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Agenda Item 8a(3) Case No. 5-96CW370; Oasis Ranches . Case Summary The Board ratified the statement of opposition filed in this case at its March 20, 1997, meeting. This is an application for surface water rights, change of water rights, and approval of plan for augmentation on the Blue River near Silverthorne in Sununit County (see attached map). Applicant seeks downstream, alternate points of diversion at the Mathis Wells 1 through 6 on the Blue River for the senior irrigation rights decreed to the Roberts and Rouse Ditches on Boulder Creek. Applicant also seeks a plan for augmentation to replace out-of-priority depletions from in-house and stock watering uses i1t the Mathis Wells with releases of water stored in Green Mountain Reservoir. The Board holds the following instream flow decrees which could be injured by this application: Case No. Stream Amount Aooroo. Date 5-87CW297 5-87CW298 Blue River Blue River 125/90/70/78/90 125/90/85/90 10/2/87 1 0/2/87 Stipulation Applicant has agreed to the following terms and conditions which will provide full protection for . the Board's instream flow water rights on the Blue River. . Applicant agrees to limit cumulative diversions of its 3.5 cfs interest in the Rouse Ditch and its 1.302 cfs interest in the Roberts Irrigating Ditch, at the historic points of diversion and at the Mathis Well 1-7 alternate points of diversion, to irrigation uses and the amount of water physically available and in priority at the original points of diversion. . Diversions for in-house and stock watering purposes, which are out-of-priority vis-a-vis the Board's rights, may not be adequately augmented by the onsite ponds and augmentation water in Green Mountain Reservoir as contemplated by the Applicant's augmentation plan. Therefore, Applicant agrees to curtail out-of-priority diversions under the proposed plan for Augmentation at such times as the flows in the Blue River are at or below the decreed instream flow amounts. . Pursuant to C.R.S. S 37-92-502(5), Applicant shall install, maintain and monitor at locations determined by the Division Engineer, and at Applicant's expense, such measuring devices deemed necessary by the Division Engineer to administer the terms of this decree. The CWCB, the State and Division Engineer and their agents shall have access to such measuring devices at reasonable times in order to make readings therefrom. L:\BOARDMEM\Jan 99\8a(3).doc .