Laserfiche WebLink
Case Closure Summary ; <br /> Leng Underground Fuel Storage Tankrogram <br /> Page 2 <br /> 111 Release and Site Characterization Information continued <br /> Maximum Documented Contaminant Concentrations --Before Cleanup and Present Conditions <br /> Contaminant Soil (mg/kg) Water (mg/L) Contaminant Soil (mg/kg) Water (mg/L) <br /> Before After Before Aftert Before After Before After <br /> TPH (Gas) 6100 250 2.1 Ethylbenene 11 <0.05 .0079 <br /> TPH (Diesel) 8500 190 7.2 Xylenes 137 0.51 .063 <br /> Benzene <5 <0.05 <.0005 MTBE <5 <0.05 .018 <br /> Toluene <5 <0.05 <.0005 1,2-DCA <5 <0-05 .0027 <br /> EDB <5 <0.05 j <.0005 <br /> Comments: <br /> Soil Before results are from dispenser 1 sample collected 1117103. Soil After results are from boring 131 at 15 feet collected <br /> on 812104. Water Before results are from a grab sample from boring B1 collected on 812104. There are no after results <br /> because no further investigation was required after 812104. The extent of the contamination was defined by borings B2 and <br /> B3. <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 /> Does corrective action protect public health for current land use? Yes <br /> Site management requirements: None <br /> Should corrective action-be reviewed if land use changes? Yes <br /> MonitoringNapor wells decommissioned: NA Number Decommissioned: 0 Number retained: 0 <br /> t. <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> LLNaDonna Heron Title: Director of Environmental Health <br /> re: , Date: <br /> ,� <br /> VI. Central Valley Regional Water Quality Control Board RB Notification <br /> Date Submitted to RB: 4114106 Response Date: 5109106 i <br /> RB Staff: James L.L. Barton Response: Concurrence <br /> Title: Associate Engineering Geologist <br /> VII. Additional Comments, Data, etc. <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 /> I <br /> i <br />