
on either side of the Ubungo bridge, garages at Ubungo maziwa, vegatable farming near Urafiki
textile industry and grave yards at Ubungo maziwa, mavurunza near settlement.
The terrain of the project area is relatively undulating from Kinyerezi t-off point to ubungo
substation; and from Ubungo substation to Mabibo substation the terrain is relatively flat. Access
within the way leave corridor is poor, the previous aexisting access has been eroded sevrely and
damaged by surface run-off and pratically not accessible. However the project site can be
accessed via sevaral feeder roads emerging from Dar-Moro main road crossing the way leave at
different points.
Stakeholders and their Involvement in the EIA Process
Stakeholder participation was done in accordance to Section 89 of the Environmental

Management Act (EMA) No. 20 of 2004 as outlined in Part V of section 17 of the EIA and Audit
Regulations (URT, 2005). Subsection (1) stated that, during the EIA process, the developer or
proponent shall in consultation with the Council, seek views of any person who is or is likely to
be affected by the project/activity; while subsection (2) provides detailed processes and
procedures for public/stakeholders participation in the EIA process.
Various stakeholders‟ were consulted in undertaking this EIA, these includes Tanzania Electric
Supply Company Limited officials, Ubungo Municipal Council, National Institute of Transport,
Dar Es Salaam Water Supply and Sanitation Authority (DAWASA), Tanzania Petroleum
Development Corporation (TPDC), Wards and Mtaa officials as well as local communities.
Similarly the EIA team conducted focused group discussions in the affected wards and streets
using checklists. In addition household interviews were conducted using structured
questionnaires. This technique was used in order to get quantitative information, which could
give the general picture of the affected communities or adjacent communities.
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Results of Public Consultations
In general, stakeholders had different opinions with regard to the implementation of the proposed
220kV transmission line project. Some of the issues and concerns raised revolve around social
and environmental aspects. The issues and concerns raised during the consultations include;
 Valuation and compensation issues
The issue of fair and timely compensation was also raised during the consultation. Stakeholders
complained that it is taking long time for the compensation to be paid to the affected people after
the completion of the valuation process. Stakeholders at Kibo mtaa reported that the valuation of
properties in the area was done since 2013 but no compensation has been paid so far. They
complained that they have been living in a difficult environment since the valuation has taken
place because they are not allowed to do any improvement in their houses as any modification
after the valuation will not be considered for compensation. Stakeholders raised concern that in
most cases local communities are not well informed of their rights, leave alone the compensation
procedure as a result people are denied of their rights.
 Accident, risks and Hazards

Accidents and risks may occur to workers during construction phase especially when handling of
machinery and equipment. The communities in the project area are very concerned about the
safety risks associated with construction of the power transmission line, which will involve high-
tension electricity, movement of tracks carrying construction equipment and existence of
substations around Mabibo area. The contractor will have to be sensitive of this issue during
mobilization and construction and mitigation measures associated with the raised concerns
should be implemented.
 Noise and Dust emission

Local communities were concerned that development of the project especially during
mobilization and construction phases; project activities will generate noise and dust. This may
affect the health of the workers and the people in surrounding areas. The communities
recommended contractor to dampen the ground during construction in order to avoid or reduce
dust emission.
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 Encroachments of TANESCO way leave
During the field survey, it was revealed that some business and settlement structures were
located within the existing way leave of TANESCO in Ubungo and Kimara wards. During
discussion with community and local government officials, they admitted that they are utilizing
the TANESCO Way leave for various activities illegally and therefore, they expressed their
willing to vacate the area before the commencement of the project. Those who are engaged with
vehicle maintenance at Ubungo Kisiwani were concerned with the possibility of getting
alternative areas for their activities since they are solely relying on these areas for their
livelihoods. Main Significant Impacts
Main significant positive impacts
 Improvement quality, reliability and efficiency of power supplied

 Increased access to electricity
 Benefits to local communities and Government in terms of revenues generated from
various auxiliary activities accelerated by the project
 Employment and income to local people
Main significant negative impacts include
 Loss of land and other properties/assets

 Change in levels of risk of diseases transmission including HIV/ AIDS and STDs.
 Change in level of Waste generation and management issues, including dealing with spoil
materials
 Social disturbances from grave removal among others
 Accelerated soil erosion due to increased surface runoff, removal of vegetation cover and
storm water
 Increased gaseous pollution
 Change in aesthetics and landscape
 Risks, hazards and accidents
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Enhancement measures
 Introduce and implement efficient tax collection systems,

 Improve transparency and accountability in managing government resource.
 Give priority of employment opportunities to the local communities and make it gender
equitable.
 Embark on deliberate policy to train local people in skilled jobs so as to benefit from the
Power transmission line project.
Mitigation measures
 Continuous awareness programs on HIV/AIDS and providing and equipping of VCT

facilities and preventive gears.
 Compensate fairly and promptly the affected communities.
 Undertake proper waste water treatment and disposal of the other waste.
 Undertake regular maintenance services to ensure equipment and vehicles are in line with
prescribed emission standards.
 Developer to use appropriate technology that will minimize emission of gaseous and
particulate matter.
 Enforce use of polluter pays principal for pollution of river, streams, soils and marine
environment
 Raise awareness for foreigners to observe host culture, norms and values.
 Prepare contingency plan for unplanned accidents and hazardous.
Project Alternatives
The ‘No Project Alternative’
The „no project alternative‟ is the option of not undertaking the proposed project or any of its
alternatives. The “no project alternative” provides the baseline against which the impact of other
alternatives should be compared. It is expected that the construction of the 220kV transmission
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line from kinyerezi T-Off point to new substation at Mabibo area would have more potentials
benefits than negatives thus the „no project alternative‟ is over ruled.
Alternative location including connecting the line to the existing Ubungo substation
The proposed project involves construction of new substation at Mabibo area. With the
development of new substation the transmission line from Kinyerezi will bypass Ubungo
substation and touches some few houses adjacent to Ubungo substation. As an alternative to this
approach the proposed line from Kinyereze T-off point should connect to Ubungo substation and
avoid affecting households adjacent to Ubungo substation and business taking place adjacent to
Ubungo substation.
Mitigation Measures and Mitigation Plan
The Environmental Management Plan (EMP) outlines mitigation and enhancement measures
addressing all predicted significant negative and positive impacts as per the EIA report. The
EMP requires the developer to implement mitigation and enhancement measures for predicted
impacts and demonstrate compliance to environmental standards relevant to Tanzania and/ or as
adopted from international organisations. The cost of mitigation/ enhancement to the developer
is about USD 600,000.00 which is relatively low and manageable. A larger proportion of the
mitigation/ enhancement cost are due to the government but in this EIA these cost have not been
determined or included in the report. The developer will have to set aside a budget to cover the
cost of mitigating all impacts as addressed in the EIA document.
Environmental Monitoring Plan
A Monitoring Plan presented as part of this EIA details the parameters and frequencies for
measurement or monitoring as well as institutional arrangement for monitoring. Monitoring
would entail examination of whether impacts have actually occurred as predicted, the
effectiveness of mitigation measures and compliance to national and international standards.
Reports from the monitoring process would provide information that might be used for
intervention purposes. Various parameters including social, economic and
biological/ environmental ones would be considered in the monitoring process. The main
responsibility for monitoring is with the developer and it would cost about TZUSD 80,000.00.
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Other players in monitoring include the government i.e. Ministry of Energy, National
Environment Management Council (NEMC), Ubungo Municipal Council and Ministry of Land and
Human Settlement Development as identified in the Plan. The cost for the participation of government
institutions in monitoring is not included in this EIA.
Cost Benefit Analysis
The cost benefit analysis for this project has not evaluated the project from the point of view of
its IRR and NPV because; the financing mechanism for the project is a grant and not a loan,
where IRR and NPV would have been important. However, the EIA team has worked out the
economic analysis for transmission line routes of the Project for Reinforcement of Supply from
Kinyerezi Power Station. Prior to the selection of the final route option, six alternatives were
comparatively analyzed on the basis of technical, economic and social-environment criteria.
Based on the analysis, EIA Team selected the most feasible option, the 9 km route.
The proposed project will positively contribute to revitalize the industries and economic
activities in Dar es Salaam and improve stable operation of public welfare facilities and
healthcare services as well as the living environment of local residents
Decommissioning
The proposed transmission line system is expected to operate for at least 40 years before it comes
to an end. There will be some components of the project that will be closed as soon as their
requirement has come to the end. Activities to be done during decommissioning include
demolition of power plant and hauling rubble and waste materials from the demolition. Several
impacts (negative and positive) are likely to occur as result of the decommissioning.
In implementing decommissioning activities, TANESCO will prepare a detailed

decommissioning plan to ensure that environmental and social impacts are minimized in order to
comply with environmental legislations and policy requirements. In decommissioning phase,
TANESCO will form a team of experts with a representative from the relevant national, regional
and local government bodies to monitor the implementation of the decommissioning plan.
Impacts which need to be considered during decommissioning include the following:
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 Soil erosion
 Surface run off and surface water quality
 Noise and Vibration
 Waste generation
Mitigation measures which need to be considered includes
 TANESCO/Contractor to schedule decommissioning to be scheduled during dry season.

 TANESCO/Contractor to ensure spoil material from demolished infrastructure is
appropriately disposed away from wetlands, water sources.
 TANESCO/Contractor must to all decommissioning activities are confined to core areas.
 TANESCO to ensure there is no unnecessary movement of vehicle.
Conclusions and Recommendations
The proposed Kinyerezi T – Off Point to the New Mabibo Substation transmission line is located
in Ubungo Municipality, Dar es Salaam Region. The proposed development of power
transmission line from Kinyerezi T – Off Point to the New Mabibo Substation traverses within
covering four wards and seven mtaas, namely Kimara (Mavurunza, Kilungule A and Kilungule
B), Makuburi (Kibangu), Ubungo (Kibo and Ubungo Kisiwani) and Mabibo where the substation
will be located.
The potential impacts have been identified and evaluated for the project on the existing
environment (biophysical, social and health). Mitigation measures have been recommended for
unavoidable impacts considered significant, to reduce the rating of their identified adverse
effects to levels as low as reasonably practicable. Recommendations have also been made to
enhance the benefits of the identified positive impacts. A project-specific Environmental and
Social Management Plan (ESMP) for assessing the effectiveness of the mitigation measures in
controlling identified significant impacts has been recommended.
The EIA has shown that with the implementation of the recommended mitigation measures
embodied in the Environmental and Social Management Plan could be executed and
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decommissioned with minimal adverse impacts on the environment. The Projects will result in
substantial economic benefits to the Dar es Salaam economy and Tanzania in general through
increased electric power transmission and distribution. The local communities shall also benefit
immensely from the project through employment opportunities and increased financial flows
from supply of materials and contracts as well as community development projects that
TANESCO will be committed to put in place.
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TABLE OF CONTENTS
DECLARATION ............................................................................................................................ ii
ACKNOWLEDGEMENT ............................................................................................................. iii
EXECUTIVE SUMMARY ........................................................................................................... iv
LIST OF ABBREVIATIONS ...................................................................................................... xxi
1.0 INTRODUCTION .................................................................................................................... 1
1.1 Background of the Project ........................................................................................................ 1
1.2 Rationale of the project ............................................................................................................. 2
1.3 Scope and objectives of the Environmental Impact assessment ............................................... 3
1.4. Approach and Methodology in the EIA Study ........................................................................ 4
1.4.1 Approach for Environmental Issues............................................................................... 4
1.4.2 Approach for the Assessment of Land Use Issues ......................................................... 5
1.4.3 Approaches for Socio-economic Issues ......................................................................... 5
2.0 DESCRIPTION OF THE PROJECT COMPONENTS ............................................................ 7
2.1 Project Location ........................................................................................................................ 7
2.2 Description of the Project Area................................................................................................. 7
2.3 Project Components .................................................................................................................. 8
2.3.1 Transmission Lines ........................................................................................................ 9
2.3.2 Substation..................................................................................................................... 10
2.4 Project Activities ..................................................................................................................... 12
2.4.1Mobilization phase ........................................................................................................ 12
2.4.2 Construction Phase....................................................................................................... 13
2.4.3 Operation...................................................................................................................... 13
2.4.4 Decommissioning ........................................................................................................ 13
3.0 POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK ........................................... 15
3.1 Introduction ............................................................................................................................. 15
3.2 Relevant Policy and Legal Frameworks in Tanzania ............................................................. 15
3.2.1 The Policy Framework ................................................................................................. 15
3.2.2 Regulatory Framework ................................................................................................ 23
3.3 TANESCO‟S Health, Safety and Environmental (HSE) Guidelines...................................... 31
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3.4 The Institutional Framework................................................................................................... 31
3.5 Relevant International Conventions and Treaties ................................................................... 32
3.5.1 International Conventions ............................................................................................ 32
3.5.2 International Convention on Biological Diversity ....................................................... 32
3.5.3 The African Convention on the Conservation of Nature and Natural Resources, 1968
............................................................................................................................................... 33
3.6 International Standards and Guidelines .................................................................................. 33
3.7 JICA‟S Guidelines for Environmental and Social Considerations ......................................... 34
4.0 EXISTING BIOPHYSICAL AND SOCIO-ECONOMIC ENVIRONMENT ....................... 35
4.1. Physical and Biological Environment .................................................................................... 35
4.1.1 Location and topography ............................................................................................. 35
4.1.2 Climate ......................................................................................................................... 36
4.1.3 Geology and Soils ........................................................................................................ 38
4.1.4 Biodiversity, flora and fauna........................................................................................ 39
4.1.5 Ambient Air Quality .................................................................................................... 41
4.1.6 Water quality................................................................................................................ 52
4.1.7 Water Resources .......................................................................................................... 54
4.2 Socio-economic information ................................................................................................... 54
4.2.1 Administrative Structure and Boundaries .................................................................... 54
4.2.2 Demographic Characteristics ....................................................................................... 56
4.2.3 Social services .............................................................................................................. 57
4.2.4 Economic Activities ..................................................................................................... 63
4.3 Socioeconomic Information and Profile of Project Affected Persons (PAPs) ....................... 67
4.3.1 Age and sex .................................................................................................................. 67
4.3.2 Educational background............................................................................................... 67
4.3.3 Marital status ................................................................................................................ 68
4.3.4 Average Households size ............................................................................................. 68
4.3.5 Occupation ................................................................................................................... 69
4.3.6 Source of income and Average monthly income ......................................................... 70
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4.3.7 Type of impacted house structures .............................................................................. 70
4.3.8. Domestic assets of the households .............................................................................. 71
4.3.9 Willingness to relocate and Compensation preference ................................................ 71
4.3.10. Vulnerable People ..................................................................................................... 72
5.0 THE STAKEHOLDERS AND THEIR ENGAGEMENT ..................................................... 73
5.1 Introduction ............................................................................................................................. 73
5.2 Objectives of the Public Consultation..................................................................................... 73
5.3 Stakeholder identification and analysis .................................................................................. 74
5.4 Methods of Stakeholder Participation ..................................................................................... 76
5.4.1 Household Questionnaires ........................................................................................... 76
5.4.2 Focus Group Discussion and Checklist ....................................................................... 76
5.4.3 Public Meetings ........................................................................................................... 77
5.5 Identified Key Issues and Concerns ........................................................................................ 79
6.0 IMPACT ASSESSMENT AND ANALYSIS OF ALTERNATIVES ................................... 82
6.1 Impact Assessment Methodology ........................................................................................... 82
6.2 Impact Prediction .................................................................................................................... 82
6.3 Evaluation of Impact Significance .......................................................................................... 84
6.3.1. Biophysical Impacts assessment ................................................................................. 87
6.3.2 Socio-economic impact assessment ............................................................................. 99
6.4 Project Alternatives ............................................................................................................... 116
6.5 Proposed Mitigation measures .............................................................................................. 121
7.0 ENVIRONMENTAL AND SOCIAL MANAGEMENT PLAN (ESMP) ........................... 128
7.1 Introduction ........................................................................................................................... 128
7.2 Modalities of implementation of the ESMP ......................................................................... 128
7.3 Overall roles and responsibility of the parties ...................................................................... 129
8.0 ENVIRONMENTAL AND SOCIAL MONITORING PLAN ............................................ 136
9.0 COST AND BENEFIT ANALYSIS .................................................................................... 145
10.0 DECOMMISSIONING PLANS ......................................................................................... 149
11.0 SUMMARY AND CONCLUSION ................................................................................... 153
12.0 REFERENCE ...................................................................................................................... 155
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13.0 ANNEXES .......................................................................................................................... 157
13.1 Terms of References for Undertaking Environmental Impact Assessment for the proposed
construction of 9km of 220kv Transmission line from Kinyerezi T – Off Point to the New
Mabibo Substation, Dar Es Salaam ............................................................................................ 157
13.2 Stakeholders participated in the meetings, Views, comments and responses..................... 168
13.3 NEMC Screening Decision ................................................................................................. 178
13.4 NEMC Approval of Terms of Reference ............................................................................ 180
13.5 Signatures forms for the Consulted Stakeholders ............................................................... 182
13.6 Minutes from Public Meetings............................................................................................ 192
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List of Figures
Figure 1: The Map Representing the Proposed Kinyerezi – Mabibo 220kV Transmission Line... 8
Figure 2: Example of tower to be used for the proposed project (Left: 3cct and Right: 2cct ........ 9
Figure 3: Elements of a substation ................................................................................................ 10
Figure 4: Topographical condition of Dar es Salaam City ........................................................... 35
Figure 5: The average maximum and minimum temperature in Dar es Salaam .......................... 37
Figure 6: Average Rainfall in Dar es Salaam ............................................................................... 37
Figure 7: Geological formation of Dar es Salaam ........................................................................ 39
Figure 8: Vegetation cover of Dar es Salaam: .............................................................................. 41
Figure 9: Administrative Boundary of Dar es Salaam City .......................................................... 55
Figure 10: Percent of age-group distribution among the PAPs respondents ................................ 67
Figure 11: Percent distribution of PAPs occupation ..................................................................... 69
Figure 12: Percent distribution of Average head of household‟s income..................................... 70
Figure 13: Percent distribution of head of household‟s asset ownership...................................... 71
Lists of Tables
Table 1: Topographical condition and associated characteristics ................................................. 36
Table 2: Result of Particulate matter (PM10 and PM2.5) measurement at Mabibo Substation and
its receptor (Mabibo market, National Institute of Transport (NIT), Garage and way leave near
substation) ..................................................................................................................................... 44
Table 3: Result of Noise level Measurement at Mabibo substation and its receptor points
(National Institute of Transport (NIT), Garage, Mabibo market and way leave) ......................... 48
Table 4: Result of Vibration measurement at substation and it receptor (NIT, Mabibo market,
Garage, way leave)........................................................................................................................ 51
Table 5: Pollution load to surface water resources (kg day') in Dar es Salaam. ........................... 53
Table 6: Pollution loads to groundwater sources (kg day-1) in Dar es Salaam. ........................... 53
Table 7: Number of Divisions, Wards, Mtaa, Villages and Hamlets in the Three Municipalities of
Dar es Salaam .............................................................................................................................. 54
Table 8: Population distribution in Ubungo Municipality ............................................................ 56
Table 9: Health facilities in Ubungo Municipality ....................................................................... 58
Table 10: People Living with HIV in Dar es Salaam Municipalities ........................................... 59
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Table 11: Elders, People with Disabilities and Elders with medical exemption cards and
vulnerable group beneficiaries ...................................................................................................... 60
Table 12: Road network in Ubungo Municipal Council ............................................................... 60
Table 13: Generation of Waste by Source in DSM from 2012-2014 ........................................... 61
Table 14: Generation of Waste by Source in Ubungo Municipal Council in 2017 ...................... 62
Table 15: Estimated quantity of vegetable crops produced in kilogram (kg) ............................... 64
Table 16: Location of properties along the proposed transmission line ...................................... 66
Table 17: Head of Household‟s level of Education ...................................................................... 68
Table 18: Marital status of respondents ........................................................................................ 68
Table 19: Number of household members .................................................................................... 68
Table 20: List of vulnerable people in the project area ................................................................ 72
Table 21: List of stakeholders and their role on the proposed project .......................................... 74
Table 22: Number of Mtaas and participant involved in the meetings ......................................... 77
Table 23: Terminology and designations for impact characteristics ............................................ 82
Table 24: Type of Impact .............................................................................................................. 83
Table 25: Impact Correlation Matrix for Kinyerezi T – Off Point to New Mabibo Transmission
Line ............................................................................................................................................... 86
Table 26: Impact Significance on Water Resources due to tower construction and Wastewater . 87
Table 27: Impact Significance on ambient air quality due to construction .................................. 89
Table 28: Assumed construction Equipment sound pressure level inventory .............................. 91
Table 29: Impact significance of noise impact during construction phase ................................... 91
Table 30: Impact significance of solid and liquid wastes and improper waste management during
construction ................................................................................................................................... 93
Table 31: Impact Significance on Water Resources due to potential leaks/spills ........................ 95
Table 32: Impact significance of noise impact during operation phase........................................ 96
Table 33: Impact Significance of improper waste management during operation ....................... 97
Table 34: Significance of Impact on employment opportunities and local economy................. 100
Table 35: Significance on improvement quality, reliability and efficiency of power supplied .. 102
Table 36: Significance of Impact on Community Health and Safety during construction ......... 103
Table 37: Significance of impact on accidents, risks and hazards during construction ............. 104
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Table 38: Impact Significance on archaeological and cultural heritage ..................................... 106
Table 39 Vulnerable Households and Population ....................................................................... 107
Table 40 Impact Significance on vulnerable groups................................................................... 108
Table 41: Impact Significance of loss of land and structures ..................................................... 109
Table 42: Impact Significance of public properties (Toilet facilities and Fencing) ................... 111
Table 43: Significance on accidents, risks and hazards during operation .................................. 113
Table 44: Comparison between Alternatives for Transmission Line Routs ............................... 117
Table 45: Alternative Comparison on Overall evaluation of the Transmission Routs ............... 119
Table 46: Comparison between Alternatives for Substation Constructions ............................... 120
Table 47: Environmental and Social Management Plan (ESMP) for the Proposed Kinyerezi T –
Off Point to the New Mabibo Substation Transmission Line ................................................ 131
Table 48:Environmental and Social Monitoring Plan for the Proposed Transmission Line from
Kinyerezi T – Off Point to the New Mabibo Substation ............................................................ 139
List of Photos
Photo 1: Handheld laser Particle Counter model 3887 ................................................................. 42
Photo 2: Sound level CASELLA CEL -63x sound level meter .................................................... 47
Photo 3: PCE vibration measurement instrument ......................................................................... 50
Photo 4: Banana crops along the transmission line at Kimara ward in Ubungo Municipal ......... 65
Photo 5: Some of the permanent and temporal structures to be affected at Ubungo ward ........... 66
Photo 6: Garage in Ubungo Kisiwani and Grave yard in Mavurunza located within the way leave
of the Power Transmission line in Ubungo and Kimara wards. ................................................... 66
Photo 7: Mtaa public meetings with in the project area................................................................ 79
Photo 8: Graves in the existing Power transmission line likely to be affected by the New
transmission line at Ubungo Kisiwani in Ubungo ward ............................................................. 106
transmission line at Mavurunza mtaa in Kimara ward ............................................................... 106
Photo 10: Some of residential structures to be affected at Kibo mtaa in Ubungo ward ............. 109
Photo 11: Toilet facilities at Kilungule Primary School to be affected by the project ............... 111
Photo 12: Extended wall within the existing power transmission line at Ubungo Kisiwani ...... 111
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LIST OF ABBREVIATIONS
ARAP Abbreviated Resettlement Action Plan
BAT Best Available Technology
CBD Convention on Biological Diversity
CICL Children in conflict with the Law
DAWASA Dar es Salaam Water and Sanitation Authority
DMRS Dar es Salaam Marine Reserves System
EARG East Africa Resource Group
EIA Environmental Impact Assessment
EMA Environmental Management Act
EMP Environmental Management Plan
EWURA Energy and Water Utilities Regulatory Authority
HIV/AIDS Human immunodeficiency virus infection and acquired immune
deficiency syndrome
HSE Health, Safety and Environmental
IFC International Finance Corporation
IRR Internal Rate of Return
JICA Japan International Cooperation Agency
MG2 Morogoro two
NACTE National Council for Technical Education
NEMC National Environment Management Council
NESC National Environmental Standards Compendium
NGOs Non - Governmental Organization
NIT National Institute of Transport
NOX Nitrogen Oxides
NPV Net Present Value
NSGRP National Strategy for Growth and Reduction of Poverty
NSGRP National Strategy for Growth and Reduction of Poverty
OSHA Occupational Health and Safety
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PAPs Person Affected Projects
PM Particulate matter
PPE Person Protective Equipment
PWDs People With Disabilities
RoW Right of Way
RWSSP Rural Water Supply and Sanitation Programme
SGR Standard Gauge Railway
SIDP Sustainable Industrial Development Policy
SMEDP Small and Medium Enterprises Development Policy
SOPs Standard Operation Procedures
SOX Sulphur Oxide
STDs Sexual Transmission Diseases
TACAIDS Tanzania Commission for AIDS
TANESCO Tanzania Electric Supply Company Limited
TBS Tanzania Bureau of standard
TCU Tanzania Commission for Universities
TL Transmission Line
TPA Tanzania Port Authority
TPDC Tanzania Petroleum Development Corporation
TSCP Tanzania Strategic Cities Project
TSCP Tanzania Strategic City Program
URT United Republic of Tanzania
VCT Voluntary Counseling and Testing
VPO Vice President Office
VPO Vice President Office
WSDP Water Services Development Plan
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1.0 INTRODUCTION
1.1 Background of the Project

The Government of Tanzania in collaboration with the Japan International Cooperation Agency
(JICA) through Tanzania Electric Supply Company Limited (TANESCO) are in the plan to
construct a new 220kV transmission line from Kinyerezi T-off Point to the new 220/132kV
substation near Mabibo area. This unique project will involve construction of a new substation
and triple circuit towers from Kinyerezi t-off point to Ubungo substation (7km) and double
circuit towers from Ubungo substation to Mabibo substation (2km). The proposed transmission
line is estimated to cover a distance of 9km. The project will utilize existing wayleave of
Morogoro two (MG2) and existing Ubungo Ilala wayleave on the second portion of the line, the
new substation will be constructed on the existing wayleave corridor near Mabibo market and
National Institute of Transport (NIT). Therefore no new land will be acquired for construction of
the transmission line and the substation; rather the existing transmission line will be demolished
and replaced with the new one. However, the MG2 wayleave was acquired long time ago since
1960s before EMA came into force; the project has no EIA certificate which is the same to the
Ubungo – Ilala wayleave.
centerline. The survey reveals that, there are several ongoing human activities at the project
site. It was noted that the area near Ubungo substation has few residential houses and few mobile
shops which will be affected during project construction. Although these activities are done
illegally since the wayleave is the property of TANESCO but it was found important to seek the
best way to deal with them. These includes graveyards near Ubungo Maziwa and in Kimara
Mavurunza, few mobile shops and small vegetable gardens near Urafiki textile industry and few
pedestrian ways.
Gas pipelines and water pipelines were found using the same corridor however, a detailed report
will be prepared by the responsible parties i.e. DAWASCO and TPDC to avoid damage to
exsiting infrastructure. Since the line is planned to use existing wayleave the environmental and
social impacts are expected to be minimum however, proper attention including stakeholders
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engagement is of paramount important. The site can be reached through existing nearby road
infrastructures this includes Mandela and Maziwa roads in Ubungo and Kimara Mavurunza road
on Kimara side.
1.2 Rationale of the project

According to the Power System Master Plan, 2012, Dar es Salaam is a fast growing city in
Tanzania in terms of social and economic development. The fast growth of the city is the result
of a number of factors that include expansion of industrial base within the city, population
growth, development of new structures including tall buildings and expansion of transport
infrastructures such as railway (SGR), road network and expansion of Julius Nyerere
International Airport terminal three among others. The combination of economic growth,
housing and population growth, income growth and social development have all contributed to
the increased demand for electricity consumptions hence requiring reliable supply of power.
Ubungo Substation is mostly considered as the mother or primary grid substation to supply
power to the other substations around the city. Ubungo Substation is receiving 220kV from MG1
and MG2 lines, and from the following power plants: Kinyerezi (220kV), Ubungo one (220kV),
Ubungo two (132kV) and Songas (132kV) and then supplying power to other substation in Dar
es Salaam.
The overdependence on Ubungo Substation has sometimes brought difficulties in planning for
maintenance services and any technical problems can results to collapse of the national grid.
Therefore the construction of new Mabibo 220/132kV substation will reduce overdependence to
Ubungo substation and ensure power security to the national grid and to the city of Dar es
salaam. By considering the unforeseen impacts to the national grid that might arise from any
technical failure on Ubungo Substation the construction of new Transmission line and the
substation to evacuate power from Kinyerezi Power plant is of vital importance.
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1.3 Scope and objectives of the Environmental Impact assessment
According to the Environmental Impact Assessment and Audit Regulations of 2005, all energy
development projects require a mandatory EIA. It is on this basis that the National Environment
Management Council (NEMC) directed TANESCO to carry out a full EIA study after screening
the detailed project brief.
Aside from fulfilling the requirements of the Environmental Impact Assessment and Audit
Regulations (2005), this EIA is also aimed at meeting requirements set by the Japan International
Cooperation Agency (JICA), in particular the JICA Guidelines for environmental and social
considerations (JICA Guidelines). Based on these regulations and requirements, the Project will
ensure that Implementation of this project may have negative and positive impacts on social,
economic and environment within the project area and beyond, hence this S intends to address
those impacts.
This EIA study seeks to establish biophysical and socio-economic baseline data of the project
seating and surrounding environment. The outcome of this assessment will inform TANESCO
on likely socio-economic and environmental impacts and recommend mitigation measures,
including Environmental and Social Management & Monitoring Plan. Thus, the main objective
of the EIA is to provide to decision-makers indications of the likely consequences of the project
for their actions or decisions. Therefore, an EIA must: document, in as much detail as possible,
the baseline conditions prevailing before the project construction starts; assess and report on the
likely magnitude and significance of impacts, both positive and negative; propose mitigation
activities to reduce negative impacts and monitoring of important impacts during and after
construction; The Environmental Impact Assessment and Audit Regulations of 2005 p.g 5.
This EIA is in response to the proposed transmission line from Kinyerezi T – Off Pointto New
Mabibo Substation. The EIA is intended to provide decision-makers with sufficient background
information to: (i) assess the socio-economic, biophysical and ecological conditions of the
proposed project area; (ii) predict significant impacts that could be caused by the project; (iii)
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consider the project alternatives, mitigation measures and prepare environmental management
and monitoring plan. The specific objectives of this EIA are:
 To provide detailed description of the proposed power transmission line activities.
 To establish an environmental and socio-economic baseline analysis in the study area and
identify issues of significant bio-physical, ecological/biological and socio-economic
impacts that is likely to be affected by the proposed project.
 To provide an understanding of the policy, legal and institutional framework for the
project including a forum and opportunity for public and stakeholder involvement.
 To identify, predict and evaluate environmental, social and economic impacts associated
with the proposed project activities and provide the required alternatives for mitigation.
 To develop appropriate environmental and socio-economic management plan for
implementing, monitoring, and reporting of the mitigation measures.
This Environmental Impact assessment (EIA) report presents an assessment of the potential
environmental and social impacts associated with the proposed New Mabibo substation and
transmission line from Kinyerezi T – Off Point to New Mabibo Substation in Tanzania. This
report has been prepared for TANESCO and presents the objectives, methodology and outcomes
of the EIA study.
1.4. Approach and Methodology in the EIA Study

The following approaches and methods were used in carrying out the scoping exercise
1.4.1 Approach for Environmental Issues
Data on environmental issues were obtained through literature review and assessment of existing
environmental baseline (e.g. vegetation, characteristics of land, geomorphology, water resources
and water quality, existing waste practices. To complement the review of available information,
field visits in project area from Kinyerezi T-off point to Mabibo substation where the project will
be located was made. Site visit was undertaken to assess project location and layout in relation to
the proposed development activities; assess the physical characteristics of the project area
including the geography, water, vegetation, economic activities, human population settlement
and distribution in order to gauge the kind of issues and impacts that are likely to be due to the
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implementation of this project. In all the areas various issues related to the proposed
development were identified.
1.4.2 Approach for the Assessment of Land Use Issues
A preliminary understanding of the current use of the land in the proposed project area was
collected through field observation and discussion with local communities occupying and using
the areas. The field observation and discussions focused on the main current uses of the land; the
significance attached to their lands; the possible impact of disturbance to economic activities and
wildlife during implementation.
1.4.3 Approaches for Socio-economic Issues
Literature review, public consultations and extensive stakeholder involvement constituted the
main approach for collecting socio-economic data and issues. On the basis of this approach,
existing socio‐economic baseline along the transmission line such as local population indicators
such as demographics characteristics, employment, economic activities, income levels, land use,
NGO‟s, social organizations, education, health and development programs were undertaken. In
order to collect socio-economic baseline information, the following methods and tools were
used:
 Literature Review
This method was applied in order to have secondary data about the proposed project. For
instance, the consultant had to review feasibility study report, EIA for Rehabilitation of
Substations and Construction of new Lines and Substations in Dar es salaam, December 2013
and the reviewing of the relevant legislations such as national policies, laws and regulations
governing the power transmission project in Tanzania including the new (Environmental Impact
Assessment and Audit) (Amendment) Regulations, 2018. Similarly information and other types
of data describing the project area were reviewed.
 Household Survey
In order to understand the socio-economic condition of communities around the proposed
development, Ubungo Municipal socio-economic profiles was reviewed and supplemented by a
household survey. In conducting a detailed household‟s survey, the following tools were used:

