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LIGHT, AIR & SPACE CONSTRUCTION <br /> ENVIRONMENTAL SERVICES COMPANY <br /> State Contractor's License Number 445403 <br /> State EPA K.E.A.Number 04072 <br /> Office 408-979-0661 <br /> Table 4. Groundwater Chemical Analysis Results <br /> Well TPHD TPHG Ben Tol Ethyl Xyl TBA MTBE DIPE ETBE TAME 1-2, E0E3 Eth Meth <br /> Number DCA <br /> U /I ug/1 U A U /I U /I U 1l _ U /l U /I U ll Ug/1 U tl U ll ug/1 UII U /I <br /> MW-1 ND 69* ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< <br /> <1.0 0.5 0.5 0.5 0.5 11 0.5 0.5 D.5 0.5 0.5 0.5 110 0.00055 <br /> MW-2 ND ND ND< ND< ND< ND< ND< NO< ND< ND< ND< ND< ND< ND< ND< <br /> <1.0 <55 0.5 0.5 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 0.5 110 0.00055 <br /> MW-3 NO NO ND< ND< ND< ND< ND< 3.99 ND< ND< ND< ND< ND< ND< ND< <br /> <1.0 <55 0.5 0.5 0.5 D.5 11 0.5 0.5 0.5 0.5 0.5 110 0.00055 <br /> Water ND NO ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< ND< <br /> Well <1.0 <55 0.5 0.5 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 0.5 110 0.00055 <br /> State None None 5 150 300 1750 None 13 None None None 0.5 None None None <br /> MCLS <br /> Ug/I - Micrograms per liter. ND - None detected. * - Laboratory reports that this did not resemble typical gasoline <br /> pattern. See laboratory reports for complete results. MCLs- Maximum Contaminant Levels. State of California MCL <br /> data from 2008 update to A"Compilation of Water Quality Goals,"Aug. 2007. <br /> I <br /> { <br /> I <br /> January 5, 2009 Page„12 of 12 <br /> MAIN OFFICE • 1707 LITTLE:ORC11ARD STREET, Sura.A • SAN JOSE•CA•95125 <br /> MAILING ADDRkss•P.O.BOX 36303•SAN JOSE•CA+95158-6303•4081979-0661 •4081979.0621 FAX*L ASCO,rSTea E-MAIL <br /> GENERAL AND ENGINEERING C:ONTRACI-OR•HAZARDOUS SUBSTANCE REMOVAL CONTRACTOR*SITE ENVIRONMENTAL ASSESSMENTS <br /> W FTLAND AND RIPARIAN HABITAT-ASSESSMENT-DESIGN-RESTORATION-CONSTRUCTION-MITIGATION MONITORING <br />