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Aug 10 06 11:14a Matthew D. Ingram (970) 944-1211 p.1 <br />Chemical and Consulting Solu~iona, LLC <br />"Inexpensive Fines So{utions That Work!" <br />To: <br />Division of Minerals and Geology RECEIVED <br />Attn: Rick Wenzel <br />RE: Polymer use in ponds, Morrow and Sons, Fraser, CO AUG 10 2006 <br />Fax:l-303-832-8106 <br />Division of ReGamation, <br />From: Matt Ingram Mining and Safety <br />Chemical and Consulting Solutions LLC. <br />Phone:l-409-223-2224 <br />Rick, <br />Lee Morrow asked me to forward this information to you about our fines removal plan <br />for his sand and gravel operation in Fraser, Colorado. <br />The general plan consists of treating the washplant discharge with a polyacrylamide <br />flocculent to reduce the settling time and allow for a more rapid revue of the water. The <br />flocculent will be introduced to the discharge after first being diluted to a 0.5% solution <br />through the use of a high viscosity chemical metering pump, 12 element iuline static <br />mixer, end a 75' length of hose to allow for aging and mixing. The solution will then be <br />directly injected into the plant discharge line approximately 40' prior to its discharge into <br />the first settling pond. The ultra fine solids will coagulate to form small `bb's' which will <br />rapidly setfle in the fast pond leaving little if any residual polymer or suspended solids in <br />the wash water. This application will require approximately ZZmI/min of flocculent to <br />treat 750 gal/min of dirty water or roughly 0.008 mg1L (polymer density is comparable to <br />water). The NSF allows for the use of up to Img/L in drinking water applications, so no <br />adverse effects are expected <br />I hope this answers your questions, but should you have additional questions, feel free to <br />call me at 409-223-2224. <br />Sin~cedrely~, <br />~""'"~ <br />Matt Ingram <br />Permit#: M-1979-/7 Confidental?: Nr7 <br />Class: ,P.EV(fro~ Type-Seq.: <br />From: CCS, te~G To: r0. <br />Ooc. Name: oL eF 5~ <br />Doc. Date (if no date stamp): /e 0!0 <br />Specialist: /LAW . C!!/>7 <br />(254) 396-2263 Mobile • (254} 396-0166 Nome • (254} 897-2641 Fax <br />www.chemicalandconsultingsolutions.com chair@granbury.com <br />