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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 C O L O R A D O <br />Denver, Colorado 80203 D IV IS I ON OF <br />Phone: (303) 866-3567 RECLAMATION <br />FAX: (303) 832-8106 MINING <br /> <br /> SAFETY <br />Interoffice Memorandum <br />To: Joe Dud ash <br />From: Kent Gorha <br />CC: Sandy Brow <br />Subject: PR-12, West Mine Expansion, Bowie No. 2, C-96-083 <br />Date: November 10, 2010 <br />As requested in your memo dated November 8, 2010, 1 have reviewed the revised <br />materials for Permit Revision No. 12 (PR-12) submitted November 5, 2010 by Bowie <br />Resources. <br />In the latest submittal, the operator has changed the orientation of the longwall panels <br />from east-west to north-south. The general outline of the predicted subsided area is <br />very similar with very minor exceptions. <br />My original comments for this revision are repeated below in italics. Questions #1 and <br />#2 were adequately addresses through previous submittals. My remaining question <br />was a reminder to the operator that the pipeline is "property" and the pipeline owner is <br />required to be notified as required by Rule 4.20.2. <br />I have no additional concerns with this revision. <br />The operator has provided the information required by Rule 2.05.6(6)(b) [worst possible <br />consequences] for the Stevens Gulch road, Stevens Gulch, and the Pitkin Mesa <br />pipeline. They have also included information required by Rule 2.05.6(6)(b)(iii)(8) [a <br />subsidence control plan]. The features are shown on revised Map 9, Hydrologic <br />Monitoring Locations and adequately described as required. <br />The Stevens Gulch road will be subsided and the applicant states the road is protected <br />where severe damage would occur by limited extraction (page 2.05-137). <br />The Division does not agree that Stevens Gulch road is protected by limited <br />extraction areas from activities as proposed under PR-12. Permit text on page <br />2.05-141 accurately describes the subsidence consequences and mitigation <br />for the Stevens Gulch road. Please correct the permit text on page 2.05-137. <br />Office of Office of <br />Mined Land Reclamation Denver - Grand )unction - Durango Active and Inactive Mines