Laserfiche WebLink
4 <br /> Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> III Release and Site Characterization Information(continued) <br /> d 6 <br /> Maximum Documented Contaminant Concentrations,--Before and.Current <br /> Contaminant Soil Before (mg/kg) Water Before mglL Contaminant Soil Before (mglkg) Water Before (mglL) <br /> (mg/kg) After mg/L_ , 'After— mg/kg After m /L After <br /> TPH(Gas) X1.0 <.5 .098 <0.05' MTBE 0.201 .01 0.062 0.0093 <br /> TPH(Diesel) NA NA NA NA TBA <10 <.005 <0.02 <0.02 <br /> Benzene <0.005 <.005 <.0005 <0.0005 <br /> Toluene; <0.0436 <.005 <.0005 <0.0005 <br /> Ethyl benzene 0.0124 <,005 <.0005 <0.0005 <br /> Xylenes <0.0925 <.005 <.0005 <0.0005 <br /> Comments: Soil Before results are from piping sample PL9-5.5 collected on 11124199. Soil After results are from soil boring <br /> SB1 at 20 feet collected on 2121102. Water Before'results are from MW2 on 9/11102. Water After results are from MW2 on <br /> 11114105. <br /> NA:.Not-anal ed <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? Yes <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <br /> n <br /> Does corrective action protect public health for current land use? Yes <br /> ,j <br /> Site management requirements: None , <br /> E; <br /> Should corrective action be reviewed if land use changes? Yes <br /> MonitoringNapor wells decommissioned: 0 Number.Decommissioned: 0 Number retained: 3' <br /> List enforcement actions taken: NOR <br /> i - <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data.. <br /> q <br /> Name: Margaret Lagorio Title: Supervising RENS <br /> Signature: Date: l� 0z' <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> i <br /> Date Submitted to RB: Response Date: <br /> A <br /> RB Staff: James L.L. Barton Response: <br /> Title: Associate Engineering Geologist <br /> VII. Additional Comments, Data, etc. <br /> f <br /> This document and.the.related.CASE CLOSURE LETTER,Shall be retained by the lead agency aspart of the official <br /> site file.':. <br />