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is required in: <br />1. East Flume 2. East Middle Flume 3. East Pyeatt <br />4. Horse 5. Middle Flume 6. Oak <br />drainages if mine -contaminated water is discharged. <br />B. Diversions and Conveyance of Overland Flow <br />Drainageway reconstruction is discussed under Section 4.8.1.3, Vol. IV of the <br />permit application. Channel lining structures, retention basins, and artificial <br />channel roughness structures are proposed for use to control erosion. The applicant <br />uses rock check structures, various geotextiles, and rapid growing vegetation within <br />reconstructed drainages to control erosion. (4.05.4(2)(a)). <br />C. Sedimentation Ponds <br />Sediment ponds are discussed under Section 4.8.1.4, Vol. IV of the permit <br />application. <br />The applicant uses sedimentation ponds in all disturbed drainages to control <br />increased sediment loads resulting from disturbance within the ephemeral drainages <br />on the mine site. All sediment ponds are designed to contain or treat, at a <br />minimum, the 10 -year, 24-hour event and to safely pass the 25 -year, 24-hour event. <br />One MSHA size pond exists on the site in the Coyote drainage. <br />As per RN6 Portions of haulroads, topsoil stripping areas and mining areas are <br />projected for the next permit term (2013-2017) outside of the currently approved <br />drainage and sediment control plan boundaries. Given this, the Division proposed <br />to approve the renewal application (RN -6) with the following stipulation: <br />Stipulation No. 21: <br />The operator must submit and receive approval for a permit or technical <br />revision to update the drainage and sediment control plan prior to any <br />disturbance outside of the currently approved drainage and sediment control <br />plan boundary. <br />As of November 2017 this stipulation has been met as follows: <br />Trapper submitted pond designs for Deacon and Jeffway ponds. DRMS reviewed <br />these pond designs as part of PR8 and has found the pond designs adequate according <br />to Rule 4.05. <br />D. Surface and Ground Water Monitoring <br />1. The applicant will conduct monitoring of ground water in a manner approved by <br />the Division. The ground water monitoring plan can be found in Section 4.8. <br />5.2a, Vol. IV of the permit application (4.05.13(1)). <br />2. The applicant will conduct monitoring of surface water in a manner approved <br />by the Division. The monitoring plan was submitted under 2.05.6(3)(b)(iv) and <br />17 <br />