DRAFT_-_Appendix_A___Pearl_Cache.pdf

DRAFT Pearl Cache Stewardship Appendix A

TECHNICAL SPECIFICATIONS FOR SERVICE WORK ITEMS

SECTION I – DEFINITIONS

1.1 DEFINITIONS

ACCEPTABLE QUALITY LEVEL: Acceptance of work will be based on compliance with all specifications corresponding to the appropriate task(s); refer to the Performance Requirements Summary in Section E.4 of Contract. A minimum AQL is required for all service work – hand or mechanical. The minimum AQL will receive a satisfactory performance rating.

BIOMASS TREES: Any conifer material 2.0 foot in height to 4.9 inches DBH.

BOLE SPACING: The horizontal distance in feet from the edge of one leave tree bole to another leave tree bole, measured from the outside bark of each tree.

CIRCULAR PLOT: A sample plot within a thinning unit that is used to determine the number of desirable trees and other contract specifications.

COARSE WOODY DEBRIS: Woody material left on the ground to meet wildlife habitat requirements.

CROWN RATIO: The ratio of live crown length (tip of leader to base of the crown) to total tree length/height.

CROWN SPACING: The horizontal distance in feet between the dripline of a live crown to another live crown.

CUT TREES: Trees that do not possess the characteristics of desirable leave trees, and are required to be cut. As described by the contract or otherwise marked to be cut.

CUTTING UNIT: see Treatment Unit definition

DAMAGED TREES: Trees damaged beyond recovery. A tree that is larger than two feet in height, and has the top knocked out, is leaning more than 10 degrees, has less than one half of its original limbs, or has approximately 50 percent of bark removed from the circumference of the bole.

DBH: Diameter at breast height, measured at a point of 4 ½ feet above the ground level on the uphill side of the tree.

DECKING: Stockpiling of trees in a designated area.

DEAD/DYING TREES: Trees with the crown foliage changing from green to red, yellow, or needleless.

DIB: Diameter inside bark.

HANG-UP TREE: Any cut tree suspended above ground level.

HEALTHY REGENERATION: Young, healthy, dwarf mistletoe free conifers, less than 4.9 inches in diameter, free of defect or characteristics listed in Section II, 2.2.2.

LEAVE TREE: Trees that possess desirable characteristics and that serve to create the basis for designated spacing requirements, or are otherwise designated to be left.

NON-SAWTIMBER TREE: Timber meeting non-sawlog size specifications as defined in Appendix B, Division A.

PAYMENT UNIT: See Treatment Unit.

PERFORMANCE REQUIREMENTS SUMMARY (PRS): Identifies the key service outputs of the contract that will be evaluated by the Government to assure contract performance standards are met by the contractor.

PILING: Material moved to an agreed upon location shall be piled for future treatment by Forest Service.

PROGRESSION OF WORK: Work conducted in a progressive, workmanlike and orderly manner by the Contractor.

RESERVE CLUMPS: Groups of trees within a treatment area that are protected from cutting, may also include Individual Reserve trees.

SAWTIMBER TREE: Included timber meeting the Utilization Specifications as defined in Appendix B, Division A.2.

SLASH: Woody material existing or created that has accumulated on the forest floor. Woody material includes logs, pieces of logs, tops and branches.

SUBDIVISION: See Treatment Unit.

TEMPORARY ROADS: Non-permanent roads that are constructed by contractor for the purpose of treatment unit access.

TREATMENT UNIT: An individual area on the ground in which activities will be performed and which may appear as a separate pay item in the Schedule of Items.

UNSATISFACTORY WORK: If work quality falls below the AQL, the COR will issue a work order or notice of noncompliance to the Contractor in writing. Untreated or unsatisfactory treated areas shall be reworked to obtain satisfactory work quality.

WILDLIFE TREE: Standing tree marked to be reserved as a wildlife tree. Used by birds and small mammals for shelter, nesting, perching, etc.

SECTION II – ACTIVITY ITEMS

2.1 TASK DESCRIPTIONS:

Task 1 - Felling:

A. Clear-cut (CC) Units: 6A, 6B, 6C, 20A, 20B, 20C, 20E, 21, 23, 25D, 27, 28, 29 All trees are designated for cutting as shown in the table below.

B. Overstory Removal (OR) Units: 24A, 24B, 25A, 25B, 25C, 30A, 30B All trees are designated for cutting as shown in table below.

Table A – Felling Diameter Criteria Units Cutting Designation Requirements

All

Cut all live/dead conifer species > 5.0 inches DBH.

Coarse Woody Debris: leave 1-2 logs on the ground per acre, ≥ 5 inches large end diameter and ≥ 50 linear feet/acre.

1-2 dead trees per acre, meeting these requirements may be felled and left in place to ensure requirements are met.

Task 2 – Thin Biomass Trees:

A. Overstory Removal (OR) Units: 24A, 24B, 25A, 25B, 25C, 30A, 30B Thin live biomass trees (2.0 foot tall to 4.9 inches DBH) to leave healthy non-mistletoe infected trees according to Appendix A, Section 2.2 – Tree Characteristics, and the table below.

*Maximum stump height for biomass trees is 6 inches*

Table B – Biomass Thinning Diameter And Spacing Criteria Units Cutting Designation Requirements

24A, 24B, 25A, 25B, 25C, 30A, 30B

Thin live biomass trees

2.0 feet tall to 4.9 inches

DBH

Retain a 8 foot x 8 foot (+/- 1 foot) bole spacing using tree characteristics in

Section 2.2.

Task 3 - Slash:

A. All Units: All logging slash and non-sawtimber trees shall be lopped and scattered, not to exceed a depth of 24 inches.

B. OSR Units: All biomass trees shall be lopped and scattered, not to exceed a depth of 24 inches.

Task 4 – Road Maintenance A. Pre-haul, During-haul, and Post-haul road maintenance shall be performed to the standards and specifications in Appendix C, Road Maintenance Requirements.

Task 5 – Optional Unit 70 A. Skid pre-bunched material to designated location and pile for burning by the Forest Service. See H.23 in the Solicitation for piling specifications. The following provisions in Appendix B also apply: G.4.2.2, G.4.2.3, G.6.4, G.6.5, K-F.3.4#, K-G.6#, K-G.6.0.1#.

2.2 TREE CHARACTERISTICS: For thinning of biomass trees in Overstory Removal units

2.2.1 Desirable Leave Trees: The largest trees will be retained, favoring the healthiest and best formed trees in the following order:

1) Lodgepole Pine

2) Engelmann Spruce

3) Subalpine Fir

2.2.2 Cut Tree Characteristics: Trees with the following characteristics are examples of trees that may be selected as cut trees.

1) Crook or sweep greater than 20%

2) Dead or broken tops

3) Multiple tops

4) Mistletoe rating of 2 or greater (See Exhibit 1, Dwarf Mistletoe Rating System)

5) Leaning more than 20%

6) One half of bole is missing bark

7) Less than 40% live crown ratio

8) Any mistletoe located in the stem of tree

Exhibit 1 - Dwarf Mistletoe Rating System

Hoffman, James T. “Management Guide for Dwarf Mistletoe”. Forest Health Protection and State Forestry Organizations, May 2004. Web.