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Case Closure Summary Page 2 <br /> Leakir 7nderground Fuel Storage Tank r 3ram <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) 2000 ND Eylono 150 ND <br /> TPH (Diesel) 770 ND Ethylbenzene 4.8 ND <br /> Benzene <.3 ND Oil & Grease <br /> Toluene .49 ND Heavy metals <br /> Other Other <br /> Comments (Depth of Remediation, etc.)• <br /> ' Former tank pit excavated from 7' deep to 15' deep. Contaminated soil in small area <br /> from 7' to 9' depth. Stockpiled soil was sampled and results indicated the soil <br /> could be place back in the excavation. <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 mailed 6/6/94 <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna Heran Title: Director Environmental Health Division <br /> Signature: Date: 7—/ _ <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 />