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f <br /> North State Environmental <br /> 0,6 Chemical Waste Disposal •Trucking • Consulting <br /> I <br /> i <br /> I <br /> CERTIFICATE OF ANALYSIS j <br /> Lab No: 96-904 Date Sampled: 12-09-96 ; <br /> Client: SEMCO/HK2 Date Analyzed: 12-17-96 <br /> Project: 1131 Holly Dr. Date Reported: 12-23-96 <br /> i <br /> TTLC Metals by Atomic Absoption Spectrsocopy <br /> Sample prepared by Method 3050 <br /> SAMPLE NO CLIENT ID ANALYTE METHOD RESULT <br /> i <br /> 96-904-01 Pit Bottom Nickel 7520 35 mg/Kg i <br /> @9` Zinc 7950 54 mg/Kg <br /> Soil Chromium 7190 34 mg/Kg r <br /> Cadmium 7130 ND <br /> Lead 7420 14 mg/Kg <br /> 96-904-02 SPI-4 Nickel 7520 42 mg/Kg <br /> Soil Zinc 7950 127 mg/Kg <br /> Chromium 7190 38 mg/Kg <br /> Cadmium 7130 ND <br /> Lead 7420 138 mg/Kg <br /> Quality Control Quality Assurance Summary: Soil <br /> Analyte Method Reporting Blank MS/MSD RPD <br /> Limit Recovery <br /> Nickel 7520 5.0 mg.Kg ND 99/96 4 <br /> Zinc 7950 1.0 mg/Kg ND 93/90 ,. 4 <br /> Chromium 7190 5.0 mg/Kg ND 90/84 . 8 <br /> Cadmium 7130 2.0 mg/Kg ND 101/99 2 <br /> Lead 7420 2.0 mg/Kg ND 99/99 1 <br /> ELAgeApproved:NO: 1753 <br /> Rev <br /> John A. Murphy, aboratory Director <br /> P. O . Box 5624 South San Francisco , California 94083 415-588-2838 FAX 588 - 1950 <br />