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n <br />0 <br />Page 21 of 33 <br />Sequoia <br />819 <br />Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />Q4 04 <br />(916) 921-9600 <br />/� <br />A is <br />FAX (916) 921-0100 <br />MKI elder -Stockton <br />Project: <br />N/A <br />Sampled: <br />6/14/99 to 6/20/99 <br />8em <br />25 East Myrtle Street Project Number: <br />20-3978-03.W36 <br />Received: <br />6/22/99 <br />Stockton, CA 95205 Project Manager: <br />Tony Martin <br />Reported: <br />7/12, 23/99 <br />Dissolved Metals <br />by EPA 6000/7000 Series Methods/Quality Control <br />Sequoia <br />Analytical - Sacramento <br />Date <br />Spike <br />Sample QC <br />Reporting Limit <br />Recov. <br />RPD RPD <br />Analyte Analyzed <br />Level <br />Result Result <br />Units <br />Recov. Limits <br />% <br />Limit % Notes* <br />60423 Date Prepared: <br />6/30/99 <br />Extraction <br />Method: EPA <br />7470A <br />]� 9060423-BLKI <br />Mercury 6/30/99 <br />ND <br />mg/l <br />0.000200 <br />9060423-BS1 <br />ercury 6/30/99 <br />0.00500 <br />0.00449 <br />mg/1 <br />80.0-120 <br />89.8 <br />WMatrix Spike 9060423-MSI <br />5906414-01 <br />ercury 6/30/99 <br />0.00500 <br />ND 0.00463 <br />mg/l <br />75.0-125 <br />92.6 <br />Matrix Spike Dwop 9060423-MSD <br />ll 5906414-01 <br />IFercury 6/30/99 <br />0.00500 <br />ND 0.00464 <br />mg/l <br />75.0-125 <br />92.8 <br />20.0 0.216 <br />Batch: 9070110 Date Prepared: <br />9070110-BLKI <br />7/8/99 <br />Extraction <br />Method: 6010A/No <br />Digestion <br />Vntimony 7/8/99 <br />ND <br />mg/l <br />0.100 <br />Arsenic <br />ND <br />0.100 <br />Barium <br />ND <br />0.100 <br />eryllium <br />ND <br />0.0100 <br />admium <br />ND <br />0.0100 <br />Chromium <br />ND <br />0.0100 <br />obalt <br />ND <br />0.0400 <br />opper <br />kead <br />ND <br />0.0100 <br />ND <br />0.100 <br />Manganese <br />ND <br />0.0100 <br />Nickel ;' <br />ND <br />0.0400 <br />elenium <br />ND <br />0.100 <br />Silver <br />ND <br />0.0100 <br />Thallium <br />ND <br />0.100 <br />anadium <br />ND <br />0.0400 <br />Zinc <br />ND <br />0.0100 <br />jC.S 9070110-BSI <br />Antimony 7/8/99 <br />5.00 <br />5.00 <br />mg/I <br />80.0-120 <br />100 <br />Arsenic <br />5.00 <br />4.93 <br />80.0-120 <br />98.6 <br />Barium <br />5.00 <br />4.84 <br />80.0-120 <br />96.8 <br />Beryllium <br />5.00 <br />4.94 <br />80.0-120 <br />98.8 <br />Cadmium <br />5.00 <br />5.01 <br />80.0-120 <br />100 <br />Chromium <br />5.00 <br />5.05 <br />80.0-120 <br />101 <br />Cobalt <br />5.00 <br />5.00 <br />80.0-120 <br />100 <br />Copper <br />5.00 <br />4.89 <br />80.0-120 <br />97.8 <br />Lead <br />5.00 <br />5.07 <br />80.0-120 <br />101 <br />Sequoia Analytical - Sacramento <br />*Refer to end of report for text of notes and definitions. <br />n <br />0 <br />Page 21 of 33 <br />