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WE ,k Laboratories, Ir.... <br />Analytical & Environmental Services <br />Tient: Union Pacific tail Road <br />Project Name: <br />Purchase Order #Audit 177019 Normal Turnaround <br />Certificate of Analysis <br />Report Date: April 14, 1997 <br />Project #: Page 2 <br />(Continued) <br />Lab#: 9706295 Sample D: Sludge Tank Matrix: Sludge <br />Sampled By: Jack Disho an Date: 03/26/1997 Time: 14:30 <br />varameter <br />I <br />Result <br />Units <br />PQL <br />Method <br />Anal zed <br />Run # <br />Soluble <br />Molybdenum on STLC <br />Extract...... <br />0.04 OC <br />mg/L <br />0.03 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Nickel on STLC Extract <br />.......... <br />ND <br />mg/L <br />0.13 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Selenium on STLC Extract <br />........ <br />ND <br />mg/L <br />0.13 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Silver on STLC Extract <br />.......... <br />ND <br />mg/L <br />0.05 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Thallium on STLC Extract <br />........ <br />ND <br />mg/L <br />0.03 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Vanadium on STLC Extract <br />........ <br />ND <br />mg/L <br />0.13 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Zinc on STLC Extra <br />t............ <br />0.716 K' <br />mg/L <br />0.25 <br />EPA 6020 <br />04/11/1997 <br />97068587 <br />Soluble <br />Mercury on WET Ext <br />act.......... <br />ND <br />mg/L <br />0.003 <br />EPA 7471 <br />04/11/1997 <br />97068580 <br />Total Recoverable Petroleu <br />Hydrocarbons <br />7,470 <br />mg/Kg <br />100 <br />EPA 418.1 <br />04/07/1997 <br />97068412 <br />Total Solids .............. <br />............4.3-44),. <br />% W/W <br />0.1 <br />SM 2540G <br />04/08/1997 <br />97068484 <br />PH ..................•••..• <br />............. <br />5.74 <br />Units <br />SM4500-H B <br />03/31/1997 <br />97068224 <br />ND = Not Detected <br />QL = Practical Quanti iable Limit Aut'hoiized Signature <br />e = Estimated (> MDL but < PQL) <br />Any remaining sample(s for testing will be disposed of three weeks from the final report <br />date unless other arra gements are made in advance. <br />14859 East Clark Avenu6, Industry, California 91745-1396 (818) 336-2139 FAX (818) 336-2634 <br />