[sheet: Cover & Summary]

Field	Value
Document Title	Closing Checklist and Index — Consent Decree and Ancillary Documents
Date Prepared	April 28, 2025
Matter Name	United States of America and State of Montana v. Torchlight Mining Corp. et al.
Civil Action No.	9:24-cv-00087-DWM
Court	U.S. District Court for the District of Montana, Missoula Division
Judge	Hon. Donald W. Molloy (Senior Judge)
C&H Matter No.	1039-00003
Lead Outside Counsel	Calderwood & Harkness LLP
Responsible Partner	Harrison Wexford
Billing Partner	Beatrice Holloway
Lead Associate	Elliot Nguyen
Working Associate	Grace Nakamura
Client	Torchlight Mining Corp. (TSX: TRC / NYSE: TRC)
Client General Counsel	Miriam Soo-Hwan Park
Client CEO	Douglas K. Prennell
Client CFO	Carolyn Bracebridge
Client VP, EHS	Gareth Linford
Defendant Entities	Torchlight Mining Corp.; Torchlight Mining (U.S.) Inc.; Torchlight Specialty Chemicals, Inc.; Ridgecrest Mine Holdings, LLC; Bonanza Creek Mining, LLC
Plaintiffs	United States (EPA/DOJ); State of Montana; State of Nevada; State of West Virginia
Consent Decree Lodging Date	February 19, 2025
Public Comment Period Close	March 21, 2025
Motion for Entry Filed	April 7, 2025
Target Court Hearing	April 28, 2025
Target Entry Date	May 15, 2025

Effective Date (per Decree § IV)	June 14, 2025 (30 days after entry)
Total Documents in Checklist	75
Total Categories	13
Grand Total Nominal Obligation	$409.9 million
Grand Total NPV (3%)	$311.5 million
Financial Assurance Total	$245.0 million
Status as of This Date	Substantially complete; pending court entry

[sheet: I. Engagement & Administration]

Item No.	Document Title	Date	Responsible Party / Drafter	Counterparty / Recipient	Format	Status	Execution Date	Filing Date	Original / Copy Location	Notes
1	Engagement Letter — Calderwood & Harkness LLP to Torchlight Mining Corp.	October 21, 2024	Calderwood & Harkness LLP (Harrison Wexford)	Torchlight Mining Corp. (Miriam Soo-Hwan Park)	docx	Executed	October 21, 2024	C&H Document Management / Matter 1039-00003	Scope: multi-site EPA compliance & consent-decree negotiation; hourly rates: Partner $1,350, Sr. Assoc. $950, Assoc. $725, Paralegal $425; fee cap $4.5M; monthly billing net-30
2	Conflict Check Memorandum	October 18, 2024	Calderwood & Harkness LLP	Internal	docx	Final	C&H Document Management	No conflicts identified; checked TMC and all U.S. subsidiaries against EPA, DOJ, state co-plaintiffs, and all third parties
3	Co-Counsel Coordination Agreement — C&H / HDW / Sagebrush / BTC	November 1, 2024	Calderwood & Harkness LLP	Holcroft, Dane & Weiss LLP; sagebrush Law Group, PLLC; Baxter, Tully & Crane PLLC	docx	Executed	November 1, 2024	C&H Document Management	Coordination protocols, lead-counsel authority, information-sharing, billing arrangements; local counsel: HDW (Montana — Russell Dane), sagebrush (Nevada — Denise Quartaro), BTC (West Virginia — Nathan Tully)
4	Litigation Hold Notice / Preservation Memorandum — C&H to TMC	October 23, 2024	Calderwood & Harkness LLP	Torchlight Mining Corp. (Miriam Soo-Hwan Park)	docx	Final — Delivered	C&H Document Management	Preservation of all documents, ESI, communications re: Ridgecrest, Gallatin, Bonanza Creek, Kanawha Bend; Civil Action No. 9:24-cv-00087-DWM
5	Staffing Memorandum and Budget Estimate	October 25, 2024	Calderwood & Harkness LLP (Harrison Wexford; Beatrice Holloway)	Internal	docx	Final	C&H Document Management	Staffing plan and projected hours by phase within $4.5M fee cap

[sheet: II. Case Assessment & Strategy]

