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Tank Cleaning Risk Assessment

Review the critical hazards, potential consequences, persons at risk and recommended control measures for Tank Cleaning in one professional HSE workspace.

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Tank Cleaning Hazards & Controls

Review the key hazards, consequences and control measures for Tank Cleaning in a structured professional HSE format.

01
Hazard

Toxic residue

Potential Consequence

Poisoning or skin exposure

Persons at Risk

Cleaning workers

Existing Controls

Gas testing, ventilation and chemical PPE

Additional Controls

Check compatibility between cleaning agent and residue

02
Hazard

Slippery surface

Potential Consequence

Slip and fall

Persons at Risk

Tank-entry workers

Existing Controls

Suitable footwear and regular removal of liquids

Additional Controls

Keep work surfaces as dry as practicable

03
Hazard

High-pressure cleaning equipment

Potential Consequence

Injection or laceration injury

Persons at Risk

Cleaning operator

Existing Controls

Trained operator and suitable equipment

Additional Controls

Keep nozzle direction away from personnel

04
Hazard

Toxic tank atmosphere

Potential Consequence

Poisoning or fatality

Persons at Risk

Tank-cleaning crew

Existing Controls

Gas testing and ventilation

Additional Controls

Monitor atmosphere throughout cleaning

05
Hazard

Slip on sludge or liquid

Potential Consequence

Fall or injury

Persons at Risk

Tank workers

Existing Controls

Housekeeping and suitable footwear

Additional Controls

Keep access routes clear

06
Hazard

High-pressure cleaning

Potential Consequence

Laceration or injection injury

Persons at Risk

Cleaning personnel

Existing Controls

Trained operator and PPE

Additional Controls

Never direct the nozzle toward personnel

07
Hazard

High-pressure jet directed at personnel

Potential Consequence

Laceration or injection injury

Persons at Risk

Cleaning workers

Existing Controls

Dead-man trigger and trained operator

Additional Controls

Never direct the nozzle toward the body or other personnel

08
Hazard

Cleaning chemical vapor accumulation in tank

Potential Consequence

Poisoning or loss of consciousness

Persons at Risk

Tank-cleaning crew

Existing Controls

Ventilation and gas monitoring

Additional Controls

Monitor the atmosphere at required intervals throughout cleaning

09
Hazard

Uncontrolled discharge of cleaning waste

Potential Consequence

Environmental contamination or slip hazard

Persons at Risk

Cleaning and site personnel

Existing Controls

Waste collection and controlled drainage

Additional Controls

Transfer waste in a controlled manner to approved tanks or containers

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SERNEM

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SERNEM
Tank Cleaning RISK ASSESSMENT
SRN-HIRARC
Revision: 1.0
ACTIVITYTank CleaningCATEGORYTank
#ActivityHazardConsequencePersons at RiskExisting Risk ControlLSRiskAction Required / Additional ControlsPerson in ChargeDue DateRLRSResidual Risk
01Tank CleaningToxic residuePoisoning or skin exposureCleaning workersGas testing, ventilation and chemical PPE236
Medium
Check compatibility between cleaning agent and residue--122
Low
02Tank CleaningSlippery surfaceSlip and fallTank-entry workersSuitable footwear and regular removal of liquids236
Medium
Keep work surfaces as dry as practicable--122
Low
03Tank CleaningHigh-pressure cleaning equipmentInjection or laceration injuryCleaning operatorTrained operator and suitable equipment339
Medium
Keep nozzle direction away from personnel--122
Low
04Tank CleaningToxic tank atmospherePoisoning or fatalityTank-cleaning crewGas testing and ventilation2510
High
Monitor atmosphere throughout cleaning--224
Low
05Tank CleaningSlip on sludge or liquidFall or injuryTank workersHousekeeping and suitable footwear236
Medium
Keep access routes clear--122
Low
06Tank CleaningHigh-pressure cleaningLaceration or injection injuryCleaning personnelTrained operator and PPE339
Medium
Never direct the nozzle toward personnel--122
Low
07Tank CleaningHigh-pressure jet directed at personnelLaceration or injection injuryCleaning workersDead-man trigger and trained operator339
Medium
Never direct the nozzle toward the body or other personnel--122
Low
08Tank CleaningCleaning chemical vapor accumulation in tankPoisoning or loss of consciousnessTank-cleaning crewVentilation and gas monitoring236
Medium
Monitor the atmosphere at required intervals throughout cleaning--122
Low
09Tank CleaningUncontrolled discharge of cleaning wasteEnvironmental contamination or slip hazardCleaning and site personnelWaste collection and controlled drainage339
Medium
Transfer waste in a controlled manner to approved tanks or containers--122
Low
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Approved By
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SERNEM • Professional Risk AssessmentWork should not begin until required controls are implemented.