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Leaking Underground f=uel Storage Tank Program <br /> Case Closure Summary Page 2 <br /> Release and Site Characterization Information (continued) After Cleanup <br /> Il Before and <br /> (PPM) Water (PPM) <br /> Maximum Documented Contaminant Concentrations-' Contaminant Soil Before <br /> Water (PPM) Before After 0027 <br /> Soil (PPM) After 1920 .002 <br /> contaminant After Before ,170 Xylene 1920 308 .0011 .00Ofi7 <br /> Before <br /> 16200 16200 .440 Ethylbenzene 308 <br /> TPH(Gas) Oil&Grease <br /> TPH(Diesel) <.0005 <.0003 Metals .005 <br /> Benzene <.001 .0031 Heavy 099 .Ogg .042 <br /> Toluene <br /> 49.2 49.2 MTBE -It <br /> 11 <br /> 0 feet be I'll <br /> W grade on <br /> nu was not performed. The Soil Before and the Soil r wh u sis fro <br /> MWare from B ont128/ 01. The <br /> Comments: Cleanup t Water After <br /> 4/14/97. The Water Before results are from MW2 on 5111/00 except <br /> results are from MW1 or MW2 on 4119101. CVRWQCB concurrence letter is dated Oct. 10, 2001. <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 reviewed if land use changes? Yes <br /> Monitoring/Vapor wells decommissioned: Yes Number Decommissioned: 4 Number retained: 0 <br /> List enforcement actions taken: level 1 <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: Donna Heran Title: Director of Environmental Health <br /> Signature: Date: <br /> VI. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to RB: Sept. 10, 2001 Response Date: Oct. 10, 2001 <br /> RB Staff: M. Hartzell Response: Concurred w/Clsoure <br /> Title: Assoc Eng Geologist <br /> VII. Additional Comments, Data, etc. <br /> 11 1 <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 />