Household questionnaire: A household questionnaire was prepared and used for collecting
basic information from all possible affected people. In addition, the questionnaire collected
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household demographic information, type of residential houses, level education, economic
activities, and average household‟s income and land related issues from the household‟s
heads along the proposed development. Household‟s survey was conducted in three streets
in Ubungo ward, Mabibo ward and Makuburi ward. The survey covered socio-economic
characteristics of the likely affected person and the data will be used for the preparation of
Abbreviated Resettlement Action Plan for the project. The targeted audience for household
questionnaire was all local community house and business activities within the way leave
corridor likely to be affected by the project was conducted.
 Checklist: A checklist was prepared and used for collecting qualitative data on social
services that are obtained in the ward and streets (mtaa) falling within the way leave
corridor, main economic activities, land use, and views regarding the proposed transmission
line development in the area.
 Meetings and Stakeholders consultations
Consultations: Stakeholder consultations were conducted at municipal level, wards level and
Mtaa /street likely to be traversed by the proposed transmission line. Issues discussed were
component of the project, areas traversed by the project, dimension of the way leave required
and need for local community to be informed of the proposed project and possibly participate
during construction as labor force. Also consultation meeting were used as platform to provide
general information about the project and receiving their concerning about the project.
Site visit
To complement the review of available information, a field visit to the project area was carry out
to assess project location and layout in relation to the proposed development activities to gauge
the impacts that are likely to be of interest in the EIA process. Field visit was carried out by
visiting the project site from Kinyerezi t-off point at Mavurunza mtaa in Kimara ward to Mabibo
substation located at Mabibo area. Assessment of biophysical environment, available
infrastructures within the corridor, settlement, vegetation, streams and rivers in relation to the
proposed construction activities were done.
This approach helped the team to analyze natural environment of the project area and solicit
information on the socio-economic aspects at the affected environment in the project area.
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2.0 DESCRIPTION OF THE PROJECT COMPONENTS
2.1 Project Location
The proposed 220 KV transmission line project will be located in Dar esSalaam particularly in
Ubungo municipality. The 9 km transmission line traverses four wards namely of Kimara,
Makuburi, Ubungo and Mabibo. The new 220kV transmission line from Kinyerezi T-off Point to
the new 220/132kV substation near Mabibo area is presented in figure (1). The project intends to
utilize existing MG - 2 corridor from Kinyerezi T-off point at Mavurunza mtaa in Kimara ward
to the existing Ubungo substation about 7km, while the remaining 2km will utilize the 132kV
Ubungo - Ilala wayleave to Mabibo near the National Institute of Transportation (NIT). The
project traverses the four wards and eight mtaas in blackets, namely, Kimara (Mavurunza,
Kilungule, A, Kilungule B and Kimara Baruti), Makuburi (Kibangu), Ubungo (Kibo and Ubungo
Kisiwani) and Mabibo (Mabibo).
2.2 Description of the Project Area

TPDC Gas pipeline and DAWASA water infrastructure.Similarly, the whole stretch from
Mabibo to Kinyerezi T-off point is surrounded by settlement located outside the wayleave with
some encroaching the wayleave particularly at Mavurunza mtaa, Kimara baruti mtaa and
Kilungule A and B mtaa in Kimara ward. Also way leave encroachment can be seen at Mabibo
where NIT boundary wall is more than 5 m within the way leave, Port authority building has its
wall encroaching the way leave and NRS godown has some of ts facility within the wayleave. In
addition to those parmanent encroachment, there are temporary business near Ubungo substation
on either side of the Ubungo bridge, garages at Ubungo maziwa, vegatable farming near Urafiki
textile industry and grave yards at Ubungo Maziwa, mavurunza near settlements.
The terrain of the project area is relatively undulating from Kinyerezi t-off point to ubungo
substation; and from Ubungo substation to Mabibo substation the terrain is relatively flat. Access
within the way leave corridor is poor, the previous existing access roads have been eroded
severely and damaged by surface run-off and pratically not accessible. However the project site
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can be accessed via sevaral feeder roads emerging from Dar-Moro main road crossing the way
leave at different points.
Figure 1: The Map Representing the Proposed Kinyerezi – Mabibo 220kV Transmission Line
Source: JICA Preparatory Survey Team, 2020
2.3 Project Components

The proposed project will involve construction of a new substation and triple circuit towers from
Kinyerezi t-off point to Ubungo substation (7km) and double circuit towers from Ubungo
substation to Mabibo substation (2km). The major components of this project are 220/132KV
Substation and Transmission line.
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2.3.1 Transmission Lines
The Transmission line consisting of series of towers of different type (Figure 2) and insulator
that will run a total length of 9km with 220/132kV triple circuit conductors (3cct) from
Kinyerezi T-off point to Ubungo Substation (7km) and double circuit conductors (2cct) from
Ubungo S/S to Mabibo area (2km). Since there is no designed standard for way leave size for
triple circuit conductors and towers it was recommended to use 40m size ROW which will cover
20m wide on both sides from the centreline. The proposed transmission and substation will
utilize the existing way leave to avoid relocation of people and expensive compensation
therefore no additional land will be acquired for the proposed project. Example of tower to be
used for the proposed project is shown in Figure 2.
Figure 2: Example of tower to be used for the proposed project (Left: 3cct and Right: 2cct
Source: JICA Preparatory Survey Team, 2020
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2.3.2 Substation
The project will involve the construction of a new 220/132kV substation at Mabibo area near the
National Institute of Transport (NIT). The new 220/132kV substation is proposed to have 200
MVA transformers x 2 and Hybrid Gas Insulated Switchgears (H-GIS) which can be applied due
to the limited area of 50m x 500m. The substation area is planned to be within the ROW of
transmission line between Mabibo market and the compound of the National Institute of
Transport (NIT). No additional land acquisition is expected for the substation. Facilities expected
at substation are control building with switchgear, cable trenches, transformers, reactors, and
vehicle parking bay. Transformers will be filled with oil without PCBs. Also, the substation will
be fenced properly to minimize the potential for the accidental electrocution to people and
animals, and is accessible by a permanent road. The preliminary design for the proposed
substation is shown in Figure 3.
Figure 3: Elements of a substation

A: Primary power lines' side B: Secondary power lines' side
1. Primary power lines
2. Shield wire
3. Overhead lines
4. Transformer for measurement of electric voltage
5. Disconnect switch
6. Circuit breaker
7. Current transformer
8. Lightning arrester
9. Main transformer
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10. Control building
11. Security fence
12. Secondary power lines
Functions of the Substation
The proposed substation is designed to function as follows:
 As voltage control mechanism through the transformers to step-up or step-down the
system voltage as case might be, thereby lowering transmission losses.
 Correction of power factor in the circuits when the reactive loads are there to protect the
generating plants and increase efficiency.
 For load shedding purposes on the distribution network there maintaining system balance.

work, using circuit breakers and isolators including load demand sharing.
 Bus bar splitting for power distribution arrangement.
2.3.3 Materials and Other Utilities

Matrials required includes materials for civil works (foundation for transformers and reactors),
transformers and reactors. Other utilities required include protection systems are needed for main
and back-up in case of unexpected system failure,Communication and SCADA System and
Firefighting System.
A list of equipment/machine(s) of the Project
Components Capacity
Procurement and Installation Work
1. 220/132 kV Mabibo Substation (a) 200 MVA*, 220/132/33 kV transformer 2 units
(b) 220 kV switchgear 1 Lot

(c) 132 kV switchgear 1 Lot
(d) Control/supervisory and Protection panels 1 Lot
(e) Substation power supply system 1 Lot
2. Expansion of Ubungo Substation (a) 220 kV switchgear (Transmission line bay) 1 Bay
(b) Control and Protection panels 1 Lot
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3. Reinforcement of Switchgear at a) Replacement of existing 220 kV equipment 1 Lot
Kinyerezi Power Plant
for 2 x transmission line feeders
4. 220 kV Transmission Line (a) 220 kV Transmission Line (Triple circuit) Approx. 7.0
km
from Kinyerezi Power Plant (T-off point) to
Ubungo Substation
(b) 220 kV Transmission Line (Double circuit) Approx. 2.0
from Ubungo Substation to Mabibo Substation km
1 Lot
5. 132 kV Transmission Line - 132 kV Transmission Line (Double circuit)
between the existing transmission line (Ubungo
– Ilala) and Mabibo Substation
Procurement Work
6. Maintenance Tools for the 1 Lot
Equipment to be procured under the
Project
7. Spare parts for the Equipment to be 1 Lot

procured under the Project
Civil Work
8. Control Building of Mabibo 1 building

Substation
2.4 Project Activities

As part of project implementation, this project will involve several activities categorized into
different phases as explained below:
2.4.1Mobilization phase
The project activities during mobilization phase include mobilization of human resources,
designing of the structures, obtaining various permits that include environmental permits,
mobilization of resources, and importation of machinery and purchase of various construction
materials. Mobilization entails establishing work camp and offices on the site, assembling
equipment, construction work force as well as materials. Work camp will be established to
provide shelter and storage facilities for construction material, fuel and lubricants, workshops,
logistics and offices for less than 5 months during the construction period.
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2.4.2 Construction Phase
The Construction phase will include excavation of tower foundations, erecting the towers,
stringing of conductors and securing the site and construction of facilities for the substations and
transformers as needed. Machines and manual labor will be involved in the construction phase.
Some areas will require preparation of the access roads to bring equipment, workforce and
materials to the designated sites. Appropriate measures for mitigation will be considered
according to the Environmental and Social Management Plan (ESMP). Some labor forces may
be recruited from local communities - especially for the simple and manual operations that could
easily be accomplished using local skills. The construction phase is estimated to take roughly
about 12 to 24 months.
2.4.3 Operation
The proposed transmission line is designed to last for 50 years where project operation with
periodic maintenance and repairs will be undertaken. During operation, the power line will
function as transmitter of power from Kinyerezi gas fired power plant and another circuit will
transmit Morogoro two power line to the new substation at Mabibo. The new substation will step
down and step up power as per received and required current at particular time depending on
prevailing condition of the power grid. Monitoring, repair, and maintenance of the transmission
line and substation will be done as per manufacturer and designers specification taking into
account emergence issues and corrective actions in case of accidents and emergencies.
Maintenance of 220 kV transmission line, safety management of the line maintenance and
safeguard of the RoW will be done in the operation phase.
2.4.4 Decommissioning
Decommission of the project will take place in two phases, phase one decommission will involve
demolition of existing doble circuit towers from Kinyerezi T-off point to Mabibo area where new
triple circuit towers will be constructed. Demolition of existing tower will involve removal of
insulators, cables, dismantling of towers and excavation of previous foundations to remove
casted concrete. Other activities will involve removal of waste from dismantled towers and
rubles from casted foundations and clearing of the site to allow new construction to take place.
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Phase two of the decommissioning will involve the decommission of the new line when the
transmission line and substation become unusable from reasons, decommissioning of the
transmission line and substation may be carried out in the ESMP to be made as a part of the
Environmental Impact Assessment report.
The main issues of concern will be removal and handling of cleared materials. Other issues
include noise and dust level due to demolition of structures and restoration of the area.
Decommissioning will involve the demolition of the structures and rehabilitating the land on
which the structures were established to its original condition.
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3.0 POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK
3.1 Introduction
The proposed 220kV transmission line from Kinyerezi T-off Point to the new 220/132kV
substation at Mabibo area is expected to generate both positive and negative impacts on the
ecological, economic and social environment. As a result, there is need to ensure that throughout
the life of the project, there is compliance with relevant national polices, legislations,
administrative frameworks and standards on the management of the environment. Tanzania has
also ratified several international agreements and conventions on environmental management,
which demand interventions in, project planning, construction and operation. Also, other policies
such as from the IFC and World Bank Policies and JICA guiding energy projects, need to be
taken into account. Below is a review of the policies and laws that are relevant to the proposed
development.
3.2 Relevant Policy and Legal Frameworks in Tanzania

3.2.1 The Policy Framework
The proposed construction of the 220kV power transmission line from Kinyerezi T-off Point to
the new 220/132kV substation near Mabibo area about 9km; which will involve construction of a
new substation and triple circuit towers from Kinyerezi T-off point to Ubungo substation (7km)
and double circuit towers from Ubungo substation to Mabibo substation (2km) will have
ramification to several policies. Below is a brief description of some of the relevant policies that
the project will touch upon and which have to be adhered to for guidance.
National Environmental Policy, 1997
The environmental policy of 1997 seeks to provide the framework for making the fundamental
changes that are needed to bring consideration of the environment into the mainstream of the
decision making processes in the country. The National Environmental Policy, 1997 stresses that
for a framework law to be effective, environmental standards and procedures have to be in place.
The National Environmental Policy of 1997 outlines six major environmental tribulations that
include ensuring sustainability, security and the equitable use of resources; environmental
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pollution; land degradation and loss of wildlife habitats and biodiversity (URT, 1997). The
Policy stipulates that an EIA shall be mandatory for all major projects to ensure that
environmental concerns receive due and balanced consideration in reconciling urgent
development needs with long-term environmental sustainability goals. The proposed project of
220kV power transmission line will have to be developed taking into account the requirements of
this policy, particularly issues related to environmental pollution and land degradation.
National Energy Policy, 2015
The main objective of the National Energy Policy of 2015 is to provide directives for sustainable
development and utilization of energy resources to ensure optimal benefits to Tanzanians and to
contribute towards the transformation of the national economy. Tanzania is intending to become
an industrial – middle income country by 2025 and therefore, provision of affordable, sustainable
and reliable energy is key prerequisite to the success of the planned development goal of
becoming industrialized.
The main scope for the Energy Policy of 2015 includes the following:
(a) To promote petroleum and gas upstream, midstream and downstream activities
(b) To promote renewable energy and energy conservation (non -hydro renewables include
solar, wind, biomass and geothermal)
(c) To address cross cutting issues such as matters of subsidies, institutional, legal,
regulatory as well as monitoring and evaluation.
Matters related to the environment are discussed under the cross cutting theme of the policy,
which focuses on (a) Transparency and accountability (b) Regional and International
Cooperation (c) Safety, Occupational Health and Environment, and (d) Gender issues and
HIV/AIDS in the Energy. In this context, the Policy is advocating the application of tools such as
Environmental Impact Assessment (EIA) for energy projects. Also, the Policy is promoting
establishment of disaster prevention and response plans and the use of practices such as Polluter-
Pays- Principle. Therefore, in order to meet the Policy objectives, the Government shall
undertake the following measure:
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a) Enforce environmental, health and safety standards and laws governing the Energy
Sector
b) Ensure that contractors in the energy sector establish a decommissioning fund for
environmental restoration where appropriate,
c) Strengthen institutional capacity in monitoring and enforcement of laws and
regulations on safety, occupational health and environmental management.
The proposed 220kV Transmission line from Kinyerezi T-off Point to the new 220/132kV
substation at Mabibo area must take into account the provisions of this Policy in ensuring that the
final project promotes the supply of energy in the most environmentally and socially acceptable
way.
The National Natural Gas Policy, 2013

The natural gas Policy of 2013 provides a comprehensive framework for addressing challenges
that this sector faces. The Policy seeks to ensure optimal benefits to Tanzanians and the national
economy. Maximization of the benefits will be attained through the optimization of the value
chain, which includes up, mid and downstream activities. The formulation of this Policy was
aligned with the National Development Vision 2025, the National Energy Policy of 2003, the
Five Year Development Plan (2011/12 - 2015/16) and the Second National Strategy for Growth
and Reduction of Poverty 2010/11 - 2014/15 (NSGRP/MKUKUTA II), and other sectoral and
cross-sectoral policies.
Specifically, the National Natural Gas Policy has several objectives but the following are
relevant to this project:
 To ensure the reliability of natural gas supply;

 To promote linkages between the natural gas industry with other strategic sectors of the
economy;
 To substantially improve Corporate Social Responsibility in communities neighboring
natural gas facilities and operations;
 To promote rational use of natural gas in all sectors of the economy;
To ensure compliance with Health, Safety and Environment standards in the natural gas
 value chain;
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 To ensure that development of natural gas industry regionally and internationally benefits
Tanzania;
 To support activities in the natural gas industry based on gender issues and addressing
HIV/AIDS and other infectious diseases;
 To ensure maximization of benefits from the natural gas industry through PPP projects.
The proposed development, which is intended to improve power transmission and distribution in
Dar es Salaam, will convey energy from Kinyerezi substation carrying both gas powered and
hydro powered energy will take into account some of the objectives of this policy.
Water Policy, 2002
The main objective of the National Water Policy of 2002 is to develop a comprehensive
framework for sustainable development and management of the Nation‟s water resources and
putting in place an effective legal and institutional framework for its implementation (URT,
2002).
The Policy recognizes the fundamental but complicated linkages between water and socio-
economic development, including environmental services. The proposed development will put
additional demand on water for construction in an area where already, water is a very scarce
resource. This EIA will examine water demand and supply issues for the proposed development
in relation to available resources, other users and address the implications of water demand
arising from the establishment of transmission line
The National Health Policy, 2007

The National Health Policy defines health as a state of wellness physically, mentally, socially
and the absence of diseases. Further, it notes “good health contributes to personal development,
the development of the family and the country; especially in ensuring improved livelihoods and
poverty reduction” (URT, 2007). In view of this, the Policy aims to achieve sustainable welfare
for the society.
The main goal of the National Health Policy of 2007 is to provide geographically balanced and
in acceptable standards, affordable and sustainable health services in general. The general
objective of the 2007 Health Policy is to uplift the health status of the citizens, especially the
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vulnerable groups by putting in place health infrastructure that meets community expectations
and increase life expectancy of Tanzanians. To achieve this general objective and to realize the
policy goal, the National Health Policy has identified nine specific objectives including these two
that are directly related to the proposed development.
(a) To reduce the occurrence and spread of diseases and deaths among the citizens so as to
raise life expectancy
(b) To prevent and control infectious and non-infectious diseases especially HIV/AIDS,
malaria, tuberculosis, malnutrition and work place diseases.
Also, the Policy is promoting environmental cleanness in residential areas, work places,
improved worker‟s health and safety and promotion of nutritional programmes and to prevent
accidents. Further, the Policy is addressing crosscutting issues such as disaster management,
HIV/AIDS, gender focus, poverty reduction, human rights and environmental protection. The
proposed transmission line may trigger health challenges including those that this policy is
concerned about. The spread of HIV/AIDS in construction camps is a real threat that needs
attention. Thus many provisions of this policy are relevant to the project.
National Land Policy, 1995
The overall aim of the National Land Policy (URT, 1995) is to address the various and ever-
changing land use needs and “to promote and ensure a secure land tenure system, to encourage
the optimal use of land resources and to facilitate broad-based social and economic development
without endangering the ecological balance of the environment (ibid: 5). Several specific
objectives are outlined in the Policy; however, the following are directly related to the proposed
power generation project from Kinyerezi T-off Point to the new 220/132kV substation at Mabibo
area.
 Ensure that existing rights in land whether titled or customary rights of holders are
recognized, clarified, and secured in law;
 Ensure that land is put to its most productive use to promote rapid social and economic
development of the country;
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 Protect land resources from degradation for sustainable development.
The power transmission line will utilize existing way leave of Morogoro two (MG2) and existing
Ubungo way leave on the second portion of the line, the new substation will be constructed on
the existing way leave corridor. However this policy will need to be abided throughout the
project development.
Sustainable Industrial Development Policy – SIDP, 1996
Sustainable Industrial Development Policy-SIDP (1996- 2020) (URT, 1996) is a framework for
Tanzania‟s industrialization process within the short, medium and long terms perspectives. The
main objectives of the SIDP include human development and creation of employment
opportunities; economic transformation for achieving sustainable economic growth; external
balance of payments; environmental sustainability ad equitable development (URT, 1996).
The Policy outlines several strategies for achieving the mission and objectives of
industrialization and a range of activities that are to be implemented within short, medium and
long-term priority activities. Within the short-term period (1996-2000), the Policy will promote
rehabilitation and consolidation of existing industrial capacities through a series of restructuring.
The focus is privatization of the public industries. During the medium term period (2000-2010),
the Policy promotes creation of new “capacities in areas with potential for gaining competitive
advantage including preparation for exploitation of the country‟s iron ore deposits taking into
account merging technological innovations” (URT, 1996). The long-term phase (2010-2022) will
focus on basic goods industries. The 5th Phase Government is promoting industrialization and
the attainment of middle-income level by 2025. The proposed power development will support
the objectives of this policy, which also recognizes the need for EIA prior to implementation of
the projects.
Small and Medium Enterprises Development Policy, 2003

The Small and Medium Enterprises Development Policy (SMEDP), (URT, 2003) harmonizes the
role of informal sector that constitute the bulk of the SMEs in Tanzania. The main objective of
the SMEDP is to foster job creation and income generation through promoting the creation of
new SMEs and improving the performance and competitiveness of existing ones to increase their
participation and contribution to the Tanzania economy” (URT, 2003: 16). The Policy defines
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SME as entities mainly based on non-farm economic activities in manufacturing, mining,
commerce and services, employing between 5 - 99 people with capital investment of Tshs. 5
million to 800 million (ibid: 4).
The proposed development is expected to stimulate growth and spread of SMEs that may be
engaged in a variety of activities, including small scale industries and manufacturing in view of
the availability of reliable and affordable energy supply. This Policy is relevant since additional
businesses that need reliable power are likely to be intensified as result of the improved power
transmission and distribution.
Community Development Policy, 1996
The Community Development Policy (URT, 1996) underpins the problems that communities in
Tanzania are facing, including underdevelopment and notes that people must be enabled to
develop their capacity to identify problems and develop ways of tackling them. The proposed
development will have major implications on community development in terms of providing
power that can stimulating growth in various sectors of the economy and improve human welfare
and livelihoods.
The National Employment Policy, 1997

The National Employment Policy (1997) aims to identify potential areas for employment and to
lay down strategies of how to utilize such opportunities in promoting employment in the country.
The proposed Project provides avenues for employment opportunity and thus supports the
national employment policy. Employment opportunities arising from this project should be
extended to all people in terms of skills, numbers and groups (youths, women and others as per
the policy).
National Human Settlements Development Policy, 2000

The overall objective of the National Human Settlements Development Policy (NHSDP) is to
promote the development of sustainable human settlement and to facilitate the provision of
adequate and affordable shelter to all people, including the poor. The policy outlines a number of
objectives including environmental protection within human settlements and protection of
natural ecosystems against pollution, degradation and destruction.
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The NHSDP recognizes planning and management of human settlement areas as one of the broad
human settlement issues. Within this regard, the NHSDP identifies environmental protection as
one of the strategic issues in human settlement planning and development. NHSDP also
addresses the following issues:
 Lack of solid and liquid waste management, leading to environmental deterioration;

 Emission of noxious gases from vehicles and industrial activities as a major cause of air
pollution in urban areas;
 Encroachment into fragile and hazardous lands (river valleys, steep slopes and marshlands)
leading to land degradation, pollution of water sources, etc.;
 Increasing dependence on firewood and charcoal as a main source of energy in human
settlements leading to depletion of forest, environmental deterioration and air pollution; and
 Un-authorized sand mining in river valleys leading to environmental degradation.
The proposed development aimed at improving power supply in the Dar Es Salaam, resulting
into reducing dependency on firewood and charcoal however relocating people may cause
human being encroaching into fragile and hazardous areas or unplanned settlement. This EIA
addressed the issue of human settlement and suggests mitigation measures.
The Tanzania Development Vision 2000

Composite Development Goal for the Tanzania Development Vision 2025 (URT, 2000) foresees
the alleviation of poverty through improved socio-economic opportunities, good governance,
transparency and improved public sector performance. These objectives, not only deal with
economic issues, but also include social challenges such as education, health, the environment
and increasing involvement of the people in working for their own development. The thrust of
these objectives is to attain a sustainable development of the people.
The Vision 2025 seeks to mobilize the people; the private sector and public resources towards
achieving shared goals and achieve sustainable semi-industrialized middle market economy by
year 2025. The improvement of the transmission line project is aimed at increasing supply of
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energy and increase employment opportunities to enable development to take place. The
improved power supply is expected to result into national development and improvement of
livelihoods.
3.2.2 Regulatory Framework

 The Environmental Management Act, 2004
The Evironmental Management Act no. 20 of 2004 seeks to provide for legal and institutional
framework for sustainable management of environment; it outline principles for management,
impact and risk assessments, prevention and control of pollution, waste management,
environmental quality standards, public participation, compliance and enforcement, as part of
implementation of the National Environment Policy.
Part VI of EMA (2004) deals with EIA and other assessments and directs that EIA is mandatory
for all development projects. Section 81(2) states that the EIA study shall be carried out prior to
the commencement or financing of a project or undertaking, while Section 81(3) states that a
permit or license for the carrying out of any project or undertaking in accordance with any
written law shall not entitle the proponent or developer to undertake or to cause to be undertaken
a project or activity without an EIA certificate issued under the EMA (2004). Therefore, this EIA
study complies with the requirements of EMA (2004) as the proposed project falls under
category A project particularly item 7 of the First Schedule of the Environmental Impact
Assessment and Audit (Amendment) Regulation, 2018 – GN 474; demands mandatory EIA on all
projects concerning “Energy” –Transmission of Electricity.
 The Environmental Impact Assessment and Audit Regulations, 2005

These Regulations were made in terms of Section 82 and 230 of the EMA (2004). The
Regulations set procedures for carrying out EIAs and Environmental Audits (EAs). The
Regulations are applicable to all projects contained in Third Schedule of the EMA (2004) and
First Schedule of the Regulations. The Schedules list types of projects requiring EIA as well as
those requiring project brief, project screening criteria, and steps for conducting EIA. The steps
enhanced further in the Environmental Management (Environmental Impact Assessment and
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Audit) (Amendment) Regulation, 2018 – GN 474. The Regulations set out in detail the process to
be followed in conducting an EIA, the form and content of EIAs, the review process, decision-
making processes and appeals and also prescribes the stages and/or the EIA process, which are in
principal managed by NEMC. The proposed development would involve construction of power
transmission line and substation, thus becoming relevant to the first schedules paragraph 7 (a) of
the Regulations. It is thus a legally binding requirement to undertake the EIA of this Project.
Environmental Management (Standards for the Control of Noise and Vibration Pollution)
Regulations, 2015 – G.N.# 32 of 30/1/2015
The main objective of these regulations includes:
(a) To ensure the maintenance of a healthy environment for all people in mainland Tanzania;
the tranquility of their surrounding and their psychological wellbeing by regulating noise
and vibration levels;
(b) Prescribe the maximum permissible noise and vibration levels from a facility or activity;
(c) Provide for the control of noise and vibration and mitigating measures for the reduction
of noise and vibration;
(d) Set baseline parameters on noise and vibration permissible levels based on a number of
practical considerations and acceptable limits;
(e) Enforce minimum noise and vibration limits prescribed by the National Environmental
Standards Committee;
(f) Help developers such as industrialist to keep abreast with environmentally friendly
technologies;
(g) Ensure protection of human health and the environment from various sources of noise
and vibration pollution.
Regulation 7 (1-2) prescribes general prohibitions on noise and state “ no person shall make or
cause to be made any loud, unreasonable, unnecessary or unusual noise that annoys, disturbs,
injures or endangers the comfort, repose health or safety of others and that of the environment”
Several factors are considered before noise is considered beyond acceptable levels. These
include (a) time of the day (b) proximity to residential area (c) proximity of noise control zones,
including hospital and schools (d) whether the noise is recurrent, intermittent or constant (e) the
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level and intensity of the noise (f) whether the noise has been enhanced in levels or range by any
type of electronic or mechanical means (g) whether the noise can be controlled without much
effort or expense to the person making noise.
Regulation 8 refers to prohibition on excessive vibration and states that “no person shall (a)
Make or cause to be made excessive vibration which annoys, disturbs, injure or endanger the
comfort, repose health or safety of others and the environment (b) Cause to be made excessive
vibrations which exceed 0.5 centimeters per second beyond any source, property boundary or 30
meters from any moving source.
Regulation 9 refers to the permissible noise levels and tolerance limits for environment
vibrations. These are noise levels measured during the day (06:00am to 10:00pm) and the night
(10:00pm to 06:00am). Part IV of the First Schedule provides allowable noise levels from
construction sites to buildings other than homes, institutions of higher learning, homes for
disabled persons,, which is 75 dBA during the day and 65 dBA during the night. Part I of the
First Schedule provides the permissible noise levels for general environment; in industrial area as
70 dBA during the day and 60 dBA during the night. Part VI of the First Schedule provides the
maximum noise level from a place of entertainment or establishment in the Noise Control Zone.
According to these regulations, excessive vibration will not be permissible anywhere within 10
meters of residence, hospital, schools, or other premises in which people could reasonably expect
to be free from undue annoyance and nuisance caused by vibration.
The Second Schedule of these regulations provides details regarding tolerance limits for
environmental aspects. For example, tolerance limits for whole body vibration (measured at an
exposure of 8 hours is 1.15 m/s2 while the exposure action value is 0.5m/s2. Limits for hand arm
vibration also measured at 8 hours exposure is 5m/s2 with an exposure action value of 2.5 m/s2.
These limits are for individuals operating machines that emit vibrations. Tolerance limits for
receptors – e.g. through ground vibration at sensitive sites) is 5 mm/s PPU at all times and for
subsonic vibration (air over), it is 120dBL at all times.
These regulations also provide directives on how to carry out monitoring of the impact of noise
and vibration. The proposed development must adhere to the provisions of these regulations.
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Other Environmental Management (Standards) -Related Regulations
 Environmental Management (Air Quality Standards) Regulations, 2007;

 Environmental Management (Soil Quality Standards) Regulations, 2007;
 Environmental Management (Water Quality Standards) Regulations, 2007;
 Environmental Management (Solid Waste Management) Regulations, 2009; and
 The Environmental Management (Hazardous Waste Control and Management)
Regulations 2021
The Project will be required to adhere to various provisions and standards stipulated in the
above-listed regulations in order to comply with Section 141 and Part IX of EMA (2004).
The Electricity Act, 2008

The Electricity Act (URT, 2008) provides for the facilitation and regulation of generation,
transmission, transformation, distribution, supply and use of electric energy and to support to
broader trade in electricity and the planning and regulation of rural electrification and related
matters (URT, 2008).
The Act provides requirements for obtaining licenses for (a) generation (b) transmission (c)
distribution (d) supply, (e) physical and financial trade in electricity and electrical installation
(URT, 2008). Any person intending to conduct any of the activities stipulated in Subsection 1 of
Section 8 of this Act must apply for a license to the Energy and Water Utilization Regulatory
Authority (EWURA).
The Land Act, 2019

The land Act of 2019 provides the legal framework for the implementation of the Land Policy.
Among other things the Act recognizes that
(a) all land in Tanzania is public and vested in the President, as trustee on behalf of all citizens;
(b) existing rights in and recognized long-standing occupation or use of land are clarified and
secured by the law
Moreover the Act facilitate an equitable distribution of and access to land by all citizens and
ensure that land is used productively and that any such use complies with the principles of
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sustainable development. The Acts also defines issues of land acquisition and compensation to
affected people; „to pay full, fair and prompt compensation to any person whose right of
occupancy or recognized long-standing occupation or customary use of land is revoked or
otherwise interfered with to their detriment by the State under this Act or is acquired under the
Land Acquisition Act’. The proposed development will utilize existing way leave, however in
case of additional land requirement the provisions of this Act will be taken into account.
Land Acquisition Act, 1967

