Ordinance 2909-06 - Laserfiche WebLink

b. It is demonstrated to the satisfaction of the city that the stream segment in question has confirmed, long-term, naturally -occurring water quality parameters incapable of supporting salmonid fish; c. Sufficient information about a geomorphic region is available to support a departure from the characteristics described above for the presumption of salmonid fish use, as determined in consultation with the Washington Department of Fish and Wildlife, the Department of Ecology, affected tribes, or others; d. The Washington Department of Fish and Wildlife has issued a hydraulic project approval pursuant to RCW 77.55.100, which includes a determination that the stream segment in question is not used by salmonid fish; e. No salmonid fish are discovered in the stream segment in question during a stream survey conducted according to the protocol provided in the Washington Forest Practices Board Manual, Section 13, Guidelines for Determining Fish Use for the Purpose of Typing waters under WAC 222-16-031; provided, that no unnatural fish passage barriers have been present downstream of said stream segment over a period of at least two years. f. The following stream segments shall not be considered Type F streams: i. Merrill and Ring Creek south of Merrill Creek Parkway ii. Edgewater Creek iii. Narbeck Creek iv. Forgotten Creek 3. Type Np Stream. Those stream segments within the ordinary high water mark, including the periodically inundated areas of their associated wetlands, that are perennial and are not Type S or Type F streams. However, for the purpose of classification, Type Np streams include intermittent dry portions of the channel below the uppermost point of perennial flow. If the uppermost point of perennial flow cannot be identified with simple, nontechnical observations (see Washington Forest Practices Board Manual, Section 23), then said point shall be determined by a qualified professional selected or approved by the city. 4. Type Ns Stream. Those stream segments within the ordinary high water mark, including the periodically inundated areas of their associated wetlands, that are not Type S, Type F, or Type Np streams. These include seasonal streams in which surface flow is not present for at least some portion of a year of normal rainfall that are not located downstream from any Type Np stream segment. B. Definitions. For the purposes of this chapter: 1. "Channel gradient" refers to a measurement over a representative section of at least 500 linear feet, where available, with at least 10 evenly spaced measurement points along the normal stream channel, but excluding unusually wide areas of negligible gradient such as marshy or swampy areas, beaver ponds, and impoundments. Channel gradient may be determined utilizing stream profiles plotted from United States Geological Survey topographic maps (see Washington Forest Practices Board Manual, Section 23) or a more detailed survey specific to the project site and/or area. K: