J.1.3 FSSS_Bluff B Reclamation.pdf

PROJECT SPECIFICATIONS

RILEY PASS URANIUM MINE SITES

BLUFF B NORTHEAST RECLAMATION

PROJECT

Custer Gallatin National Forest

April 2021 https://www.bing.com/images/search?view=detailV2&ccid=VCAUxpC0&id=FD0B50480F85B0D2ABBBA661B3F4F917761EEE77&thid=OIP.VCAUxpC0aTGqk6EkzC_WrQHaID&mediaurl=https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/ForestServiceLogoOfficial.svg/1200px-ForestServiceLogoOfficial.svg.png&exph=1305&expw=1200&q=usfs+logo&simid=608053847592339661&selectedIndex=0

Table of Contents Preface

101 - Terms¸ Format¸ and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid¸ Award¸ and Execution of Contract

Delete Section 102

103 - Scope of Work

Delete Subsections 103.02, 103.03, 103.04, 103.05

104 - Control of Work

Delete Subsections 104.01, 104.02, 104.04

104.06 Use of Roads by Contractor

106 - Acceptance of Work

106.01 Conformity with Contract Requirements

106.02 Visual Inspection

107 - Legal Relations and Responsibility to the Public

Delete Subsection 107.05

108 - Prosecution and Progress

Delete Section 108

109 - Measurement and Payment

Delete Subsections 109.06, 109.07, 109.08, 109.09

109.01 Measurement of Work

109.02 Measurement Terms and Definitions

151 – Mobilization

151.01 Description

152 – Construction Survey and Staking

152.01 Description

152.02 Qualifications

152.03 Submittals

152.04 General

152.05 Survey and Staking Requirements

155 - Schedules for Construction Contracts

Delete Section 155

156 - Public Traffic

Section 156. – Public Traffic

156.01 Description

156.02 Material

156.03 General

156.04 Temporary Traffic Control

156.06 Acceptance

156.07 Measurement and Payment

157 – Soil Erosion and Sediment Control

157.02 Material

157.04 General

157.05 Controls and Limitations on Work

157.07 Sediment Retention Structures

157.11 Waterway and Slope Protection and Stabilization

157.12 Temporary Soil Stabilization

157.18 Payment

158 – Watering for Dust Control

Section 158. – Construction Water

158.01 Description

158.02 Material

158.03 General

158.04 Acceptance

158.05 Measurement

158.06 Payment

201 – Clearing and Grubbing

201.06 Disposal

204 – Excavation and Embankment

Section 204. – Excavation and Embankment

204.01 Description

204.02 Definitions

204.03 Material

204.04 Mine Waste Excavation, Mine Waste Embankment, and Landform Construction

204.05 Mine Waste Compaction

204.06 Internal Haul Road Construction and Maintenance

204.07 Acceptance

204.08 Measurement

204.09 Payment

703 – Aggregate

703.17 Granular Rock

Preface Preface_wo_04_10_2019

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads.

101 - Terms¸ Format¸ and Definitions 101.01_National_11_9_2016

Add the following paragraph to Subsection 101.01:

101.01 Meaning of Terms.

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03_National_11_9_2016

Add the following to Subsection 101.03:

101.03 Abbreviations.

(a) Acronyms.

AGAR — Agriculture Acquisition Regulations

AFPA — American Forest and Paper Association

FSAR — Forest Service Acquisition Regulations

MSHA — Mine Safety and Health Administration

NESC — National Electrical Safety Code

WCLIB — West Coast Lumber Inspection Bureau

(f) Miscellaneous unit abbreviations.

MP — milepost location ppm — parts per million volume

STA station location

101.04_National_9_5_2018

Make the following changes to Subsection 101.04:

101.04 Definitions.

Delete these definitions and replace the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads.

Contractor — The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “Purchaser”.

Culvert — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure.

Drawings — (Public Works Contracts) Design sheets or fabrication, erection, or construction details submitted to the Contracting Officer by the Contractor according to FAR Clause 52.236-21 Specifications and Drawings for Construction. Also refers to submissions and submittals.

