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RECEIQ'D <br /> Ev'eV v G. Bro.,Je <br /> 9 W41-11 <br /> 3 2012 v Mn*r R <br /> Water Boards ENVIRONMENTALHEA(,TH P <br /> RERMITISERVICES <br /> State Water Resources Control Board <br /> USTCF 5-YEAR REVIEW SUMMARY <br /> 5TH REVIEW— JUNE 2012 <br /> Agency Information <br /> Agency Name: San Joaquin County Address: 600 East Main Street, <br /> Environmental Health Stockton, CA 95202 <br /> Department Count <br /> Agency Caseworker: Michael Infurna Case No.: 507155 <br /> Case Information <br /> USTCF Claim No.: 12992 Global ID: T0607700815 <br /> Site Name: Three B's Truck Plaza Site Address: 14749 North Thornton Road, <br /> Lodi, CA 95242 <br /> Responsible Party (RP): Three B's Truck Address: PO Box 1036, <br /> Plaza Tracy, CA 95376 <br /> USTCF Expenditures to Date: $1,278,826 Number of Years Case Open: 14 <br /> Summary <br /> A leak was identified in 1997 and the Board opened an initial UST case number R-06268 at this <br /> site. Since 1999, 60 monitoring wells have been installed and monitored regularly. Soil vapor <br /> extraction and air sparging was conducted from December 2009 and March 2011, which <br /> removed 73,813 pounds of TPHg. According to data available in GeoTracker, there are seven <br /> California Department of Public Health (CDPH) regulated Public Supply Wells within % mile of <br /> the site, the nearest well is 246 feet from the Site. To date, $1,278,826 in corrective action <br /> costs have been reimbursed by the Fund. Attachments 1 and 2 provide the technical data to <br /> support our recommendation. <br /> Recommendation <br /> Source area monitoring well MW-8A has historically had elevated concentrations of residual <br /> hydrocarbons in groundwater. However, after 13 years of monitoring, the groundwater plume is <br /> shrinking in size and concentration. Analytical data indicate that WQOs have been achieved in <br /> down gradient well MW-10A. Groundwater within the source area will likely remain above <br /> WQOs for years to decades. The affected shallow groundwater is not used as a source of <br /> water supply nor is it likely to be used as a source of water supply in the foreseeable future. <br /> Water users in the vicinity of the site rely on a San Joaquin County Municipal Water System. <br /> CHARLES R. HOPPIN, CHAIRMAN I THOMAS HOWARD, EXECUTIVE DIRECTOR <br /> 1001 1 Street,Sacramento,CA 95814 1 Ne nng Address P.O.Box 108 Sacrernento.CA 9E812-010) I www waterboarde.ca.gov <br /> PECYCLEO PAPER <br />