Item No.	Document Title	Date	Responsible Party / Drafter	Counterparty / Recipient	Format	Status	Execution Date	Filing Date	Original / Copy Location	Notes
6	Preliminary Case Assessment Memorandum — All Four Sites	November 4, 2024	Calderwood & Harkness LLP	Miriam Soo-Hwan Park; Douglas K. Prennell	docx	Final	C&H Document Management	Comprehensive exposure assessment: Ridgecrest, Gallatin Chemical Works, Bonanza Creek, Kanawha Bend; CWA/RCRA/CERCLA liability; settlement posture recommendations
7	Regulatory Exposure Analysis — CWA, RCRA, CERCLA Liability Summary	November 8, 2024	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Statutory liability under CWA § 301, RCRA §§ 3004/3005, CERCLA § 107; defenses and mitigating factors
8	Penalty Calculation Analysis — EPA Penalty Policy Application	November 12, 2024	Calderwood & Harkness LLP	TMC Legal	xlsx	Final	C&H Document Management	EPA CWA and RCRA civil penalty policies applied per site; negotiated penalties: Ridgecrest $14.2M, Gallatin $5.8M, Bonanza Creek $7.9M, Kanawha Bend $3.6M; total $31.5M
9	Settlement Strategy Memorandum	November 15, 2024	Harrison Wexford; Elliot Nguyen	Miriam Soo-Hwan Park; Douglas K. Prennell	docx	Final — Privileged	C&H Document Management	Attorney-client privileged; negotiation strategy for penalty, remediation schedule, SEPs, financial assurance, dispute resolution
10	Comparative Consent Decree Analysis — Precedent EPA Mining Decrees	November 20, 2024	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Precedent EPA consent decrees in mining/chemicals enforcement; penalty-to-revenue ratios, remediation schedules, SEP commitments, financial assurance benchmarks
11	Memorandum on Migratory Bird Treaty Act Exposure (Bonanza Creek)	November 22, 2024	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	MBTA exposure for 17 avian mortalities at Bonanza Creek solution ponds (2021–2023); mens rea, DOJ enforcement policy, mitigation strategies

[sheet: III. Consent Decree Negotiation]

Item No.	Document Title	Date	Responsible Party / Drafter	Counterparty / Recipient	Format	Status	Execution Date	Filing Date	Original / Copy Location	Notes
12	Annotated Review of DOJ First Draft Consent Decree	November 12, 2024	Elliot Nguyen; Grace Nakamura	Harrison Wexford (internal review)	docx	Final — Internal	C&H Document Management	Section-by-section comments on DOJ first draft (Nov. 8, 2024); issue flags and recommended changes
13	Internal Redline and Comment Compilation — First DOJ Draft	November 25, 2024	Calderwood & Harkness LLP	Internal	docx	Final — Internal	C&H Document Management	Consolidated comments from TMC management (Gareth Linford, Miriam Soo-Hwan Park), Pinnacle Creek (Dr. Astrid Bergmann), local counsel (HDW, sagebrush, BTC), and C&H team
14	TMC Revised Draft Consent Decree (Redline to DOJ First Draft)	December 16, 2024	Calderwood & Harkness LLP	DOJ (Philip Orenstein) / EPA (Margaret Coulson)	docx	Delivered	C&H Document Management	Tracked changes against DOJ first draft; remediation schedules, penalty, stipulated penalties, force majeure, dispute resolution, termination
15	Transmittal Letter — C&H to DOJ/EPA (TMC Redline)	December 16, 2024	Harrison Wexford	Philip Orenstein (DOJ ENRD); Margaret Coulson (EPA OECA)	docx	Delivered	C&H Document Management	Transmittal of TMC redline; summary of principal changes; request for meeting
16	Memorandum on Stipulated Penalty Provisions — Negotiation Positions	December 20, 2024	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Analysis of gov't proposed rates: $1,500/day (days 1–30), $3,000/day (days 31–60), $5,500/day (61+); TMC positions on caps, cure periods, safe harbors
17	Memorandum on Force Majeure and Excusable Delay Provisions	January 3, 2025	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	15-day written notice requirement; burden of proof; recommended expansion of qualifying events
18	Memorandum on Dispute Resolution Mechanism	January 6, 2025	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Three-tier: informal negotiation (30 days) → formal EPA decision (30 days) → judicial review (30 days); standard of review and burden allocation
19	Analysis of Government Counter-Redline	January 17, 2025	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Government counter-redline received Jan. 14, 2025; accepted/rejected TMC changes; counter-proposals; remaining open issues
20	TMC Response to Government Counter-Redline (Second TMC Redline)	January 24, 2025	Calderwood & Harkness LLP	DOJ / EPA	docx	Delivered	C&H Document Management	Tracked changes against gov't counter-redline of Jan. 14, 2025; compromises on remaining open issues
21	Transmittal Letter — C&H to DOJ/EPA (Second TMC Redline)	January 24, 2025	Harrison Wexford	Philip Orenstein; Margaret Coulson	docx	Delivered	C&H Document Management	Transmittal of second TMC redline; proposal for in-person negotiation session
22	Consent Decree — Substantially Final Agreed Text	February 3, 2025	All parties	All parties	docx	Final — Agreed	C&H Document Management	Clean version; all negotiated terms: civil penalty $31.5M (quarterly installments); remediation all 4 sites ($343.5M nominal); SEPs $12.0M; financial assurance $245.0M; stipulated penalties; force majeure; dispute resolution; termination
23	Side Letter — Open Issues Resolved at Feb. 3 In-Person Session	February 3, 2025	Calderwood & Harkness LLP / DOJ / EPA	All parties	docx	Executed	February 3, 2025	C&H Document Management	Final resolution: Ridgecrest negotiated remediation cost $198.6M; stipulated penalty rates; independent monitor selection process
24	Consent Decree — Execution Version (for lodging)	February 19, 2025	All parties	U.S. District Court, D. Montana	docx	Executed / Lodged	February 19, 2025	February 19, 2025	Court filing / C&H Document Management	Bearing signature blocks for all parties: United States, Montana, Nevada, West Virginia, TMC, TM(US), TSC, RMH, BCM; lodged for 30-day public comment
25	Motion for Entry of Consent Decree — Draft for DOJ	April 2, 2025	Calderwood & Harkness LLP	DOJ (Philip Orenstein)	docx	Final — Delivered to DOJ	C&H Document Management	Draft for DOJ review/filing; fairness, reasonableness, consistency with CWA/RCRA/CERCLA objectives; response to public comments

