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• Case Closure Summary Page 2 �•E <br /> Leaking Underground Fuel Storage Tank Program <br /> 111 Release and Site Characterization Information(continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> m Water (Ppm) Contaminant Soil (pPm) Water (Ppm) <br /> Contaminant Soil <br /> (ppm) - Befor+a..__..._ - After _.. _ - Before After - <br /> Before After Before After - O.00S -.0.005 -.OAO <0.0{l05 <br /> TPH(Gas) 1,700 290 s 13 4 0.15 MTBE <0.5�1<5.0� -.0.005!<0.050s -.0.0204 -.0.005' <br /> a <5.0 <0.050 NA pxygenates s s <br /> TPH(Kerosene) 42 �,z i,2-DCA NA -.0.005 <0.00e c0.0005a <br /> TPH(Diesel) <5.0's ► s 65 , -.NOA�53 BDB NA <0.005s -.0.0024 <0.0005 <br /> Benzene <0.005 0.024 <br /> 0.005 s + -.4.00053 Ethanol NA -.0.250 NA <br /> Toluene 3.0 0.51 0.080 NA -.0,5044 NA <br /> Eth benne 101 0.6s 0.085 0.0012' Methanol NA 0.250' NA <br /> r2- <br /> 20+ 3.7° 0.286' -.0.001' Lead 35 NAomments:Active remediation was not perfom}ed at this site. A!1'Before'andAfter= results reported in parts per million. <br /> A:Not analyzed <br /> `Before'concentrations from tank pull results. <br /> Laboratory identified contaminant as kerosene instead of diesel based on chromatogram pattern. <br /> 3:Water'After' concentrations from 03/30/04 quarterly well sampling. <br /> 4:Water concentrations from 11/27/01 quarterly well sampling. <br /> 5'Soil concentration from monitoring well installations. <br /> 6: 'After concentrations from soil boring SBI)advanced on 3116104. <br /> N.Closure <br /> E <br /> ted corrective action protect existing beneficial uses per the Regional Board Basin Pian? Yes <br /> ted corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <br /> tive action protect public health for current land use? Yes <br /> Fu <br /> e management requirements: None <br /> ould corrective action be reviewed if land use changes? Yes <br /> onitoringlVapor wells decommissioned: Yes Number Decommissioned: 3 Number retained: 0 <br /> List enforcement actions taken: NOR August 7,2001 <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: Donna Horan, REHS Title: Director,Environmental Health Department <br /> Signature: Date: <br /> VI. Central Valley Regional Water Quality Control Board(RB)Notification <br /> Date Submitted to RB:July 22,2004 Response Date:August 3,2004 <br /> RB Staff:James L.L. Barton Response: No further action required concurrence,Souza <br /> Title:Associate Engineering ., eol2gist II LLC <br /> VII. Additional Comments, Data, etc. <br /> This document and the related CASE CLOSURE LETTER,Shall be reta)ned by the lead agency as part of the official <br /> site file. <br />