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Exhibit B <br />ORDINANCE Exhibit A - Page 52 of 66 <br />a. Waters within lakes, ponds, or impoundments having a surface of 0.5 acre or greater <br />at seasonal low water; <br />b. Stream segments having a defined channel 20 feet or greater within the bankfull <br />width and having a gradient of less than four percent; <br />c. Waters which are off-channel habitat. These are areas important for rearing and <br />survival of fish and include riverine ponds, wall-based channels, and stream associated <br />wetlands. The area must be connected to Type F or Type S Water and accessible to fish <br />during some portion of the year. <br />i. For channelized streams, the edge of off-channel habitat is determined based <br />on the outer edge of inundation of the stream at the bankfull elevation flow. <br />ii. For nonchannelized streams, including stream associated wetlands, off- <br />channel habitat is the outer edge of the area periodically inundated at the <br />ordinary high water line. <br />d. Waters used by fish. Where fish use has not been determined: <br />i. Waters having any of the following characteristics are presumed to have fish <br />use: <br />A. Stream segments having a defined channel of two feet or greater <br />within the bankfull width and having a gradient of 16 percent or less; <br />B. Stream segments having a defined channel of two feet or greater <br />within the bankfull width and having a gradient greater than 16 percent <br />and less than or equal to 20 percent, and having greater than 50 acres in <br />contributing basin size, based on hydrographic boundaries; <br />C. Ponds or impoundments having a surface area of less than one acre <br />at seasonal low water and having an outlet to a fish stream; <br />D. Ponds or impoundments having a surface area of 0.5 acre or greater <br />at seasonal low water; <br />E. Waters within the anadromous fish floor, see WAC 222-16-0301. <br />ii. The planning director may waive or modify the characteristics in (d)(i) of this <br />subsection based on a report prepared by a qualified professional where: <br />A. Waters have confirmed, long term, naturally occurring water quality <br />parameters incapable of supporting fish; <br />B. Snowmelt streams with short flow cycles that do not support <br />successful life history phases of fish. These streams typically have no <br />flow in the winter months and discontinue flow by June 1st; or