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c <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 <br /> m Contaminant Soil (ppm) Water {ppm) <br /> Contaminant Soil {ppm) Water IPP ) Before After Before After <br /> Before After Before After <.005 <.0005 <br /> TP <br /> {Gas) 21,000 <1 <.05 Ethylbenene 3.8 <br /> TPH (Diesel) 3,800 62 <br /> <.OS Xylene 6.5 <.005 <.0005 <br /> <1.5 <.005 <.0005 <br /> Benzene MTBE 27 14 <.001 <br /> Toluene <1.5 <.005 <.0005 <br /> F <br /> ts: All levels in ppm. Soil Before levels from UST removal samples on 12130198. Soil After levels are from <br /> r on 2/19199. Groundwater Before levels are from B2 grab sample on 2120101. Soil remediation was removal of 90 <br /> rds of contaminated soil on 2119199. <br /> re <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: No Number Decommissioned: 0 Number retained: 1 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Margaret Lagorio Title: Supervising REHS <br /> Signature: Date: <br /> VI. Central Valley 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 agency as part of the official <br /> site file. <br />