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TETRA TECH RMC <br />January 5, 2004 <br />Ms. Madoline Wallace <br />Bernard, Lyons, Gaddis & Kahn <br />515 Kimbark Street <br />P.O. Box 978 <br />Longmont, Colorado 80502-0978 <br />RECE~4~;` <br />JAN 0 7 2004 <br />Division of Minerals & Geology <br />Re: Review of Lafarge Rest, Inc. Proposed Duckworth Pit Mining Plan <br />Dear Ms. Wallace: <br />Lafazge West, Inc. (Lafarge) has submitted a Rule 1.4.5 Application for a new aggregate mining <br />operation at the Duckworth Pit (no DMG number). This review is provided on behalf of the Smith <br />& Emmons Ditch Company and relates to potential impacts due to mining on the Smith & Emmons <br />Ditch an irrigation conveyance currently crossing through the property. <br />Existing Conditions <br />The Smith & Emmons Ditch generally flows south to north in the area and enters the former <br />Duckworth property approximately 240 feet east of the southwest property corner. The ditch flows <br />across the property to a point approximately 460 feet east of the northwest property comer where a <br />lateral delivers water to the east, and the main ditch continues to the west around the reclaimed <br />gravel pit lake at Lighthouse Cove subdivision. Shareholders north and east of the Duckworth <br />property continue to take deliveries from the lateral and from the main ditch. Historically one share <br />of Smith & Emmons stock was used for irrigation of the Duckworth property and was included in <br />the sale to Mineral Reserves, Inc., a Lafarge subsidiary. <br />Review of Proposed Mining Plan <br />There is insufficient information presented in the. mine permit application materials to adequately <br />review and assess Lafarge's proposal to relocate the Smith & Emmons Ditch. The following <br />excerpts from the permit application represent the entire content of the application in that regard. <br />1900 5. Sunset Street Suite I-F, Longmont CO 80501 <br />Tel 303.772.5282 fax 303.665.6959 <br />www.ttrmccom <br />