[sheet: IV. Remediation Plans]

Item No.	Document Title	Date	Responsible Party / Drafter	Counterparty / Recipient	Format	Status	Execution Date	Filing Date	Original / Copy Location	Notes
26	Ridgecrest Remedial Action Work Plan — Framework and Outline	February 10, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA Region 8 (Dr. Samuel Tesfaye)	docx	Final — Draft Framework	C&H Document Management	AMD treatment, tailings impoundment stabilization, Flint Creek restoration; final submission deadline: Dec. 14, 2025; negotiated cost: $198.6M over 30 yrs (NPV 3%: $134.9M)
27	Ridgecrest Remediation Schedule — 30-Year Milestone Table	February 10, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA Region 8	xlsx	Final — Draft Framework	C&H Document Management	Remedy construction commencement: June 14, 2027; end of obligation: June 14, 2055; annual and 5-year milestones; $198.6M over 30 years
28	Gallatin Corrective Measures Study — Scope of Work and Schedule	February 14, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA Region 8	docx	Final — Draft Framework	C&H Document Management	Three SWMUs; CS₂ groundwater; VOC soils; submission deadline: June 14, 2026; est. cost: $42.8M over 15 yrs (NPV 3%: $34.1M)
29	Bonanza Creek Liner Repair and Containment Plan — Scope of Work	February 14, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA Region 9 (Jennifer Whitfield)	docx	Final — Draft Framework	C&H Document Management	Three documented releases (Mar. 2022, Aug. 2022, Jan. 2023); cyanide/mercury contamination; commencement deadline: June 14, 2026; est. cost: $63.2M over 20 yrs (NPV 3%: $47.1M)
30	Kanawha Bend Interim Stabilization Measures — Scope of Work and Schedule	February 18, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA Region 3	docx	Final — Draft Framework	C&H Document Management	Sulfuric acid residuals, heavy metals, DNAPL in fractured bedrock; completion deadline: Dec. 14, 2026; est. cost: $38.9M over 20 yrs (NPV 3%: $29.0M)
31	Consolidated Remediation Milestone Matrix — All Four Sites	February 20, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	All parties	xlsx	Final	C&H Document Management	All milestones, deadlines, responsible parties, consent decree section references; total nominal $343.5M; total NPV (3%) $245.1M
32	Memorandum on Performance Standards and Completion Criteria	February 22, 2025	Calderwood & Harkness LLP	TMC Legal	docx	Final	C&H Document Management	Performance standards, completion criteria, certification-of-completion requirements per site; termination no sooner than 5 years after completion of remedial construction
33	Draft Sampling and Monitoring Plan — All Sites (Appendix to Consent Decree)	February 24, 2025	Calderwood & Harkness LLP / Pinnacle Creek Environmental	EPA / Court	docx	Final — Appendix to Decree	C&H Document Management	Monitoring well networks, sampling frequencies, analyte lists, detection limits, reporting requirements for all four sites