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work.

Right-of-Way — A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Solicitation— (Public Works Contracts) The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders.

Add the following definitions:

Adjustment in Contract Price — “Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change — “Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Forest Service — The United States of America, acting through the Forest Service, U.S. Department of Agriculture.

Neat Line — A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road — Temporary construction access built along the route of the project.

Purchaser — The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse — A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order — An order affecting and controlling traffic on roads under Forest Service jurisdiction.

Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Shop Drawings — (Timber and Stewardship Contracts) Referred to as “Drawings” in FP-14, include drawings, diagrams, layouts, schematics, descriptive literature, illustrations, lists or tables, performance and test data, and similar materials furnished by Purchaser to explain in detail specific portions of the work required by the contract.

Utilization Standards —

The minimum size and percent soundness of trees described in Public Works contract specifications or Timber Sale and IRTC contract provisions to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 - Bid¸ Award¸ and Execution of Contract 102.00_National_11_9_2016

Delete Section 102 in its entirety.

Delete Section 102.

103 - Scope of Work 103.00_National_11_9_2016

Delete all of Section 103 except Subsection 103.01 Intent of Contract.

Delete Subsections 103.02, 103.03, 103.04, 103.05.

104 - Control of Work 104.00_National_11_9_2016

Delete Subsections 104.01, 104.02, and 104.04.

Delete Subsections 104.01, 104.02, 104.04.

104.06_National_11_9_2016

Add the following to Subsection 104.06:

104.06 Use of Roads by Contractor.

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

106 - Acceptance of Work 106.01_National_7_18_2017

Delete Subsection 106.01 and replace with the following:

106.01 Conformity with Contract Requirements.

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.

Perform all work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown on the plans or specified in the contract.

Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more strict.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

The Government may inspect, sample, or test all work at any time before final acceptance of the project.

When the Government tests work, copies of test reports are furnished to the Contractor upon request.

Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the Government, the Contractor’s results may be used by the Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.

Acceptable work conforming to the contract will be paid for at the contract unit bid price. Four methods of determining conformity and accepting work are described in Subsections 106.02 to 106.05 inclusive.

The primary method of acceptance is specified in each Section of work. However, work may be rejected at any time it is found by any of the methods not to comply with the contract.

Remove, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be at no cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the Contracting Officer. If the dispute is unresolved after reasonable steps are taken to resolve the dispute, further evaluation may be obtained by written request. Include a narrative describing the dispute and a proposed resolution protocol that addresses the following:

1. Sampling method

2. Number of samples

3. Sample transport

4. Test procedures

5. Testing laboratories

6. Reporting

7. Estimated time and costs, and

8. Validation process.

If the evaluation requires additional sampling or testing be performed, mutually agree with the Government on witnessing procedures and on sampling and testing by a third-party laboratory. Use a third-party laboratory accredited by the AASHTO accreditation program. Provide proof of the laboratory’s accreditation for the test procedures to be used. Do not use the same laboratory that produced the disputed Government test results or that produced the test results used as a basis for the dispute.

The Contracting Officer will review the proposed resolution protocol and may modify it before final approval and execution.

The Government will use the approved resolution protocol test results to determine the validity of the disputed testing. If the Government test results are validated, the Contractor will be responsible for all costs associated with developing and performing the resolution protocol. If the Government test results are not validated, the Government will be responsible for all costs associated with developing and performing the resolution protocol. If the validity of the Government test results cannot be determined, the Contractor and Government will equally share all costs associated with developing and carrying out the resolution protocol.

(b) Alternatives to removing and replacing non-conforming work. As an alternative to removal and replacement, the Contractor may submit a written request to:

1. Have the work accepted at a reduced price; or

2. Be given permission to perform corrective measures to bring the work into conformity.

The request must contain supporting rationale and documentation. Include references or data justifying the proposal based on an evaluation of test results, effect on service life, value of material or work, quality, aesthetics, and other tangible engineering basis. The Contracting Officer will determine disposition of the nonconforming work.

