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• t� <br /> COMMERCIAL TESTING & ENGINEERING CO. <br /> GENERAL OFFICES: 226 NORTH LA SALLE STREET, CHICAGO. ILLINOIS 60601 AREA COOS 312 726.8434 <br /> ztlL <br /> 11 . 4..w <br /> Reply to <br /> Instrumental Analysis Division Phone: 303.278-9521 <br /> 490 Orchard Street <br /> Golden, CO 80401 August 6, 1980 <br /> Mr. Jack Gillespie <br /> CF & I Steel Corporation <br /> P.O. Box 316 <br /> Pueblo, CO 81002 <br /> RE: IAD #97-E747-032-05 40 <br /> Release #R26675 G 7' <br /> Purchase Order #M26144 M7N�hC 1980 <br /> Analytical Report Ofp'4RT <br /> �fNT <br /> Five water samples were received for analyses on July 9, 1980. <br /> These samples were given our identification IAD tt97-E747-032-05. <br /> The samples were analyzed for total Iron, Zinc, Manganese and dissolved <br /> Calcium, Magnesium, Iron, Zinc and Manganese by flame atomic <br /> absorption. The dissolved Sodium and Potassium were analyzed by <br /> flame emission. Total Selenium was analyzed by hydride generation atomic <br /> absorption. Samples for total metals were first digested in nitric <br /> and hydrochloric acids. <br /> Boron was determined colorimetrically, Sulfate turbidimetrically, Chloride <br /> and Fluoride by specific ion electrode by the procedures of EPA Methods <br /> for Chemical Anal sis of Water and Waste, 1979. Dissolved solids TDS , <br /> Suspended Solids (TSS) and oil and grease were determined gravimetri- <br /> cally by the procedures of Standard Methods, 14th edition. • pH, Carbonate, <br /> Bicarbonate, Alkalinity and Specific Conductance were all done by <br /> Standard Method's Procedures. Hardness , Sodium Absorption Ratio, and Ion <br /> Balance were calculated. <br /> The results of these analyses are presented in the following tables and <br /> are reported in milligrams per litre (mg/1 ) unless otherwise noted. <br /> i _. <br /> s, <br />