[sheet: V. SEPs]

Item No.	Document Title	Date	Responsible Party / Drafter	Counterparty / Recipient	Format	Status	Execution Date	Filing Date	Original / Copy Location	Notes
34	SEP Description and Budget — Flint Creek Watershed Restoration Project	January 28, 2025	Calderwood & Harkness LLP	DOJ / EPA	docx	Final — Incorporated into Decree	C&H Document Management	Montana; $5.5M; stream-bank stabilization, riparian replanting, fish-passage improvements along 12 miles of Flint Creek downstream of Ridgecrest
35	SEP Description and Budget — Battle Mountain Community Drinking Water Improvement Project	January 28, 2025	Calderwood & Harkness LLP	DOJ / EPA	docx	Final — Incorporated into Decree	C&H Document Management	Nevada; $3.5M; upgrade of municipal water treatment facility in Battle Mountain, Lander County
36	SEP Description and Budget — Institute Community Air Quality Monitoring Network	January 28, 2025	Calderwood & Harkness LLP	DOJ / EPA	docx	Final — Incorporated into Decree	C&H Document Management	West Virginia; $3.0M; installation and 10-year operation of 6 ambient air quality monitoring stations in Institute/South Charleston area
37	SEP Compliance and Reporting Schedule — All Three SEPs	February 1, 2025	Calderwood & Harkness LLP	DOJ / EPA / States	xlsx	Final	C&H Document Management	Compliance milestones, reporting deadlines, certification requirements; total SEPs: $12.0M ($5.5M + $3.5M + $3.0M)

