Wash. Admin. Code § 222-30-020
(1) Preapplication consultation and harvest-related forest practices hydraulic projects.
(b) Harvest-related forest practices hydraulic projects include, but are not limited to, projects associated with:
(2) Logging system. The logging system, including forest biomass removal operations, should be appropriate for the terrain, soils, and timber type so that yarding or skidding can be economically accomplished and achieve the ecological goals of WAC 222-30-010 (2), (3) and (4) in compliance with these rules.
(f) The department shall consult with the department of fish and wildlife and affected Indian tribes about site specific impacts of forest practices on wetland-sensitive species in forested wetlands.
*(8) Wetland management zones (WMZ). These zones shall apply to Type A and B Wetlands, as indicated in (a) of this subsection, and shall be measured horizontally from the wetland edge or the point where the nonforested wetland becomes a forested wetland, as determined by the method described in the board manual section 8, and shall be of an average width as described in (a) of this subsection. These zones shall not be less than the minimum nor more than the maximum widths described in (a) of this subsection. When these zones overlap a riparian management zone the requirement which best protects public resources shall apply.
*(a) Wetland management zones (WMZ) shall have variable widths based on the size of the wetland and the wetland type, described as follows:
Wetland Management Zones
| Wetland Type | Acres ofNonforested Wetland* | MaximumWMZ Width | AverageWMZ Width | MinimumWMZ Width |
| A (including bogs) | Greater than 5 | 200 feet | 100 feet | 50 feet |
| A (including bogs) | 0.5 to 5 | 100 feet | 50 feet | 25 feet |
| A (bogs only) | 0.25 to 0.5 | 100 feet | 50 feet | 25 feet |
| B | Greater than 5 | 100 feet | 50 feet | 25 feet |
| B | 0.5 to 5 | 25 feet | ||
| B | 0.25 to 0.5 | No WMZ required | No WMZ required |
| * | For bogs, both forested and nonforested acres are included. |
(d) Partial-cutting or removal of groups of trees is acceptable within the WMZ. The maximum width of openings created by harvesting within the WMZ shall not exceed one hundred feet as measured parallel to the wetland edge. Openings within WMZs shall be no closer than two hundred feet. Landowners are encouraged to concentrate leave trees within the WMZ to the wetland edge.
*(e) Tractors, wheeled skidders, or other ground based harvesting systems shall not be used within the minimum WMZ width without written approval of the department.
*(f) When ten percent or more of a harvest unit lies within a wetland management zone and either the harvest unit is a clearcut of thirty acres or less or the harvest unit is a partial cut of eighty acres or less, leave not less than fifty percent of the trees required in (b) of this subsection.
*(9) Type A or B Wetlands. Within the boundaries of Type A or B Wetlands the following shall apply:
(10) Future productivity. Harvesting shall leave the land in a condition conducive to future timber production except:
(11) Wildlife habitat. This subsection is designed to encourage timber harvest practices that would protect wildlife habitats, provided, that such action shall not unreasonably restrict landowners action without compensation.
(b) Harvesting methods and patterns in established big game winter ranges should be designed to ensure adequate access routes and escape cover where practical.
(i) Where practical, cutting units should be designed to
conform with topographical features.
(12) Wildlife reserve tree management. In areas where leaving wildlife reserve trees under this section will not create a significant fire hazard, or significant hazard to overhead power lines and operations that are proposed in the vicinity of wildlife reserve trees will not create a significant safety or residential hazard nor conflict with achieving conformance with the limitation of or performance with the provisions of chapter 76.04 RCW (snag falling law) and chapter 49.17 RCW (safety), wildlife reserve trees will be left to protect habitat for cavity nesting wildlife in accordance with the following:
(a) For the purposes of this subsection the following defines eastern and western Washington boundaries for wildlife reserve tree management. Beginning at the International Border and Okanogan National Forest boundary at the N1/4 corner Section 6, T. 40N, R. 24E., W.M., south and west along the Pasayten Wilderness boundary to the west line of Section 30, T. 37N, R. 19E.,
Thence south on range line between R. 18E. and R. 19E., to the Lake Chelan-Sawtooth Wilderness at Section 31, T. 35N, R. 19E.,