The Land Acquisition Act, (Act No. 47 of 1967) provide for compulsory acquisition of land for
public interest and in connection with development aspects. Part II (b) of the Act refers to issues
related to compensation and procedures that have to be followed when land is acquired. These
procedures are also outlined in the Regulation for the Land Act and include issues of fair and
prompt compensation to affected persons. The proposed development will utilize existing way
leave, however in case of additional land requirement the provisions of this Act will be taken
into account in this EIA.
Energy and Water Utilities Regulatory Authority Act, 2003
The Energy and Water Utilities Regulatory Authority (EWURA) (Act # 11 of 2001 and # 8 of
2003 (URT, 2006) establishes a Regulatory Authority in relation to energy and water utilities and
outlines its modus –operandi. The Authority is responsible for regulating energy development
and water utilities in Tanzania and requires relevant developers to obtain permits and
authorization from EWURA for any proposed development. However the proposed development
involves improvement of transmission line by replacing the existing 132kV and by construction
a 220kV transmission line for transmission of existing or generated power, which may not
requires permits. Moreover TANESCO as the main beneficiary has or is already allowed to
establish and run such facilities in Tanzania and prior approval may not be necessary. However,
notification to EWURA and in terms of business aspects will need to be made to EWURA as the
regulator.
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Water Resources Management Act, 2009
The Water Resources Management Act, 2009 (URT, 2009) provides a framework for the
management and utilization of water, taking into account domestic, social, industrial and
environmental needs. The Act provides principles and objectives of Water Resources
Management, which includes among others (a) meeting the basic human needs of present and
future generation (b) promoting equitable access to water (c) promoting the efficient, sustainable
and beneficial use of water in the public interest (e) protecting biodiversity, especially the
aquatic ecosystem (f) providing a system for the management of the resources and
implementation of international obligations.
The Act directs the need to apply and pay all required fees for water utilization permits. It also
directs the adoption of integrated water resource management approaches and the application of
principles such as (a) precautionary principle (b) polluter pays principle (c) the principle of
ecosystem integrity, to mention some.
The proposed development will be located in areas that might result to polluting water bodies
(underground or surface run off) therefore; the provisions of this Act will be taken into account
in order to safeguard this scarce resource.
The Industrial and Consumers Chemicals (Management and Control) Act, 2003
The Industrial and Consumers Chemicals (Management and Control) Act No 3 of 2003 (URT,
2003) provides a legal framework for the management and control of industrial and consumer
chemicals throughout their life cycle.
The law requires that all those persons who intends to produce, import, export, sale, deal in
industrial and consumer chemicals must register with the Registrar of Industrial and Consumer
Chemicals so that their capacities to manage chemicals can be assessed. The law also requires
that facilities used in the production, storage disposal of chemicals and waste must be registered
for the same reasons of ensuring that they are of sound designs and are operated properly.
The proposed development will possibly be dealing with various chemicals that fall under this
Act and the developer will thus be required to register with the Registrar of Industrial Chemicals
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and have the facilities inspected and regularly monitored as provided for under Part III and IV of
the Act. The carrying out of this EIA in part meets the requirement of the Act.
Occupational Health and Safety Act (OSHA Act, 2003)
The Occupational Health and Safety Act (No. 5 of 2003) deals with issues related to health and
safety of workers in industrial areas. Under the Act, the Minister responsible for Labour shall
appoint the Chief Inspector (CI) to perform the functions stipulated in the Act. Specific
provisions of the OSHA Act – namely Section 21, 60, 61, 73-75 and 96 are relevant to the
proposed development and therefore, they must be fully addressed in order to comply with this
legal requirement.
The Act addresses issues of safe equipment, provision of personal protective equipment and a
clean and safe work environment (e.g. provision of regular medical examination, air, drinking
water, sanitary convenience, washing facilities, and accommodation for clothing, first aid
facilities, including safety training etc.).
The proposed development should operate within the requirements of this Act in additional to
those of the Electricity Act and others as outlined in this section.
The HIV and AIDS (Prevention and Control) Act, 2008
This Act provides for prevention, treatment, care, and control of HIV and AIDS; promotion of
public health in relation to HIV and AIDS; appropriate treatment, care and support using
available resources to those people living with or at the risk of HIV and AIDS; and related
matters.
The Act also provides for the requirement of public education and programmes on HIV and
AIDS. Section 8(1) of the Act states that the Ministry of Health and Social Welfare, health
practitioners, workers in the public and private sectors and NGOs are required, for the purpose of
providing HIV and AIDS education to the public, to disseminate information regarding HIV and
AIDS to the public. Furthermore, Section 9 states that every employer, in consultation with the
Ministry of Health and Social Welfare, shall establish and coordinate a workplace programme on
HIV and AIDS for employees under his control and that such programme shall include provision
of gender-responsive HIV and AIDS education.
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The provision of this Act should be followed during the various stages of the project
development in view of its potential to create conditions where HIV/AIDS transmissions are
likely to occur. HIV/AIDS is a serious problem Dar es Salaam and the nation in general;
therefore, measures must be taken to ensure that the disease does not spread as a result of
undertaking development activities such as the planned work.
Public Health Act (2009)

The Public Health Act No.1 of 2009 provides for the promotion, preservation and maintenance
of public health with a view to ensuring the provisions of comprehensive, functional and
sustainable public health services to the general public and to provide for other related matters.
The Act require relevant minister to promote, preserve and maintain a comprehensive, functional
and sustainable public health system in Mainland Tanzania for the purpose of securing
improvement in the health habits and lifestyles of people living in Tanzania.
The law requires relevant authorities among other things to:
(a) Take lawful, necessary and reasonable measures to prevent the occurrence of or deal with any
out-break or prevalence of any infectious or communicable and non-communicable disease;
(b) Make sure an appropriate Environmental Health Impact Assessment Study to be conducted for
all activities as may be provided for under the Environmental Management Act;
(c) Safeguard and promote the public health standards;
(d) Carry out inspections; and
The Public Health Act stipulates clearly that the developer should ensure welfare and health of
workers is maintained at all times and make sure that routine medical examination for workers is
conducted. The proposed transmission line project shall observe the provision of this Act.
The Employment and Labour Relations Act, 2004
This Act makes provision for core labour rights to establish basic employment standards; a
framework for collective bargaining and the prevention and settlement of disputes and related
matters. The developer for this project shall ensure that employment standards as provided for by
the Act are adhered to.
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The Workers Compensation Act, 2008
This Act provides for compensation to workers for injuries suffered in the course of their
employment, which result in disablement or death. This Act needs to be complied with as project
workers will be exposed to various dangerous and hazardous environments during project
implementation.
Other regulatory frameworks that are relevant to the proposed development include; the Town
and Country Planning Ordinance (Cap 378 of 1958) and Amendment of 1961, for planning
purposes. Others are the Grave Removal Act, 1969 and Local Government (Urban Authorities)
Act 1982. The provision of these Acts shall be followed to ensure compliance with the laws.
3.3 TANESCO’S Health, Safety and Environmental (HSE) Guidelines

TANESCO has already prepared and approved the Health, Safety and Environmental guidelines
that every undertaking covering consultants, contractors and sub-contractor has to adhere to
approved HSE guidelines to safe guard environment, community and for safety of worker and
the environment.
Theproposedconstructionofthetransmissionlinesystemwillbeguidedbysimilaroperationprinciplesw
hereenvironmentalandsocialissueswillhavetobe guided by the guidelines. In addition to having its
own guidelines TANESCO are obliged to comply to other safe guard principles andguidelines
issuedbyfinancierofaparticularproject.Inthiscasesafeguardprinciplesand guidelines will be
mandatory.
3.4 The Institutional Framework

The Construction of a new 220kV transmission line from Kinyerezi T-off Point to the new
220/132kV substation at Mabibo is expecting to touch the interest of President Office Regional
Administration and Local Government therefore; it falls under the jurisdictions of The Local
Government Authorities for administrative purposes. The Local Government Authorities include
the City Council, Municipal Council, Ward and „Mtaa‟ which will be responsible for making that
the interest of local communities are considered; these include employment opportunities
associated with implementation of transmission line, protection from environment pollution as
well as resolving conflict relating to the implementation of the proposed development.
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Sections 30 to 40 of the Environmental Management Act, 2004 provides for institutional
arrangement covering Sector Ministries, Regional Secretariat, Township, Ward, Village, Mtaa
and Kitongoji Environmental Management Officers. Thus the District/Municipal environmental
team, ward and mtaa will have to be involved and if these are not in place as required by the law,
efforts must be made to ensure they are created and capacity is provided to them to effectively
perform their duties.
In addition, beside the local institutional/administrative framework, the proposed project also
falls under the Ministry of Energy and Ministry of Lands, Housing, Human Settlement
Development. These ministries, through their different units will have to be involved at various
stages of the project development and in particular their Sector Environmental Coordinators will
have greater roles to play. Other institutions whose administrative decisions will be relevant to
the proposed development include the Ministry of Health, specifically OSHA that will be
responsible for ensuring compliance to occupational health and safety standards as provided
under OSHA.
3.5 Relevant International Conventions and Treaties

3.5.1 International Conventions
Tanzania has signed and ratified several international conventions that this project will have to
adhere to since the Government expressed commitments to enforcing them as part of its own
laws and principles. Some of the conventions include the following:
3.5.2 International Convention on Biological Diversity

Tanzania is signatory to the Convention on Biological Diversity (CBD) since June 1992 and has
taken steps to ensure conservation and use of these resources in judicious ways. Biological
resources in Tanzania are facing a significant threat from unsustainable utilization. While Dar es
Salaam may not be very rich in terms of biodiversity of large mammals and plants, it is
nonetheless equally important to ensure the basic tenets of this Convention are adhered to in the
project development.
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3.5.3 The African Convention on the Conservation of Nature and Natural Resources, 1968
This Convention requires contracting states to adopt measures necessary to ensure conservation,
utilization and development of soil, water, flora and fauna resources in accordance with scientific
principles and with due regard to the best interests of the people. Protected species should be
accorded special protection, including the maintenance of habitats necessary for their survival.
3.6 International Standards and Guidelines

Several international best practices relevant to the proposed development are available to inform
policy choices that would enhance the sustainability of this project. Some of these are practices
that the World Bank, International Finance Corporation (IFC) and JICA are following in their
lending programs.
Many international organizations and financing agencies have aligned their safeguard policies
alongside those of the World Bank and the IFC. Both the World Bank and IFC screening criteria
characterize projects such as the proposed development as Category A projects namely those that
are likely to have adverse impacts which have one or more of the following characteristics that
make the potential impacts “significant”:
(a) Direct pollutant discharges causing degradation of air, water or soil;
(b) Large-scale physical disturbance of the site and/or surroundings;
(c) Extraction, consumption, or conversion of substantial amounts of forest and other natural
resources;
(e) Hazardous materials in more than incidental quantities; and
(f) Involuntary displacement of people and other significant social disturbances.
Tanzania screening criteria also classifies projects bearing almost the same characteristics as
those of the World Bank as Type A projects. Thus, in all these cases (i.e., for the World Bank,
IFC and Tanzania screening procedures) such projects calls for mandatory environmental impact
assessment (EIA Regulations for Tanzania and Performance Standard #1 for IFC). This EIA is in
line with these requirements.
There are Performance Standards and Environmental and Social Framework which replaces the
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Operational Policies from the World Bank and IFC that are relevant to this project, and which
will be addressed in the detailed EIA.
3.7 JICA’S Guidelines for Environmental and Social Considerations

The objectives of the guidelines are to encourage Project proponents to have appropriate
consideration for environmental and social impacts; as well as to ensure that JICA‟s support for
and examination of environmental and social considerations are conducted accordingly. The
guidelines outline JICA‟s responsibilities and procedures, along with its requirements for project
proponents in order to facilitate the achievement of these objectives.
While project proponents bear the ultimate responsibility for the environmental and social
considerations of projects, JICA supports and examines appropriate environmental and social
considerations undertaken by project proponents etc. to avoid or minimize development projects‟
impacts on the environment and local communities, and to prevent the occurrence of
unacceptable adverse impacts.
JICA establishes “the Advisory Committee for Environmental and Social Considerations” as an
independent council composed of external experts with the knowledge necessary to provide
advice regarding support for and examinations of the environmental and social considerations of
cooperation projects.
JICA confirms that projects comply with the laws or standards related to the environment and
local communities in the central and local governments of host countries. JICA also confirms
that projects do not deviate significantly from the World Bank‟s Safeguard Policies, and refers as
a benchmark to the standards of international financial organizations; to internationally
recognized standards, or international standards, treaties, and declarations.
There are some gaps between JICA guideline, World Bank Safeguard Policy and Tanzanian
legislation on environmental and social consideration as below. Measures bridging the gaps are
to be discussed with TANESCO.
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4.0 EXISTING BIOPHYSICAL AND SOCIO-ECONOMIC ENVIRONMENT
4.1. Physical and Biological Environment

4.1.1 Location and topography
Dar es Salaam is characterized by flat topography along the coast of the Indian Ocean in the
south–east and getting slightly undulating and hilly in the hinterland mainly in the north-west
comprising large part of the project area. The city is divided into three zones, namely the upland
zone comprising of hilly areas to the west and north of the city, the middle plateau, and the
lowlands, which include Msimbazi Valley, Jangwani, Mtoni, Africana and Ununio areas (Fig.3).
Topographically the city lies in a flood plain and/or near flood plains and thus flooding is one
characteristic of the city, particularly when there are heavy rains. The beach and shoreline
comprise sand dunes and tidal swamps. Coastal plains composed of limestone extend 10 km to
the west of the city, 2-8 km to the north, and 5-8 km to the south (TSCP, 2014). Inland, alluvial
plains comprise a series of steep-sided U-shaped valleys. The upland plateau comprises the
dissected Pugu Hills (Dongus, 2000) located far southern west of the city. The local
topographical conditions are further summarized in Table 1.
Figure 4: Topographical condition of Dar es Salaam City

Source: TSCP, 2014
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Table 1: Topographical condition and associated characteristics
Level Condition
<5 m Areas in the bay area, river mouths and hinterland along the
Lowland coast. Marsh and swampy areas widely spread, soft soil, thick
and drains poorly
5 – 20 m Flat plains/terrace, extend along the coast and are generally a
Plain/Terrace few kilometers wide. Geographically it belongs to the coastal
plain
20 – 60 m This makes up the dominant of the residential terrain of Dar es
Salaam, and are gently sloped areas, consisting of residual
weathered limestone (murram-earth material); many of these
Terrace/Hill
terraced areas of 500 m to 1000 m are observed around the
banks of dare s Salaam City, and have been known to act as
flood plains
60 – 150 m This zone extend to the Southwest of the study area, the
geographical original of which is raised coral reefs, the
Hill undulating of which is dependent on the degree of weathering.
Part of the project especially stretch from Ubungo substation
to Mabibo substation is located in this zone
> 150 m In the West region of Dar es Salaam, 30 km inland, composed
of limestone associated with sandstone of the older
Mountain geographical area, steep and rigid slopes are formed. Part of
the project area Ubungo and Kimara wards are located in this
zone
Source: TSCP, 2014
4.1.2 Climate
Tanzania generally lies in the tropical savanna belt while Dar es Salaam is located in the wetter
and warmer coastal area. High temperatures almost throughout the year, ranging from 190C to
330C, characterize the climate. The maximum temperature is experienced in October and
November. The annual average temperature is 25.40C. Rainfall is bimodal with short rains falling
from November to December and the long rains from March to June. Maximum average rainfall
ranges between 800 mm to 1200 mm and mostly rains in April. The average maximum and
minimum temperature and rainfall is shown in Figure 4 and 5.
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Figure 5: The average maximum and minimum temperature in Dar es Salaam
http://www.levoyageur.net/weather-city-DAR-ES-SALAAM.html. Accessed on 22nd March
2020
Figure 6: Average Rainfall in Dar es Salaam

http://www.levoyageur.net/weather-city-DAR-ES-SALAAM.html. Accessed on 22nd March
2020
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4.1.3 Geology and Soils
According to the Quarter Degree Sheet 186 of the Geological Survey of Tanganyika (1963) Dar
es Salaam has two major geological units: (i) The underlying substratum of (semi-) consolidated
formations and outcropping rocks that consist of Neogene clay-bound sands to hard sandstone;
and (ii) The superficial mainly loose sediments of the Quaternary System which are more
extensive in the central and southern parts of Dar es Salaam region and consist of less
consolidated terrace sands and sandstones and recent alluvium (Mtoni et al., 2012). The
geological formation of Dar es Salaam is shown in Fig.6.
The soil found in Dar es Salaam City is often clayey and partly sandy, and therefore relatively
unproductive regarding agricultural use (Dongus, 2001). In the river valleys, which are recent
floodplains and subject to flooding, alluvial soils (mainly Eutric Fluvisols and Eutric Gleysols)
are dominant (Muster, 1997). Soil erosion in the urban area occurs primarily at the slopes of river
valleys, where no vegetation is left to hold the soil in place, and is intensified by human activities
such as extraction of construction materials. Along the way leave corridor developing gullies
signifying erosion are clearly seen on slopes from Ubungo Kibo to Kimara Mavurunza.
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Figure 7: Geological formation of Dar es Salaam
Source: Mjemah, 2013.
4.1.4 Biodiversity, flora and fauna

TPDC Gas pipeline and DAWASA water infrastructure. The existing land use in the project area
include cultivation, built-up areas and some riverine vegetation (bush thickets mixed with annual
herbs, grasses and some trees, mainly palms).
Due to the existing land use particularly settlements, much of the natural vegetation has been
converted into none natural secondary vegetation in form of man made gardens, farms and
landscaped areas. Tree species found include Neem trees (Azadirachta indica) and Ashoka trees
(Polyalthia longifolia) and a few African teaks (Tectona grandis). In lower land areas vegatable
farming along the wayleave corridor e.g near Urafiki textile industry and Ubungo maziwa are
common.
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 Fauna
There are limited wildlife resources in Dar es Salaam City due to its high demand for land for
settlements and industrial development. The population particularly of larger animals has been
significantly reduced. The main fauna found in the project area include domestic animals and
some wildlife - predominantly generalists tolerant to human presence like rodents i.e. house rat
(Rattus rattus) and giant cane rat (Thryonomys sp.), snakes (Psammophis spp.), shink (Mabuya
varia), bufo (Amietophrynus gutturalis), other frogs and terrapins (Pelusios sp.). Similarly,
carnivores like the banded mongoose (Mungos mungo) and genets (Genetta sp.) occur in a wide
range of habitats (Hoffmann 2008). Also a diverse assemblage of seabirds is found in the Dar es
Salaam Marine Reserves System (DMRS), including both seasonal migratory and local birds.
The common bird species sighted include the White reef heron (Egretta dimorpha), and (Egretta
garzetta), Whimbrel (Numenius phaeopus) and Sanderling (Calidris alba) (URT, 2005d).
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Figure 8: Vegetation cover of Dar es Salaam:
Source: IRA GIS Lab, 2017
4.1.5 Ambient Air Quality

The air quality parameter (particulate matter,(PM 2.5 and PM10) along the project substation and
its near receptor such as Mabibo market, National Institute of Transport (NIT),Garage, and way
leave area , the defined coordinate of the location were taken and described in the table of result.
Level of particulate matter were determined by using hand held instrument with very response
famously known as handheld laser particle counter model Number 3886 (Kanomax) (Photo 1),
an instrument that measure particle size while the concentration of dust calculated to get exactly
amount of dust inhaled(i.e. particle matter per unit area). Particle matter measurements were
conducted between 09:00 AM and 6:00 PM for two days consecutive and time constant for one
minute.
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Photo 1: Handheld laser Particle Counter model 3887
The average level of dust in every location were collected for two days compared with the
national limit set by Tanzania bureau of standard (TBS) and International standard limit set by
International Finance Cooperation (IFC) are presented in the Table 2. The maximum
concentration of particle matter (PM10) in substation is 10.915 µg/Nm3, while the minimum
concentration is 1.732µg/Nm3. All level of the PM 10 shows the result were below the
recommended national standard and international standard, of Pm 10 which are 150µg/Nm3 and
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50µg/Nm3 respectively. The maximum concentration of particle matter PM 2.5 in the substation is
0.12 µg/Nm3, while the minimum concentration is 0.089 µg/Nm3.the level of result for PM10
and PM2.5 shows significantly below the limits set by TBS and IFC standards. All levels of the
PM 2.5 are below the recommended national standard and international standard, of PM 2.5 are
75µg/Nm3 and PM 2.5 are25µg/Nm3 respectively.
Also the average level of dust in receptor of substation were collected for two days compared
with the national limit set by Tanzania Bureau of Standard (TBS) and international standard limit
set by International Finance cooperation (IFC) are presented in the Table 2. The maximum
concentration of PM10 is 7.253 µg/Nm3, 9.004 µg/Nm3, 3.868 µg/Nm3 and 2.398 µg/Nm3 in the
Mabibo market, National Institute of Transport (NIT), Garage and Way leave respectively while
the maximum concentration of particle matter PM2.5 was 0.104 µg/Nm3,0.089 µg/Nm3,0.103
µg/Nm3 and 0.101 µg/Nm3 at the Mabibo market, National Institute of Transport (NIT), garage
and way leave of substation respectively. All levels of the particles at PM 10 and PM 2.5 are below
the recommended by the national standards and international standards.
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Table 2: Result of Particulate matter (PM10 and PM2.5) measurement at Mabibo Substation and its receptor (Mabibo market,
National Institute of Transport (NIT), Garage and way leave near substation)
LOCATION DATE TIME PARTICLE NATIONAL INTERNATIONAL
MATTER STANDARDS STANDARDS
(µg/Nm3) (µg/Nm3) (µg/m3)
Substation point 1: 37M 0524762 PM 2.50.097 PM 2.5 75 PM2.5 25
UTM 9248138 21-9-2020 11.13A.m
PM 10 10.915 PM 10 150 PM 10 50
Substation point 2: 37M 0524721 PM 2.5 0.084 PM 2.5 75 PM 2.5 25
UTM 9248154 21-9-2020 11.21a.m PM 10 1.732 PM10 150 PM2.5 25
21-9-2020 12.00p.m
UTM 9248116 PM 10 4.689 PM 10 150 PM10 50
Substation point 1: 37M 0524762 PM2.5 0.093 PM 2.5 75 PM 2.5 25
22-9-2020 10.04a.m
UTM 9248138 PM 10 2.392 PM 10 150 PM 2.5 25
Substation point 2: 37M 0524721 PM2.5 0.089 PM 2.5 75 PM 10 50
UTM 9248154 22-9-2020 10.07a.m
PM 10 1.359 PM 10 150 PM 2.5 25
UTM 9248116 22-9-2020 10.43a.m
PM 10 3.05 PM 10 150 PM 10 50
Receptor 1–Mabibo market –point 1 PM 2.5 0.076 PM 2.5 75 PM 2.5 25
37M 0524777 PM 10 6.033 PM10 150 PM 10 50
UTM 9248194 21-9-2020 01.43p.m
Mabibo market point 2: 37m 0524746 PM2.5 0.067 PM 2.5 75 PM2.5 25
UTM 9248233 21-9-2020 01.50p.m PM10 3.868 PM 10 150 PM 10 50
Mabibo market point 1: 37M 0524777 PM2.5 0.09 PM 2.5 75 PM 2.5 25
UTM 9248194 22-9-2020 11.10a.m
PM10 7.253 PM 10 150 PM 10 50
Mabibo market point 2: 37m 0524746 Pm2.5 0.104 Pm 2.5 75 Pm 2.5 25
22-9-2020 11.18 a.m
UTM 9248233 PM10 5.769 PM 10 150 PM 10 50
Receptor 2: NIT –Point 1 37M 0524698 PM2.5 0.087 PM 2.5 75 PM 2.5 25
9248104 21-9-2020 12.43p.m PM10 9.041 PM 10 150 PM10 50
NIT –Point 2: 37M 0524772 PM 2.5 0.089 PM 2.5 75 PM 2.5 25
21-9-2020 12.59p.m
UTM 9248092 PM10 6.229 PM 10 150 PM 10 50
NIT –Point 1: 37M 0524698 PM2.5 0.062 PM 2.5 75 PM 2.5 25
9248104 22-9-2020 11.35p.m
PM10 4.375 PM 10 150 PM 10 50
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NIT –Point 2: 37M 0524698 PM2.5 0.065 PM 2.5 75 PM 2.5 25
22-9-2020 11.48p.m
UTM 9248104 PM10 6.644 PM 10 150 PM 10 50
Receptor 3 PM2.5 0.103 PM 2.5 75 PM2.5 25
Garage area point 1: 37M 0524891 21-9-2020 12.16p.m PM10 1.710 PM 10 150 PM 10 50
UTM 9248086
Garage area point 2: 37 M0524977 PM2.5 0.062 PM 2.5 75 PM2.5 25µg/m3
21-9-2020 12.27p.m
UTM 9248057 PM10 0.515 PM 10 150 PM 10 50µg/m3
Garage area point 1: 37M 0524891 PM2.5 0.076 PM 2.5 75 PM 2.5 25
22-9-2020 10.56a.m
UTM 9248086 PM10 6.033 PM 10 150 PM 10 50
Garage point 2 : 37 M 0524977 Pm2.5 0.067 Pm 2.5 75 Pm 2.5 25
9248057 22-9-2020 11.00 a.m PM10 3.868 PM 10 150 PM 10 50
Way leave area point 1: 37M 0524619 PM 2.5 0.1 Pm 2.5 75 Pm 2.5 25
21-9-2020 11.27a.m
UTM 9248222 PM10 2.026 PM 10 150 PM 10 50
Way leave point area point 2 PM2.5 0.0379 PM 2.5 75 PM 2.5 25
37M 0524417 21-9-2020 11.49p.m PM10 1.132 PM10 150 PM 10 50
UTM 9248269
Way leave area point 1 PM2.5 0.103 PM2.5 75µg/Nm3 PM 2.5 25µg/m3
37M 0524619 22-9-2020 10.21a.m
PM10 2.398 PM10 150 µg/Nm3 PM 10 50µg/m3
UTM 9248222
Way leave area point 2: 37M 0524417 PM2.5 0.107 PM2.5 75µg/Nm3 PM 2.5 25µg/m3
UTM 9248269 22-9-2020 10.28a.m
PM10 0.611 PM10 150 µg/Nm3 PM10 50µg/m3
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Noise level
Noise levels were measured using digital sound level CASELLA CEL -63x sound level meter
(Photo 2). The device meter scale was set to the „A‟ weight measurement scale, which enables
the device to respond in the same manner as human ear. The device was held approximately
1.5m above the ground. A weighting with an automatic measuring range of 30 to 130 dB. The
measurement where taken for two days consecutive from 09.00 AM to 6.00 PM
Noise levels within the proposed project were measured at the substation (three point at the
substation), and at receptor of the substation (National Institute of Transport, Mabibo Market,
Garage area and Way leave), also in the receptor two point in the different location was taken.
The average collected noise levels were compared with Tanzania National Standard (TBS) and
International Finance Cooperation (IFC) standard limits as shown in Table 3. Maximum noise
level at the substation area is 81.6 dB and minimum noise level is 70.3 dB, this result it
significantly below the recommended limits standard set by Tanzania National Standard (TBS)
while it‟s above the recommended international standard set by International Finance
Cooperation (IFC).
The average collected measurement at the receptor of the substation (National Institute of
Transport (NIT), Market area, garage and way leave) were compared with the national standard
and international standard .the maximum noise level was 84.6Db,86.4,88 and 78.05,while the
minimum noise level was 77.8,73.3,73.05 and 68.5 in the NIT, garage, Market area and way
leave respectively .all of result was below the recommended national standard of Tanzania set
by Tanzania bureau of standard (TBS) BUT it‟s above the recommended international standard
set by International Finance Cooperation (IFC). these is because of human activities which are
carried out in area selling and buying the commodities, high voice of radio and movement of
car and truck in the garage cause increases of noise level.
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Photo 2: Sound level CASELLA CEL -63x sound level meter
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Table 3: Result of Noise level Measurement at Mabibo substation and its receptor points (National Institute of
Transport (NIT), Garage, Mabibo market and way leave)
Location Date Time Noise (dB) National International
Standard of Standard of Noise
Noise (dB) (dB)
Substation point 1: 37M 0524762 21-9-2020 11.13.a.m 70.3 85 70
UTM 9248138
Substation Point 2: 37M 0524721 21-9-2020 11.21a.m 76.7 85 70
UTM 9248154
Substation point 3: 37M 0524822 21-9-2020 12.00p.m 81.6 85 70
UTM 9248116
Substation point 1: 37M 0524762 22-9-2020 10.04a.m 76.3 85 70
UTM 9248138
UTM 9248154
UTM 9248116
Receptor 1–Mabibo market –point 1: 85 70
37M 0524777 21-9-2020 01.43p.m 88
UTM 9248194
Mabibo market point 2: 21-9-2020 01.50p.m 83.1 85 70
37m 0524746
UTM 9248233
Mabibo market point 1 22-9-2020 11.10a.m 85.3 85 70
37M 0524777
UTM 9248194
Mabibo market point 2 22-9-2020 11.18 a.m 73.05 85 70
37m 0524746
UTM 9248233
Receptor 2 21-9-2020 12.43p.m 77.8 85 70
NIT –Point 1: 37M 0524698
9248104
NIT –Point 2: 37M 0524772 21-9-2020 12.59p.m 79.9 85 70
UTM 9248092
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NIT –Point 1: 37M 0524698 22-9-2020 11.35p.m 78.65 85 70
9248104
NIT –Point 2: 37M 0524698 22-9-2020 11.48p.m 84.6 85 70
UTM 9248104
21-9-2020 12.16p.m 77.8 85 70
Receptor 3: Garage area point 1
37M 0524891
UTM 9248086
Garage area point 2: 37 M0524977 21-9-2020 12.27p.m 73.3 85 70
UTM 9248057
Garage area point 1: 37M 0524891 22-9-2020 10.56a.m 86.4 85 70
UTM 9248086
Garage point 2: 37 M 0524977 22-9-2020 11.00 a.m 81.5 85 70
9248057
Way leave area point 1 21-9-2020 11.27a.m 68.5 85 70
37M 0524619
UTM 9248222
Way leave point area point 2 21-9-2020 11.49p.m 72.05 85 70
37M 0524417
UTM 9248269
37M 0524619
UTM 9248222
37M 0524417
UTM 9248269
Source: Site measurement, EARG, 2020
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Vibration Measurement
Vibration levels were measured using digital Vibration Meter PCE-VT 1100 (Photo 3). The
vibration meter is hand-held measuring device for the individual assessment of vibrations on
machines and systems. The device meter measure ground vibration. Vibration measurement were
conducted between 09:00 AM and 6:00 PM for two days consecutive and time constant for 10
seconds.
Photo 3: PCE vibration measurement instrument
Vibration levels within the proposed project were measured at the substation (three point at the
substation), and at receptor of the substation (National Institute of Transport, Mabibo Market,
Garage area and Way leave), also in the receptor two point in the different location was taken.
The average collected vibration levels were compared with national standard set by Tanzania
Bureau of Standard (TBS) as shown in Table 4. Maximum vibration level at the substation at the
receptors was 1.0 m/s2 and minimum noise level was 1.0 m/s2, this result it significantly below
the recommended Tanzania standard set by Tanzania bureau of standard (TBS) of 1.15m/.
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Table 4: Result of Vibration measurement at substation and it receptor (NIT, Mabibo
market, Garage, way leave)
Location Date Time Vibration National Standards
(M/S2) (TBS) (M/S2)
Substation point 1 21-9-2020 11.13A.m 1.0 1.15
37M 0524762
UTM 9248138
Substation Point 2 21-9-2020 11.21a.m 1.0 1.15
37M 0524721
UTM 9248154
Substation point 3 21-9-2020 12.00p.m 1.0 1.15
37M 0524822
UTM 9248116
Substation point 1 22-9-2020 10.04a.m 1.0 1.15
37M 0524762
UTM 9248138
37M 0524721
UTM 9248154
37M 0524822
UTM 9248116
Receptor 1–Mabibo market –
point 1 21-9-2020 01.43p.m 1.0 1.15
37M 0524777
UTM 9248194
Mabibo market point 2 21-9-2020 01.50p.m
37m 0524746 1.0 1.15
UTM 9248233
Mabibo market point 1 22-9-2020 11.10a.m
37M 0524777 1.0 1.15
UTM 9248194
Mabibo market point 2 22-9-2020 11.18 a.m
37m 0524746 1.0 1.15
UTM 9248233
Receptor 2 21-9-2020 12.43p.m
NIT –Point 1 1.0 1.15
37M 0524698
9248104
NIT –Point 2 21-9-2020 12.59p.m 1.0
37M 0524772 1.15
UTM 9248092
NIT –Point 1 22-9-2020 11.35p.m
37M 0524698 1.0 1.15
9248104
NIT –Point 2 22-9-2020 11.48p.m 1.0 1.15
37M 0524698
UTM 9248104
Receptor 3 21-9-2020 12.16p.m 1.0 1.15
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Garage area point 1
37M 0524891
UTM 9248086
Garage area point 2 21-9-2020 12.27p.m 1.0 1.15
37 M0524977
UTM 9248057
Garage area point 1 22-9-2020 10.56a.m 1.0 1.15
37M 0524891
UTM 9248086
Garage point 2 22-9-2020 11.00 a.m 1.0 1.15
37 M 0524977
9248057
Way leave area point 1 21-9-2020 11.27a.m 1.0 1.15
37M 0524619
UTM 9248222
Way leave point area point 2 21-9-2020 11.49p.m 1.0 1.15
37M 0524417
UTM 9248269
37M 0524619
UTM 9248222
37M 0524417
UTM 9248269
(Source: Site measurement, EARG, 2020)
4.1.6 Water quality

In Dar es Salaam, domestic waste is the most serious source of pollution. The waste generated by
15% of the city residents who are connected to the sewer system is discharged into the sea
untreated. As a result, coastal waters, especially in the vicinity of the Dar es Salaam harbor, arc
heavily polluted. Discharge of untreated sewage in Dar es Salaam has resulted in high faecal and
total coliform levels in coastal waters. The situation is made worse by a broken sewer pipe,
which discharges untreated sewage on sandy-mud flats near the harbor and is said to threaten
invertebrates and fish. It has also been reported that chlorinated organic compounds are present
at alarming levels in the harbor areas as are heavy metals, e.g. Pb, Zn and Cu (2). For many
years, the harbor area suffered from oil pollution from the refinery at Kigamboni, and industrial
wastes from Keko, Chang'ombe, Kurasini, Mtoni, and Temeke. These discharge heavy metal,
pesticide, organic, and paint wastes into the nearby area (35). However, the refinery has now
ceased operation. Msimbazi River and Creek are also among the most polluted waterbodies in
Dar es Salaam. The river and creek receive large quantities of untreated domestic wastes from
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the city's residents in addition to industrial wastes from various industries. The river and creek
receive such pollutants as dyes and paint wastes and strong alkalis (from textile factories), oil,
and tars, (from vehicle depots and power stations), organic wastes (from breweries and meat
plants). Other industrial and agricultural chemicals that pollute the river and creek include heavy
metals, PCBs, cyanides, pesticides, and detergents. Table 5 and 6 give pollution loads in surface
and ground water sources respectively in Dar es Salaam.
Table 5: Pollution load to surface water resources (kg day') in Dar es Salaam.
Type Industrial Pit latrines Septic tanks Without Total
effluent facilities
BOD 28330 15282 3275 9897 56784
COD 29904 16131 3457 10447 49776
Suspended solids 47216 25 470 5458 16495 78429
Dissolved solids 83940 45280 9830 29325 138923
Total N 4145 2236 479 1448 6859
Total P 787 425 91 275 1302
Source: Sustainable Development Programme (1992)
Table 6: Pollution loads to groundwater sources (kg day-1) in Dar es Salaam.

