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Case Closure Summary Page <br /> Leaking Underground Fuel Storage Tank Program <br /> [II 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 I Before After Before After <br /> TPH(Gas) <9.0 340 <0.050 Ethylbenene <0.005 0.081 <0.001 <br /> TPH (Diesel) NA N A 0.16 Xylene <0.005 <0.050 <0.001 <br /> Benzene 0.16 0.650 <0.001 MTBE 80 440 <0.001 <br /> Toluene <0.005 <0.050 <0:001 1.2 DCA NA NA <0.001 <br /> Comments: Soil Before data are from sample 3E collected at approximately 15 feet bsg during the UST removed on <br /> 12110198. Soil After data are not available since soil confirmation samples were not collected. Water Before data are from <br /> VW-1 collected on 10114199. Water After data are from the VW-1 collected on 04128111. NA—not analyzed <br /> IV. Closure <br /> - -�, Does completed corrective action protect existing beneficial uses per the Regional-Board Basin Plan?••Yes-� --- <br /> a. <br /> Does cam.pleted corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <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 /> Monitoring wells decommissioned: Yes Number Decommissioned: 15 Number retained: 0 <br /> List enforcement actions taken: I NOR <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Donna Heran, REHS Title: Director <br /> Signature: Date: November 5, 2012 <br /> VL Central Valley Regional Water Quality Control Board (RB) Notification <br /> .� :. Date Submitted to.RB; September.29, 201,1,., Response Date: October 12, 2011 <br /> T <br /> RB Staff: James L.L-. Barton Response: Concurrence <br /> Title: Associate Engineering Geologist <br /> Vt]. Additional Comments, Data, etc. <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the.official <br /> site file. ' <br /> i <br /> f <br /> S <br />