Job Safety Analysis: Working Around Contaminated Sediments

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Step Potential Hazard Control
Assess site conditions Exposure to unknown contaminants, unstable banks, standing water, wildlife Conduct visual inspection; identify access points; avoid undercut banks; review any available contamination reports
Identify contamination source Contact with hazardous material, inhalation of fumes, biological exposure Evaluate type of contaminant if known; use caution near sewage, petroleum, chemicals, or algae; notify supervisor before beginning removal
Inspect equipment and PPE Damaged gloves, leaking waders, broken scoops, inadequate respirators Inspect PPE for tears or leaks; verify respirator cartridges are appropriate; check tools for structural integrity
Establish work zone Public exposure to contamination, crew exposure to traffic Set up exclusion zone using cones, tape, or barricades; mark contaminated area clearly; place additional traffic control if roadside
Don required PPE Chemical exposure through skin or mucus membranes Wear gloves, boots or waders, long sleeves, and face protection; use disposable suits for heavy contamination
Limit direct contact with sediments Skin contact, infections, chemical burns Use long handled tools such as shovels, rakes, or grabbers; avoid kneeling or sitting in contaminated areas
Remove contaminated sediments Splashes, inhalation of vapors, unexpected buried debris Remove material slowly; avoid aggressive scraping; keep face away from bucket or shovel; use suction or vactor equipment if available
Handle unknown waste materials found in sediment Chemical exposure, sharp objects, hazardous waste Do not open containers; isolate hazardous objects; notify supervisor; follow municipal hazardous waste procedures
Use pumps or vactor equipment Hose whip, splash back, aerosolization of contaminated water Operate pumps at low pressure initially; stand clear of discharge; use face shield or goggles
Prevent sediment from entering waterways Environmental harm, regulatory violations Use berms or absorbent socks; avoid disturbing additional sediment; place collected contamination in sealed containers
Transport sediment safely Spills, drips, exposure inside vehicle Use sealed containers or barrels; place in lined truck bed; secure load to prevent tipping; avoid overfilling
Decontaminate tools and PPE Cross contamination, chemical exposure Rinse tools in designated wash area; use approved disinfectant; avoid washing contaminants into streams or storm drains
Remove PPE safely Contaminant transfer to skin or clothing Remove gloves last; roll disposable suits outward; bag PPE waste; wash hands thoroughly
Dispose of contaminated sediment Improper disposal causing environmental hazards Transport to approved disposal or treatment facility; document disposal if required; follow state and local regulations
Final site inspection Residual contaminated sediment, missed hazards Walk area to ensure all contamination is removed; verify no debris remains; check containment measures
Remove traffic control Worker exposure to moving vehicles Remove cones and signs in reverse order; maintain lookout; wear high visibility PPE until clear

Suggested Personal Protective Equipment

  • Hard hat

  • Safety glasses or face shield

  • High visibility vest or jacket if near traffic

  • Waterproof boots or waders

  • Chemical resistant gloves (nitrile or neoprene)

  • Steel toe boots if using heavy tools

  • Long pants and long sleeves

  • Disposable coveralls when contamination is severe

  • Respirator if odors, vapors, or airborne contaminants are present

Always have a complete, well-stocked first aid kit available.

JSA Category: Stormwater, Drainage, and Waterways

* 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 site conditions Exposure to unknown contaminants, unstable banks, standing water, wildlife Conduct visual inspection; identify access points; avoid undercut banks; review any available contamination reports
Identify contamination source Contact with hazardous material, inhalation of fumes, biological exposure Evaluate type of contaminant if known; use caution near sewage, petroleum, chemicals, or algae; notify supervisor before beginning removal
Inspect equipment and PPE Damaged gloves, leaking waders, broken scoops, inadequate respirators Inspect PPE for tears or leaks; verify respirator cartridges are appropriate; check tools for structural integrity
Establish work zone Public exposure to contamination, crew exposure to traffic Set up exclusion zone using cones, tape, or barricades; mark contaminated area clearly; place additional traffic control if roadside
Don required PPE Chemical exposure through skin or mucus membranes Wear gloves, boots or waders, long sleeves, and face protection; use disposable suits for heavy contamination
Limit direct contact with sediments Skin contact, infections, chemical burns Use long handled tools such as shovels, rakes, or grabbers; avoid kneeling or sitting in contaminated areas
Remove contaminated sediments Splashes, inhalation of vapors, unexpected buried debris Remove material slowly; avoid aggressive scraping; keep face away from bucket or shovel; use suction or vactor equipment if available
Handle unknown waste materials found in sediment Chemical exposure, sharp objects, hazardous waste Do not open containers; isolate hazardous objects; notify supervisor; follow municipal hazardous waste procedures
Use pumps or vactor equipment Hose whip, splash back, aerosolization of contaminated water Operate pumps at low pressure initially; stand clear of discharge; use face shield or goggles
Prevent sediment from entering waterways Environmental harm, regulatory violations Use berms or absorbent socks; avoid disturbing additional sediment; place collected contamination in sealed containers
Transport sediment safely Spills, drips, exposure inside vehicle Use sealed containers or barrels; place in lined truck bed; secure load to prevent tipping; avoid overfilling
Decontaminate tools and PPE Cross contamination, chemical exposure Rinse tools in designated wash area; use approved disinfectant; avoid washing contaminants into streams or storm drains
Remove PPE safely Contaminant transfer to skin or clothing Remove gloves last; roll disposable suits outward; bag PPE waste; wash hands thoroughly
Dispose of contaminated sediment Improper disposal causing environmental hazards Transport to approved disposal or treatment facility; document disposal if required; follow state and local regulations
Final site inspection Residual contaminated sediment, missed hazards Walk area to ensure all contamination is removed; verify no debris remains; check containment measures
Remove traffic control Worker exposure to moving vehicles Remove cones and signs in reverse order; maintain lookout; wear high visibility PPE until clear
Suggested Personal Protective Equipment