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,T=~ <br />M I N E P A L <br />• ~riiii~riiiiin<<iii • <br />999 <br />February 10, 1999 <br />~'~CEIVED <br />F EB 12 1999 <br />Ms. Christina Kamnikar ,, ,,,,n3rals 8 GeobgY <br />Division of Minerals and Geology <br />1313 Sherman Street, # 215 <br />Denver. CO 80203 <br />Re: Removal of Hazardous Substances from the Gold Hill Mill, MLRB Permit <br /># M-94117 <br />Dear Christina, <br /> As part of the refurbishment of the Gold Hill Mill, ITEC undertook a major house <br /> Leaning of the mill and surrounding area. Eight large roll off dumpsters of trash, <br /> debris and scrap were remove from the site. <br />ITEC Environmental Colorado Inc. <br />- - We also removed all reagents and chemicals left by the previous operators. <br /> Packaging and shipment was handled by Steve Flaniken, CIH. In all, 31 containers <br />9605 W. 49th Avenue were packaged and shipped to Eltex Chemical /Philip Services, Inc. in Texas for <br />Suite #102 indneration. The attached copies of the Hazardous Waste Manifests are provided <br /> for your information. <br />Wheat Ridge, CO ITEC's <br />~~ operates at the material' s natural pH, which ranges from 8.2 to 8.9. <br />80033 We use a very simple froth flotation system for recovery of metals. Curently, the <br /> only process chemicals being used and stored at the Gold Hill Mill are: <br />Tel: 303-463-9106 <br />Fax: 303-940.3257 Aero 407 Flotation promoter (Dithiophosphate Salt, CAS # <br />e-maa: ImaxxQaolcom 002492-28-4 8 # 033819-92-0), lea 55 gal. dtum <br />nttp.llwww.~tecmin.com Aero 3477 Flotation promoter(Dithiophosphate, CAS <br /> # 001310-73-2), 1 ea 55 gal drum <br /> Percol 155 Flocculent (Urea copolymer of acrylamide water) <br /> CAS 25085-023 (70%), 100 pounds <br />I am also reporting this information to CDPHE and to Bob Mason, head of the local <br />environmental committee. If you have any questions please call me at <br />303.463-9246. <br />Sincerely, <br />~~ . <br />Maxine Stevrarl <br />