Caltha LLP Project SummaryProject: Site Investigation of Oil Releases From Waste Oil Storage
Client: Facility Owner/Operator
Key Elements: Soil and Groundwater Site investigation, Groundwater sampling, Soil sampling, Soil Vapor Sampling
Overview: Caltha LLP conducted a Soil And Groundwater Site Investigation for this commercial property located in Minnesota. A Phase 1 assessment had determined a higher risk for leaks from a used oil storage tank located on the property. A limited site investigation (Phase 2 Environmental Site Assessment) confirmed that petroleum releases outside the building had occurred from this unit.
Spills and Leaks In Former Oil Tank Room
The release on the property had been reported to the MPCA and the Owner entered the MPCA Petroleum Brownfields Program to obtain a leak site closure letter. The site investigation was to define the magnitude and extent of the release and to identify any other contributing sources. The work included further soil borings, soil and groundwater sampling, and subslab soil vapor sampling, all done in accordance with MPCA guidance documents.
Fresh Oil Tanks and Dispensers
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