# Mine No. 43

- **MSHA mine ID:** 4609496
- **Status:** Abandoned
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Mcdowell, WV
- **Operator:** Twin State Mining, Inc.
- **Controller:** Cleveland-Cliffs Inc
- **Public source rows linked:** 11,553
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Cleveland-Cliffs Inc (M00106) → Twin State Mining, Inc. (0075785) → Mine No. 43 (4609496)**

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

## Controller and operator valid-time history

- **ArcelorMittal → XMV, Inc.:** 2014-10-01 through 2020-12-08; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.
- **William G  Skewes → XMV, Inc.:** 2014-10-01 through 2008-10-19; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.
- **Cleveland-Cliffs Inc → XMV, Inc.:** 2020-12-09 through 2021-11-17; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.
- **Gregory  Jessee et al → Twin State Mining, Inc.:** 2021-11-18 through 2008-12-04; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.
- **ArcelorMittal → Twin State Mining, Inc.:** 2021-11-18 through 2020-12-08; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.
- **Cleveland-Cliffs Inc → Twin State Mining, Inc.:** 2021-11-18 through current/open; derived from co-tenure at mine 4609496; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 13
- Interval anomalies: 3
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 11 since 2021:** Accidents and injuries 35 historical accident/injury rows; 0 coded fatalities and 825 lost days across the published record.
2. **COMPLIANCE — 321 since 2021:** Violations and penalties 1,284 violation rows across the full record; 220 carry an S&S flag and $895,160 appears in current assessed amounts.
3. **HEALTH — 7K samples:** Occupational health samples 6,750 coal dust; 250 coal quartz; 152 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 — 0 tons:** Quarterly production and employment 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 254 linked rows:** Contests, conferences and decisions 112 contested-violation rows, 112 civil-penalty docket/decision rows, and 30 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 — 40 since 2021:** Inspections 113 inspection events and 8K 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 75.1505 — Escapeway maps.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1505
- **30 CFR 75.362 — On-shift examination.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.362
- **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
- **30 CFR 72.630 — Drill dust control at underground areas of underground mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.630
- **30 CFR 75.523-3 — Automatic emergency-parking brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.523-3
- **30 CFR 75.503 — Permissible electric face equipment; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 75.333 — Ventilation controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333
- **30 CFR 75.807 — Installation of high-voltage transmission cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.807
- **30 CFR 75.352 — Actions in response to AMS malfunction, alert, or alarm signals.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.352
- **30 CFR 75.400 — Accumulation of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400

## Source coverage

- **Accident, Injuries, and Illnesses:** 35 rows; 2015-10-26 through 2022-12-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-08-19 through 2026-08-19; source ID `msha-addresses`
- **Assessed Violations:** 1,257 rows; 2015-06-11 through 2023-02-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 112 rows; 2017-06-30 through 2023-05-10; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 6,750 rows; 2001-01-01 through 2023-03-15; source ID `msha-coal-dust-samples`
- **Conferences:** 30 rows; 2016-02-02 through 2020-09-11; source ID `msha-conferences`
- **Contested Violations:** 112 rows; 2015-06-11 through 2022-08-23; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,104 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 250 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 2014-10-01 through 2021-11-18; source ID `msha-controller-operator-history`
- **Inspections:** 113 rows; 2015-06-11 through 2026-08-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 79 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 17 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 152 rows; 2016-02-23 through 2022-11-15; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 250 rows; 2015-12-21 through 2023-03-15; source ID `msha-quartz-samples`
- **Violations:** 1,284 rows; 2015-06-11 through 2023-02-03; 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/mine-no-43-4609496`
- JSON: `/api/v1/mines/mine-no-43-4609496`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609496/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609496/relationships`
- MCP resource: `mine://4609496/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`