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z Quik Stop Market#39 Page 2 <br /> 2285 E. Fremont Street, Stockton <br /> Leaking Underground Fuel Storage Tank Program <br />;I Case Closure Summary <br /> II III Release and Site Characterization Information continued <br /> Maximum Documented Contaminant Concentrations -- Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br />( TPH (Gas) ' 440. 2.3 0.610 0.062, Xylene 6.6 0.15 <0.0005 0.0005 <br /> 0-0005 <br /> TPH (Diesel) <1.0 NA NA NA MTBE <0.2 <0.005 <0.0005 <br /> Benzene <0.2 <0.005 <0.0005 <0.0005 1,2-DCA NA NA 0.280 0.076 <br /> Toluene 0.34 <0.005 0.010 <0.0005 <br /> Ethyl-benzene <0.2 0.02 <0.0005 <0.0005 <br /> Comments: Only active remediation conducted was 200 cubic yard soil removal from 'former' UST pit at time of <br /> 1998 UST removal. Before soil from dispenser/island area, "D-1-3', 1998. After soil from 2003 dispenser <br /> i upgrade sample, "S-D2-60"from 5'bgs. (2003 boring D-2 location was approximately the 1998 D-1 location). <br /> ' 11 Before and After groundwater.from MW-2. <br /> IV. [ Closure <br /> Does completed corrective action protect existing beneficial uses per Regional Board Basin Plan? yes <br /> Does completed corrective action protect potential beneficial uses per Regional Board Basin Plan? yes <br /> .i <br /> Does corrective action protect public health for current land use? yes <br /> Site management requirements: none a.. <br /> Should corrective action be reviewed if land use changes? yes <br /> 1 Have the Monitoring been decommission,ed? yes Number Decommissioned: 8 Number retained: 0 <br /> List enforcement actions taken: NOR,November 18, 1998 <br /> List enforcement actions rescinded: none. <br /> V. LocalAqency Representative Data <br /> Name: Donna Heran, REHS Title: Director of Environmental Health_ Department <br /> Signature- Date: <br /> 3-3 (-2-o1 0 <br /> VI. Central Valley Regional Water Quality Control Board RB) Notification. <br /> Date Submitted to RB: January22, 2010 Response'Date: February 11, 2010 <br /> RB Staff: James L.L. Barton: Response: concurrence with NFA. <br /> Title: Engineering Geologist <br /> VII., Additional Comments,'jData, etc. <br /> This document and the related CASE CLOSURE LETTER shall be retained by the lead agency as part of the <br /> official site file. <br /> i MY <br /> !I <br /> i <br />