Job Safety Analysis: Bypass Pumping

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Step Potential Hazard Control
Assess work area Traffic exposure, unstable ground, overhead lines Conduct full site walk; establish MUTCD compliant traffic control; choose safe staging area
Inspect pumps, hoses, clamps, plugs, and hardware Pump failure, hose blowoff, plug failure Inspect all equipment; verify pump capacity; ensure hoses, fittings, and clamps are undamaged
Don required PPE Sewer exposure, splash hazards, pump noise Wear gloves, safety glasses, boots, face shield for wastewater, and hearing protection
Identify flow conditions and isolation points Unexpected flow surge, flooding Coordinate with plant or station operators; verify valves; plan bypass route carefully
Test atmosphere if near manholes or wet wells Hydrogen sulfide, methane, low oxygen Use four gas monitor; ventilate confined spaces; do not lean into openings
Install plugs to isolate flow (if required) Plug ejection, sudden waste discharge Stand to the side; use safety rope; do not exceed plug pressure rating
Stage pump on stable ground Pump tipping, vibration hazards Place pumps on level ground; use wheel chocks; keep away from soft shoulders
Set up suction hoses Hose whip, pinch points, sewage contact Use two people; secure suction hose with chains or straps; avoid standing in front of inlet
Place discharge hoses Trip hazards, uncontrolled discharge Route hoses away from pedestrian pathways; use hose ramps; avoid directing discharge into waterways
Prime and start pump Hose movement, loud noise, splash Start pump slowly; check for leaks; tighten fittings; keep personnel clear
Monitor pump performance Overheating, suction loss, clogging Assign one person for continuous monitoring; shut down pump before clearing blockages
Manage fuel safely Fire hazard, spill risks Shut pump off to refuel; use spill pads; avoid overfilling; store fuel safely
Prevent environmental contamination Illegal discharge, erosion Discharge only to approved location; use trenching or bags if needed; keep water out of storm drains unless permitted
Maintain communication during bypass Pump failure, overflow Assign radio to pump monitor; check upstream levels; adjust pumping rate as needed
Shut down pump gradually Backflow, hose collapse Decrease pump speed slowly; shut valves in controlled manner
Remove hoses and plugs Splash hazards, tool strain Release pressure before disconnecting; pull plugs slowly; keep clear of hose ends
Clean and disinfect equipment Biological contamination Rinse pump body, hoses, plugs; bag disposable PPE; wash hands thoroughly
Restore system to normal operation Surge conditions, pressure changes Coordinate with operators; open valves slowly; verify normal flow
Final site cleanup Trip hazards, debris Remove all equipment, hoses, and spill pads; sweep area clean
Remove traffic control Exposure to vehicles Remove devices in reverse order; maintain lookout; keep PPE on until clear

Suggested Personal Protective Equipment

  • Hard hat

  • Safety glasses or face shield

  • High visibility vest or jacket (Class 3 if roadside)

  • Steel toe boots

  • Waterproof boots or waders

  • Chemical resistant gloves (nitrile or neoprene if wastewater)

  • Long pants and long sleeves

  • Hearing protection near pumps or generators

  • Respirator when aerosols, odors, or dust are present

  • Disposable coveralls for heavy contamination

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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Job Safety Analysis
Step Potential Hazard Control
Assess work area Traffic exposure, unstable ground, overhead lines Conduct full site walk; establish MUTCD compliant traffic control; choose safe staging area
Inspect pumps, hoses, clamps, plugs, and hardware Pump failure, hose blowoff, plug failure Inspect all equipment; verify pump capacity; ensure hoses, fittings, and clamps are undamaged
Don required PPE Sewer exposure, splash hazards, pump noise Wear gloves, safety glasses, boots, face shield for wastewater, and hearing protection
Identify flow conditions and isolation points Unexpected flow surge, flooding Coordinate with plant or station operators; verify valves; plan bypass route carefully
Test atmosphere if near manholes or wet wells Hydrogen sulfide, methane, low oxygen Use four gas monitor; ventilate confined spaces; do not lean into openings
Install plugs to isolate flow (if required) Plug ejection, sudden waste discharge Stand to the side; use safety rope; do not exceed plug pressure rating
Stage pump on stable ground Pump tipping, vibration hazards Place pumps on level ground; use wheel chocks; keep away from soft shoulders
Set up suction hoses Hose whip, pinch points, sewage contact Use two people; secure suction hose with chains or straps; avoid standing in front of inlet
Place discharge hoses Trip hazards, uncontrolled discharge Route hoses away from pedestrian pathways; use hose ramps; avoid directing discharge into waterways
Prime and start pump Hose movement, loud noise, splash Start pump slowly; check for leaks; tighten fittings; keep personnel clear
Monitor pump performance Overheating, suction loss, clogging Assign one person for continuous monitoring; shut down pump before clearing blockages
Manage fuel safely Fire hazard, spill risks Shut pump off to refuel; use spill pads; avoid overfilling; store fuel safely
Prevent environmental contamination Illegal discharge, erosion Discharge only to approved location; use trenching or bags if needed; keep water out of storm drains unless permitted
Maintain communication during bypass Pump failure, overflow Assign radio to pump monitor; check upstream levels; adjust pumping rate as needed
Shut down pump gradually Backflow, hose collapse Decrease pump speed slowly; shut valves in controlled manner
Remove hoses and plugs Splash hazards, tool strain Release pressure before disconnecting; pull plugs slowly; keep clear of hose ends
Clean and disinfect equipment Biological contamination Rinse pump body, hoses, plugs; bag disposable PPE; wash hands thoroughly
Restore system to normal operation Surge conditions, pressure changes Coordinate with operators; open valves slowly; verify normal flow
Final site cleanup Trip hazards, debris Remove all equipment, hoses, and spill pads; sweep area clean
Remove traffic control Exposure to vehicles Remove devices in reverse order; maintain lookout; keep PPE on until clear
Suggested Personal Protective Equipment