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City of Ramsey Project B1610732 January 10, 2017 Page 16 was detected in seven of the soils sample at concentrations ranging from 4 to 70 milligrams per kilogram (mg/kg). A petroleum tank release was reported to the State (Leak #14284). Contaminated soil was not excavated and stockpiled during lift removal activities since the samples did not indicated headspace readings exceeding 10 ppm. Approximately two cubic yards of soil became contaminated during the removal of the lifts. The contaminated soil was excavated and stockpiled on plastic. It was requested to thinspread the contaminated soil on -site beneath a parking or drive area. The footings for the existing building that were located in the area of past releases were screened with a PID. No elevated PID readings were noted. A 2000 Supplemental Phase II Investigation Report was prepared that discussed the investigation of potential soil and groundwater impacts from the underground hydraulic hoists. Six test holes were advanced near the underground hydraulic hoists. No elevated PID headspace measurements were recorded in any of the soil samples collected. No impacts were detected in selected soil samples. Groundwater samples were collected and analyzed for DRO and VOCs from three of the test holes. No VOCs were detected above the laboratory reporting limits in any of the samples. DRO was detected at a concentration of 500 micrograms/liter (ug/l) in one sample (collected from the Site); DRO was not detected above the laboratory reporting limit in the other two groundwater samples. The Phase II report concluded that soil impacts above the water table had been removed in the areas of the previously identified releases. A minimal amount of relatively low level petroleum contaminated soil is present beneath the former unused motor oil UST (on the Site). Groundwater impacts were found to consist mainly of low level petroleum related compounds. All of the contaminants were below their respective HRLs at the time the files were closed by the MPCA. The Phase II report states, "Based on the historical water samples and the low to non -detect results of the recently completed test holes, no further investigation or cleanup of groundwater appears necessary". A Development Response Action Plan (DRAP) was prepared and approved by the MPCA on June 4, 2001 to properly address any contamination that might be encountered during demolition of the automobile dealership building in the areas of the west drainfield, the east drainfield (on the Site), the former south dispensing island (on the Site), and the hydraulic lifts (eight of the lifts were located on the Site). An Implementation of the DRAP letter was prepared on November 30, 2001 that discussed the soil screening procedures used during the sub -grade redevelopment work. The water well associated with the former auto dealership was abandoned on May 25, 2001. DRO was detected during the removal of the hydraulic vehicle hoists within the dealership garage (Leak #14284), though at low concentrations that did not require soil removal or other response actions. The larger property, including the Site, entered into the VIC Program in April 2001 as VP4771 for the purpose of obtaining liability assurance letters regarding the historical releases identified at the larger property. Based on review of the environmental documents, the MPCA issued a Lender No Association Determination letter and a Retroactive No Association Determination letter both dated March 15, 2002. The Identified Release for the No Association letters was defined as petroleum -related VOCs and DRO impacted soils. BRAUN INTERTEC