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U0Itl <br />Analytical <br />819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />(916)921-9600 <br />FAX (916) 921 -0 100 <br />ECMS <br />Project: <br />QBR-DEH <br />Sampled: <br />10/1/99 <br />P.O. Box 622228 <br />Project Number: <br />N/A <br />Received: <br />10/6/99 <br />Orangevale, CA 95662 <br />Project Manager: <br />Maureen Dogett <br />Reported: <br />10/14/99 <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: 9100140 <br />Date Prepared: 10/13/99 <br />Extraction Method: EPA 7470A <br />Blank <br />9100140-BLKI <br />Mercury <br />10/13/99 <br />ND <br />mg/l <br />0.000200 <br />LCS <br />9100140 -BSI <br />Mercury <br />10/13/99 0.00500 <br />0.00458 <br />mg/l <br />80.0-120 <br />91.6 <br />Matrix Spike <br />9100140 -MSI <br />S910148-01 <br />Mercury <br />10/13/99 0.00500 <br />ND <br />0.00471 <br />mg/l <br />75.0-125 <br />94.2 <br />Matrix Spike Dup <br />9100140-MSDI <br />S910148-01 <br />Mercury <br />10/13/99 0.00500 <br />ND <br />0.00476 <br />mg/l <br />75.0-125 <br />95.2 20.0 1.06 <br />Batch: 9100150 <br />Date Prepared: 10/13/99 <br />Extraction Method: EPA 3010A <br />Blank <br />9100150-BLKI <br />Antimony <br />10/13/99 <br />ND <br />mg/l <br />0.0500 <br />Arsenic <br />ND <br />0.0500 <br />Barium <br />ND <br />0.0500 <br />Beryllium <br />ND <br />0.00500 <br />Cadmium <br />ND <br />0.00500 <br />Chromium <br />ND <br />0.00500 <br />Cobalt <br />ND <br />0.0200 <br />Copper <br />ND <br />0.00500 <br />Lead <br />ND <br />0.0500 <br />Molybdenum <br />ND <br />0.0200 <br />Nickel <br />ND <br />0.0200 <br />Selenium <br />ND <br />0.0500 <br />Silver <br />ND <br />0.00500 <br />Thallium <br />ND <br />0.0500 <br />Vanadium <br />ND <br />0.0200 <br />Zinc <br />ND <br />0.0150 <br />LCS <br />9100150 -BSI <br />Arsenic <br />10/13/99 0.500 <br />0.488 <br />mg/l <br />80.0-120 <br />97.6 <br />Cadmium <br />0.500 <br />0.492 <br />80.0-120 <br />98.4 <br />Chromium <br />0.500 <br />0.493 <br />80.0-120 <br />98.6 <br />Nickel <br />0.500 <br />0.494 <br />80.0-120 <br />98.8 <br />Zinc <br />0.500 <br />0.500 <br />80.0-120 <br />100 <br />ti <br />Matrix Spike <br />9100150 -MSI <br />5910156-05 <br />Arsenic <br />10/13/99 0.500 <br />ND <br />0.480 <br />mg/l <br />80.0-120 <br />96.0 <br />Cadmium <br />" 0.500 <br />ND <br />0.480 <br />80.0-120 <br />96.0 <br />Sequoia Analytical - Sacramento *Refer to end of report for text of notes and definitions <br />Page 4 of 7 <br />