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Page 2 Adequacy Issue Responce 4. Exhibit D-Mining Plan (a) Mining will start in Phase I. Phase II will be mined within the same time period as Phase I because of not being able to cross the drainage channel except during low water. After Phase I & II are mined out, ruining will proceed with Phase III, V & VI. Phase N will be [Wined with Phase III. Phase VII will be mined with Phase V. (b) Storage of fuel and petroleum products will be stored in standard steel fuel tanks. As required by the Storm Water Management Plan, berms aze required azound all containers to contain the volume of material stored in the containers in the event of a rupture of the container . A settling pond will be constructed for processed water(wash plant discharge) prior to discharge to the dischazge to the Gunnison River or drainage ditches. The settling pond will be constructed with two battles to increase detention time and allow for increased settlement. Total suspended solids limits are placed on processed water discharge by the Colorado Department of Health through the Discharge Permit system. (c)Settlement ponds, if required will be constructed by excavating a hole approximately 30' x 30' x 3' deep with a pipe leading from the pond to the dischazge point. Straw bales or silt fence is placed at the intake of the discharge pipe to collect suspended solids. The location of the ponds will be placed near the greatest depth of the gravel deposit, therefore it would only be a guess at this time where they would be located, other than within the affected limits. (d) The material processing site is located out of the riparian area. The site is located as far away from the River as possible keeping it on Delta Paving property. Mining Phase Il is within the 50 year floodplain. U.S. Fish and Wildlife Service has allowed ponds in the 50 yeaz floodplain if they aze opened up to ordinary high water to allow them to silt in and thus eliminate non-native fish habitat. It would appear that Phases N and VII are out of the 50 yeaz floodplain. (e) There will be no incidental materials mined from the pit. 5. Exhibit E-Reclamation Plan (a) Fertilizer of the type recommended and at the rate recommended by the seed supplier will be applied. (b) The intent on the reclamation of Phase II was for non-native fish habitat. After the maierial has been extracted, the river will run into and out the area during ordinary high water. Excavation may be required to open the area to the river. This will allow the river to reclaim the site as flooded bottomland and/or riverine habitat. There is very little if any topsoil within the Phase II area. In order to topsoil the slopes 1o the water elevation, topsoil would have to be trucked in and deposited on the slopes which would require a 404 permit. We would like to allow the native vegetation left around the island to spread to the disturbed areas and reestablish itself. This should happen in three of four yeazs. Cottonwood seedlings will be planted at 20 foot centers and wiilo~vs will be planted at 10 foot centers around the perimeter of the pit.