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Case Closure Summary Page 2 <br /> � ".aking Underground Fuel Storage Tank Prt im <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations -- Before and After Cleanup <br /> Contaminant Soil (ppb) Water (ppb) Contaminant Soil (ppb) Water (ppb) <br /> Before After Before After Before After Before After <br /> Benzene ND ND NT ND <br /> Toluene ND ND NT ND <br /> Ethylbenzene ND ND NT ND <br /> Xylene 300 ND NT ND <br /> MTBE ND ND NT ND <br /> TPHd 64,000 ND NT ND <br /> TPHg ND ND NT ND <br /> No remediation required. Soil before results were from soil sampled at the time of UST removal. Soil and groundwater after <br /> results were from preliminary assessment borings. <br /> IV. Closure <br /> f <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? YES y <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 /> I <br /> Monitoring wells decommissioned: NA Number:Decommissioned: NA Number retained: 0 <br /> i <br /> List enforcement actions taken: NOR sent <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Donna Heran Title: Director of Environmental Health <br /> Signature: `�� Date: -7 <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> E <br /> mitted to RS: July 22,1999 Response Date: <br /> Mark ListResponse: <br /> ineering Geologist <br /> VI1. Additional Comments, Data, etc. <br /> Soil only. <br /> I <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the <br /> official site file. (08124193) Exhibit N Page 2 of 2 <br /> i <br /> f <br /> i <br />