Laserfiche WebLink
Case Closure Summary Page"2 iw <br /> Leaking Underground Fuel Storage Tank Program <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations --Before and After Cleanup <br /> w <br /> 4 Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 2000 2000 27.9 1.9 Xylene It 100 100 8.61 .150 <br /> TPH (Diesel) 4800 4800 6.73 <.050 Ethylbenzene 11 11 1.14 .030 <br /> Benzene <1.2 <1.2 <.05 <.0005 Oil &Grease <br /> Toluene 1.7 1.7 .143 <.0005 Heavy Metals Pb15 15 <br /> MTBE i) <1 <1 <.05 <,002 <br /> it. <br /> t <br /> Comments: Above soil data before and after is taken from soil boring SB8-25', except lead is from SB6-5'. No soil <br /> remediation was performed. Water Before levels are from MW2 on 1129199. Water After levels are from MW2 on 4112102. ` <br /> 7500 gallons of groundwater were removed. <br /> IV. Closure f <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 0: <br /> r Site management requirements: none <br /> i� <br /> Should corrective action be reviewed if land use changes? no <br /> Monitoring/Vapor wells decommissioned: no Number Decommissioned: Number retained: 5 MWs <br /> List enforcement actions taken: NOR <br /> List enforcement actions rescinded: t <br /> V. Local Agency Representative Data i r. <br /> Name: Margaret Lagorio Title: Supervising REHSISite Mitigation/LOP Unit IV <br /> F Signature: Date: Q "L <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> i <br /> Date Submitted to RB: Response Date: <br /> RB Staff: M. Hartzell Response: <br /> Title:Assoc Eng Geologist <br /> VII. Additional Comments, Data, etc. <br /> Groundwater contamination localized near MW#2, no benzene detected.: <br /> iI <br /> r <br />