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02/12/1900 05:3 FROM TO 1022212099425276 P.05 <br />iWEAk Laboratories, In <br />Analytical & Environmental Services <br />client: union Pacifc Rail Road <br />pro, ect Ramo <br />Pro <br />ect #: <br />QC Report Date: Dec tuber 20, 1996 <br />Quality Control Report <br />Rung LA* Te :t Name AnalDate <br />Soluble Antimony on WET Extract <br />Soluble Arsenic on HET Extract <br />Soluble Barium on MET Extract <br />Soluble Beryllium on HET Extract <br />Soluble CadMiva on YET Extract <br />Soluble Chromium on HET Extract <br />Soltble Copper on WET Extract <br />Soluble Cobalt on YET Extract <br />Soluble Lead on WET Extract <br />Soluble Molybdenum on YET Extract <br />Soluble Nickel on WET Extract <br />Soluble Silver on WET Extract <br />Soluble TFaltium on WET Extract <br />Soluble Zinc on WET Extract <br />NO a Not Detected <br />MS a Matrix Spike Recovery <br />MO - Metrix Spike Duplicate Rea <br />RPD = Relative Percent Deviation <br />14859 East Clark Avenue, <br />DEr- 20 '96 10:22 <br />9604998 Soluble Metals on HET Extract by ICP <br />03/19/1996 <br />9605717 Soluble Metals on WET Extract by ICP <br />03/19/1996 <br />9603931 Soluble Metals on WET Extract by ICP <br />03/19/1996 <br />9604719 Soluble Metals on WET Extract by ICP <br />03/19/19% <br />9605463 SolubLe Metals on WET Extract by ICP <br />03/19/1996 <br />control Sauptea <br />NO <br />9605463 NO <br />4 <br />4.23 <br />105% 4.23 <br />106% <br />0.0% <br />5 <br />5 <br />100X <br />ND <br />9605463 NO <br />4 <br />3.97 <br />99.3% 3.8 <br />95. <br />4.4% <br />5 <br />5 <br />100% <br />NO <br />9605463 1.29 <br />4 <br />5.76 <br />112% 5.63 <br />109% <br />2.3% <br />5 <br />5 <br />100% <br />NO <br />9605463 NO <br />4 <br />4.31 <br />10M 4.17 <br />104X <br />3.3% <br />5 <br />5 <br />100X <br />NO <br />9605463 NO <br />4 <br />4.07 <br />102% 3.92 <br />98% <br />3.8% <br />5 <br />5 <br />100% <br />NO <br />9605463 0.12 <br />4 <br />4.25 <br />103% 4.14 <br />101% <br />2.6% <br />5 <br />5 <br />100% <br />NO <br />9605463 0.33 <br />4 <br />4.61 <br />107% 4.47 <br />104% <br />3.1% <br />5 <br />5 <br />100% <br />NO <br />9605463 NO <br />4 <br />4.18 <br />105% 3.96 <br />99% <br />5.4% <br />5 <br />5 <br />1= <br />NO <br />9605463 0.34 <br />4 <br />4.46 <br />103% 4.46 <br />103% <br />0.0% <br />5 <br />5 <br />100X <br />NO <br />9605463 0.21 <br />4 <br />4.1 <br />97.3% 3.91 <br />93% <br />4.7% <br />5 <br />5 <br />100% <br />NO <br />9605463 ND <br />4 <br />4.1 <br />103% 3.82 <br />96% <br />7.1% <br />5 <br />5 <br />1= <br />ND <br />9605463 ND <br />4 <br />4 <br />100X 3.82 <br />96% <br />4.6% <br />1 <br />1 <br />1= <br />ND <br />9605463 NO <br />4 <br />4.08 <br />102% 4.05 <br />101% <br />0.7% <br />5 <br />5 <br />100% <br />ND <br />9605463 4.62 <br />4 <br />8.86 <br />106% 8.62 <br />100% <br />2.7% <br />5 <br />5 <br />100% <br />ustry, California 91745-1396 (818) 336-2139 FAX (818) 336-2634 <br />PAGE. 005 <br />