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'resulting in only 2.16 acre-feet of water used and consumed for dust control; and less <br />than 5,000 tons (rather than the 140, 000 tons estimated) of mined product was shipped <br />out; thus resulting in only 0.11 acre-feet of water lost with the mined product. Therefore, <br />the total consumptive use for the period of April 2002 thru 20 April 2003 wes only 3.77 <br />acre-feet, 5.54 acre-feet less than the allowed 9.31 acre-feet as stated in the approval <br />letter. Due to other permits, the actual operation period was from 28 AUG to 22 OCT <br />2002, much shorter than planned. <br />We anticipate that our operations during the 2003 operating season will be closer to that <br />proposed in the amended Substitute Water Supply Plan, which would be: Evaporetlon <br />from open water estimated at 4.54 ac-B-feet; wafer shipped with product estimated at <br />4.12 acre-feet, water used for washing of product estimated at 1.62 acre-feet, and dust <br />control using an estimated 4.36 aces-feet; for a total consumptive use of 14.64 acre- <br />feet. <br />This may change to a significantly lower number based on a number of factors, <br />including a continued low water table along the river, .thinner overburden, and more <br />efficient operations, even if demand is at or above the estimated 140, 000 tons/year. <br />If you have furtherquestions, please contact either. <br />Aryol Brumley, Manager, Four States Aggregates LLC, 970-565-3388, or <br />Nathan A. Barton, PE, DEE, Environmental Engineer, 970-218-4133. <br />Four States Aggregates LLC <br />