ResolutionAuthorizingChairSignatureJacobsTO3Amendment1

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♦ The Ecology 401 review for both Story and Lick Creek will result in a letter of verification, and no individual certification will be required. If a 401 review results in the need for an individual permit, the scope of work will require an amendment. ♦ Ecology 402 (NPDES) permit will be required for Lick Creek site. ♦ Local agency permits (Critical Areas Report and Shoreline Development Permit) are exempted because the project will qualify as a Fish Habitat Enhancement Project. The COUNTY will complete the local agency exemption process. ♦ Kittitas County Planning staff will prepare, or assist in the preparation of, permit application packages and required documentation. • HYDRAULICS ♦ Story Creek • Creek will stay in its current alignment and no investigation will be performed for potential effects to upstream or downstream properties as the creek will be restored to its natural drainage path. • The proposed culvert will meet County Floodplain Code and therefore a no -rise analysis is not required. • Hydraulic modeling will be performed with a ID HEC -RAS model. ♦ Lick Creek • County will provide combined LiDAR, topographic and bathymetric surface (1 foot contours with point and breakline data) with extents discussed necessary to perform hydraulic modeling. • The hydraulic analysis will include information to support the design of the proposed Teanaway Road structure and the re -aligned channel for Lick Creek. • Hydrology for the Teanaway River will rely on the Effective FIS for determining flows necessary for the hydraulic analysis. • KCPW will request the Effective Flood Insurance Study (FIS) files and acquire the Effective hydraulic model. • The geomorphic assessment for the Teanaway River will use available aerials and existing reports to understand baseline channel migration. The hydraulic model results will be assessed to determine potential for increased flows to have significant changes to channel migration trends. A quantitative analysis will not be performed. • The creek design will re -align Lick Creek through the DNR property and will have similar geomorphic features (e.g. creek substrate, channel slope, channel width, etc) necessary to promote natural stream processes. • A CLOMR or LOMR will not be performed for this project. If after this analysis it is determined a CLOMR/LOMR is necessary, it will be handled in a future amendment. • Hydrology for Lick Creek will rely on the 2016 USGS Regression Equations. • Sediment samples in the Teanaway River will be necessary for the rapid geomorphic assessment. Bed load transport is assumed to be a reasonable proxy Scope of Service—Teanaway Hyd Imp_Amend 01_2018-04-19 Page 16 of 19