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r <br /> �. Case Closure Summary Page 2 <br /> aking Underground Fuet Storage Tank Pr <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 /> B lore After Before After Before After Before After <br /> TPH (Gas) 49 Z6 E±thylbermene NA .005 <br /> TPH (Diesel) Xylene t8 1 <br /> Benzene 2 NO all&Grease <br /> Toluene 2 .009 Heavy Metals <br /> Mineral Spirits Lead 9.9 NA <br /> MTBE NA .029 <br /> LComcmentrss (Depth of Remediation, etc.): <br /> losue based on results of 11113197 preliminary investigation which indicated minor contamination <br /> ZV. 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 Pian? (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) i <br /> Monitoring wells decommissioned: Yes Number Decommissioned: Number retained: <br /> List enforcement actions taken: NOR sent <br /> li <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Don a Heran Title: Director of Environmental Health <br /> Signature: Date: _ p_9 7 <br /> V1. Central Valley Regional Water Qualit}r Control Board (RS) Notfic;aticn <br /> Date Submitted to R8: l °t 1 Response Date: S <br /> RB Staff. J. Brathovde Response: <br /> Title: Assoc Eng Geologist cure <br /> VII. Additional Comments, Data,etc. <br /> I <br /> Soil Only <br /> This document and the related CASE CLOSURE LEITER,Shall be retained by the lead agency as part of the officio! <br /> site file_ (08124193) Exhibit N Page 2 of 2 <br />