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Rainwater Carwash -3- 90 May 5, 2009 <br /> Claim No. 14719 <br /> MW-13a Sep 02 30-35 - <br /> MW-13b Sep 02 60-65 - <br /> MW-13c Sep 02 85-90 - <br /> MW-13d Sep 02 115-120 - <br /> MW-13e Sep 02 138-145 - <br /> MW-13f Sep 02 165-170 <br /> • LAND USE DESIGNATION: residential and commercial <br /> • ESTIMATED WATER QUALITY OBJECTIVES (WQO'S) FOR SITE: Per the <br /> Water Quality Control Plan (Basin Plan) for the Sacramento River Basin and the <br /> San Joaquin River Basin (Fourth Edition). <br /> IV. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WQOs <br /> Maximum Latest Shallow Industrial 2 Maximum Latest (ug/L) <br /> Soil' (Jun 08) <br /> Residential Dermal <br /> m /k (mg/kg) <br /> TPH-g NA 83 450 190,000 40,000 5 <br /> TPH-d NA NA 83 450 8,100 NA 56 <br /> Benzene NA NA 0.044 0.27 18,000 120 0.15 <br /> Toluene NA NA 2.9 210 28,000 280 42 <br /> Eth (benzene I NA NA 2.3 1 5.0 5,200 1,400 29 <br /> Xylenes NA NA 2.3 100 28,000 9,200 17 <br /> MTBE NA NA 0.023 65 2,000,000 8,100 5 <br /> TBA NA NA 0.075 320,000 8.3 <10 12 <br /> 1,2-DCA NA NA 0.0045 0.48 130 10 0.4 <br /> Lead NA NA 200 750 NA NA 15 <br /> PCE NA NA 0.37 0.95 4,900 NA 0.06 <br /> TCE NA NA 0.46 4.1 46 NA 0.8 <br /> 1 Environmental Screening Levels(ESLs)Shallow Soil<3m,Groundwater is source of Drinking Water. <br /> 2 ESLs,Shallow Soil Screening Levels,Groundwater not source of Drinking Water, Commercial Use, Direct Exposure, <br /> Worker <br /> NA Not Analyzed, Not Applicable, or Data Not Available <br /> WOO Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: none identified <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />