2021-04-12-minutes-public-works-study-session

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Asp ect '._CONSULTING for Net Ecological Benefit NEB). Implementation of the Streamflow Restoration Addendum will also include additional projects to meet the Planning Unit's stated goals of preserving local agriculture by developing a complimentary water bank to protect water rights from relinquishment and to facilitate reappropriation to other out -of -stream uses. Bourne Water Bank - Private Client I Teanaway River Basin, WA Tyson successfully negotiated a water right division amongst several different landowners with two different priority date water rights. Following division, a portion of the senior claim was transferred to instream flow and mitigation for out -of -priority uses using site-specific crop irrigation requirements (CIRs), providing suitable mitigation for the fish -critical Teanaway River Basin in Upper Kittitas County. A Trust Water Right Agreement was successfully negotiated to provide backing with Ecology -owned 1.893 water during periods of low -flows in exchange for a diversion forbearance when Teanaway River flows were below 11 efs. The agreement allowed for reliable mitigation from a private water bank in the upper reaches of Teanaway River Basin, previously designed as a "red zone" areas in Upper Kittitas County. Taneum Creek - Bruton Ditch Water Rights Transfer I Lower Kittitas County, WA Tyson completed the water right investlgation(s), including extent and validity analysis, for three water right applications for the Bruton-Kittitas Reclamation District (KRD) Water Exchange Project. The applications requested a water right transfer into the State of Washington's TWRP to benefit instream flows in Taneum Creek and to mitigate for out of priority water use in the Yakima Basin. The primary goal of the project is to provide the Bruton Users with an alternative source of water and to enable fish passage improvements in Taneum Creek. Fish passage improvements include both the physical removal of Bruton Dara and a net increase in instream flows. Cabin Owner Mitigation Water Bank I Kittitas and Yakima Counties, WA Consumptive water purchased from Taneum Creek was placed into the TWRP and made available to junior surface water users In the Yakima River basin. Purchase of mitigation would prevent regulation of water use during drought years. Also, in certain instances, the mitigation water is used to issue new mitigated surface water rights to recreational properties, or in the case of upper Kittitas County, WBN Determinations authorizing the drilling and use of a permit -exempt groundwater well. Tyson served as lead technical and permitting consultant to Ecology, coordinating public outreach and consultation with basin stakeholders, evaluating claim suitability, estimates of total and consumptive water use, and preparing permitting documents. Mitigation Suitability Analysis I Kittitas and Yakima Countles, WA Permitting of a new mitigated groundwater supply requires a detailed hydrogeologic evaluation to determine the mitigation suitability of a water right, Including an evaluation of local and regional hydrogeologic conditions to determine whether water is physically or legally available, and whether the new appropriation would results in local impairment — either to instream flows or nearby groundwater or surface water rights. Tyson was hydrogeologist on dozens of mitigation suitability analysis in the Yakima River Basin. The analysis not only includes the technical work, but also presentation of findings and results to local stakeholders, including the Ecology, and member of the Water Transfer Working Group (WTWG). Pautzke Bait Company, City of Mabton Water Right Transfer I Mabton, WA The City of Mabton purchased a pre -1905 surface water right from Reecer Creek outside of Ellensburg. The water right was purchased to help meet Mabton's current water supply shortfall and provide for significant long-term economic growth and water supply reliability, especially in time of drought and/or groundwater regulation. To complete the transfer, Tyson facilitated the water right change to mitigation and instream flow, then received a new water budget neutral water right using consumptive use mitigation credits from the TWRP. The new water budget water right would authorize Mabton to withdraw groundwater from two or more proposed wells completed in sediment that are in high continuity with the Yakima River for municipal water supply within Mabton's Urban Growth Area (UGA). Carlson I Resumle Page 1 2