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%MOO <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 /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) <1 <1 <.050 Ethylbenene <.005 <.005 <.0005 <br /> TPH (Diesel) NA NA NA Xylene <.005 <.005 <.0005 <br /> Benzene <.005 <.005 <.0005 DDg <,005 <.D005 <br /> Toluene <.005 <.005 <.0005 MTBE <br /> Comments: All levels in ppm. Soil Before Results from soil boring B2 on 3125199. Soil After Results are from soil borings <br /> on 6120-21100 Groundwater Before is from grab samples from soil borings on 6120-21100. Nb remediation required. <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? No <br /> Monitoring/Vapor wells decommissioned: NA Number Decommissioned: Number retained: <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Donna Heran Title: Director Environmental Health <br /> Signature: Date: Lf-27-01 <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 3/23101 Response Date: 4123101 <br /> RB Staff: Marty Hartzell Response: Concurrence <br /> Title: Associate Engineering Geologist <br /> VII. Additional Comments, Data, etc. <br /> IF-- - I <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 />