Delete Subsection 106.02 and replace with the following:

106.02 Visual Inspection.

Acceptance is based on visual inspection of the work for compliance with the specific contract requirements. Use prevailing industry standards in the absence of specific contract requirements or tolerances.

107 - Legal Relations and Responsibility to the Public 107.05_National_7_18_2017

Delete Subsection 107.05 in its entirety.

Delete Subsection 107.05.

108 - Prosecution and Progress 108.00_National_11_9_2016

Delete Section 108 in its entirety.

Delete Section 108.

109 - Measurement and Payment 109.00_National_11_9_2016

Delete Subsections 109.06, 109.07, 109.08, and 109.09 in its entirety.

Delete Subsections 109.06, 109.07, 109.08, 109.09.

Delete the third paragraph and Table 109-1 of Subsection 109.01 and replace with the following:

109.01 Measurement of Work.

Take measurements as described in Subsection 109.02 unless otherwise modified by the Measurement Subsection of the section controlling the work being performed. Table 109-1 indicates the accuracy required for quantities of the various pay units used in the Schedule of Items. Use this guide to determine the decimal placement in the final payment.

Table 109-1

Decimal Accuracy of Quantities for Final Payment Pay Item Level of Precision Linear Foot 1

Exception--Timber, Steel, and concrete Piles 0.1 Station 0.1 Mile 0.01 Square Foot 0.1 Square Yard 0.1 Each 1 Acre 0.01 Gallon 1 M-Gals. 0.1 Cubic Yard 1

Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;

0.1

Exception--Concrete; Masonry 0.01 Pound 1 Ton 0.1

Exception--Calcium Chloride;

Sodium Chloride; Hydrated Lime;

Bituminous Materials; Pavements;

Bed Course Materials

0.01

Hour 0.1

MFBM 0.01

Station Yard 1 Cubic Yard Mile 1 Ton Mile 1

109.02_National_11_9_2016

Add the following sentence to Subsection 109.02(b):

109.02 Measurement Terms and Definitions.

(b) Contract quantity. Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

151 – Mobilization

151.01_01_RPSP_03_10_2021

Add the following to Subsection 151.01:

151.01 Description

Work also includes providing weed free equipment to the inspection location and removing and washing all soil off equipment at the end of the project.

Contractor shall clean all seeds, dirt, grease and debris from equipment prior to mobilizing to the site.

The Contractor shall contact the CO minimum 7 days in advance of mobilizing equipment and arrange for an offsite weed inspection at a mutually agreed upon location.

At the end of the project and prior to moving equipment off the Riley Pass location, the contractor shall clean all dirt and debris from the equipment at an area designated by the CO.

152 – Construction Survey and Staking

152.01_01_RPSP_01_10_2018

Add the following to Subsection 152.01:

152.01 Description.

Designs were completed based predominantly on LiDAR survey data from a 2012 Aerometrics, Inc.

flight, published on January 14, 2013, which was verified by Unmanned Aerial Vehicle (UAV) data collection and reduction by Brosz Engineering & Surveying of Bowman, North Dakota during November 2020. These LiDAR surface contours are shown as the existing ground contours on the Drawings. Protect Government set control points, monuments, or section corners. Set or reset destroyed control points.

Construction staking and quantity measurement surveys shall be performed under the direct supervision of a licensed Professional Land Surveyor for the state in which work is completed.

If UAV surveying is performed, the pilot must have a Part 107 license.

Delete Subsection 152.02 and add the following:

152.02 Qualifications.

Provide technically qualified survey personnel including a licensed Professional Land Surveyor who is licensed in South Dakota. Provide technically qualified survey crews experienced in construction staking and topography surveying.

Add the following to Subsection 152.03:

152.03 Submittals.

Include staking activities in the construction schedule submitted according to C-5 Submittals. Include the dates and sequence of each staking activity. Surveying submittals shall include raw survey data, tin surface(s), and volume comparison between prework survey and finished grade surveys.

