Laserfiche WebLink
USA Petroleum -2- March 2, 2009 <br /> Claim No. 6090 <br /> B. Monitorin Well Information <br /> Well Designation Date Installed Screen interval Most Recent DTW <br /> (feet bgs) (Jul ) <br /> MWA Dec 98 ?-59 48.82 <br /> MW-2 Mar 99 ?-59 50.29 <br /> MW-3 Mar 99 ?-58 49.$2 <br /> MW-4 Mar 99 ?-57 49.51 <br /> MW-6 Mar 99 ?-58 51.15 <br /> MW-7 Mar 99 ?-58 51.26 <br /> MW-8 Mar 99 ?-58 49.50 <br /> MW-9 Se 00 ?-47 <br /> MW-10 May 00 ?-48 Dry <br /> S-1 Mar 99 ?-46 Dry <br /> S-2 Mar 99 ?-50 Dry <br /> • MTBE THREAT CLASSIFICATION: N <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 /> 1V. MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS <br /> Contaminant Soil m /k ESLs Water (ug/L WQOs <br /> Maximum Latest Shallow z Maximum Latest (ug/L) <br /> Soils Industrial (Jul 08) <br /> Residential Dermal <br /> m /k (mg/kg) <br /> TPH-g NA NA 83 450 15,000 <50 5 <br /> TPH-d NA NA 83 450 NA NA. 56 <br /> Benzene NA NA 0.044 0.27 1,200 <0.5 0.15 <br /> Toluene NA NA 2.9 210 . 210 <0.5 42 <br /> Eth lbenzene NA NA 2.3 5.0 1 270 <0.5 29 <br /> Xylenes NA NA 2.3 100 1,200 <0.5 17 <br /> MTBE NA NA 0.023 65 16,000 <0.5 5 <br /> TBA NA NA 1 0.075 320,000 8,000 <10 12 <br /> 1,2-DCA NA NA 0.0045 0.48 NA NA 0.4 <br /> Lead NA NA 200 750 NA NA 15 <br /> PCE NA NA 0.37 0.95 NA NA 0.06 <br /> TCE NA NA 0.46 4.1 NA 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 /> WQO Water Quality Objectives <br /> FP Free phase product in site wells <br /> V. FREE PRODUCT: none identified <br /> California Environmental Protection Agency <br /> •u <br /> Qa Recycled Paper <br />