DUIS_Summit Road Fuel Reduction NCT_AMND.pdf

Contract #:

Unit # Acres Treatment Residual Spacing Trees Per Acre

(tpa) Misc Info

UMF 113 5 NCT & Pile 21' x 21' 100 Table 1

UMF 100 3 NCT & Pile 17' x 17' 150 Table 1

UMF 095 10.5 NCT & Pile 30' x 30' 45 Table 1

UMF 097 14 NCT & Pile 17' x 17' 150 Table 1

UMF 092 2.5 NCT & Pile 17' x 17' 150 Table 1

UMF 084 4 NCT & Pile 17' x 17' 150 Table 1

UMF 082 7 NCT & Pile 17' x 17' 150 Table 1

UMF 079 11 NCT & Pile 35' x 35' 36 Table 1

UMF 075 11 NCT & Pile 17' x 17' 150 Table 1

UMF 139a 8 NCT & Pile 21' x 21' 100 Table 1

UMF 139b 32 NCT & Pile 17' x 17' 150 Table 1

UMF 141a 15 NCT & Pile 17' x 17' 150 Table 1

UMF 147b 31 NCT & Pile 17' x 17' 150 Table 1

UMF 152 10 NCT & Pile 17' x 17' 150 Table 1

UMF 152 8 NCT & Pile 17' x 17' 150 Table 1

Total Acres 172

UMF 146 5 NCT & Pile 21' x 21' 100 Table 1

UMF 141c 61 NCT & Pile 17' x 17' 150 Table 1

UMF 140b 21 NCT & Pile 17' x 17' 150 Table 1

UMF 164 9 NCT & Pile 21' x 21' 100 Table 1

Total Acres 96

Optional NCT & Pile Units

Mandatory NCT & Pile Units

Summit Road Fuel Reduction NCT DUIS for Non-Commercial Thinning (NCT)

Umatilla NF, Walla Walla RD Requisition #: 1168495 Summit Road Fuel Reduction NCT

Table 1: Miscellaneous Info

Species Preference: (1) Western larch, (2) Ponderosa pine, (3) Douglas-fir, (4) Subalpine fir, (5) Lodgepole pine,

(6) Englemann spruce, (7) Grand fir. Do not cut or masticate uncommon tree species such as quaking aspen, cottonwood, whitebark pine, and western white pine, pacific yew - will be retained, unless deemed hazardous to operations.

Thinning Specifications: Trees up to 10.0" dbh and down to 12" in height shall be cut to meet residual spacing and trees per acre standards as specified for each unit. Residual spacing values indicate a unit-wide average. Where possible, a 25% +/- variability in the residual spacing shall be applied. Conifers 10.0" DBH or greater will be used for leave trees and spacing. Trees less than 10.0" dbh that are under the crowns of over story Ponderosa Pine, Western Larch, or Douglas Fir should be felled to reduce ladder fuels. No thinning slash shall be left outside of unit boundaries.

Leave Tree Prioritization: Prioritize tree vigor over species. Favor more vigorous trees with healthy foliage, well-formed crowns (crown ratio >30%), and free of substantial signs of insect damage, mistletoe, or pathogen infection.

If vigor and crowns are roughly comparable, defer to species preference.

Stump Height: Trees shall be completely severed from the stump. Trees shall be cut below the lowest live limb, except when prevented by obstacles. Stump height shall not exceed 6” above ground level except when prevented by natural obstacles; in which case stump height shall not exceed 4" above the natural obstacles.

Hand Piling Specificatons: All activity slash and dead and down material ≤ 12.0” diameter shall be hand piled.

Minimum pile size shall be 6’ high x 6’ wide x 6’ long. Pile length and width shall not exceed 10’. Piles shall be stable, compact, and have enough fine fuels beneath the covered portion to ensure ignition and consumption. Piles shall be covered with contractor provided 6’ x 6’ or larger plastic sheeting that shall be placed in the top 1/3 portion of the pile and covered with enough slash to hold it in place. When possible, the contractor shall utilize activity slash to create one large pile rather than creating several smaller piles. Piles shall be constructed a minimum of 5’ from leave trees and have a minimum of a 5’ clearance from stumps, logs, and snags with diameters ≥ 12”. Slash shall not extend beyond the main perimeter of the pile. Do not pile within 10’ of roads, trails, physical improvements, private land, and fence lines.

Lop & Scatter Specifications: All activity slash shall be lopped to a depth of ≤ 18”, be evenly distributed across the units to a maximum of 12 tons/acre in any portion of the unit, and pulled back a minimum of 5’ feet from all leave trees. Residual slash shall be lopped to a depth of ≤ 18”. Trees boles 16’ and longer shall be bucked in half or as many times as needed so that pieces are not longer than 8’.

Soils & Botany: All motorized travel over scab openings and meadows is prohibited to minimize soil disturbance and protect sensitive plant species. Motorized travel is restricted to existing road surfaces. Meadows and scab flats

(lithosols) will not be used for skid trails, landings, or roads/parking areas unless no other location is practical.

Roads/Trails/Recreation: All roads, fences, snowmobile trails, and hiking trails shall be kept free of slash. This includes road surfaces, cut banks, roadside ditches, and culverts. Any damage or obstruction to hiking trails caused by contract operations will be addressed and/or repaired immediately by the contractor. Drive in access on closed roads may be granted with a closed road use waiver approved by the Walla Walla District Ranger and wildlife staff.

RHCA/Stream No Treatment Buffers: Category 1 - 300', Category 2 - 150', Category 4 -100'. Leave all trees within 100' of seeps, springs, bogs, or elk wallows.

Wildlife: Immediately notify COR of any Raptor nest sites found within or directly adjacent to any contracted units.

Based on recommendations from the District Wildlife Biologist, work within those units may be deferred to a later date to limit impacts and protect nest sites from disturbance. Retain snags not presenting a hazard to operations.

Retain snags with broken tops and signs of excavation whenever possible. Wildlife features including wallows, springs, seeps, bogs, cliffs, rockslides (talus), caves, boulders, lithosols, and milkweed populations will be avoided

100.0 feet or more.