Description: The bull trout habitat overlay means "those portions of Eastern Washington streams containing bull trout habitat as identified on the department of fish and wildlife's bull trout map. See full definition in Forest Practices Rules, WAC 222-16-010 *General definitions.
Description: SOSEA (SPOTTED OWL SPECIAL EMPHASIS AREAS) means the geographic areas as mapped in Washington State's Forest Practices Rules (WAC 222-16-086). Each delimited SOSEA polygon contains the specified goal for that area to provide for demographic and/or dispersal support as necessary to complement the northern spotted owl protection strategies on federal land within or adjacent to the SOSEA.
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Description: SOSEA (SPOTTED OWL SPECIAL EMPHASIS AREAS) means the geographic areas as mapped in Washington State's Forest Practices Rules (WAC 222-16-086). Each delimited SOSEA polygon contains the specified goal for that area to provide for demographic and/or dispersal support as necessary to complement the northern spotted owl protection strategies on federal land within or adjacent to the SOSEA.
Description: The Sitka Spruce boundary layer was created to satisfy the Forest Practices Emergency Rules of March 20, 2000. The Franklin and Dyrness, 1973, "Generalized vegetation map of Oregon and Washington" (at a scale of approximately 1:2,000,000) was digitized to create the current sitka spruce zone. According to Forest Practices Rules, if the uppermost point of perennial flow cannot be identified with standard observations (see board manual, section 23), then type 4 Waters begin at a point along the channel where the contributing basin area is at least 13 acres in the Sitka Spruce Zone.
Description: This coverage divides Washington State into two sections, Eastern Washington and Western Washington, for the purpose of implementing the Forest Practices Rules. See WAC 222-16-010 *General definitions: "Eastern Washington" and "Western Washington".
Description: The Eastern Washington timber habitat types data set designates elevation ranges associated with tree species assigned for the purpose of riparian management. These Timber Habitat types and their corresponding elevation ranges are: Ponderosa pine = 0 to 2500 feet, Mixed conifer = 2501 to 5000 feet, and High elevation = above 5000 feet. See WAC Chapter 222-16-010 General Definitions: "Eastern Washington timber habitat types"
Description: This feature class was developed as a cooperative project between the Department of Natural Resources Forest Practices Division, the Department of Ecology, and the Olympic National Forest. The data set was designed as a polygon coverage, delineated on 1:250,000- scale map overlays and digitized in 1991. It was plotted and proofed, but not completed at that time. Beginning in August, 1994 the coverage STRMTEMP was edited, corrected, and proofed. The data set is now a polygon feature class and shows only Class AA, A, and B polygons. It does not address Lake Class completely (some lakes are delineated, some not); see notes below for explanation. Specific conditions of certain stream segments are also not addressed by the feature class. The WAC MUST be referred to whenever this data set is used. The 1991 MPL coverage was used in delineating the extent of AA polygons. Changes through time in Federal land boundaries may affect the classification of waters in those lands. SUMMARY OF TEMPERATURE CLASSIFICATIONS DESIGNATED IN CHAPTER 173-201A WAC WATERQUALITY STANDARDS FOR SURFACE WATERS OF THE STATE OF WASHINGTON WAC 173-201A-030 General water use and criteria classes (1) Class AA (extraordinary) Temperature shall not exceed 16.0 degrees C (freshwater) or 13.0 degrees C (marine water) due to human activities. (2) Class A (excellent) Temperature shall not exceed 18.0 degrees C (freshwater) or 16.0 degrees C (marine water) due to human activities. (3) Class B (good) Temperature shall not exceed 21.0 degrees C (freshwater) or 19.0 degrees C (marine water) due to human activities. (4) Class C (fair) Temperature shall not exceed 22.0 degrees C due to human activities. For all of the above classes, when natural conditions exceed the listed temperature, no temperature increases will be allowed which will raise the receiving water temperature by greater than 0.3 degrees C. (5) Lake Class Temperature - no measurable change from natural conditions. *** Notes regarding WAC 173-201A sections 130 and 140 - Specific classifications for fresh and marine waters: All lakes and their feeder streams are classified as Lake Class. In this data set some large lakes and their feeder streams have had polygons created around them. These are shown as Class AA. Many lakes too small to be separately delineated may be contained within Class B, A, or AA polygons. Some stream segments have special conditions applied to their temperature standards. These conditions are listed in the WAC but are not delineated in the polygon coverage. These include the Columbia River, Duwamish River, Grande Ronde River, Hoquiam River, Lake Washington Ship Canal, Mill Creek (near Walla Walla), Palouse River, Pend Oreille River, Puyallup River, Skagit River, Snake River, Spokane River, Walla Walla River, Wishkah River, Yakima River, and Tacoma city waterway in Commencement Bay. These Special temperature designations are for the stream waters in the listed segment only. Temperature standards for all waters feeding that segment are as shown in the polygon coverage. This data set is a polygon coverage, and does not contain information on all surface waters listed in the WAC. All questions pertaining to temperature classification of surface waters in Washington must be clarified by referring to the WAC.
Service Item Id: f4d555d8fe334429850755524edf0fa5
Copyright Text: Washington Department of Natural Resources, Forest Practices Division; the Department of Ecology and the Olympic National Forest.