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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 (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 3300 ND@ 1 NA <0.05 Ethyibenene 20 ND@.005 NA <0.0005 <br /> Benzene ND @ 50 ND@.005 NA <0.0005 Xylene 210 ND@.005 NA <0.0005 <br /> Toluene ND @ 50 ND@.005 NA <0.0005 MTBE NA-.1992 ND@.005 NA <0.0005 <br /> Comments: <br /> NA-NOT ANALYZED DURING TANK PULL(DATE 1992) <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? NO <br /> MonitoringNapor wells decommissioned: NONE Number Decommissioned: NONE Number retained: NONE <br /> List enforcement actions taken: NONE <br /> List enforcement actions rescinded: NONE i <br /> V. Local Agency Representative Data <br /> Name: Donna Heran - r p Title: Director of Environmental Health f� , f <br /> Signature: Date: <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 04/09/99 Response Date: <br /> RB Staff: MARK LIST Response: <br /> Title: ENGINEERING GEOLOGIST I� <br /> VIE. Additional Comments, Data, etc. ' <br /> NONE <br /> Y <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 /> h <br />