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Case Closure Summary Page 2 fig' <br /> Leaking Underground Fuel Storage Tank Program <br /> III. Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil Before (ppm) Water (ppm) Contaminant Soil Before {ppm} Water (ppm) <br /> After Before After After Before After <br /> TPH (Gas) 4.0 4.0 37 ND Xylene 0.1$ 0.02 2ND <br /> TPH(Diesel) ND 100 NO NO Ethylbenzene 0.13 0.005 1.77 ND <br /> Benzene 0.007 0.012 0.19 0.0006 Oil&Grease NA NA NA <br /> Toluene 0.059 0.005 1.1 NO Heavy Metals ND NA NA NA <br /> MTBE 0.32 2.7 32 0.010 <br /> Comments: ---NO ACTIVE REMEDIATION WAS DONE AT THIS SITE--- "BEFORE" SOIL AND WATER DATA ARE <br /> FROM THE TANK PULL SAMPLE ANALYTICAL. "AFTER" SOIL DATA ARE FROM THE 02/08100 SITE INVESTIGATION. <br /> "AFTER"WATER DATA ARE FROM THE FINAL MONITORING AND SAMPLING EVENT COMPLETED ON 04125103. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan?YES <br /> Does completed 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 /> MonitoringNapor wells decommissioned: 0 Number Decommissioned: 0 Number retained: 5 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded. NONE <br /> V. Local Agency Representative Data <br /> EName: ARGARET LAGORIO, REHS Title: SUPERVISOR, SITE MITIGATION UNIT <br /> : Date' 0 3 <br />� <br /> VI. Central Valley g Notification <br /> le Regional Water Quality Control Board (RB) <br /> EStaff: <br /> itted to RB: Response Date: <br /> AMES L.L. BARTON Response: <br /> SSOCIATE ENGINEERING GEOLOGIST <br /> III VII. Additional Comments, Data, etc. <br /> THREE AREA DOMESTIC WELLS SAMPLED 10103. RESULTS WERE ALL NON DETECT <br /> This document and the related CASE CLOSURE ETTER,Shall be retained by the lead agency as part of the official <br /> site file. <br /> f <br />