Agenda - Council - 04/11/2017 - Laserfiche WebLink

Home

City of Ramsey Project B1610732 January 10, 2017 Page 13 B.5.d. Leak#14284 A petroleum tank release was reported on June 15, 2001 following the removal of fifteen hydraulic lifts from the former auto dealership building; eight of the lifts appear to have been located on the Site. Each lift had an approximate 25-gallon hydraulic oil underground storage tank.The initial release was identified during the removal of lift#15 (located west of the Site) based on a slightly elevated PID reading. Subsequently obtained analytical testing results of soil samples obtained from beneath the other lifts indicated detectable DRO concentrations beneath eight of the fifteen lifts (including five lifts formerly located on the Site) and detectable concentrations of ethylbenzene, toluene and xylene beneath lift#15.The excavations were completed to depth of 8 feet below ground surface. Groundwater was not encountered in the excavations. A Supplemental Phase II Field Investigation was completed in August 2000 in the area of the lifts prior to their removal. Six probes were advanced as near as possible to several of the lifts; three of the probes appear to have been advanced on the Site. Soil samples were collected and analyzed for DRO, GRO, and petroleum volatile organic compounds (PVOCs) and groundwater samples were collected and analyzed for DRO and volatile organic compounds (VOCs). No impacts to soils were identified and a low level DRO impact to groundwater was identified in one of the sample locations (a probe that was advanced on the Site).The MPCA closed the file on the reported release on March 14, 2002.The file apparently overlapped with the VIC file (VP4771). B.5.e. VP4770 A Phase I ESA was conducted in 1994 on a larger 6.75-acre property that included the Site. At the time, the larger property was occupied by an auto dealership building that included sales and repair services (the eastern portion of the building was located on the Site).The 1994 Phase I report indicates that auto dealership building was constructed in 1965, gasoline fuel sales occurred from 1969 to 1970, and that an addition of a new shop/service area was constructed in 1979. The 1994 Phase I ESA indicated the larger property was previously developed as a farmstead with a riding stable. The 1994 Phase I ESA identified several environmental conditions existing at the larger 6.75-acre property, including the Site.The environmental conditions included the presence of two sand traps (considered Class V injection wells) which have been used in the shop areas to collect shop wastewater and any small spills that may have occurred inside the building. The west sand trap was located just west of the Site and the east sand trap was located on the Site. Drainfields were associated with both sand traps. Three USTs (waste oil,fuel oil, and gasoline)were registered to the facility at the time.The gasoline UST was reportedly formerly located along the east boundary of the larger property(and the Site). A second gasoline UST was reportedly also located in this area. Both gasoline tanks were reportedly installed in 1969. One of the gasoline USTs was removed in 1971 and the second gasoline UST was removed in 1985 or 1986.The waste oil and fuel oil USTs, located on the west side of the auto dealership building, were removed in January 1994 along with an unused motor oil UST that was located under the north end of the building (on the Site). BRAUN INTERTEC