s100051_03_Appendix_A3_Service_SFF_alternate_presentation.pdf

AG-03R6-S-10-0051

South Fork Fish Creek Stewardship IRSC / Lolo NF Appendix A-3, Page 1 of 4

APPENDIX A-3

STEWARDSHIP CONTRACT

FUELS TREATMENT, SUBSOILING, SLASH PLACEMENT, and OTHER SERVICES

Unless otherwise agreed to in writing by the Contracting Officer, the Contractor shall perform services according to the following requirements:

1. Dust Abatement MgCl (SCHEDULE OF ITEMS B.1.9)

(a) Contractor shall apply one application of MgCl or CaCl prior to hauling.

(b) The Contractor shall perform dust abatement services in accordance with all of the requirements of this contract, including, but not limited to those outlined in this Appendix A and Appendix C.

(c) This specification applies to the following Mandatory items:

Item Road From To Miles Mandatory 343 19.35 19.7 0.35

20.25 20.65 0.4

19.95 20.15 0.2

21.25 22 0.75

22.3 23.75 1.45

2.7 2.9 0.2

4.25 4.6 0.35

5.5 5.95 0.45

9.2 9.6 0.4

Total 4.55

When conditions are such that dusting would result in hazardous driving conditions or there would be an appreciable loss of road surface binder material, Contractor shall control such dusting by application of a dust abatement treatment to the surface of roadways and other traveled areas according to referenced or attached specifications or other specifications agreed to in writing. This treatment will provide a surface which can be bladed and retreated when necessary. It is not intended to produce a permanent waterproof wearing surface or dust control for more than 1 year, even though some residual value may be retained. It is intended to be compatible with the physical characteristics of the road surface, such as parent material, percent fines, relative humidity, or possibly some residual dust abatement material.

DUST ABATEMENT SPECIFICATIONS

The Contractor shall furnish and apply Magnesium Chloride or Calcium Chloride dust palliative materials. The Contractor will provide all equipment, operating supplies, operators, supervision and support functions necessary to perform the work in compliance with these specifications.

Appendix A-3, Page 2 of 4

CHLORIDE DUST PALLIATIVE MATERIALS

(a) Type: A chloride brine consisting of water and magnesium or calcium chloride, or calcium chloride flakes.

(b) Chemical Composition: The chemical composition shall be as follows:

Magnesium or Calcium Chloride Brine

Chloride brines shall consist of water and magnesium and/or calcium chloride. The chemical composition, percent by weight brine, shall be as follows:

Chloride Concentration (Sum of Magnesium & Calcium Chloride) Magnesium Chloride products 28.0 % minimum Calcium Chloride products 36.0 % minimum Sulfate 4.3 % maximum Nitrate 5.0 % maximum

(Test method R1-412/Cl must be used. It is available upon request from USDA Forest Service, Regional Materials Engineering Center, P.O. Box 7669, Missoula, Montana 59807)

The pH shall be between 4.5 and 10.0. The temperature of the material shall be 40oF or above when it is applied.

SURFACE PREPARATION

Prior to application of chlorides, the roadway shall be prepared by T-101 Surface Blading, and watered as necessary to achieve adequate penetration of the chlorides without runoff. If flakes are used, water will be added after placing the flakes to facilitate penetration of the chlorides into the roadway.

APPLICATION

(a) The Distribution Equipment shall be so designed, equipped, maintained, and operated such that the dust abatement material may be applied uniformly on variable widths of surface.

For liquid products the following requirements shall apply: (1) The spray pattern from each nozzle on the spray bar shall be uniform across the spray bar; (2) Distribution equipment shall include accurate volume measuring devices or a calibrated tank, a thermometer for measuring temperatures of tank contents, and a hose and nozzle attachment for applying material to areas inaccessible to the spray bar.

Calcium Chloride Flake shall be spread with equipment that evenly distributes the material across the required road width. The relative weight of material placed shall be easily determined during application.

Appendix A-3, Page 3 of 4

(b) Application Rate. Application rates will be as follows:

MgCl Brine..........0.30 gallons/square yard CaCl Brine..........0.22 gallons/square yard CaCl Flakes.........1.17 pounds/square yard

The Forest Service may field test Chloride brines prior to application to make sure that the products meet the minimum concentrations specified. Acceptance of the material will be based on the concentration shown on the manufacturer's certificate, or on results of laboratory quality assurance tests done by the Forest Service on samples taken from distribution or hauling vehicles.

Uniform distribution shall be obtained at all points. For liquid products the spray pattern from each nozzle on the spray bar shall be uniform across the spray bar. For flake products, the coverage will be uniform on the road surface. Overlapping or skipping between spread sections shall be corrected. Accidental spillage and areas with excess dust palliative that are hazardous to traffic shall be covered with additional road surfacing material. The surface of adjacent structures and trees shall be protected from spattering or marring. Dust palliative material shall be discharged only in approved areas, and shall not be allowed to flow into ditches or stream courses. All products may be placed in one application.

All spreading and hauling equipment shall comply with applicable State and Federal requirements including GVW limitations.

(c) Certification with Shipment. When each load of chloride material is delivered, the Purchaser shall furnish one copy of the Bill of Lading, and a fully executed Certificate of Compliance indicating, as a minimum, the following information: Date, Material composition by weight of MgCL and CaCl, Net weight of shipment, Net gallons at 60 degrees F, Specific Gravity of brine at 60 degrees F. A separate Certificate of Compliance will not be required if the standard Bill of Lading contains the essential information required by the certificate.

(d) Sampling. Sampling of chloride material may be required to validate certifications furnished by the Purchaser. When sampling is directed by the Forest Service, the actual samples will be taken by the Purchaser in the presence of the Forest Service representative. All delivery and distribution equipment shall be constructed to permit sampling in conformance with AASHTO T-40 test procedure. Samples shall be obtained from hauling units just prior to application of the material.

(e) The Contractor shall perform dust abatement services in accordance with all of the requirements of this contract, including, but not limited to those outlined in this Appendix A and Appendix C.

Appendix A-3, Page 4 of 4

2. Quality assurance surveillance plan / performance requirements summary

APPENDIX A3

QASP / Performance requirements summary (PRS)

The following describes the major items in the contract with the incentives and deductions for the work described. Items below are included here as requirements.

Work Statement Performance Standard

Government Method of

Assessment Incentive/Deduction

Dust Abatement Meets 100% specifications.

COR/ER or Inspector conduct periodic monitoring and visual inspection.

• Rework is required if Contractor fails to meet standard.

• The Contractor’s quality will be reflected in the performance assessment either positive or negative.

• If the Contractor fails to meet standards, work may be suspended or put in Default for failure to take corrective action immediately. Result in adverse performance assessment.