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Section 21.Section 18 of Ordinance 2909-06, as amended, (Zoning Code,Critical Areas, EMC <br /> 19.37.180), is hereby amended as follows: <br /> 19.37.180 Stream Alteration Thresholds and Compensation "voi ing stream impacts. <br /> A. Stream Preservation/Alteration Goal and Priorities. It is the short term goal of this section that <br /> there be no net lo:,s of the functions of all streams in the city,and the long term goal is to improve the <br /> quality and functions of the stream systems in Everett.To realize stream preservation and protection <br /> goals,the city will use the following methods of stream impact mitigation in order of preference: <br /> 1. Avoid impact altogether by not taking a certain action or parts of an action; <br /> 2. Minimize impact by limiting the degree or magnitude of the action and its implementation by using <br /> appropriate technology,or by taking affirmative steps to avoid or reduce impact; <br /> 3. Rectify the impact by repairing, rehabilitating or restoring the affected sensitive areas; <br /> '1. Reduce or eliminate the impact over time by prevention and maintenance operations during the life <br /> of the actions; <br /> 5. Compensate for the impact by replacing,enhancing, or providing substitute streams and <br /> envicervniefits <br /> 6. Monitor the impact and take appropriate corrective measures to achieve performance objectives. <br /> BA. Stream Preservation/Alteration Thresholds. <br /> 1. Type S Streams.All Type S streams shall be regulated by the city of Everett shoreline master <br /> program. <br /> 2. Type F Streams. All Type F streams shall be preserved.The city may only allow alteration of Type <br /> F streams under the following circumstances: <br /> a. Where alteration is allowed pursuant to Section 19.37.050 of this chapter; <br /> b. Stream Crossings. Stream crossings are regulated by the Washington State Department of <br /> Fish and Wildlife (WDFW).Stream crossings shall only be permitted as provided by Section <br /> 19.37.050 of this chapter or to provide access to a lot or a substantial portion of a lot when <br /> no other feasible means of access exists. Use of common access points shall be required for <br /> abutting lots which have no other feasible means of access.Alteration for the purpose of <br /> providing access shall be limited to the minimum number of stream crossings required to <br /> permit reasonable access. Bridging may be required when necessary to protect significant <br /> stream functions. If a culvert is allowed,the design and installation must be approved by <br /> WDFW; <br /> c. When the proposal results in significant restoration of functions to the stream segment and <br /> the alteration is approved by the Washington State Department of Fish and Wildlife. <br /> 3. Type Np and Type Ns Streams. <br /> a. Except as provided in this subsection, no alteration of a Type Np or Ns stream shall be <br /> allowed except as otherwise provided by Section 19.37.050 of this chapter; or <br /> b. The planning director may, using the review process described in EMC Title 15, Local Project <br /> Review Procedures, allow alteration or relocation of Type Np and Ns streams under the <br /> following conditions: <br /> i. Stream and buffer functions in the relocated/altered stream section must be equal to or <br /> greater than the functions provided by the stream and buffer prior to <br /> relocation/alteration; <br /> ii. The equivalent base flood storage volume shall be maintained; <br /> iii. There shall be no impact to local ground water; <br /> iv. There shall be no increase in water velocity; <br /> v. There is no interbasin transfer of water; <br /> EMC Title 19.37 (Critical Areas) Page 49 <br />