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typing system in WAC 222-16-030. For purposes of this chapter, Kittitas County adopts five <br />classification types. Types 1, 2, 3, 4 and 5 waters are adopted and are classified according to the <br />following system for the purposes of this chapter: <br />"Type 1 waters" means all waters, within their ordinary high water mark (OHWM), as inventoried as <br />"shorelines of the state" under Chapter 90.58 RCW, but not including those waters' associated <br />wetlands as defined in Chapter 90.58 RCW. <br />"Type 2 waters" means segments of natural waters not classified as Type 1 and have a high fish, <br />wildlife, or human use. <br />"Type 3 waters" means segments of natural waters which are not classified as Type 1 or 2 and have a <br />moderate to slight fish, wildlife, or human use. <br />"Type 4 waters" are segments of natural waters within Kittitas County which are not classified as Type <br />1, 2 or 3 and have a channel width of two feet or more between the ordinary high water marks.* <br />"Type 5 waters" are segments of natural waters within Kittitas County which are not classified as <br />Types 1, 2, 3 or 4 waters and have a channel width of two feet between the ordinary high water <br />marks, including streams with or without well-defined channels.* <br />*Type 4 and 5 waters are not truly waters, but are waterways which are intermittent in nature and <br />may be dry beds at any time of the year. <br />(Ord. 96-14 (part), 1996; Ord. 95-15 (part), 1995; Ord. 94-22 (part), 1994). <br />17A.02.310 Wetlands. <br />"Wetland" or "wetlands" means areas that are inundated or saturated by surface water or <br />groundwater at a frequency and duration sufficient to support, and that under normal circumstances <br />do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. <br />Wetlands generally include swamps, marshes, bogs, and similar areas. Wetlands do not include those <br />artificial wetlands intentionally created from nonwetland sites, including, but not limited to, irrigation <br />and drainage ditches, agricultural fields or areas of agricultural activities that exhibit wetland <br />characteristics due to the introduction or influence of irrigation waters to those fields, grass-lined <br />swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape <br />amenities. The introduction or influence of irrigation waters to agricultural fields or areas of <br />agricultural activities which cause those areas to exhibit wetland characteristics, even though the <br />areas were nonwetland sites prior to the introduction or influence of irrigation waters, is defined in <br />this section. However, wetlands may include those artificial wetlands intentionally created from <br />nonwetland areas created to mitigate conversion of wetlands, if permitted by the county. <br />This definition is taken from the statutory definition at RCW 36.70A.030(17). This statutory definition <br />of wetlands specifically exempts a number of intentionally created wetlands, including but not <br />limited to those related to irrigation systems. Due to the inherent design of most irrigation systems, <br />such systems are reasonably and foreseeably expected to result in some leakage or seepage. Such <br />seepage or leakage is a normal result of utilization of irrigation systems and is deemed for purposes <br />of this chapter to be an artificial wetland intentionally created from a nonwetland site, and therefore <br />such areas do not constitute wetlands.