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Manna Pro Corp. �` -2- ~ August 16, 2010 f <br /> Claim No. 678 <br /> B. Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> feet b s Mar 2010 <br /> MW-1 Oct 91 41-51 25.70 <br /> MW-2 Oct 91 41-51 26.67 <br /> MW-3 Oct 91 41-51 26.50 <br /> MW-4 Oct 91 40-49 26.33 <br /> MW-5 Oct 91 30-50 27.50 <br /> MW-6 Oct 91 30-50 26.35 <br /> MW-7 Feb 93 30-42 - <br /> MW-8 Feb 93 30-42 26.21 <br /> MW-9 Feb 93 30-42 26.08 <br /> MW-10 Feb 93 30-42 25.80 <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 /> Mar 2010 <br /> TPH-g NA NA 170,000 51,000 5 <br /> TPH-d NA NA ND NA 56 <br /> Benzene NA NA 42,000 9,600 0.15 <br /> Toluene NA NA 51,000 8,100 42 <br /> Eth (benzene NA NA 3,200 1,300 29 <br /> Xylenes NA NA 18,000 4,400 17 <br /> MTBE NA NA ND NA 5 <br /> TBA NA NA NA NA 12 <br /> 1,2-DCA NA NA NA NA 0.5 <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 /> WQO 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: 4,000 cubic yards of contaminated soil were excavated <br /> California En vironmeatal Protection Agency, <br /> �i,r�Recycled Paper <br />