B08_Attach_1_SOW.pdf

2025 Redding AML and Demolition Project

Redding Field Office

SECTION A -- GENERAL STATEMENT OF WORK

Abandoned Mine Lands (AML) workings pose potential physical safety hazards to the public and our employees. There is a need to remediate these hazards to protect the public from dangerous abandoned mine workings (referred to as “features”).

SUMMARY

The BLM is soliciting proposals from businesses with abandoned mine land remediation experience. Specifically, we are looking for contractors who provide design, fabrication and installation of remediation of physical safety hazards associated with the abandoned mines which include working underground; and, capable of demolition activities. The project is located in

Shasta County within jurisdiction of the Bureau of Land Management’s (BLM) Redding Field

Office.

The Period of Performance for this contract will be October 1, 2025 through May 30, 2026. The work needed for this contract is identified in the following list.

TASK ITEM LIST FOR THIS CONTRACT (Pictures in Appendix E)

Name Latitude Longitude Description of Work Item

Swasey Shaft 40.54895 -122.49616

Backfill a 8' x 6' x 15' deep shaft at the

Swasey Recreation Area. Any damage to the hiking trail caused by this work will need to be repaired before demobilization. Expanding foam can be used.

Residential structure 1 40.747159 -122.750877

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Storage Structure 40.747155 -122.750949

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Workshop/Storage Shed 40.747029 -122.75091

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Adit 1 40.747729 -122.749578

Backfill. Native materials backfill should be at least 5' thick at ceiling height and compacted to minimize subsidence. The portal entrance shall be collapsed. Expanding foam can be used.

Miscellaneous Mining

Equipment 40.747471 -122.749081 Remove and dispose acResidential Structure 2 w/ attached travel trailer 40.747797 -122.747428

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Outhouse 40.7479 -122.747123 Demolish and backfill the pit.

Boneyard Area 40.747625 -122.74693 Remove and dispose of all items.

Name Latitude Longitude Description of Work Item

Log structure/Generator or pumphouse 40.747562 -122.747447

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Dumpsite 40.747701 -122.746482

Clean and remove all trash and debris by hand.

Collapsed Outhouse 40.7478 -122.746548 Demolish and backfill the pit.

Campsite 40.747692 -122.743874

Remove all construction debris and dispose of by hand

Residential Structure 3 40.744713 -122.742799

Leave structure intact, but remove modern trash and household items, from the interior and exterior as permissible by BLM's technical representative.

Ore Processing Structure 40.744284 -122.743483

Demolish and remove all construction materials and run a magnet over the area to pick up nails and lose metal debris.

Adit 2 40.74359 -122.743013

Install a bat gate with one removable bar.

Place the gate inside the adit in competent rock. The ore cart will be left in the mine.

Push ore cart farther into the adit to hide it from public view.

The work to be performed is within the BLM’s California Redding Resource Areas.

Construction activities may be limited to low fire danger periods.

SECTION B – DEFINITIONS AND ACRONYMS

DEFINITIONS AND ACRONYMS

B 1.1 Definitions.

Terms:

Collar – The surface opening to a pit.

Collar set – The timber, rock, steel or cement stabilizer of a pit collar.

Dump – Waste rock removed by mining and deposited on the surface.

Hazardous Materials are a substances or materials that the Secretary of Transportation has determined are capable of posing an unreasonable risk to health, safety, and property when transported in commerce, and has designated as hazardous under section 5103 of

Federal hazardous materials transportation law (49 U.S.C. 5103). The term includes hazardous substances, hazardous wastes, marine pollutants, elevated temperature materials, and materials designated as hazardous (see 49 CFR 172.101).

Highwalls and Open Pits Highwalls can be unstable at the top and the bottom and are prone to collapse. When approached from the top, the vertical edge of a highwall may not be seen in time or may crumble, leading to a fatal fall.

Pillar – Usually a column of ore or coal left to support the back or roof or to support the hanging wall.

Portal – The surface opening of a pit or tunnel.

Polyurethane Foam. Polyurethane foam or “PUF” is a commercially available product consisting of a two-part chemical system that is used to block openings.

Subtle Hazards – More subtle hazards associated with the site include encounters with wild animals (e.g., rattlesnakes); exposure to bat droppings, hantavirus, and dust. These hazards deserve special mention; sites containing bees should be dealt with cautiously or in cold weather.

