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Run: Hydrovac Potholing Daily Job Hazard Analysis

Daily JHA for hydrovac potholing crews to verify utility locates, tolerance zone controls, water-jet hazards, slurry handling, and stop-work readiness before...

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Job Scope and Site Authorization

Work scope, location, and utility target are clearly defined

Document the exact potholing or daylighting location, target utility, and purpose of the task.

Current utility locate, permit, and work authorization are available on site critical (required)

Verify the crew has the latest locate marks, permit-to-work, and any required excavation authorization before starting.

Yes No N/A

Competent person or designated supervisor has reviewed the task and site conditions critical (required)

Confirm oversight by a competent person for excavation-related hazards and changing field conditions.

Yes No N/A

Weather, ground conditions, and access/egress are acceptable for safe operation critical (required)

Assess mud, ice, slope, standing water, visibility, and traffic access before mobilizing.

Underground Utility and Tolerance Zone Controls

Tolerance zone boundaries are identified and marked before excavation begins critical (required)

Confirm the crew understands the marked tolerance zone and limits of mechanical or water excavation near buried utilities.

Yes No N/A

Excavation method is appropriate for the utility type and site conditions critical (required)

Verify the chosen method will not damage the utility or compromise the locate.

Nozzle stand-off distance is maintained per site procedure and utility risk critical (required)

Record the planned or observed nozzle stand-off distance. Adjust based on utility sensitivity, soil conditions, and manufacturer/SOP requirements.

Note (optional)

Spotter, hand signals, and communication method are established critical (required)

Confirm a clear communication plan between nozzle operator, truck operator, spotter, and any traffic control personnel.

Yes No N/A

High-Pressure Water and Hot Water Hazards

Water pressure settings are within approved operating limits critical (required)

Document the operating pressure and confirm it matches the task, soil conditions, and equipment limits.

Note (optional)

Hot water use is justified and controlled critical (required)

Verify hot water is only used when necessary and that burn/scald hazards are controlled.

Hoses, fittings, and nozzle show no leaks, damage, or whip hazards critical (required)

Inspect for abrasion, cracks, loose connections, damaged guards, or signs of pressure failure.

Yes No N/A

PPE for water jet and splash exposure is selected and worn critical (required)

Confirm PPE matches the hazard profile for high-pressure water, splash, noise, and wet surfaces.

Slurry, Spoils, and Housekeeping

Slurry containment and disposal plan is in place critical (required)

Verify where slurry will be stored, transferred, and disposed, including any environmental restrictions.

Yes No N/A

Spoils are managed to prevent slips, trips, and utility recontamination critical (required)

Check that slurry, spoil piles, and hoses are positioned to keep walkways and access points clear.

Yes No N/A

Containment area is stable and protected from runoff critical (required)

Confirm slurry will not enter storm drains, waterways, or other sensitive areas.

Emergency Readiness and Signoff

Emergency contact, first aid, and incident reporting process are known to the crew critical (required)

Confirm the crew knows who to contact and how to respond to a utility strike, injury, or equipment failure.

Yes No N/A

Utility strike response and stop-work criteria were reviewed before starting critical (required)

Review immediate stop-work actions for line damage, gas odor, arcing, pressurized release, or unexpected utility exposure.

Yes No N/A

Inspection comments include any hazards, deficiencies, and corrective actions

Document unresolved hazards, non-conformances, and the control measures assigned before work continues.

Inspector signature critical (required)

Signature of the person completing the daily JHA/inspection.

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