Type No Pit Septic Sewer Losses Total (tons)
facility latrines tanks domestic industry
BOD 1100 15282 7641 1221 1899 27

COD 1161 16131 8068 1289 11994 29
Suspended solids 1833 6116 3832 2035 3148 18
Dissolved solids 3258 97 857 61128 3618 5596 196
Total N 120 4829 3018 3618 5596 10
Total P 23 915 572 34 52 2
Source: Sustainable Development Programme (1992)
The safety of water from shallow wells is questionable. Thomas, (2011) found out that
groundwater (deep and shallow wells) at Ukonga Dar es Salaam, has been contaminated with
bacteria, chloride, nitrate and fluoride. These sources may be contaminated due to infiltration of
sewage from pit latrines or septic tanks and/or wash-down of contaminated soil by surface run
off. Another source of contamination can be the soil because it can consists of a mixture of
weathered minerals and varying amounts of organic matter (Saria, 2011a). Also, soils can be
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contaminated as a result of spills or direct contact with contaminated waste streams such as
airborne emissions, process solid wastes, sludges, or leachate from waste materials. The
solubility of metals in soil is influenced by the chemistry of the soil and groundwater (Evans,
1989). Lifting device can push down soils and rubbish during water collection and spilled water
running back into the sources again leads to pollution. The use of contaminated drinking water
constitutes a serious health risk and can result in outbreaks of water borne diseases like
dysentery, cholera and typhoid (Madavine, 2008).
4.1.7 Water Resources

Dar es Salaam lies within an increasingly water scarce catchment. Figure 7 shows the vegetation
and main surface water drainage areas in the city. They include Ng‟ombe (Sinza) River in
Kinondoni; Kizinga River, Yombo River and Gerezani Creek in Temeke; and Msimbazi River
and Yombo river in Ilala. Almost all these rivers and creeks are largely seasonal which have not
been gauged, tending to flood during the wet season and dry up in the dry season. None of these
rivers is gauged therefore information on hydrological flow is absent. There are small streams
and one big river (Mbezi River) crossing the project area in several locations. Since the project in
question is a transmission line the issues related to surface water body /rivers is largely pollution
resulting from sediment load emanating from construction works.
4.2 Socio-economic information
4.2.1 Administrative Structure and Boundaries

Dar es Salaam city is located within the Dar es Salaam region, one of thirty regions in Tanzania.
The city is subdivided into five municipalities of Ilala, Kinondoni, Temeke, Ubungo and
Kigamboni, and 102 wards as shown in Table 7 and Figure 10.
Table 7: Number of Divisions, Wards, Mtaa, Villages and Hamlets in the Three Municipalities of
Dar es Salaam
Municipality Division Wards Streets
Ilala 3 36 159
Temeke 2 23 142
Kinondoni 2 20 106
Ubungo 2 14 91
Kigamboni 1 9 67
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Total 10 102 565
Source: Kinondoni, Ilala, Temeke, Ubungo and Kigamboni Municipal Council Profiles 2017
Figure 9: Administrative Boundary of Dar es Salaam City

Dar es Salaam is administered through the regional and city council bodies. Firstly, Dar es
Salaam‟s regional administration is headed by a Regional Commissioner. In Tanzania, the region
is in charge of overseeing the city. Secondly, Dar es Salaam has a City Council administration,
officially headed by Mayor. The Mayor remains more of a political title working through elected
constituencies. The Councilors and Mayors serve for five-year terms, whereas Deputy Mayors
are elected every year from among the councilors. The incumbent can be re-elected many times,
depending on the will of the councilors. There are eight electoral constituencies in Dar es
Salaam, each with an elected Member of Parliament. The Dar-es-Salaam City Council and five
municipalities operate in the same jurisdictional areas, but each of the Municipal Councils has
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been given a jurisdiction area demarcated with an administrative structure governing the
municipality. The functions of the City Council and the five Municipal Councils (MCs) are
provided for in Section 7A of Act No. 8 of 1982. Table 2.5 showcases the political party
affiliations across Dar es Salaam‟s municipal councils and constituencies.
4.2.2 Demographic Characteristics
Based on Tanzania population and Housing census of 2012, Ubungo Municipal Council had a
population of 845,368. Among the population, 409,149 were males and 436,219 were females.
Based on the population projection for 2019, Ubungo municipal council had a population of
1,403,311, among them, 679,185 were males and 724,126 were females. The municipal
population annual growth rate stood at 5.0 percent which is slightly lower than the regional
population annual growth rates of 5.6 percent and significantly higher than the national
population annual growth which stood at 2.4 percent. The council has an average household size
of 4.0 similar to the regional average household size. The high annual growth rate for the
Ubungo municipality is likely to be associated with high rate of migration as well as natural
population increase. The population distribution in project-affected wards varies from one ward
to another as shown in Table 8.
Table 8: Population distribution in Ubungo Municipality
S/N WARD POPULATION BY SEX 2012 POPULATION BY SEX 2017
MALE FE TOTAL MALE FE TOTAL
1 Mburahati 16,784 17,339 34,123 21,421 22,129 43,550
2 Sinza 18,892 21,654 40,546 24,112 27,637 51,749
3 Makuburi 28,021 29,387 57,408 35,763 37,506 73,269
4 Mabibo 41,824 43,911 85,735 53,379 56,043 109,422
5 Manzese 34,495 36,012 70,507 44,025 45,961 89,986
6 Ubungo 27,221 28,794 56,015 34,742 36,749 71,491
7 Makurumla 30,933 32,419 63,352 39,479 41,376 80,855
8 Mbezi 35,637 37,777 73,414 45,483 48,214 93,697
9 Msigani 26,479 28,632 55,111 33,795 36,542 70,337
10 Kimara 36,654 39,923 76,577 46,781 50,953 97,734
11 Saranga 49,263 54,864 104,127 62,873 70,022 132,895
12 Goba 21,066 21,603 42,669 26,886 27,572 54,458
13 Kibamba 13,840 15,045 28,885 17,664 19,202 36,866
14 Kwembe 28,040 28,859 56,899 35,787 36,832 72,619
TOTAL 409,149 436,219 845,368 522,190 556,738 1,078,928
Source: URT, 2012. Tanzania Population and Housing Census, National Bureau of Statistics
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Population densities in the Municipality vary from one settlement to settlement. High populated
areas are found in unplanned settlements such as the Manzese and Mabibo wards with a
population density of 38,465/km²and 21,258/km². Low population densities are in peripheral
localities such as the Kibamba and Msigani wards with a population density of 1,468/km² and
3,765/km² respectively. Other affected wards are moderately populated, for instance, Ubungo
ward has a population density of 5,604/km², Kimara has 5,664/km² and Makuburi has a
population density of 7,527/km². The impact of higher population densities always is associated
with widespread of poverty and other serious environmental and social problems such as crimes,
poor hygiene, leading to unsustainable development.
4.2.3 Social services
4.2.2.1 Education system in Tanzania
The Tanzania education system is based around a 2-7-4-2-3+ structure. In other words: 2 years of
pre-primary school, 7 years of primary school, 4 years of ordinary secondary school (ordinary
level), 2 years of advanced secondary school (advanced level) and at least 3 years of higher
education. The Ministry of Education, Science and Technology has general responsibility for the
education system. Amongst other aspects, the Ministry is charged with quality assurance,
research, monitoring and evaluation of primary and secondary education. In addition to the
Ministry, various other parties are involved in the governance and monitoring of education
services, such as the Prime Minister's Office, the Regional Administration and Local
Government, various NGOs and individuals coordinated by the central government.
The Ministry is also responsible for higher education at universities. Public universities are semi-
autonomous and have the freedom to determine – amongst other aspects – their own curricula.
They are also authorized to award academic degrees. Although the vice-Chancellor of the
university is appointed by the institution itself, the Chancellor is appointed by the President of
Tanzania. All universities, both public and private, operate under the supervision of the Tanzania
Commission for Universities (TCU). The National Council for Technical Education (NACTE) is
responsible for all technical and vocationally oriented secondary and higher education offered at
non-university institutions. Compulsory education in Tanzania starts at the age of 7 and ends at
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age 14. The language of instruction for primary education is Kiswahili. However, the language
of instruction for both secondary and higher education is English.
4.2.2.2 Education in Ubungo municipality

Ubungo Municipal Council has 113 Pre -Primary Schools out of which 60 belongs to
Government and 53 owned by private sector. Also District Council has 118 Primary schools,
whereby 64 are owned by Government and 54 primary Schools owned by Private Sector. All 64
Primary Schools has a total number of 76,346 pupils from STD I to STD VII and 2,434 teachers.
The present school infrastructures include 833 classrooms, 17,121 desks, 710 pit latrines, 8
libraries and 112 staff. In terms of secondary schols, the council has a total number of 66
secondary schools, out of which 27 are registered community secondary schools and 39 are
privately owned. In addition to that, 11 out of 39 private Secondary Schools are at Advanced
Level. Nevertheless, the Council is trying to work on the necessary infrastructure for A-Level at
Kiluvya, and Y. R. Makamba for increasing the number Advanced level schools All 27
Community Secondary Schools had a total number of 22,930 students from form I - IV and 955
teachers. Private schools have the total number 10,849 students from I-VI. Among the public
secondary schools five are located in within the project wards.
4.2.2.3 Health services and facilities

The Council currently has a total of 68 health facilities of which 17 are government owned,
while the remaining 51 are owned by Private Organizations. Sinza hospital is the only hospital
owned by the government providing health services within the Municipal. This hospital is called
a district hospital, which is providing services for 1,000 to 1,500 in and out patients per day. All
the health facilities provide cure, preventions of communicable and non-communicable Diseases.
Table 9, shows a list of health facilities available in Ubungo Municipal Council.
Table 9: Health facilities in Ubungo Municipality
Health Facility Level Government Private Total
Hospital 1 5 6
Health Centres 3 7 10
Dispensaries 15 74 89
Clinics 11
Total 17 51 116
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Source: Ubungo Municipal Council Strategic Plan (2018/2019-2022/2023)
Water borne diseases are the leading cause of mortality, these are Typhoid and Cholera. The
main challenge is low coverage of safe and clean water system, lack of modern toilets and
community health illiteracy.
4.2.2.4 HIV/AIDS Situation
Despite the government efforts to control the transmission of HIV at different levels in the area,
the disease still features among the top ten diseases. Based on TACAIDS report of 2017 on
people living with HIV/AIDS, the Ubungo municipality reported to a significant number of
people living with HIV/AIDS as shown in Table 10.
Table 10: People Living with HIV in Dar es Salaam Municipalities
Municipal Male Female Total
Temeke dc 5,250 7,958 13,208
Ilala 4,028 6,940 10,968
Kinondoni 5,951 7,798 13,749
Ubungo 3,558 4,862 8,420
Kigamboni 3,210 5,260 8,470
Total 21,997 32,818 54,815
Source: The United Republic of Tanzania: Prime Minister’s Office, Tanzania Commission for Aids.
National HIV and AIDS Response Report for 2017. Tanzania Mainland, June 2017
4.2.2.5 Gender issues and people with vulnerability

Gender differences are a significant attribute in agriculture, from access, control and ownership
of land to marketing of raw and processed produce. In Tanzania, despite constitutional
proclamations of gender equality and many laws that promote equal opportunities for both men
and women, still related issues has remained to critical problem in the communities.
Based on this fact the Ubungo Municipal Council through the department of health is responsible
for gender issues and providing support to vulnerable people. The Social Welfare Unit is
responsible for offering services to vulnerable populations in communities or in institutions
through provision of Child and Women protection services and supervision of other welfare
services. The Social Welfare Unit is dealing with Maintenance services to ensure welfare of
vulnerable groups is maintained. Table 11, shows the number of vulnerable people and Gender
related issues in Ubungo municipality.
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Table 11: Elders, People with Disabilities and Elders with medical exemption cards and
vulnerable group beneficiaries
Vulnerable group beneficiaries Estimated Identified Percentage
number of beneficiaries (%)
beneficiaries
Elders 15,987 7,299 56.1
People With Disabilities (PWDs) 700 673 96.1
Elders who provided medical 7299 8971 123
exemption cards
Total 16,687 7,972
The number of GBV&VAC cases attended (2016/17- 2017/18)
Type of case Children Adult Total
GBV & VAC cases 61 557 618
Children in conflict with the Law 09 - 09
(CICL)
Total 70 557 627
Source: Ubungo Municipal Council Strategic Plan (2018/2019-2022/2023)
4.2.2.6 Road Network

Ubungo district Council has a total of 386.3 km of roads which are maintained by the Council
out of which 23.0 km are tarmac roads, 245.25 km are gravel roads and 118.05 km are earth
roads and 78 bridges/box culverts. The status condition of the entire network is as shown on
Table 12.
Table 12: Road network in Ubungo Municipal Council
Paved Gravel Earth
Good Fair Poor Good Fair Poor Good Fair Poor
19.25 0.0 3.75 82.85 107.45 54.95 10.9 46.3 60.85
23.0 245.25 118.05
Total Length 386.3 Km
Source: Ubungo Socio-economic profile, 2016
Ubungo Municipal Council is continuing to conduct rehabilitation, maintenance, upgrading and
construction of roads and bridges/box culverts to improve its roads network within district
specifically by focusing routes which are decongesting traffic from main roads and routes
accessing to services areas by using funds from Road Funds Board, own source and from other
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sources. Despite the efforts to rehabilitate the road infrastructure, it was observed that most of
the access road to the existing transmission line, especially during rainy season are in poor
condition which makes difficult to access the transmission.
4.2.2.5 Water and Sanitation

The main source of water for Ubungo residents is from Lower and Upper Ruvu, which managed
by Dar-es-salaam Water and Sewerage Authority (DAWASA). The water from DAWASA
systems contributes 68% of water being consumed daily and the rest is contributed by shallow
and deep wells, which owned by both private and community. The estimated population of
Ubungo Municipality is 845,368 out of that only 68% have direct access to clean and safe water
while the rest 32% have no smooth access. Under WSDP - RWSSP the Council has drill 17
boreholes in which 4 borehole are dry among 17. Water supply system for two bore of Mpiji
Magohe and Kibwegere has been under construction.
4.2.2.6 Solid Waste Management in Dar es Salaam and Ubungo Municipality
Waste management is a growing problem in the whole country. Increasing urbanization, rural to
urban migration, and rapid development associated with population growth have resulted in
increased solid and liquid waste generation mainly by industrial and domestic activities. There is
limited data available on waste management for the country. Table 13 shows the generation of
waste by source in DSM. From the table it can be seen that most of the waste are generated from
manufacturing followed by households.
Table 13: Generation of Waste by Source in DSM from 2012-2014

Source Unit in Tones
2012 2013 2014
Agriculture, forestry and fishing 111,164.40 138,681.75 125,592.12
Mining and quarrying 71,407.69 57,104.25 80,675.49
Manufacturing 540,382.50 432,360.75 610,517.25
Energy 63,687.94 89,735.25 71,953.82
Construction 57,126.15 73,419.75 64,540.40
Other activities 185,274.00 244,732.50 209,320.20
Households 524,943.00 595,515.75 593,073.90
Source: Dar es Salaam City Council, 2015
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Ubungo Municipality is estimated to generate about 828 tonnes of waste per day, (which gives
302,001 tonnes per year). Waste generation sources in the Municipality with respective tonnes
generated in brackets are. The source and amount of wastes generated in Ubungo municipal
council is shown in Table 14.
Table 14: Generation of Waste by Source in Ubungo Municipal Council in 2017
Source Unit in Tones
Households 661
Institutional waste 6.5
Commercial waste 12.4
Market waste 16.5
Informal sector waste 131.6
Total 828
Source: Socio-economic Profile - Ubungo Municipal Council, 2017
Solid waste collection in Ubungo Municipality is carried out by both the Municipal, some private
companies, community based organizations and informal sectors. Apart from collection
activities, the Municipality is also responsible for supervising the franchisees involved in Solid
Waste Management. Various service providers are engaging in solid waste management. There
are 19 Mitaa with contactors, 20 Mitaa with community groups, 36 mitaa served by Mtaa
Government 36. There are 19 Mitaa without service providers. In regard to waste transportation,
both the Municipal council and private sectors do transportation of solid waste. The Municipal
council has four trucks of which only one is functioning for transportation of solid waste from
different areas of the Municipal to the current dump site. The site is situated more than 35 Km
from the Centre of Ubungo municipality, this makes the round trip to cover about 80Km. Other
trucks are owned by the private sectors including contractors, Community groups and NGO‟s.
The department is faced with various challenges including: lack of equipment to quantify levels
of pollution; insufficient waste management facilities; long distance to the dump site;
inappropriate negative community perception toward waste management practices; pollution
done during night; petty trade activities contributing to environmental pollution; and sand mining
activities in rivers.
4.2.2.6 Energy
Dar es Salaam city dwellers including Ubungo municipality depend on different sources of
energy such as electricity, charcoal, firewood and gas, also stand-by generators are used during
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power outages. The main source of power for lighting, business and industry is electricity, which
is generated, transmitted and supplied by a sole power utility, Tanzania Electric Supply
Company Limited (TANESCO). Residents commonly use electricity, charcoal, gas for cooking
and lighting. A large number of service outlets use charcoal and gas for cooking, some use
kerosene stoves.
4.2.4 Economic Activities
4.2.4.1 Land use in Dar es Salaam
With its highly urbanized spaces, currently, the major land uses in Dar es Salaam include the
residents of both formal and informal; institutional, industrial, agriculture, hazardous land and
open spaces. Literature shows that up to 1963, most of the urban land uses in Dar es Salaam were
planned, except a few informally developed settlements of Keko, Buguruni, Ubungo, and
Temeke. Spatially the extent of the land use development was confined to within a radius of 6
kms. In the post-independence period, however, rapid horizontal expansion of the city occurred,
predominantly along its radial road networks fueled by rapid population influx and individual‟s
development of houses by the city residents. By 1978, the land use coverage of the city had
extended to 14 kms along Pugu road extending as far as Ukonga, about 12km along Morogoro
and Bagamoyo roads thereby engulfing the suburbs of Kimara and Kawe respectively.
The southern extension along Kilwa road was rather limited to about six kms extending to the
present settlements of Temeke and Chang‟ombe. Although pockets of land remained
undeveloped between these arterial roads, the extent of the builtup areas of the city was generally
limited to within the 12-kilometer radius. By 1992, the extent of the land use coverage
predominantly remained within the 12-kilometer radius but with extended development along
Bagamoyo road including settlements of Mbezi and Tegeta up to 16 km and ten km along Kilwa
road including settlements of Mbagala and Mtoni. In the year 2012, the extent of the land use
coverage shows consolidation of settlements on the formerly sparsely developed areas between
the major roads and further extended growth along these roads. The northern extension along
Bagamoyo road had reached about 32kms, about 30kms westwards along Morogoro road, about
25kms south-westwards along Nyerere road and 20kms southwards along Kilwa road. In
essence, one cannot tell the boundary of the city while riding/driving along the major roads
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because of the continuous development therein. The land use in the project area is also
dominated by settlements with small businesses such as shops and restaurants. Since the project
will be implemented using the existing way leave, no significant impacts are expected to the
settlements and the businesses.
4.2.4.2 Urban Agriculture
About 1,850.(Ha) of land in the Municipality are potential for agricultural practices especially
crop cultivation (Though the figure might differ due to rapid expansion of urban related
activities). Land estimated under use for both cash crops and food crops is 174.94 (Ha);
approximately 9.45% of land is potential for agriculture. Farmers engage in small and large
farming, and they mostly till their land using hand equipments . Few of them use tractors and
traditional upgraded technology. Agriculture provides the Municipality with 1,007.54tones of
food crops, which is only 0.65% of the total annual food requirement of the population. Table 15
and Photo 1, shows the various types of crops grown in Ubungo municipality, particularly along
the proposed transmission line.
Table 15: Estimated quantity of vegetable crops produced in kilogram (kg)

Type of vegetable 2012 2013 2014 2015 2016 Total
Amaranth 5,033 5,776 6,111 6,500 7,512 30,932
Pumpkin 7,800 9,550 9,998 11,020 11,579 49,947
Chinese Cabbage 4,540 5,750 5,991 7,975 6,352 30,608
Spinach 579 631 673 751 796 3,430
Pepper 1,151 1,250 1,375 1,750 1,811 7,337
Tomatoes 6,720 7,100 7,550 7,600 7,965 36,935
Salad 2,450 2,785 3,050 3,405 3,784 15,474
Okra 490 575 750 870 955 3,640
Legumes leaves 14,050 16,800 17,505 18,500 18,955 85,810
Total 42,813 50,217 53,003 58,371 59,709 264,113
Source: Bishoge, O. K. et al, 2018
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Photo 4: Banana crops along the transmission line at Kimara ward in Ubungo Municipal
Source: EARG Study Team, 2020
4.2.4.2 Industries
Industrialization on small and large scales is a common feature in the Municipality. Small-scale
industry concentrates in domestic production sectors scattered throughout the Municipal and
allocated mostly in residential areas. Individuals and groups of Tanzanians are engaged in
production of a wide range of goods in this sector. Large-scale industries are located in the
designated industrial areas of Ubungo, Mabibo and Makuburi.
4.2.4.3 Other Land Uses
Apart from the mentioned economic activities, the Ubungo Municipality is dominated by human
settlements of which some located within the wayleave of the proposed power transmission line
at Ubungo ward, institutional land, commercial land, land for transport and communication.
Urban agriculture is also taking place in some areas including along the power transmission line.
There are also small businesses, garage and grave yards as shown in the following photo 2, 3 and
4 with their coordinates in Table 16.
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Photo 5: Some of the permanent and temporal structures to be affected at Ubungo ward
Photo 6: Garage in Ubungo Kisiwani and Grave yard in Mavurunza located within the way leave of
the Power Transmission line in Ubungo and Kimara wards.
Table 16: Location of properties along the proposed transmission line
S/N Easting Northing Altitude Remarks
1 0517895 9247798 125 Graveyards at Mavurunza in Kimara ward
8 0522765 9248896 56 Potential house for relocation at Kibo in Ubungo ward
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4.3 Socioeconomic Information and Profile of Project Affected Persons (PAPs)
4.3.1 Age and sex
The household survey revealed that the significant number of the respondents were female,
accounting for 53.8% (8) of the PAPs whilst the remaining 46.2% were male. The age
distribution among the PAPs showed that 23.0% fall within the age group of 24 – 44 years. A
relative significant number of the PAPs were in the age group of between 45 – 54 years, 15.4
were in the age group of 55 – 64 as well as those who were above 65 years of age. Figure 11
show the age group distribution among the PAPs along the project area.
46.2
50
45
40
Percentage
35
30 23
25
15.4 15.4
20
15
10
5
0
24 – 44 45 - 54 55 - 64 Above 65
Age Group
Figure 10: Percent of age-group distribution among the PAPs respondents

Based on the age distribution analysis, the majority 84.6% of the PAPs were in the working age
group of 24 – 64 years of age while 15.4% belongs to the category of vulnerable group, hence,
they will need special attention during the implementation of the ARAP.
4.3.2 Educational background
Education is a major socio-economic variable, which influences nearly every aspect of human
life. Education is generally a thriving industry in the study area, like other parts of the country
where parents / guardians are constantly struggling to ensure that their family members attain, at
least, the minimal level of education. The educational level of the PAPs head of households has
attended different levels of education. As shown in Table 17, 53.8% of the PAPs have
completed primary school education, 30.8 had attended secondary education and 15.4% had up
to college/university level of education.
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Table 17: Head of Household’s level of Education
Level of education Frequency Percentage
Primary school 07 53.8
Secondary school 04 30.8
College – undergraduate 02 15.4
13
4.3.3 Marital status

Marital status is a very important factor in determining how a person gets affected or become
vulnerable to resettlement or relocation. The survey show that 53.8% (7) of the affected persons
were married whilst 38.5 (5) of the affected persons are widows. Widows are particularly
vulnerable because in African context, men generally control assets and upon death of their
husband they are not easily considered as heirs. This group will need special attention and
treatment during the implementation of the ARAP. Table 18 show the marital status of the PAPs
at Kibo mtaa in Ubungo ward.
Table 18: Marital status of respondents
Marital status Frequency Percentage
Married 07 53.8
Widowed 05 38.5
Single 0 0
Separated 01 7.7
Total 13 100
4.3.4 Average Households size

The average household size was 5.5 persons per household. This is a relatively higher than the
national, regional and district average household size which stood at of 4.8, 4.0 and 4.0 persons
respectively. The largest household size ranged from 7 to 9 people as shown in Table 19.
Table 19: Number of household members
Household size Frequency Percentage
2–3 3 23.1
4–5 3 23.1
6 -9 7 53.8
Total 13 100.0
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The high number of average household size has implication to the total number of dependants
who have been affected by the project. Based on the household survey a total of 72 household
members will be affected by the project
4.3.5 Occupation
Occupational pattern is a vital social fact that decides their livelihood pattern of the household.
As shown in Figure 12 the respondents were engaged in diverse occupations such as wage
employment, petty trader, urban farming, casual labour as well as carpentry and Manson.
According to the household survey, about 38.5.0% of the PAPs are government employees as
their main occupation. PAPs who depend on petty trade such as small shops, grocery as their
primary activities accounted for 30.8% of the PAPs. Those who were involved in agriculture
also account for 30.8% of the PAPs. Casual labour accounted for 15.4% and those with other
activities such as carpentry and Manson were 30.8% of the PAPs.
38.5
40
35 30.8 30.8 30.8
30
Percentage
25
20 15.4 15.4
15
7.7
10
5 0 0 0
0
Waged employment Petty trading Agriculture Casual
Others
laborer
(Carpentry, Driver and Manson)
Economic activity
Primary economic activities Secondary economic activities
Figure 11: Percent distribution of PAPs occupation

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4.3.6 Source of income and Average monthly income
PAPs average monthly income was difficult item to assess because some of them except the
government employee do not keep records of what they get from their major sources. Also some
of the PAPs were not willing to disclose what exactly they are getting from their business or any
activities. However, for those who responded to the question indicated that the average monthly
income generated from the major occupations varied widely from below Tshs 180,000 to above
1,500,000. The household‟s average income is shown in Figure 13.
46.2
50
45
40
35
Percentage
30 23
25
20 15.4 15.4
15
10
5
0
180,000- 500,000 500,001 – 1,000,000 1,000,001- Above 1,500,000
1,500,000
Average Household's income
Figure 12: Percent distribution of Average head of household’s income

Wage employment was reported to be the major occupation and source of income to significant
number of the head of households and followed by other businesses such as drivers, carpentry
and masonry.
4.3.7 Type of impacted house structures
The types of houses found in most of urban areas in Tanzania are similar to those found in the
project affected area. Most of the houses are modern built with cement floor, corrugated iron
sheets and cement blocks. The survey shows that 90% of PAPs houses consist of cement floors,
4.9% with mud floors and 13.4% tiles floor. 96.5% of the houses have corrugated iron sheets,
3.5% have tin and metal roof. Most of the houses owned by PAPs consist 98.8% have cement
blocks walls and 2.2% have poles. Number of rooms in PAPs houses varies with most of the
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PAPs houses comprises of 2 - 4 rooms (68.8%), 5 - 7 rooms (27.3%) and more than 8 rooms
(3.9%).
4.3.8. Domestic assets of the households
The household survey indicated that majority 88% of households had reported to have domestic
assets, while 12% of the households reported to have no agricultural assets. For those households
with domestic assets, it was further reported that about 84.6% households had mobile phones,
92.3% households had radio, 84.6% households had television, 61.5% households had fridge and
no households reported to own bicycle or motorcycle as shown in the Figure 14. Furthermore,
most (96%) of the households reported to own between one –three domestic assets while the
least (0.5%) of households reported to own more than three household‟s assets.
Figure 13: Percent distribution of head of household’s asset ownership

4.3.9 Willingness to relocate and Compensation preference

The households affected by the project declared their willingness to relocate should they receive
prompt and fairly compensation. Of the Households interviewed indicated their preference of
relocating to a site close to their current homesteads, though they are not sure of availability of
land within the area or if the compensation provided will allow them such opportunity. When
asked if they would want their Municipal Council to find alternative land for the affected PAPs it
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was revealed that they will not want alternative land as currently the sites that the Municipals are
developing are away from the area they are used to. Therefore, there was no hosting community
to be consulted. According to the socio-economic survey conducted in the project area all 13
PAPs interviewed preferred cash compensation instead of in-kind compensation.
4.3.10. Vulnerable People

In this EIA, vulnerable PAPs include elderly people (over 60 years old and widows. Table 20
shows more details about this category of PAPs.
Table 20: List of vulnerable people in the project area

S/n Type of vulnerability Number
1 Elders (Above 60 years old) with physical disability (Blind) 03
2 Widow (Female Headed household) 03
3 Elder with physical disability due to stroke – an encroacher at Kilungule A 01
in Kimara ward
4 An orphan – owner of the incomplete structure at Kilungule B mtaa in 01
Kimara ward – He is currently living in Iringa
Total 08
Source: Source: EARG Study Team, 2020
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5.0 THE STAKEHOLDERS AND THEIR ENGAGEMENT
5.1 Introduction
Stakeholder participation was done in accordance to Section 89 of the Environmental
Management Act (EMA) No. 20 of 2004 as outlined in Part V of section 17 of the EIA and Audit
Regulations (URT, 2005). Subsection (1) stated that, during the EIA process, the developer or
proponent shall in consultation with the Council, seek views of any person who is or is likely to
be affected by the project/activity; while subsection (2) provides detailed processes and
procedures for public/stakeholders participation in the EIA process.
Stakeholder participation in this project included different government institutions, beneficiaries,

private sector, individuals, and local communities associated with the project. Views and
concerns from stakeholders consulted are reflected in this report and contributes to the
identification of impacts as well as mitigation and enhancement measures for the identified
impacts
5.2 Objectives of the Public Consultation

