| Step | Potential Hazard | Control |
|---|---|---|
| Assess site conditions | Traffic exposure, unstable footing, poor lighting | Establish MUTCD compliant traffic control if roadside; inspect for slip hazards; ensure adequate lighting |
| Inspect tools, PPE, and equipment | Damaged PPE, faulty lockout gear, broken tools | Inspect all PPE; verify lockout tagout devices; replace defective equipment |
| Don required PPE | Exposure to wastewater, aerosols, electrical components | Wear gloves, safety glasses, boots, and respirator if needed |
| Test atmosphere near wet well or vault | Hydrogen sulfide, methane, low oxygen | Use gas monitor; test at top and mid levels; ventilate if readings approach unsafe levels |
| Notify operators and record time | Miscommunication, unexpected pump activation | Inform SCADA operators or plant staff; document shutdown plan and timing |
| Review shutdown sequence | Incorrect pump or breaker shutdown | Verify pump numbering, control logic, and correct breaker locations |
| Isolate incoming power sources | Electrical shock, arc flash | Shut off breakers supplying pumps and controls; follow lockout tagout procedure; verify zero energy |
| Shut down pumps in sequence | Water hammer, sudden pressure changes | Turn off pumps one at a time; allow system to stabilize; communicate sequence to team |
| Disable automatic controls | Unexpected pump start, control malfunction | Switch station to manual mode; disable float or sensor control; confirm with SCADA if applicable |
| Engage bypass pumping (if required) | Flooding, overflow, suction hazards | Set up bypass pumping according to JSA; verify pumps are providing continuous flow |
| Verify that pumps are fully de energized | Shock hazard, sudden movement | Use voltage tester to confirm circuits are dead; check control panel indicators |
| Inspect wet well or dry well | Toxic gases, fall hazards | Ventilate space; keep hatch barriers in place; avoid leaning into opening |
| Perform maintenance or repair activities | Pinch points, sharp edges, contamination | Use insulated tools; avoid line of fire; handle components with gloves |
| Monitor for incoming flow | Overflow risk, rapid level rise | Observe water levels in wet well; adjust bypass pumping or close valves as needed |
| Restore power after maintenance | Sudden pump startup, electrical hazards | Stand clear of pumps; energize circuits slowly; remove lockout devices only when authorized |
| Restart pumps in proper sequence | Pressure spikes, cavitation | Start pumps one at a time; observe operation; ensure priming is adequate |
| Verify automatic controls resume normal operation | Control failure, unexpected cycling | Switch back to automatic mode; test float or sensor activation; confirm SCADA readings |
| Close and secure station | Trip hazards, unauthorized access | Lock control panel; secure wet well covers; clean site |
| Clean and disinfect tools and PPE | Biological contamination, chemical exposure | Rinse tools and boots; bag disposable PPE; wash hands thoroughly |
| Final documentation and communication | Missed steps, confusion on system status | Record actions taken; notify supervisors and operators that station is operational |
Hard hat
Safety glasses or face shield
High visibility vest or jacket
Steel toe boots
Chemical resistant gloves
Waterproof boots or waders (if working near wet wells)
Hearing protection near pumps or generators
Respirator if sewer gases or aerosols are present
Disposable coveralls for dirty environments
Always have a complete, well-stocked first aid kit available.
JSA Category: Water and Sewer Department Operations
* The steps, hazards, and controls displayed above may be incomplete or not suit your department's needs. All job safety analyses should be a completed with frontline worker input to ensure that each potential hazard is identified and mitigated.
Please read about The Essentials Elements of a Solid Job Safety Anaylsis here.
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| Step | Potential Hazard | Control |
|---|---|---|
| Assess site conditions | Traffic exposure, unstable footing, poor lighting | Establish MUTCD compliant traffic control if roadside; inspect for slip hazards; ensure adequate lighting |
| Inspect tools, PPE, and equipment | Damaged PPE, faulty lockout gear, broken tools | Inspect all PPE; verify lockout tagout devices; replace defective equipment |
| Don required PPE | Exposure to wastewater, aerosols, electrical components | Wear gloves, safety glasses, boots, and respirator if needed |
| Test atmosphere near wet well or vault | Hydrogen sulfide, methane, low oxygen | Use gas monitor; test at top and mid levels; ventilate if readings approach unsafe levels |
| Notify operators and record time | Miscommunication, unexpected pump activation | Inform SCADA operators or plant staff; document shutdown plan and timing |
| Review shutdown sequence | Incorrect pump or breaker shutdown | Verify pump numbering, control logic, and correct breaker locations |
| Isolate incoming power sources | Electrical shock, arc flash | Shut off breakers supplying pumps and controls; follow lockout tagout procedure; verify zero energy |
| Shut down pumps in sequence | Water hammer, sudden pressure changes | Turn off pumps one at a time; allow system to stabilize; communicate sequence to team |
| Disable automatic controls | Unexpected pump start, control malfunction | Switch station to manual mode; disable float or sensor control; confirm with SCADA if applicable |
| Engage bypass pumping (if required) | Flooding, overflow, suction hazards | Set up bypass pumping according to JSA; verify pumps are providing continuous flow |
| Verify that pumps are fully de energized | Shock hazard, sudden movement | Use voltage tester to confirm circuits are dead; check control panel indicators |
| Inspect wet well or dry well | Toxic gases, fall hazards | Ventilate space; keep hatch barriers in place; avoid leaning into opening |
| Perform maintenance or repair activities | Pinch points, sharp edges, contamination | Use insulated tools; avoid line of fire; handle components with gloves |
| Monitor for incoming flow | Overflow risk, rapid level rise | Observe water levels in wet well; adjust bypass pumping or close valves as needed |
| Restore power after maintenance | Sudden pump startup, electrical hazards | Stand clear of pumps; energize circuits slowly; remove lockout devices only when authorized |
| Restart pumps in proper sequence | Pressure spikes, cavitation | Start pumps one at a time; observe operation; ensure priming is adequate |
| Verify automatic controls resume normal operation | Control failure, unexpected cycling | Switch back to automatic mode; test float or sensor activation; confirm SCADA readings |
| Close and secure station | Trip hazards, unauthorized access | Lock control panel; secure wet well covers; clean site |
| Clean and disinfect tools and PPE | Biological contamination, chemical exposure | Rinse tools and boots; bag disposable PPE; wash hands thoroughly |
| Final documentation and communication | Missed steps, confusion on system status | Record actions taken; notify supervisors and operators that station is operational |
Hard hat
Safety glasses or face shield
High visibility vest or jacket
Steel toe boots
Chemical resistant gloves
Waterproof boots or waders (if working near wet wells)
Hearing protection near pumps or generators
Respirator if sewer gases or aerosols are present
Disposable coveralls for dirty environments