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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) 5.8 ND N/A N/A Xylene .122 ND N/A N/A <br /> TPH (Diesel) 2100 ND N/A N/A Ethylbenzene .05 ND N/A N/A <br /> Benzene .015 ND N/A N/A Oil & Grease N/A N/A N/A N/A <br /> Toluene ND ND N/A N/A Heavy metals N/A N/A N/A N/A <br /> Other N/A N/A N/A N/A Other N/A N/A N/A N/A <br /> Comments (Depth of Remediation, etc.) : <br /> SITE ASSESSMENT OF AREA AROUND SAMPLE 4 AND SAMPLE 8 FROM THE TANK REMOVAL FROM SURFACE <br /> TO AUGAR REFUSAL AT 25 FEET INDICATED THAT THERE IS NO CONTAMINATION LEFT IN PLACE FROM <br /> THE TANK REMOVAL. <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: NOTICE OF REIMBURSEMENT <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name:DONNA Title: DIRECTOR OF ENVIRONMENTAL HEALTH <br /> Signature: ^_�' Date: — 3 <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 />