The purpose of public consultation during the scoping was to ensure that the views, interests, and
concerns of project stakeholders were taken into account in the assessment of the potential
impacts of the project as well as in project decisions, particularly in the design of mitigation
measures. In addition, the public consultation aims to improve communication between the
project and impacted or interested groups. In the course of preparing for stakeholders
consultation, the following activities were undertaken:
• Stakeholder identification and analysis;
• Determine the type of consultation activities to be undertaken with each category of
stakeholders;
• Information disclosure, specifically the provision of timely and meaningful
information that is accessible to all stakeholders;
• Prepare the approach to and mechanisms for obtaining stakeholder feedback on the
information disclosed;
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• Prepare principles and ground rules guiding consultation with local communities;
and the program for consultation to ensure timely notification of consultation
activities and to tie in with key stages in the EIA process.
5.3 Stakeholder identification and analysis

The stakeholder identification process for the proposed 220kV transmission line was undertaken
through a participatory and transparent process. The stakeholders were chosen based on the
social, environmental and economic considerations. Through the stakeholder engagement the
EIA team was able to get information to help develop a plan that is tailored to the needs of
different stakeholder groups. A number of institutions were consulted in order to seek their input
for any requirements and procedures to abide during mobilization, construction and operation of
the proposed project. Whereas the local community was involved in order to inform them about
the proposed development and get their views and concerns regarding the project prior to
commissioning of any field construction work. Other stakeholders will be consulted during full
EIA. A list of key stakeholders and their role to the proposed development project is as provided
in Table 21.
Table 21: List of stakeholders and their role on the proposed project
Stakeholder Group Sub-Category Connection to Project
Ministries/Central Vice President Office- Mandate for Environment (EIAs) in Tanzania.
Government Division of
Environment
Ministry of Health and Responsible for health-related issues,
Social welfare particularly HIV/AIDs and other
communicable disease.
Ministry of Energy Responsible for energy related issues
Regional Authority Dar es Salaam  Administrative region where the project is
Regional Office to be implemented.
 Responsible to review investment issues
and land in the region.
Municipal Council Ubungo Municipal  Assisting with implementation of the
Authorities Council project
 Assisting with awareness creation to local
community.
 Monitoring of the project activities.
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 Reviewing land acquisition process.
Government National Environment  Carry on environmental audit and
Institutions Management Council environmental monitoring
(NEMC)  Review and recommend for approval of
Environmental and Social Impact Report
 Enforce and ensure compliance of the
national environmental quality standards
 Initiate and evolve procedures and
safeguards for the prevention of accidents
which may cause environmental
degradation and evolve remedial measures
where accidents occur;
Occupational Safety  Registration of the workplace
and Health Authority  Issuance of OSHA Compliance certificate
(OSHA)  Inspection on Occupational Safety and
Health related aspects.
 Enforcement of Occupational Health and
Safety Act, 2003 (Act No. 5/2003)
Tanzania Fire and  Providing professional services in the area
Rescue Force of disaster prevention and taming.
 Enhance community safety, quality of life
and confidence by minimizing the impact
of hazards and emergency incidents on the
people, environment and economy of
Tanzania.
Tanzania Electric  Mandated with electricity generation,
Supply Company transmission, distribution, supply, system
Limited - TANESCO operation, import and export of electricity
and electrical installation.
 Ensuring the operating conditions for
transmission line
Local and List to be determined  Interest in land, Health (HIV/AIDs),
International NGOs during full EIA process gender and environment.
 Organizations with a direct interest in the
initiative might influence it directly or
through public opinion. Such
organizations often have useful data and
insight and may become partners in areas
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of interest.
Local Communities/ Ubungo, Makuburi,  Directly impacted by environmental and
Affected Mabibo and Kimara social effects from the project (both
Communities wards positive and negative)
5.4 Methods of Stakeholder Participation

Various methods were used in ensuring that all relevant stakeholders are consulted and their
views incorporated in this report. Participatory methods such as focus group discussion and
public meetings were used. The team also visited all critical sites in the proposed project area
and conducted discussions with stakeholders on site to identify their views and concerns.
Specifically the following methodologies were used in undertaking this exercise include the
following:
5.4.1 Household Questionnaires
Household interviews were conducted using structured questionnaires. This technique was used
in order to get quantitative information, which could give the general picture of the affected
communities or adjacent communities. The types of data obtained by the questionnaires
included; house hold location and economic activities of the respondents, land tenure/land use
practices, population size, housing condition and size of the land. Therefore, questionnaire
interviews were administered in Ubungo ward at Kibo area and Kimara ward at Mavurunza area
where some settlements are likely to be re-allocated.
5.4.2 Focus Group Discussion and Checklist
Focused group discussions were conducted in the affected wards and streets using checklists.
Ward officials and Mtaa officials in the project area were invited to participate in the group
discussion. Efforts were made to ensure most of the affected communities in the area were able
to participate. TANESCO representative and local government leaders were invited in the
meeting. Also the discussion intends to collect specific data at the mtaa level, discussing about
availability of land for relocation and their preferences of where to be relocated in case their
structures will be affected .The discussion also focused on identification of sensitive sites/areas
such as cultural sites and grave yards that are within the mtaa or its neighbourhood. A checklist
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of village social services, economic activities and other infrastructure were also obtained during
discussion.
5.4.3 Public Meetings
In order to ensure that the Mtaa are informed of the project, the team conducted public meetings
at 7 Mtaas in which the transmission line will traverse. The team made efforts to ensure that
women attended and participated in the meetings. The meeting aimed at informing the mtaa
about the project and the activities that are associated with the project. Mtaas were also given an
opportunity to ask questions, raise their concerns and provide information to the team on issues
such as availability of land in the village for resettlement purposes. The public were informed
about the meeting through public announcement made by the Mtaa Executive Officers. The list
of the meeting participants is shown in Table 22.
Table 22: Number of Mtaas and participant involved in the meetings
S/n Mtaa name Male Female Total
1 Mavurunza 120 30 150
2 Kilungure A and Kilungule B 32 19 51
3 Baruti 16 14 20
4 Kibo 36 33 69
5 Kisiwani 43 15 58
6 Kibangu 25 16 41
Total 272 127 399
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Photo 7: Mtaa public meetings with in the project area
5.5 Identified Key Issues and Concerns

In general, stakeholders had different opinions with regard to the implementation of the proposed
220kV transmission line project. Some of the issues and concerns raised revolve around social
and environmental aspects. The issues and concerns raised during the consultations include;
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 Valuation and compensation issues
The issue of fair and timely compensation was also raised during the consultation. Stakeholders
complained that it is taking long time for the compensation to be paid to the affected people after
the completion of the valuation process. Stakeholders at Kibo mtaa reported that the valuation of
properties in the area was done since 2013 but no compensation has been paid so far. They
complained that they have been living in a difficult environment since the valuation has taken
place because they are not allowed to do any improvement in their houses as any modification
after the valuation will not be considered for compensation. Stakeholders raised concern that in
most cases local communities are not well informed of their rights, leave alone the compensation
procedure as a result people are denied of their rights.
 Accident, risks and Hazards
Accidents and risks may occur to workers during construction phase especially when handling of
machinery and equipment. The communities in the project area are very concerned about the
safety risks associated with construction of the power transmission line, which will involve high-
tension electricity, movement of tracks carrying construction equipment and existence of
substations around Mabibo area. The contractor will have to be sensitive of this issue during
mobilization and construction and mitigation measures associated with the raised concerns
should be implemented.
 Noise and Dust emission

Local communities were concerned that development of the project especially during
mobilization and construction phases; project activities will generate noise and dust. This may
affect the health of the workers and the people in surrounding areas. The communities
recommended contractor to dampen the ground during construction in order to avoid or reduce
dust emission.
 Encroachments of TANESCO way leave
During the field survey, it was revealed that some business and settlement structures were
located within the existing way leave of TANESCO in Ubungo and Kimara wards. During
discussion with community and local government officials, they admitted that they are utilizing
the TANESCO Way leave for various activities illegally and therefore, they expressed their
willing to vacate the area before the commencement of the project. Those who are engaged with
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vehicle maintenance at Ubungo Kisiwani were concerned with the possibility of getting
alternative areas for their activities since they are solely relying on these areas for their
livelihoods. The summary of stakeholder‟s views, concerns and the responses are provided in
annex 10.
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6.0 IMPACT ASSESSMENT AND ANALYSIS OF ALTERNATIVES
This chapter describes the potential environmental and social impacts of the proposed
transmission line system. It assesses how the project will interact with elements of the physical,
ecological, social, cultural or human environment to produce impacts to resources/receptors, and
the mitigation measures to the potential negative impacts. The potential environmental and social
impacts due to the project activities are considered in the stages of the construction phase and the
operation phase.
6.1 Impact Assessment Methodology
Impact identification and assessment starts with scoping and continues through the remainder of
the EIA Process.
 Impact Prediction: to determine what could potentially happen to resources/receptors as a

consequence of the Project and its associated activities;
 Impact Evaluation: to evaluate the significance of the predicted impacts by considering

their magnitude and likelihood of occurrence, and the sensitivity, value and/or importance of
the affected resource/receptor
6.2 Impact Prediction
The terminology and designations used to describe impact characteristics are shown in Table 23
Table 23: Terminology and designations for impact characteristics
Characteri Definition Designation
stic
Type A descriptor indicating the relationship of the Direct
potential impact to the Project (in terms of Indirect
cause and effect). Induced
Extent The “reach” of the potential impact (e.g., Local
confined to a small area around the Project Regional
Footprint, projected for several kilometres, International
etc.).
Duration The time period over which a resource /receptor Temporary
is potentially affected. Short-term
Long-term
Scale The size of the potential impact (e.g., the size of [No fixed designations;
the area with the potential to be damaged or intended to be a numerical
impacted, the fraction of a resource that could value or a qualitative
potentially be lost or affected, etc.). description of intensity]
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Frequency A measure of the constancy or periodicity of [No fixed designations;
the potential impact. intended to be a numerical
value or a qualitative
description]
The definitions for the type designations are shown in Table 24.
Table 24: Type of Impact

Type Definition
Direct Potential impacts that result from a direct interaction between the Project and a
resource/receptor (e.g., between occupation of a plot of land and the habitats
which are affected).
Indirect Potential impacts that follow on from the direct interactions between the
Project and its environment as a result of subsequent interactions within the
environment (e.g., viability of a species population resulting from loss of part
of a habitat as a result of the Project occupying a plot of land).
Induced Potential impacts that result from other activities (which are not part of the
Project) that happen as a consequence of the Project (e.g., influx of camp
followers resulting from the importation of a large Project workforce).
Once impact characteristics are defined, the next step in the impact assessment phase was to
assign each potential impact a “magnitude”. Magnitude is typically a function of some
combination (depending on the resource/receptor in question) of the following impact
characteristics:
- Extent;
- Duration;
- Scale;
- Frequency; and
- Likelihood (for unplanned event).
Magnitude essentially describes the intensity of the change that was predicted to occur in the
resource/receptor as a result of the potential impact. The universal magnitude designations are:
- Positive;
- Negligible;
- Small;
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- Medium; and
- Large.
In addition to characterizing the magnitude of impact, the other principal impact evaluation step
is definition of the “sensitivity/vulnerability/importance” of the impacted resource/receptor.
As in the case of magnitude, the sensitivity/vulnerability/importance designations themselves are
universally consistent, but the definitions for these designations vary on a resource/receptor
basis.
- Low;
- Medium; and
- High.
6.3 Evaluation of Impact Significance
The correlation matrix between project activities and impacts for construction and operation
phases of the project is presented in Error! Reference source not found.. In this table, using a set
of developed criteria impacts were awarded a score ratings on particular impacts as follows:
+3 Very high positive impacts
+2 High positive impacts
+1 Minor positive impacts
0 No impacts
-1 Minor negative impacts
-2 High negative impacts
-3 Very high negative impacts
Mitigation and enhancement measures are developed for significant impacts that were rated +2,
+3, -2, and -3. However, some impacts that appears to have less significant values by scoring -1
or +1 on the rating matrix as they stand alone cumulatively, they have significant impact to the
environment, these were considered and were discussed under cumulative and residual impacts
Mitigation Hierarchy
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 Mitigation and Enhancement: to identify appropriate and justified measures to mitigate
potential negative impacts and enhance potential positive impacts. The following mitigation
hierarchy is considered.
 Avoid at Source, Reduce at Source: avoiding or reducing at source through the design of
the Project (e.g., avoiding by siting or re-routing activity away from sensitive areas or
reducing by restricting the working area or changing the time of the activity);
 Abate on Site: add something to the design to abate the impact (e.g., pollution control
equipment, traffic controls, perimeter screening and landscaping);
 Abate at Receptor: if an impact cannot be abated on-site then control measures can be
implemented off-site (e.g., noise barriers to reduce noise impact at a nearby residence or
fencing to prevent animals straying onto the site);
 Repair or Remedy: some impacts involve unavoidable damage to a resource (e.g.

agricultural land and forestry due to creating access, work camps or materials storage
areas) and these impacts can be addressed through repair, restoration or reinstatement
measures; and
 Compensate in Kind, Compensate Through Other Means: where other mitigation

approaches are not possible or fully effective, then compensation for loss, damage and
disturbance might be appropriate (e.g., planting to replace damaged vegetation,
financial compensation for damaged houses, crops or providing community facilities for
loss, recreation and amenity space).
 Residual Impact Evaluation: to evaluate the significance of potential impacts assuming

effective implementation of mitigation and enhancement measures. A summary of the
interaction between Project activities and its potential impacts is provided in Table 25.
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Table 25: Impact Correlation Matrix for Kinyerezi T – Off Point to New Mabibo Transmission Line
Mobilisation phase Construction phase Operation phase Decommission phase
maintenance of power line

equipment and materials
Recruitment of labour
access/services roads
Spoil management
Layoff of workers
Site rehabilitation
Management a of
Management and
transmission line
Land acquisition
Transmission of
Construction of
Construction of
Construction of
Mobilization of
Demolition of
Site clearance
infrastructure
Substations
substations
electricity
A: Impacts Related to the Physical Environment
1 Acceleration of soil erosion -1 0 -1 0 -2 -1 -2 0 0 -1 0 -2 +1 -1
2 Impaired water resource quality 0 0 -1 0 -2 -2 -1 0 0 -1 0 -1 +1 -1
3 Solid and liquid waste generation -1 -1 -1 0 -1 -2 -2 0 -1 -2 0 -2 +1 -2
4 Impaired landscape/aesthetics 0 0 -1 0 -2 -2 -1 0 0 0 0 -1 +2 -2
B: Impacts Related to the Ecological/Biological Environment
5 Loss of local terrestrial biodiversity -1 0 -1 0 -1 -1 -1 0 -1 0 0 -1 +1 -1
6 Introduction of alien and invasive species -1 0 -1 0 -1 -1 -1 0 -1 0 0 -1 +1 0
C: Positive impacts Impacts Related to Socio-economic Environment
7 Increased employment opportunities and local +1 +2 +1 0 +2 +2 +2 +2 +1 0 -1 +1 +1 0
economy
8 Increased quality, reliability and efficiency of 0 0 0 0 0 0 0 +2 +1 +1 0 -2 0 0
power supply
Negative impacts
9 Impaired local air quality -2 0 -1 0 -1 -1 -1 0 0 0 0 -1 0 --1
10 Increased noise disturbance and vibration -2 0 -1 0 -1 -2 -1 0 0 0 0 -1 0 -1
11 Impact on community health and safety -2 0 -2 0 -2 -2 -2 -2 -2 -2 0 -2 -1 -2
12 Loss of land and residential structures 0 0 0 -2 0 0 -2 0 0 0 0 0 0 0
13 Loss of public properties 0 0 0 -2 0 0 0 0 0 0 0 0 0 0
14 Impact to vulnerable people 0 0 0 -2 0 0 0 0 0 0 0 0 0 0
E. Impacts Related to Archaeological and cultural heritage values
15 Loss of Artefacts 0 0 -1 0 -1 -1 -1 0 0 0 0 -1 0 0
16 Destruction of graves and graveyard 0 0 -3 0 -0 -1 -2 0 0 0 0 -1 0 0
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6.3.1. Biophysical Impacts assessment
6.3.1.1 Negative during construction phase

Impaired water resources quality
Impact on hydrogeology due to construction of tower foundation and access road
The project will cross small streams and one big river (Mbezi River) in several locations of the
transmission line. The impact on surface water during construction of tower foundation and
access roads is directly linked to slope instability and erosion causing siltation and increase
turbidity. Other impacts on surface water will arise from improper waste disposal and sewerage
from nearby settlement. The significance of potential impacts to water resources due to
construction of tower and contamination from inappropriate waste storage and disposal during
the construction phase are assessed in the Table 26.
Table 26: Impact Significance on Water Resources due to tower construction and
Wastewater
Potential for impacts to water resources due to tower construction and wastewater discharges.
Impact
Negative Positive Neutral
Nature
Potential impacts to water resources would be considered to be negative (negative).
Direct Indirect Induced Cumulative
Type
Impacts to water resources would be direct impacts from Project activities.
Temporary Short-term Long-term Permanent
Duration The construction phase will last approximately 12 – 24 months. The duration of potential impacts is
therefore long-term.
Local Regional International
Extent Potential impacts would be limited to the Project site footprint and hence would be considered to be
local.
Increased soil erosion caused by excavation for foundation and development of access roads coupled
Scale with waste disposal in the stretch of 6 km will be significant
Frequency Impacts to surface water from wastewater discharges could occur intermittently but repeatedly
throughout the day for the duration of the construction phase.
Positiv Negligible Small Medium Large

Magnitude e
Potential impacts to surface water quality in the Project area from wastewater discharges and runoff
are expected to be of low magnitude.
Receptor/ Resource Low Medium High
Sensitivity The Project is near some sensitive receptors with regards to surface water quality, such as river
crossings. Also, groundwater is a valuable resource for the villages. Overall sensitivity is rated as
Medium.
Negligible Minor Moderate Major
Significance ThecombinationofaMediumResourceSensitivityandMediumImpactMagnitudewillresult in an overall
Moderate Impact.
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Mitigation measures
 Restricts the distance of towers away from the rivers and streams
 Avoid excavation of foundation during wet season and protect
 Prohibit and enforce measures to minimize pollution of surface water
 Surround the storage areas for batteries and waste in substation and other storage areas with
containment/spill control measures
 Position all drainage/tanks, etc. on concrete hard standing to prevent any seepage into
ground.
 Use of spill or drip trays to contain spills and leaks
 Establish Guidelines and procedures for immediate clean up actions following any spillages
of oil, fuel or chemicals.
 Prepare standard operation procedures (SOPs) to manage any oil spills, leaks and/or
seepages.
 Train operating personnel on the SOPs.
 Check and replace oil separators regularly
Impaired local air quality
During construction phase, potential dust pollution will eliminate from site preparation activities:
 Site clearing and related excavation and compaction activities, Dust emissions might
impact on the visibility of the nearby roads consequently impacting on traffic safety.
 Operation of heavy machinery and related equipment for earthmoving and construction
purposes (excavators, bulldozers, cranes, etc.) will generate dust.
 Transport of building materials and supplies onto the site, and transport of wastes off site.
 Movement of vehicles along roadways and paths, in and out of the site and within the
site.
Emissions and dust can occur from any of the activities listed above, but varying in different
degrees durations and frequencies. For example, road dust generated from vehicular movements
within the site may occur at regular intervals. Other activities may only occur at a certain stage of
the construction process, e.g. earthmoving, excavation, demolition and compaction.
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The air quality impact on construction transmission line, the 220 kV segment for 9 km would
cause emissions over the thresholds, the construction equipment and emissions from motor
vehicles used to mobilize the workforce and materials for construction would result in temporary
less significant particulate matter impacts. The area where the project is located is already
affected by other land uses such that the particulate matter obtained and reported on chapter 4 is
likely to be synergistic effects of the present land uses. It must be noted that development of the
proposed substation in the area will add to already existing sources of pollution. The PM2.5 and
PM10 Measurement listed in Table 4 would reduce or exceed if mitigation measures will not be
addressed. The impact significance is shown on Table 27.
Table 27: Impact Significance on ambient air quality due to construction

Impact Impact on ambient air quality due to construction activities.
Impact Nature Negative Positive Neutral
Impact on human health within the general population is negative.
Impact Type Direct Indirect Induced
Impact on human health within the general population is direct.
Impact Duration Temporary Short-term Long-term Permanent
Impact Extent Local Regional International
Impacts on human health within the general population are expected to be local
Impact Scale The dust impacts are expected to be localized and short-term. The air quality impacts are
expected to be small if all mitigation measures and good site practices are implemented.
Frequency It occur in construction phase
Impact Magnitude Positive Negligible Small Medium Large
Considering the magnitude of impacts to air quality , and is medium

Impact Significance Negligible Minor Moderate Major Critical
The significance of this impact is moderate

Mitigation measures
 Specify transport networks and locate stockpiles as far body parts of trucks at all exits of
the construction site;
 Control the height of unloading the fill materials during filling as far as possible;
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 Compact the reclaimed land immediately to avoid fugitive dust emissions;
 Maintain and check the construction equipment regularly;
 Switch off engines when not in use
 Use sprinkle loose surface earth areas with water to keep dust levels down.
 Use appropriate PPE (respratory masks)
 Cover and contain construction materials in trucks and storage places
 Confine project activities to core construction area
 Maintain all machinery and equipment in good working order to ensure minimum
emissions including carbon monoxide, NOX, SOX and suspended particulate matter;
 Covers over wastes
Increased noise disturbances and Vibration

Noise pollution is generally defined as regular exposure to elevated sound levels that may lead to
adverse effects in humans or other living organisms. According to the World Health
Organization, sound levels less than 70 dB are not damaging to living organisms, regardless of
how long or consistent the exposure is. Exposure for more than 8 hours to constant noise beyond
85 dB may be hazardous. This can express itself through restlessness, headaches, inadequate
sleep, and diseases of the nervous and vascular system. The occurrence of such diseases lowers
the ability of individuals to perform well.
The proposed substation project is located in urbanized areas, surrounded with the surrounding
community that engaged in different activities such as commercial activities such as shops,
market, garage, different institution such as National Institute of Transportation (NIT)and small
cultivation activities
In the construction phase the dominant source of noise is from the construction equipment such
as excavators, usually a diesel without sufficient muffling. Construction equipment can be
considered to operation in two model, stationary and operational. Stationary equipment operates
in one location for one or two days at a time, with either fixed operation (pump, generator,
compressor), mobile equipment moves around the construction site with power applied in
cycling motion (bulldozer, loader) or to and from the site (truck).
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The collected measurement of noise level show that the maximum noise level at market area is
88dB this is above the recommended national and international standard. The presence of
constriction activities such as movement of truck and machinery will possibly increase noise
level of the area such as bulldozer, backhoe and loaders can produce noise of 115Db, 98dB and
108dB respectively as shown in the Table 28.
Table 28: Assumed construction Equipment sound pressure level inventory

Construction Equipment SPL, dB(A)
Bulldozer 115
Backhoe 96
Impact pile driver 101
Loaders 108
Vibratory roller 102
Fuel truck 104
Welding machine 101
Cranes 106
Dump truck 105
Grader 114
Fork lifts 112
Compressors 104
Generators 93
Source: OSHA, 2003
The impact will be significantly during construction phase requiring mitigation measures.
Table 29: Impact significance of noise impact during construction phase

Impact Noise and vibration
The nature of impact is negative
Direct impact to the receptor and workers during construction phase of
substation and towers. Some noises are likely to be reduced when the mitigation
measures are well addressed by contractor while others will be a residual impact

The impact is temporary it occurs during construction phase

The impact is expected to be local to the society.
Impact Scale It is anticipated that impact will be located within the areas under construction
Frequency It occurs in construction phase
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Noise levels generated by construction equipment and machineries are
significant, particularly within a distance of 100m from the construction site.
The impact magnitude is minor.

The significance of this impact is Moderate
Mitigation and management measures

 Maintain equipment and vehicles to manufacturers‟ standards;
 Limit operating times to daylight hours;
 Close and turn off plants, compressor, generator and engine compartment doors when not
in use;
 Avoid use of particularly noisy plant early in the morning
 Restrict the number of plant items in use at any one time;
 Use appropriate PPE to workers working in noisy areas
 Plant maintenance operations will be undertaken at distance from noise-sensitive
receptors;
 Reduce the speed of vehicle movements
Solid and liquid wastes generation and improper waste management

During the construction phase, waste from construction materials, if not stored and disposed of
appropriately, have the potential to cause soil and water contamination through direct release or
from contaminated storm water runoff. The majority of the generated wastes from the project
during the construction phase will be non-hazardous. General construction waste will comprise
of surplus or off- specification materials such as concrete, steel cuttings/filings, wooden planks,
packaging paper or plastic, wood, plastic pipes, metals, etc.
Construction waste is different from municipal waste and typically comes from renovation,
construction, modification and demolition of built facilities. Components of construction waste
include concrete, wood, metals, gypsum wallboard, and roofing. A small proportion of the waste
generated during construction will be hazardous, including used paint, engine oils, and hydraulic
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fluids and waste fuel, spent solvents from equipment cleaning activities, and spent batteries or
spent acid/alkali from the maintenance of machinery on site.
Waste from the construction activities arise from the construction material. The material used in
the construction process can be classified into two major parts (Gavilan & Bernold, 1994)
Consumable material and non-consumable material. It is estimated that 20% to 30% of the
construction material is the waste. All wastes will be handled, stored and disposed in accordance.
Hazardous wastes will be contracted out to authorize industrial waste companies. The impact of
significance is shown in Table 30.
Table 30: Impact significance of solid and liquid wastes and improper waste management
during construction
Impact Impact of improper waste management

Nature Potential impacts of improper waste management would be considered to be adverse
(Negative). Direct Indirect Induced Cumulative
Type Impacts on improper waste management would be direct impacts generated from project
activities.
Temporary Short -term Permanent
Duration The construction phase will last approximately 18-24 months. Significant amount of waste
will be generated during contraction phase with little waste coming from repair and
maintenance during operation. Thus, the duration of impacts is therefore short term
Local Regional Inter national
Extent Potential impacts would be limited to the project area particularly on materials storage
yard, towers and substation location and hence considered to be local.
Construction activities will take place within the project area. The total approximate
Scale quantities of waste that could be a potential source of impact during this stage (assuming a
maximum of 100 workers per day) include 500 kg/Cap/day of solid waste.
Impact to soil and water due to un inappropriate waste storage and disposal could occur
Frequency immediately but repeatedly throughout the day for the duration of the construction phase.
Positive Negligible Small Medium Large
Magnitude Potential impacts on improper waste management are expected to be of small magnitude
given the length of the transmission line (9km), in area with similar infrastructures and
only one substation.
Receptor/ Low Medium High
Resource If not properly managed waste will contaminate soil and surface water affecting their
Sensitivity quality.
Significance The combination of a Medium Resource Sensitivity and Small Impact Magnitude will
result in an overall Minor Impact.
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Mitigation and Management Measures
The following measures will be put in place for the project during construction phase:
 Pursue the policy of Four R‟s – Recover, Recycle Reduce and Reuse – to manage its
waste.
 Provide training to laborers for waste disposal in designated areas and use of sanitation
facilities.
 Implement proper storage of the construction materials and wastes to minimize the
potential damage or contamination of the materials.
 Segregate hazardous and non-hazardous waste and provide appropriate containers for the
type of waste type.
 Store waste systematically to allow inspection between containers to monitor leaks or
spills.
 Ensure that storage areas have impermeable floors and containment.
 Dispose of waste by licensed contractors.
6.3.1.2 Impacts during operation phase

Negative biophysical impacts
During operation phase, the impact on water resource is likely to occur during rainy season where the
substation at Mabibo may generate oil contaminated rainwater. If released in surface water untreated, this
discharge may have a direct impact on the water quality and ecological implications. In order to minimize
this risk, oil separators will be installed so as to capture oil in rainwater prior to discharge. For Mabibo
substation, the discharge stream will be sent to an on-site wastewater treatment plant. The impact of
ground and surface water contamination from accidental spills and improper disposal of excavated
materials, waste and wastewater is similar to those described in the soils and geology section above.
Given the low sensitivity of the surrounding areas and the medium magnitude of the potential
consequences of an uncontrolled spill, impact is rated as moderate as shown in Table 31.
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Table 31: Impact Significance on Water Resources due to potential leaks/spills
Impact on water resources due to due to potential leaks/spills
Impact
Nature
Potential impacts to surface water would be considered to be adverse (negative).
Direct Indirect Induced Cumulative
Type
Impacts to surface water would be direct impacts from project activities.
Temporary Short-term Long-term Permanent
Duration The operation phase will last for approximately 40years. The duration of potential impacts is
therefore long-term.
Local Regional International
Extent Potential impacts would be limited to the project site footprint, and hence would be considered to be
local.
Scale The scale of potential impacts due to leakage of hazardous materials including oil spillage is
potentially low due to the fact that all transformers and reactors will be fitted with oil containment
chambers to capture any leakage and spillage.
Potential impacts would be expected to be infrequent, only taking place in case of leakage and
Frequency
spillage and the spread only during rainfall, after loss of containment or accidental spills.
Magnitude Potential impact to surface water quality in the project area due to accidental releases is expected
to be of Negligible due to treatment (oil separator) prior to discharge.
Low Medium High

Receptor/ Accidental releases of hazardous substances are not likely to happen because the substation is
Resource located away to sensitive surface water sources and all reactors and transformers are fitted with
Sensitivity facility to capture any possible leakages. Therefore, sensitivity is rated as Low.
Significance The combination of a Low Resource Sensitivity and Small Impact Magnitude will result in an
overall Negligible Impact.

 Surround the storage areas for batteries and waste in substation and other storage areas
with containment/spill control measure.
 Position all drainage/tanks, etc on concrete hard standing to prevent any seepage into
ground.
 Establish Guidelines and procedures for immediate clean up actions following any
spillages of oil, fuel or chemicals.
 Prepare standard operation procedures (SOPs) to manage any oil spills, leaks and/or
seepages.
 Regularly check and replace oil separators.
Impaired air quality
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During operation, phase dust pollution is not anticipated during operation phase because the site
surface will be concrete paved and hence limited or no generation of particulate matter .Although
in operating system (transformer and generator) may generate small amount of emission which is
not significant impact.
Increased noise disturbances and Vibration

The primary piece of equipment within a substation that is responsible for the production of
noise is the transformer, air compressors, fans, and generators. During the operation phase the
noise pollution anticipated from substation operation is not significant, except the humming of
transformers which may not be detectable outside the perimeter wall fence and given the Project
site is front a busy road. On the other hand, noise from overhead line way leave expected from
transmission line is not significant. The impact significance is shown in Table 32.
Table 32: Impact significance of noise impact during operation phase

Impact Noise and vibration
The nature of impact is negative
Direct impact to the receptor and workers during construction and operation phases of
substation and when the mitigation measures are not well addressed by contractor
The impact is Permanent ant it is long term until the decommissions phase
The impact is expected to be local to the society.
Impact Scale It is anticipated that impact will be located within the area
Frequency It occur in operation phase

Noise levels generated by Transformer, air compressor and generator are significant,
particularly within a distance of 500m from the construction site. The impact magnitude
is Medium.

The significance of this impact is Moderate
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Mitigation Measures
 Install portable barriers to shield compressors and other small stationary equipment
where necessary
 Well-maintained equipment to be operated on-site;
 Ensure regular maintenance of equipment such as lubricating moving parts, tightening
loose parts and replacing worn out components;
 Orientate equipment known to emit noise strongly in one direction so that the noise is
directed away from receptors far as practicable; and
 Avoid transportation of materials on- and off-site through existing area
Solid and liquid wastes generation and improper waste management

During operation, wastes will be limited to wastes generated from the substations, such as waste
oil and general wastes. If not stored and disposed of appropriately, have the potential to cause
soil and water contamination through direct release or from contaminated storm water runoff.
General wastes will comprise of food waste, plastic, glass, aluminum cans and waste packages
will also be generated by the employees in Mabibo Sub Station. A small proportion of the waste
generated will be hazardous, including used paint, engine oils, hydraulic fluids, light bulbs, and
waste fuel, spent solvents from equipment cleaning activities, and spent batteries or spent
acid/alkali from the maintenance of machinery on site. Since employees during operation will be
limited, and oil waste will not be generated frequently, impact significance is negligible. The
impact significance of improper waste management during operation is shown in Table 33.
Table 33: Impact Significance of improper waste management during operation
Impact Potential for contamination from inappropriate waste management.
Nature Potential impacts caused by contamination resulting from improper waste management during operation
would be considered to be adverse
(Negative).Direct Indirect Induced Cumulative
Type Impacts on improper waste management would be direct impacts generated from project
activities like maintenance and repairs during operation
Temporary Short -term Long-term Permanent
Duration The duration of impacts i s therefore long-term.
Local Regional Inter national

Extent Potential impacts would be limited to the project area and it‟s downstream, and hence would be
considered to be local.
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Wastes will be limited to wastes generated from the substations, such as waste oil and general wastes.
Scale Considering proper waste management practices will be implemented, the scale of potential impacts due
to release of waste is considered small
Frequency Impacts to soil and water resources due to inappropriate waste storage and disposal may occur but the
likelihood of this happening is low.

