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Sequoia <br />Iwo <br />Analytical <br />819 Striker Avenue, Suite 8 <br />i Sacramento, CA 95834 <br />(916) 921-9600 <br />FAX (916) 921-0100 <br />ECM Services (ELMS) <br />Project: <br />Waste Profile <br />Sampled: <br />10/26/99 <br />P.O. Box 622228 <br />Project Number: <br />N/A <br />Received: <br />10/27/99 <br />Orangevale, CA 95662 <br />Project Manager: <br />Maureen Dogett <br />Reported: <br />11/10/99 <br />Total Metals by EPA 6000/7000 Series Methods/Quality Control <br />Sequoia Analytical - Sacramento <br />Date Spike Sample QC Reporting Limit Recov. RPD RPD <br />Analyte Analyzed Level Result Result Units Recov. Limits % Limit %Notes* <br />Batch: 9100345 <br />Date Prepared: <br />10/29/99 <br />Extraction Method: EPA 3050B <br />Blank <br />9100345-BLKI <br />Antimony <br />11/4/99 <br />ND <br />mg/kg <br />2.50 <br />Cadmium <br />ND <br />0.250 <br />Copper <br />ND <br />0.250 <br />Lead <br />ND <br />2.50 <br />Nickel <br />ND <br />1.00 <br />Zinc <br />ND <br />2.00 <br />Arsenic <br />ND <br />2.50 <br />Barium <br />ND <br />2.50 <br />Beryllium <br />ND <br />0.250 <br />Cadmium <br />ND <br />0.250 <br />Chromium <br />ND <br />0.250 <br />Cobalt <br />ND <br />1.00 <br />Copper <br />ND <br />0.250 <br />Lead <br />ND <br />2.50 <br />Molybdenum <br />ND <br />1.00 <br />Nickel <br />ND <br />1.00 <br />Selenium <br />ND <br />2.50 <br />Silver <br />ND <br />0.250 <br />Thallium <br />ND <br />2.50 <br />Vanadium <br />ND <br />1.00 <br />Zinc <br />ND <br />2.00 <br />LCS <br />9100345 -BSI <br />Cadmium <br />11/4/99 <br />50.0 <br />47.1 <br />mg/kg <br />80.0-120 <br />94.2 <br />Copper <br />50.0 <br />47.7 <br />80.0-120 <br />95.4 <br />Lead <br />50.0 <br />47.5 <br />80.0-120 <br />95.0 <br />Nickel <br />50.0 <br />47.6 <br />80.0-120 <br />95.2 <br />Zinc <br />50.0 <br />48.7 <br />80.0-120 <br />97.4 <br />Arsenic <br />50.0 <br />46.3 <br />80.0-120 <br />92.6 <br />Cadmium <br />50.0 <br />47.1 <br />80.0-120 <br />94.2 <br />Chromium <br />50.0 <br />48.7 <br />80.0-120 <br />97.4 <br />Nickel <br />50.0 <br />47.6 <br />80.0-120 <br />95.2 <br />Zinc <br />50.0 <br />48.7 <br />80.0-120 <br />97.4 <br />Matrix Spike <br />9100345 -MSI <br />5910245-18 <br />Cadmium <br />11/4/99 <br />50.0 <br />30.0 <br />76.3 <br />mg/kg <br />80.0-120 <br />92.6 <br />D <br />Copper <br />50.0 <br />1919 <br />63.3 <br />80.0-120 <br />86.8 <br />D <br />Lead <br />50.0 <br />ND <br />ND <br />80.0-120 <br />0 <br />1.D <br />Nickel <br />50.0 <br />ND <br />78.5 <br />80.0-120 <br />157 <br />1,D <br />Zinc <br />50.0 <br />510 <br />629 <br />80.0-120 <br />238 <br />1.D <br />Sequoia Analytical - Sacramento *Refer to end of report for text of notes and definitions <br />Page 6 of 11 <br />