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3. Cap cumulative diversions from all West Slope river basins to the East Slope at a <br />level or percent of current diversions. <br />4. Support the Seven States Agreement <br />5. Inter- and intra-state water sharing agreements that protect agriculture <br />g. Rachel Richards suggested that the vision statement should include a vision of what <br />Colorado should look like for our grandchildren. She reconullended that the state consider <br />measures such as requiring that all new approved water projects reserve water for instream <br />flows. She also expressed concern that increased agricultural efficiency could lead to less <br />groundwater and cause wells to dry up in rural areas. <br />13. Grand County Stream Flow Management Plan. Grand County consultants Peggy Bailey, <br />P.E., and Thomas A. Wesche, PhD, reported on Phase II of the Grand County Stream Flow <br />Management Plan. This plan, which has been funded in part with grants provided by the CWCB, <br />has 3 phases: <br />Phase I Review existing literature and data on Grand County stream flows. <br />Cost: $59,354 <br />Phase II Conduct PHABSIM stream habitat studies at selected sites <br /> Cost: $377,495 <br />Phase III Compare optimal and critical flows determined in PHABSIM <br /> studies against projected river flows if all conditional water rights <br /> are developed. <br />a. Peggy Bailey, P.E., Tetra Tech, Senior Hydraulic Engineer, P.O Box 1659, Breclcinridge, CO <br />80424, 970-453-6397, peggw.baile~tetratech.com, www.tetratech.com. <br />b. Thomas A. Wesche, PhD, HabiTech, Inc., P.O. Box 944, Laramie, WY 82073, 307-742- <br />4902, lwesche ~,aol.com. <br />PHABSIM studies were conducted at 11 river sites selected by Grand County and the <br />consultants in an 80-mile river corridor (see the Glossary for a definition of PHABSIM). <br />PHABSIM data was already available at 6 other sites, so 17 total sites in Grand County were <br />included in the study. Ten river transects were studied at each of the ll sites at 3 different <br />times during high, medium and low flows, for 330 total measurements. The studies tools <br />place in 2007 and took about a year to complete. Below are the results of two studied sites. <br /> Summer Winter <br /> Critical Optimal Flushing Critical Optimal <br />Muddy Creek below <br />Wolford Reservoir <br />60 cfs <br />90 <br />400-600 <br />30 <br />60 <br />Colorado River below <br />Gore Canyon <br />600 <br />1,000 <br />1,800 <br />400 <br />600 <br />d. Grand County is undertaking a Wild and Scenic River study. Phase III of the Stream Flow <br />Management Plan will consider: <br />1. Identify priority river reaches. <br />2. Conduct a time series analysis of current and fiiture water management actions. <br />I:AInterbasin Compact Cominittee~Basin Roundtables\Colorado~Minutes~Approved Munrtes Apri12008 CBRT.doc 3 g~2~ <br />