Laserfiche WebLink
Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program 4 <br /> III Release and Site Characterization Information (continued) <br /> I <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup k <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) I <br /> Before After Before After Before After Before After <br /> TPH (Gas) 15,000 97 29 .570 Ethylbenene 330 .031 .910 >.0005 <br /> TPH (Diesel) Xylene 2,100 .24 3.9 .0015 <br /> Benzene 15 >.005 1.9 >.0005 TCE <br /> Toluene 220 .:18 5 >.0005 PCE <br /> MTBE >10 >.05 NA >.001 <br /> i <br /> Comments: SOIL BEFORE Results for TPH-g, MTBE, Xylene and EthylBenzene are from VW5 at 15 feet, Benzene and <br /> Toluene are from B1 at 30 feet. SOIL AFTER Results are from CB1 at 35 feet. WATER BEFORE Results are from MW2 <br /> on 3116195. WATER AFTER Results are from IAS2 on 4127101. Vapor extraction/air sparging was performed at the site <br /> from 912199 until 1123101 and 133.5 gallons of gasoline were removed. <br /> IV. Closure <br /> 0 <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 /> L <br /> Site management requirements:'None i <br /> Should corrective action be reviewed if land use changes? Yes <br /> Monitoring/Vapor wells decommissioned: Yes Number Decommissioned: 14 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 List enforcement actions rescinded: 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: vYtM Date: o <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: 717101 Response Date: 7130101 <br /> RB Staff: Marty Hartzell 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 /> { <br />