[sheet: Cover & Summary]
Field | Value
Document Title | Closing Checklist and Index — Consent Decree and Ancillary Documents
Date Prepared | April 28, 2025
Matter Name | United States of America and State of Montana v. Torchlight Mining Corp. et al.
Civil Action No. | 9:24-cv-00087-DWM
Court | U.S. District Court for the District of Montana, Missoula Division
Judge | Hon. Donald W. Molloy (Senior Judge)
C&H Matter No. | 1039-00003
Lead Outside Counsel | Calderwood & Harkness LLP
Responsible Partner | Harrison Wexford
Billing Partner | Beatrice Holloway
Lead Associate | Elliot Nguyen
Working Associate | Grace Nakamura
Client | Torchlight Mining Corp. (TSX: TRC / NYSE: TRC)
Client General Counsel | Miriam Soo-Hwan Park
Client CEO | Douglas K. Prennell
Client CFO | Carolyn Bracebridge
Client VP, EHS | Gareth Linford
Defendant Entities | Torchlight Mining Corp.; Torchlight Mining (U.S.) Inc.; Torchlight Specialty Chemicals, Inc.; Ridgecrest Mine Holdings, LLC; Bonanza Creek Mining, LLC
Plaintiffs | United States (EPA/DOJ); State of Montana; State of Nevada; State of West Virginia
Consent Decree Lodging Date | February 19, 2025
Public Comment Period Close | March 21, 2025
Motion for Entry Filed | April 7, 2025
Target Court Hearing | April 28, 2025
Target Entry Date | May 15, 2025
Effective Date (per Decree § IV) | June 14, 2025 (30 days after entry)
Total Documents in Checklist | 75
Total Categories | 13
Grand Total Nominal Obligation | $409.9 million
Grand Total NPV (3%) | $311.5 million
Financial Assurance Total | $245.0 million
Status as of This Date | Substantially complete; pending court entry
[sheet: I. Engagement & Administration]
Item No. | Document Title | Date | Responsible Party / Drafter | Counterparty / Recipient | Format | Status | Execution Date | Filing Date | Original / Copy Location | Notes
1 | Engagement Letter — Calderwood & Harkness LLP to Torchlight Mining Corp. | October 21, 2024 | Calderwood & Harkness LLP (Harrison Wexford) | Torchlight Mining Corp. (Miriam Soo-Hwan Park) | docx | Executed | October 21, 2024 | C&H Document Management / Matter 1039-00003 | Scope: multi-site EPA compliance & consent-decree negotiation; hourly rates: Partner $1,350, Sr. Assoc. $950, Assoc. $725, Paralegal $425; fee cap $4.5M; monthly billing net-30
2 | Conflict Check Memorandum | October 18, 2024 | Calderwood & Harkness LLP | Internal | docx | Final | C&H Document Management | No conflicts identified; checked TMC and all U.S. subsidiaries against EPA, DOJ, state co-plaintiffs, and all third parties
3 | Co-Counsel Coordination Agreement — C&H / HDW / Sagebrush / BTC | November 1, 2024 | Calderwood & Harkness LLP | Holcroft, Dane & Weiss LLP; sagebrush Law Group, PLLC; Baxter, Tully & Crane PLLC | docx | Executed | November 1, 2024 | C&H Document Management | Coordination protocols, lead-counsel authority, information-sharing, billing arrangements; local counsel: HDW (Montana — Russell Dane), sagebrush (Nevada — Denise Quartaro), BTC (West Virginia — Nathan Tully)
4 | Litigation Hold Notice / Preservation Memorandum — C&H to TMC | October 23, 2024 | Calderwood & Harkness LLP | Torchlight Mining Corp. (Miriam Soo-Hwan Park) | docx | Final — Delivered | C&H Document Management | Preservation of all documents, ESI, communications re: Ridgecrest, Gallatin, Bonanza Creek, Kanawha Bend; Civil Action No. 9:24-cv-00087-DWM
5 | Staffing Memorandum and Budget Estimate | October 25, 2024 | Calderwood & Harkness LLP (Harrison Wexford; Beatrice Holloway) | Internal | docx | Final | C&H Document Management | Staffing plan and projected hours by phase within $4.5M fee cap
[sheet: II. Case Assessment & Strategy]
Item No. | Document Title | Date | Responsible Party / Drafter | Counterparty / Recipient | Format | Status | Execution Date | Filing Date | Original / Copy Location | Notes
6 | Preliminary Case Assessment Memorandum — All Four Sites | November 4, 2024 | Calderwood & Harkness LLP | Miriam Soo-Hwan Park; Douglas K. Prennell | docx | Final | C&H Document Management | Comprehensive exposure assessment: Ridgecrest, Gallatin Chemical Works, Bonanza Creek, Kanawha Bend; CWA/RCRA/CERCLA liability; settlement posture recommendations
7 | Regulatory Exposure Analysis — CWA, RCRA, CERCLA Liability Summary | November 8, 2024 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Statutory liability under CWA § 301, RCRA §§ 3004/3005, CERCLA § 107; defenses and mitigating factors
8 | Penalty Calculation Analysis — EPA Penalty Policy Application | November 12, 2024 | Calderwood & Harkness LLP | TMC Legal | xlsx | Final | C&H Document Management | EPA CWA and RCRA civil penalty policies applied per site; negotiated penalties: Ridgecrest $14.2M, Gallatin $5.8M, Bonanza Creek $7.9M, Kanawha Bend $3.6M; total $31.5M
