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w^lls on the western part of the property, west of River3ale Road will not be affected by the lowered water levels created by the new lakes. The maximum spread of drawdown resulting from the prtsence of the lake will be approximately 2,200 feet. These wells are located approximately 2,000 feet from the lake. In addition, seepage from the bottom of the Brantner and Lower l" ^ar Creek ditches will ensure that the lateral expansion of drawdowns will not extend beyond the ditches. The South Platte Ri~•~r, south and east of the property, forms a hydrologic boundary a 3 will restrict the drawdowns from the lakes to the mining property. .he domestic, stock and irrigation wells south and east of the river will got experience any lowering of water levels due to the crea~ion of the lakes. Water Quality There is no impact from water quality, therefore, no mitigation is required. Drainage The existing levees along the south boundary of the site an3 along the west banx o~ the So~`_h Platte River will be maintained at their present 1 :els. To change them either higher or lower would change the flood plain and flood flow 7 characteristics which may increase the uamage p ' for other 4.eas. The lake banks should be kept 00 to 300 ~ D-a o ~f feet from the levees. This will help keep any erosio extending off the site and help maintain the existing flood flow patterns. Lake banks, especially the southern 1~nks shouicl be kept as flat as possible and planted with suitable vegetation to help control erosion during floods. Peninsulas extending into the south lake should be constructed at a maxLnum height of three feet above the final lake level. Tree planting should be in a manner ~~ allow easy passage of flood flows. North-South .._lignments along the east and west shores would be ideal. No new structures for permanent occupation will be allowed. Other structures and stockpiles of materials will be alliyndd with-their longitudinal axes in the direction of flow. -IS-