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Case Closure Summary Page 2 <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 0.18 0.02 2.6 ND <br /> TPH (Diesel) ND 100 ND ND Ethylbenzene 0.13 0.005 1.7 ND <br /> Benzene 0.007 0.012 0.19 0.0006 Oil &GreaSe NA NA NA NA <br /> Toluene 0.059 0.005 1.1 ND Heavy Metals ND NA NA NA <br /> MTBE 0.32 2.7 3.2 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 DATAARE FROM THE 02/08/00 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 /> Monitoring/Vapor wells: 5 Number Decommissioned: S Number retained: 0 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name: DONNA HERAN, REHS Title: DIRECTOR, ENVIRONMENTAL HEALTH DEPT. <br /> Signature: -- Date: D <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 10/21/03 Response Date: 11/06/03 <br /> RB Staff: JAMES L.L. BARTON, R.G. Response: CONCURRENCE <br /> Title: ENGINEERING GEOLOGIST <br /> 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 LETTER, Shall be retained by the lead agency as part of the official <br /> site file. <br />