9 | Settlement Strategy Memorandum | November 15, 2024 | Harrison Wexford; Elliot Nguyen | Miriam Soo-Hwan Park; Douglas K. Prennell | docx | Final — Privileged | C&H Document Management | Attorney-client privileged; negotiation strategy for penalty, remediation schedule, SEPs, financial assurance, dispute resolution
10 | Comparative Consent Decree Analysis — Precedent EPA Mining Decrees | November 20, 2024 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Precedent EPA consent decrees in mining/chemicals enforcement; penalty-to-revenue ratios, remediation schedules, SEP commitments, financial assurance benchmarks
11 | Memorandum on Migratory Bird Treaty Act Exposure (Bonanza Creek) | November 22, 2024 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | MBTA exposure for 17 avian mortalities at Bonanza Creek solution ponds (2021–2023); mens rea, DOJ enforcement policy, mitigation strategies
[sheet: III. Consent Decree Negotiation]
Item No. | Document Title | Date | Responsible Party / Drafter | Counterparty / Recipient | Format | Status | Execution Date | Filing Date | Original / Copy Location | Notes
12 | Annotated Review of DOJ First Draft Consent Decree | November 12, 2024 | Elliot Nguyen; Grace Nakamura | Harrison Wexford (internal review) | docx | Final — Internal | C&H Document Management | Section-by-section comments on DOJ first draft (Nov. 8, 2024); issue flags and recommended changes
13 | Internal Redline and Comment Compilation — First DOJ Draft | November 25, 2024 | Calderwood & Harkness LLP | Internal | docx | Final — Internal | C&H Document Management | Consolidated comments from TMC management (Gareth Linford, Miriam Soo-Hwan Park), Pinnacle Creek (Dr. Astrid Bergmann), local counsel (HDW, sagebrush, BTC), and C&H team
14 | TMC Revised Draft Consent Decree (Redline to DOJ First Draft) | December 16, 2024 | Calderwood & Harkness LLP | DOJ (Philip Orenstein) / EPA (Margaret Coulson) | docx | Delivered | C&H Document Management | Tracked changes against DOJ first draft; remediation schedules, penalty, stipulated penalties, force majeure, dispute resolution, termination
15 | Transmittal Letter — C&H to DOJ/EPA (TMC Redline) | December 16, 2024 | Harrison Wexford | Philip Orenstein (DOJ ENRD); Margaret Coulson (EPA OECA) | docx | Delivered | C&H Document Management | Transmittal of TMC redline; summary of principal changes; request for meeting
16 | Memorandum on Stipulated Penalty Provisions — Negotiation Positions | December 20, 2024 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Analysis of gov't proposed rates: $1,500/day (days 1–30), $3,000/day (days 31–60), $5,500/day (61+); TMC positions on caps, cure periods, safe harbors
17 | Memorandum on Force Majeure and Excusable Delay Provisions | January 3, 2025 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | 15-day written notice requirement; burden of proof; recommended expansion of qualifying events
18 | Memorandum on Dispute Resolution Mechanism | January 6, 2025 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Three-tier: informal negotiation (30 days) → formal EPA decision (30 days) → judicial review (30 days); standard of review and burden allocation
19 | Analysis of Government Counter-Redline | January 17, 2025 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Government counter-redline received Jan. 14, 2025; accepted/rejected TMC changes; counter-proposals; remaining open issues
20 | TMC Response to Government Counter-Redline (Second TMC Redline) | January 24, 2025 | Calderwood & Harkness LLP | DOJ / EPA | docx | Delivered | C&H Document Management | Tracked changes against gov't counter-redline of Jan. 14, 2025; compromises on remaining open issues
21 | Transmittal Letter — C&H to DOJ/EPA (Second TMC Redline) | January 24, 2025 | Harrison Wexford | Philip Orenstein; Margaret Coulson | docx | Delivered | C&H Document Management | Transmittal of second TMC redline; proposal for in-person negotiation session
22 | Consent Decree — Substantially Final Agreed Text | February 3, 2025 | All parties | All parties | docx | Final — Agreed | C&H Document Management | Clean version; all negotiated terms: civil penalty $31.5M (quarterly installments); remediation all 4 sites ($343.5M nominal); SEPs $12.0M; financial assurance $245.0M; stipulated penalties; force majeure; dispute resolution; termination
23 | Side Letter — Open Issues Resolved at Feb. 3 In-Person Session | February 3, 2025 | Calderwood & Harkness LLP / DOJ / EPA | All parties | docx | Executed | February 3, 2025 | C&H Document Management | Final resolution: Ridgecrest negotiated remediation cost $198.6M; stipulated penalty rates; independent monitor selection process
24 | Consent Decree — Execution Version (for lodging) | February 19, 2025 | All parties | U.S. District Court, D. Montana | docx | Executed / Lodged | February 19, 2025 | February 19, 2025 | Court filing / C&H Document Management | Bearing signature blocks for all parties: United States, Montana, Nevada, West Virginia, TMC, TM(US), TSC, RMH, BCM; lodged for 30-day public comment
