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T <br /> CROWN <br /> I TECHNOLOGY, INC. <br /> ISO 91101 CEBTIFIED Si.,. 1946 <br /> November 30, 1999 <br /> r-$wP, <br /> Sumiden Wire Products Corporation DEC — 7 XW <br /> 1412 El Pinal Drive <br /> Stockton, California 95208 K (K CA <br /> i <br /> Attn: Vi Wayne MannoPresident-PC <br /> (DOW Vice President-PC Operations ((vim <br /> Re: Ferrous Sulfate Heptahydrate Crystals /Ut.LO$[�12E y <br /> Dear Wayne: <br /> As you requested, we are confirming that approximately 100% of all the by-product <br /> Ferrous Sulfate Heptahydrate crystal that your Stockton plant produces, is purchased by <br /> our sister company, Tech-Iron, Inc. . Also, about 95% of this crystal is shipped to Tech- <br /> Iron's plant in Adelanto, California, and is dried and bagged, and then sold through <br /> distributors for use in the water treatment industry. Approximately 5% of your moist <br /> crystal was shipped to Great Western Chemical for use in neutralizing cyanide in the gold <br /> mining industry. <br /> As you know, we purchase over 50,000 tons per year of this by-product Ferrous Sulfate <br /> all over the United States. The state EPA in all of these states, along with the Federal <br /> EPA all recognize that although this material is listed as a hazardous substance, it never is <br /> classified as a hazardous "waste". <br /> We have been supplying Iron Sulfate crystallizers for over 25 years, and have been <br /> proud that we have helped eliminate any hazardous wastes that were produced by waste <br /> acid producers. <br /> If you require any further information, please let me know. <br /> j�incerely, <br /> Joseph C. Peterson <br /> President <br /> 7513 E. 96th Street • P.O. Box 50426 • Indianapolis, Indiana 46250-0426 <br /> (3 17) 845-0045 • Fax: (3 17) 845-9086 <br />