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Cleaning Chlorination Water Tank Risk Analysis

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Brief Description of Activity: Assessor/s: Date:

Cleaning chlorination water tank

Step risk: Risk Evaluation Control measures required: Residual Risk:


Hazard:

Severity Likelihood RPN

Climbing to Working at (Falling down) 5 4 20 Provide parachute harness Low


the Top of the heights
tank

Install ladder Ladder slipping Injury 5 4 20 Secure to top or rigid structure Low
in tank.

Enter tank. Exposure to Skin and eye 4 5 20 Provide personal protective equipment ( head protection goggles, gloves, safety shoes and
Low
hazardous irritation , protective clothing, vapor mask)
atmosphere respiratory
problems Provide outside helper to watch, instruct and guide operator entering tank, with capability to lift
operator from tank in emergency
Cleaning tank Exposure to Skin and eye 4 5 20 Provide personal protective equipment ( head protection goggles, gloves, safety shoes and Low
hazardous irritation , protective clothing, vapor mask)
atmosphere respiratory
problems
Lifting heavy Back injury 3 4 12 Low
• Use small container to empty the sludge No more than 10 Kg
objects

Fallen objects Injury 4 3 12 • Wear a head protection


Low

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Appendix A

Risk matrix – use this to determine risk for


each hazard i.e. ‘how bad and how likely’ Likelihood of Harm
1-Remote 2-Very unlikely 3-Unlikely 4-Possible 5-Likely
Severity of Harm
1-Negligible e.g. small bruise 1 2 3 4 5
2-Slight e.g. small cut, deep bruise 2 4 6 8 10
3-Moderate e.g. deep cut, torn muscle 3 6 9 12 15
4-Severe e.g. fracture, loss of consciousness 4 8 12 16 20
5-Very Severe e.g. death, permanent disability 5 10 15 20 25

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