2003-01-28_REVISION - M1998013 (2)

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TETRA TECH RMC January 28, 2003 Mr. Gregg Squire, Environmental Protection Specialist Via Hand Delivery Colorado Dept. of Minerals and Geology 1313 Sherman Street, Room 215 Denver, CO 80203 RE: Hall-Irwin Corporation!/ ~/ t' Theme res~Resource Gravel Mining Site -Firestone, Colorado / Amendment Application for MLRB 112 Permit #M-1998-013 /_ / Response to Adequacy Review Letter dated January 21, 2003 RMC Job No. 80.0636.026.04 Dear Mr. Squire: On behalf of Hall-Irwin Corporation, we are writing in response to your Adequacy Review letter dated January 21, 2003. We have summarized your comments in bold italic text and follow with our response: 1. It appears that there are several structures, including the Rural, Cole, and other irrigation ditches, and Gas/Oil well locations within 200 ft of the proposed disturbed area. Also, the Division received a letter on December 31, 2002 from Kerr-McGee objecting to Hall-Irwin's Amendment Application based on their concerns about possible damage to an existing well, their ability to maintain and service this well, and the Applicant's failure to provide for future wells and related facilities. We will fax you the stability analysis for this site by the end of the day. We have reconfigured the mining pods to conform to the stability analysis. Jeff Gregg has met with Kerr-McGee to discuss their concerns. Hall-Irwin and Kerr-McGee are in the process of drafting an agreement that will address Kerr-McGee's concerns. 2. The Rural Ditch Company should be notified of the Amendment Application, please provide proof of this notification. Enclosed please find copies of the certified mail return receipts for the Oil and Gas Companies and the Ditch Companies. Please note two of the Ditch Companies were not notified because Hall- Irwin isthe majority shareholder. 1900 5. Sunset Street, Suite I -F, Longmont, CO 80501 Tel 303.772.5282 Fax 303.665.6959 www.ttrmccom