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Sia <br />McDowell Blvd. North, Ste. D <br />e qU ®i a Petaluma, CA 94954 <br />(707)792-1865 <br />FAX (707) 792-0342 <br />Analytical www.sequoialabs.com <br />Cambria Environmental Project: Equiva 10d <br />270 Perkins St. Project Number: 880 Victor Rd. Lodi, Ca Reported: <br />Sonoma CA, 95476 Project Manager: Aubrey Cool 12/29/00 10:17 <br />Total Metals by EPA 6000/7000 Series Methods - Quality Control <br />Sequoia Analytical - Petaluma <br />Reporting Spike Source %REC RPD <br />Analyte Result Limit Units Level Result °/6REC Limits RPD Limit Notes <br />Batch 0110673 -EPA 3050B <br />Blank (0110673-BLK1) <br />Prepared: 12/05/00 Analyzed: 12/08/00 <br />Antimony <br />ND <br />6.00 mg/kg <br />Arsenic <br />ND <br />10.0 " <br />Barium <br />ND <br />1.00 " <br />Beryllium <br />ND <br />0.100 " <br />Cadmium <br />ND <br />1.00 " <br />Chromium <br />ND <br />1.00 " <br />Cobalt <br />ND <br />0.700 " <br />Copper <br />ND <br />1.00 " <br />Lead <br />ND <br />7.50 " <br />Molybdenum <br />ND <br />2.00 " <br />Nickel <br />ND <br />3.00 " <br />Selenium <br />ND <br />10.0 " <br />Silver <br />ND <br />0.700 " <br />Thallium <br />ND <br />10.0 " <br />Vanadium <br />ND <br />1.00 " <br />Zinc <br />ND <br />2.00 " <br />LCS (0110673-BS1) <br />Prepared: 12/05/00 Analyzed: 12/08/00 <br />Antimony <br />47.4 <br />6.00 <br />mg/kg 50.0 <br />94.8 <br />80-120 <br />Arsenic <br />50.5 <br />10.0 <br />50.0 <br />101 <br />80-120 <br />Barium <br />48.0 <br />1.00 <br />50.0 <br />96.0 <br />80-120 <br />Beryllium <br />4.86 <br />0.100 <br />5.00 <br />97.2 <br />80-120 <br />Cadmium <br />4.90 <br />1.00 <br />5.00 <br />98.0 <br />80-120 <br />Chromium <br />49.0 <br />1.00 <br />50.0 <br />98.0 <br />80-120 <br />Cobalt <br />48.2 <br />0.700 <br />50.0 <br />96.4 <br />80-120 <br />Copper <br />47.6 <br />1.00 <br />50.0 <br />95.2 <br />80-120 <br />Lead <br />48.3 <br />7.50 <br />50.0 <br />96.6 <br />80-120 <br />Molybdenum <br />48.6 <br />2.00 <br />50.0 <br />97.2 <br />80-120 <br />Nickel <br />49.8 <br />3.00 <br />50.0 <br />99.6 <br />80-120 <br />Selenium <br />48.5 <br />10.0 <br />50.0 <br />97.0 <br />80-120 <br />Silver <br />4.04 <br />0.700 <br />5.00 <br />80.8 <br />80-120 <br />Thallium <br />47.8 <br />10.0 <br />50.0 <br />95.6 <br />80-120 <br />Vanadium <br />48.2 <br />1.00 <br />50.0 <br />96.4 <br />80-120 <br />Zinc <br />52.4 <br />2.00 <br />50.0 <br />105 <br />80-120 <br />Sequoia Analytical - Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must be reproduced in its entirety. <br />Page 12 of 23 <br />