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MINING PLAN E%HIBIT D ~CONT) can be pumped and place wherever it is needed. This will also reduce the amount of reclamation work needed on the below water slopes. Whythe dry method of mining is used the side slopes will be mine to-their final configuration. A single-ditch owned by the Western Mutual Ditch Company (WMD) is shown on the maps. This ditch will not be affected by the mining operation and only serves a delineation line on the east side. Internal ditches used by the ranching operations are owned by Tom Sharkey-and_can=-be-relocated or abandoned as mining progresses across the property.- In the Sharkey's Lake area there are no ditches that will be affected. The irrigation waste ditch that runs thru the Highlands Lake, Bluffs Lake and Lake St. Vrain areas east of the internal road north/south road is owned by Mr. Sharkey. It drains the areas now being irrigated on the south end of the property and serves as the transport system for the stock ponds on the north end of the Bluff Lake area. Provisions will be made as the area east o the road is mined-. t~keep~t_open~f_nee ed_._ The material being mined, whether by a dredge or another method using dewatering is essentially wet so we expect no unusual dust control problems. can only estimate the amount of water needed_for__dust control at t is ime. The actual `amou is needed will be addressed when we apply for the Senate Bill 120 Well Permit thru the Stated Engineers office. Most of the water we use for dust control will be used on haul roads. On a typical-operation-of-this-type-we use-8 to 14-ac-€t-per--year. We can also expect to lose_4%-by weight with the exported gravel. Wherever the mining operation is adjacent to the South Platte River a 200 foot minimum setback will be maintained. This is solely for safety reasons and should not be construed as anything else. The only place this happens is on the southwest side of-Sharkey's-L- T =A7onq he rest of the river we have used existing fences or natural tree lines as the mining limits. In these areas we will maintain an additional 25 feet from the fence or tree line. The-setbacks long the~7.estern Mutual Ditch will b~a_minmum of_50 feet, and-in-most cases-wil-l-be -below--the ditch. All the setbacks will contain access roads around the lttined,area and some topsoil will be stored on those away-from the river. The setback lines on the map are the indication of the mining limits, i.e. the top of the slope into the lake area. Once the bank slopes are established and we are assured the setbacks will no longer be disturbed they will be reclaimed in the prescribed manner. It is important to remember that the setbacks discussed above are-area-mirtiing backs. This means that they~may-be narrower when the area is reclaime7 because of natural erosion-occurring in the river We do not plan to armor --- - the riverside banks under this=plan_and_we expect some erosion over time. The landowners may choose_to_do_work-along_.the-river to_protect their property. We_may_so_some-of that-work-under. ontract with them but it will not be_done__as part of--this plan- As noted above the area-need"ing reclamation will be no more than 35.00 acres ± at one time. 9