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iii iiiiiiiiiiiiiiii <br />STATE OF CC1t~uxtiliv <br />MINED LAND RECLAMATION DIVISION <br />Deparlmem of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, CO 60203 <br />303 666-3567 <br />Fax: 303 632-6106 <br />OF Cp~ <br />i,~" \q-r <br />N! , <br />~l$ <br />~'/. <br />'/9'r6~ <br />Roy Romar, <br />Governor <br />Freo R. Banta. <br />DATE : J une 26 , 1490 Division Drtector <br />T0: Tony Waldron <br />FROM: Jim Pendleton <br />RE: Eagle ~. 6 Pro~9se'd Longwall Monitoring Program <br />I have finally obtained a few minutes to review the proposed longwall <br />monitoring program which Cyprus Empire Corporation submitted for <br />implementation at their Eagle No, 6 mine. I regret that mY fiscal year end <br />duties have delayed my review for so long. <br />The monitoring plan looks acceptable. I have only two minor concerns. As <br />usual, Cyprus Empire states "Monitoring of any given point: will continue until <br />two successive surveys indicate subsidence has ceased. Monitoring of a point <br />satisfying this criteria will then be discontinued." In general this approach <br />will probably work. However, to avoid disagreement, it would be advisable for <br />the operator to inform the Division of their intention to cease monitoring so <br />that concurrence can be obtained from the Division. Further, monuments should <br />be retained following cessation of monitoring, in case further monitoring <br />should be necessary for any unforeseen reason. <br />I recommend approval of the monitoring plan as submitted by Cyprus Empire <br />Corporation. Please advise the operator of nD' two concerns. <br />cc: Mike Savage <br />Doc. No: 8308E <br />JP/JP <br />