Unstable Rock and Decayed Support include once solid beams and frameworks that may have been decaying for an unknown period of time. In many cases, there may be no support beams at all and the fractured roof or walls of a tunnel or highwall which can eventually collapse in response to vibrations and/or the force of gravity.

B 1.2 Acronyms.

ACRONYM Definition

ACI American Concrete Institute

ASTM American Society for Testing and Materials

ATV All-Terrain Vehicle

AWS American Welding Society

BAE Biological Assessment and Evaluation

BMP Best Management Practice

CDD California Desert District

CMP Corrugated Metal Pipe

CO Contracting Officer

COR Contracting Officers Representative

FAR Federal Acquisition Regulations

HASP Health and Safety Plan

HAZMAT Hazardous Materials

HDPE High Density Polyethylene

MSDS Material Safety Data Sheet

MSHA Mine Safety and Health Administration Occupational Safety and Health

OSHA Administration

PI Project Inspector

PUF Polyurethane Foam

QA Quality Assurance

QCI Quality Control Inspector

QCP Quality Control Program

SOW Statement of Work

B 1.3 CONTRACTOR

The Contractor shall furnish all personnel, facilities, equipment, materials, supplies, and services

(except as may be expressly set forth in this contract as furnished by the Government), and otherwise do all things necessary for, or incident to, the satisfactory performance of this contract.

Under this contract, the Contractor shall provide the items of work required to remediate physical safety hazards associated with the project. Nothing in this contract calls for work associated with the removal of hazardous materials (as defined by 49 CFR 105.5 (b)), or reclamation of lands which fall under the authority of the Comprehensive Response

Compensation Liabilities Act (CERCLA) or the Resource Conservation and Recovery Act.

SECTION C -- REQUIREMENTS AND SPECIFICATIONS

C 1.0 Road Access.

The Contractor may access the project areas from roads indicated on public access maps. BLM will help identify access into each site. Contractors shall note that road conditions may be poorly maintained and should be reviewed for equipment access prior to attempted delivery to a project site.

C 1.1 Site Access.

The Contractor shall transport equipment, supplies and personnel from existing trails and/or roads to the features. Access into work areas may be limited in some cases. All trail or road improvements shall obtain COR approval prior to construction.

C 1.2 Polyurethane Foam (PUF)

A PUF closure consists of installing a bottom form, then installing PUF to specifications and backfilling over the PUF to the specified level with common fill (2-feet or more unless otherwise specified). In some instances, a cast-in-place concrete slab, rock armoring, or construction of a rock wall may be used to prevent vandalism. Reclamation of disturbed areas may also be specified by the COR.

C 1.2.1 Materials

PUF is designed for molding and void filling applications. Co-blown (245FA solvent and water) foams shall have a minimum core density of 2 pounds per cubic foot, closed cell content greater than ninety percent, compressive strength greater than twenty-five pounds per square inch, and a minimum installed density of 1.85 pounds per cubic foot. Water

(100%) blown foams shall have a minimum core density of 2.5 pounds per cubic foot, closed cell content greater than ninety percent, compressive strength greater than twenty-eight pounds per square inch, and a minimum installed density of 2.0 pounds per cubic foot. Either system is ideally 1:1 by volume however pre-metered bags could use an off-ratio system. Exothermic reaction rates shall be low for both systems.

C 1.2.2 PUF Safety, Handling and Transport

Materials shall be stored per the manufacturer’s specifications. The Contractor shall be responsible for any lost or damaged equipment. In addition, damages or claims arising from PUF overspray shall be the responsibility of the Contractor.

C 1.2.3 Backing and Bottom Forms

A trench plug backing, or a shaft plugs bottom form and cross members shall consist of any commonly available building materials capable of sustaining an initial lift of 16 inches of PUF. Any combination materials listed in the material table will be acceptable.

Alternate materials will be acceptable upon approval by the COR.

