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Raymond Greer M -2- % May 30, 2008 <br /> Claim No. 8525 <br /> B. Monitorin Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet bas) Feb 08 <br /> MW-1 Jan 99 69-89 73.16 <br /> MW-2 Jan 99 70-90 69.17 <br /> MW-3 Jan 99 70-90 69.66 <br /> MW-4 Jan 99 70-90 68.71 <br /> MW-5 Jul 00 70-90 73.21 <br /> MW-6 Jul 00 95-100 73.45 <br /> MW-8 Jul 00 70-90 74.61 <br /> MW-9 Jul 00 70-90 73.13 <br /> DW <br /> • MTBE THREAT CLASSIFICATION: B <br /> • LAND USE DESIGNATION: commercial and agriculture <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 PRGs Water (u/L WQOs <br /> Maximum Latest Residential Industrial Maximum Latest (ug/L) <br /> m /k (mg/kg) Feb 08 <br /> TPH-g NA NA NA NA 89,000 9,100 5 <br /> TPH-d NA NA NA NA NA NA 49 <br /> Benzene NA NA 0.64 1.4 13,000 810 0.15 <br /> Toluene NA NA 520 520 13,000 190 42 <br /> Eth (benzene NA NA 400 400 1,300 400 29 <br /> Xylenes NA NA 270 420 7,900 530 17 <br /> MTBE NA NA 32 70 890. 210 5 <br /> TBA NA NA NA NA 1 110 1 79 12 <br /> 1,2-DCA NA NA NA NA 530 1 500 0.5 <br /> Lead NA NA 400 800 NA NA 15 <br /> PCE NA NA 17 130 NA NA 0.06 <br /> TCE I NA NA 0.11 110 NA NA 0.8 <br /> PRGs USEPA Region 9 Preliminary Remediation Goals <br /> MCL Maximum Contaminant Levels <br /> AL Action Level <br /> NA Not Analyzed,Not Applicable,or Data Not Available . <br /> Woo Water Quality Objectives <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> California Environments/Protection Agency <br /> A <br /> ' �a Recyc%dPaper <br />