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I' Mohammed Mater -2- August 2 , 2010 <br /> Claim No . 14840 <br /> B . Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s) Jan 2010) <br /> MW- 1 Mar 04 35-55 25 . 96 <br /> MW-2 Mar 04 25-45 25 . 68 <br /> MW-3 Mar 04 35-55 25 . 75 <br /> MW-4 Mar 04 30-50 25 . 79 <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 (ug/L WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> Jan 2010 <br /> TPH-g NA NA 82, 000 24, 000 5 <br /> TPH-d NANA NA NA 56 <br /> Benzene NA NA 18, 000 51000 0. 15 <br /> Toluene NA NA 41500 25 42 <br /> Eth (benzene NA NA 13100 22 29 <br /> Xylenes NA NA 5,200 58 17 <br /> MTBE NA NA 202000 11900 5 <br /> TBA NA NA < 10 < 10 12 <br /> 122-DCA NA NA 190 7.6 0 .4 <br /> Lead NA NA NA NA 15 <br /> PCE NA NA NA NA 0. 06 <br /> TCE NA NA NA NA 0 . 8 <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 : approximately 175 cubic yards of contaminated soil were <br /> excavated in April 2000 . <br /> B. In -Situ Soil/ Groundwater Remediation : <br /> • METHOD : dual phase extraction (DPE) pilot test conducted , DPE proposed . <br /> CaBforaia Eaviroameatal Protection Agency <br /> :d RecydedPaper <br />