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<br />^~ <br />o '~ Colorado Analytical <br />~Laboratorles, Inc. <br />LABORATORY ANALYSIS REPORT <br />• TO:STEVE MOSSBERG <br />COMPANY: CEMEX <br />P.O. BOX 529 <br />LYONS, CO 80540 <br />PROJECT: SURFACE WATER TESTING - A PIT <br />PO: VERBAL <br />PARAMETER <br />pH <br />SPECIFIC CONDUCTANCE <br />TOTAL SELENIUM <br />TOTAL THALLIUM <br />• <br />mg/L =MILLIGRAMS PER LITER OR PPM <br />METHOD <br />REFERENCE <br />EPA 150.1 (i) <br />EPA 120.1 (1) <br />EPA 7740 (2) <br />EPA 7841 (2) <br />DETECTION <br />LIMIT <br />0.01 <br />1 <br />0.002 <br />0.001 <br />(1) EPA = "METHODS OF CHEMICAL ANALYSIS OF WATER & WASTES' ;USEPA; <br />EPA-600/4-79-020 REV 3/83 <br />(2) EPA =TEST METHODS FOR EVALUATING SOLID WASTE; USEPA; SW-846; NOV. 1986; <br />THIItD EDITION <br />REPORTING <br />UNITS <br />UNITS <br />uS/CM . <br />mg/L <br />mg/L <br />iRVISED BY AT APPR VED F RELEASE BY <br />RECEIVED <br />SEP 0 5 2003 <br />Division ~f Minerals and Gee{ogy <br />LAB NO: 11516 <br />DATE RCVD: 11/6/02 <br />REPORTED: 11/19/02 <br />A 240 South Main Street / Brighton, Colorado 80601-0507 / 303-659-2313 <br />~~ Mailing Address: P.O. Box 507 / Brighton, Colorado 80601-0507 / Fax: 303-659-2315 <br />