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s • <br />TABLE 1 <br />DERIVATION OF MONTHLY EVAPORATION RATES <br />a <br />BENT COUNTY READY-MIX GRAVEL PIT <br /> <br />9 <br /> <br /> <br />Month <br />(1) Monthly <br />Distribution <br />(9'0) <br />(2) Gross Lake <br />Evaporation: <br />(in) <br />(3) <br />Precipitation' <br />(in) <br />(4) Effective <br />Precipitation: <br />(in) ~ <br />(5 Net Lake <br />Evaporation <br />(in) <br />(6 <br />January 3.0 1.71 0.39.. 0.27 1.44 <br />February 3.5 2.00' 0.51 0.36; 1.64 <br />March 5.5 3.14 0.94' 0.88 2.48 <br />April 9.0 5.13 1.09, 0.77; 4.36 <br />May 12.0 8.84 2.07' 1.45 5.39 <br />June 14.5 8.27' 1.70 1.19' 7.08 <br />July 15.0 8.55 1.81; 1.27' 7.28 <br />August 13.5 7.70 1.40 0.981 6.72 <br />September 10.0 5.70 1.22 0.85 4.65 <br />October 7.0 3.99' 0.87' 0.471 3.52 <br />November 4.0 2.28 O.SS 0.39' 1.89 <br />December 3.0 1,71 0.33 0.23 1.48 <br />Total 100.0' 57.00 12.88 8.88 48.12 <br />Explanation of Columns: <br />2) Montnly distribution from "General Cnterie for Substitute Water supply and Augmentation <br />Plans for Santl antl Gravel Pits Submitted to the State Engineer Pursuant to Senate Bill 120." <br />3) Interpolated from "Evaporation Atlas for the Contiguous 48 United States," NOAH TeMnical <br />Repoli NWS 33 Mep 3, U. S. Departmard o} Commerce, June 1882, <br />4) From Las Animae weather station, 1980-1894 average. <br />5) Column 4 x 0.70 ("State Engineers General Criteria for SB120," April 18, 1990). <br />8) Column 3 minus Column 5. <br /> <br />a <br />v <br />SO'd -7-d `uaswE~ <br />LLCM '8 uo;LaH H8i=0i 00-ii-~dy <br />