Magnitude Considering mitigation measures in place, potential impact to soil and water quality in project area du e
to inappropriate waste disposal are expected to be of Negligible magnitude.
Receptor/ Low Medium High

Resource The project is away from any sensitive resources such as agricultural lands and domestic use. Overall
Sensitivity sensitivity is rated as low.

Significance The combination of a Medium Resource Sensitivity and Small Impact Magnitude will result in an overall
Negligible Impact.

The following measures will be put in place for the project during construction phase:
 Educate workers on site to avoid, reduce and reuse wastes generated.

 Site and signpost waste storage facilities in the project site.
 Manage and dispose all waste collected in accordance with the required regulations.
6.3.1.3 Impacts during decommissioning phase

The decommissioning process will comprise the following tasks:
i. Remove the conductors from steel lattice towers;
ii. Remove the insulators and other associated fittings from the lattice towers;
iii. Dismantle by unbolting and/or cutting each steel lattice tower component;
iv. Using lifting cranes, place steel lattice tower sections in trucks, cover flatbed
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The impacts on water resource quality during decommissioning would be similar to the
construction stage. It will be ensured that debris and other waste materials are not disposed in the
surface water bodies. Impact would be minor regional long term positive.
Impaired air quality
The activities involving dismantling, disassembly of the various components of the power
transmission line and substation will generate air pollution and impacts would be moderate local
short term negative.
Mitigation Measures
 Proper handling, using mask will reduce impact of air pollution
Impact on noise and vibration
The decommissioning activity will generate noise due to dismantling, disassembly of the various
components of hybrid power plant. The contractor needs to comply with occupational health
safety guideline during this stage. Impact would be moderate local short-term negative.
Impact on Soil & Land Use
The decommissioning activities are likely to have impacts on soil erosion due to demolition
activities. Therefore, proper environmental protection measures should be adopted to prevent any
adverse incidences. Parcels of land under permanent structures such as towers, substation
buildings etc need to be restored to its near original state by re-laying of the topsoil. This phase
will not create negative impact to the flora and fauna present in and around the site. Impact
would be moderate local long term positive.
6.3.2 Socio-economic impact assessment
This section describes the predicted socio-economic impacts associated with construction and
operation of the project. It is based on the baseline data presented and the impact assessment
methodology detailed in Chapter 4.
A project‟s area of influence generally includes the following:
 Direct footprint of the land that will be acquired and used. This is generally the land area
that will be fenced and reserved for the project and where the public will not be allowed
access.
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 A physical distance around the direct footprint at a scale depending on the emissions related
to a particular activity.
 A physical distance around the direct footprint at a scale depending on the indirect effects of
a particular activity.
Impacts are described in the context of the effect that a project or a project‟s activities will have
on a receptor. In this instance, the project receptors are the local people located within the area of
influence and along ROW that may be impacted or influenced by the project (as a result of their
proximity to the project site and/ or project associated infrastructure).
6.3.2.1 Impacts during construction phase

Positive impacts
Improved employment opportunities and local economy
The project will generate a range of employment opportunities. During construction, it is
expected that about 220 people including Japanese, local workers workers are expected to be
employed during the construction phase. The breakdown of workers will be as follows: -
i. Civil & Building work → About 50 people,
ii. Substation work → About 70 people
iii. Transmission line work → About 100 people
The number of people employed by the project will decrease at the end of the construction phase.
It is anticipated that approximately 10 employment opportunities will be created during the
operation phase. The project will also require security. Security personnel will be employed
during construction phase.
The resulting impacts (e.g. increase in employment opportunities, increase in income for local
people employed by the project) were assessed as a positive. Significance of impact on
employment opportunities and local economy is shown in Table 34.
Table 34: Significance of Impact on employment opportunities and local economy

Impact Impact on increased employment opportunity to the local community
Employment opportunity to local community is considered positive
The impact is direct.
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Impact Temporar Short-term Long-term Permanent
Duration y impact will be temporal during construction and permanent during operation phase
The
Impact Extent Local Regional Global
The impact is limited to the project site.
ImpactScale The impact scale is Medium.
ImpactFrequency The impact will occur continuous during new recruitment on construction phase and
operation phase.
ImpactMagnitude Positive Negligible Small Medium Large
The impact magnitude is medium given the number of people to be employed.
Vulnerabilityof Low Medium High
Receptors The vulnerability of receptor is likely to be Low.
Significance Negligible Minor Moderate Major
The significance is likely to be Minor.
Measures to maximize positive impacts

 Develop and implement a local recruitment and procurement management plan.
 Consult with relevant stakeholders, including government authorities, especially mtaa and
ward leaders in developing the local recruitment plan.
 Inform mtaa and ward leaders of job opportunities in a timely manner.
 Inform local businesses of contracting opportunities in a timely manner such as awareness on
forthcoming investment and employment opportunities such as food vendors.
Improvement in Quality, reliability and Efficiency of power supplied

This is positive impact of the establishment of the propose project during operation phase, the
reliability and quality are two important aspects of any electrical power supply system. Power
Reliability means availability of power supply 24×7 basis that constitutes adequacy of electrical
system at all levels from generation, transmission to distribution. However, power quality refers
to both the extent of deviation or distortion in pure supply waveform and the continuity of
supply. Any significant deviation in the magnitude, frequency, waveform or symmetry of line
voltages is a potential power quality problem. Now days Tanzania is in middle economy, and
engaged more in industrial, commercial and domestic facilities in which more energy
(electricity) is needed, a reliable power system has enough generation, demand response and
network capacity to supply customers with the energy that they demand with a very high degree
of confidence. This requires the system being in a secure operating state, that is, able to
withstand shocks to its technical equilibrium. The improvement of quality, reliability and
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efficiency of power supplied will attract more investors to invest in the country. The significance
on improvement of quality, reliability and efficiency of power supplied is shown is Table 35.
Table 35: Significance on improvement quality, reliability and efficiency of power supplied
Impact Improvement quality, reliability and efficiency of power supplied
Improvement quality, reliability and efficiency of power supplied is Positive
Direct impact the proposed project will improve quality, reliability and efficiency of
power supply through improving voltage transported, substation to regulate and
inconsistency and fluctuations
The improvement of quality reliability and efficiency of power supply

The impact is expected to be local to the society, regional and National
ImpactScale It is anticipated that the project will be located within the city and country through
National grid
Frequency It occur in operation phase
Considering the magnitude of impacts to improve the quality , and efficiency of power is
positive
Impact Significance Negligible Minor Moderate
magnitudeofthisimpactisNegligibletoSmall. Major Critical
The significance of this impact is major
Enhancement of the impact

 Ensure project is timely implemented to realize the benefits
 Increase income to the country
 Improve life standards of the people
 Growth of the city and town
 Enhance development activities like business and industries
 Lower electricity bills
 Reduce power losses
 Improve voltage to equipment
Negative impacts impact during construction phase

Impact on community health and safety
Site preparation activities, transport of materials and civil works will cause disturbances to neighbouring
settlements due to dust, noise and vibration that will be generated by these activities. Particularly,
settlements located close to the existing transmission line and along access roads will be affected. Around
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220 workers in cumulative total number are expected during the peak of construction. During the peak
period of construction, around 50 - 100 workers on daily basis would be required. Since the transmission
line construction will occur on a short distance and in areas where there is existing power transmission
line temporal demographic changes during construction are not likely to be significant.
The influx of people will influence the change of behaviour of some members in the community due to
the interaction of people with different lifestyles and behaviour. This will increase the chances of
infection of diseases including HIV/AIDs and Sexual Transmission Diseases (STDs). Also, the influx of
workers in the area may increase level of crime and insecurity among community members. Since the
proposed project is located in a City with high concentration of people and traffic volume, the transport of
workers and goods to and from the Project site will also impact traffic conditions. Heavy cargo to the site
will be transported via different access roads. With an increase in vehicles, particularly heavy haulage
vehicles, there will be a potential for accidents and inquiries to occur.
However, the construction of transmission towers will only take a couple of months. Thus, the presence
of workers in a particular area will be local and temporary. Given the existing management measures, the
local extent and scale of the impact, the impact was assessed as Minor and negative. The significance of
Impact on Community Health and Safety during construction is shown in Table 36.
Table 36: Significance of Impact on Community Health and Safety during construction
Impact Impact on community health, safety and security during construction
Increase of risk in community health, safety and security is negative.
The impact is both direct and indirect being within the city other factors
Impact can range from short to long-term, if not properly addressed
The impact is limited to the local communities that are located close to the
transmission line and along access roads.
Impact Scale The impact scale is Medium.
Impact Frequency The impact is likely to occur during the construction phase, at certain inevitable
occasions.
Impact Positive Negligible Small Medium Large
Magnitude Influx of workers and impacts of construction activities may increase risk to
community health. The impact magnitude is likely to be Medium.
Vulnerability of Low Medium High
Receptors The transmission line towers will be located within the existing power transmission
line. However, there are nearby communities located close to the transmission line
route and along access roads. Thus, the receptor sensitivity is considered Medium.
The significance is likely to be Moderate.
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Mitigation Measures
 Train all workers on the transmission routes and common symptoms of communicable
diseases as well as sensitization of enforcement of HIV/AIDS law and regulations.
 Establish a workforce code of conduct. Include in the code specific measures on anti-
social behaviour.
 Prepare emergency management procedures, should a health issue escalate and require a
rapid response.
 Implement a grievance mechanism
Increased accidents, risks and hazards
The construction of the transmission line and substation will require around 220 workers in
cumulative total number are expected during the construction. During the peak period of
construction, around 50 to 100 workers on daily basis would be required. These workers will
be exposed to noise, dust, vibration at source and other occupational hazards related to site
preparation and construction works. In particular, the construction of transmission towers
would require work at considerable heights.
It is important to note that construction period will only last for approximately 12 months.
Operation of construction machineries will also be intermittent. Thus, these impacts will be
temporary as shown in Table 37. In order to ensure the protection of health and safety of all
the workers, mitigation and management measures will be implemented in accordance with
applicable laws and regulations.
Table 37: Significance of impact on accidents, risks and hazards during construction
Impact Increased accidents, risks and hazards
Potential health and safety risks to workers are negative
The impact is direct to the workers‟ health and safety.
Impact Duration Temp Short-term Long-term Permanent
oral
Impact is temporal to short term effect.
The impact is limited within the local area.
Impact The impact scale is medium.
Scale Frequency
Impact Theimpactlikelyoccursduringtheconstructionphasewiththerarefrequency.
Impact Magnitude Positive Small Medium Large
Negligible
The impact magnitude is likely to be Medium since the workers and local
communities are directly exposed to the hazards.
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Vulnerability of Receptors Low Medium High
The vulnerability of receptor is likely to be medium since thousands of workers will
be involved in the project
Significance Negli Minor Moderate Major
giblesignificance is likely to be moderate.
The
Mitigation measures
 Provide and enforce the proper use PPEs
 Provide health checks to the employees
 Provide training on relevant safety measures, first aid procedures and emergency response to
workers.
 Provide full package of first aid kit at work places
 Monitor implementation of the training over time
 Provide safety signs
 Ensure regular maintenance of machines and equipment to minimize oil leakage
 Create awareness on all security and safety issues and hazards at the site
Destruction on graves and graveyard

The proposed project will affect graves that are in a grave yard along the power transmission
line. It is anticipated that a total of 135 graves beneath two towers at Ubungo Kisiwani (Photo 8)
will be affected by the project and will have to be relocated prior to implementation of the
project. Also, there is another Kijiweni grave yard at Mavurunza mtaa in Kimara ward (Photo 9)
with about 15 graves that are likely to be affected by the proposed project. The impact
Significance on archaeological and cultural heritage is shown in Table 38.
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transmission line at Ubungo Kisiwani in Ubungo ward
Photo 9:Graves in the existing Power transmission line likely to be affected by the New
transmission line at Mavurunza mtaa in Kimara ward
Table 38: Impact Significance on archaeological and cultural heritage

Impact Impact on graves and other archaeological and cultural heritage
Impact Negative Positive Neutral
Nature Impact on graves and grave yards during construction is negative.
Impact Direct Indirect Induced
Type The impact is direct to the sites and objects with values.
Impact Temporary Short-term Long-term Permanent
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Duration Impact is likely to be long-term until the duration of the project.
Impact Local Regional Global
Extent The impact is limited within the affected localities.
Impact The impact scale is low but has the potential to be high depending on unplanned discoveries.
Scale
Impact The impacts likely to occur during the construction with the rare frequency.
Frequency
Impact Positive Negligible Small Medium Large
Magnitude The impact magnitude is likely to bemedium.
Receptors The vulnerability of receptor is likely to beMediumdue to presence of culturally
significant sites along the route.
The significance is likely to beModerate.
Mitigation measures
 Communicate closely with the affected families.
 Abide by the necessary cultural and legal procedures.
 Provide compensation as stipulated in the Abbreviated Resettlement Action Plan (ARAP)
Impact on Vulnerable households/population
These are people with special needs that would require special consideration and assistance from
project implementers or community in general. They include the elderly, sick (HIV/AIDs
afflicted persons), orphans, women with special needs (e.g. single parents, widows) and farmers
likely to suffer loss of land due to construction of transmission line, substations and related
facilities (whether owners, encroachers or tenants). These groups are being identified as
particularly vulnerable so that special attention would be paid to them by identifying their needs
from the baseline study. The household survey identified different categories of vulnerable
people as shown in Table 39. The level of impact significance is shown in Table 40.
Table 39 Vulnerable Households and Population
S/n Type of vulnerability Number
1 Elders (Above 60 years old) with physical disability (Blind) 03
2 Widow (Female Headed household) 03
3 Elder with physical disability due to stroke – an encroacher at Kilungule A 01
in Kimara ward
4 An orphan – owner of the incomplete structure at Kilungule B mtaa in 01
Kimara ward – He is currently living in Iringa
Total 08
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Table 40 Impact Significance on vulnerable groups
Impact Land acquisition and resettlement impact on vulnerable households and people
Acquiring land and properties would result in negative impact for affected vulnerable
Impact Type Direct .
groups. Indirect Induced
The impact is direct to the affected population (formal and informal owners and
settlers).
Impact Duration Tempo Short-term Long-term Permanent
rary has the potential to have a lastingeffect.
Impact
The impact is limited within the local
ImpactScale villages.
The impact scale is medium.
Impact Frequency The Impact will occur once prior to commencement of the construction phase.
Impact Magnitude Posi Negligible Small Medium Large

tive
The impact magnitude is likely to be Medium.
Receptors The vulnerability of receptor is likely to be medium.
Significance Neglig Minor Moderate Major
ible
The significance is likely to be moderate.
Mitigation measures
 Provide Income Restoration Program for Vulnerable households
 Provide assistance on how to go through the compensation process.
Loss of residential structures
There will be an impact of loss of about 14 residential structures that will be caused by the
construction of the proposed project. Among these, 11 houses are located at Kibo Mtaa in
Ubungo ward and three structures which are considered as encroachers are located within the
way leave of power transmission line, one at Kilungule A in Kimara ward and two houses are
located at Kimara Baruti. Types of houses to be affected are largely the common semi urban
houses cement blocks with corrugated iron sheets as roofing materials. Among the 14 affected
residential structures 12 are used as residents for the owner of the house and two in Kimara
Baruti are used with tenants and therefore a source of income for the owner. Photo 10, shows
some of the structures to be affected by the project at Kibo mtaa in Ubungo ward and Kilungule
A in Kimara ward. The significance in relation to loss of land and structures is in Table 41.
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Photo 10: Some of residential structures to be affected at Kibo mtaa in Ubungo ward
Source: Field survey, EARG Team, 2020
Table 41: Impact Significance of loss of land and structures

Impact Land acquisition and resettlement impact
Land acquisition at Kibo in Ubungo would result in negative impact for those affected
in terms of loss of land and structures.
The impact is direct to the affected population (formal and informal owners and
settlers).
rary
The impact is permanent.
The impact is limited within the local community at Mtaa level.
Scale Frequency
Impact The impact will occur once prior to commencement of the construction phase.
Impact Posi Negligible Small Medium Large

Magnitude tive
ible significance is likely to be moderate.
The
Source: JICA Study Team, 2018
Mitigation measures
 Conduct land acquisition process in accordance with the Abbreviated Resettlement Policy
Framework
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 Provide income restoration for those who will lose their livelihood due to land acquisition.
 Keep constant and open communication with PAPs and other stakeholders
 Provide assistance to vulnerable groups on how to go through the compensation process
 Set up a grievance mechanism to address any concern
Loss of public properties (Toilet facilities and Fencing)
The public properties likely to be affected by the project include structures and land that are
publicly owned, used or controlled, example by a government authority, such as a school, health
center or sports field; and those that are actually private, but serving a community purpose, such
as a place of worship, a private clinic or a private school. Although the proposed power
transmission line will use the existing way leave, its construction will affect toilets at Kilungule
B primary school which has encroached the TANESCO‟s way leave. The toilets to be affected is
shown in Photo 5 are used by 1,818 pupils of which 978 are boys and 840 are girls. The school
has also 39 teachers of which four are males and 35 are females. Furthermore, the project will
affect boundary fences which have been extended to the way leave of the power transmission
line. These fences belongs to the Tanzania Harbours Authority and National Social Security
Fund in Ubungo Kisiwani as well the National Institute of Transport in Mabibo ward. All three
government institutions will lose their boundary fences. If the project needs to demolish these
structures, it will pay replacement cost without depreciation and salvage value at the current
market prices. The toilet facilities and fencing with series of storage facilities are shown in Photo
11 and 12.The impact significance of public properties (toilet facilities and fencing) is shown in
Table 42.
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Photo 11: Toilet facilities at Kilungule Primary School to be affected by the project
Photo 12: Extended wall within the existing power transmission line at Ubungo Kisiwani
Source: Source: Field survey, EARG Team, 2020
Table 42: Impact Significance of public properties (Toilet facilities and Fencing)
Impact Land acquisition and resettlement impact to public properties
Land acquisition at Ubungo Kisiwani and Mavurunza would result in negative
impact for those affected in terms of loss of public properties.
The impact is direct to the affected population (public institution and primary
school).
rary impact is permanent.
The
The impact is limited within the local community at Mtaa.
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Impact The impact will occur once prior to commencement of the construction phase.
Frequency
Impact Posi Negligible Small Medium Large
Magnitude tive impact magnitude is likely to be Medium.
The
ible
Mitigation measures
 Conduct land acquisition process in accordance with the Abbreviated Resettlement Policy
Framework
 Keep constant and open communication with PAPs and other stakeholders
6.3.2.2 Impacts during operation phase

Impact on community health and safety
The number of workers that will be employed during operation of the transmission line and
substation will be very limited compared to construction phase. The New Mabibo Substation
will be manned and operation activities will be limited to maintenance of substation, ROW, and
inspection of transmission lines and towers thus requiring limited manpower (approximately 25
workers). Thus, impact of worker influx during operation phase is considered negligible.
However, there are safety issues with the establishment of new infrastructure such as community
members being in close proximity with transmission towers and substation. There is a risk of
non-workers wandering into project site (e.g. transmission towers and substation) and being
exposed to the hazards which can lead to onsite accidents and injuries. Security personnel will
also be employed during operation phase.
Mitigation measures
 Create awareness on all security and safety issues and hazards associated with transmission
line towers and substation.
 Provide appropriate training for security personnel
 Construct fence around transmission line towers and substation.
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 Provide safety signs.
 Implement a grievance mechanism.

During operation phase, it is anticipated that approximately 10 people will be employed. These
workers, particularly those who will be engaged in the maintenance of substations, ROW, and
inspection of transmission lines and towers will be exposed in health and safety hazards (e.g.
exposure to high voltage facilities). In order to ensure the protection of health and safety of all
the workers, mitigation and management measures will be implemented in accordance with
applicable laws and regulations. The impact significance on accidents, risks and hazards during
operation in Table 43.
Table 43: Significance on accidents, risks and hazards during operation
Impact Impact on occupational health and safety
Risks to health and safety to workers is negative.
The impact is direct to the workers‟ health and safety.
Impact Duration Temporar Short-term Long-term Permanent
yImpact may be short-term but it has the potential to have longer lasting effect.
The impact is limited to workers involved in the project.
Impact Scale The impact scale is Medium.
Impact Frequency The impact is likely to occur during the operation phase with rare frequency.

Receptors The vulnerability of receptor is likely to be medium since workers will be limited during
operation phase and there will be mitigation and management measures in place.

Mitigation measures
 Provide and enforce the proper use PPEs
 Provide health checks to the employees
 Provide training on relevant safety measures, first aid procedures and emergency response to
workers.
 Provide full package of first aid kit at work places
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 Ensure regular maintenance of machines and equipment to minimize oil leakage
6.3.2.3 Impact during decommissioning phase

Positive impacts
Employment
All activities will have to be carried out by people who are paid. Decommissioning activities will
provide short-term employment for drivers, clearing workers, quarry restoration workers etc.
During decommissioning, local workers should be employed to carry out the removal and
clearing activities.
Improved Aesthetics
The site will be restored to its near original state before being handed over the original land
owners.
Negative impacts
Public Health and Safety Risks
As with all work activities, the decommissioning phase will also create health and safety risks to
the public. The risk of spreading communicable diseases is always present irrespective of the
duration of the project activity. Communicable diseases of most concern especially during the
construction phase are sexually transmitted diseases (STDs), and highly contagious disease
outbreaks such as the novel Corona Virus pandemic. The communities and workers are equally
at risk of contracting diseases during the decommissioning phase.
Risks to occupational Health and Safety

Decommissioning will involve use of machinery and equipment that may endanger the lives of
both operators and other workers within the sites. Other issues which could be pertinent to
worker health and safety during the decommissioning phase include risks and hazards associated
with noise and vibration, air quality and personal attacks. Work related stress including long
hours of work and under extreme heat may also affect workers. More details of biophysical and
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socio-economic impacts during decommissioning phase have been discussed in chapter 10.0 on
decommissioning plan.
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6.4 Project Alternatives
In order to make better and informed decisions, consideration of project alternatives that can
enable achievement of the same or better results with less adverse effects including costs is
important. The main factors considered in the selection of alternatives included potentiality of
the option in terms of economic development, location, magnitude of loss and sensitivity of area.
Based on identified project issues and foreseen impacts, the following alternatives are discussed
at this preliminary stage of the EIA process for the proposed project.
The “No Project” Alternative
The no project alternative entails maintaining the current power transmission status by not
upgrading the power transmission to the proposed 220 MW. This alternative if considered will
deny all the positive impacts associated with the proposed upgrading will stagnate anticipated
industrial supplies and reliable power to the area of Mabibo and other targeted area. Therefore,
this alternative is not viable and will not be considered since the country need power to supply to
the expanding demand to feed significant number of newly established industries as the country
is implementing and industrialization scheme to rich middle-income country by 2030.
Connecting the line to the existing Ubungo substation

The proposed project involves construction of new substation at Mabibo area. With the
development of new substation, the transmission line from Kinyerezi will bypass Ubungo
substation and touches some few houses adjacent to Ubungo substation. As an alternative to this
approach the proposed line from Kinyereze T-off point should connect to Ubungo substation and
avoid affecting households adjacent to Ubungo substation and business taking place adjacent to
Ubungo substation. However, this alternative does not provide maximum supplies to Mabibo and
other areas targeted by the proposed improvement. The following alternatives shown in Table 44
and Table 45 – 46 were analyzed for the Power Transmission Line and Substation respectively.
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Table 44: Comparison between Alternatives for Transmission Line Routs
Component Social Environment (Resettlement) Natural Environment
Alt-1  Transmission line between Kinyerezi  Transmission line between Kinyerezi P/S – New  The new lands
P/S – Mburahati S/S:total lengths Mburahati S/S between Kinyerezi
:approx. 20 km 1) Kinyerezi P/S – Existing T-Off point at Kimara:74 P/S – T-Off point in
1) New construction along existing Hs are likely affected. Kimara with the
between Kinyerezi P/S – T-Off point in 2) T-Off point at Kimara- KM-06 (Ubungo- length of approx. 7
Kimara: approx..7km Mologoro): 46 Hs are likely affected. km will be newly
2) New construction between T-Off point 3) New construction KM-06 - New Mburahati S/S: developed for the
in Kimara – KM-06 (Ubungo-Morogoro): The new line will be accommodated between ROW.
approx. 1.6km existing 132kV and 220kV within the current ROW.  The new lands
3) New construction along existing power 4) Replacement of the KM-06 – New Mburahati between T-Off point
transmission line between KM-06 S/S: within current operational ROW in Kimara – KM-06
(Ubungo-Mologoro) – Ubungo S/S: 7km with the length of
4) Replacement of the KM-06 (Ubungo- More than 120 Hs are likely affected in total. approx. 1.6 km will
Mologoro) – New Mburahati S/S: 5km be newly developed
for the ROW.
 No new land
acquisition is required
KM-06 - New
Mburahati S/S with
the length of approx.
5 km
Alt-2  Replacement of the existing  Kinyerezi P/S – KM-06: No particular  The project activities
transmission line between Kinyerezi resettlement within currently operation ROW. only limited to
PS – Ubungo SS:13km replace the old
 Replacement of the Ubungo SS –  T-Off point at Kimara – Ubungo S/S: No transmission line and
New Mburahati S/S: 5km particular resettlement within current operation no land acquisition is
ROW. expected. The impact
on the natural
 Replacement of Ubungo S/S – New Mburahati environment is low.
S/S: within current ROW
No particular resettlement.
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Alt-3  Replacement of the existing power  Kinyerezi P/S – Existing T-Off point at  The new lands
transmission line between Kinyerezi Kimara:74 Hs are likely affected. between Kinyerezi
PS – Ubungo SS:13km.  T-Off point at Kimara – Ubungo S/S: No P/S – T-Off point in
particular resettlement within currently Kimara with the
operation ROW. length of approx. 7
 Replacement of Ubungo S/S – New Mburahati km will be newly
S/S: within current ROW developed for the
More than 74 Hs are likely affected in total. ROW.
Alt-4  (New Mabibo S/S)  Transmission line The new lands between
 Transmission line 1), 2) T-Off point in Kimara – New Mabibo S/S: Kinyerezi P/S – Luguruni
1) New construction along existing approx. 7 Hs (South of Ubungo S/S) S/S with the length of
between T-Off point in Kimara – New 3) ・Kinyerezi P/S – Luguruni S/S: 35Hs are likely approx. 15km will be
Mabibo S/S: approx..9km affected. newly developed for the
2) New construction along existing ROW.
between T-Off point in Kimara – Ubungo  New Switchgear construction in Kinyerezi P/S:
S/S: approx..7km No affected Hs within compound.
3) New construction between Kinyerezi More than 7 Hs are likely affected in total (Out of
P/S- Luguruni S/S: approx..15 km Grant Aid scope: 35 Hs are likely affected).
 New Switchgear construction in
Kinyerezi P/S
Alt-5  Transmission line  Transmission line The new lands between
1) New Alignment between T-Off point in 1) New Alignment between T-Off point in Kimara – Kinyerezi P/S – Luguruni
Kimara – KM-06: approx. 2km KM-06: 46 Hs likely affected. S/S with the length of
2) Replacement of KM-06 – Mburahati 2) KM-06 – Mburahati S/S: No particular approx. 15km will be
S/S: 10km resettlement within currently operation ROW. newly developed for the
3)New construction between Kinyerezi 3) Kinyerezi P/S – Luguruni S/S: 35Hs are likely ROW.
P/S – Luguruni S/S (Out of Grant Aid affected (Out of Grant Aid scope)
scope): approx. 15km  Connection to the Ubungo S/S: No particular
 Connection to Ubungo S/S resettlement within currently operation ROW.
More than 46 Hs are likely affected in total. (Out of

Grant Aid scope: 35 Hs are likely affected).
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Alt-6  Transmission line (triple circuits &  Transmission line  The project activities
Proposed double circuits) 1), 2) T-Off point in Kimara – New Mabibo S/S: only limited to
project with 1) New construction along existing approx. 7 Hs (Only in the area where new ROW replace the old
New Mabibo between T-Off point in Kimara – New required at South of Ubungo S/S) transmission line and
S/S Mabibo S/S replacing existing no land acquisition is
transmission facilities: approx..9km  New Switchgear construction in Ubungo S/S: expected. The impact
2) New construction along existing No particular resettlement within currently on the natural
between T-Off point in Kimara – Ubungo operation ROW. environment is low.
S/S replacing existing transmission  New Switchgear construction in Kinyerezi P/S:
facilities: approx..7km No particular resettlement within currently
operation ROW.
Ubungo S/S Approx.7 Hs are likely affected in total.
Kinyerezi P/S
Source: JICA Study Team 2020
Table 45: Alternative Comparison on Overall evaluation of the Transmission Routs

Evaluation Requested Alt 1 Alt 2 Alt 3 Alt.4 Alt. 5 Alt. 6
Transformer Cost C A B A B C A
Transmission line cost B B- A B- C C C
Land constraint at A A A C A A B
Existing Substation
Ease of ROW B C- A C B B B
Acquisition
Power evacuation B A B B A A A
During construction
Ease of O&M B A A A B A B
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Reliability C A C- A B B A
Overall(Points) 19 - - 20 23 23 25
【Note】Evaluation was made and calculated as A:Excellent(5 points), B:Very Good(3 points), B-: Good (2 points), C: Acceptable(1 point),
C-: Fail. Since C- is a fatal problem, alternative with C- evaluation are excluded from the comparison.
Table 46: Comparison between Alternatives for Substation Constructions
Project Component Social Environment Natural Environment
(Resettlement)
Alt. 1  New Construction of Mburahati Mburahati Substation: 56 Hs
 The Mburahati substation site is sloped and
Substation：Approx. 2 ha（65 m×307 m） needs to be examined to prevent
landslides and runoff.
Alt. 2  New Construction of Mabibo Substation: Mabibo Substation: 0 Hs  Substation site is sloped and needs to be
(Proposed） Approx. 2.5 ha examined to prevent landslides and
runoff.
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6.5 Proposed Mitigation measures
Impact mitigation involves undertaking mitigation or enhancement activities during
mobilization, construction, and operation phases of the project to minimize the predicted impact.
These activities are designed to eliminate, offset, or reduce adverse environmental impacts to
acceptable levels and enhance positive ones. Mitigation measures are incorporated as part of the
environmental management plan which describes the mitigation management required to ensure
proper implementation of agreed mitigation measures and verification of predicted
environmental impacts (Brew and Lee, 1996).
This section summarizes the impact mitigation/enhancement options developed after analysis of
the impacts in chapter six; these measures will further be incorporated in the Environmental
management plan chapter eight and environmental and social monitoring plan chapter 9 of this
document. It is anticipated that the measures will guide the contractor in safe guarding the
environment; similarly the developer will set aside funds to implement the mitigation and
enhancement measures highlighted.
6.5.1 Mitigation and management measures on biophysical environment
Negative impacts during construction phase

1. Impaired water resources quality
 Restricts the distance of towers away from the rivers and streams
 Prohibit and enforce measures to minimize pollution of surface water
 The storage areas for batteries and waste in substation and other storage areas will
be surrounded by containment/spill control measure to prevent spilled oil, fuel
and chemicals from percolating into the ground or reaching the receiving waters.
 Position all drainage/tanks, etc. on concrete hard standing to prevent any seepage
into ground.
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 Prepare standard operation procedures (SOPs) to manage any oil spills, leaks
and/or seepages. .
2. Impaired local air quality

 Specify transport networks and locate stockpiles as far body parts of trucks at all
exits of the construction site;
 Control the height of unloading the fill materials during filling as far as possible;
 Compact the reclaimed land immediately to avoid fugitive dust emissions;
 Maintain and check the construction equipment regularly
 Switch off engines when not in use
 Use sprinkle loose surface earth areas with water to keep dust levels down.
 Cover and contain construction materials in trucks and storage places
3. Increased noise disturbances and vibration
Mitigation and management measures
 Maintain equipment and vehicles to manufacturers‟ standards;
 Limit operating times to daylight hours;
 Close and turn off plants, compressor, generator and engine compartment doors
when not in use;
 Avoid use of particularly noisy plant early in the morning
 Plant maintenance operations will be undertaken at distance from noise-sensitive
receptors;
4. Solid and liquid wastes generation and improper waste management
Mitigation measures
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 Pursue the policy of Four R‟s – Recover, Recycle, Reduce and Reuse – to manage
its waste.
 Provide training to laborers for waste disposal in designated areas and use of
sanitation facilities.
 Implement proper storage of the construction materials and wastes to minimize
the potential damage or contamination of the materials.
 Segregate hazardous and non-hazardous waste and provide appropriate containers
for the type of waste type.
 Store waste systematically to allow inspection between containers to monitor
leaks or spills.
 Ensure that storage areas have impermeable floors and containment.
 Dispose of waste by licensed contractors
Impacts during operation phase