When a form is used to support the initial layers of foam, the bottom form and cross members may consist of any commonly available, non-toxic building materials capable of sustaining an initial lift of 16 inches of PUF. Acceptable cross member materials include, but are not limited to, reinforcing steel, 2x4's, dowels, cardboard tubes, and fabric air-inflated plugs. Acceptable bottom form materials include, but are not limited to, plywood, cardboard, paneling, and carpeting. Any combination of the above materials will be acceptable. Alternate bottom forms shall be reviewed with the COR prior to use.

The formwork shall be installed at the depth in accordance with the manufacturer’s formula. The depth shall be approved by the COR prior to any formwork.

All forms shall be completed prior to the application of any PUF. The Contractor shall provide the COR with the installed depth to bottom forms for PUF closures. Any breach in the form caused by rock fall or other reason shall be repaired prior to the application of

PUF. The Contractor shall be responsible for the integrity of the form and the loss of any polyurethane should it fail.

C 1.3 Portal closures with Wildlife-friendly Gates, raised air-grates and Cupolas

This work will consist of fabricating and installing a special gate consisting of steel bars with an inset series of gaps to allow for bat ingress and egress while excluding public access.

When work is being performed on shafts or adits with winzes (internal vertical shafts) workers must wear personal protective fall protection equipment including: a harness system and necessary attachments that meet OSHA fall protection requirements.

C 1.4.1 Materials

Gates shall at a minimum consist of:

• 4-inch x 3/8-inch steel angle iron for horizontal bars

• 6-inch x 3/8-inch steel angle iron for horizontal bar hangers

• 4-inch by 3/8-inch steel square tubing for gate columns

• 4-inch by 1/4-inch flat bar for bracing

• Rebar metric Size 25 or Standard #8

• structural steel channel iron, 6-inch by 10.5 pound per foot (lb/ft)

• be constructed of structural steel that conforms to the requirements of ASTM A-

36 (all-purpose steel) or ASTM A276 (stainless steel); or better.

Structural “I” Beam

• be constructed of structural steel that conforms to the requirements of ASTM A36

/ A572 Gr. 50, the standard specification for steel structural shapes for use in general construction.

SECTION D--SPECIAL CONTRACT REQUIREMENTS

D 1.0 Work Hours

Unless otherwise specified in Section C, Specifications, work hours under this contract shall be limited to the time between sunrise to 30 minutes before sunset each day. No work will be done on Saturday, Sunday, or legal National Holidays unless authorized by the COR.

D 2.0 Environmental Interruption of Work

The Contracting Officer, by issuance of a suspend work order, may direct the Contractor to shut down any work that may be subject to damage due to weather conditions, fire danger, or because it is impracticable to work during the winter season. The Contractor will be given a resume work order, which will document the date the work suspension ends. An allowance has been included in the contract time for all environmental delays.

The number of days in contract time will therefore continue during all periods of suspension due to normal weather conditions, including fire danger. The Contractor will not be entitled to additional contract time for any suspensions except to the extent that they are due to unusually severe weather conditions. The Contractor will not be entitled to additional monetary compensation for such suspensions regardless of duration.

D 3.0 Key Personnel

The Contractor shall assign to this contract a person or persons identified in their technical proposal that shall be the Contractor Representative, Superintendent/ Foreman, and are responsible for quality control.

The Contractor shall be responsible for providing and maintaining a safe working environment in accordance with all applicable Department of Labor, national consensus standards (including supplements) and the Hearing Conservation Program. Before beginning work at the site the Contractor shall be responsible for thoroughly investigating surface and underground site conditions where workers may encounter health and safety hazards, and scheduling and directing his equipment, equipment operations, personnel and safety procedures to prevent accidents and injuries.

D 3.0.1 Contractor Representative

The Contractor Representative shall have full authority to act for the Contractor on all contract matters relating to daily operations of this contract.

D 3.0.2 Superintendent/Foreman

The Contractor shall designate a superintendent/foreman for work performed under this contract.

D 3.0.3 Availability of Key Personnel

Either the Contractor or Contractor Representative shall be available, during normal business hours, in order to meet on the project area with Government CO and/or the COR to discuss potential problem areas.

D 4.0 Fire Prevention

The BLM – Redding Field Office, in its sole discretion, may change the predicted activity level if the current fire suppression situation, weather and vegetation conditions warrant adjustment. The contractor shall take all steps necessary to prevent his/her employees, subcontractors and their employees from setting fires not required in completion of the contract, shall be responsible for preventing the escape of fires set directly or indirectly because of contract operations and shall extinguish all such fires which may escape. It is advisable for the contractor to have a fire watch on duty during all metal cutting and welding activities.

