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C~ 4.3.3 Waste Stream The only waste that will be accepted other than the present wood, paper and scrap from the mine is a 50-50 mixture of flyash and bottom ash from the Coor's Brewery Power plant. (See chemical analysis and leachate tests in appendix). Ouentities will not exceed 100 cubic yards per day. No eah or other waste from any other source will be accepted. The mine operates 24 hours per day, seven days a week so that no one can enter the property without being monitored. Security guards are employed during any special times, such as, holidays and group vacation periods. • There are no stream laid deposits holding a stream within 2 miles of the ash disposal, life-of-mine boundary, See Appendix U-1. Ennis Draw which lies immediately on the east of the boundary does not hold a stream. Ennis Draw is a relatively brood, flat, topographic low in which no stream channel is defined. No evidence of a presently existing perennial, ephemeral, or intermittent stream in Ennis Draw has been observed. There is subsurface evidence that a stream once existed in the draw, but these deposits have been covered over by the existing wind blown deposits. As shown in lisp 4.6.3 (e), the subsurface water system of Ennis Draw has been co: ducted ~d~acent to the draw. There ham beep no :e, nor i.. there anticipated to be, a significant impact to the ground-water levels in this area. Box Elder Creek is located about 3 miles west of the proposed ash disposal site. At this time, however, it is not anticipated that ash disposal will progress far enough west to effect ground-water flow to box Elder Creek. Aa explained in the report of hydrologic investigations, the quality of post ash disposal activities on the ground-water is not expected to differ substantially from that which now exists. (See Water ouelity Data, Section 4.5.7, Water Quality and Appendix B, Ash test results). Therefore, neither the quantity nor quality of waters associated with Box Elder Creek or Ennis Draw are expected to be affected. In any case, the discharge through the life-of-mine area is very small. The ground-water discharge through the area was previously estimated to ac-ft.7 or only 3 gpm, however, based on observations o. tfie ac~'ve pit area, this discharge rate through the area may be h h. ~~~.~,,~ -~- 1 r~~~~ Y~Q~ ~OS~,.,..~~~~or blU-`r Sri l ~C ~D~ YtA