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<br /> Case Closure Summary
<br /> 4315 E. Waterloo Rd.
<br /> Treatment and Disposal of Affected Material
<br /> Material Amount(Units) Action(Treatment or Disposal%v/Destination) Date
<br /> Tank(s) 1 @ 7,000gallon Disposed: Erickson, Inc, 121711994
<br /> 2 @ 5,000galon 255 Parr Blvd., Richmond, CA 94801
<br /> 1 @ 8,000gallon
<br /> 1 @ 550 gallon (No manifest removed 12/8/1986) 12/8/1986
<br /> 2 15,000 Vasco Road Landfill, 401 N Vasco Rd, Livermore, CA 94551 3/18/2005
<br /> Piping Unknown West Valley MRF, 13373 Napa St., Fontang, CA 92335 3/18/2005
<br /> 180 feet Ecology Control Industries, 13738 Slover Ave., Fontana, CA 3/30/2005
<br /> Soil 700 cubic yards BFI, Keller Canyon Landfill, Pittsburg, CA(no manifest) 12/20/1994
<br /> 40 cubic yards Forward Inc. Landfill, Manteca, CA(no manifest) 1/12/1995
<br /> 90 cubic yards Forward Inc. Landfill, Manteca, CA 12/20/1994
<br /> 370 cubic yards Forward Landfill, Manteca, CA 3/30/05-5/5/05
<br /> Groundwater
<br /> Waste Gasoline 900 gallons Demenno Kerdoon, 2000 N Alameda St., Compton, CA 90222 3/23/2005
<br /> Mixture
<br /> III. Release and Site Characterization Information continued
<br /> Maximum Documented Contaminant Concentrations-- Before and After Cleanup
<br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water Before (ppm)
<br /> Before After Before After Before After After
<br /> TPH (Gas) 20,000 NA 0.78 0.41 Xylene 630 NA <0.0005 <0.001
<br /> TPH (Diesel) NA NA NA NA Ethylbenzene 130 NA <0.0005 <0.0005
<br /> TPH(Motor Oil) NA NA NA NA Lead (Pb) 18 NA NA NA
<br /> Benzene 5.9 NA <0.0005 <0.0005 MTBE 15 NA 2.7 0.19
<br /> Toluene 74 NA <0.0005 <0.0005 1,2 DCA 0.018 NA 0.29 0.23
<br /> Comments: Soil Before: TPHg from product line excavation PL-7 @ 2' bsg on 12/7/94. Benzene from stockpile SP-4 on
<br /> 12/7/94. MTBE from SB-2 @ 21 ' on 2/21/96. 1,2, DCA from SB-13 @ 60' on 12/13/05.Toluene and ethylbenzene from
<br /> product line excavation PL-4 @ 2' bsg on 12/7/94. Xylene from tank pit excavation T5000BW @ 16' bsg on 12/7/94. TPHg
<br /> and TPHd not analyzed Soil After: No Soil After results taken. Water Before: TPHg from MW-1 on 12/22/01.
<br /> Benzene,toluene,ethyl benzene and xylene taken from MW-1 on 10/27/99. MTBE from MW-1 on 6/1/05. 1,2 DCA from
<br /> MW-5 on 6/3/09. TPHd, TPHmo and lead not analyzed. Water After: TPHg, benzene, toluene, ethylbenzene, xylene, MTBE
<br /> from MW-1 on 5/1/13. 1,2 DCA from MW-5 on 5/1/13. TPHd, TPHmo and lead not analyzed. NA= Not Analyzed
<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/Remediation !Hells Decommissioned? Yes Number Decommissioned: 10 Number retained: 0
<br /> List enforcement actions taken: NOR 12/23/94, 6/6/08, 10/6/09
<br /> List enforcement actions rescinded: NONE_
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