D 4.1 Fire Restrictions

The Contractor shall comply with Federal Fire Prevention Regulations and State of

California Special Fire Orders applicable to the area. Depending on weather conditions, the Contractor shall be restricted from performing certain operations such as welding or cutting. A copy of these fire restrictions may be obtained upon request at the local BLM

Office.

D 4.2 Contractor-Caused Fires

The Contractor, whether or not directed by the BLM, shall immediately extinguish, without expense to the Government, all fires on or in the vicinity of the project which are caused by Contractor's employees, whether set directly or indirectly as a result of

Contractor operations. The Contractor may be held liable for all damages and costs of additional labor, subsistence, equipment, supplies, and transportation resulting from fires set or caused by the Contractor's employees or resulting from contract operations.

D 4.3 Other Fires

For the purpose of fighting forest fires on or in the vicinity of the project which are not caused by the Contractor or his employees, the Contractor when requested by the Fire

Control Officer shall place his employees and equipment temporarily at the disposal of the BLM. Payment for such services will be made by the Government at not less than the current rate for fire-fighting services established by the BLM in the area concerned.

D 4.3.1 Employee Release

Any employees and equipment furnished will be relieved from fire-fighting as soon as the BLM finds that it is practicable to employ other labor and equipment adequate for the protection of the area.

D 4.4 Spark Arresters

Each internal combustion engine shall be provided with a spark arrester or spark arresting device approved by the BLM. Exceptions where the BLM may approve mufflers or other equipment in lieu of spark arresters qualified are: (a) small multi-position engines, such as chainsaws, shall meet Society of Automotive Engineers J335b standards; (b) passenger-carrying vehicles and light trucks may have baffle-type mufflers with tail pipe;

(c) heavy-duty trucks may have a vertical stack exhaust system and muffler, provided the exhaust stack extends above the cab of the vehicle. An exhaust-driven turbocharger is considered to be a satisfactory spark arrester. Internal combustion engine exhaust systems, arresters, and other devices must be properly installed and maintained.

D 4.5 Power saws

For each power saw used in connection with this contract, the following will be provided:

Any fueling or refueling of a power saw shall only be done in an area which has first been cleared or is free of all material capable of carrying fire; power saw shall be moved at least 10 feet from place of fueling before starting.

D 4.6 Smoking

Smoking shall not be permitted within the contract area except on surfaced or dirt roads, at landings, within closed vehicles, in camps, or at other posted places, and shall never be allowed while working or traveling on foot.

D 4.7 Storage of Fuel and Flammable Products

Gasoline, oil, grease, or other highly flammable material will be stored either in a separate building used exclusively for such storage, or at a site where all combustible debris and vegetation is cleared away within a radius of 25 feet. Fire extinguishers and/or sand barrels may be required at such locations specified by the BLM when unusually hazardous conditions exist.

D 4.8 Welding

Welding or use of cutting torches will be permitted only in areas that have been cleared or are free of all material capable of carrying fire. Flammable debris and vegetation must be removed from within a minimum of 10 feet radius of all welding and cutting torch operations. A shovel and a 5-gallon standard backpack water container (filled) with hand pump attached shall be immediately available for use in the event of a fire start.

D 5.0 Preservation of Pre-Historic, Historic and Archeological Data

Public Law 93-291, May 24, 1974, provides for the preservation of scientific, prehistorical, and archeological data (including relics and specimens) which might otherwise be lost due to alteration of the terrain as a result of any Federal project.

The Contractor agrees that should any contractor employee, in the performance of this contract, discover evidence of possible scientific, prehistorical, historical, or archeological data the contractor will stop work and notify the COR immediately by phone.

D 6.0 Drawings

Drawings which appear in this package may are to be used by the contractor when developing a final product. Accordingly, measurements and dimensions should also be provided by the contractor.

D 7.0 Conferences and Meetings

D 7.1 Pre-work Conference

Prior to commencement of work, the Contractor shall attend a pre-work conference call to discuss the contract terms, work performance requirements, and safety. Also at this meeting such items as work progress schedule, quality control, camping/worksite plan, and fire prevention plans shall be finalized in writing.

