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• Exhibit N Page 1 of 2 S%=N? <br /> o�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) NA NA NA NA Xylene ND ND .05 ND <br /> TPH (Diesel) ND ND ND ND Ethylbenzene ND ND ND ND <br /> Benzene ND ND .02 ND Oil & Grease ND ND 3.9 ND <br /> Toluene ND ND ND ND Heavy metals ND ND NA NA <br /> Other NA NA NA NA 10ther NA NA NA NA <br /> Comments (Depth of Remediation, etc.) : <br /> 3.9 PPM MOTOR OIL DETECTED IN GRAB WATER SAMPLE DURING REMOVAL. FINAL DIMENSIONS OF <br /> EXCAVATION WERE APPROXIMATELY 30X50X9 FEET. <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: <br /> NONE <br /> Should corrective action be reviewed if land use changes? Yes (No) <br /> Monitoring wells Decommisioned: (Yes) No Number Decommisioned: 4 Number Retained: 0 <br /> List enforcement actions taken: <br /> NOTICE OF REIMBURSEMENT <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name: DONN HERRN Title: DIRECTOR OF ENVIRONMENTAL HEALTH <br /> Signature: L r_T'4� I i Date: b <br /> VI. RWQCB Notification <br /> Date Submitted to RB: RB Response: <br /> RWQCB Staff Name: Title: Date: <br /> VII. Additional Comments, Data, etc. <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 />