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Colorado Division of Reclamation, Mining and Safety <br />July 15, 2016 <br />Page 3 <br />Section 4.05.4 (1-4) - Stream Channel Diversion and Channel Reconstruction <br />1. Please describe how the disturbance associated with the Meehan Draw crossing will be <br />reclaimed when the crossing structure is removed or cite the appropriate permit section <br />with the reclamation plan. <br />Response: A description of how the disturbance associated with the Meehan Draw <br />crossing will be constructed, maintained and reclaimed when the structure is removed has <br />been included in Section 2.05.6(2), Fish and Wildlife Plan. <br />Section 4.05.5 - Sediment Control Measures <br />1. Two irrigation systems are planned to be installed on the Garvey property to support the <br />post -mining land use. From Map 2.05.5-1 Post Mining Land Use, it appears that the <br />irrigation tail water will be directed to sediment ponds NHN-001 and NHN-002. Was the <br />additional water from the irrigation system considered in the SEDCAD modeling for the <br />ditches and the ponds? <br />Response: The additional tailwater from the irrigation system was not considered in the <br />SEDCAD modeling for sediment ponds NHN-001 and N14N-002. <br />2. DRMS has not verified the SEDCAD provided in the PR -01 application because some of <br />the adequacy questions need clarifying. SEDCAD will be verified when the adequacy <br />questions are answered. <br />Response: The adequacy questions regarding the SEDCAD modeling for sediment ponds <br />NHN-001 and NHN-002 have been answered. <br />Appendix 2.05.4(2)(e)-1 <br />1. On Map 2.05.4(2)(e)-1 it shows the irrigated pasture having 9" risers located on the west <br />and south boundary of the 18.8 acres. If the sideroll direction of travel is north to south <br />then only the western boundary of the area needs risers. Are risers being installed on <br />both the west and south boundaries of the irrigated pasture? <br />Response: Since the sideroll direction of travel is north to south, Map 2.05.4(2)(e)-1 has <br />been revised to show risers only along the western boundary of the irrigated pasture area. <br />2. Map 2.05.4(2)(e)-1 shows the risers for the irrigated pasture are 9" and the text on page <br />2 of Appendix 2.05.4(2)(e)-1 states the risers are 4". Please clarify the size of the risers <br />for the 18.8 acre irrigated pasture. <br />Response: Map 2.05.4(2)(e)-1 has been revised to show 4" risers will be used for the <br />sideroll on the irrigated pasture area. <br />3. The text on page 2 of Appendix 2.05.4(2)(e)-1 states that 4" risers will be spaced at 120' <br />intervals for the side roll irrigation supply line. Many side roll irrigation systems use a <br />set pattern of 50' intervals (or 3 wheel rotations) and therefore have risers spaced along <br />AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER <br />A Touchstone Energy' Cooperative ; <br />