D 7.2 Performance Evaluation Meetings

The CO may require the contract manager to meet with the CO, COR and other

Government personnel as deemed necessary. The Contractor may request a meeting with the CO when the Contractor believes such a meeting is necessary. Written minutes of any such meetings shall be recorded by the Government in the contract file and signed by the contract manager and the CO or contract administrator. If the Contractor does not concur with any portion of the minutes, much non-concurrence shall be provided in writing to the CO within 10 calendar days following receipt of the minutes.

D 8.0 Camping and Worksite Conditions

D 8.1 Camping and Worksite Plan

The Contractor shall provide a general plan with the technical proposal and shall provide a more specific plan based on items awarded, prior to start work. The Contractor shall be aware of and abide by local BLM camping rules.

D 9.0 Compliance with Applicable Laws

All activities conducted under this contract must conform to all applicable Federal, State and Local environmental standards.

In the event environmental laws/regulations/requirements change during the term of this contract, the Contractor shall comply with such law/regulation as changed. If there is an increase or decrease in cost as a result of the change, the Contractor shall immediately inform the CO for possible modification of the contract.

D. 10.0 Hazardous Waste

The Contractor shall manage and dispose of all hazardous waste derived from any work performed under this contract. The hazardous waste shall not be stored on Government property. Federal regulatory requirements include the Resource Conservation and

Recovery Act (40 CFR 260- 279) and OSHA worker protection (29 CFR 1910.120).

If the Contractor spills or releases any substance listed in 40 CFR 302 into the environment, the Contractor shall immediately report the incident to the COR. The

Contractor shall be liable for any costs associated with the spill or release of such substances.

D 11.0 Wildlife

The Contractor at all times shall take appropriate measures to protect wildlife from threat or harm. The Contractor’s employees shall not harass or intentionally cause harm to any wildlife encountered during the activities covered by this contract. Specifically:

• Contractor’s employees shall not feed animals.

• All trash and debris (especially edible trash) shall be contained in such a way as to prevent the intrusion of animals and all trash shall be removed from public lands at the end of each shift.

• Equipment shall be operated in a safe and reasonable manner to prevent injury to animals crossing haul roads or traversing work areas.

• Features that have a gate prescribed shall have an internal inspection performed prior to the installation to ensure that desert tortoise are not residing inside at the time of installation.

D 12.0 Threatened or Endangered Species.

• The Contractor shall notify BLM of the construction start date.

• The project area is within the Northern Spotted Owl habitat. A seasonal restriction for project activities may be implemented during the breeding and nesting season to protect the owls during this sensitive period.

• No activities that result in loud and continuous noise, above ambient levels for more than 2-hours at a time, and smoke generating actions shall occur from 2/1 to 7/9 within

0.25 mile of a nest, or un-surveyed suitable habitat.

D 13.0 Contract References

It is recognized that in conjunction with many tasks set forth therein, reference is made to

United States Department of Interior, Bureau of Land Management, and other directives, instructions and other guidance. It is also recognized that because these documents are written for Government personnel, they may contain language that indicates performance is to be by Government personnel. Whenever such guidance is referenced, the Contractor is to use such references as direction (coded mandatory) or suggested guidance (coded advisory) as appropriate in the performance of the required duties set forth herein and in other sections of the SOW as if such references had been written toward performance by

Contractor personnel.

D 13.1 Conflicting References.

Should there be a conflict between or among two or more such references, those coded as mandatory by the contract shall have precedence over those coded advisory; between or among those similarly coded, those issued by a higher authority shall control over those issued by a lower authority; and between or among or among those issued at the same level of authority, those with a later date of issue shall control over those with earlier dates of issue.

D 13.2Government Authority.

Any duty set forth in the cited references which shall call for the exercise of non-delegable discretionary governmental authority shall be subject to the final approval of the Government official having such authority, notwithstanding that the Contractor may be required thereby to perform duties and render advice at a level below such final approval.

Appendix 1 - Drawing and picture of a Wildlife-friendly Bat Gate

Appendix 2 – Drawing and picture of an adit backfill & adit foam (PUF) backfill

Appendix E – Pictures