5-Kenilworth Mine Fire RFSQ Master.pdf

REQUEST FOR STATEMENTS OF QUALIFICATIONS

KENILWORTH MINE FIRE PROJECT

Carbon County, Utah

UTAH DIVISION OF OIL, GAS & MINING

Abandoned Mine Reclamation Program

Table of Contents

REQUEST FOR STATEMENTS OF QUALIFICATIONS

PURPOSE

ADMINISTRATIVE GUIDANCE

STATEMENT OF QUALIFICATIONS PREPARATION INSTRUCTIONS

STATEMENT EVALUATION

COST PROPOSAL NOT REQUESTED

CONSIDERATION OF STATEMENTS OF QUALIFICATIONS

DETAILED WORK PLAN

SAMPLE CONTRACT

TERM OF CONTRACT

STATE OF UTAH CONTRACT

ATTACHMENT A: STANDARD TERMS AND CONDITIONS FOR GOODS AND/OR SERVICES

ATTACHMENT B: SCOPE OF WORK

B.1 PROJECT DESCRIPTION

B.1.1 INTRODUCTION

B.1.2 PROJECT BACKGROUND

B.1.3 PROJECT SETTING

B.1.4 LOCATION MAPS

B.1.5 EMERGENCY ABATEMENT PHOTOS

B.1.6 SEISMICITY MAP

B.2 THE WORK

B.2.1 PROJECT MANAGEMENT

B.2.2 MEETINGS

B.2.3 LANDOWNER ACCESS AND WATER RIGHTS

B.2.4 PERMITTING/APPLICATIONS

B.3 LITERATURE REVIEW

B.4 FIELD INVESTIGATIONS

B.4.1 PHASE I INVESTIGATION APPROACH

B.4.2 PHASE II INVESTIGATION APPROACH

B.4.3 PROJECT MAPS

B.5 CUTURAL/HISTORIC SURVEY

B.6 ENGINEERING AND DESIGN

B.6.1 COST ESTIMATE

B.6.2 ENGINEERING REPORT

B.7 BID-READY CONSTRUCTION SPECIFICATIONS

B.7.1 GENERAL TECHNICAL SPECIFICATIONS

B.7.2 SITE-SPECIFIC CONSTRUCTION SPECIFICATIONS

B.7.3 BID DOCUMENTS

B.7.4 DESIGN DRAWINGS

B.7.5 PROJECT MAPS

B.8 ENGINEERING SUPPORT FOR CONSTRUCTION PROCUREMENT

B.9 CONSTRUCTION PROJECT MANAGEMENT

B.10 EXCLUDED SERVICES

B.11 PERSONNEL QUALIFICATIONS

B.12 SPECIAL PRECAUTIONS

ATTACHMENT C: DELIVERABLES SCHEDULE

C.1 LIST OF DELIVERABLES

C.2 DELIVERY SCHEDULE FOR DRAFTS AND FINAL COPIES

ATTACHMENT D: COST SCHEDULE

D.1 COMPENSATION

D.2 PRICE REDUCTION FOR DEFECTIVE COST OR PRICING DATA

D.3 SUBMISSION OF REPORTS FOR PAYMENT

D.4 PAYMENT

D.5 ACTUAL ALLOWABLE COST

D.5.1 DIRECT LABOR COST

D.5.2 LABOR CATEGORIES

D.5.3 EXPERIENCE/QUALIFICATIONS SUBSTITUTIONS

D.5.4 LABOR RATES

D.5.5 OTHER DIRECT COSTS

D.6. UNALLOWABLE COSTS

D.7 BUDGET SHEETS

ATTACHMENT E: TIME SCHEDULE

E.1 PROJECT SCHEDULE

E.2 LIQUIDATED DAMAGES

ATTACHMENT F: SERVICES AND FACILITIES PROVIDED BY OWNER

REQUEST FOR STATEMENTS OF QUALIFICATIONS

For Abandoned Mine Reclamation Program Reclamation Engineering and Design

Kenilworth Mine Fire

PURPOSE

The purpose of this Request for Statements of Qualifications (REQUEST) is to procure qualified professional engineering services for the Utah Division of Oil, Gas and Mining, Abandoned Mine Reclamation Program, hereinafter referred to as OWNER. The services include evaluation of an abandoned mine project area, the associated public safety and environmental hazards, and reclamation designs to mitigate those hazards. A firm submitting a Statement of Qualifications (STATEMENT) will hereinafter be referred to as VENDOR.

This REQUEST solicits engineering services for the Kenilworth Mine Fire Project in Carbon County, Utah.

VENDORs should ensure they have the capacity to complete the project before the deadline. All deliverables for the project are due October 1, 2027.

All work shall be performed by or under the direct supervision of a professional engineer (PE) registered in the State of Utah with a PE license in civil or mining engineering (see section B.11).

This work is funded through the U.S. Office of Surface Mining Reclamation and Enforcement and the State of Utah.

Award of contract and authorization to perform the work are subject to the availability of funds.

ADMINISTRATIVE GUIDANCE

The following sections are designed to provide VENDORs with sufficient information to prepare a proposal that meets the minimum requirements necessary to properly respond to this REQUEST. This guidance is not intended to limit the content of, or exclude any relevant or essential data from, VENDOR’s STATEMENT. VENDORs are encouraged to improve and/or update OWNER’s suggested methods for evaluation and reclamation design.

STATEMENT OF QUALIFICATIONS PREPARATION INSTRUCTIONS

The Statement of Qualifications (STATEMENT) should contain the information required and be organized as described below. STATEMENTs in nonstandard formats will not be evaluated. Pertinent supplemental information should be referenced and included as attachments.

