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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) 150. <0.050 Ethyl-benzene 0.023 0.001 <br /> TPH (Diesel) 2,500. 0.5 Xylene 0.078 0.002 <br /> Benzene 0.01 0.001 <br /> Toluene 0.02 <0.0005 <br /> MTBE 1<0.005 1 1<0.005 <br /> Comments NOTE; GROUNDWATER RESULTS IN PARTS PER MILLION! <br /> No remediation conducted or required. <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? NO CAP REQ'D <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? N/A <br /> Does corrective action protect public health for current land use? N/A <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes? YES <br /> Have the Monitoring/Vapor wells been decommissioned? N/A Number Decommissioned: 0 Number retained: 0 <br /> List enforcement actions taken: NORR, 09JUN92 <br /> List enforcement actions rescinded: none <br /> V. Local Agency Representative Data <br /> Name: Donna Heran/Margaret Lagorio Title: Director of Environmental Health/LOP Supervisor <br /> Signature: —MP-A� 011--�- - - Date: q $ ClG <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB:-10sept99 Response Date: <br /> RB Staff: Mark List Response: <br /> Title:. Engineering Geologist <br /> VII. Additional Comments, Data, etc. <br /> "simple'soil site with no remediation done or required. Last soil hit at 31' bgs and non-detect to groundwater at <br /> 68' bgs. TPH-D and BTEX as shown above in grab groundwater sample. <br /> This document and the related CASE CLOSURE LETTER,shall be retained by the lead agency as part of the official <br /> site file. <br /> MI/9/99 <br />