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13 <br /> Exhibit 1 <br /> 4. Category IV: twenty-five feet. <br /> 37.140 Standard stream buffer requirements for Category 1 streams (pages 704-282, <br /> 283) <br /> A. Standard Buffer Width. It is the goal of this chapter to preserve streams and their <br /> buffers in a natural condition to the maximum extent possible. Buffers shall be <br /> measured from the top of the upper bank or, if that cannot be determined, from the <br /> ordinary high-water mark as surveyed in the field. In braided channels and alluvial <br /> fans, the top of the bank or ordinary high-water mark shall be determined so as to <br /> include the entire stream feature. Except for category IV streams, if the designated <br /> buffer contains significant vegetation with drip lines extending beyond the edge of <br /> the buffer, the buffer shall be extended to five feet beyond the outside edge of the <br /> drip line. For purposes of this section, significant vegetation means a healthy <br /> evergreen tree, ten inches in diameter or greater, measured 4.5 feet above existing <br /> grade. Except as otherwise provided by Section 37.050 of this chapter, the <br /> following minimum buffers of native vegetation shall apply to streams based upon <br /> category: <br /> 1. Category I Streams. Category I streams shall have a minimum buffer of one <br /> hundred feet on each side of the stream, except that properties under the <br /> jurisdiction of the shoreline master program which abut category I streams <br /> may have a minimum buffer of less than one hundred feet when shoreline <br /> public access improvements may otherwise be permitted or required during <br /> the shoreline permit review process; or when a water-dependent or water- <br /> related use which requires a lesser buffer standard is approved during the <br /> shoreline permit review process. <br /> C. Standard Buffer Width Increase. The city shall require increased buffer widths as <br /> necessary to protect streams when the stream is particularly sensitive to disturbance, <br /> or the development poses unusual impacts and the increased buffer width is <br /> necessary to protect the environmentally sensitive areas described in this <br /> subsection. Circumstances which may require buffers beyond minimum <br /> requirements include, but are not limited to, the following: <br /> 1. The stream reach affected by the development proposal serves as critical fish <br /> habitat for spawning or rearing as determined by the city using information <br /> from resource agencies including, but not limited to, the Washington State <br /> Departments of Fisheries or Wildlife, U.S. Fish and Wildlife Service, and <br /> native tribes; <br /> 2. The stream or adjacent riparian corridor is used by species listed by the federal <br /> government or the state as endangered, threatened, rare, sensitive, or <br /> monitored, or provides critical or outstanding actual or potential habitat for <br /> those species, or has unusual nesting or resting sites such as heron rookeries or <br /> raptor nesting or lookout trees; <br /> 3. The land adjacent to the stream and its associated buffer is classified as a <br /> geologically hazardous or unstable area; <br /> I58 <br /> Section 3 General Goals, Objectives,Policies and Regulations Page 3-88 <br />