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Case Closure Summary Page 2 <br /> LeakUnderground Fuel Storage Tank gram <br /> III. Release and Site Char rization Information (continue <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)- 680 ND Xylene 46 ND <br /> TBH (Diesel) 11,000 13 8thylbenzene 9.8 ND <br /> Benzene 2.3 ND Oil & Grease <br /> Toluene 16 ND Heavy metals <br /> Other Other <br /> Comments (Depth of Remediation, etc.) : No remediation was required at this site. The <br /> only contamination evidenced was beneath piping in a dispenser area. The soil boring <br /> soil sample results indicated there was limited soil contamination which did not <br /> require remediation. "Soil before" results above are from beneath the dispenser area <br /> at 5t below grade. "Soil after" results are from 35' 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 /> 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 1/4/95 <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Margaret Lagorio Title: Supervising RENS <br /> Signature: Date: <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 ONLY1 <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 />