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Trapper Response to Comment 14 (a): Please refer to mapping comments. <br />Rule 2.05.3(4) Ponds, Impoundments and Diversions <br />DRMS notes that pond designs contain the 25 year 24 hour event and comprise a <br />single open channel spillway. Also, that two curve numbers were employed, one for <br />disturbed and another for a different classification of land use. It is unclear form the <br />information and mapping provided where in the watershed the two different land uses <br />should be delineated and thus where these sub watersheds should be delineated. It is <br />also unclear where various structures (currently Null) would be located. DRMS infers <br />that some of this information would become more clearly defined once a mine plan is <br />put forward and would review additional pond design details at that time. From the Map <br />submitted (Map 51), it is not clear which pond is pond 1 and which is pond 2 for both <br />Deacon and Jeffway ponds. Spillways and ponds appear to be adequately designed, <br />however DRMS would appreciate additional subwatershed details to fully assess the <br />designs submitted. DRMS notes the missing information on Table 4.8-7, that work is <br />underway to provide the missing design information and that the information will be <br />presented in a forthcoming revision. This aspect of the Rules is adequately addressed <br />in the permit with the exception of: <br />14. There is no indication that these designs were prepared by, or under the <br />direction of a registered professional engineer as per Rule 2.05.3(4)(a)(i) A. <br />Trapper Response to Comment 14 (b): Revised Appendix Q Sections YXYVIII (Deacon Gulch), .1= <br />(Deal Gulch #2), and AXYY (Jeffway Gulch) SEDCAD runs are enclosed that include stamped PE <br />certifications by professional engineer Tom Paulson, who designed the ponds. <br />15. Please describe the operation and maintenance requirements for each proposed <br />structure; as per Rule 2.05.3(4)(a)(ii) C, or indicate where this is information <br />resides in the permit. <br />Trapper Response to Comment 15: Section 4.8.1.4 (pages 4-197 and 4-198) of the PAP gives operation <br />and maintenance requirements for the proposed pond structures. <br />16. Please advise DRMS if any stream channel diversions, beside the Deal Channel <br />are planned for this expansion area. <br />Trapper Response to Comment 16: No other stream channel diversions will be necessary. <br />17. Please advise DRMS if these ponds should be considered permanent <br />impoundments. <br />Trapper Response to Comment 17: A decision on whether to retain these particular ponds as permanent <br />will not be made until sometime after they are built and we have had a chance to observe how well they <br />would function as permanent impoundments. <br />