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w <br /> 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 (Ppm) <br /> m) Contaminant Soil (ppm) Water <br /> Soil (ppm) Water (ppCon <br /> Contaminant Before After Before After <br /> Before After Before After <008 NA 2.7 <,001 <br /> 11 NA 110 <.45 Ethyibenene 088 NA 15 <.401 <br /> <.048 NA .164 <.001 <br /> TPH(Gas) Xylene <br /> TPH(Diesel) MTBE .250 NA 5.2 .0017 <br /> Benzene 3A <.001 <br /> Toluene <.008 NA <br /> Comments: Sail Before results from MW 1 at 6 feet on 6122100. No remediation performed so Soil After results not <br /> applicable(NA). Groundwater Before results are from the grab sample from the excavation at time of the UST removal. <br /> Groundwater After results are from MW2 on 1113105. <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 /> MonitoringNapor wells decommissioned: No Number Decommissioned: 0 Number retained: 4 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> EFName: garet Lagorio Title: Supervising REHS <br /> Date: <br /> Vl. Central Valley Regionial 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 /> 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 <br /> site fife. <br />