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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 After <br /> TPH (Gas) NT NT NT NT Ethylbenzene .26 .26 ND ND <br /> TPH (Diesel) 12,000 12,000 .51 .51 Xylene .52 .52 ND ND <br /> Benzene ND ND ND ND Oil &Grease NT NT NT NT <br /> Toluene ND ND ND ND Heavy Metals NT NT NT NT <br /> Mineral Spirits NT NT NT NT Lead NT NT NT NT <br /> MTBE NT NT NT NT <br /> Comments (Depth of Remediation, etc.): <br /> Diesel only, low risk site, closure based on results of preliminary investigation <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? (Yes) <br /> Monitoring wells decommissioned: (No) Number Decommissioned: 0 Number retained: 0 <br /> List enforcement actions taken: NOR sent <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Don Heran Title: Director of Environmental Health <br /> Signature: , Date: 3 -9 <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 11/19/97 Response Date: 12/19/97 <br /> RB Staff: P. Anderson Response: Concurrence <br /> Title: Assoc Eng Geologist <br /> VII. Additional Comments, Data, etc. <br /> low risk site based on results of preliminary investigation <br /> i <br /> i! <br /> 1' <br /> b <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the <br /> official site file. (08/24/93) Exhibit N Page 2 of 2 <br />