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Midterm Review -Edna Mine <br />This document presents the results of the Midterm Review of The Pittsburg & Midway Coal <br />Mining Company's (P&M) Edna Mine, conducted by the Colorado Division of Minerals and <br />Geology (the Division). This Midterm Review was conducted to fulfill the requirements of the <br />Colorado Surface Coal Mining Reclamation Act, and Rules 2.08.3, 2.06.2(9), 2.06.3(4), 2.06.5(3), <br />2.06.7(5), and 3.02.2(4) of the Rules and Regulations of the Colorado Mined Land Reclamation <br />Board for Coal Mining, promulgated to implement the Act. <br />Rule 2.08.3 requires that the Division conduct a review of each permit issued, prior to its midterm <br />(2~/z years). Based on this review, for good cause shown, the Division may require reasonable <br />revisions to, or modifications of, the permit provisions to ensure compliance with the Act and <br />Regulations. <br />Rules 2.06.2, 2.06.3, 2.06.5, and 2.06.7 require that during the midterm review, where applicable, <br />experimental practices, mountaintop removal variances, variances from approximate original <br />contour (AOC), and variances from contemporaneous reclamation, respectively, be reviewed by <br />the Division. The Edna Mine does not conduct experimental practices, nor have variances been <br />granted for mountain top removal or approximate original contour. However, the Division has <br />previously granted a variance from contemporaneous reclamation (see Section IV of this <br />document). <br />Rule 3.02.2(4) requires that the Division review the amount of performance bond liability and the <br />terms of acceptance of the bond every 2'/z years. <br />This midterm review consisted of a detailed review of the Edna Mine permit application and <br />previous Division findings of compliance to identify any items that may have been overlooked <br />during the initial review. The Division also reviewed all subsequent revisions and stipulation <br />responses to ensure that all permit commitments and conditions were being followed. Hydrologic <br />monitoring data was reviewed in conjunction with the review of the application to assess the <br />adequacy of the monitoring plan and discussion of predicted hydrologic impacts. Problems and <br />observations from past Division inspection reports were also considered. <br />E4na Minc (C-80.001) May 18, 1999 <br />Midlcmt Rcvicw ] 77iiN Pcrmit Tcnn <br />