Add the following to Subsection 152.04:

152.04 General.

(c) Material. Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath or mark them with plastic flagging. Use designated colors for paint or flagging. Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink. Do not use aerosol spray paints.

Use moisture-resistant paper for survey notes. Keep notes in books with covers that will protect the contents and retain the pages in numerical sequence.

(d) Closely coordinate with Contractor and CO so that delays in the excavation of contaminated soils and other site work caused by Surveyor are minimized. Contractor may have to plan to perform excavation and other work in multiple areas to avoid delays.

(e) If surveys performed to identify surfaces are performed using an UAV, the following shall apply:

1. The maximum elevation that the UAV may attain during survey is 300 feet above the ground level.

2. Minimum camera resolution is 16 megapixels.

3. Minimum GSD is 3.97 cm.

Add the following to Subsection 152.05:

152.05 Survey and Staking Requirements.

(c) Include survey data for a distance of 100 feet beyond all disturbance limits.

(d) Ground Control/Check points for UAV surveying. Set the following number of ground control/check points:

1. 2 acres or less – 4 points

2. 2-5 acres – 6 points

3. 5 to 10 acres – 8 points

4. Larger areas – check points approximately located on a maximum 450 feet square grid pattern

(m) For surveys performed to identify surfaces either for pay quantities or any other reason, provide survey submittals for each survey event, including a description of what was surveyed, a .csv and .xml file of each surveyed surface, a map of the boundary of each surveyed surface, a cut/fill report of each surveyed surface and survey notes. Provide all survey submittals within four (4) business days of each respective surveying event. At a minimum, surveys shall be conducted for the following surfaces:

1. Prework Surface Survey: Perform a topographic survey of the existing ground after clearing and grubbing and before mine waste excavation and consolidation.

2. Excavated Surface Survey: Perform a topographic survey on the final grade following mine waste removal for both excavation step 1 and excavation step 2.

3. Consolidation Area Survey: Perform a topographic survey on the final grade of the consolidation area following placement and compaction of mine waste.

(n) Perform topographic surveys and provide maps and 3d scans with the following: Topographic surveys shall have survey shots that are a maximum of 20 ft apart and include all breaks in topography, prominent features, rock outcroppings, vegetation, trees, fences and any other necessary feature for a completed topographic survey.

1. One-foot contour intervals

2. Provide maps in Autodesk AutoCAD format and Adobe pdf form at

3. Provide orthographic images georeferenced to the site coordinate system

(o) Perform volume calculations between surfaces and provide all surfaces to the CO in LandXML electronic file format. Provide notification of apparent errors in furnished data within 4 business days.

Contractor shall stake all disturbance limits based on the Plans prior to construction. Contractor shall obtain the disturbance limits in electronic files from the CO. At a minimum, initial staking prior to any clearing, grubbing, or excavation shall consist of staking road alignments, grading limits, and temporary access routes.

(p) Vertical Accuracy for UAV survey.

1. Bare Ground and rock covered areas – 2.5 inches

2. Vegetated ground cover – 3 inches to 6 inches

3. Low lying shrubs – omit from final topography

Report Fundamental Vertical Accuracy (FVA) using National Data Elevation Program (NDEP) methodology and the following statement: Tested (meters, feet) Fundamental Vertical Accuracy at 95 percent confidence level in (type of terrain from above) using RMSEz*1.9600.

(q) Horizontal Accuracy for UAV survey.

1. Required horizontal accuracy is 1.5 inches.

2. Report horizontal accuracy using methods of NDEP.

(r) Survey Monuments - Preserve and protect all monuments established for perpetuating horizontal, vertical, cadastral, or boundary control. The survey monument at the northwest corner of Section 26, Township, 22 North, Range 5 East, will be destroyed during construction. Contractor shall have a licensed Professional Land Survey reference the location prior to disturbing the monument in order to properly reestablish its location. Reestablish the monument according to South Dakota state statute and by a licensed Professional Land Surveyor who is licensed in South Dakota. File the corner record with Harding County Clerk and Recorder.

155 - Schedules for Construction Contracts 155.00_National_11_9_2016

Delete Section 155 in its entirety.

