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Exhibit B <br />ORDINANCE Exhibit A - Page 61 of 66 <br />3. To maintain the integrity of the buffer, all principal buildings, as well as other structures and <br />improvements shall maintain a setback from the buffer as specified in EMC 19.37.140. <br />4. The buffer widths required by this chapter presume the existence of a relatively intact native <br />vegetated community including native tree cover, shrub understory and ground cover. If the <br />existing stream buffer is unvegetated, sparsely vegetated, or vegetated with invasive species, <br />the standard buffer width shall be restored or increased as required by this section unless <br />otherwise provided. <br /> 5. Except as otherwise provided by EMC 19.37.050, the following buffers of native vegetation <br />shall apply to streams based upon stream classification: <br />Table 37.5: Stream Buffers <br />Stream Classification <br />(Type) <br />Standard Buffer Increased Buffer <br /> Intact Native Vegetation Unvegetated; Sparsely Vegetated; or <br />Vegetated with Invasive Species <br />Type S 100 feet 150 feet <br />Type F 100 feet 150 feet <br />Type Np 100 feet 125 feet <br />Type Ns 100 feet 125 feet <br />B. Stream Buffer Width Increase. The city shall require increased buffer widths as necessary to protect <br />streams when the stream is particularly sensitive to disturbance, or the development poses unusual <br />impacts and the increased buffer width is necessary to protect the critical areas described in this <br />subsection. Circumstances which may require buffers beyond minimum requirements include, but are <br />not limited to, the following: <br />1. When the minimum buffer for a stream extends into an area with a slope of greater than <br />twenty-five percent, the buffer shall be the greater of: <br />a. The minimum buffer for that particular stream; or <br />b. Twenty-five feet beyond the point where the slope becomes twenty-five percent or <br />less; <br />2. The stream reach affected by the development proposal serves as critical habitat for listed <br />species as determined by the city using information from resource agencies including, but not <br />limited to, the Washington State Department of Fish and Wildlife, U.S. Fish and Wildlife Service, <br />and recognized tribal nations; <br />3. The stream or adjacent riparian corridor is used by species listed by the federal government <br />or the state as endangered, threatened, rare, sensitive, or monitored, or provides critical or <br />outstanding actual or potential habitat for those species, or has unusual nesting or resting sites <br />such as heron nesting colonies or raptor nesting or lookout trees; <br />4. The land adjacent to the stream and its associated buffer is classified as a geologically <br />hazardous or unstable area;