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Delta Sand and Gravel. • <br />PIT #1 Amendment <br />M.L. R.B. is M-77-020 <br />July 13, 1997 <br />EVAPORATIVE LOSS AND INDUSTRIAL USES <br />OWNERS - S&R DELTA PARTNERS L.L.L.P. <br />The water needed for processing will be obtained from <br />sources available at the site and covered by Well Permit NO. <br />0394289-F. The permit will be revised to cover the entire 19.64 <br />acres ± of west lake area and the industrial uses at the site. <br />Delta Sand and Gravel Co. will take the necessary steps to <br />adjudicate the water for the intended uses. A recap of water use <br />for all phases of the mining and reclamation plan is shown in the <br />following information. <br />DATA <br />Acres of lake 19.64 ac.t <br />NOAA map average evaporative loss 46.25 inches <br />Average annual rain fall 7.49 inches <br />Effective rainfall factor 0.70 <br />CALCQLATIONS <br />NET EFFECTIVE RAINFALL 0.70 * 7.49 = 5.22 INCHES <br />NET EVAPORATION 46.25 - 5.22 = 3.42 FT. <br />I2 <br />NET LAFCE EVAPORATION 19.64 * 3.42 = 67.16 RouNn TO 98 AC-FT. <br />RECAP FOR EXPECTED LOSSES AND USES AT THE OPERATION <br />• Gravel processing, gravel loss and <br />dust control leverage Lossl <br />• Lake Surtace Evaporative loss <br />• Reclamation - <br />TOTAL <br />17.00 ac-ft per year <br />68.00 ac-ft per year. <br />0.00 ac-ft. <br />85.00 ac-ft per year <br />8 <br />