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Chapter 19.04 EMC, Definitions Page 46 of 55 <br />The Everett Municipal Code is current through Ordinance 4031-24, passed May 22, 2024. <br />“Stream channel bottom” means the submerged portion of the stream cross-section which is <br />totally an aquatic environment. The channel bottom may be seasonally dry. <br />“Stream, Type F” means those streams defined in WAC 122-16-030, Water Typing System, as <br />Type F water. <br />“Stream, Type Np” means those streams defined in WAC 122-16-030, Water Typing System, as <br />Type Np water. <br />“Stream, Type Ns” means those streams defined in WAC 122-16-030, Water Typing System, as <br />Type Ns water. <br />“Stream, Type S” means those streams defined in WAC 122-16-030, Water Typing System, as <br />Type S water. <br />“Swamp” means an area permanently saturated or inundated by water, and occupied <br />predominantly by either a scrub-shrub or forested wetland vegetation community. <br />“Unavoidable and necessary impacts” means impacts to regulated critical areas after the <br />applicant proposing to alter a regulated critical area has demonstrated that no reasonable <br />alternative exists for the proposed project. <br />“Undevelopable area” means: <br />1. Regulated wetlands; <br />2. Geologically hazardous areas which are determined by supporting studies to be <br />unsuitable for development; <br />3. Streams; <br />4. Habitats of primary association; <br />5. Plant associations of infrequent occurrence. <br />“Undisturbed, relatively” is defined in question H2.0 of the 2014 Washington State Wetland <br />Rating System for Western Washington. <br />“Unstable soils” means soils which by their physical nature are not suitable to support buildings, <br />roads, utilities or other manmade development related improvements, or which have the <br />potential for slope failure, erosion, or subsidence. Unstable soils include, but are not limited to,