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City of Ramsey Project B1700969 March XX, 2017 Page 2 DRAFT Past occupants of the commercial building included automobile sales and services businesses and a sign and graphics business. The automobile dealerships were identified on the storage tank, leak site, hazardous waste generator, and Voluntary Investigation and Cleanup Program databases. Petroleum impacted soils and groundwater have been documented on the Site from the past automobile sales and services uses. The surrounding area was historically developed as cultivated cropland with scattered farmsteads and has been progressively redeveloped for commercial use. The Site is currently occupied by an out -of -service former retail fueling facility. The associated underground storage tanks (USTs), which included one 20,000-gallon gasoline UST, two 10,000-gallon gasoline USTs, and one 10,000-gallon diesel UST, were removed during the week of March 13, 2017. The USTs were removed by a licensed tank removal contractor in accordance with MPCA guidance, including Guidance Document c-prp3-01, Excavation of petroleum -contaminated soil and tank removal sampling. The tank removal activities and sample results are reported under separate cover. Sampling results are also summarized in Section B.2 of this report. B.2. Previous Site Investigations Numerous environmental investigations and activities have been conducted at the Site, including Phase I and Phase 11 ESAs, petroleum storage tank and hydraulic lift removals, and contaminated soil excavations. Available documents associated with previous environmentally -related activities were reviewed and summarized as part of a recently completed Phase 1 ESA, which is documented in the following report: ■ Phase I Environmental Site Assessment, Vacant Gasoline Station/Convenience Store, 6401 Highway 10 NW, Ramsey, Minnesota, prepared by Braun Intertec Corporation, dated January 10, 2017. (2017 Phase I ESA) Previous environmental investigations at the Site, conducted from 1994 to 2002, identified soil and groundwater contamination in several Site locations. Due to the previously identified contamination, the Site is associated with four closed MPCA leaking petroleum storage tank cases (Leak #7134, 7205, 14065, 14284) and two Voluntary Investigation and Cleanup (VIC) cases (VP4770, and VP4771). A summary of the previous investigations and leak/VIC cases is presented in the 2017 Phase I ESA. BRAUN INTERTEC