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California Department of Toxic Substances Control HML Number: 020579 Hazardous Materials Laboratory to 020580 lnarganic Section Quality Assurance Summary for ICP HML Soil QC Sample Method Calibration Verification Duplicate Spiked Sample HML No.: 020578 Matrix: SOLID Element mg/kg Blank Standard mg/L Spike Results mg/kg Unspiked Spike % Recovery Result Added found known % m JL found known % A: B: RPD (mg/kg) (mg/kg) A: B: As-Arsenic 64.3 68.2 94.3 <0.10 10.6 10.0 106 1 473 489 3.33 <5.00 500 94.6 97.8 Ba-Barium 49.5 50.6 97.8 <0.010 10.4 10.0 104 477 497 4.23 14.3 500 92.5 96.5 Be-Beryllium 3.99 4.11 97.1 <0.005 10.5 10.0 105 99.2 103 3.76 <0.25 100 99.2 103 Cd-Cadmium 19.4 19.3 100 <0.010 11.3 10.0 113 492 514 4.97 11.4 500 96.1 101 Co-Cobalt 21.8 21.9 99.5 <0.05 11.0 10.0 110 485 506 4.04 <2.50 500 97.0 101 Cr-Chromium 25.4 25.7 98.8 <0.08 10.8 10.0 108 484 505 4.33 9.93 500 94.8 99.0 Cu-Copper 172 124 139 0.13 9.84 10.0 98.4 498 521 4.80 30.7 500 93.5 98.1 Mo-Molybdenum 17.1 18.0 95.0 <0.10 10.7 10.0 107 474 496 4.54 <5.00 500 94.8 99.2 Ni-Nickel 23.2 24.0 96.7 <0.05 11.2 10.0 112 487 508 4.25 3.12 500 96.8 101 Pb-Lead 25.4 27.1 93.7 <0.10 11.0 10.0 110 481 500 3.92 5.60 500 95.1 98.9 Se-Selenium 62.5 67.0 93.3 <0.15 10.9 10.0 109 478 496 3.70 <7.50 500 95.6 99.2 TI-Thailium 79.9 88.4 90.4 <0.15 10.9 10.0 109 486 505 3.83 <7.50 500 97.2 101 V-Vanadium 42.6 38.6 110 <0.06 10.3 10.0 103 465 483 3.80 <3.00 500 93.0 96.6 Zn-Zinc 128 141 90.8 50.10 11.2 10.0 112 490 513 4.77 18.8 500 94.2 98.8 HML Liquid QC Sample Reagent Inorganic Ventures Duplicate Spiked Sample HML No.: 020593 Matrix: LIQUID Blank Reference Standard Element Spike Results mg/kg Unspiked Spike % Recovery mg/kg mgJL % a Result Added found known m /L found known /° A: B: RPD (mg/kg) (mg/kg) A: B: As-Arsenic 2,59 2.63 98.5 <0.10 1.07 1.00 107 24.7 25.1 1.21 <0.50 25.0 96.8 100 Ba-Barium 10.0 9.92 101 <0.010 1.02 1.00 102 24.9 24.8 0.40 0.09 25.0 99.2 98.8 Be-Beryllium 2.88 2.97 97.0 <0.005 1.03 1.00 103 5.27 5.22 0.96 <0.02 5.00 105 104 Cd-Cadmium 3.13 3.10 101 <0.010 1.11 1.00 111 26.2 26.3 0.00 <0.05 25.0 105 105 Co-Cobalt 2.66 2.66 100 <0.05 1.10 1.00 110 26.4 26.4 0.00 <0.25 25.0 106 106 Cr-Chromium 15.4 15.0 103 <0.08 1.07 1.00 107 26.0 25.0 0.00 <0.40 25.0 104 104 Cu-Copeer 65.8 66.1 99.5 <0.10 1.08 1.00 108 34.5 33.8 2.85 9.55 25.0 99.8 97.0 Mo-Molybdenum 6.59 6.36 104 <0.10 1.07 1.00 107 26,3 26.4 0.00 0.60 25.0 103 103 Ni-Nickel 11.7 11.7 100 <0.05 1.11 1.00 111 28.2 28.2 0.00 1.90 25.0 105 105 Pb-Lead 6.57 6.18 106 <0.10 1.09 1.00 109 26.7 26.9 0.98 1.23 25.0 102 103 Se-Selenium 14.4 14.1 102 <0.15 1.08 1.00 108 26.4 26.3 0.95 <0.75 25.0 106 105 TI-Thallium 35.1 34.5 102 <0.15 1.07 1.00 107 25.8 26.4 2.87 <0.75 25.0 103 106 V-Vanadium 2,35 2.33 101 <0.06 1.02 1.00 102 24.8 24.8 0.00 <0.30 25.0 99.2 99.2 Zn-Zine 24.9 24.4 102_L.50.10 1,11 1.00 1 1 1 31.1 31.1 0.00 5.55 2 .0 102 102 ICP Analyst's Signature: ��w �, 4 ``!r--�'__ �- „urmail Siuia, PH Chemist III, Specialist: %1., _s1 M1 a .u Date: ' G3 Chemist: Chemists Signature: /.�' - Date Analyzed: 01/03/03 f