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0 0 <br /> ®rvbNorth State Environmental <br /> Chemical Waste Disposal • Trucking • Consulting <br /> 0 CERTIFICATE OF ANALYSIS <br /> Quality Control/Quality Assurance <br /> Lab Number: 98-308 <br /> Client : CAL INC <br /> Project: CA 224-1 <br /> Date Reported: 03/23/98 <br /> Diesel Range Hydrocarbons by Method 8015M <br /> Benzene, Toluene, Ethylbenzene and Xylenes by 8020 <br /> Reporting MS/MSD <br /> Analyte Method Limit Unit Blank Recovery RPD <br /> Pzene 8020 0.5 ug/L ND 98 5 <br /> ylbenzene 8020 0 .5 ug/L ND 96 4 <br /> Toluene 8020 0.5 ug/L ND 100 5 <br /> Xylenes 8020 1 . 0 ug/L ND 108 4 <br /> Diesel 8015M 0 . 05 mg/L ND 104 1 <br /> ELAP Certif ca 0:1753 <br /> Reviewed a d oved <br /> • Page 2 of 2 <br /> John A.Murphy,Lab atory Director <br /> P. O. Box 5624 • South San Francisco , California 94083 • 650-588-2838 FAX 588 - 1950 <br />