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Case Closure Summary Pag- <br /> Nft-e-eaking Underground Fuel Storage Tank S49rarn <br /> III Release and Site Characterization Information (continued) ,wa Ury <br /> Maximum Documented Contaminant Concentrations Before and After Cleanup <br /> Contaffithant Soil (PPM) Water (ppm) Contaminant17S=oil (ppm) Water (PPM) <br /> Before After Before After Before Aft r Saftre- 7 <br /> After <br /> TPH (Gas) 1,200 800 NA ND Xyfene I 104 .7 or NA <br /> TPN(Diesel) ND <br /> Ethylbenzene 4.1 17 fNA. ND <br /> Benzene <2.0 oQ4 NA ND Oil &Grease <br /> Toluene 3.7 37 NA ND Heavy Metals <br /> MTSE NA 0551 Na. ,04 <br /> Comments: NO AG1-1-YE—REMtD.lAtION—PERFORMED AT THIS SITE. "BEFORE"QUANTITIES FROM THE TANK PULL <br /> ANALYTICAL. RESULTS: "AFTER"SOIL RESULTSFROM MONITORING WELL INSTALLATON <br /> SOILANALYSIS; <br /> "AFTER"WATER: ES LTs FROM MOST CURRENT GRO L <br /> UNDWATER MONITORING ANALYSIS; <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 decommissioned: 0 Number Decommissioned: 0 Number retained-, 3 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded., NONE <br /> V. Local Agency Representative Data. <br /> Name: MARGARET LAGORIO, RENS Title: SUPERVISOR, SITE MITIGATION UNIT <br /> Signature:< Date: L4 <br /> VI. <br /> Central I <br /> VWley.Regional Water Quality Control Board (RB)Notification <br /> Date Submitted to RB. Response Date: <br /> RB Staff- MARTY HARTZELL Response: <br /> Title: ASSOCIATE ENGINEERING GEOLOGIST <br /> VII. Additional Comments, Data,etc. <br /> This document and the related CASE CLOSURE LETTER,Shall be retained by the lead#&ncy as part of the official <br /> site file. <br />