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y <br /> h Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> ;I <br /> III Release and Site Characterization Information (continued) <br /> �1 , <br /> Maximum Documented Contaminant Concentrations-- Before and After Cleanup <br /> ij <br /> k <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH(Gas) <1 <1 <.05 Ethyibenene <.005 <005 <.0003 <br /> TPH(Diesel) 10,000 <1 <.05 Xylene ? <.005 <.005 <.0006 <br /> Benzene <.005 <.005 <.0003 <br /> Toluene <.005 <.005 <.0003 MTBE ! <.010 <.010 <.001 <br /> If <br /> Comments: All levels in ppm. Soil Before levels from UST removal at 12 feet below grade on 11129101. Soil After levels <br /> are from after a limited overexcavation of UST area was performed and were collected at 14 feet below grade on 1216101. <br /> i Groundwater After levels are from grab samples of water in excavation after limited overexcavation on 1216101. <br /> I <br /> IV. Closure ' <br /> I} <br /> Does completed corrective action protect existing beneficial uses per the IRegional Board Basin Plan? Yes <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan? Yes <br /> E Does corrective action protect public health for current land use? Yes <br /> I� <br /> Site management requirements: None IE <br /> Should corrective action be reviewed if land use changes? No a <br /> Ij <br /> Monitoring/Vapor wells decommissioned: NA Number Decommissioned: Number retained: <br /> List enforcement actions taken: NOR <br /> I � <br /> List enforcement actions rescinded: None i1 <br /> �j <br /> V_ Local Agency Representative Data <br /> Name: Donna Heran Title: Director of Environmental Health <br /> E <br /> ii 1 <br /> i Signature: Date: I [7 <br /> VI. Central Val ey Regional Water Duality Control Board (RB) Notification <br /> Date Submitted to RB: 2123102 Response Date: 317102 <br /> RB Staff: Marty Hartzell Response: Concurrence <br /> Title:Associate Engineering Geologist <br /> VI1. Additional Comments, Data, etc. I <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the official <br /> site tile. <br /> �,Ik <br />