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Underground Storage Tank Removal

Underground tanks come in various forms; underground storage tanks (USTs) used for storage of liquids such as gasoline, diesel, fumigants, solvents; Clarifiers, used industrial wastewater processing, sumps, pits, and other subsurface features that store, convey, or process chemicals and chemical waste.

Federal and state regulations prescribe strict design, operation, and decommissioning practices for USTs and other such subsurface containers. Many states mandate specific requirements including permits, containment, monitoring, inspections, and sampling for the underground tank removal and closure of such subsurface elements. In the event that said subsurface container has been determined to be leaking, the cleanup of resulting soil contamination is typically under the oversight of a local agency, As such, groundwater investigation and cleanup activities are typically regulated by regional water quality control boards.

Andersen Environmental certified professionals provide our clients a “turn-key” solution when dealing with a UST or any other type of subsurface structure. Andersen Environmental will determine all relevant information regarding the container, regulatory requirements for removal, follow regulatory guidelines for removal, provide reporting and communication with regulators with the goal of achieving “closure” to the site as it pertains to said subsurface containers. Andersen Environmental provides understands that often time is of the essence in completing such projects, as such it invests much effort in competing such projects in a rapid pace.

Underground Storage Tank Removal Includes:

  • Characterization, removal and proper disposal of liquid waste from the tank
  • Cleaning the tank interior and monitoring the lower explosive level (LEL) of tank and surrounding areas before removal.
  • Excavation and removal of subsurface structure
  • Proper disposal of container;
  • Collection of soil samples from excavation pit and related piping for lab analysis of soil samples
  • The excavation is backfilled, compacted, and repaved, as appropriate
  • Removal activities are summarized in a removal report for submission to local agencies