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TETRA TECH RMC `'~ <br />February 3, 2003 <br />Mr. Gregg Squire, Environmental Protection Specialist <br />Colorado Dept. of Minerals and Geology / <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RECEIVED <br />FEB 0 4 2003 <br />Uiuision of Minerals and Geology <br />Via Fax & Overnight Delivery <br />RE: Hall-Irwin Corporation ~ <br />The Shores Resource Gravel Mining Site -Firestone, Colorado ~ ~ <br />Amendment Ap lication for ML 2 Permit #M-1998-013 <br />Revise eclamation Cost Estimate and Stability Analysis •~- <br />RMC Job No. 80.0636.026.04 <br />Deaz Mr. Squire: <br />On behalf of Hall-Irwin Corporation, we are submitting a revised Reclamation Cost Estimate and <br />revised Stability Analysis. These documents needed to be updated consistent with the Revised <br />Mining and Reclamation Plan Maps submitted to you on January 30, 2003. <br />As required by the DMG regulations, we have also copied this letter with enclosures to the Weld <br />County Clerk to the Board of County Commissioners; evidence of this will be forwazded via fax. <br />Please call me if you have any questions regazding these Plans. Thank you for your assistance. <br />Sincerely, <br />TETRA TECH <br />Karel G. Flanders( <br />Designer Engineer <br />Enclosure <br />C: Weld County Clerk to the Board of County Commissioners <br />Jeff Gregg, Hall-Irwin Corporation <br />1900 5. Sunset Street, Suite I -F, Longmont, CO 80501 <br />Tel 303772.5282 Fax 303.665.6959 <br />www.ttrmccom <br />