The STATEMENT should be formatted using these headings:

COVER SHEET

FIELD INVESTIGATION

CULTURAL/HISTORIC SURVEY AND REPORTS

ENGINEERING AND DESIGN

BID-READY CONSTRUCTION SPECIFICATIONS

MAPPING, SURVEYING, AND GIS SERVICES

EXAMPLES OF PREVIOUS WORK

COVER SHEET:

Include the project name, solicitation number, VENDOR’s name, address, telephone number, email address, and the name of the person to be contacted in connection with this STATEMENT.

FIELD INVESTIGATION

CULTURAL/HISTORIC SURVEY

ENGINEERING AND DESIGN

BID-READY CONSTRUCTION SPECIFICATIONS

CONSTRUCTION MANAGEMENT

MAPPING, SURVEYING AND GIS SERVICES

For each of these six sections, include a general but complete narrative overview of VENDOR=s assessment of the work to be performed and ability to perform the work. Each section should clearly demonstrate VENDOR=s understanding of the desired product and how they can provide that product. VENDORs must show that they understand the scope and importance of each individual task. A mere repetition of the tasks taken from OWNER’s scope of work will not be considered responsive to the REQUEST.

The STATEMENT should describe or list previous work that demonstrates VENDOR=s ability to perform the work discussed under each of the six headings. Emphasis should be placed on previous work most closely related to that required by this REQUEST. The description should be sufficient to show VENDOR’s experience and qualifications. Resumes or synopses of qualifications and experience of VENDOR and key personnel may be included in these sections. Limit resumes to those people to be assigned to the project. It is not necessary to reproduce lengthy curricula vitae or project lists if they will not aid in evaluation of the STATEMENT.

EXAMPLES OF PREVIOUS WORK:

This section contains examples of previous work that are relevant and will aid in the evaluation of VENDOR’s ability to perform the work outlined in this REQUEST.

STATEMENT EVALUATION

OWNER’s Ranking Committee will review, evaluate, and rank all STATEMENTs using the criteria below. Each of the evaluation criteria must be addressed in the STATEMENT. Each criterion will be given a score ranging from zero to five with five being the highest score possible. Each score will then be multiplied by the appropriate weighting factor to determine the total number of points earned (see the evaluation score sheet attached to this solicitation).

Rating points will be assigned as follows:

0 = Fail: the STATEMENT fails to address the requirements or criteria described in the REQUEST or cannot be assessed due to missing information 1 = Poor: the STATEMENT inadequately addresses the requirements or criteria described in the REQUEST or cannot be assessed due to incomplete information 2 = Unsatisfactory: the STATEMENT addresses the requirements or criteria described in the REQUEST in an unsatisfactory manner 3 = Satisfactory: the STATEMENT addresses all requirements or criteria described in the REQUEST in a minimum satisfactory manner 4 = Good: the STATEMENT addresses all requirements or criteria described in the REQUEST and in some respects exceeds them 5 = Excellent: the STATEMENT addresses and exceeds all requirements or criteria described in the REQUEST

EVALUATION CRITERIA

1. Field Investigation: (20%) 135 points possible

a. STATEMENT and technical approach show an understanding of OWNER’s goals.

b. STATEMENT shows direct experience and expertise with underground coal fires and site investigation.

Understanding of safe and effective surface and subsurface exploration methods and ability to accurately delineate fire areas, subsidence, and related features.

c. Staff qualifications

2. Cultural/Historic Survey: (10%) (70 points possible)

a. STATEMENT shows an understanding of the National Historic Preservation Act (NHPA) Section 106 process as it applies to abandoned mine work in Utah.

b. Lead Archaeologist has experience or demonstrated ability to work satisfactorily with the Utah State Historic Preservation Officer (SHPO) and federal land management agency archaeologists.

c. Staff qualifications

3. Engineering and Design: (20%) (135 points possible)

a. STATEMENT shows understanding of prudent engineering design for fire abatement in underground coal seam environments.

b. STATEMENT demonstrates the capability of VENDOR to submit multiple design options, clearly stating potential benefits and drawbacks of each.

c. Staff Qualifications

4. Bid-Ready Construction Specifications: (13%) (90 points possible)

a. STATEMENT shows the ability to produce bid-ready specification packages that adhere to OWNER template/requirements.

b. Technical approach to development of specifications as defined in the Scope of Work shows a sound understanding of OWNER’s needs and the nature of the project area.

c. Staff Qualifications

5. Construction Management: (13%) (90 points possible)

a. STATEMENT demonstrates expertise in on-site supervision of the implementation of submitted designs, including the ability to make adjustments as construction progresses.

b. STATEMENT shows VENDOR has demonstrated success in completing projects within the initial time and cost constraints.

c. Staff Qualifications

6. Mapping, Surveying, and GIS Services: (10%) (70 points possible)

a. STATEMENT demonstrates an understanding of the Scope of Work in relation to mapping and GIS.

b. STATEMENT demonstrates direct experience and expertise in mapping, GIS, and ESRI ArcGIS Pro.

7. Examples of Previous Work: (13%) (90 points possible)

a. STATEMENT includes examples of fire abatement work, field investigation forms, maps, etc., cultural evaluation, and hazard assessments. Samples show capability to perform required work at the highest quality level. Product quality and media are compatible with OWNER’s needs and hardware and software capabilities.

b. Example of problem resolution demonstrates responsiveness to client requirements.

COST PROPOSAL NOT REQUESTED

Please note that cost estimates for the WORK are not required as part of this REQUEST according to current State Purchasing Code and Rule. Cost data should not be submitted as part of any STATEMENT. Formal negotiations with the successful VENDOR will include resolution of a negotiated contract price and any pertinent cost estimates for the WORK.

