# No. 4 Mine

- **MSHA mine ID:** 4609060
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Harrison, WV
- **Operator:** Wolf Run Mining LLC
- **Controller:** Core Natural Resources Inc
- **Public source rows linked:** 7,572
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Core Natural Resources Inc (0189840) → Wolf Run Mining LLC (P23768) → No. 4 Mine (4609060)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Anker Group Inc → Wolf Run Mining Company:** 2004-09-10 through 2005-05-31; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **International Coal Group Inc (ICG) → Wolf Run Mining Company:** 2005-06-01 through 2007-05-22; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **David M  Maynard → Ten-Mile Coal Co., Inc.:** 2007-05-23 through 2015-07-15; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **Arch Resources Inc → Wolf Run Mining Company:** 2011-06-15 through 2007-05-22; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **International Coal Group Inc (ICG) → Wolf Run Mining LLC:** 2015-07-16 through 2011-06-14; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **Anker Group Inc → Wolf Run Mining LLC:** 2015-07-16 through 2005-05-31; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **Arch Resources Inc → Wolf Run Mining LLC:** 2015-07-16 through 2025-01-13; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Wolf Run Mining Company:** 2025-01-14 through 2007-05-22; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Wolf Run Mining LLC:** 2025-01-14 through current/open; derived from co-tenure at mine 4609060; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 17
- Interval anomalies: 4
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 80 historical accident/injury rows; 1 coded fatalities and 1,067 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 1,686 violation rows across the full record; 573 carry an S&S flag and $1,402,454 appears in current assessed amounts.
3. **HEALTH — 1K samples:** Occupational health samples 1,174 coal dust; 43 coal quartz; 103 noise. 0 personal-sample rows have a published C/E ratio above 1; 22 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 1,256 linked rows:** Contests, conferences and decisions 450 contested-violation rows, 451 civil-penalty docket/decision rows, and 355 conference records linked by issuance number.
6. **CONTRACTORS — 6 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 0 since 2021:** Inspections 328 inspection events and 12K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.403 — Maintenance of incombustible content of rock dust.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.403
- **30 CFR 75.1504 — Mine emergency evacuation training and drills.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1504
- **30 CFR 75.1403 — Other safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403
- **30 CFR 75.202 — Protection from falls of roof, face and ribs.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **30 CFR 75.360 — Preshift examination at fixed intervals.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.360
- **30 CFR 75.342 — Methane monitors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.342
- **30 CFR 75.1725 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725
- **30 CFR 75.400 — Accumulation of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.370 — Mine ventilation plan; submission and approval.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370

## Source coverage

- **Accident, Injuries, and Illnesses:** 80 rows; 2005-07-12 through 2015-03-30; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2018-11-08 through 2018-11-08; source ID `msha-addresses`
- **Assessed Violations:** 1,659 rows; 2005-05-10 through 2015-04-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 451 rows; 2007-07-10 through 2016-08-02; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 1,174 rows; 2005-06-07 through 2015-05-04; source ID `msha-coal-dust-samples`
- **Conferences:** 355 rows; 2005-10-20 through 2015-06-11; source ID `msha-conferences`
- **Contested Violations:** 450 rows; 2006-04-18 through 2015-04-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 974 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 232 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2004-09-10 through 2015-07-16; source ID `msha-controller-operator-history`
- **Inspections:** 328 rows; 2005-05-10 through 2018-06-27; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 26 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 103 rows; 2005-09-08 through 2014-10-31; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 43 rows; 2005-09-01 through 2015-01-27; source ID `msha-quartz-samples`
- **Violations:** 1,686 rows; 2005-05-10 through 2015-04-28; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/no-4-mine-4609060`
- JSON: `/api/v1/mines/no-4-mine-4609060`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609060/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609060/relationships`
- MCP resource: `mine://4609060/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`