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Case Closure Summary Page,2 <br /> Leaking Underground Fuel Storage Tank Program <br /> ttl Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil {p Water (PPM) - Contaminant Soil (Ppm) Water (PP <br /> Before After Before After Before {ppm} <br /> Before After <br /> TPH (Gas) <1 <1 <.05 <.73 Ethylbenene <.005 <.005 <.0005 <00 <br /> 05 <br /> TPH(Diesel) 660 <1 <.05 .130 Xylene <.005 <005 <0005 <.0005 <br /> Benzene <005 <.005 <.0005 <.0005 MTBE .46 <.005 1 2.8 .140] <br /> Toluene <005 <005 <.0005 <.0005 <br /> lComments, Soil Before data is from samples obtained beneath the USTs removed in October 1998 at 10.5 feet. Soil After <br /> data is from CPT-1 on 5/12/04. Water Before data is from MW I on 4/28/00. Water After data is from MW8 on 6/2/09. <br /> L <br /> L <br /> iV, Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? Yes <br /> 0 completed <br /> Does <br /> s <br /> oes completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <br /> comp <br /> 0 s cti <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 /> 'iv action <br /> er reviewed <br /> m i. <br /> Monitoring/Vapor wells decommissioned: No Number Decommissioned: 0 Number retained: 22 <br /> decommissioned: <br /> /V s s 0 C <br /> List enforcement actions taken: NOR <br /> t <br /> s r sci <br /> List-enforcement actions rescinded: None <br /> E c <br /> ou" co' <br /> Monitoring <br /> apor well <br /> List enforcement actio <br /> List enforcement action rescinded: <br /> I <br /> V. Local Agency Representative Data <br /> Name: Margaret Lagorio Title: Program Coordinator <br /> Signature: - Date: <br /> V1.-Central Valley Reqional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: Response Date: <br /> RB Staff: James L.L. Barton Response: <br /> Title:Associate Engineering Geologist <br /> Vil. 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 <br /> site file. <br />