17.130.050 Classification of streams – SMP.
The stream typing system as provided in WAC 222-16-030(k), as hereafter amended, shall be utilized for stream classification. The Department of Natural Resources stream classification maps shall be used to determine classification, unless the critical areas report provides a basis for reclassification. The director may consult with the Department of Natural Resources and Washington Department of Fish and Wildlife to gain concurrence on any change in classification.
(1) “Type S water” means all waters, within their bankfull width, as inventoried as “shorelines of the state” under Chapter 90.58 RCW and the rules promulgated pursuant to Chapter 90.58 RCW including periodically inundated areas of their associated wetlands.
(2) “Type F water” means segments of natural waters other than Type S waters, which are within the bankfull widths of defined channels and periodically inundated areas of their associated wetlands, or within lakes, ponds, or impoundments having a surface area of one-half acre or greater at seasonal low water and which in any case contain fish-habitat or are described by one of the following four categories:
(a) Waters, which are diverted for domestic use by more than 10 residential or camping units or by a public accommodation facility licensed to serve more than 10 persons, where such diversion is determined by the department to be a valid appropriation of water and the only practical water source for such users. Such waters shall be considered to be Type F water upstream from the point of such diversion for 1,500 feet or until the drainage area is reduced by 50 percent, whichever is less;
(b) Waters, which are diverted for use by federal, state, tribal or private fish hatcheries. Such waters shall be considered Type F water upstream from the point of diversion for 1,500 feet, including tributaries if highly significant for protection of downstream water quality. The department may allow additional harvest beyond the requirements of Type F water designation provided the department determines after a landowner-requested on-site assessment by the Department of Fish and Wildlife, Department of Ecology, the affected tribes and interested parties that:
(i) The management practices proposed by the landowner will adequately protect water quality for the fish hatchery; and
(ii) Such additional harvest meets the requirements of the water type designation that would apply in the absence of the hatchery;
(c) Waters, which are within a federal, state, local, or private campground having more than 10 camping units; provided, that the water shall not be considered to enter a campground until it reaches the boundary of the park lands available for public use and comes within 100 feet of a camping unit, trail or other park improvement;
(d) Riverine ponds, wall-based channels, and other channel features that are used by fish for off-channel habitat. These areas are critical to the maintenance of optimum survival of fish. This habitat shall be identified based on the following criteria:
(i) The site must be connected to a fish-habitat stream and accessible during some period of the year; and
(ii) The off-channel water must be accessible to fish.
(3) “Type Np water” means all segments of natural waters within the bankfull width of defined channels that are perennial nonfish-habitat streams. Perennial streams are flowing waters that do not go dry any time of a year of normal rainfall and include the intermittent dry portions of the perennial channel below the uppermost point of perennial flow.
(4) “Type Ns water” means all segments of natural waters within the bankfull width of the defined channels that are not Type S, F, or Np waters. These are seasonal, nonfish-habitat streams in which surface flow is not present for at least some portion of a year of normal rainfall and are not located downstream from any stream reach that is a Type Np water. Ns waters must be physically connected by an above-ground channel system to Type S, F, or Np waters. (Ord. 1373 § 42, 2014; Ord. 1164 § 4, 2004).