1. Impaired water resources quality
 The storage areas for batteries and waste in substation and other storage areas will
be surrounded by containment/spill control measure to prevent spilled oil, fuel
and chemicals from percolating into the ground or reaching the receiving waters.
 Position all drainage/tanks, etc on concrete hard standing to prevent any seepage
into ground.
 Prepare standard operation procedures (SOPs) to manage any oil spills, leaks
and/or seepages.
2. Increased noise disturbances and vibration
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 Install portable barriers to shield compressors and other small stationary
equipment where necessary.
 Well-maintained equipment to be operated on-site;
 Ensure regular maintenance of equipment such as lubricating moving parts,
tightening loose parts and replacing worn out components;
 Orientate equipment known to emit noise strongly in one direction so that the
noise is directed away from receptors far as practicable; and
 Avoid transportation of materials on- and off-site through existing area
5. Solid and liquid wastes generation and improper waste management

 Education to workers on site shall be undertaken to avoid, reduce and reuse
wastes generated.
 Sited and signpost waste storage facilities in the project site.
 Manage and dispose all waste collected in accordance with the required
regulations.
Socio-economic impact assessment
Positive impacts during construction phase
6. Improved employment opportunities and local economy

 Develop and implement a local recruitment and procurement management plan.
 Consult with relevant stakeholders, including government authorities, especially
mtaa and ward leaders in developing the local recruitment plan.
 Inform mtaa and ward leaders of job opportunities in a timely manner.
 Inform local businesses of contracting opportunities in a timely manner such as
awareness on forthcoming investment and employment opportunities such as food
vendors.
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Positive impacts during operation phase
7. Improvement in Quality, Reliability and Efficiency of power supplied
 Ensure project is timely implemented to realize the benefits
 Increase income to the country
 Improve life standards of the people
 Ensure the growth of the city and town
Mitigation and management of negative impacts construction phase
8. Impact on community health and safety

 Train all workers on the transmission routes and common symptoms of
communicable diseases as well as sensitization of enforcement of HIV/AIDS
law and regulations.
 Establish a workforce code of conduct. Include in the code specific measures on
anti-social behaviour.
 Provide onsite health care
 Prepare emergency management procedures, should a health issue escalate and
require a rapid response.
.
 Provide and enforce proper use PPEs
 Provide health checks to the employees
 Provide training on relevant safety measures, first aid procedures and
emergency response to workers.
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 Provide full package of first aid kit at work places
 Monitor implementation of the training over time
 Provide safety signs
 Ensure regular maintenance of machines and equipment to minimize oil
leakage
 Create awareness on all security and safety issues and hazards at the site
9. Destruction of graves and graveyard
Mitigation measures
 Communicate closely with the affected families.
 Abide by the necessary cultural and legal procedures.
 Provide compensation as stipulated in the Abbreviated Resettlement Action
Plan (ARAP)
10. Impact on Vulnerable households/population
Mitigation measures
 Provide Income Restoration Program for Vulnerable households
 Provide assistance on how to go through the compensation process.
11. Loss of residential structures
Mitigation measures
 Conduct land acquisition process in accordance with the Abbreviated
Resettlement Policy Framework.
 Provide income restoration for those who will lose their livelihood due to land
acquisition.
 Keep constant and open communication with PAPs and other stakeholders
 Provide assistance to vulnerable groups on how to go through the compensation
process
 Set up a grievance mechanism to address any concern
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 Loss of public properties (Toilet facilities and Fencing) Conduct land
acquisition process in accordance with the Abbreviated Resettlement Policy
Framework
 Keep constant and open communication with PAPs and other stakeholders
 Set up a grievance mechanism to address any concern
Mitigation and management of negative impacts operation phase

5.8. Impact on community health and safety
 Provide appropriate training for security personnel
 Create awareness on all security and safety issues and hazards associated with
transmission line towers and substation.
 Construct fence around transmission line towers and substation.
 Provide safety signs.
 Provide and enforce the proper use PPEs
 Provide health checks to the employees
 Provide training on relevant safety measures, first aid procedures and
emergency response to workers.
 Ensure Regular maintenance of machines and equipment to minimize oil
leakage
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7.0 ENVIRONMENTAL AND SOCIAL MANAGEMENT PLAN (ESMP)
7.1 Introduction
Through a systematic assessment, the EIA has identified a number of significant environmental
and social impacts which may potentially result from the construction and operation of the
Project. In order to manage and mitigate these impacts, a range of measures have been developed
to reduce the overall residual impacts to acceptable levels and as low as reasonably practicable.
Implementing and tracking the effect of these management and mitigation measures is an
essential element to ensuring that the assessed residual impact levels are confirmed.
The key objectives of this Environmental and Social Management Plan (ESMP) are to:
 Collate the various mitigation and management measures developed throughout the EIA
into a single point;
 Identify implementation mechanism (e.g. responsible entities, financing sources,
monitoring and reporting requirements) to ensure actual implementation of all mitigation
and management actions throughout the various phases of the Project;
 Define monitoring requirements to determine the efficacy of all mitigation and
management measures; and
 Provide clarity to all stakeholders as to what impacts have been identified, how they will
be mitigated and managed, and through what means.
7.2 Modalities of implementation of the ESMP
TANESCO, together with its contractors, will be responsible for ensuring that mitigation
measures in the ESMP are implemented throughout the life span of the project. The modalities of
implementation of the proposed ESMP will have to be agreed with TANESCO.
Learning from experience in other project that TANESCO is undertaking, the monitoring
activities have been partly contracted to supervising consultants. In this modality TANESCO and
supervising consultant establishes a kind of consortium or collaborative organization involving
key staff on engineering, environmental and social components working closely with counterpart
staff from TANESCO. Data and reports on monitoring activities are reviewed and approved by
TANESCO while requirements of the financiers are taken on-board.
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7.3 Overall roles and responsibility of the parties
The primary role and responsibility for implementation of the ESMP lies on TANESCO and its
contractors. Regulators will have to make sure that the project proponent and the contractor are
fully complying to the ESMP. In terms of the implementation of the recommended monitoring
plan as described in Chapter 8, TANESCO staff will be responsible at the local implementation
level, together with the Environmental Unit of TANESCO. TANESCO can as well hire
consultant or any Institution to assist in implementation. Contractors will be responsible for
implementation mitigation measures proposed in the plan and make sure they comply with the
Tanzanian standards while considering requirements of financing agencies.
Based on the outcomes of the EIA, site specific detailed management plans are to be developed
to guide TANESCO and its contractors in implementation of all mitigation and management
measures. The detailed management plans will be leveraged by the contractors in developing
their own management plans.
The role of the regulator, in this case NEMC, will be following up to ensure the conditions of the
issued certificates as well as the issues pointed out in the ESMP are comprehensively
implemented and addressed by the proponent. Similarly NEMC will be receiving self-monitoring
reports covering compliance of the issues indicated in the ESMP.
7.3 Management plans

Mitigation planning involves undertaking activities during the design, implementation and
operation phases of a project to eliminate, offset, or reduce adverse environmental impacts to
acceptable levels. The proposed impact mitigation/enhancement plan for the project is
summarized in Table 47. The developer has to set aside source of funds to deal with some of the
mitigation measures before project implementation starts, as most of the mitigation activities
need to be incorporated within the various stages of project implementation.
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The developer must integrate the cost of implementing these mitigation measures into the overall
project cost. However, since some of the measures are expected to be implemented by the
relevant local and central government institutions, the cost for such measures will be borne by
the relevant institutions and/or shared with the develop. For example, the need to improve and
upgrade social services within the project area, provision of security organization and judiciary
in order to allow the existing systems to cope with expected changes resulting from project
implementation. The central government will be responsible for undertaking such measures.
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Table 47: Environmental and Social Management Plan (ESMP) for the Proposed Kinyerezi T – Off Point to the New Mabibo
Substation Transmission Line
Affected Project Activity and
Potential Impacts Proposed Mitigation/Enhancement Measures Responsible Entity Costs
Aspect Affected Area
Site Preparation and Construction Phase

Water Tower and substation  Impact on surface and  Restrict the distance of towers away from the rivers and streams TANESCO 5,000 USD
Resources construction ground water quality  Prohibit and enforce measures to minimize pollution of surface
water
 Avoid construction works/excavations during rainy season
 Surround the storage areas for batteries and waste in substation
and other storage areas with containment/spill control measure.
 Position all drainage/tanks, etc. on concrete hard standing to
prevent any seepage into ground.
 Establish Guidelines and procedures for immediate clean up
actions following any spillages of oil, fuel or chemicals.
 Prepare standard operation procedures (SOPs) to manage any
oil spills, leaks and/or seepages.
Air  Site clearance,  Impact on local air  Specify transport networks and locate stockpiles as far body 15,000 USD
site formation quality parts of trucks at all exits of the construction site; Contractor
and levelling  Control the height of unloading the fill materials during filling Engineer
involving as far as possible;
excavation and  Compact the reclaimed land immediately to avoid fugitive dust OSHA
backfilling; emissions;
 Construction of  Maintain and check the construction equipment regularly;
substations and  Switch off engines when not in use
transmission  Use sprinkle loose surface earth areas with water to keep dust
towers. levels down.
 Cover and contain construction materials in trucks and storage
places
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Noise and  Operation of  Generation of noise and  Maintain equipment and vehicles to manufacturers‟ standards; 5,000 USD
Vibration construction vibration  Limit operating times to daylight hours; TANESCO
equipment and  Close and turn off plants, compressor, generator and engine Contractor
machineries. compartment doors when not in use;
 Avoid use of particularly noisy plant early in the morning Engineer
 Plant maintenance operations will be undertaken at distance OSHA
from noise-sensitive receptors;
Wastes  Wastes generated  Solid and liquid waste  Pursue the policy of Four R‟s – Recover, Recycle, Reduce and TANESCO 30,000 USD
from construction management Reuse – to manage its waste. Contactor
sites  Provide training to labourers for waste disposal in designated Engineer
areas and use of sanitation facilities. District/municipal
 Implement proper storage of the construction materials and
engineer
wastes to minimise the potential damage or contamination of
the materials.
 Segregate hazardous and non-hazardous waste and provide
appropriate containers for the type of waste type.
 Store waste systematically to allow inspection between
containers to monitor leaks or spills.
 Ensure that storage areas have impermeable floors and
containment.
 Provide adequate litter bins at work place
 Treat and discharge waste water to meet Tanzania water quality
standards
 Raise awareness to workers/staff on environmental and safety
issues
 Connect to available urban liquid waste system or establish own
treatment system in major cities and towns
Employment  Site clearance, Increased employment  Develop and implement a local recruitment and procurement TANESCO 10,000 USD
site formation opportunities management plan. Contractor,
and levelling  Consult with relevant stakeholders, including government Ubungo Municipal
involving
authorities, especially mtaa and ward leaders in developing the council
excavation and
local recruitment plan.
backfilling;
 Construction of  Inform mtaa and ward leaders of job opportunities in a timely
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substations and manner.

transmission  Inform local businesses of contracting opportunities in a timely
towers. manner such as awareness on forthcoming investment and
employment opportunities such as food vendors
Community Influx of workers  Potential increase in  Train all workers on the transmission routes and common 20,000 USD
health, safety into the area communicable and symptoms of communicable diseases as well as sensitization of TANESCO
and security Sexually Transmitted enforcement of HIV/AIDS law and regulations. Contractor,
Diseases (HIV/AIDS  Establish a workforce code of conduct. Include in the code
and STD‟s) and COVID specific measures on anti-social behaviour.
19  Provide onsite health care Ubungo Municipal
 Change in behaviour  Implement measures for COVID 19 infections council
 Security issues  Prepare emergency management procedures, should a health
issue escalate and require a rapid response.
Accidents, Site clearance,  Risks to health and  Provide and enforce of the proper use PPEs 10,000 USD
risks and construction, safety of workers on site  Provide health checks to the employees TANESCO
hazards maintenance and  Provide training on relevant safety measures, first aid Contractor
operation activities procedures and emergency response to workers.
Engineer
 Monitor implementation of the training over time OSHA
 Ensure regular maintenance of machines and equipment to Uungo Municipal
minimize oil leakage Council District
 Create awareness on all security and safety issues and hazards councils
at the site
Cultural Site preparation and Destruction of  Communicate closely with the affected families. TANESCO 4,000 USD
Heritage construction graves/graveyard;  Abide by the necessary cultural and legal procedures.
activities  Provide compensation as stipulated in the Abbreviated Ubungo Municipal
Resettlement Action Plan (ARAP council
Land acquisition Loss of land and residential  Provide Income Restoration Program for Vulnerable households 10,000 USD
Vulnerable structure  Provide assistance on how to go through the compensation
people
process
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Land and Land acquisition Loss of land and residential  Conduct land acquisition process in accordance with the TANESCO 300,000 USD
Residential structure Abbreviated Resettlement Policy Framework
Structures  Provide income restoration for those who will lose their Ministry of Land
livelihood due to land acquisition. and Human
 Keep constant and open communication with PAPs and other Settlement
Development,
stakeholders
 Provide assistance to vulnerable groups on how to go through Ubungo Municipal
the compensation process council
 Establish a grievance mechanism to address any concern
Operation Phase
Accidental releases  Impact on surface and  Surround the storage areas for batteries and waste in substation TANESCO 20,000 USD
Water from operational groundwater quality and other storage areas with containment/spill control measure.
Resource activities at the sub  Position all drainage/tanks, etc on concrete hard standing to
station prevent any seepage into ground.
 Establish Guidelines and procedures for immediate clean up
actions following any spillages of oil, fuel or chemicals.
 Prepare standard operation procedures (SOPs) to manage any
oil spills, leaks and/or seepages.
Machines operation Generation of noise and  Install portable barriers to shield compressors and other small
Noise and during operation vibration stationary equipment where necessary.
vibration phase  Well-maintained equipment to be operated on-site;
 Ensure regular maintenance of equipment such as lubricating
moving parts, tightening loose parts and replacing worn out
components;
 Orient equipment known to emit noise strongly in one direction
so that the noise is directed away from receptors far as
practicable; and
 Avoid transportation of materials on- and off-site through
existing area
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Wastes Wastes from control  Generate solid and  Educate workers on site to avoid, reduce and reuse wastes TANESCO 5,000 USD/year
room and substation hazardous wastes generated.
 Site and signpost waste storage facilities in the project site.
 Manage and dispose all waste collected in accordance with the
required regulations.
Power Project operation Increased power supply  Increase income to the country TANESCO 5,000 USD
supply  Improve life standards of the people
 Ensure growth of the city and town
Community Presence of new  Onsite accidents and  Provide appropriate training for security personnel TANESCO 50,000 USD
Health, infrastructure injuries  Monitor implementation of the training over time
Safety and  Create awareness on all security and safety issues associated
Security with transmission line towers and substations
 Construct fence around transmission towers and substations.
 Implement grievance mechanism
Accidents, Construction,  Risks to health and  Provide training on relevant safety measures, first aid TANESCO 50,000 USD
risks and Maintenance and safety of workers on site procedures and emergency response to workers. Contractor
hazards operation activities
 Provide full package of first aid kit at work places and workers‟
camps
 Provide and enforce the proper use PPEs
 Provide health check to the employees
 Provide training on occupational health and safety
 Monitor training over time
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8.0 ENVIRONMENTAL AND SOCIAL MONITORING PLAN
8.1 Introduction
This chapter provide an environmental and social monitoring plan for the proposed transmission
line from Kinyerezi T off point to New Mabibo Substation. The mitigation plan and the
monitoring plan together constitute the Environmental Management Plan (EMP) for the
proposed development.
Monitoring refers to the systematic collection of data through a series of repetitive measurements
over a period of time to provide information on characteristics and functioning of environmental
and social variables in specific areas over time. Monitoring must include checking for
effectiveness of mitigation and enhancement measures to deal with the predicted impacts of a
particular project.
EMA No. 20 of 2004 defines roles for monitoring where the National Environment Management
Council (NEMC) is empowered to enforce compliance to the environmental permits (Certificate)
issued prior to development and follow in monitoring to ensure implementation of the
Environmental Management Plans (EMP). NEMC therefore is required to conduct monitoring
activities in collaboration with relevant sectors and other stakeholders.
There are different types of monitoring conducted in various project undertaking, these include;
 Baseline monitoring: the measurement of environmental parameters during a pre-project

period and operation period to determine the nature and ranges of natural variations and
where possible establish the process of change. Baseline monitoring for this project
would entail observation of the types and rate of changes on the baseline conditions that
has been identified in Chapter 4 which represent conditions prior to the start of the
project.
 Impact/effect monitoring: involves the measurement of parameters (performance
indicators) during construction, operation and decommissioning phase in order to detect
and quantify environmental and social change, which may have occurred as a result of
the project.
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 Compliance monitoring: takes the form of periodic sampling and continuous
measurement of levels of compliance with standards and thresholds – e.g. for waste
disposal, air pollution, noise and vibration level. The monitoring for this project would
mean collecting data on key parameters and compare them with national and international
standards as provided in this report or other government notices.
 Mitigation monitoring aims to determine the suitability and effectiveness of mitigation
measures and programmes, designed to diminish or compensate for adverse effects of the
project. In this project, monitoring for this component would entail auditing the
effectiveness of the mitigation measures to ascertain whether changes are needed to
enhance best practices.
8.2 Monitoring Plan
Monitoring is a means verifying overall effectiveness of the management and mitigation
measures contained within the management plans described in Chapter 8. Key objectives of the
monitoring process are to:
 Confirm effectiveness of management and mitigation measures;

 Ensure compliance with Applicable Standards (i.e. Tanzanian standards, JICA
Guidelines, World Bank Safeguard Policies and IFC EHS Guidelines);
 Monitoring the status of, and impacts on, identified sensitive receptors;
 Provide an early warning that any of the control measures or practices are failing to
achieve their desired performance and ensure changes can be implemented to remedy
these practices;
 Determine whether environmental and social changes are attributable to Project activities,
or as a result of other activities or natural variation; and
 Provide a basis for continual review and improvements to Project design and execution.
Biophysical and social environmental management components of particular significance have
been identified as indicators. A monitoring plan for each indicator has been prepared for all
phases of the Project and is presented in Table 48.
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This includes the tentative parameters to be measured, methods to be utilised, sampling
locations, frequency of measurements, detection limits, cost and responsibilities for
implementation and supervision.
8.3 Reporting arrangement

The reporting system will ensure regular flow of information from the Project site to the Project
headquarters/TANESCO head office and, as necessary, to regulatory authorities and financing
entities. The reporting system will provide a mechanism to ensure that the measures proposed in
the Project's ESMP are implemented.
Prior to the commencement of the construction activities, the project proponent will finalise the
format and frequency for reporting on the status and progress of environmental and social
monitoring. Records of monitoring results should be kept in an acceptable format an easily
accessible, and information reviewed and evaluated to improve the effectiveness of the
environmental management plan. The results should be reported to the responsible authorities
and relevant parties, as required by NEMC.
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Table 48:Environmental and Social Monitoring Plan for the Proposed Transmission Line from Kinyerezi T – Off Point to the
New Mabibo Substation
Project
Stage/ Parameters to be Means of
Potential Impact Location Frequency Responsibility Cost (USD)
Affected monitored verification/Measurements
Component
Site Preparation and Construction Phase
General Inspection of General compliance Project activity Visual inspection of all active Daily TANESCO 10,000USD
mitigation compliance with mitigation areas and work areas
measures presented in construction
the ESMP workers camp
Water Impaired groundwater pH, temperature, EC, Neighbouring Standard analytical methods  Before TANESCO 10,000 USD
Resource quality TDS, turbidity, total wells and construction
hardness, Cl, SO4+, boreholes activity
NO3-, BOD, COD, starts
Total Coliforms and  Upon
heavy metals (As and Field inspection, measurements request from
Pb) and reports nearby
Refer: IFC General residents.
EHS Guidelines: 1.3
Wastewater and
Ambient water quality
Presence/absence and
use of approved
chemicals
Incidence of water/soil
pollution/contamination
Presence/absence of
functional oil traps and
skimmers
Presence /absence of
schedule of
maintenance
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Project
Component
Level of pollution as
per TZS 860:2006
Ambient Air Dust Generation Dust village(s) close Visual inspection Upon request TANESCO 5,000USD
Refer: to access roads
Air Quality Standards Reports
Regulations in Tanzania
IFC General EHS
Guidelines: 1.1 Air
Emission and Ambient
Air Quality
Noise Noise generation Noise levels Site described in Noise level measurement Upon Request TANESCO 10,000 USD
Refer: the request
Noise Standard
Regulations in Tanzania
IFC General EHS
Guidelines: 1.7 Noise
Waste Solid waste Adequacy of solid 5,000 USD

management waste management
measures (e.g.
appropriate storage,
collection and disposal)
TANESCO
functional mobile
toilets, soak away Waste storage
/septic tanks systems areas
Visual inspection of all waste
collection sites, and
types of solid waste
confirmation of proper disposal
within the wayleave
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Project
Component
Field inspection and reports
coded solid waste
collection bins
Presence/absence of
functional disposal
facility
Presence/absence of
recycling facilities
Weekly
Presence/absence of
functional program to
reduce and recover
solid wastes
Employment Increased employment Number and gender of Affected Reports and surveys Biannual TANESCO and 5,000 USD
opportunities local people employed communities during Ubungo
mobilization, municipal
construction council
Presence/absence of and operation
worker‟s training
programmes
Number of workers
trained based on skills
Type of support
provided
Land and Loss of land and Number of meetings In tandem with TANESCO
residential structure and types of Affected Municipal Land 5,000 USD
Residential mobilization
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Project
Component
Structures information communities and Officer

disseminated construction Chief valuer
Number of affected
persons compensated at
full replacement cost
Presence/absence of
functional grievance
redress mechanism
Number and type of

complains
Incidences and extent of

project activities outside
the core designated area
Community Increase risks, hazards Accidents, incidents Affected Incidents, accidents and Based on TANESCO 5,000 USD
Health and and accidents and complaints communities community complaints occurrence
safety
Accidents, Increased risks, Presence /absence of Project activity Field inspection, measurements Quarterly TANESCO 5,000 USD
risks and hazards and accidents training programmes areas and and reports during
hazards construction mobilization,
Number of certified workers camp
trained staff on safety construction
measures
full packaged and
functioning first Aid
Kits
Presence/absence of
appropriate functional
PPEs
Presence/absence of
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Project
Component
Company enforcement
policy
Presence/absence of
warnings signs
use of approved
chemicals
Near-misses, incidents,
occupational diseases,
dangerous occurrences
Operation Phase
General Inspection of General compliance Project activity Visual inspection of all active Daily TANESCO 5,000
mitigation compliance with mitigation areas work areas USD/year
measures presented in
the ESMP and
operational manual
Waste Solid waste Appropriate collection, Waste collection Visual inspection of all waste Monthly TANESCO 5,000
management transport and sites in collection sites and USD/year
management substations confirmation of proper disposal
Community Increase risks, hazards Accidents, incidents Affected Incidents, accidents and Based on TANESCO 5,000
Health and and accidents and complaints communities community complaints occurrence USD/year
safety
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Project
Component
Accidents, Increase risks, hazards Near-misses, incidents, Project activity As defined in construction As defined in TANESCO 5,000
risks and and accidents occupational diseases, areas and phase Health & Safety Plan to H&S Plan USD/year
hazards dangerous occurrences construction be prepared by the contractor
workers camp
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9.0 COST AND BENEFIT ANALYSIS
JICA Study Team has worked out the economic analysis for the Project for Reinforcement of
Supply from Kinyerezi Power Station. In order to select the most feasible option, six alternatives
were comparatively analyzed on the basis of technical, economic and social-environment
criteria. Those six alternatives are presented in detail in Table below.
Alternatives Major Components

Alternatives - 1. Construction of Mburahati substation (220/132 kV, 200 MVA
1 Transformer×2)
(Alt-1) 2. 220 kV Kinyerezi – Mburahati TL-2cct which are hung on 2cct
towers (Approx. 20 km)
2 Transformer×2)
(Alt-2) 2. 220 kV Kinyerezi (T-off point) – Mburahati TL-1cct which are hung
on 1cct towers (Approx. 12 km)
3 Transformer×2)
(Alt-3) 2. 220 kV Kinyerezi – Kinyerezi (T-off point) TL-1cct which are hung
on 1cct towers (Approx. 8 km)
3. 220 kV Kinyerezi (T-off point) – Ubungo TL-1cct and Kinyerezi (T-
off point) – Mburahati TL-1cct which are hung on 2cct towers
(Approx. 7 km)
4. 220 kV Ubungo – Mburahati TL-1cct and Kinyerezi (T-off point) –
Mburahati TL-1cct which are hung on 2cct towers (Approx. 5 km)
Alternatives - 1. Construction of Mabibo substation (220/132 kV, 200 MVA
4 Transformer×2)
(Alt-4) 2. 220 kV Kinyerezi (T-off point) – Ubungo TL-1cct and Kinyerezi (T-
off point) – Mabibo TL-2cct which are hung on 3cct towers
(Approx. 7.0 km)
3. 220 kV Kinyerezi (T-off point) – Mabibo TL-2cct which are hung on
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2cct towers (Approx. 2.0 km)
4. 220kV Kinyerezi-LuguruniTransmission line (2cct and double
conductor, Approx. 15km)
5 Transformer×2)
(Alt-5) 2. 220 kV Kinyerezi (T-off point) – Ubungo TL-1cct and Ubungo –
Mabibo TL-1cct which are hung on 2cct towers (Approx. 7.0 km)
3. 220 kV Ubungo – Mabibo TL-1cct and Kinyerezi (T-off point) –
4. Reinforcement of one 220/132 kV transformer (150 → 300MVA) at
Ubungo substation
6 Transformer×2)
(Alt-6) 2. 220 kV Kinyerezi (T-off point) – Ubungo TL-1cct and Kinyerezi (T-
off point) – Mabibo TL-2cct which are hung on 3cct towers
(Approx. 7.0 km)
3. 220 kV Ubungo – Mabibo TL-1cct and Kinyerezi (T-off point) –
The assessment period of the economic analysis is 30 years. The lifespan of the line is expected
to be 50 years and the lifespan of the equipment is 30 years. The overall investment costs have
been calculated.
In the economic analysis, the future benefits have been discounted using a 12 % rate in order to
compare the Net Present Value (NPV) of the benefits over the 30 years.
The NPV of the benefits has been calculated on the basis of the following components;
i. Electric supply capacity
ii. Willingness to pay
iii. Submission Cost
iv. Transmission Line cost
v. Operation and management (O&M) cost
The value of Willingness to pay is estimated 0.014 USD/kWh, and the operation and
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management (O&M) costs have been estimated at 0.5%.
The project assumes consideration of two options (Alt-4 and Alt-6) which are narrowed down in
terms of cost, technical and reliability terms etc. as follow.
Option 1 (Alt-4) - Mabibo substation is commissioned in 2025, with 3 years of construction. The
corresponding investment is 3% in 2022, 60% in 2023 and 37% in 2024.
Option 2 (Alt-6) - Mabibo substation is commissioned in 2025, with 3 years of construction. The
corresponding investment is 3% in 2022, 57% in 2023 and 40% in 2024.
The Economic Internal Rate of Return (EIRR) is the value of the discounted rate for which the
NPV of the project is zero. The EIRR for the two options is around 20% hence considered
appropriate.
The benefits were discounted from year 2054 to 2025. The NPV of the two options take into
account the investment, RAP and EISA cost, the Operation and Management cost. The summary
of EIRR and NPV is shown in the table below.
Indicators Option 1 (Alt-4) Option 2 (Alt-6)
EIRR (%) 17 17
NPV (million USD) 21.73 21.26
Resultantly, Option 1 (Alt-4) proved to be slightly more economical, and which comprehensively
outweighs other alternatives when compared on economic aspects. However, Alternative-4 has
the following challenges. Firstly, Alternavie-4 has more dependence on Kinyerezi – Luguruni
lines compared to Alternative-6. Secondly, Kinyrezi - Luguruni lines cannot be covered by
Japan‟s grant aid due to budgetary limitation. If the Project depends on the progress of
Kinyerezi-Luguruni lines, the delay of the lines may cause the delay of the Project. In addition,
Alernative-4 does not have a direct link between Kinyerezi and Ubungo, this may negatively
affect power evacuation from Kinyerezi power station. Ubungo will continue to be the hub of
power supply to Dar es Salaam even if the second grid substation, Mabibo commences operation,
while Kinyerezi is the largest power source in Dar es Salaam and Coast regions. Those two
important points needs to have direct and shortest link to achieve reliable and sufficient power
supply.
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Due to the situation above, TANESCO selected Option 2 (Alt-6) as the most feasible option. The
proposed project will positively contribute to revitalize the industries and economic activities in
Dar es Salaam and improve stable operation of public welfare facilities and healthcare services
as well as the living environment of local residents.
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10.0 DECOMMISSIONING PLANS
This EIA report has mainly focused on the potential impacts and associated mitigation measures
during the construction and operation phase. This section deals with the decommissioning phase
of the proposed project. Decommissioning is a stage where the project or activity of the project is
formally ending.
The proposed transmission line system is expected to operate for at least 40 years before it comes
to an end. The Regulations for Environmental Impact Assessment (URT, 2005) directs
developers to address the implication of decommissioning process as part of the EIA process.
There will be some components of the project that will be closed as soon as their requirement has
come to the end. Activities to be done during decommissioning include, stakeholders
consultation, pre-decommissioning activities and decommissioning activities which will include
demolition of power plant and hauling rubble and waste materials from the demolition. Several
impacts (negative and positive) are likely to occur as result of the decommissioning.
10.1 Stakeholder’s consultation for decommissioning
The project-decommissioning plan will include consultation with various stakeholders including
host communities, nearby facility owners, regulatory bodies and experts. As the Project
approaches the end of its economic viability, plans will be put in place to wind down operations
and maintenance. This will allow for a carefully planned redeployment and, where necessary,
disengagement of personnel as appropriate.
10.2 Pre-decommissioning activities

Prior to engaging in decommissioning works, the proponent will develop a decommissioning
plan in accordance with regulatory requirements at the time of decommissioning.
Decommissioning and restoration activities will be performed in accordance with all relevant
statutes in place at the time of decommissioning.
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10.3 Decommissioning activities
In implementing decommissioning activities, TANESCO will prepare a detailed

decommissioning plan to ensure that environmental and social impacts are minimized in order to
comply with environmental legislations and policy requirements. In decommissioning phase,
TANESCO will form a team of experts with a representative from the relevant national, regional
and local government bodies to monitor the implementation of the decommissioning plan.
At the end of the facilities utility, all equipment will be decommissioned. In general, the
activities to be carried out during the decommissioning phase shall include the following:
i. Dismantling of towers including excavation

ii. Dismantling of all surface equipment including conductors and grounding wires
iii. Removal and disposal of concrete works
iv. Removal and disposal of conductors, etc
10.4 Impacts and mitigation measures

