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Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> It Release and Site Characterization Information(continued) <br /> Maximum Documented Contaminant Concentrations --Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppb). Contaminant Soil (ppm) Water (ppb) <br /> Before After Before Ager Before After Before After <br /> TPH (Gas) NO NO NO No Ethyl Benzene NA NO ND ND k <br /> TPH (Diesel) NO NO NO NO Xylene ND NO ND ND } <br /> Benzene NO NO ND NO Oil&Grease NO NA NA NA. <br /> Toluene ND NO ND NO Lead 5.5 NA NA NA <br /> Comments: <br /> All soil samples analyzed for TPH as gasoline and BTEC from confirmation scii.bcrings on 62W6 are nondetect. <br /> NA-No additional samples submitted or analyzed. <br /> V. 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? No. Current LUC,commercial. <br /> Site management requirements: None. <br /> Should carrective action be reviewed if land use changes?No. j <br /> Monitoring wells decommissioned: None: Number retained:(0) iI <br /> List enforcement actions taken: NCR sent 6/15/94 j <br /> Ust enforcement actions rescinded: None. f } <br /> 1 <br /> Local Agency Representative Data <br /> Name: Donna Heran I Title:. Director of Environmental Health ; <br /> Signature Date: <br /> i <br /> I. Central Valley Regional Water Quality Control Board(R8)Notification <br /> Date Submitted to RB: �/ r 1�+�� Response Date: <br /> R8 Staff:.!. Brathovde Response: <br /> Title:Assoc. Eng. Geologist <br /> II. Additional Comments, Data,etc. <br /> No petroleum hydrocarbons detected from confirmation soil boring samples. <br /> his document and the related CASE CLOSURE LETTER,Shall be retained by the lead agency.as part of the official site file. <br /> 08124193) Exhibit N Page 2 of 2 <br /> t• <br /> 3 <br />