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r Case Closure Summary Page 2 <br /> Leaking erground Fuel Storage Tank Prom <br /> III. ' Release and Site Characteation 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) 3400 ND .55 ND Xylene 290 ND .014 ND <br /> TPH (Diesel) NA NA NA NA Ethylbenzene 53 ND .094 ND <br /> Benzene 11 ND .11 ND oil & Grease 640 ND ND ND <br /> Toluene 44 ND .001 ND Heavy metals ND ND ND ND <br /> Other IND ND ND Other ND ND ND ND <br /> Comments (Depth of Remediation, etc.) : <br /> 3 LIST'S WERE REMOVED, CONTAMINATED SOIL EXCAVATED AND DISPOSED. <br /> CONFIRMATION SAMPLING OF SOIL AND GROUNDWATER WAS BELOW DETECTION LIMIT'S <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 publichealth for current land use? (Yes) No <br /> Site management requirements: <br /> i <br /> Should corrective action be reviewed if land use changes? (Yes) No <br /> Monitoring wells Decommisioned: � Number Decommisioned:- Number Retained: ` - <br /> List enforcement actions taken: <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: DONNA HERAN y Title: DIRECTOR OF ENVIRONMENTAL HEALTH <br /> Signature: —{ ,L 4% v��,t Date: <br /> VI. RWQCB Notification <br /> b. <br /> Date Submitted to RB: ' RB Response: <br /> RWQCB Staff Name:E THAYER Title:ASSOC ENGINEER Date: <br /> VII. Additional Comments, Data, etc. <br /> Y <br /> i <br /> s <br /> r <br /> s <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 /> j <br />