CONSIDERATION OF STATEMENTS OF QUALIFICATIONS

The State of Utah may select a successful VENDOR based solely on the initial STATEMENT, without any discussion of such STATEMENT. Accordingly, each initial STATEMENT should be submitted from the most favorable services standpoint. OWNER reserves the right to reject any and all STATEMENTs received.

DETAILED WORK PLAN

If selected, the VENDOR will prepare a detailed work plan for fulfilling this Scope of Work, defining key milestones and deliverables. A detailed cost estimate shall also be prepared, giving expected hours for anticipated staff and their respective billing rates. This work plan and budget will be the basis for cost negotiations prior to execution of the contract.

SAMPLE CONTRACT

The successful VENDOR will negotiate and enter a contract agreement with the Utah Division of Oil, Gas and Mining. The contract agreement will be on a form similar to the sample agency contract attached below. For VENDOR’s STATEMENT to qualify for evaluation, the VENDOR must be able to meet all requirements of this contract.

TERM OF CONTRACT

Notice to Proceed with the project will be issued immediately upon the award and execution of the contract. The contract term will be for a standard period of five years; however the deadline for Phase I and II deliverables is November 30, 2026.

STATE OF UTAH CONTRACT

1. CONTRACTING PARTIES: This contract is between the following agency of the State of Utah:

Department Name: Natural Resources Agency Code: 560 Division Name: Oil, Gas and Mining , referred to as State Entity, and the following Contractor:

Name

Address

City State Zip

LEGAL STATUS OF CONTRACTOR

□ Sole Proprietor

□ Non-Profit Corporation

□ For-Profit Corporation

□ Partnership

□ Government Agency

Contact Person: Phone #: Email:

Vendor #: Commodity Code #

2. GENERAL PURPOSE OF CONTRACT: The general purpose of this contract is to provide: Professional engineering expertise in evaluating an abandoned mine project area for reclamation known as the Kenilworth Mine Fire Project.

3. PROCUREMENT: This contract is entered into as a result of the Solicitation RQM# , Solicitation Number , Solicitation Type .

4. CONTRACT PERIOD: Effective Date: Termination Date: unless terminated early or extended in accordance with the terms and conditions of this contract. Renewal options (if any): none .

5. CONTRACT COSTS: CONTRACTOR will be paid a maximum of $ for costs authorized by this contract. Prompt Payment Discount (if any): . Price Guarantee Period (if any): . Additional information regarding costs: .

6. ATTACHMENT A: State of Utah Standard Terms and Conditions for Goods and Services

ATTACHMENT B: Scope of Work ATTACHMENT C: Deliverables Schedule ATTACHMENT D: Cost Schedule ATTACHMENT E: Time Schedule ATTACHMENT F: Services and Facilities Provided by Owner ATTACHMENT G: Other Related Tasks Outside Kenilworth Mine Fire Project Area

Any conflicts between Attachment A and other Attachments will be resolved in favor of Attachment A.

7. DOCUMENTS INCORPORATED INTO THIS CONTRACT BY REFERENCE BUT NOT ATTACHED:

a. All other governmental laws, regulations, or actions applicable to the goods and/or services authorized by this contract.

b. Utah State Procurement Code, Procurement Rules, the Solicitation, and Contractor’s response to the Solicitation.

8. Each person signing this Agreement represents and warrants that he/she is duly authorized and has legal capacity to execute and deliver this Agreement and bind the parties hereto. Each signatory represents and warrants to the other that the execution and delivery of the Agreement and the performance of each party’s obligations hereunder have been duly authorized and that the Agreement is a valid and legal agreement binding on the parties and enforceable in accordance with its terms. Further, that Contractor is registered with the Utah Department of Commerce and is in good standing.

Utah Division of Oil, Gas & Mining and [***Contractor Name] Contract #

The parties sign and cause this contract to be executed. This contract is not fully executed until the State of Utah Approving Authorities have signed this contract.

CONTRACTOR

Contractor's signature Date

Type or Print Name and Title

STATE ENTITY

DIVISION OF OIL, GAS & MINING

Steve Fluke AMRP Administrator

Date Dana Dean DOGM Deputy Director, Mining

Date

Eric Hyatt DOGM Budget Officer

Date Mick Thomas DOGM Director

Date

STATE OF UTAH APPROVING AUTHORITIES

Director, Division of Purchasing Date

Agency Contact Person Telephone Number Email

ATTACHMENT A: STANDARD TERMS AND CONDITIONS FOR GOODS AND/OR

SERVICES

ATTACHMENT B: SCOPE OF WORK

The VENDOR will prepare a detailed Work Plan, elaborating on this SCOPE OF WORK and defining key milestones and deliverables.

B.1 PROJECT DESCRIPTION

B.1.1 INTRODUCTION

The Kenilworth Mine Fire Project, located in Carbon County, Utah, addresses the Kenilworth coal mine site to the northeast of the city of Price, in the Book Cliffs.

B.1.2 PROJECT BACKGROUND

The Kenilworth Mine Fire project (the Project) is located approximately 0.4 miles northwest of the town of Kenilworth, and near to the town of Helper, in Carbon County, Utah. The mine itself was worked historically, beginning in 1892, continuing across several coal seams until the mine was closed permanently in 1972. Coal extraction took place in the 22.5-foot-thick Aberdeen coal seam and was later expanded to the overlying 6-10 foot-thick Royal Blue seam, and finally into the 16-18 foot-thick Kenilworth seam. During its operation, several large structures were constructed to aid in mining, most notably the 2000-foot-long tramway, the footprint of which can be seen today, just above and northeast of the Kenilworth Ballpark. Today, following the general path of the tramway by foot is presumed to be the least difficult access to the site.