The potential impacts that might result from the decommissioning phase of the proposed project
include:
i. Physical disturbance of the environment arising from the removal of the towers and
ancillary equipment,
ii. Potential hazards/accidents associated with decommissioning activities, and
iii. Waste management problems
The strategy to be adopted for site remediation shall depend on the prevailing biophysical and
social environmental attributes and the attendant impacts that may result from such an action as
discussed in Chapter 6. The following measures need to be planned for implementation after
decommissioning:
 Facilities and ancillary equipment shall be dismantled completely
 All equipment and debris shall be removed from the environment
 Good waste management plan shall be implemented.
iv. Noise and vibration: Sources of noise during decommissioning would be similar to
those during construction and would be caused primarily by construction equipment
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and vehicular traffic. Noise and vibration will occur as a result of movement of heavy
vehicles and machines hauling rubble and waste materials from the demolition.
Vibration may cause effect on nearby structures especially community‟s houses. The
following mitigation measures are suggested:
 TANESCO/Contractor to ensure all decommissioning activities is confined to

core areas.
 TANESCO to ensure there is no unnecessary movement of vehicle.
v. Air Quality: Emissions generated by activities during the decommissioning include
vehicle emissions; diesel emissions from large construction equipment and
generators; and fugitive dust from many sources such as structure removal,
backfilling, dumping, reclamation of disturbed areas (grading, seeding, planting), and
truck and equipment traffic.
vi. Soil Erosion: This is likely to occur during decommissioning as result of movement
of vehicles heavy machines clearing the structures and leveling the project area. The
following mitigation measures are proposed:
 TANESCO/Contractor must to all decommissioning activities are confined to
core areas.
 TANESCO/Contractor to rehabilitate degraded areas with natural vegetation.
vii. Surface run off and surface water quality: This is likely to occur during
decommissioning and especially if it is done during the rainy season. Surface run off
may accelerate soil erosion and increase pollution of water bodies. The following
mitigation measures are proposed:
 TANESCO/Contractor to ensure all decommissioning activities is confined to
core areas.
 TANESCO/Contractor to schedule decommissioning to be scheduled during dry
season.
 TANESCO/Contractor to ensure spoil material from demolished infrastructure is
appropriately disposed away from wetlands, water sources.
 TANESCO/Contractor to undertake site landscaping in disturbed areas.
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viii. Waste generation: The decommissioning of the transmission line will result into
generation of wastes from obsolete materials and unwanted materials. Mechanisms of
identifying, collecting and disposal will be in place to ensure all wastes have been
collected, removed and rightly disposed of. The following mitigation measure is
proposed:
 Equipment and facilities of the substations, transmission towers and lines will
have to be disposed-or removed from the project site.
 Assessing the contents of hazardous materials in control building and
substations.
 Removing them prior to initiation of decommissioning activities, managing
their treatment and disposal.
 Cleaning of zones where necessary
ix. Human Health and Safety: Potential impacts to worker and public health and
safety during decommissioning and site reclamation would be similar to those during
construction; and relate to earthmoving, use of large equipment, dismantling of
industrial components, and transportation of overweight and oversized materials.
x. Land Use: Upon decommissioning, land use impacts resulting from construction
and operation of the power transmission project could be largely reversed depending
on the end use selected for the RoW.
xi. Socio-economics: Direct impacts would include the creation of new jobs for workers
during decommissioning.
xii. Transportation: Short-term increases in the use of local roadways would occur
during decommissioning and site reclamation. Overweight and oversized loads could
cause temporary disruptions to local traffic.
xiii. Water Resources: Water would be used for dust control for road traffic, dismantling
of towers, substations, and other buildings, and for consumptive use by the
construction crew. It might be trucked in from off-site or obtained from local
groundwater wells or nearby surface water bodies, depending on availability.
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11.0 SUMMARY AND CONCLUSION
In accordance with the requirements of the Environmental Management Act, Cap 191 of 2004
and the Environmental Impact Assessment and Audit Regulations of 2005, this EIA Report has
been prepared to identify, assess, and mitigate the potential environmental and social impacts
associated with the proposed 400kV transmission line. This Report was based on the technical
information provided by the developer, existing studies and reports relevant to the Project, site
visit, baseline environmental monitoring and the initial stakeholder engagement.
The proposed Kinyerezi T – Off Point to the New Mabibo Substation transmission line route is
located in Dar es Salaam Region in Ubungo Municipality. The proposed development of power
transmission line from Kinyerezi T – Off Point to the New Mabibo Substation traverses within
covering four wards and seven mtaas, namely Kimara (Mavurunza, Kilungule A and Kilungule
B), Makuburi (Kibangu), Ubungo (Kibo and Ubungo Kisiwani) and Mabibo where the substation
will be located.
The potential impacts have been identified and evaluated for the project on the existing
environment (biophysical, social and health). Mitigation measures have been recommended for
unavoidable impacts considered significant, to reduce the rating of their identified adverse
effects to levels as low as reasonably practicable. Recommendations have also been made to
enhance the benefits of the identified positive impacts. A project-specific Environmental and
Social Management Plan (ESMP) for assessing the effectiveness of the mitigation measures in
controlling identified significant impacts has been recommended.
The EIA has shown that with the implementation of the recommended mitigation measures
embodied in the Environmental and Social Management Plan could be executed and
decommissioned with minimal adverse impacts on the environment. The Projects will result in
substantial economic benefits to the Dar es Salaam economy and Tanzania in general through
increased electric power transmission and distribution. The local communities shall also benefit
immensely from the project through employment opportunities and increased financial flows
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from supply of materials and contracts as well as community development projects that
TANESCO will be committed to put in place.
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12.0 REFERENCE
Alexandra Hill &Christian Lindner (2010), Land-use modeling to support strategic urban
planning - the case of Dar es Salaam, Tanzania; Simulating informal urban growth in Dar es
Salaam, Tanzania 45th ISOCARP Congress 2010.
AMBIO.A Review of Water Quality and Pollution Studies in Tanzania. AMBIO A Journal of
the Human Environment (AMBIO) 31(7-8):617-20 · January 2003 with 2,460 Reads DOI:
10.1579/0044-7447-31.7.617 · Source: PubMed. Publisher: Springer Verlag
Bishoge, O. K and Suntu S.L 2018.Opportunities of Urban Horticulture for Poverty Alleviation
in Dar es Salaam city, Tanzania.A Case study of Ubungo Municipality in Dar es Salaam,
Tanzania.
Dar Es Salaam Master Plan 2012 – 2032. Dodi Moss, Buro Happold, Afri Arch, QConsult,
March 2012.
Doggart, N., 2003. Pande Game Reserve: A Biodiversity Survey. TFCG Technical Paper No
7.DSM, Tz. 1-100pp.
Dongus S. (2000) – Vegetable production on open spaces in Dar es Salaam – Spatial Changes
from 1992-1999. Published by Canada‟s Office of Urban Agriculture. Available at:
http://www.cityfarmer.org/daressalaam.html.
Environmental Zones.The Directorate of Overseas Surveys for the United Republic of Tanzania,
1965. Scale 1: 125 000.
IFC 2012, International Finance Corporation‟s Policy on Environmental and Social
Sustainability
Mkalawa, C.C (International Journal of Urban Planning and Transportation, ISSN:2051-9281,

Vol.31 Issue.1 1138 © RECENT SCIENCE PUBLICATIONS ARCHIVES | September
2016|$25.00 | 27704794|
Mtoni Y., Mjemah I.C., Msindai K., Van Camp M. and Walraevens K. (2012) – Saltwater
intrusion in the Quaternary aquifer of the Dar es Salaam region, Tanzania. Geologica Belgica
15/1-2: 16-25.
Robert M. Njee,Kees Meliefste, Hamisi M. Malebo, Gerard Hoek. Spatial Variability of Ambient
Air Pollution Concentration in Dar es Salaam in Journal of Environment Pollution and Human
HealthVol. 4, No. 4, 2016, pp 83-90. doi: 10.12691/jephh-4-4-2 | Research Article Accessed on
05th March 2020
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The United Republic of Tanzania: Prime Minister‟s Office, Tanzania Commission for Aids.
National HIV and AIDS Response Report for 2017. Tanzania Mainland, June 2017
The United Republic of Tanzania:, 2012. Tanzania Population and Housing Census, 2012
The United Republic of Tanzania:, 2016. Socio-economic Profile of Ubungo Municipal Council
United Republic of Tanzania – URT (2011). Dar es salaam City Environment Outlook. Vice
President‟s Office. Division of Environment.
United Republic of Tanzania, 2014.Dar es Salaam City Council Socio-economic Profile, 2014.
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13.0 ANNEXES
13.1 Terms of References for Undertaking Environmental Impact Assessment for the
proposed construction of 9km of 220kv Transmission line from Kinyerezi T – Off Point to
the New Mabibo Substation, Dar Es Salaam
Background of the Project The Government of Tanzania in collaboration with the Japan
International Cooperation Agency (JICA) through Tanzania Electric Supply Company Limited
(TANESCO) are in the plan to construct a new 220kV transmission line from Kinyerezi T-off
Point to the new 220/132kV substation near Mabibo area. This unique project will involve
construction of a new substation and triple circuit towers from Kinyerezi T-off point to Ubungo
substation (7km) and double circuit towers from Ubungo substation to Mabibo substation (2km).
The proposed transmission line is estimated to cover a distance of 9km. The project will utilize
existing way-leave of Morogoro two (MG2) and existing Ubungo Ilala way-leave on the second
portion of the line, the new substation will be constructed on the existing way-leave corridor near
Mabibo market and National Institute of Transport (NIT). Therefore, no new land will be
acquired for construction of the transmission line and the substation; rather the existing
transmission line will be demolished and replaced with the new one. However, the MG2
wayleave was acquired long time ago since 1960s before EMA came into force; the project has
no EIA certificate which is the same to the Ubungo – Ilala wayleave.
centerline. The preliminary survey reveals that, there are several ongoing human activities at the
project site. It was noted that the area near Ubungo substation has few residential houses and few
mobile shops which will be affected during project construction. Although these activities are
done illegally since the wayleave is the property of TANESCO but it was found important to
seek the best way to deal with them. These includes graveyards near Ubungo Maziwa and in
Kimara Mavurunza, few mobile shops and small vegetable gardens near Urafiki textile industry
and few pedestrian ways.
Gas pipelines and water pipelines were found using the same corridor however; a detailed report
will be prepared by the responsible parties i.e. DAWASCO and TPDC to avoid damage to
existing infrastructure. Since the line is planned to use existing wayleave the environmental and
social impacts are expected to be minimum however, proper attention including stakeholder‟s
engagement is of paramount important. The site can be reached through existing nearby road
infrastructures this includes Mandela and Maziwa roads in Ubungo and Kimara Mavurunza road
on Kimara side.
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Rationale of the project
Dar es Salaam is a fast growing city in Tanzania in terms of social and economic development.
The fast growth of the city is the result of a number of factors that include expansion of industrial
base within the city, population growth, development of new structures including tall buildings
and expansion of transport infrastructures such as railway (SGR), road network and expansion of
Julius Nyerere International Airport terminal three among others. The combination of economic
growth, housing and population growth, income growth and social development have all
contributed to the increased demand for electricity consumptions hence requiring reliable supply
of power. Ubungo Substation is mostly considered as the mother or primary grid substation to
supply power to the other substations around the city. Ubungo Substation is receiving 220kV
from MG1 and MG2 lines, and from the following power plants: Kinyerezi (220kV), Ubungo
one (220kV), Ubungo two (132kV) and Songas (132kV) and then supplying power to other
substation in Dar es Salaam.
The overdependence on Ubungo Substation has sometimes brought difficulties in planning for
maintenance services and any technical problems can result to collapse of the national grid.
Therefore, the construction of new Mabibo 220/132kV substation will reduce overdependence to
Ubungo substation and ensure power security to the national grid and to the city of Dar es
salaam. By considering the unforeseen impacts to the national grid that might arise from any
technical failure on Ubungo Substation the construction of new Transmission line and the
substation to evacuate power from Kinyerezi Power plant is of vital importance.
Project Components
The proposed project will involve construction of a new substation and triple circuit towers from
Kinyerezi t-off point to Ubungo substation (7km) and double circuit towers from Ubungo
substation to Mabibo substation (2km). The major components of this project are 220/132KV
Substation and Transmission line.
Transmission Lines
The Transmission line consisting of series of towers of different type and insulator will run a
total length is 9km with 220/132kV triple circuit conductors from Kinyerezi T-off point to
Ubungo Substation (7km) and double circuit conductors from Ubungo S/S to Mabibo area
(2km). Since there is no designed standard for way leave size for triple circuit conductors and
towers it was recommended to use 40m size ROW which will cover 20m wide on the both sides
from the centerline however, the size might change to suit the project design. The proposed
transmission and substation will utilize the existing way leave to avoid relocation of people and
expensive compensation therefore No additional land will be acquired for the proposed project.
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Substation
The project will involve construction of new 220/132kV substation at Mabibo area near to the
Institute of Transport (NIT). The new 220/132kV substation is proposed to have 200 MVA
transformer x2 of hybrid type, the substation is designed within the area of 50m x 500m. The
substation area is planned to be within the ROW of transmission line between Mabibo Market
and compound of National Institute of Transport. No addition land acquisition is expected for the
substation. Facilities expected at substation are control building with switch gear, transformers,
reactors and officers. Materials and Other Utilities.
Materials and Other Utilities
Matrials required includes materials for civil works (foundation for transformers and reactors),
transformers and reactors. Other utilities required include protection systems are needed for main
and back-up in case of unexpected system failure, Communication and SCADA System and
Firefighting System.
Project Activities
As part of project implementation, this project will involve several activities categorized into
different phases as explained below:
Mobilization phase
The project activities during mobilization phase include mobilization of human resources,
designing of the structures, obtaining various permits that include environmental permits,
mobilization of resources, and importation of machinery and purchase of various construction
materials. Mobilization entails establishing work camp and offices on the site, assembling
equipment, construction work force as well as materials. Work camp will be established to
provide shelter and storage facilities for construction material, fuel and lubricants, workshops,
logistics and offices for less than 5 months during the construction period.
Construction Phase
The Construction phase will include excavation of tower foundations, erecting the towers,
stringing of conductors and securing the site and construction of facilities for the substations and
transformers as needed. Machines and manual labor will be involved in the construction phase.
Some areas will require preparation of the access roads to bring equipment, workforce and
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materials to the designated sites. Appropriate measures for mitigation will be considered
according to the Environmental Management Plan (EMP). Some labor forces may be recruited
from local communities - especially for the simple and manual operations that could easily be
accomplished using local skills. The construction phase is estimated to take roughly about 12 to
24 months.
Operation Phase
During operation, the power line will function as required with monitoring, repair, and
maintenance of the transmission line and substation and taking corrective actions in case of
accidents and emergencies. Maintenance of 220 kV transmission line, safety management of the
line maintenance and safeguard of the RoW will be done in the operation phase
Decommissioning Phase When the transmission line and substation becomes unusable from
reasons, decommissioning of the transmission line and substation may be carried out in the EMP
to be made as a part of the Environmental Impact Assessment report. The main issues of concern
will be removal and handling of cleared materials. Others issues include noise and dust level due
to demolition of structures and restoration of the area. Decommissioning will involve the
demolition of the structures and rehabilitating the land on which the structures were established
to its original condition.
Objectives of the Terms of Reference
The objective of these Terms of Reference (ToR) is to ensure a comprehensive and participatory
Environmental Impact Assessment (EIA) for the proposed development is undertaken. The ToR
outlines activities, methodology to be followed and expected output.
Activities to be undertaken in this EIA
A multi-disciplinary team will undertake full EIA addressing the following activities: Task 1
Project Description: The consultant will give details of the following:
i. Activities to be carried out in each phase of the project;

ii. The purpose and objectives of the proposed development should be clearly stipulated;
iii. Adequate description of size, scale and design of the project;
iv. Types and quantities of material and inputs needed during mobilization, construction and
operational phases;
v. The types and quantities of wastes and residual materials and the rate at which these will
be produced;
vi. The description of methods used to make estimations of waste generated, and the
proposed methods of waste treatment and disposal;
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vii. Estimated Project capital cost and source of funds.
Task 2: Description of the Environment (baseline data)

Under this task the consultant will give description of:
i. The location and area of land affected by the development. This should also be on maps
and the current land uses of the area should be clearly identified;
ii. Definition of project-affected site should be broad enough to include any potential effects
occurring away from the construction site (e.g. dispersal of pollutants, traffic, changes in
channel capacity of water sources as a result of increased surface run of etc.); Key areas
to be covered include:
(A) Physical Environment

 Land use/Land Cover pattern will be assessed, covering the project area.
Information regarding land use classification of the study should be collected,
Land use patterns to cover areas of influence identified during scoping phase and
information on water bodies, and sites with historical/archaeological
significances, should be collected;
 Geography and geomorphology data should be collected from secondary and
primary sources to cover soils, geography and the geomorphology of the project
area;
 Climate and Meteorology information from secondary sources to provide
historical trends (10years) from the nearest meteorological station. This data
should cover hourly wind direction, hourly wind speed; hourly precipitation,
hourly mean temperature, hourly humidity and sunshine hours and hourly clouds.
 Natural Hazards disasters information to be collected from secondary sources for
the past 30 years – e.g., floods, landslides, earthquakes, drought, storm, storm
surge, wildfire etc
 Hydrology and water use – information from secondary sources to cover
catchments, rivers, and hydrology along the transmission line.
(B) Ecological Environment

 Items to be covered under this component include flora and fauna that will require
ecological survey of the study area to collect primary information on terrestrial
flora and fauna in the study area including rare, threatened and endangered
species. Collection of the existing and available information (secondary data) will
also be undertaken. Any possible changes to be caused by the project must be
identified. Information must include identification of flora and fauna types and
status, identification of sensitive areas such as habitats with important ecological
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values and confirmation of identified species with Tanzania and IUCN Red List
and legal status. Identification of these species will provide baseline data for
future monitoring of the impacts of the proposed transmission line
(C) Socio-economic Environment

Items to be covered under this component include ethnicity, vulnerable people (women,
elderly, disabled, children as described in JICA guidelines for environmental and social
considerations), and population by age groups, industries, NGOs, sanitation, diseases
such as HIV/AIDS, infrastructure, and gender. The livelihood of the people in the project
areas depend on access to these resources, profiling of the resources should be made to
provide the link between them and those resources and how the project will impact them.
 Demographic profile – using secondary data sources describe population trends,
age and occupation and marital status.
 Educations and literacy and status of institutions;
 Economic activities and livelihood patterns - using secondary data describe status
and condition regarding industrial activities (of all types and sizes), employment,
incomes and livelihood expenditure, land ownership and tenure;
 Socio-economic infrastructure and indicators – using secondary data sources
describe status and condition of housing and settlement, education infrastructure,
health service delivery and infrastructure, water supply and sanitation. Others are
waste disposal facilities and systems, transport and communication, energy and
utilization and any other social infrastructure available and which might be
affected by the project.
 Resettlement - for the purpose of preparing Abbreviated Resettlement Action Plan
(ARAP), identify and document potential properties (public and private) that may
be affected by the project, estimate general values, identify rough estimates of
affected persons and their socio-economic characteristics.
Task 3: Legislative, policies and administrative framework
Review relevant legislatives and policies applicable to the project. The review shall cover but not
limited to:
 National policies, laws, regulation and standards,
 International conventions, treaties, agreements relevant to the project, including labour
and human right treaties
 Institutional framework, jurisdictions and responsibilities for project implementation,
 Undertake gap analysis and comparison between national/local and International
guidelines or standards such as those from JICA and suggest how gaps can be filled.
Task 4: Stakeholder Consultations
 Relevant stakeholders will be identified for consultations;
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 Show in the EIA report how the views and concerns of the stakeholders have been
addressed;
 Consult with all relevant stakeholders including project affected persons and different
groups and categories;
 Ensure attendance to meetings and any other form of consultations is documented and
signed off by the stakeholders as required by law;
Task 5: Identification, Prediction and Analysis of Impacts
For items identified in the scoping process, impact will be studied and estimated for the
transmission line construction stage, operation and maintenance stage and decommissioning
stage. In addition, quantitative analysis will be made where possible. The EIA study will
evaluate the significance of environmental impacts associated with the proposed Project.
 Selection of impact identification tools must be done with the view to identify all critical
impacts, based on the baseline information. A Range of tools exist that can be used
including but not limited to checklist, networks diagrams, matrices, professional
experiences etc.
 Develop prediction scenarios: This should cover a range of impacts including for
example, (i) Noise quality and vibration from sources such as movement of vehicle
delivering construction material and (ii) potential negative impacts and benefits
socioeconomic impacts due to the proposed project. In addition, address the following
key aspects:
a. The methodology used to identify and analyse likely impacts (both negative and
positive) will be clearly outlined.
b. Consider impacts, in terms of positive or negative, short or long terms, permanent or
temporary, direct or indirect and reversibility.
c. The logic used to identify the key impacts on human beings, flora and fauna, soil,
water, air, climate, landscape, cultural heritage, or their interaction, will be explained.
d. A clear statement of the residual impacts and their significance will also be provided.
e. Consideration for possibility of cumulative impacts where impacts on the
environment take place so frequently in time or so densely in space that the
environment cannot assimilate the effects will be given.
f. The magnitude of each impact will be determined as predicted deviation from the
baseline conditions, during the pre-construction, construction and operation phase.
g. The data used to estimate the magnitude will be clearly described.
h. The methods used to predict impact magnitude will be described.
i. The significance of impacts will be assessed using the appropriate national and
international quality standards where available.
j. Remaining impacts after mitigation will be assessed using the appropriate national
and international quality standards where available. Where no such standards exist,
the assumptions and value systems used to assess significance will be justified.
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Task 6: Analysis of Alternatives
The identified impacts will be assessed and compared with different alternatives such as location
of transmission line, type of towers and technical specifications, including the “No project
alternative”. If this process (alternative comparison) has already been done in the previous
planning process, the study team will confirm the process undertaken to compare or consider
potential alternatives. The following alternatives are to be considered for alternative analysis for
the proposed Project:
 Best Available Technology (BAT)

 Options for locations of transmission line
 Options available to mitigate impact/risks; and
 No project scenario (zero option).
The comparison should address main environmental advantages and disadvantages of each
alternative and give reasons for the final choice.
Task 7: Preparation of Mitigation Measures

Mitigation measures for all significant impacts should be prepared in terms of avoidance,
minimization, compensations, offsetting etc. Mitigation measures and enhancement measures
shall be prepared for both negative and positive impacts such as increased generation of
electricity, employment, noise pollution, water pollution and increased pressure on water,
changes to the flora and fauna. The consultant shall also suggest possible cost for the
implementation of mitigation and describe institutional responsibilities and time frame within the
project cycle for their implementation.
Task 8: Preparation of Environmental and Social Management and Monitoring Plan

The consultant shall prepare the Environmental and Social Management and Monitoring Plan
(ESMP) to address management of all impacts and carry out regular monitoring of the
performance of the mitigation measures. The ESMP shall consist of implementation measures
for mitigation proposed in Task 7 covering pollution control measures as per allowable emission
thresholds/standards, solid and hazardous waste management; occupational health and safety
measures etc. The monitoring plan shall consist details regarding frequency of monitoring and
sample collection, type of samples to be collected (e.g., for water, ecology, social economics,
health etc). Further details regarding timeliness and organizational responsibilities in undertaking
monitoring and expected financial resources required must be provided. Where inter-
organizational collaboration will be needed to facilitate monitoring efforts, that arrangement and
commitment must be clearly stipulated. Clear reporting mechanism as per the Environmental
Impact and Audit Regulations, 2005 must be provided in the EIA report.
Task 9: Preparation of the EIA Report
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(a) The main report. The consultant shall prepare EIA report and submit the required number
for copies to the client and then to the National Environment Management Council
(NEMC) for review and final approval by the VPO. The report must contain the
following key elements:
 Executive summary;
 Acknowledgement;
 Acronyms;
 Introduction;
 Project background and description;
 Policy, administrative and Legal framework;
 Baseline Conditions;
 Stakeholder Consultations and views
 Assessment of Environmental and Socioeconomic Impacts;
 Analysis of Alternatives
 Mitigation Measures;
 Environmental and Social Management and Monitoring Plan;
 Cost benefit analysis;
 Decommissioning Plan;
 Summary and Conclusion
 References;
 Appendices;
(b) The Cover Page of the EIA Report must have the following information:
 Title of the proposed project;
 Location of proposed development;
 Developer;
 Lead consultants;
 Contact address and phone;
 Date of submission.
(c) EIA Report must also consist of Executive Summaries in Kiswahili and English that bearing
information as provided in the EIA and Audit Regulations, 2005:
i. Title and location of the project or undertaking;

ii. Name of the proponent and contact;
iii. Names and addresses of experts or firms of experts conducting EIA;
iv. A brief outline and justification of the proposed project or undertaking showing:
v. A brief description of the project environment;
vi. Project stakeholders and their involvement in the EIA process;
vii. Explanation on why some impacts are not addressed;
viii. List of developer, consultant, and local planning authorities and other people
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ix. and organizations consulted
x. Results of public consultation
xi. Description of the major significant impacts;
xii. Alternative considered;
xiii. Recommendations and plan for mitigation of the impacts;
xiv. Environmental and social management;
xv. Proposed monitoring and auditing;
xvi. Resource evaluation or cost benefit analysis, and
xvii. Conclusion and Recommendations
Methodology
An EIA is an open participatory process; the consultant is therefore required to ensure that
appropriate methods that would ensure maximum participation of all key stakeholders are
followed. Methods such as literature review, consultations with key stakeholders, interviews,
meetings, and focus group discussions should be used where appropriate. Other methods such
email communications, phone calls, should be used where applicable. Maps, diagrams and other
visual presentation techniques are highly recommended. The consultant must visit the proposed
site and consult with relevant stakeholders in order to get their concerns and views.
Deliverables
The EIA team will produce and submit the following documents according to the required
numbers as per the EIA and Audit Regulations, 2005:
i. Project Registration Form and Project Brief

ii. Scoping Report with Terms of Reference
iii. Draft EIA Report
iv. Final EIA Report
Expertise to be involved
The team shall consist of the following key experts:
i. Sociologist, Policy Analyst, EIA process and Team Leader

ii. Wildlife Ecologist
iii. Plant Ecologist
iv. Social – Economics and Resettlement Expert
v. Archaeologist and Cultural Heritage Expert
vi. Water Resources Engineer
vii. Electrical Engineering
viii. Land use expert
ix. Natural Resource Management expert Additional experts will be called in when needed.
Assignment Period
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The EIA process shall take within three months or 12 weeks 85 10.2 Stakeholders participated in
the meetings,
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13.2 Stakeholders participated in the meetings, Views, comments and responses
Stakeholders and Place Date Views and Concerns Response
nature of the meeting
Introduction of the Ubungo 31. 12.2019 • Appreciated the initiative taken by the
project and Discussion Municipal government to increase power in the city of Dar es
with Ubungo Council Salaam
Municipal Officials • Municipal Officials emphasized the need to be • It was agreed that
responsible with involved the environmental, land officers and town the municipal officials
environment and planners in the assessment to be involved in the
Town planning assessment
Introduction of the National Institute 08.05.2020  National Institute of Transport (NIT) accept the • TANESCO has
project and of Transport project on the ground that it will enhance electricity already written a letter to
Discussion with the (NIT) supply and reduce frequency power-cut in the City. NIT and initiated
National Institute of  Currently the NIT is in transition of upgrading the discussion with other
Transport Officials institution from institute to University; there are institutions responsible for
responsible with several ongoing projects including construction of land such as Ministry of
several flats for staff and students which requires Land and Ubungo
Transport Safety and
reliable electricity. Municipal Council in order
Environment as well  NIT is engaging in different important activities,
as Planning issues to find ways of solving the
one of the activities is inspection of imported
boundary dispute between
vehicles and installations; the Institute is planning
to upgrade the facility. TANESCO should the two institutions
demarcate the project area to avoid interference
with NIT daily activities. In addition the client
should not block access to NIT
 TANESCO should ensure electromagnetic effect
from electricity does not cause effect to student and
staff during operation of the project
 Provide awareness to workers on health and safety
issue especially during construction phase
 The client should communicate with the NIT
Planning department in order to ensure activities of
the project does not affect activities of the institute
especially during examination
• Boundary between NIT and TANESCO way-
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leave should be resolved before implementation of
the proposed project
Introduction of the Dar es Salaam 20.10.2021  The proposed project is good and timely required
project and Discussion Water Supply because it will help to reduce the problem of power
with DAWASA and Sanitation in the City due increased demands which include
officials Authority energy water pumping machines.
(DAWASA)  The project proponent is required to make follow up
with DAWASA regional office where the project is
located, particularly during the construction of the
project.
 The proponent should ensure adequate, transparent
and participatory public consultations in all stages
of project development
Introduction of the Tanzania 11.11.2021  The proposed project id good
project and Discussion Petroleum  Currently, GASCO has no any development plan
with TPDC - GASCO Development along the project area, may be in the future
officials Corporation  Joint site survey between two parts (TANESCO &
GASCO) before project implementation
 Submission of notification letter, plan and
methodologies of the activity for permit from
GASCO.
 Implementation of any site activity along or across
TPDC Gas Pipeline should be witnessed by
GASCO personnel. All supervision cost shall be
borne by project contractor.
 Proper communication of GASCO‟s permit
condition to project main and sub-contractor should
be observed and adhered.

Sensitization and Mavurunza - in 10.01.2020 • Stakeholders were concerned about the Consultation and field
awareness meeting Kimara ward decision of TANESCO to extend the way leaves in visits with TANESCO
order to accommodate the new Transmission line. officials in
They complained to see TANESCO staff to put collaboration with
mark beyond the existing way leaves indicating the mtaa leaders and
need for land acquisition. However, the consultant community confirmed
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clarified the issue that TANESCO does not need that the structures were
new land for the project. It intends to use the illegally located within
existing way leave for the new transmission line. the TANESCO
• Stakeholders wanted to know when the project wayleave. Therefore,
will start the people have
• Advised on the use of underground cable to already demolished the
minimize land take structures within the
• TANESCO should maintain and manage the existing wayleave of
access road to the transmission line for easy access the transmission line.
during maintenances and any accident that may
happen to the transmission line
Sensitization and Kimara Baruti in 11.01.2020 • Upgrading the power transmission line from The existing wayleave was
awareness meeting Kimara ward 132 kVA to 220kVA will result into increased acquired by considering all
in generation of electromagnetic field and thus increase negative impact from
the effect to the local communities living adjacent/close electromagnetic field.
to the transmission line. What measures would Therefore, no impact is
TANESCO put in place to restrain this effect expected from transmission
• TANESCO has extended their way leave by 15 line.
metres into community‟s land and properties; a
demarcated and erected beacon without consultation  The beacons were
with owners as well as before valuation and erected by the officials
compensation is done. from land department
• People are well informed about the procedure based on the official
for land acquisition according to the land laws boundary of
• TANESCO should come to the people through TANESCO.
Kimara Baruti Ward Office and explain what they have
done (i.e. extending the way leave) before continuing
with their project development plan.  The beacons were not
• Most of the land in Kimara Baruti Ward and erected were not
surrounding areas was not surveyed, currently the ward erected by TANESCO,
in doing squatter upgrading/ formalization activities. but land officers who
Urban Plan is excluding the area where TANESCO has knowns the boundary
erected beacons even if that area does not belong to of TANESCO.
TANESCO. Therefore, there is no
• Local communities are of the opinion that way TANESCO can
TANESCO should remove the beacon they erected so remove the beacons by
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that their (community) land is included in the the responsible
upgrading/formalization process and get title deeds. authority.
• Also local communities are complaining that
they raised their concerns with the Ubungo Municipal
Director but they have not received any answers. They
need urgent and clear responses on this matter.
Sensitization and Kilungule A in 11.01.2020 • There is a need for TANESCO in collaboration GPS were used in initial
awareness meeting Kimara ward with the Ministry Land, Human Settlement and Urban measurement, however, in
Development and Ubungo Municipal Council (Town the assessment of the
Sensitization and Kilungule B in 11.01.2020 planning department) to revisit the existing boundary of wayleave, tape measures
awareness meeting Kimara ward the Transmission Line were used, this had no
• TANESCO should use a more reliable impact in the original
instrument to determine the boundaries - something like measurement of the
a GPS instead of a tape measure. wayleave
Sensitization and Kibangu in 11.01.2020 • People have accepted the project but also •
awareness meeting Makuburi ward caution about employment opportunities during
Ward construction and protection of their environment and
their health have to be taken into account.
Sensitization and Kibo in Ubungo 29.01.2020 • Stakeholders have reported that the valuation of • TANESCO
awareness meeting ward properties in the area was done since 2013 but no management is aware of
compensation has been paid so far. Affected persons to valuation which was
know when they will be compensated in order to enable undertaken in 2013.
them to find new area settlement. However, they have not
received funds from the
government for the
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payment of compensation.
• They complained that they have been living in a •
difficult environment since the valuation has taken
place because they are not allowed to do any
improvement in their houses because any modification
after the valuation will not be considered for
compensation.
• Since the valuation of properties has been done,
stakeholders did not want to engage with consultant
because all that they need is their payment from the
2013 valuation
Sensitization and Kisiwani in 29.01.2020 • The stakeholders admitted that they are utilizing •
awareness meeting Ubungo ward the TANESCO Way leave for various activities.
• They wanted to know when the project will
start so that they can vacate the site
• They requested to be informed in advance about
the commencement of the project so that they can
prepare themselves to move.
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Consultation with Gas Company (Tanzania) Limited
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Consultation with DAWASA
176
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13.3 NEMC Screening Decision
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13.4 NEMC Approval of Terms of Reference
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13.5 Signatures forms for the Consulted Stakeholders
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183
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184
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185
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186
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187
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188
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189
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190
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191
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13.6 Minutes from Public Meetings
192
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193
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194
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195
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196
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197
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198
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6.

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Transmission line facilities

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