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Kittitas County,WA <br /> § 17A.06.100 KITTITAS COUNTY CODE § 17A.06.100 <br /> 3. Geotechnical report contents. When required by this Title,the Geotechnical Report shall include the <br /> general critical areas report requirements of KCC § 17A.01.080 in addition to the following: <br /> a. A detailed description of the geology and soil conditions of the site; <br /> b. Evaluation of the geologic conditions giving rise to the geologic hazard; <br /> C. An evaluation of the safety of the proposed project; <br /> d. Conclusion and recommendations regarding the effect of geologic conditions on the proposed <br /> development; <br /> e. Conclusions and recommendations on the suitability of the site to be developed; <br /> f. A statement regarding the risk of damage from the project,both on-and off-site; and whether or <br /> not the project will materially increase the risk of occurrence of the hazard; <br /> g. Recommendations concerning drainage practices,vegetation retention and other mitigation and <br /> monitoring measures which may be needed to ensure slope stability; <br /> h. Recommended erosion and sediment control measures; <br /> i. A bibliography of scientific citations; <br /> j. Any other specific measures which must be incorporated into the design and operational plan of <br /> the project to eliminate or reduce the risk of damage due to the hazard. This shall include a <br /> recommendation on the required buffer or setback distance that must be maintained between the <br /> proposed development and the hazard to ensure the safety of the development;and The signature <br /> and stamp of the engineer or engineering geologist who prepared the Geotechnical Report. <br /> 4. Channel migration zones studies contents. When required by this Chapter, Channel Migration Zone <br /> Studies shall include the general critical areas report requirements of KCC § 17A.01.080, and shall <br /> demonstrate the following: <br /> a. The parcel on which the development is proposed is effectively protected (disconnected) from <br /> channel movement due to the existence of permanent levees that are actively maintained by <br /> public agencies or infrastructure such as roads and bridges constructed and maintained by public <br /> agencies(not all roads and levees will be considered disconnection points): or <br /> b. The proposed development site has minimal risk of channel migration during the next one <br /> hundred(100)years as indicated by the existing channel type,land cover(and low likelihood of <br /> future alterations in land cover),presence of adjacent toe slope landslide hazard areas, surficial <br /> geology,low soil erosion potential,lack of evidence of likely avulsion pathways(including areas <br /> upstream of, but proximate to, the site), and/or low inundation frequency(ies). The assessment <br /> shall include a review of available data regarding historical channel locations at the site; <br /> identification of the site within a broader geomorphic reach of the river system and the general <br /> characteristics of that reach; description of existing channel type,existing channel alteration and <br /> likelihood of future alterations with changes in land cover; surficial geology, soils and erosion <br /> potential; and geotechnical setbacks relating to erosion at the toe of adjacent slope(s). The <br /> approach to assessing location shall be generally equivalent to the methods detailed in "A <br /> framework for Delineating Channel Migration Zones" (Ecology Publication # 03-06-027), or <br /> similar method approved or sanctioned by Ecology. <br /> Downloaded from https:Hecode360.com/KI6857 on 2025-05-15 <br />