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Apr -01-98 01:21P <br />North State Environmental <br />Cl, nleai w,ae ui,pswi 7racYly • Cu nru Ll�R <br />CERTIFICATE OF ANALYSIS <br />Q',;ality --on`ro1./Quality Assurance <br />Lab Number: 38-314 <br />Client: Semco <br />Project: Corrall Hollow Rd, Tracy <br />Date Reported: 04/01/98 <br />Diesel Range Hydrocarbons by Method 8015 M <br />Gasolinc,BTEX and MTBE by Methods 8C15M and 8020 <br />Lcad by Method 7420,AA Spectroscopy <br />P.12 <br />Reporting MS/MSO <br />Analyte Method Limit Unit Blank Reccvery RBD <br />Lead <br />7420._ <br />2 <br />¢Ig/Kg <br />ND <br />104 <br />1 <br />Ciese'_ <br />80ISM <br />1.0 <br />mg/Kq <br />ND <br />106 <br />Gasoline <br />8015M <br />0._ <br />mg/Kq <br />ND <br />84 <br />6 <br />Benzene <br />8020 <br />005 <br />mg/Kg <br />NC <br />86 <br />Ethylbenzene <br />8020 <br />.005 <br />mg/Kg <br />ND <br />104 <br />?4 <br />Toluene <br />8020 <br />.005 <br />ng/Kq <br />ND <br />95 <br />25 <br />Xyiellcs <br />8020 <br />.010 <br />mg/Kg <br />ND <br />1D5 <br />1G <br />MTBE <br />8020 <br />.JOS <br />mg/Kg <br />NO <br />70 <br />5 <br />ELAP Cerritict4 No:1753 _ <br />Reviewed and Antro ved <br />John A.Murohy, Lr,borat.o ry Dirnctcz <br />Paco 2 oc 2 <br />sail Francisco. calirorn,: 940x! • 659-$8F ;838 FAX '.g 191n <br />