Laserfiche WebLink
3.6.2.3 Alternative Water Supply <br />• Water supply was provided by two wells at the loadout site. One <br />supplied water to the water storage reservoir and a smaller well <br />was used for potable water supply. <br />The reservoir provided water to the dust suppression and coal <br />washdown systems. The reservoir was composed of two cells, a <br />sediment control unit and a clean water storage unit. The sediment <br />control unit was designed to contain disturbed area runoff and <br />washdown water for a period of time sufficient to settle out <br />suspended solids from these waters. The clean decant from this <br />well flowed through a weir to the storage unit where the water was <br />recycled back to the dust suppression and washdown systems. <br />Mean annual water use at the loadout was estimated at 7.46 acre- <br />feet. The reservoir water level was maintained at 6.75 acre-feet <br />by float-controlled pumps. This provided the reserve capacity <br />required by the water augmentation plan. Total capacity of the <br />reservoir was 11.1 acre-feet. This excess capacity ensured total <br />retention of back-to-back, 100-year storm events. <br />Water was obtained under rights purchased from the Anschutz <br />Corporation. Details of the augmentation are presented in Section <br />4.6.2.3.6 and a copy of the plan is included in 3-T. <br />• The water use at the loadout is no longer viable and is a non-use <br />status. <br />• 3-95 Rev. 6-10-93 <br />