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i• <br />• <br />• <br />The entire coal loadout facility is drained by <br />perimeter ditches to two sedimentation ponds. The water discharge <br />from these ponds is governed by rigorous stipulations of the <br />discharge permit points Nos. 004 and 005. <br />o The other surface water drainages, the Fire Mountain <br />Canal and the Stewart Ditch, are not impacted by the coal loadout <br />facility. The Fire Mountain Canal is located topographically well <br />above the facility and the Stewart Ditch is on the other side <br />of the North Fork Gunnison River. <br />o The diversion of a small drainage near the silos <br />through a concrete channel, culvert and ditches and a <br />convergence with the Farmers Ditch were performed to prevent any <br />potential for flow losses or contamination. <br />It can be concluded that from the point of view of surface <br />water hydrology, there are no identifiable impacts on the <br />essential hydrologic functions caused by the coal loadout <br />facility. <br />5.2 IMPACTS ON GROUND WATER <br />The ground water present in the alluvial sediments in the <br />study area is highly affected by intensive irrigation of the <br />orchards. It is obvious from the measurements in the installed <br />monitoring wells that during the irrigation season (April through <br />October) the water table and the water quality in the alluvial <br />aquifer are impacted. <br />16 <br />GEO-HYDRO CONSULTING, ING. <br />