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------------ <br /> ........ = ---- <br /> Page 2 <br /> Quik Stop Market#39 <br /> : 2285 E. Fremont Street, Stockton <br /> Leaking Underground Fuel Storage Tank Program <br /> Case Closure Summary <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations --- Before and After Cleanup <br /> m Contaminant Soil (ppm) Water (ppm) <br /> EBenzene <br /> Soil (ppm) Water (Ppm) Before After Before After <br /> Before After Before After <0.0005 <0.0005 <br /> 440. 2.3 0.610 0.062 Xylene <60:2 0'15 <0-0005 <0.0005 <br /> <10 NA NA NA MTBE <0-005 <br /> <0.0005 <0.0005 1,2-DCA NA NA 0.280 0.076 <br /> <0.2 <0.0050.34 <0.005 0.010 <0.0005 <br /> <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 dispenserlisland area, "D-1-3', 1998. After soil from 2003 dispenser <br /> upgrade sample, "S-D2-60" from 5'bgs. (2003 boring D-2 location was approximately the 1998 D-1 location). <br /> Before and After groundwater from MW-2. <br /> IV, Closure <br /> Does completed corrective action protect existing beneficial uses per Regional Board Basin Plan? yN]e <br /> Does completed corrective action protect potential beneficial uses per Regional Board Basin Plan? y <br /> Does corrective action protect public health for current land use? yes <br /> Site management requirements: none <br /> Should corrective action be reviewed if land use changes? yes <br /> Have the Monitoring been decommissioned? yes Number Decommissioned: 8 Number r <br /> List enforcement actions taken: NOR, November 18, 1998 <br /> List enforcement actions rescinded: none <br /> V. Local Agenc Representative Data <br /> Title: Director of Environmental Health Department <br /> Name: Donna Heran, REHS <br /> Signature: Date: 3- 3 (-2-0 1 0 <br /> Vl. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: .January22, 2010 EE]Response Date: February 11, 2010 <br /> RB Staff: James L.L. Barton Response: concurrence with NFA. <br /> Title: Engineering Geologist <br /> VII- Additional Comments, Data, 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 /> Mi! <br />