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'Rainwater Carwash • -3- • December 20, 2010 <br /> Claim No. 14719 <br /> MW-12f Sep 02 165-170 17.66 <br /> MW-13a Sep 02 30-35 17.63 <br /> MW-13b Sep 02 60-65 17.81 <br /> MW-13c Sep 02 85-90 17.81 <br /> MW-13d Sep 02 115-120 17.82 <br /> MW-13e Sep 02 138-145 17.81 <br /> MW-13f Sep 02 165-170 17.81 <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 Water u /L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> (Aug2010 <br /> fP H--g NA NA 190,000 26,000 5 <br /> TPH-d NA NA 8100 NA 56 <br /> Benzene NA NA 18,000 52 0.15 <br /> Toluene NA NA 28,000 160 42 <br /> Eth (benzene I NA NA 5,200 1,100 29 <br /> Xylenes NA NA 28,000 3,600 17 <br /> MTBE NA NA 2,000,000 640 5 <br /> TBA NA NA 8.3 <50 12 <br /> 1,2-DCA NA NA 130 <0.5 0.4 <br /> PCE NA NA 4,900 NA 0.06 <br /> TCE NA NA 46 NA 0.8 <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> mg/kg: milligrams per kilogram, parts per million <br /> ug/L: micrograms per liter, parts per billion <br /> WOOS: Water Quality Objectives <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: soil vapor extraction proposed <br /> C. Groundwater Remediation: <br /> • METHOD: groundwater extraction <br /> • DURATION: Jan 02 through present <br /> • VOLUME OF GROUNDWATER REMOVED: 11,228,383 gallons (Mar 2010) <br /> • MASS OF MTBE REMOVED: 335 pounds (Mar 2010) <br /> • RATE OF MTBE REMOVAL: 0.3 pounds/month <br /> • ESTIMATE OF REMAINING MASS IN GROUNDWATER: 8.9 pounds <br /> California Environmental Protecdon Agency <br /> C4 Recyc%d Papec <br />