NEPA_Project_Design_Features.pdf

Westside Scott River Site Prep by Mastication NEPA Project Design Features

Project Design Feature

Description Units Rationale OR Applicable Standard and Guideline

Non-native Invasive Species- 2

Equipment and vehicles will avoid working within flagged noxious weed sites. Orange/black flagging labeled with INVASIVE SPECIES will be used to delineate population boundaries.

5310002 5310004 5310006 5310021

FSM 2900, EO 13112

Range - 3 Meadows (dry or wet) shall not be used for landings, staging areas, or contractor camping. No planting is proposed in site preparation and planting or salvage units that overlap meadows (dry or wet).

Meadows are defined as a non-forested, herbaceous opening, ¼ acre or larger with at least 50 percent herbaceous groundcover and/or riparian shrubs of alder and willow. Openings covered in ferns (Pteridium spp.), corn lily (Veratrum spp.), marlahan mustard (Isatis tinctoria) or other weedy species are exempt. Openings characterized by greater than 50 percent barren ground are also exempt.

5290002 5290037 5310004 5310006

Recreation and Scenery-7

Cut stumps 6” or lower within 100 feet of dispersed campsites listed below and displayed on Motor Vehicle Use Map (in addition campsite on road 45N72X). 51D015, 51D018, 51D019, 51D020, 51D021, 51D022, 52D013, 52D015, 52D016, 52D017, 54D001, 54D011, 55D001, 55D002C, 55D003, 55D004, 55D005, 55D006, 55D007, 55D008, 55D009, 55D010

5290029 5310002

To minimize resource impacts.

Watershed - 3 Project Riparian Reserves are established in the following manner per the Forest Plan (site tree for Salmon and Happy Camp districts is 170 feet, site tree for Scott and Oak Knoll districts is 150 feet):

For permanently flowing non-fish-bearing streams, it is the area on each side of the stream extending from the edges of the active stream channel to the top of the inner gorge, or to the outer edges of the 100-year floodplain, or to a distance equal to the height of one site-potential tree, or 150 feet slope distance (300 feet total, including both sides of the stream), whichever is greatest. For Salmon and Happy Camp ranger districts, this will be 170 feet (340 feet total) and 150 feet for the Oak Knoll and Scott River Ranger District.

For intermittent streams, the stream channel and extending to the top of the inner gorge, or extension from the edges of the stream channel to a distance equal to the height of one site potential tree, or 100 feet slope distance, whichever is greatest. For unstable lands, it is the extent of unstable and potentially unstable areas.

Consistent with Forest Plan direction, riparian reserves for wetlands and springs will be defined by the edge of the feature out to a distance equal to 1

5290002 S&G MA10-2

Westside Scott River Site Prep by Mastication NEPA Project Design Features site potential tree. These riparian reserves will be flagged and avoided during salvage harvest.

Watershed - 4 Tractors and mechanical harvesters will be excluded from all riparian reserves associated with stream channels, active landslides, inner gorges, and toe zones of dormant landslide deposits. In Roadside hazard tree units the equipment will be restricted to the road surface.

Equipment will be excluded from wetlands or wet meadows (excluding small springs and seeps).

To limit slope disturbance, inner gorge terrain (> 65% slope) that extends beyond riparian reserves will be buffered by 20-foot slope distance and excluded from mechanical equipment activities. In areas where treatments may conflict, a hydrologist will be consulted.

5310002 Unstable Lands: S&G

MA10-7, BMP 1.6, BMP

1.18 and BMP 1.19

Watershed - 10 During site preparation, material greater than 8’’ inches in diameter would not be removed unless needed to reduce 1,000 hour fuel loading to seven tons per acre, retain as close to

All units where applicable

S&G 3-6

Watershed - 11 Site preparation treatments would be designed to meet soils management direction in the Forest Plan.

Site preparation will be used to reduce fuels where the sum of one-hour, ten-hour, and 100-hour fuels exceeds 7 tons per acre.

All units where applicable

Wildlife – 8

No treatment, salvage harvest, or ground disturbing activity during any time of the year in areas within units that are flagged for avoidance; as these areas contain either known sites, occupied talus habitat, or potentially occupied talus habitat for the Scott Bar Salamander and Siskiyou Mountain Salamander. Sites will be flagged on the ground by the project wildlife biologist.

5290517 Survey and Manage Rules