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~- 4. Water table information was provided for a site north of the equipment storage area. The information was obtained by digging a pit on 11-27-g1. The water table on this date would probably be quite low compared to water table elevations during and shortly after the peak runoff season. Provide a ground water evaluation of your proposed pit site with data and cross sectional drawings of the water table demonstrating that your proposed mine plan will not intercept ground water at any time of the year. This evaluation should be completed by a hydrologist or engineer with expertise in this field. As an alternative to this, show that you have applied for any necessary well permit and NPDES permit if dewatering and discharge to the river is necessary. 5. The Division of Wildlife cautioned that the excavation should take place in a manner to prevent excessive siltation of the river. The Mined Land Reclamation Act C.R.S 34-32-116(7)(8) requires that disturbances to the quality of water be minimized. Please describe ail measures you will take to minimize negative effects on water quality, including a description as to how the river channel will be diverted without excessive sedimentation increasing downstream. Exhibit C - Mining Plan You have stated that there is no waste rock over the gravel deposit. Is there any waste rock within the gravel deposit? If so, what is the disposition of this material? 2. The Act, in CFR 34-32-103(1) includes work areas, parking areas, storage areas, and areas where equipment and machines which are used in such operations are situated, as areas of affected land. Include the proposed equipment storage area as affected land if it will be used in conjunction with this operation. 3. You have stated that surface water will be bermed and/or channeled from active workings so as to minimize any potential disturbances. Are you referring to all surface water or just the Uncompahgre River? Show the location of berms and/or channels on the Exhibit E Map. Provide construction specifications for these features. Demonstrate that the operation would be protected during a 100-year, 24-hour, storm event. Provide evidence that off-site damage will not occur as a result of constructing these features in the river channel. 4. Your mining plan indicates that surface water (Uncompahgre River) will be intercepted by berms and/or channels. The river will be diverted from the Phase II extraction area through the Phase I extraction area prior to operations in the Phase II area. Describe the effects the berming or channeling and gravel extraction will have on water quantity and quality. Provide evidence that water quality will not be significantly diminished by extraction or construction activities in the permit area.