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F1, 11 Copy <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 /> m After Water (ppm) Contaminant Soil Before (ppm) Water (ppm) <br /> Contaminant Soil (ppm) After Before After <br /> Before Before After <,025 0.048 <br /> TPH(Gas) 190. 24 1.7 Ethyl-benzene 0.80 <br /> TPH(Diesel) <br /> NA NA Xylene 5.6 <.025 0.050 <br /> Benzene 0.15 <.025 <0.0005 <br /> Toluene 0.43 <.025 <0.0005 MTBE <0.05 <.005 1<0.005 <br /> ULTS IN PARTS PER MILLION! NO REMEDIATION'CONDUCTED. Soil <br /> Comments NOTE: GROUNDWATER RES <br /> the UST at the time of removal. Soli After results are from <br /> Before results are from a soil sample collected beneath <br /> P1 at 12 feet below surface. Water Before results are from a grab sample obtained 3/6198 from the Geoprobe hole. <br /> IV.Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? NA <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? NA <br /> Does corrective action protect public health for current land use? NIA <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes?`YES <br /> Have the Monitoring/Vapor wells been decommissioned? NIA. Number Decommissioned: N/A. Number retained: 0 <br /> List enforcement actions taken: NOR-02/26/97 <br /> List enforcement actions rescinded: N/A <br /> V. Local Agency Representative Data <br /> Name: Donna Horan Title: Director oCN f Environmental Health <br /> Signature: Date: �,.2- <br /> c <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: April 18,2000 Response Date: May 17,2000 <br /> RB Staff: Marry Hartzell. Response: Concurrence <br /> Title:.Engineering Geol2gist <br /> VII. Additional Comments,Data,etc. <br /> This document and the related CASE CLOSURE LETTER, shall be retained by the lead agency as part of the official site file. <br /> MI/4/15/00 <br />