In 2021, the Utah Abandoned Mine Reclamation Program (AMRP) was made aware of possible combustion of underground, in-situ or mined coal atop what is now referred to as the “west bench”. The Kenilworth mine was included in a fire monitoring program initiated by AMRP and carried out by Tetra Tech (Denver, CO). Upon further assessment, abatement of the fire was deemed to be unnecessary, as it was unlikely to spread to surface vegetation, smoke output was low, and the rugged terrain discouraged visitation to the site. The fire is presumed to have started by spontaneous combustion of shallow coal left within the mine. Historic documents from the Kenilworth Mine show that workers had encountered swaths of burned-out coal during mining operations, suggesting that fires within the seam have occurred naturally in the past.

On August 16, 2024, citizens of Kenilworth reported a significant increase in smoke volume originating from the west bench to the Utah Division of Forestry, Fire, and State Lands (FFSL). FFSL performed an aerial UAV survey of the west bench and found that a relatively large subsidence hole had emerged and was outputting a substantial volume of (primarily) steam. FFSL management relayed this information to the AMRP, and a plan to investigate the new subsidence was formulated.

On August 20, 2024, a small team of AMRP and FFSL employees was flown by helicopter to a nearby ridge above the west bench to investigate the subsidence and to cull vegetation around it to prevent the fire from spreading to the immediate surroundings. The subsidence measured approximately 8-feet by 11-feet, and 20-feet deep.

Conditions around the fire were documented by AMRP and work to declare the fire an emergency with the Office of Surface Mining Reclamation and Enforcement (OSMRE) began. The Utah Department of Natural Resources authorized the procurement of emergency engineering services on September 8th, 2024, and an AML emergency was declared by OSMRE on November 7th, 2024.

Between September and November 2024, emergency engineering services to characterize the fire were executed by Brierley Associates (Denver, CO). During this period, locations of possible ventilation points, subsidence holes, mine portals, hotspots, or other features related to the fire were documented. These features were classified primarily by their likelihood of feeding oxygen to the underground mine workings, mapped, and integrated into the emergency fire abatement plan. Sealed-canister gas samples were collected from several vents and analyzed at the University of California Irvine Gas Chromatography Laboratory. Gas sampling results showed combustion products which indicated coal combustion at temperatures as high as 800°C to 900°C (1472°F to 1652°F).

During November and December 2024, emergency construction to seal the known mine features was undertaken.

The 5 Seventeen Company (Kamas, UT) was contracted to perform construction activities. Blackfox Mining LLC (Nederland, CO) was contracted to develop and implement a health and safety plan for fire abatement work, especially in hazardous environments like the west bench area. All key personnel working on the west bench participated in an intensive training program to utilize a closed-circuit breathing apparatus (CCBA) during work (if needed), as well as to operate in low-visibility, smoky environments. Atmospheric conditions were monitored continuously during work and if safe limits were exceeded, workers were relocated or outfitted in a CCBA to continue work. Ventilation points were sealed according to an “outside-in” strategy, where fractures or mine openings further away from the west bench subsidence were sealed first in an attempt to reduce hazardous smoke and gaseous emissions from the main subsidence before undertaking work on the west bench. Features were sealed using a high-expansion two-component urea-silicate foam, Geofoam® manufactured by Minova USA Inc.

(Georgetown, KY).

By December 9th, 2024, smoke output from the main subsidence had reduced by an estimated 50% as a result of sealing features farther away. Due to the notable improvement in air quality, it was deemed safe to proceed to the west bench for sealing. Between December 9 and December 13, 2024, all known intake or vent features were sealed on the west bench, including the main vent. The main vent was sealed on December 11, 2024, and took an expanded foam volume of approximately 300 cubic yards (1700 gallons at a 35:1 expansion ratio). Heat from coal combustion provided favorable conditions for foam expansion, so this method was found to be highly effective.

As of December 2025, no smoke or gas plumes have been reported from the west bench, and the rigid-set foam has withstood heat and presumed pressure build up from beneath the plug(s). While the sealing of mine features was effective at eliminating smoke output from the west bench, subsurface combustion is expected to continue, albeit at a reduced intensity. Mined and unmined areas of the Kenilworth, Royal Blue, and Aberdeen seams are at risk of continuing to burn, which, if allowed, will compound the risk of new subsidence openings—potentially in locations that are infeasible to address in the future. As such, the objective of this request is to address or perform the tasks outlined in sections B.2.

B.1.3 PROJECT SETTING

The project lies in the Book Cliffs, Utah, within the Colorado Plateau physiographic province. The Book Cliffs are generally comprised of upper Cretaceous sandstone cliffs flanking the Uinta Basin to the north, and the San Rafael Swell to the south. The primary geologic unit in the project area is the Blackhawk formation, composed of interbedded shale and sandstone, and hosts numerous coal seams that have been exploited historically. Three distinct coal seams lie within the project area, the Aberdeen seam, the Royal Blue seam, and the Kenilworth seam.

The Aberdeen and Royal Blue seams are currently burning near their southernmost outcrops located on the west bench, whereas the bulk of the Kenilworth seam lies further north, and is stratigraphically higher.

The mines operated within their respective coal seams are thought to be interconnected to some degree, and thus mine portals or other openings into one seam may be relevant ventilation accesses to another. The Castle Gate No. 2 portal, for example, is located approximately three miles northwest of the west bench, and was demonstrated to be intaking a significant volume of air to the burning area. During investigation and emergency abatement work in late 2024, 21 mine features were identified on the west bench, four features just to the east (east bench), and six more were located outside of these areas.