Delete Section 155.

156 - Public Traffic

156.00_RPSP_08_2_2019

Delete Section 156 in its entirety and replace with the following:

Section 156. – Public Traffic

Description

156.01 Description.

This work consists of controlling and protecting public traffic adjacent to and within the project.

Material

156.02 Material.

Conform to the MUTCD and the following Sections and Subsections:

Permanent Traffic Control 633

Traffic Signing and Marking Material 718

Concrete Barriers and Precast Guardwalls 618

Temporary plastic fence 710.11

Construction Materials

156.03 General.

Accommodate traffic according to MUTCD, approved traffic control plan and this section. Perform work in a manner that ensures safety and convenience of the public. Keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic. Delays may not exceed 60 minutes at any one time followed by an open period of no less than 10 minutes. Accommodate public traffic on roads adjacent to and within the project until the project is accepted according to Subsection 106.07(b).

Submit traffic control plan at least 30 days prior to intended use. Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved.

Post construction signs and traffic control devices in conformance with MUTCD and Forest Service EM 7100-15. All required signs will be in place and approved prior to beginning work on project.

If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.

156.04 Temporary Traffic Control.

Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:

(a) Furnish and install traffic control devices before the start of construction operations.

(b) All detours outside of clearing limits will be approved in writing by the CO as part of the traffic control plan.

(c) Install only those traffic control devices needed for each stage or phase.

(d) Relocate temporary traffic control devices as necessary.

(e) Remove devices that no longer apply to the existing conditions.

(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.

(g) Keep temporary traffic control devices clean.

(h) Remove all temporary traffic control devices upon contract completion or when approved.

(i) When required, use flaggers certified by the American Traffic Safety Services Association, the National Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

156.06 Acceptance.

Public traffic work will be evaluated under Subsection 106.02.

Measurement and Payment

156.07 Measurement and Payment

Do not measure Public Traffic for payment. Payment for contract work is provided indirectly. See Subsection 109.05.

157 – Soil Erosion and Sediment Control

157.00_RPSP_04_1_2021

Add the following to Subsection 157.02:

157.02 Material.

Provide erosion and sediment control materials from a certified noxious weed free source.

Delete Subsection 157.03:

Delete Subsection 157.04 in its entirety and replace with the following:

157.04 General.

Provide soil erosion and sediment control measures according to the contract erosion and sediment control plan, and this Section. Ten (10) days prior to the start of construction, submit a written plan according to Subsection 104.03 that provides temporary erosion control measures to minimize erosion and sedimentation within the work areas and external to the disturbance limits during and after construction. Include erosion control methods for all temporary roads such as ditching, water bars, rolling dips, grade sags, surfacing and any other method used to stabilize the temporary roads. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control without approval.

When erosion control measures are not functioning as intended, take corrective action to eliminate or minimize sediment in storm water discharges from the project.

After mine waste excavation and consolidation have been completed, install winter erosion control measures according to the specifications and schedule in the Erosion Control Plan. The winter erosion control measures for roads, excavation areas and consolidation areas are intended to prevent sediment transfer and erosion during winter and spring runoff. Winter erosion control measures, including tackifier, will be placed at the end of the project. All measures shall be left in place as winter erosion control.

157.05 Controls and Limitations on Work

Delete Subsection 157.05 paragraph 2

157.07 Sediment Retention Structures

Delete Subsection 157.07 (a) and replace with the following

157.09 (a) Sediment traps. Construct sediment traps with native soils to detain runoff from disturbed areas and settle out sediment. Provide granular rock outlet protection. Excavate and construct sediment traps according to Section 204.

157.11 Waterway and Slope Protection and Stabilization

Delete subsection 157.11(c) and replace with the following

(c) Check dams. Construct granular rock, gravel, gravel bags, sandbags, fiber rolls and socks, or earth berms for temporary check dams to reduce the velocity of runoff in ditches and swales.

