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HML Number: A000819 , <br /> California Department of Toxic Substances Control <br /> to A000620 <br /> Hazardous Materials Laboratory Quality Control Report for Metals by ICP <br /> Inorganic Section <br /> Solid Lab QC Sample alibration Verification uplicate Spiked Sample HML No.: Matrb: Solid Control Limits <br /> Element mg/kg Standard mg/L pike results mg/kg Unspiked A000819 %Recovery Mean Reo. <br /> known found k% known found % MSD RPD Resuh(mglkg) Added(mglkg) MS MSD Min% Max% RPD% <br /> rsenic-As 58.2 64.2 110 10.0 10.2 102 501 516 2.95 1.69 500 99.9 103 70.0 130 20.0 <br /> adum-Ba 49.5 49.4 99.8 10.0 9.93 99.3 565 590 4.33 420 500 29.0• . 34.0' 70.0 130 20.0 <br /> eMlium-Be 2.59 2.72 105 2.00 1.99 99.5 99.1 101 1.90 NO 100 99.1 101 70.0 130 20.0 <br /> admium-Cd 17.5 20.3 116 10.0 10.1 101 478 490 2.48 1.12 500 95.4 97.8 70.0 130 20.0 <br /> hromium-Cr 22.6 24.0 106 10.0 9.74 97.4 472 485 2.72 1.09 500 94.2 96.8 70.0 130 20.0 <br /> obalt-Co 19.2 19.3 101 10.0 10.0 100 474 486 2.50 NO 500 94.8 97.2 70.0 130' 20.0 <br /> pper-Cu 117 120 103 10.0 10.5 105 3320 3210 3.37 2930 500 78.0" 56.0" 70.0 130 20.0 <br /> ead-Pb 22.7 33.0 145 10.0 10.2 102 453 460 1.75 3.29 500 89.9 915 70.0 130 20.0 <br /> olybdenum-Mo 15.7 15.8 101 10.0 9.61 96.1 633 610 3.70 148 500 97.0 92.4 70'0 130 20.0 <br /> ickel-Ni 20.5 21.7 106 10.0 9.96 99.6 479 491 2.47 1.05 500 95.6 98.0 70.0 130 20.0 <br /> elenium-Se 60.7 71.9 118 10.0 10.5 105 511 520 1.75 8.78 500 100 102 70.0 130 20.0 <br /> hallium-TI 82.5 83.6 101 10.0 10.1 .101 457 471 3.02 10.0 500 89A 92.2 70.0 130 20.0 <br /> anadium-V 33.7 39.0 116 10.0 9.78 97.8 475 488, 2.70 NO 500 95.0 97.6 70.0 130 20.0 <br /> inc-Zn 119 131 110 10.0 10.4 104 893 888 0.56 436 500 91.2 90.2 70.0 130 20.0 <br /> iquld Lab QC Sample Reference Standard Duplicate Spiked Sample HML Na.: Matem., Liquid Control Limits <br /> Element mg/kg mg/L pike results mglkg Unspiked A000820 %Recovery Mean Reo. <br /> !, known found % known found % S MSD RPD Result(mg/kg) Added(mglkg) MS MSD Min% Max% RPD% <br /> sonic-As 2.47 2.66 1D8 1.00 1.03 103 99.1 102 2.88 NO IDD 99.1 102 70.0 130 20.0 <br /> Barium-Ba 10.2 9.77 95.8 1.D0 1.02 102 125 130 3.92 33.4 100 91.5 96.5 70.0 130 20.0 <br /> eiy1lium-Be 2.92 2.92 100 0.20 0.20 100 18.7 19.4 3.67 NO 20.0 93.5 97.0 70.0 130 20.0 <br /> admium-Cd 2.86 3.04 106 1.00 1.03 103 93.8 96.3 2.52 0.32 100 93.6 96.0 70.0 130 20.0 <br /> hromium-Cr 15.0 14.3 95.3 1.00 1.03 103 90.9 94.4 3.78 0.08 100 90.8 943 70'0 130 200.00 <br /> bait-Co 2.46 2.39 97.2 1.00 0.98 97.5 92.9 96.4 3.70 - NO 100 92.9 96.4 70.0 130 <br /> upper-Cu 65.3 64.6 98.9 1.D0 0.99 99.1 190 197 3.62 94.7 100 95.3 102 70.0 130 20.0 <br /> iLead-P6 6.23 6.29 101 1.00 1.D5 1D5 94.6 97.7 3.22 0.41 100 94.2 97.3 70.0 130 20.0 <br /> olybdenum-Mo 6.11 5.99 98 1.00 0.96 95.6 95.2 102 6.90 5.34 100 89.9 96.7 70.0 130 20.0 <br /> Nickel-Ni 11.0 10.9 99.1 1.00 0.98 97.6 93.8 97.1 3.46 NO <br /> 100 93.8 97.1 70.0 130 20.0 <br /> elenium-Se 14.2 14.9 105 1.00 1.06 IDS 101 100 1.00 0.49 100 101 99.5 70.0 130 20.0 <br /> hallium-Ti 33.0 29.4 89.1 1.00 1.03 103 92.4 94.0 1.72 1.75 100 90.7 92.3 70.0 130 20.0 <br /> anadium-V 2.39 2.42 101 1.00 0.99 99.1 94.0 95.5 1.58 NO 100 94.0 95.5 70.0 130 20.0 <br /> li inc-Zn 22.2 25.0 113 1.00 1.01 101 131 135 3.01 37.7 - 100 93.3 97.3 70.0 130 20.0 <br /> Comments: ND-=Not Detected <br /> =Low recoveries possibly due to precipitation of Barium as sulfate <br /> Due to heterogeneity of the sample. <br /> Stag Chemist: Merlyn Da Guzman, odd Datew� -(Supervisor Jarnail Garcia, (.�Ge.YC�r-S Date' ( G S <br /> t Chemist:Kashyap Thakors, Date:s/� <br />