Access to the west bench is extremely limited, primarily due to the cliff-forming Blackhawk Formation sandstone units that encircle the work zone. The site has been accessed by helicopter drop-off to an overlooking ridge and down-hiking to the site, or by cross-country hiking along the historic tramway footprint. Aerial imagery and on-site observations have shown possible alternatives for accessing the site, but none have been confirmed as viable access so far. Routine access via helicopter will be impractical for engineering work, so access improvements to the tramway route or other pedestrian routes will likely be needed during the engineering phase of the project.

In addition to engineering or geological work needed to design an abatement strategy, a full cultural survey will need to be undertaken in areas where ground-disturbing work will be performed. Access constraints for this survey will also need to be considered, and snow coverage in these areas will further limit the timing of investigation work.

During abatement work in 2024, on-site cultural monitoring was utilized in lieu of a formal pre-construction survey.

After emergency abatement work in 2024, a sharp increase in low-magnitude seismicity was observed in the Kenilworth project area. Between December 2024 and February 2025, approximately 144 MW 1.0 to MW 2.5 earthquakes were recorded within the immediate vicinity of the Kenilworth Mine (Figure 10). Of these 144 seismic events, approximately 108 originated at a depth higher than mean sea level (MSL), and 74 occurred at depths between 1.5 km and 3.5 km above MSL. These earthquakes are thought to be mine “bumps”, which are small seismic disturbances, usually as a result of roof or pillar failures within a mine. Shallow seismicity may be important to understanding the effects of the fire on existing underground workings, and the dynamics of performing abatement work. Furthermore, roof and pillar failures could result in higher subsidence occurrences on the ground surface overlying collapsed areas of the mine. Shallow seismicity in the area has continued throughout 2026 at a subdued intensity.

B.1.4 LOCATION MAPS

FIGURE 1 – LOCATION MAP

FIGURE 2 – DETAILED LOCATION MAP

FIGURE 3 – HISTORIC MINE MAPS

FIGURE 4 – WEST BENCH FEATURES

B.1.5 EMERGENCY ABATEMENT PHOTOS

FIGURE 5 – WEST BENCH AERIAL PHOTOGRAPH

FIGURE 6 – MAIN VENT, AUGUST 2024

FIGURE 7 – MAIN VENT AERIAL, NOVEMBER 2024

FIGURE 8 – FOAM SEALING OF FIRE FEATURES

FIGURE 9 – MAIN VENT AFTER SEALING, DECEMBER 2024

B.1.6 SEISMICITY MAP

FIGURE 10 – KENWILWORTH AREA EARTHQUAKES, POST EMERGENCY ABATEMENT

B.2 THE WORK

The primary objectives of this WORK are:

• Delineate the extent of the underground coal mine fire.

• Characterize and determine the extent of burned, currently burning, and unburned coal through geophysical investigations and, if necessary, core drilling to confirm the geophysical investigations and geology.

• Produce report(s) of investigation describing the extent and status of the underground fire. The reports should provide fire abatement options with rough cost estimates, known uncertainties, and likelihood of success.

• Engineer and design a fire abatement plan for extinguishment of the fire using a 30/60/90% approach.

• Produce construction-ready specifications for bidding purposes to select a contractor to conduct the mitigation work.

• Provide full-time oversight and inspection, and engineering as needed, for the fire abatement construction.

The WORK to be performed is described in the following tasks: (1) literature review, (2) field investigation, (3) cultural/historic inventory and survey, (4) engineering and fire mitigation design, (5) prepare a bid-ready construction specification package, (6) construction procurement support, (7) construction management. Detailed requirements for each task are presented in sections B.3, B.4, B.5, B.6, B.7, B.8 and B.9.

B.2.1 PROJECT MANAGEMENT

Project management will include preparation of the project schedule, invoices, progress reports, final close-out reports, and coordination/interaction with the OWNER project manager. This task also includes overseeing and managing internal operations to ensure compliance with the terms of the contract with respect to staffing, time and financial budgets and accounting, productivity, reporting requirements, etc. Key project management milestones should be included in the project schedule portion of the Work Plan.

B.2.2 MEETINGS

VENDOR should be prepared to attend several meetings during the fire site investigation and during design of the subsequent fire abatement tasks. Examples of these include an onsite kickoff meeting with OWNER and other project stakeholders at the beginning of the project, and office and site meetings during the site surveys and engineering planning. Any additional meetings foreseen by the VENDOR should be identified in their Work Plan.

B.2.3 LANDOWNER ACCESS AND WATER RIGHTS

The primary project area (west bench) is located on private land, however adjacent land parcels are managed by a combination of Bureau of Land Management (BLM), Carbon County, and separate private owners. OWNER has a standing relationship with some landowners in the area, and it is anticipated that access to the west bench will remain open for the duration of work. OWNER will secure access rights to the private and federal property for drilling, construction, and any other ground-disturbing activities. OWNER does not believe that water will be impacted by work at this site; however, VENDOR will identify all nearby surface and underground water rights and determine possible impacts by the project tasks in the Work Plan.

B.2.4 PERMITTING/APPLICATIONS

VENDOR will identify all necessary permits and applications required for this project in the Work Plan.

B.3 LITERATURE REVIEW

VENDOR shall review and assimilate all forms, examples, and templates supplied by OWNER prior to beginning field tasks and utilize them for the WORK, if needed.

