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Case Closure Summary Page 2 <br /> Ling Underground Fuel Storage Tank Prom <br /> WI Release and Site Characterization Information (continued) <br /> FMMa7ximu7mlD�ocume�ntedContamnant Concentrations -'- Before and After Cleanup <br /> ntaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 560 <1 2.2 <.05: Ethylbenene 8.8 <.005 .240 <.0005. <br /> TPH (Diesel) NA NA NA NA Xylene 43 <.005 .710 <.0006 <br /> Benzene .03 <.005 .003 <.0005 MTBE <.025 <.005 <.001 <.Do1 <br /> Toluene .5 <.005 .0093 < 0005 1,2 DCA <.025. <.005 <.0005 <.0005 <br /> L <br /> ts: Soil Before results are from soil boring B1 at 10 feet ori 07124107. Soil After results are from MW2 at'10 feet on <br /> afer Before results are from B1-W on 7124107. Water After results are from all monitoring wells on 11111108. No <br /> was conducted for this"site. <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 reviewedif land use changes? Yes <br /> MonitoringNapor wells decommissioned: Yes Number Decommissioned: 3 Number retained: 0 <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna'Heran Title: Director of Environmental Health <br /> Signature: Date. <br /> 7- I� zG�� <br /> Vi. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 4130109 Response Date: 518109 <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 />