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<br />DRAFf <br />9/22/95 <br /> <br />COLORADO WATER CONSERVATION BOARD <br />RECOVERY INSTREAM FLOW APPROPRIATION OPTIONS <br /> <br />Option I - Yarnpa River Instrearn Flow Appropriation <br /> <br />The following is one of several options which have been developed through extensive <br />consultations over the last year among representatives of the CWCB, State Engineer and Division <br />Engineers, Attorney General, Colorado River Water Conservation District, Colorado Water <br />Congress, U.S. Fish and Wildlife Service, and many other water interests for consideration by the <br />CWCB in late 1995 as a part of its efforts appropriate endangered fish recovery instream flows in <br />the Yampa River. <br /> <br />Concept <br /> <br />An instream flow right similar to the FWS flow recommendation is appropriated as <br />follows: <br /> <br />Runoff Months: 10% Exceedance; based on 1970-1992 adjusted flows (CWCB <br />Study) <br />Non Runoff Months: 20% Exceedance; based on 1950-1982 virgin flows (FWS Study) <br /> <br />A first development allowance (Carve Out I), distributed on a monthly basis, is remains <br />available for water rights junior to the ISF appropriation and is not part of the <br />appropriation. <br /> <br />The junior water rights within the first development allowance will not be called out by the <br />instream flow right until the develop allowance (Carve Out I) is used up. <br /> <br />A second development allowance (Carve Out II) is provided for development in excess of <br />Carve Out 1. <br /> <br />When the first development allowance (Carve Out I) is used up on either a montWy or <br />annual basis, the Board may modify the second development allowance (Carve Out II) <br />from in stream uses to consumptive uses. <br /> <br />The ISF right consists of flow in excess of the first development allowance (Carve Out I), <br /> <br />Option I - I <br />