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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 fter <br /> TPH(Gas) <10 <1 <.05 Xylene ii <.025 <.005 <.0005 <br /> TPH(Diesel) 76.0 <10 <.05 Ethylbenzene <.025 <.005 <.0005 <br /> Benzene <.025 <.005 <.0005 Oil &Grease <10 NA NA <br /> Toluene 0.005 <.005 <.0005 Heavy Metals Pb 11.0 11.0 NA <br /> TBA NA <.25 <.025 MTBE NA <.01 <.001 <br /> EDB <.02 <.005 <.0005 1,2-DCA <.025 <.005 <.0005 <br /> Comments: Soil Before results are from soil beneath UST's at time of removal 8129189. Soil After and Water After results <br /> are from GeoProbe soil and groundwater grabs collected on 315102. No'remediation necessary. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board'3asin 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:N/A <br /> Should corrective action be reviewed if land use changes? NIA <br /> MonitoringNapor wells decommissioned: 0 Number Decommissioned: 0 Number retained: 0 <br /> k <br /> List enforcement actions taken: Level one. <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name:. Margaret Lagorio Title: Supervising REHS/Site Mitigation/LOP Unit IV <br /> Signature: Date:;: sj y <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: Response Date: <br /> RB Staff: M. Hartzell Response: <br /> Title: Assoc ng Geologist <br /> VII. Additional Comments, Data, etc. - <br /> Soil only at time of UST removal in 1989 and not confirmed w/additional assessment including groundwater sampling. <br />