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Final -Restoration and Compliance Plan for May Day Idaho Mine Complex <br />Administrative Order for Compliance, Docket No. CWA-08-2012-0011 <br />6.0 COMPLIANCE WITH SECTION 404 <br />The existing impacts due to the Mine Access Road were authorized under NWP 14, as <br />described in Section 2.1. It is proposed to authorize the following activities under NWP 32 for a <br />total impact of 0.043 acre: <br />• 0.015 acre of impact to channel at the Chief Portal site, <br />• 0.028 acre of impact from the stormwater pond. <br />An additional 0.079 acre of mitigation will be provided, as documented in Table 3. The riparian <br />tree plantings will also be completed. <br />7.0 MONITORING PLAN <br />7.1 WORK AT CHIEF PORTAL AND MINE ACCESS ROAD SITES <br />The work will be documented with photographs and observations by a Professional Engineer. A <br />monitoring program will be implemented to measure the magnitude and rate of movement of <br />along the mine access road and the retaining wall, as recommended in the geotechnical report. <br />The fill and culvert crossing at the Chief Portal will be maintained to prevent debris blockage. <br />Woody material and other debris upgradient of the culvert will be routinely removed. <br />7.2 WETLAND MITIGATION SITES <br />A wetland mitigation monitoring report will be prepared and submitted by December 1, 2016 to <br />document conditions at the wetland mitigation sites. This plan wil! include a description of the <br />construction of the additional 0.079 acre of mitigation and an as-built drawing. <br />The native riparian tree plantings will be monitored for a minimum of three years to assess their <br />success. <br />7.3 REPORTING <br />The Construction Completion Report will be provided to the USEPA within six weeks from <br />completion of the work. <br />June 2016 Bikis Water Consultants, a division of SGM Page 16 <br />Case 1:16-cv-02008-WYD Document 2 Filed 08/08/16 USDC Colorado Page 46 of 82