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• before the final topsoil <br />ash is as good or better <br />ground-water standpoint, <br />is expected to come in c <br />during the spring runoff <br />in May and June. <br />is replaced. Leachate tests show that the <br />than the enclosing clays from a <br />although only downward percolating rainfall <br />intact with the buried ash and that only <br />or the occasional 1" - 2" storms received <br />Coors Energy Company may also haul ash from other industries in the <br />future. At this time, these potential sources are not known, <br />however, should Coors Energy Company acquire such accounts, results <br />of leachate and trace element tests as required by Weld County and <br />the Colorado Department of Health will be submitted prior to any <br />disposal of such ash. <br />Existing Uses <br />The type of land uses that exist in the vicinity of the proposed ash <br />disposal area is restricted to rangeland, oil and gas production, <br />and coal mining. <br />Proximity to Residential Structures <br />The closest inhabited structure is located approximately 1.90 miles <br />north of the proposed ash disposal site. The next closest <br />residential structure lies 3 miles south of the ash disposal area. <br />Please refer to v.ir-inity and nlnt. mans at the hack o{ this report. <br />Users <br />The ash disposal operation is to run concurrently with mining <br />activities. Only ash products are to be disposed of, and only ash <br />that meets disposal standards as determined by using the EPA E:P <br />'toxicity 'test end 'Grace Metal Analysis. Disposal operations would <br />be under the direct control of Coors Energy Company. <br />Hours of Gperation <br />Coal trucks start arriving at 3:00 A.M. and finish loading at 11:00 <br />P.M. There are 42-48 loads per day. Four of these will be <br />back-hauling ash so the dump area will be open during these hours. <br />These truck drivers load their own trucks so they will be expected <br />to unload their ash loads also. If they need assistance, radio <br />contact is available with the production Foreman on each shift. <br />Water <br />Water foi~ personal use is drawn {rom a Laramie-Foxhills well at a <br />maximum rate of 80 GPM. Another Laramie-Foxhills well is available <br />for dust suppression at 90 GPM. A fire protection well is <br />• maintained as well as numerous shallow sumps in various parts of the <br />mine. No needs for water in the ash pits are anticipated. <br />-3- <br />