157.12 Temporary Soil Stabilization

Add the following to Subsection 157.12(a)

Furnish a safe, non-toxic linear anionic polymer tackifier, Hydrobond® by JRM Chemicals (or equal) which, when hydraulically applied and dried becomes a temporary soil stabilizer conforming to the following:

1. Has no germination or growth inhibiting factors;

2. Forms no water insensitive crust;

3. Contains material that is 100 percent biodegradable; and

4. Is colored with a green dye non injurious to plant growth.

Mix Tackifier with water in batches. For Hydrobond®, apply at a uniform rate of 12 pounds per acre, mixed with 1,000 gallons of water for each acre. The CO will inspect and approve each batch of tackifier for proper mix ratio and application coverage. Apply the tackifier following manufacture recommendations and ensure that the applied tackifier has no gaps between the product and the soil, and that it provides 100% uniform coverage of all disturbed soil areas after application. Add green dye in accordance with manufactures recommendations and as approved by the CO. Application coverage approval by the CO will be based on uniformity of dye applied on soil. Follow-up applications shall be made as needed to cover weak spots.

Do not apply when winds exceed 12-mph without prior approval by the CO, or when precipitation is anticipated within 12 hours of application.

157.18 Payment

Delete Subsection 157.18 (a), (b), and (c) and replace with the following:

The accepted quantities will be paid at the contract price per unit of measurement for the Section 157 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

158 – Watering for Dust Control

158.00_RPSP_03_08_2021

Delete Section 158 in its entirety and replace with the following.

Section 158. – Construction Water

Description

158.01 Description

This work consists of furnishing and applying water for dust control caused by work on haul roads within the National Forest System Land boundary and for compaction moisture where required.

Material

158.02 Material

Conform to the following Subsection:

Water 725.01(c)

Construction Requirements

158.03 General

Provide an adequate water supply and apply water uniformly across the traveled way as necessary to control dust on National Forest Roads and temporary haul routes. Apply water as needed to material to meet compaction specifications in Section 204. Uniformly apply water using pressure-type distributors, pipelines equipped with spray systems, or hoses with nozzles.

158.04 Acceptance.

Water will be evaluated under Subsection 106.02. Furnishing and applying water will be evaluated under Subsection 106.02.

Measurement

158.05 Measurement

Measure the Section 158 pay items listed in the bid schedule according to Subsection 109.02 and the following as applicable:

When measuring water for dust control by volume or mass; measure by metering. Submit daily metering tickets to the CO.

Payment

158.06 Payment

The accepted quantities will be paid at the contract price per unit measurement for the Section 158 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

201 – Clearing and Grubbing

201.00_RPSP_03_08_2021

Delete Subsection 201.06 and replace with the following:

201.06 Disposal.

Provide temporary stockpiles of trees, woody debris, brush, and stumps within the construction disturbance limits and adjacent to the project work sites. Brush, tops and limbs shall be scattered outside the disturbance limits at approved locations. Logs 5” diameter and larger shall be cut into 4’ lengths and decked at approved locations or as Shown on the Drawings. Stumps shall be buried at the edge of the disturbance limits or at locations approved by the CO. Stumps shall placed in a single layer with each stump separated by an equivalent stump diameter from the adjacent stump. Place backfill around stumps and equipment compact.

Timber from National Forest Service lands are the property of the Government.

204 – Excavation and Embankment

204.00_RPSP_03 08 2021

Delete Section 204 in its entirety and replace with the following:

Section 204. – Excavation and Embankment

Description

204.01 Description.

This work consists of a prework survey, excavating mine waste from the excavation areas E1 through E5 with GPS machine-controlled equipment, hauling, placing, compacting mine waste in embankment consolidation areas, and a final grade survey.

204.02 Definitions.

(a) Mine Waste. Surface investigations have been conducted at the Site to delineate mine waste areas.

The mine waste boundaries have been established based on the investigation data. Mine waste excavation areas within the mine waste boundaries as are indicated on the Drawings. Actual boundaries and depths of mine waste may vary.