25 | Motion for Entry of Consent Decree — Draft for DOJ | April 2, 2025 | Calderwood & Harkness LLP | DOJ (Philip Orenstein) | docx | Final — Delivered to DOJ | C&H Document Management | Draft for DOJ review/filing; fairness, reasonableness, consistency with CWA/RCRA/CERCLA objectives; response to public comments
[sheet: IV. Remediation Plans]
Item No. | Document Title | Date | Responsible Party / Drafter | Counterparty / Recipient | Format | Status | Execution Date | Filing Date | Original / Copy Location | Notes
26 | Ridgecrest Remedial Action Work Plan — Framework and Outline | February 10, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA Region 8 (Dr. Samuel Tesfaye) | docx | Final — Draft Framework | C&H Document Management | AMD treatment, tailings impoundment stabilization, Flint Creek restoration; final submission deadline: Dec. 14, 2025; negotiated cost: $198.6M over 30 yrs (NPV 3%: $134.9M)
27 | Ridgecrest Remediation Schedule — 30-Year Milestone Table | February 10, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA Region 8 | xlsx | Final — Draft Framework | C&H Document Management | Remedy construction commencement: June 14, 2027; end of obligation: June 14, 2055; annual and 5-year milestones; $198.6M over 30 years
28 | Gallatin Corrective Measures Study — Scope of Work and Schedule | February 14, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA Region 8 | docx | Final — Draft Framework | C&H Document Management | Three SWMUs; CS₂ groundwater; VOC soils; submission deadline: June 14, 2026; est. cost: $42.8M over 15 yrs (NPV 3%: $34.1M)
29 | Bonanza Creek Liner Repair and Containment Plan — Scope of Work | February 14, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA Region 9 (Jennifer Whitfield) | docx | Final — Draft Framework | C&H Document Management | Three documented releases (Mar. 2022, Aug. 2022, Jan. 2023); cyanide/mercury contamination; commencement deadline: June 14, 2026; est. cost: $63.2M over 20 yrs (NPV 3%: $47.1M)
30 | Kanawha Bend Interim Stabilization Measures — Scope of Work and Schedule | February 18, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA Region 3 | docx | Final — Draft Framework | C&H Document Management | Sulfuric acid residuals, heavy metals, DNAPL in fractured bedrock; completion deadline: Dec. 14, 2026; est. cost: $38.9M over 20 yrs (NPV 3%: $29.0M)
31 | Consolidated Remediation Milestone Matrix — All Four Sites | February 20, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | All parties | xlsx | Final | C&H Document Management | All milestones, deadlines, responsible parties, consent decree section references; total nominal $343.5M; total NPV (3%) $245.1M
32 | Memorandum on Performance Standards and Completion Criteria | February 22, 2025 | Calderwood & Harkness LLP | TMC Legal | docx | Final | C&H Document Management | Performance standards, completion criteria, certification-of-completion requirements per site; termination no sooner than 5 years after completion of remedial construction
33 | Draft Sampling and Monitoring Plan — All Sites (Appendix to Consent Decree) | February 24, 2025 | Calderwood & Harkness LLP / Pinnacle Creek Environmental | EPA / Court | docx | Final — Appendix to Decree | C&H Document Management | Monitoring well networks, sampling frequencies, analyte lists, detection limits, reporting requirements for all four sites
[sheet: V. SEPs]
Item No. | Document Title | Date | Responsible Party / Drafter | Counterparty / Recipient | Format | Status | Execution Date | Filing Date | Original / Copy Location | Notes
34 | SEP Description and Budget — Flint Creek Watershed Restoration Project | January 28, 2025 | Calderwood & Harkness LLP | DOJ / EPA | docx | Final — Incorporated into Decree | C&H Document Management | Montana; $5.5M; stream-bank stabilization, riparian replanting, fish-passage improvements along 12 miles of Flint Creek downstream of Ridgecrest
35 | SEP Description and Budget — Battle Mountain Community Drinking Water Improvement Project | January 28, 2025 | Calderwood & Harkness LLP | DOJ / EPA | docx | Final — Incorporated into Decree | C&H Document Management | Nevada; $3.5M; upgrade of municipal water treatment facility in Battle Mountain, Lander County
36 | SEP Description and Budget — Institute Community Air Quality Monitoring Network | January 28, 2025 | Calderwood & Harkness LLP | DOJ / EPA | docx | Final — Incorporated into Decree | C&H Document Management | West Virginia; $3.0M; installation and 10-year operation of 6 ambient air quality monitoring stations in Institute/South Charleston area
37 | SEP Compliance and Reporting Schedule — All Three SEPs | February 1, 2025 | Calderwood & Harkness LLP | DOJ / EPA / States | xlsx | Final | C&H Document Management | Compliance milestones, reporting deadlines, certification requirements; total SEPs: $12.0M ($5.5M + $3.5M + $3.0M)

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