Underground Tank Removal

Underground Tank Removal

Underground tank removal is the process of excavating storage tanks from below the ground surface. This task is comprised of excavation and environmental compliance. Furthermore, hazardous waste is generated and transported to a disposal site. Moreover, soil sampling, compaction and regulatory agency oversight are part of the process to achieve closure. A team of specialized contractors, geologists and engineers are required to achieve closure with each respective oversight agency.

Underground Tank Removal Project


Underground Tank Removal by Excavation

Excavators carefully remove the soil surrounding underground storage tanks, creating a pit in accordance with OSHA standards. Next, (unless the pit includes a ramp) proper lateral support and lagging is applied to the excavated walls.  Certified welders or fasting professionals secure all lifting modules to the tank.  Furthermore, crane operators  are utilized to safely remove the tanks from the subsurface. Each field technician must have all appropriate state, federal and local certifications for health and safety compliance. Lastly, all generated wastes are temporarily stockpiled, until transported to the proper disposal and treatment facility.


Typical Procedure for Underground Tank Removal Projects

The underground tank abandonment process includes the following procedures:

  • Preparation of a health and safety plan.
  • Application for excavation, including as-built plans and proposed excavation calculations.
  • Excavation permit-approval.
  • Pre-demolition hazardous materials management and spill prevention.
  • Proper planning for hazardous waste disposal and EPA Certification.
  • Excavation and crane lifting.
  • Truck-mounting and hauling.
  • Environmental soil sampling.
  • Laboratory analysis and environmental assessment report.
  • Materials disposal to EPA-approved disposal facility.
  • Certified soil back-filling and compaction testing.
  • Surface pavement.

Environmental Compliance

Various regulatory agencies require environmental soil sample analysis directly under USTs. Samples are collected immediately after the tanks are removed. Chemical analytical results are prepared to determine weather a leak has occurred from each tank. Soil and/or groundwater remediation services are also offered by Geo Forward, Inc. if contamination is apparent.  Furthermore, contaminated soil can be cleaned-up via impact source removal remediation.


Sources:

www.lafd.org CUPA
www.lafd.org Abandonment Guidelines
www.dpw.lacounty.gov
www.occupainfo.com


Geo Forward, Inc. is the preferred provider of UST abandonment projects in California.

(888) 930-6604

Call to speak with a licensed geologist, engineer or contractor.


Forward-Thinking Professional Geologists, Engineers & Contractors!

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