Mine waste is defined as native material that has been generated, transported, or reworked during mining activities, which may exhibit arsenic and/or radium226 concentrations exceeding cleanup goals that have been established for the removal action. Cleanup requirements for the Site define mine waste with one or more of the following characteristics:

• Arsenic > 142mg/kg

• Radium-226 > 30pCi/g

Mine waste areas that are known to exceed cleanup requirements on show on the drawings

(b) Rock Salvage. Rock salvage includes salvaging rocks larger than 24 inches along their intermediate axis from mine waste excavation areas.

Material

204.03 Material.

Conform the following Subsections:

Water 725.01

Cover Borrow Soil 713.01

Construction Requirements

204.04 Mine Waste Excavation, Mine Waste Embankment, and Landform Construction.

Construct as follows:

(a) Mine waste excavation. Prior to any site excavation or grading, Contractor shall perform a prework topographical survey of the existing ground surface on all excavation areas and mine waste consolidation areas and submit the survey data and completed surface models to the CO in accordance with Section 152. Contractor shall supply quantities calculated from the initial prework topographical survey and the topographical survey or the final grade of the excavation areas.

Excavate mine waste from the excavation areas in the in the following order:

1. Step 1 Excavation – Excavation Area E1

a. Place mine waste in the deepest portions of the consolidation areas as shown on the Drawings and no higher than three (3) feet below the final grade.

2. Step 2 Excavation – Excavation Areas E2 through Area E5

a. Place mine waste in areas as shown on the Drawings to final grade.

Excavate mine waste to the elevations as shown on the Drawings using GPS Machine-Mounted Grade Control Equipment. The GPS equipment shall use Real Time Kinematic (RTK) technology to achieve survey grade accuracy. The GPS equipment must include an in-cab display which supports background mapping including the design breaklines and contours, and instantaneous cut/fill information at the blade. Supply all GPS equipment ready to use including base stations, radios, repeaters, receivers, and machine mount units.

The excavation depths shown on the Drawings are approximate and based on available historical records. Excavate mine waste only and do not excavate native undisturbed soil. Over excavation of native materials underlying mine wastes shall not be allowed. Transport excavated mine waste to the mine waste consolidation areas, and place and compact the mine waste in accordance with these specifications and as indicated on the Drawings.

Salvage and stockpile rocks, larger than 24 inches along their intermediate axis, from the excavation area. Contractor shall stockpile salvaged rock within the construction disturbance limits and adjacent to the project work sites at location(s) approved by CO.

Grade the perimeter transitions and tie into existing undisturbed ground to provide uniform transitions. Apply additional erosion control methods and tackifier to the excavation area according to the approved Erosion Control Plan. The CO must approve mine waste excavation completion. Contractor shall perform a topographical survey of the final grade surface and submit the survey data and completed surface models to the CO in accordance with Section 152.

(b) Mine Waste Consolidation Area – Prepare surface in consolidation areas by removing topsoil and break up the ground surface to a minimum depth of 12 inches. Remove irregularities that will prevent proper placement and compaction of mine waste. Roller compact the ground surface according to 204.05. Place mine waste in loose layers not exceeding 12 inches using GPS Machine-Mounted Grade Control Equipment as shown on the Drawings. The GPS equipment shall use Real Time Kinematic (RTK) technology to achieve survey grade accuracy. The GPS equipment must include an in-cab display which supports background mapping including the design breaklines and contours and instantaneous cut/fill information at the blade. Supply all GPS equipment ready to use including base stations, radios, repeaters, receivers, and machine mount units.

Compact each layer according to Subsection 204.05. Construct the mine waste consolidation areas within the footprints and to the lines, grades, and cross-sections shown on the Drawings.

On slopes steeper then 3H:1V cut horizontal steps in the existing slope to a sufficient width to accommodate placement and compaction operations and equipment. Step the slope as the embankment is placed and compacted in layers. Begin each step at the intersection of the original ground and the vertical cut of the previous step.

Apply additional erosion control methods and tackifier to the excavation area according to the approved Erosion Control Plan.

