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' Blaee Environmental Mnnageneent Inc U-Haul#709-50 <br /> 002-70950-04 Groundwater Monitoring Report <br /> 09/09/02 <br /> ' 2 0 SITE BACKGROUND <br /> 2 1 SITE DESCRIPTION <br /> Amerco/U-Haul owns and occupies the property and currently uses the site as a U-Haul vehicle and <br /> equipment rental and repair shop Two single-story buildings occupy the site The buildings include a <br /> ' former service station building and a garage, which was added to the original building The original <br /> building consists of an office/retail area and two garage bays on the south side The add-on structure <br /> ' consists of two garage bays A separate storage container is located on the south side of the building Site <br /> features are shown on Figure 2 <br /> 1 <br /> The site was formerly used as a gasoline storage and retail facility According to a 1994 SOTA <br /> ' Environmental Technology, Inc (SOTA) work plan, the site was used as a gasoline retail facility from <br /> I <br /> approximately 1950 until 1976 In 1976, the site was listed in the Polk directory as "Stockton Moving <br /> ' Center" From 1976 until 1990, the site was apparently used as a moving equipment rental facility Since <br /> 1990, U-Haul has used the site in its current capacity <br /> 2 2 DETECTION OF HYDROCARBON RELEASE <br /> ' According to a 1990 ETS Environmental & Assoc (ETS) report, four underground storage tanks (USTs) <br /> and associated fuel dispensers were removed from the site in 1990 The four USTs included one 10,000- <br /> gallon, one 8,000-gallon, and one 6,000-gallon capacity tanks that contained unleaded and gasoline fuel,and <br /> one 250-gallon capacity waste-oil tank The tanks were orientated approximately east-west and located in I <br /> ' the area labeled "Former UST Location"(Figure 2) Upon removal,the tanks were not replaced According <br /> to ETS, the analytical results from samples collected beneath the former USTs and associated product lines <br /> ' indicated detectable concentrations of petroleum hydrocarbons in the soil Based on the results of soil <br /> samples collected during the UST removal, the hydrocarbon release areas were concluded to be 1)the UST <br /> ' area and 2)the product piping areas(Figure 2) <br /> 1 <br /> i3 <br /> 1 <br />