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<br />N <br />~ <br />"" <br /> <br />" <br /> <br />THEODORE M. ZORICH <br />~RENl E, SPRONK <br /> <br />ZORICH, SPRONK & ASSOCIATES, INC. <br /> <br />CONSULTING ENGINEERS <br />IN WATER RESOURCES <br /> <br />222 GENESIS BUILDING <br />1221 SOUTH CLARKSON <br />DENVER, COLORADO B0210 <br />(303; m.oSS4 <br /> <br />Clientif365 <br /> <br />December 8, 1981 <br /> <br />~~~~~~J(W1m~ <br />J/W L;:llo 1981 <br />lI, <br />COLORADO W. <br />CONSr.RV/,\TI'Oi\J 'A TEfl <br />-" I 80ARD <br /> <br />Mr. J. William McDonald <br />Colorado Water Conservation Board <br />823 State Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br /> <br />Re: John Martin Reservoir Operating Criteria <br /> <br />Dear Mr. McDonald: <br /> <br />Subsequent to the meeting held October 30 to discuss possible <br />changes in the Operating Criteria for John Martin Reservoir, the <br />District 67 Ditches requested that we analyze the effects that <br />construction of John Martin Reservoir and adoption of the Arkansas <br />River Compact had on the amount of water historically yielded by <br />their water rights, A report which contains the results of our <br />study is enclosed. Our analyses indicate that operation of John <br />Martin Reservoir according to the terms of the Arkansas River <br />Compact has resulted in the exchange upstream of most of the <br />water stored in the conservation pool, which benefits only the <br />ditches in Water Districts 14 and 17. The only benefit received <br />by the ditches in Water District 67 has been regulation of their <br />water supply. We believe that elimination of the storage accounts <br />or reduction of the release rate into the accounts will result <br />in continued diminution of the amount of water available to the <br />District 67 ditches. <br /> <br />Please call if you have any questions or wi.sh additional <br />information. <br /> <br />Sincerely, <br /> <br />ZORICH, SPRONK & ASSOCIATES, INC. <br /> <br />b~r~ <br /> <br />Bruce E. Kroeker <br /> <br />A? /n/ ~A/:{ <br />Theodore M. ~i;h: ~~:~., P.E. <br /> <br />BEK/TMZ/rb <br />Encl. <br />ce: Mr. Robert W. Jesse (w/encl.) <br />Mr, William Howland (w/enel.) <br />Mr. Thomas W. Perry (w/enel.) <br />Mr. Leo Idler (w/o encl.) <br />