Contractor shall perform a topographical survey of the final grade surface and submit the survey data and completed surface models to the CO in accordance with Section 152. Contractor will replace the northwest corner monument of Section 26, Township, 22 North, Range 5 East in accordance with Section 152.

204.05 Mine Waste Compaction.

This section shall apply to all mine waste and other areas as directed by the CO. Place mine waste material in horizontal layers not exceeding 12-inch loose thickness and compact using the

Roller Compaction Method describe below.

(a) Roller Compaction. Adjust the moisture content to a level suitable for compaction.

Operate rollers over the full width of each layer until visual displacement ceases, but not fewer than three complete passes. Compaction shall meet minimum 85% compaction. Use rollers that meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than 250 pounds per square inch of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum weight of 6 tons, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 pounds per square inch.

(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 250 pounds per square inch of width of roller drum.

Compact the mine waste to 85 percent of maximum density and within 3% of optimum moisture content according to ASTM D1557 Compaction testing will be required to demonstrate conformance to the specified standards. The Contractor shall measure the in-place dry density and moisture content during mine waste consolidation construction at a rate of one test per approximately 5000 cubic yards. Measurements will be based on optimum moisture and maximum density curves from a ASTM D1557 Modified Proctor submitted by the contractor. If the excavated material appears to be different in appearance or performance, additional ASTM D1557 Modified Proctor may be required. Field or in-place density refers to the dry density expressed in pounds per cubic foot of a layer of compacted material in place at the site as determined by a sample representative of the compacted layer. The field density shall be determined in accordance with AASHTO T-147, AASHTO T-181, ASTM D 1556, or ASTM D 2167.

Submittals

a) Moisture-density characteristics using ASTM D1557 Modified Proctor for mine waste.

204.06 Internal Haul Road Construction and Maintenance.

Contractor shall prepare a plan and submit a Temporary Haul Road Plan to the CO for approval for construction of temporary haul roads. The plan shall include (at a minimum) a plan view of the proposed roads, a profile of the proposed roads clearly showing grades, typical cross sections, turnouts, road surfacing, erosion control methods, and drainage features. Upon approval of the plan, Contractor shall construct the proposed road.

Construction must include those elements described in the approved plan and also must include clearing and grubbing, stripping and stockpiling cover soil from the disturbance.

Following construction of the temporary haul roads, Contractor shall maintain temporary haul roads to the extent necessary to support haul traffic. Maintenance may include blading and placement of erionite-free road surfacing, as well as other standard road maintenance items. At the end of the project, Contractor shall construct water bars, ditches, rolling dips, and other erosion control methods to limit sediment transfer and to stabilize the road section for storage according to Section 157.

204.07 Acceptance.

See Table 204-1 for sampling and testing requirements. Mine waste excavation, and mine waste embankment will be evaluated under Subsection 106.02.

Measurement

204.08 Measurement.

Measure the Section 204 items listed in the Schedule of Items according to Subsection 109.02. Measure items by comparing the excavation volume between the Prework Surface Survey and the Final Grade of Excavated Surface Survey. Survey according to Section 152.

Payment

204.09 Payment.

The accepted quantities will be paid at the Contract price per unit of measurement for the Section 204 pay items listed in the Schedule of Items. Payment will be full compensation for the work prescribed in this Section 109.

Table 204-1 Sampling and Testing Requirements

Material or Product

Type of Acceptance (Subsection)

Characteristics Test Method Specifications

Sampling Frequency

Point of Sampling

Reporting Time

Mine Waste Measured and tested for conformance

Compaction Moisture Content ASTM D2167 1 per 5,000 yards of mine waste- In-place Before placing next layer

703 – Aggregate

703.00_RPSP_04_13_2021

Delete Subsection 703.17 and replace with the following:

703.17 Granular Rock.

Furnish hard, durable rock conforming to the following gradation:

Table 703-12 Granular Rock Gradation

Sieve Size Percent by Mass Passing Designated Sieve

(AASHTO T 27 & ASTM D5519)

8 inch (200 mm) 100

4 inch (100 mm) 40 – 60

No. 4 (4.75mm) 0.0 – 10