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se Closure Summary Page 2 <br /> Leakin#derground Fuel Storage Tank P 'am <br /> III. Release and Site Charact ization 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) Xylene <br /> TPH (Diesel) Ethylbenzene <br /> Benzene q Oil & Grease <br /> Toluene Heavy metals <br /> Other Other <br /> Comments (Depth of Remediation, etc.) : <br /> EXTENSIVE OVER-EXCAVATION AT TANK REMOVAL. ALL <br /> CONFIRMATION AND BOTTOM SOIL SAMPLES <DETECTION LIMITS FOR TPHG AND BTEX. SOIL HAULED <br /> TO LANDFILL AND PIT WATER ND AFTER SUN REMEDIATED. CLEAN BACKFIL AND NEW TANKS INSTALLED. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board <br /> Basin Plan? Yes <br /> Does completed corrective action protect potential beneficial uses per the Regional Board <br /> Basin Plan? Yes <br /> Does corrective action protect public health for current land use? Yes <br /> Site management requirements: POSSSIBLY POST MONITORING <br /> Should corrective action be reviewed if land use changes? No <br /> Monitoring wells Decommisioned: NOT YET Number Decommisioned: Number Retained: 3 <br /> List enforcement actions taken: <br /> NOR, 5/21/93 <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name: Title: SUPERVISOR, LOP <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 /> C� cam.. �IZGlJ 2kw <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 />