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<br />Mid-Term Review <br />Hayden Gulch Mine - Permit No. C-80-003 <br />This document presents the results of the Division's mid-term <br />review for the Hayden Gulch Mine. This review was conducted to <br />fulfill the requirements of Rules 2.08.3, 2.06.2(9), 2.06.3(4), <br />2.06.5(3), 2.06.7(5) and 3.02.2(4). <br />Rule 2.08.3 requires that the Division conduct a review of each <br />permit issued prior to its mid-term. Based on this review, for <br />good cause shown, the Division may require reasonable revision or <br />modification of the permit provisions to ensure compliance with the <br />Act and Regulations. <br />Rules 2.06.2, 2.06.3, 2.06.5 and 2.06.7 require that experimental <br />practices, mountaintop removal variances, variances from AOC, and <br />variances from contemporaneous reclamation be reviewed by the <br />Division where applicable. The Hayden Gulch permit does not have <br />any operations under these categories. <br />Rule 3.02(4) requires that the Division review the amount of the <br />bond and the terms of acceptance of the bond every 2 1/2 years. <br />This is covered in Section III on this document. <br />The review consisted of a review of all previous findings documents <br />associated with the mine, all previous mid-term reviews, annual <br />reclamation. reports, revisions and stipulations and the annual <br />hydrology reports. In addition to this, the field reports were <br />reviewed. <br />The document is organized as follows: Section I includes a summary <br />of any changes or revisions that need to be made to the permit and <br />the justification for those changes. Section II summarizes any <br />revisions to the permit since the last renewal and lists any <br />stipulations and responses since renewal. Finally, section III <br />discusses the current state of the bond liability and reclamation <br />bond on hand for the H-G Mine. <br />I. Summary of changes requested <br />A number of changes are being requested as a result of this mid- <br />term review. These changes can all be incorporated into one <br />technical revisions which should be submitted by September 15, <br />1994. Following is a list of the requested changes or updates to <br />the permit. <br />1) Over the past few years the area that was backfilled and graded <br />up to the south highwall has continued to settle and slump. <br />The displacement has been as much as three feet in some areas. <br />