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<br />.000921 <br />November 4, 1996 <br /> <br />Page 2 <br /> <br />cfs to 12 cfs, where 12 cfs is lhe maximum demand for the year. This special case is <br />described below in greater detail. <br /> <br />The Phase II .if a and .dds files were manually edited as follow: <br /> <br />. File yampa.ifa: Remove all demand data for inslream flow structures named *.01, *.02, elc., <br />and change reference to structures *01 to whole numbers. Change the demand paltern for <br />Bear River (582404) 10 reflect a 5 cfs winter demand and a 12 cfs summer demand 10 be <br />consistenl wilh Phase II model. <br /> <br />. File yampa.dds: For each station, check return node field for nodes that are no longer valid. <br />Relurn nodes of the following diversions were changed as a result. In all cases, the relurns <br />were 10 one point which had a 100% return. Return flow timing was not changed. <br /> <br />Diversion # <br />440607 <br />440645 <br />440652 <br />440661 <br />440765 <br />580539 <br />580556 <br />580582 <br />580583 <br />580589 <br />580591 <br />580599 <br />580604 <br />580633 <br />580640 <br />580801 <br />580813 <br />580847 <br />580866 <br />580895 <br />580917 <br />581021 <br />584684 <br /> <br />Name Old Return Node <br />East Egry Mesa Ditch 449999.01 <br />Wadd Harper No 2 D 449998.04 <br />Highland Ditch 449998.01 <br />South J P Morin Ditch 449998.01 <br />Soulh Side Ditch 449998.03 <br />Big Mesa Ditch 582202.02 <br />Brinker Creek Ditch 582409.01 <br />Charles Leighlon Ditch 582202.06 <br />Charles H Kemmer Ditch 581355.20 <br />Coal Creek Ditch 582214.01 <br />Collins Ditch 582519.02 <br />Cullen Ditch No 2 581355.13 <br />Day Ditch 581355.10 <br />Ferguson Ditch 581355.21 <br />Firsl Chance Ditch 582206.01 <br />Hunt Creek Ditch 582519.04 <br />Palisade Dilch 582519.03 <br />Sand Creek Dilch 581355.05 <br />Snow Bank Ditch 582519.01 <br />Sunnyside Dilch 1 582219.01 <br />Vail Savage Ditch 581355.10 <br />Lee Irrigalion Ditch 581355.15 <br />Slillwater Colo 582306.01 <br /> <br />New Return Node <br />449999 <br />449998.Dwn <br />449998 <br />449998 <br />440790 <br />580738 <br />582409 <br />580500 <br />580633 <br />582214 <br />580813 <br />581021 <br />580568 <br />570584 <br />582206 <br />582519.Dwn <br />582519.Dwn <br />580577 <br />582519 <br />582219 <br />580568 <br />580626 <br />582306 <br /> <br />Using the updated files described above StateMod (version 7.04) was run for the hisloric and ca1cu1aled <br />scenarios of Phase II. <br /> <br />Special Case: In the Phase II model, one in stream flow structure (582404) was used to cover the Bear <br />River MSF from Slillwaler Reservoir to Phillips Creek. Three nodes were used in the model wilhin the <br />reach. According 10 lhe waler rights tabulation, this stretch of the river is governed by lwo instream flow <br />rights, one for 5 cfs from Stillwater Reservoir to Yamcolo Reservoir, and a second for 12 cfs from <br />