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* Rate is lbs./Acre PLS for drill seeding, rate should be doubled for broadcast seeding <br />15. The Division requests that the applicant clarify if any areas within the affected land will be revegetated <br />for the purpose of creating wetlands and/or riparian habitat. If yes, specific seed mixes and site grading <br />plans will need to be developed fur each vegetation type. The site grading plans will need to be designed <br />[o Facilitate the hydrologic conditions necessary to support wetlands and/or riparian habitat. Also, <br />consideration should be given to reestablishment of woody vegetation, such as cottonwoods or willows, for <br />any areas to be reclaimed to riparian habitat or for removal of any large, old-growth cottonwoods due to <br />excavation. Attached are lists of riparian and wetland species that should be considered for incorporation <br />in to such seed mixes and the addresses of several companies that specialize in providing seed for wetland <br />and/or riparian species. Please address. <br />6.4.7 EXHIBIT G -Water Information <br />]6. The applicant describes on page 1 I management of on-site drainage. In conformance with Rule <br />6.4.7(2)(c), please clarify whether operation of the dewatering, plant processing, sediment control, and <br />offsite discharge system will require pumping or whether operation of such system will occur exclusively <br />via gravity discharge. For example, will pumping be required to convey from the dewa[ering trench to the <br />sedimentation pond? Will pumping be required to convey waters from the dewatering trench to other <br />locations within or adjacent to the affected land, such as the plant site, planned areas for cottonwood <br />irrigation, Trout Creek, or [he Yampa River? If water is needed for processing (crushing & screening), <br />please desribe how process water will be managed to protect against pollution of either surface or <br />groundwater. Please address. <br />17. Please clarify the various project water requirements during both the mining phase and final <br />reclamation when the site will be reclaimed to a large pond, as required by Rule 6.4.7(3). Project water <br />requirements may include water needed for dust control, water in product, water needed for processing of <br />aggregate, make-up water, water lost through evaporation, etc. (This information should be quantified in <br />the applicant's approved well permit). <br />18. Please clarify the projected amount from each of the sources of water to supply the project water <br />requirements for the mining operation and reclamation, as required by Rule 6.4.7(4). (This information <br />should be quantified in the applicant's approved well permit). <br />l9. In conjuction with Rule 6.4.3(f), please provide a map or exhibit that shows the "floodway" and the <br />100-year Floodplain for Trout Creek and for the Yampa River in the vicinity of the proposed operation. <br />Also, the Division requests that the applicant provide the results of any floodplain studies for either Trout <br />Creek or [he Yampa River in the Milner-Steamboat Springs area. Of particular concern is [he location of <br />any nearby structures, such as bridges, that may cause a constriction or change in the natural flow path of <br />the creek or river. Such structures may have a direct impact on floodflow conveyance and may exacerbate <br />the potential for downstream Flooding (in the proposed 45-acre permit area). Please address. <br />20. [n conformance with Rule 6.4.7(2)(a), please characterize the flow regime of Trout Creek, ie: <br />perennial, intermittant, or ephemeral. <br />21. In conformance with Rule 6.4.7(2)(a), please characterize the operation of any active irrigation ditch or <br />laterals [hat occur on or within 200 feet of the affected land such as the Clark Ditch. Specifically, is the <br />ditch/lateral lined or unlined? If unlined, have expected seepage losses already been quanitified by the <br />owner and/or operator of the ditch? What is the season of use or time of year that the di[ch/la[eral is <br />