2016-02-17_HYDROLOGY - M1996052 - Laserfiche WebLink

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Mr. Rick Parsons, P.E. February 10, 2016 L.G. Everist Combined SWSP Page 8 of 14 L.G. Everist has fully reusable supplies stored in the Rinn Valley Phase 3 Reservoir and Star Water Resource Reservoir. The Rinn Valley Phase 3 Reservoir exercised its first fill and most of its refill water rights decreed in case no. 2005CW315 during the 2015 water year. The liner for the Star Water Resource Reservoir was approved on December 16, 2014 and water was stored in priority with the water commissioner's approval during April 2015. As of November 1, 2015 these was approximately 357 acre-feet of water stored in the Rinn Valley Phase 3 Reservoir and 845 acre-feet stored in the Star Water Resource Reservoir. This water is available among other uses for augmentation purposes in this SWSP. The amounts of storage water in the Rinn Valley Phase 3 Reservoir and Star Water Resource Reservoir projected for use for replacement purposes during the period of this SWSP is presented in Table 5 below (taken from the SWSP report): Table 5 L.G. Everist Reusable Storage Supplies Summary Rinn Valley Phase 3 Star Water Resource Total 2016 As of Nov 2015 357 acre-feet 845 acre-Feet 1.202 acre-feet Used in 2016 362 acre-feet* 391 acre-feet 753 acre-feet 2017 2017 fill 296 acre-feet 260 acre-feet 556 acre-feet Used in 2017 7 acre-feet 715 acre-feet 722 acre-feet Remaining" 2016 0 acre-feet* 460 acre-feet 460 acre-feet _017 350 acre-feet 131 acre-feet 480 acre-feet *Assumes 5 acre-feet refill to meet STIH 2016 kasc drliveries(to simpliry Lxcc)algorithm) "Fortion of waicr remaining in 2016 tw:eded for 2017 deliteries This summary of use of storage includes the additional SWSP demand of 362 acre-feet of replacement water leased to the Big Thompson Investment Holdings Group during the 2016 calendar year. According to the 2016 and 2017 proposed accounting for the Saint Vrain Creek Pits (Table 11) no water from Rinn Valley Phase 3 Reservoir is proposed to be used in this SWSP since the entire amount in storage and the forecasted refill is leased to Big Thompson Investment Holdings Group ("BTIH") for their SWSPs (pending case nos. 2012CW179 and 2014CW3046). Although, only releases of water in storage from Star Water Resource Reservoir was presented in Table 11, the source that will ultimately be used for both BTIH lease and Everist's SWSP is contingent on the location of the call and location of uses. Nevertheless sufficient replacement water is available is storage in the Rinn Valley Phase 3 Reservoir and Star Water Reservoir to satisfy both the lease and the replacement requirement under this SWSP. Releases of replacement water will be made at or above the point of the downstream calling right. Releases from the Star Water Resource Reservoir (approximately 10 miles upstream of the South Platte River) will be delivered into the Cache La Poudre River in the SW1/4 of the SE1/4 of Section 26, Township 6 North, Range 66 West, of the 6th P.M. No transit losses associated with the releases from Star Water Reservoir were assessed under this SWSP to cover the depletions on the Saint Vrain Creek since the points of depletions are upstream of the Cache La Poudre River and the South Platte River confluence. Releases from this Rinn Valley Reservoir to cover the Saint Vrain Creek Pits will account for the transit losses to Saint Vrain Creek of approximately 3.7 percent based on about 15 river miles from the reservoir releases to Saint Vrain River down to the confluence with the South Platte River times 0.50 percent per mile summer transit loss and 0.25 percent winter transit loss per mile. The transit loss percentages are subject to change depending upon current conditions. If transit losses change they will be communicated by the Division Engineer via email to the Division One Call List. The applicant shall obtain prior permission from the District 2, 3 and 5 Water Commissioners when making releases from these reservoirs. Credit will not be given to any releases not measured and recorded to the satisfaction of the District 2, 3 or District 5 Water Commissioners or Division Engineer.