Laserfiche WebLink
Case Closure Summary Page 2 <br /> (' ti Leaking Underground Fuel Storage Tar� --rogram <br /> III Release and Site Characterization Information (continued) <br />! Maximum Documented Contaminant Concentrations --Before and After Cleanup <br /> Ij 1 <br /> Contaminant Soil (ppm) Water (ppm) Contaminant I Soil (ppm) Water (ppm) <br /> Before After Before After I Before After Before After <br /> TPH (Gas) 5,350 810 NO NO Xylene I 115,000 60 NO NO <br /> TPH (Diesel) NIA NIA NIA NIA Ethylbenzene 20,000 23 NO NO <br /> Benzene 1,000 9.4 NO NO Oil &Grease NIA NIA NIA NIA <br />{, Toluene 1,800 1.7 NO NO Heavy Metsls NI/A NIA NIA NIA <br /> MTBE UNK 5.5 ND NO <br /> Comments: THE CONTAMINATED AREA WAS EXCAVATED TO GROUNDWATER AT 23' BGS. DUE TO PUBLIC <br /> ROAD AND STORE BUILDING; SOIL RESIDUAL REMAINS AT 20' BGS WITH NO IMPACT TO GROUNDWATER (2 ON <br /> SITE GEO PROBE WATER SAMPLES COLLECTED NOVEMBER 12,-1996 BY ADVANCED G EOENVI RON MENTAL, <br /> INC.) <br /> li I <br /> I <br /> i <br /> I � f <br /> 1V. Closure I' <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 /> ,I <br /> Does corrective action protect public health for current land use? YES <br /> 4 Site management requirements: <br /> � I <br /> Should corrective action be reviewed if land use changes? YES <br /> Monitoring/Vapor wells decommissioned: Number Decommissioned: Number retained: <br /> List enforcement actions taken:. LEVEL ONE, NOR MAILED TO RESPONSIBLE PARTY <br /> I� <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br />. <br /> Name: MARGARET LAGORIO Title:SUPERVISING REHSISITE MITIGATION-LOP UNIT <br /> Signature: Date: <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: Response Date:l <br /> 11. <br /> RB Staff. J. Brathovde Response: <br /> Title: Assoc Eng Geologist I <br /> VII. Additional Comments, Data, etc. # <br /> I� <br /> This document and the related CASE CLOSURE LETTER,Shall be reta'ined by the lead agency as part of the official <br /> site file. <br />