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Case Closure Summary Page 2 <br /> Leakit lUnderground Fuel Storage Tank � YY'gram <br /> III. Release and Site Charabefirization Information (continued7� <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) 11900 100 ND ND Xylene 91.0 0.009 ND ND <br /> TPH (Diesel) N/A N/A N/A N/A Ethylbenzene 2.0 im !ND ND <br /> Benzene ND ND ND ND Oil & Grease N/A N/A, N/A N/A <br /> Toluene 2.3 ND ND ND Lead <3 <3 N/A N/A <br /> Other Other <br /> Comments (Depth of Remediation, etc.) : <br /> 4 SOIL BORINGS AND 1 MW INSTALLED. 100 PPM GASOLINE DETECTED IN ONE BORING (SB-3) AT 10' , <br /> ND AT 6' AND 151 . MW WAS ND FOR GASOLINE AND BTEX. <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 /> Should corrective action be reviewed if land use changes? (Yes) No <br /> Monitoring wells Decommisioned: Yes (No) Number Decommisioned:, 0 Number Retained: .1 <br /> List enforcement actions taken: LEVEL 1, NOR SENT TO RESPONSIBLE PARTY. <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: MARGARET LAGORIO Title: SUPERVISOR LOP/SITE MITIGATION <br /> Signature: Date: 31 1319' ] <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 /> i <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 />