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I J <br /> f <br /> Case Closure Summary Page 2 <br /> r Leakir- Underground Fuel Storage Tank F -gram <br /> III. Release and Site Characterization information (continuec,;_,,* <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Plater ( m) <br /> Before After Before- After Before After Before After <br /> TPH (Gas) 160 ND Xylene 4.4 ND <br /> TPH (Diesel) 360 6.8 Ethylbenzene .46 ND <br /> Benzene ND ND Oil & Grease <br /> Toluene ND ND Heavy metals <br /> Other Other <br /> Comments (Depth of Remediation, etc.) : <br /> Excavated contaminated soil to a depth of 16 feet below grade. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board <br /> Basin Plan? (Yes) No <br /> Does completed corrective action protect potential beneficial uses per the Regional Board <br /> Basin Plan? (Yes) No <br /> Does corrective action protect public health for current land use? (Yes) No <br /> Site management requirements: None <br /> i <br /> Should corrective action be reviewed if land use changes? Yes (No) <br /> Monitoring wells Decommisioned: Yes No Number Decommisioned: Number Retained: <br /> List enforcement actions taken: NOR sent 11/29/95 <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna an Title: Director Environmental Health <br /> Signature: Date: -7-9 <br /> VI. RWQCB Notification <br /> Date Submitted to RB: RB Response: <br /> RWQCB Staff Name: Title: Date: <br /> VII. Additional Comments, Data, etc. <br /> SOIL ONLY <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency <br /> as part of the official site file. (08/24/93) <br /> Exhibit N Page 2 of 2 <br />