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XX. Concurrent Surface and Underground Mining - Rule 4.22 <br />No concurrent surface and underground mining is planned for the permit renewal period. <br />XXL Auger Mining - Rule 4.23 <br />No auger mining is currently proposed in the mine plan. However, auger mining was done in <br />1993 in the Section 11 Pit. Further, highwall mining in the East Pit, West Pit and South Taylor <br />Pit has been approved (PAP, Section 4.23). Highwall mining was not originally permitted for <br />the South Taylor Pit during the Permit Revision 02 review process, leading to the Division <br />adding Stipulation 9 to the permit. This stipulation was terminated with the submission of TR- <br />77, which permits limited highwall mining in the South Taylor Pit area. <br />XXIL Operations on Alluvial Valley Floors - Rule 4.24 <br />The Permit was found to be in compliance with Rule 4.24. <br />Information related to alluvial valley floors is found in Sections 2.04.7, 2.06.8 and 4.24; Exhibit <br />7; and Maps 7, 11, 11A, 12, 12A, 17, 32 and 37 of the PAP. A detailed summary of alluvial <br />valley floors identified during the original permitting of the Mine can be found in the original <br />findings document. <br />A. Designation of Alluvial Valley Floors <br />Stream Valley Segments Determined to be Alluvial Valley Floors <br />The Division has made the determination that portions of four drainages with segments in or <br />adjacent to the permit area are considered alluvial valley floors: Good Spring Creek, Wilson <br />Creek, Lower Elkhorn Creek, and Jubb Creek. These stream valleys are shown on Map 11A of <br />the PAP. The following stream valley segments have been determined to be alluvial valley <br />floors: <br />• Good Spring Creek valley deposits mapped as Qa on Map 11A, extending from the West <br />Fork Good Spring Creek confluence downstream for the entire length of the valley. <br />• Upper segment of Wilson Creek valley deposits mapped as Qa on Map 11A, from the <br />confluence of East and West Forks of Wilson Creek, downstream to the approximate <br />center of Section 7, T3N, R93W. <br />• Lower segment of Wilson Creek valley deposits mapped as Qa on Map 11A, extending <br />from lower boundary of "Area Affected by 1985 Erosion and Mass Wasting Event." <br />Proposed Decision and Findings of Compliance January 2012 <br />Permit Renewal 06 Page 154 <br />