VENDOR shall conduct a thorough literature search for information pertaining to abandoned mines within the project area. The literature search will include but not be limited to Bulletins and Circulars of the Utah Geological

Survey (UGS), United States Geological Survey (USGS), and United States Bureau of Mines (USBM), Utah Mineral Occurrence System database, Mineral Resources Data System database, Bureau of Land Management (BLM) files, and 7.5-minute USGS topographic maps. VENDOR shall be aware that although available literature lists many of the abandoned mine sites in the project areas, other unrecorded mines do exist.

B.4 FIELD INVESTIGATIONS

The project area in its entirety may be comparable to the combined footprint of the Kenilworth, Aberdeen, and Royal Blue mines. Areas affected by subsurface combustion are expected to be highly localized within these seams, and so it is unlikely that an exhaustive survey of the entire project area will be needed. However, due to the unpredictable nature of underground coal fires, the area of interest may expand or contract dramatically as field studies progress. For this reason, VENDOR should approach field investigations strategically, identifying points of interest through careful desktop study prior to engaging in field tasks.

The field investigation should be undertaken in two phases. Phase I will consist of an initial, non-disturbing investigation to characterize the fire and make recommendations for a more thorough Phase II investigation. The approach for the Phase II investigation will then be selected based on viability of equipment access and data acquisition needs. Phase II will be focused on subsurface investigation, monitoring, and characterization of the areas affected by coal fire activity with the goal of recommending a fire abatement plan.

Drilling and/or excavation of test pits may be needed to complete this project. Drilling provides verification of strata and major coal seams, rider seams, and mine voids. Casing with thermocouples provides short- and long-term monitoring. Geotechnical laboratory analysis of core samples (slake, strength testing, RQD tabulation) may also be useful for informing abatement procedures e.g. grout, foam, or nitrogen injection, and/or collapse by mechanical means.

B.4.1 PHASE I INVESTIGATION APPROACH

VENDOR will perform a non-disturbing, on-the-ground inspection of the area prior to engaging in further investigation techniques in order to:

• Identify features that could be indicative of subsurface coal combustion,

• Delineate the possible extent of subsurface coal combustion,

• Assess the suitability of terrain for machinery and equipment access,

• Make recommendations for a Phase II investigation that may include subsurface data collection, monitoring, and access improvements including possible road construction.

Phase I field studies are expected by OWNER to be relatively minimal, as much of the initial site investigation work was undertaken as a part of the 2024 emergency abatement action. VENDOR should verify these data as needed, as well as identify new areas that may be relevant to the project.

OWNER has experience with several underground and surface coal mine and refuse fires and has had varying degrees of success with extinguishment. The site investigation to delineate and characterize the fire is critical to successful extinguishment. Geophysical, chemical, and thermal imaging methods have been used to identify underground mine workings, unburned, burned, and actively burning areas. Some of the geophysical data collected has been gas composition, magnetometer surveys, and surface and subsurface temperatures. P-wave seismic velocity surveys may be utilized to estimate overburden depth and rippability of bedrock units. Other methods could include ground penetrating radar, radon levels, electrical resistivity, and microgravity imaging. Drones may also be used to assist in site investigation tasks, however, as of December 2025, drones used as part of federally funded projects are subject to the Blue UAS Clear List, or “Blue List”.

OWNER is open to techniques listed above and new or different approaches to characterize the fire, including volume of burned, burning, and unburned coal; possibility of burning rider seams; thickness of the sandstone cap and overburden; and extent of underground workings.

VENDOR will propose methods that are likely to provide adequate data to characterize the site. OWNER will discuss with VENDOR and select one or more methods. VENDOR will add tasks and costs for conducting the surveys at the site to the Work Plan. Typical tasks should include equipment and staff to conduct, process, and interpret data. The findings will be presented in a Phase I Report of Investigations (ROI). The ROI will be included as a project deliverable in the Work Plan.

While photos may be incorporated into inventory data forms, they must also be delivered as individual files in JPG format with a minimum of 8-megapixel resolution.

The work product must include ESRI feature class and any additional applicable data for all notable features, provided in a geodatabase format for ESRI ArcGIS Pro.

B.4.2 PHASE II INVESTIGATION APPROACH

Phase II of the investigation should utilize the information gathered in Phase I to better characterize the extent of the fire area.

Prior to engaging in any techniques that will result in disturbance to the ground surface, VENDOR will conduct a cultural resource survey around the affected areas. The cultural resource survey requirements are discussed in section B.5.

When field tasks in Phase II are complete, VENDOR will provide a Phase II Report of Investigations (ROI) which will include a summary of work accomplished, borehole/test pit logs, monitoring data, maps, and any other data collected during Phase II work. Drawing from this information, a detailed Fire Mitigation Plan will be prepared, the requirements for which are discussed in section B.6.

B.4.3 PROJECT MAPS

VENDOR shall create maps on 8.5” x 11” sheets where practical or on 11” x 17” size at the maximum. Maps of the project area shall contain all the inventoried features and access routes. Old mine roads that are not designated for motorized use in a federal or county travel management plan must be differentiated from roads approved for motor vehicle use.

Each map block shall contain a verbal and graphic scale, north arrow, legend, and be certified by the seal of a registered professional engineer in the State of Utah with a PE license in civil or mining engineering.

OWNER requires two sets of map sheets: a map set to be included with the construction specification package and a map set to be included in the land ownership report. These two map sets shall share the same organization and scale. VENDOR shall deliver the map sets both as an ESRI ArcGIS Pro map package (.mpkx) and a set of Adobe Acrobat (.pdf) map sheets. PDF file sizes should not exceed 2 megabytes in size and should not contain PDF layers.

ESRI ArcGIS Pro map packages should contain all data sets and other elements necessary to view the complete map in ESRI software. For standard layers hosted by the Utah Geographic Reference Center, only the reference to the server is required.

