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Labcorp Pacific Toxicology (Energy Services Only) <br />1904 Alexander Drive 9348 De Soto Ave. <br />Research Triangle Park, NC 27709 Chatsworth, CA 91311 <br />B. Initial Test <br />All urine specimens will be initially tested for the use of prohibited drugs by an <br />immunoassay test, which will eliminate negative urine specimens from further <br />consideration. Any positive test results in an initial test will be subject to <br />confirmation through an additional, more precise and accurate testing <br />methodology. The cut-off levels set forth below will be used for the initial testing <br />of specimens to determine whether they are negative for the following drugs: <br />REFERENCE APPENDIX F FOR CUT-OFF LEVELS <br />C. Confirmatory 1 ests <br />Any urine specimen identified as positive on the initial test will be confirmed by a <br />second analytical procedure independent from the initial test and which uses a <br />different chemical technique and procedure. The Company will use gas <br />chromatography/mass spectrometry to confirm initial positive test results. The <br />cut-off levels set forth above will be used to establish the existence of a <br />"confirmed positive" test result. Any initial positive result which is not <br />confirmed as positive under the above cut-off levels will be deemed negative. <br />D.170%l�tLdu <br />Before the laboratory reports any test result, it will first review the results of the <br />initial test, confirmatory test or any relevant quality control data to certify that the <br />test result is accurate. The laboratory will then report the test results to the <br />Company's Medical Review Officer ("MRO") within five (5) working days after <br />the receipt of the specimen and will also forward the original Urine Custody and <br />Control Forms to the MRO. Any specimen which was negative on an initial or <br />confirmatory test will be reported as negative. The only specimens reported as <br />positive will be those which have been confirmed as positive through gas <br />chromatography/mass spectrometry. Test results may not be reported verbally by <br />telephone by the lab to the MRO. Additionally, the laboratory will not report any <br />test results to the Company, but only to its MRO. The laboratory and the <br />Company will ensure that the data transmission is confidential and will secure and <br />limit access to its data transmission storage and retrieval system. <br />The MRO may request from the laboratory and the laboratory will provide <br />quantization of test results. The MRO will then report to the Company's <br />DESIGNATED EMPLOYER REPRESENTATIVE whether the test is positive or <br />Aegion - Substance Abuse Policy & Procedures 19 <br />