Section 669-21-9 - SKID TRAILS, YARDS, AND EQUIPMENT OPERATIONA.APPLICABILITY. The requirements of Section 9 apply to the construction, maintenance, and use of skid trails and yards in shoreland areas. This section does not apply to crossings of water bodies conducted in compliance with Section 11 of this rule.B.STREAM CHANNELS. Equipment used in timber harvesting and related activities shall not use stream channels as travel routes except when: 1. surface waters are frozen and snow covered; and,2. the activity will not result in any ground disturbance.C.DESIGN, CONSTRUCTION, AND CLOSEOUT. Skid trails and yards must be designed and constructed to prevent sediment and concentrated water runoff from entering a water body. Upon termination of their use, skid trails and yards must be stabilized.D.SETBACKS1. Except for crossings of stream channels or freshwater wetlands, equipment used in timber harvesting and related activities, including but not limited to the use of skid trails and yards, must be operated to avoid the exposure of mineral soil within 25 feet of any water body or wetland regulated by this rule. On slopes of 10 percent or greater, the setback for equipment operation must be increased by 20 feet, plus an additional 10 feet for each 5 percent increase in slope above 10 percent. These requirements are presented in an alternative format in the slope table in Section 12 of this rule.2. The provisions of this subsection apply only to a face sloping toward the water body or freshwater or coastal wetland, provided, however, that no portion of such exposed mineral soil on a back face is closer than 25 feet from the normal high water line of a water body or upland edge of a freshwater or coastal wetland. The setback requirements of this subsection shall not apply to skid trail approaches to crossings of stream channels or freshwater wetlands.3. Where such setbacks are impracticable, appropriate techniques shall be used to avoid sedimentation of the water body or wetland. Such techniques may include the installation of sump holes or settling basins, and/or the effective use of additional ditch relief culverts and ditch water turnouts placed to avoid sedimentation of the water body or wetland. If, despite such precautions, sedimentation or the disruption of shoreline integrity occurs, such conditions must be corrected.E.Exception. Timber harvesting and related activities in shoreland areas of streams draining less than 300 acres and wetlands adjacent to such streams may be conducted in a manner not in conformity with the setback requirements of the foregoing subsections provided persons conducting such activities take reasonable measures to avoid the disruption of shoreline integrity, the occurrence of sedimentation of water, and the disturbance of stream banks, stream channels, shorelines, and soil lying within ponds and wetlands. If, despite such precautions, the disruption of shoreline integrity, sedimentation of water, or the disturbance of stream banks, stream channels, shorelines, and soil lying within ponds and wetlands occurs, such conditions must be corrected. NOTE: For guidance on reasonable measures, consult the Bureau publication, "Best Management Practices for Forestry: Protecting Maine's Water Quality" (2004). This publication is available from the Bureau and on the Bureau's website, www.maineforestservice.gov.
01- 669 C.M.R. ch. 21, § 9