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EiVVIRONMENTAL;`:!{VG , <br /> 3330 Cameron Park Drive, Ste 550 <br /> Cameron Park, California 95682 <br /> �. (530)676-6004-Fax:(530)676-6005 <br /> i <br /> December 8, 2000 <br /> Project No. 2007-0065-01 <br /> a <br /> ` Mr. Harlin Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, California 95202 <br /> Re: Third Quarter 2000 Groundwater Monitoring Report for USA Station 65, <br /> 2500 West Lodi Avenue, Lodi, California <br /> Dear Mr. Knoll; <br /> On behalf of USA Gasoline Corporation (USA), Stratus Environmental, Inc. (Stratus) has i <br /> prepared this report presenting the results of' the third quarter 2000 groundwater <br /> monitoring event conducted at USA Station 65, located at 2500 West Lodi Avenue, Lodi, <br /> California (Figure 1). Also included in this report is data collected during the operation <br /> of a soil vapor extraction system (SVES) which began operation during the third quarter <br /> 2000: <br /> 1 <br /> BACKGROUND <br /> I The majority of information provided in this section was gathered from a Remedial k <br />' Action Plan (RAP) prepared by Pinnacle Environmental Solutions, Inc. (Pinnacle), a <br /> division of EMCON, dated January 26, 1999. A limited site investigation completed in <br /> i <br /> March 1987 detected petroleum hydrocarbons in soil and groundwater beneath the site. <br /> The investigation included the drilling and sampling of four soil borings; two of which <br /> were completed as groundwater monitoring wells (S-1 and S-2). , In August'1987, three <br /> additional groundwater monitoring wells were installed (MW-1, MW-2, and MW-3). <br /> Additional monitoring wells (MW-4, MW-5, MW-6, MW-7, and MW-8) were installed <br /> to assess the lateral extent of petroleum hydrocarbon impact to groundwater. Figure 2 <br /> presents the location of all monitoring wells. <br /> Three, gasoline underground storage tanks (USTs) and associated piping were removed <br /> and replaced on October 6 and 7, 1997. Approximately 500 cubic yards of hydrocarbon- <br /> impacted soil were excavated and removed from the site during these activities. <br /> I <br /> CAProject Files%USA Gasoline10651QtrIy13Q00.doc <br />