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~_-?Ij-J. ~~= .L:L'_~ roc y~JC ACCT <br />• <br />ROCKY MOUNTAIN CONSULTANTS, INC. <br />February 20, 2001 <br />Mr. Thomas Schreiner <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />1313 Sherman Street, Ruom 215 <br />Denver, Colorado 80203 <br />~.~.:~:: j3-~°567(: <br />~p~r. ., <br />III III'IIIIIIIIIIII <br />Inc <br />Premiere Building <br />825 Deloware Ave.. Sarite 500 <br />Longmont. CO 80501 <br />(303) 772-518? <br />Metro (303) G65-6283 <br />FAX (303) 665-6450 <br />(firsT Initial. Iasi name)®long.rmcco com <br />1tE: North La Poudre Resource, 112 Adequacy Review, File No. M-2000-144 <br />Dear Mr. Schreiner: <br />Following is our response to your final adequacy review comments. <br />6.4.4 Exhibit D -Mining Plan <br />1. Please bond the site using the parameters we have outlined in the permit. Hell-Irwin is <br />proposing [o mine and reclaim the site concurrently. <br />2. Clarification: hall-Irwin intends to use the overburden generated on this site as fill material <br />on other Hait-Irwin projects itt the area. Overhurden that is not used on other sites will be <br />sold. Hall-Irwin will commit [hat the maximum volume of overburden stockpiled on site at <br />any one time will be 168,000 cubic yards. <br />6.4.12 Exhibit L -Reclamation Costs <br />3. We did not receive a copy of your revised reclamation cost. <br />6.4.19 Exhibit S -Permanent Man-Made Structures <br />4. Rocky Mountain Consultants, Inc. is in the process of preparing a Flood Hazard Development <br />Permit application to Weld County. We are also proceeding through the County's Use by <br />Special Review (USR) process. Weld County will require Hall-Irwin Corporation [o have an <br />approved Flood Hazard Development before the USR can be recorded. Please note that we <br />are continuing to explore ways to protect the gas line. Other possible altemaaves currently <br />include: mining the east wall of phase I when flooding is highly unlikely (i.c. October through <br />March) or installing toe protection svuctures (see attached detaip. Hall-Irwin will commit to <br />installing the necessary improvements to protect the gas line prior to disturbing Phase 2. <br />CIVIL ANG ENVIRONMENTAL ENGINEERING PLANNING <br />