B.5 CUTURAL/HISTORIC SURVEY

The VENDOR's Archeologist will meet the Secretary of the Interior’s qualifications, as well as the requirements of all land-managing agencies, and must be able to obtain all necessary fieldwork authorizations. Supervisory personnel will have experience in identifying, recording, and evaluating historic mine sites and other cultural resources. Inventory and reporting will be conducted in keeping with the Utah State Historic Preservation Officer (SHPO) and land-managing agency standards as well as OWNER’s specific requirements.

VENDOR shall research and write a historic context of the project area. The historic context document must establish the necessary context to assess the significance of the identified mining resources as well as any other documented cultural resources and determine their eligibility for the National Register of Historic Places (NRHP). It should be based on a variety of information sources including local and regional libraries and museums. The amount of work dedicated to the context will depend, in part, on whether adequate contexts for the region have already been produced. A lengthy treatise is not expected.

The Archeologist will use any previous cultural resources inventory reports as a reference, along with Mineral Surveys, USGS and UGS reports, files from the Special Collections at the University of Utah and the Utah State Historical Society, the index to the Salt Lake Mining Review, and other documentary sources as appropriate.

Each archaeological site will be recorded on a Utah Archaeology Site Form (UASF). For each site, NRHP eligibility will be recommended and potential effects discussed. Note that SHPO requires photographs of IFs as well as a description and recommendation of NR-eligibility.

All cultural sites, features, datums, and site boundaries including the Area of Potential Effect (APE) shall be located by GPS.

The results of this inventory and associated information will be presented in a separate Cultural Resources Inventory Report and associated Utah Archaeological Site Forms (UASF) along with all necessary covering documents and other materials suitable for SHPO consultation on the undertaking.

For planning purposes, the VENDOR should be aware that the OWNER wishes to plan the action to obtain a determination of No Adverse Effect to Historic Properties pursuant to NHPA, Section 106 and Utah Code 9-8-404.

The VENDOR will recommend any special treatment/protection measures recommended for a finding of No Adverse Effect.

OWNER intent in reclamation design is to be as sensitive as possible to cultural resources while still achieving the primary goal of protecting the public from abandoned mine hazards. In general, this means designing and implementing reclamation that avoids disturbance of low hazard cultural features (such as foundations) or minimizes damage to features (such as building of masonry walls to seal adits instead of backfilling). VENDOR shall evaluate a range of potential reclamation actions for each feature (including no action at low hazard features), since some actions may not be acceptable from a cultural resources standpoint.

B.6 ENGINEERING AND DESIGN

The following items are considered part of the engineering and design task:

a. Synthesis, analysis, and interpretation of field data following its collection.

b. Determination of the type of mitigation action to be performed at a feature.

c. Calculation of estimated quantities of materials, equipment, and labor for construction.

d. Calculation of estimated construction costs.

e. Design of generic and/or specific plans for mine closures, site grading and earthwork, drilling, blasting, fabrication, etc.

f. Preparation of a report documenting the methods used for the field site assessment, engineering and design, and cost estimating.

The VENDOR will engineer and design fire mitigation methods within the project area, applying accepted engineering standards and practices. In terms of sequencing, the VENDOR should complete the design in a 30%- 60%-90% phase approach, culminating in bid-ready construction specifications, design drawings, and a detailed engineer’s cost estimate. All project-specific specifications and design drawings will be stamped by a Utah licensed professional engineer.

At the 30% level, the design will include three or more options for fire mitigation with cost estimates for each option.

OWNER will select the preferred option to inform the 60% and 90% designs.

At the 60% level, the design for the chosen option will include the following: detailed mitigation plan with quantity estimates, and any plan-specific items, such as material transport to off-site location, plan for introduction of clean fill, plan for regrading, revegetation, and stream reclamation, design for stream channel stabilization and revegetation as required.

At the 90% level, the design will include detailed specifications and detailed design drawings of the following:

- Grading/earthwork plan with cut/fill calculations

- Utility, road, surface water crossings

- Grading and road maintenance schedule (if required)

- Erosion control measures

- Engineer’s stamped drawings for purpose-designed features (e.g., channel stabilization)

- Other design features as required

Additionally, the following items will have detailed specifications and detailed design drawings where needed:

- Erosion control

- Revegetation

- Material transport/haulage plan

- Site reclamation/revegetation plan

- Stream restoration plan

- Coal material disposal

B.6.1 COST ESTIMATE

The VENDOR shall provide an estimated cost to perform the mitigation. The cost estimate shall be based on unit costs derived from accepted estimating practices, as well as known prevailing local rates and historical cost data provided by OWNER. Estimated costs shall be presented as lump-sum items and broken out in the detailed cost schedules in the construction specifications. Sources or derivations of unit costs shall be explained in the engineering report.

B.6.2 ENGINEERING REPORT

VENDOR shall prepare an engineering report documenting methods used for site assessment, engineering and design, and cost estimation.

B.7 BID-READY CONSTRUCTION SPECIFICATIONS

After OWNER has approved the recommended reclamation design, VENDOR shall prepare a construction bid package based on the OWNER’s Master Specifications document and containing the following components:

General Technical Specifications Site-Specific Construction Specifications Appendix A: Feature Mitigation Schedule Bid Sheets Mitigation Drawings Project Maps

If technical deficiencies or other engineering related problems are encountered in the final product in its use during the bidding or construction process, OWNER may require further information, clarification, or verification of assumptions from VENDOR. It is expected that if such deficiencies are found, VENDOR will act to alleviate and resolve any conflicting, missing or unsubstantiated information found within the Construction Specifications at no additional cost. It is not the intent of OWNER to bind VENDOR to work that is not included as part of the WORK.

