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Case Closure Summary Page' <br /> ImAking Underground Fuel Storage Tank Pr'"M <br /> III Release and Site Characterization Information(continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant soil (Ppm) Water (ppm) Contaminant Sail (Ppm) Water (ppm) <br /> Before After Before After Before Afil+r Before After <br /> TPH(Gas) 1.200 800 NA N© Xylans 110.0 87` NA ND <br /> TPH(diesel) Ethyibenzene 4.1 117 NA 1NDI <br /> Benzene e2.0 C.24 NA ND Oil&Grease <br /> Toluene 3.7 37 NA ND Heavy Metals <br /> MTBE NA #055 NA :04 <br /> Comments: NO ACTIVE REMEDIATION PERFORMED AT THIS SITE. "BEFORE"QUANTITIES_FROM THE TANK PULL <br /> ANALYTICAL RESULTS.`"AFTER"SOIL RESULTS FROM MONITORING WELL INSTALLATION SOIL ANALYSIS', <br /> "AFTER"WATER RESULTS FROM MOST CURRENT GROUNDWATER MONITORING ANALYSIS. <br /> IV.Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Pian?YES <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? YES <br /> Does corrective actitan protect pUblic health for current land arse? YES <br /> ........... <br /> Site management requiremts NONE <br /> Should corrective action be reviewed if land use changes?YES <br /> Monitoring/Vapor wells decommissioned: 0 Number Decommissioned; 3 Number retained: 0 <br /> List enforcement actions taken.:. NOR <br /> . ........ .. <br /> List enforcement actions rescinded. NONE <br /> V. Local Agency Representative Data <br /> Name: DONNA HERAN Title. DIRECTOR OF ENVIRONMENTAL HEALTH <br /> Signature: Date; <br /> Vi. Central Valley Regional Water Quality Control Board(RB)Notification <br /> Crate Submitted to RB: 04117/00 Response Date: 05130100 <br /> R8 Staff: MARTY HARTZELL Response: CONCURRENCE <br /> Titter ASSOCIATE ENGINEERING GEOLOGIST <br /> VII. Additional Comments, Data, etc. <br /> This document and the related CASE CLOSURE LETTER,Shall be retained bythe lead agency as part of the official <br /> site file. <br />