Laserfiche WebLink
<br />Exhibit G - Water Resources <br />Mining is expected to have minimal irt~act on the prevailing hydrologic <br />balance. The site to be mined lies on a high, dry terrace remnant. In <br />general, the landslope, in the area to be affected, is low -- ranging from <br />nearly level to a few percent. No streams, springs, surface water <br />irt~oundments or ditches exist within the actual area area to be disturbed. <br />An irrigation canal, the M&D Canal, does lie within the permit boundary <br />along the extrane eastern edge but will not be disturbed by the operation. <br />The canal is owned by the same owner of the permit area -- the Uncompahgre v~~ <br />A l <br />Water Users Association. <br />Surface Runoff and Sediment Control <br />Runoff on the affected area is limited to periods of snowmelt and <br />sumrer storms and occurs primarily as gentle overland flow in a northerly <br />direction. Because of the site's topographic setting only minor surface <br />control will be required to manage stormwater runoff from the disturbed <br />area and isolate such runoff on site. <br />Except for a small section of the permit boundary that parallels <br />Ranger Road on the extrene south side of the site, the permit area lies at <br />the absolute head of the local drainage divide. Consequently, there is no <br />need to create any ditches or berms to intercept and divert upland runoff. <br />Ranoff on the section adjacent to Ranger Road is intercepted and diverted <br />by existing ditches along the roadway. <br />Within the disturbed area, initially the pit itself will isolate storm <br />water. Sirt~le lateral ditches and low earthern berms will be field <br />engineered as necessary within and around the perimeter of the disturbed <br />area to isolate runoff and maintain it on site. Once the pit begins to <br />-12- <br />