OWNER’s intent is to require VENDOR to complete the construction specifications accurately and in sufficient detail to successfully perform construction work.

B.7.1 GENERAL TECHNICAL SPECIFICATIONS

OWNER will provide a copy of General Technical Specifications to be used in the construction bid package.

Development of new Technical Specifications not included in the OWNER’s standard package shall be considered ADDITIONAL WORK and subject to the conditions of Amendments to the Agreement (Attachment A). As directed by OWNER, VENDOR shall provide any newly developed Technical Specifications in a form suitable for use in a construction bid package. General Technical Specifications shall be provided in Microsoft Word format and accompanying drawings provided as part of the Design Drawings discussed in B.7.4 below.

B.7.2 SITE-SPECIFIC CONSTRUCTION SPECIFICATIONS

Site-specific construction specifications shall include sections describing related items such as: submittals required, conditions and restrictions, quality assurance, products and materials, execution, and payment.

The construction specifications shall address, as appropriate, any special measures required to protect worker safety and health during construction. Worker safety issues include exposure to toxic materials, explosives (both abandoned explosives including misfires in the mines, and explosives used in the course of reclamation), hazardous atmospheres (methane, black damp, carbon monoxide, radon gas, airborne dust, etc.), subsidence-prone ground, fall hazards, rockfalls, mine roof support, and unstable slopes and structures, as well as normal construction area worker health, safety, and industrial hygiene issues. Protective measures may include flagging and signage, specifying supplemental roof support, requiring safety harnesses and ropes, restricting activity in certain areas, specifying clean-up and decontamination procedures, etc.

Work descriptions will cross-reference the Technical Specifications and include any adjustment of the Technical Specifications to the site-specific needs. Construction requirements will be presented in sufficient detail to reduce the need for technical interpretation of specifications during bidding or construction.

Specifications will include measurement for areas that will be disturbed by construction activities and will require revegetation. Measurement will be made in square feet or acres where appropriate. All technical revegetation information will be provided by OWNER.

B.7.3 BID DOCUMENTS

VENDOR shall prepare lump-sum bid sheets with individual mine site costs broken into logical construction units.

Include detailed cost schedules with line items & estimated quantities. Sufficient detail and accuracy will be provided to allow as many sites and items to be bid lump-sum as possible. Where indefinable quantities exist, unit price schedules will supplement the lump-sum quote for contract adjustments. Sample Bid sheets are included in the Master Specifications document.

B.7.4 DESIGN DRAWINGS

VENDOR shall provide a complete set of design drawings to be used as a component of the Construction Specification Package. Design drawings shall contain sufficient detail to clarify the scope of WORK and all construction specifications for the construction contractor.

B.7.5 PROJECT MAPS

Maps of the project area shall contain all project features, staging areas, and access routes and show sufficient detail for the contractor bidding on the project to have a clear understanding of the scope of the work. VENDOR shall prepare construction maps according to specifications in section B.4.3.

B.8 ENGINEERING SUPPORT FOR CONSTRUCTION PROCUREMENT

The VENDOR shall provide engineering expertise to assist the OWNER with construction procurement, including the following:

• Perform final review and editing to prepare bid-ready specifications

• Attend the pre-bid meeting on site to provide technical information and address questions from potential bidders

• Assist in preparation of addenda to the bid solicitation

• Assist in technical review of submitted bids, if required

B.9 CONSTRUCTION PROJECT MANAGEMENT

The VENDOR shall provide a Project Inspector to monitor the execution of reclamation construction procured by the OWNER and ensure adherence to construction standards and to the project specifications. That person will be known as the Project Inspector. The Project Inspector shall act as the OWNER’s onsite representative.

The Project Inspector shall:

• Keep accurate written records of work activity

• Keep a logged photographic record of work activity

• Cross-check and verify data provided by the construction contractor (truck logs, survey data, quantity measurements, etc.)

• Monitor safety devices and drainage control structures to see if they are functioning properly

• Inspect and approve construction materials (geotextiles, silt fence, riprap, rebar, formwork, concrete, seed, etc.) before they are installed

• Inspect and approve installation of construction materials

• Monitor and measure construction quantities for comparison against bid estimates

• Represent the OWNER onsite

• Keep the OWNER informed of project developments onsite

• Prepare SWPPP and other permit reports at the interval required

Areas of particular concern in the execution of the project include:

• Worksite and overall project safety

• Compliance with the SWPPP and any permits

• Compliance with the terms of the ROE agreements between the OWNER and the landowners

• Protection of historic or cultural resources and artifacts

• Monitoring, measurement and recording of construction quantities

• Survey and grade control

The OWNER expects to field an in-house construction inspector for most of the project duration. VENDOR’s inspector shall be used on site full-time to substitute for the OWNER’s inspector during construction activities.

OWNER and VENDOR shall coordinate scheduling to ensure adequate notice.

For budget estimating purposes, assume that the CONTRACTOR’s inspector will be needed for four one-week periods.

If the Project Inspector identifies design problems during construction, the VENDOR shall correct the problem and provide corrected designs and professional engineering advice for new issues as they arise. When such services are required as the result of the VENDOR’s oversight during the project design, deficiencies will be corrected without further cost. If unforeseeable field conditions cause the need for redesign, the VENDOR will be paid in accordance with the previously established fee schedule.

The VENDOR shall provide original signed copies of daily inspection reports. VENDOR shall provide digital photos logged and renamed according to OWNER’s photo file naming convention (see Appendix C).

VENDOR shall provide an administrative record of all activities pertaining to this task, including a log of all contacts (written, electronic, telephone) and copies of all correspondence sent and received.

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