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Wed L <br />Client: Union Pacific Rail Road - <br />Project Name: <br />QC Lab# TestGroup <br />Weck Laboratories, Inc. <br />Environmental and Analytical Services - Since 1964 <br />QC Report Date: Thursday, April 20, 2000 <br />Project #: <br />QUALITY CONTROL REPORT <br />Amt. <br />Added/ <br />Sample QC True %R or <br />Result Result Units Value RPD <br />A002447-001 MS <br />6020_stic <br />Solubleantimony <br />on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-001MS <br />6020_stic <br />Soluble <br />arsenic on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-OOJMS <br />6020_stic <br />Soluble <br />barium on WET extract (STLC ) <br />ND <br />10 <br />mg/L <br />A002447-00lMS <br />6020_stic <br />Solubl <br />beryllium on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001MS <br />6020_stic <br />Solubl <br />cadmium on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001 MS <br />6020_stic <br />Solubl <br />e cobalt on WET extract (STLC) <br />ND <br />9.0 <br />mg/L <br />A002447-001 MS <br />6020_stic <br />Solubl <br />copper on WET extract (STLC) <br />ND <br />9.2 <br />mg/L <br />A002447-001 MS <br />6020_stic <br />Solubl <br />lead on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-001MS <br />6020_stic <br />Solubl <br />molybdenum on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001 MS <br />6020_stic <br />Solubl <br />nickel on WET extract (STLC) <br />ND <br />8.9 <br />mg/L <br />A002447-001MS <br />6020_stic <br />Solubl <br />selenium on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-OOlMS <br />6020_stic <br />Solubl <br />B silver on WET extract (STLC) <br />ND <br />2.3 <br />mg/L <br />A002447-001 MS <br />6020_stic <br />Solubl <br />thallium on WET extract (STLC) <br />ND <br />9.6 <br />mg/L <br />A002447-00lMS <br />6020_stic <br />Solubl <br />total chromium on WET ext.-STLC <br />ND <br />9.5 <br />mg/L <br />A002447-001MS <br />6020_stic <br />Solubl <br />zinc on WET extract (STLC) <br />ND <br />9.9 <br />mg/L <br />A002447-00lMS <br />6020_stic <br />Solule <br />vanadium on WET extract (STLC) <br />ND <br />9.4 <br />mg/L <br />A002447-00lMSD <br />6020_stic <br />Solubl <br />a antimony on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />arsenic on WET extract (STLC) <br />ND <br />9.8 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />barium on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />beryllium on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />cadmium on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-00lMSD <br />6020_stic <br />Solubl <br />cobalt on WET extract (STLC) <br />ND <br />9.2 <br />mg/L <br />A002447-001 MSD <br />6020_stic <br />Solubl <br />a copper on WET extract (STLC) <br />ND <br />9.5 <br />mg/L <br />A002447-001 MSD <br />6020_stic <br />Solubl <br />lead on WET extract (STLC) <br />ND <br />11 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />molybdenum on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />nickel on WET extract (STLC) <br />ND <br />9.2 <br />mg/L <br />A002447-OOIMSD <br />6020_stic <br />Solubl <br />selenium on WET extract (STLC) <br />ND <br />10 <br />mg/L <br />A002447-OOIMSD <br />6020_stic <br />Solubl <br />silver on WET extract (STLC) <br />ND <br />2.3 <br />mg/L <br />A002447-001 MSD <br />6020_stic <br />Solubl <br />a thallium on WET extract (STLC) <br />ND <br />9.4 <br />mg/L <br />A002447-001MSD <br />6020_sllc <br />Solubl <br />total chromium on WET ext.-STLC <br />ND <br />9.7 <br />mg/L <br />A002447-001MSD <br />6020_stic <br />Solubl <br />zinc on WET extract (STLC) <br />ND <br />9.7 <br />mg/L <br />A002447-001 MSD <br />6020_stic <br />Solule <br />vanadium on WET extract (STLC) <br />ND <br />9.4 <br />mg/L <br />Method Blank <br />6020_stic <br />Soluble <br />antimony on WET extract (STLC) <br />0.00 <br />mg/L <br />Method Blank <br />6020_stic <br />Soluble <br />arsenic on WET extract (STLC) <br />0.00 <br />mg/L <br />Method Blank <br />6020_stic <br />Soluble <br />barium on WET extract (STLC) <br />0.00 <br />mg/L <br />Method Blank <br />6020_stic <br />Solubl <br />beryllium on WET extract (STLC) <br />0.00 <br />mg/L <br />Method Blank <br />6020_stic <br />Solubl <br />cadmium on WET extract (STLC) <br />0.00 <br />mg/L <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />2 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />10 <br />2 <br />10 <br />10 <br />10 <br />10 <br />Note: <br />ND = Not Detected MS = Matrix Spi a MSD = Matrix Spike Duplicate SURR = Surrogate <br />BL = Blank DUP = Duplicat RPD = Relative Percent Deviation LCS = Laboratory Control Standard <br />111 <br />101 <br />102.8 <br />103 <br />104 <br />90.1 <br />90.9 <br />106.2 <br />102.6 <br />88.9 <br />106 <br />114.5 <br />95.5 <br />94.7 <br />97.1 <br />94.3 <br />111 <br />98.1 <br />102.8 <br />104 <br />106 <br />91.8 <br />93.8 <br />105.2 <br />101.6 <br />91.7 <br />102 <br />114.5 <br />94 <br />96.5 <br />94.5 <br />93.7 <br />%RPD <br />for Low High <br />MSD Limit Limit <br />0 <br />3 <br />0 <br />1 <br />2 <br />2 <br />3 <br />1 <br />1 <br />3 <br />4 <br />0 <br />2 <br />2 <br />3 <br />1 <br />Page 10 of 15 <br />--------------- ---- <br />14859 East Clark Avenue, Cit of Industry, California 91745-1396 (626) 336-2139 FAX (626) 336-2634 <br />www.wecklabs.com <br />