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COMMERCIAL TESTIN <br /> G & ENGINEERING CO. <br /> GENERAL OFFICES: 226 NORTH LA SALLE STREET. CHICAGO. ILLINOIS 60501 AREA CODE 312 726.8434 <br /> srn•.e• <br /> Reply to <br /> Instrumental Analysis Division Phone: 303-278.9521 <br /> 490 Orchard Street June 4, 1979 <br /> Golden. CO 80401 <br /> Mr. Jack Gillespie <br /> C F & I Steel Corporation <br /> P 0 Box 316 <br /> Pueblo, Colorado 81002 <br /> RE: IAD #97-0543-032-07 <br /> Purchase Order # M26144 <br /> Corrected Analytical Report <br /> ,9pr <br /> Water samples were received for analyses on Aaf-sh 20, 1979. The <br /> samples were given our identification IAD ;97-0543-032-07. <br /> This report is to report values for boron after re-analyzing the <br /> samples. <br /> The samples were prepared for analyses by filtering through 0.45u <br /> pore membrane filters. Barium, calcium, iron, magnesium, manganese <br /> and silicon were determined by flame atomic absorption, potassium <br /> and sodium by flame atomic emission spectrophotometry, and arsenic <br /> and selenium by hydride generation. <br /> The remaining parameters were determined by the methods of U.S. <br /> Geological Survey Techniques of Water Resources Investigation, <br /> Chapter Al , Book 5. <br /> The results of these analyses are presented in the following tables <br /> and are reported in mg/l unless otherwise indicated. <br /> If you have any questions concerning these analyses, please call . <br /> Ernest AppelkSans, Analyst M. L. Jacobs , Ph.D. , Mngr. <br /> Instrumental Analysis Div. <br /> EA/as <br /> 1 J. � 111 LLL` <br /> • L Gam'w <br />