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dbCheanicalNorth State Environmental <br /> Waste Ulspnsel • 'Trucking • Consulting <br /> 0 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> JOB NO: 95-323 DATE SAMPLED: 07-20-95 <br /> CLIENT:STAR DATE EXTRACTED: 07-26-95 <br /> DATE ANALYZED: 07-26-95 <br /> TTLC METALS BY ATOMIC ABSORPTION SPECTROMETRY <br /> SAMPLES PREPARED BY EPA METHOD 3050 <br /> Quality Control Quality Assurance Summary: <br /> Reporting MS/MSD <br /> Analyte Method limit Blank Recovery RPD <br /> Antimony 7040 10 . 0 mg/Kg ND 966 1 <br /> Arsenic 7061 0 . 5 mg/Kg ND 93% 5 <br /> Barium 7080 10 . 0 mg/Kg ND 1050 1 <br /> Beryllium 7090 0 . 5 mg/Kg ND 98% 1 <br /> Cadmium 7130 0 . 5 mg/Kg ND 99% 1 <br /> Chromium 7190 2 .5 mg/Kg ND 98% 1 <br /> Cobalt 7200 2 .5 mg/Kg ND 95% 2 <br /> `Copper 7210 2 . 0 mg/Kg ND 106% 1 <br /> Lead 7420 5 . 0 mg/Kg ND 95% 1 <br /> Mercury 7470 0 . 5 mg/Kg ND 989- 2 <br /> Tool ybdenum 7480 10 . 0 mg/Kg ND 103% 3 <br /> Nickel 7520 5 . 0 mg/Kl. - ND 100% 3 <br /> Selenium 7741 0 . 5 [fig/Kg ND 106% 1 <br /> Silver 7760 1 . 0 mg/Kg ND 105% 1 <br /> Thallium 7840 10 . 0 mg/Kg ND 100% 1 <br /> Vanadium 7910 25 . 0 mg/Kg ND 107% 3 <br /> Zinc 7950 0 .5 mg/Kg ND 106% 1 <br /> Aa <br /> NUMBER 1753 <br /> ed by <br /> Page 2 of 2 <br /> `J . Hnx 5624 • South San Francisco, California 94083 415 . 588 . 2838 FAX 588 1950 <br />