Thence south and east along the eastern wilderness boundary of Lake Chelan-Sawtooth Wilderness to the west line of Section 18, T. 31N, R. 19E. on the north shore of Lake Chelan,
Thence south on the range line between R. 18E. and R. 19E. to the SE corner of T. 28N, R. 18E.,
Thence west on the township line between T. 27N, and T. 28N to the NW corner of T. 27N, R. 17E.,
Thence south on range line between R. 16E. and R. 17E. to the Alpine Lakes Wilderness at Section 31, T. 26N, R. 17E.,
Thence south along the eastern wilderness boundary to the west line of Section 6, T. 22N, R. 17E.,
Thence south on range line between R. 16E. and R. 17E. to the SE corner of T. 22N, R. 16E.,
Thence west along township line between T. 21N, and T. 22N to the NW corner of T. 21N, R. 15E.,
Thence south along range line between R. 14E. and R. 15E. to the SW corner of T. 20N, R. 15E.,
Thence east along township line between T. 19N, and T. 20N to the SW corner of T. 20N, R. 16E.,
Thence south along range line between R. 15E. and R. 16E. to the SW corner of T. 18N, R. 16E.,
Thence west along township line between T. 17N, and T. 18N to the SE corner of T. 18N, R. 14E.,
Thence south along range line between T. 14E. and R. 15E. to the SW corner of T. 14N, R. 15E.,
Thence south and west along Wenatchee National Forest boundary to the NW corner of T. 12N, R. 14E.,
Thence south along range line between R. 13E. and R. 14E. to the SE corner of T. 10N, R. 13E.,
Thence west along township line between T. 9N, and T. 10N to the NW corner of T. 9N, R. 12E.,
Thence south along range line between R. 11E. and R. 12E. to the SE corner of T. 8N, R. 11E.,
Thence west along township line between T. 7N, and T. 8N to the Gifford Pinchot National Forest boundary,
Thence south along forest boundary to the SE corner of Section 33, T. 7N, R. 11E.,
Thence west along township line between T. 6N, and T. 7N to the SE corner of T. 7N, R. 9E.,
Thence south along Skamania-Klickitat County line to Oregon-Washington.
(f) In order to provide for safety, landowners may remove any Type 3 or 4 wildlife reserve tree, which poses a threat to humans working, recreating, or residing within the hazard area of that tree. In order to provide for fire safety, the distribution of wildlife reserve tree retention areas, described in (e) of this subsection, may be modified as necessary based on a wildlife reserve tree management plan proposed by the landowner and approved by the department.
*(13) Channel migration zones. No harvest, construction or salvage will be permitted within the boundaries of a channel migration zone except for the construction and maintenance of road crossings in accordance with applicable rules and the creation and use of yarding corridors consistent with WAC 222-24-020(6), 222-30-060(1), and 222-30-045(2).
*(3) Landing locations. Locate landings to prevent damage to public resources. Avoid excessive excavation and filling.
*(4) Western Washington riparian management zones. (See WAC 222-30-021 and 222-30-023.)
*(5) Eastern Washington riparian management zones. (See WAC 222-30-022 and 222-30-023.)
*(6) Riparian leave tree areas. (See WAC 222-30-021, 222-30-022, and 222-30-023.)
*(7) Forested wetlands. Within the wetland, unless otherwise approved in writing by the department, harvest methods shall be limited to low impact harvest or cable systems. Where feasible, at least one end of the log shall be suspended during yarding.
[Statutory Authority: RCW 76.09.040. WSR 21-06-020, § 222-30-020, filed 2/22/21, effective 3/25/21. Statutory Authority: RCW 76.09.040(3). WSR 13-21-032, § 222-30-020, filed 10/8/13, effective 12/30/13. Statutory Authority: RCW 76.09.040. WSR 05-12-119, § 222-30-020, filed 5/31/05, effective 7/1/05. Statutory Authority: Chapter 34.05 RCW, RCW 76.09.040, [76.09.]050, [76.09.]370, 76.13.120(9). WSR 01-12-042, § 222-30-020, filed 5/30/01, effective 7/1/01. Statutory Authority: RCW 76.09.040 and chapter 34.05 RCW. WSR 97-24-091, § 222-30-020, filed 12/3/97, effective 1/3/98; WSR 97-15-105, § 222-30-020, filed 7/21/97, effective 8/21/97; WSR 94-17-033, § 222-30-020, filed 8/10/94, effective 8/13/94; WSR 93-12-001, § 222-30-020, filed 5/19/93, effective 6/19/93. Statutory Authority: RCW 76.09.060, 76.09.040 and chapter 34.05 RCW. WSR 92-23-056, § 222-30-020, filed 11/17/92, effective 12/18/92. Statutory Authority: RCW 76.09.040, 76.09.050 and chapter 34.05 RCW. WSR 92-15-011, § 222-30-020, filed 7/2/92, effective 8/2/92. Statutory Authority: RCW 76.09.040. WSR 88-19-112 (Order 551, Resolution No. 88-1), § 222-30-020, filed 9/21/88, effective 11/1/88; WSR 87-23-036 (Order 535), § 222-30-020, filed 11/16/87, effective 1/1/88; Order 263, § 222-30-020, filed 6/16/76.]