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ESH Web  Manual 
11: Excavation Safety
Overview Requirements Standards Definitions    


Chapter 11 Table of Contents. View the entire chapter in a PDF format. Please use the pdf for printing.

Requirements:
Roles and Responsibilities (5.1.5)

Excavation Safety Program Manager (5.1.5.1)

The program manager will

  • Be a SLAC excavation competent person
  • Administer the excavation permit*, including
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])
    • Approving permits (completing Section E of the permit)
    • Closing out permits, ensuring project managers and UTRs submit documentation of as-found and as-built conditions during their project to MD-FDS (completing Section F of the permit), and delivering updated as-builts to MD-FDS upon completion of the project
    • Notifying EP and MD-FDS both when an excavation permit is approved and when it is closed
    • Determining whether the permit needs to be revised and resubmitted if the scope of work changes
  • Periodically inspect excavation job sites for safety
  • Develop requirements and guidance as appropriate
  • Provide line management and workers with guidance concerning program requirements
  • Ensure the continual improvement of the program by regularly assembling the collective stakeholders and exchanging improvement ideas

Project Manager / University Technical Representative (5.1.5.2)

The project manager/UTR will

  • Be a SLAC excavation competent person
  • Request a permit for any excavations covered by this chapter, providing the necessary project description (completing Section A of the permit)*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])
  • Ensure that the in-field utility survey is conducted, be present during it, and ensure that the location of underground installations and utilities have been properly located and marked before initiating excavation activities*
    * (Utility Marking Requirements [pdf] and Utility Line Location Results Form [pdf])
  • Post the completed permit at the job site before work begins, with job safety plans (JHA or SSSP and JSA, Cal/OSHA annual permit)
  • Be present at the excavation site during
  • Active operations in which employees are expected to descend and when powered machinery is to be used
  • Placement of access/egress components such as ramps, ladders, or stairs
  • Placement of support systems
  • Activities where heavy equipment is used
  • Activities that present a significant hazard to personnel or equipment
  • Verify that the subcontractor's excavation competent person has checked that the excavation is in stable materials and is conducting and documenting daily inspections as required by this chapter*
    * (Daily Inspection Checklist [pdf])
  • Verify that the subcontractor's health and safety plan is being implemented and the conditions of the permit are being met
  • Notify the excavation safety program manager if the scope of the project changes, for example the size of excavation changes or unexpected conditions are encountered
  • Ensure that associated drawings are updated, including verifying the drawings in the field
  • Ensure completion of the excavation, then meet with the excavation safety program manager, delivering the as-builts (completing Section F of the permit)

For more information on routine UTR duties, see SLAC University Technical Representative Requirements and Procedures for Construction [pdf].

Excavation Competent Person (5.1.5.3)

The excavation competent person will

  • Be present during all active operations. If work is being conducted in the trench by more than one subcontractor, each must have its own competent person when employee exposure can reasonably be anticipated.*
    * (Excavation Procedures [pdf])
  • Perform and document the daily excavation inspection checklist and maintain a log of inspection checklists on-site for inspection*
     * (Daily Inspection Checklist [pdf])
  • Identify and ensure the use of adequate protective systems, work methods, and personal protective equipment (PPE) on site in accordance with the excavation regulations and best safety management practices*
    * (Physical Requirements [pdf])
  • Stop activity and remove exposed personnel from the hazardous area until the necessary precautions have been taken to ensure their safety whenever finding evidence of a situation that could result in a possible cave-in, indications of failure of protective systems, hazardous atmospheres, or other hazardous conditions

SLAC Construction Safety Engineer (5.1.5.4)

To ensure general construction requirements are met, SLAC construction safety engineers will make periodic inspections of all active construction sites and excavations and document results.

Mechanical Design Department, Facilities Design Group (5.1.5.5)

MD-FDS will

  • Maintain as-builts and other construction drawings
  • Initiate permit process (numbering the permit)*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])

Note: If an excavation permit is cancelled, the number of the cancelled permit will not be reused.

  • Make as-builts available to project managers/UTRs
  • Arrange for utility surveys if requested by project managers/UTRs
  • Confirm results of utility survey by being present during the survey and completing Section B of the permit*
    * (Utility Line Location Results Form [pdf])

Environmental Protection Department (5.1.5.6)

The Environmental Protection Department will

  • Review excavations for environmental concerns and waste disposition (completing Section C of the permit)*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])
  • Coordinate soil disposal
  • If necessary perform sample collection and provide an updated waste disposition based on analytical results

Radiation Protection Department, Field Operations Group Leader (5.1.5.7)

The Radiation Protection Department, Field Operations Group Leader will

  • Review the excavation for radiological concerns (completing that part of Section D of the permit)*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])

Radiation Protection Department, Radiation Physics Group Leader (5.1.5.8)

  • Review the excavation for radiation shielding concerns (completing that part of Section D of the permit)*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])

Subcontractor (5.1.5.9)

Each subcontractor for an excavation will

  • Complete a site-specific safety plan (SSSP)*
    * (Subcontractor Construction Safety: Site-specific Safety Plan Form [pdf] [word])
  • Complete a job safety analysis (JSA) for each task/phase of work*
    * (Subcontractor Construction Safety: Job Safety Analysis Form [pdf] [word])
  • Have an excavation competent person and ensure that person carries out all required duties
  • Conduct operations following the conditions of the permit and all other requirements*
    * (Excavation Permit Form [pdf] [word] and Excavation Procedures [pdf])
  • Hold an annual permit from the California Division of Occupational Safety and Health (Cal/OSHA), if working on an excavation that is five feet or deeper in which employee are required to descend

Utility Line Locator (5.1.5.10)

Utility line locators will

 

 

continue to Procedures and Specific Requirements (5.2)


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