# Hernshaw Mine

- **MSHA mine ID:** 4608802
- **Status:** Temporarily Idled
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Logan, WV
- **Operator:** Aracoma Coal Company, LLC
- **Controller:** Alpha Metallurgical Resources Inc
- **Public source rows linked:** 9,662
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Metallurgical Resources Inc (0127321) → Aracoma Coal Company, LLC (P21118) → Hernshaw Mine (4608802)**

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

## Controller and operator valid-time history

- **Massey Energy Company → Aracoma Coal Company, LLC:** 1999-10-01 through 2011-05-31; derived from co-tenure at mine 4608802; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Aracoma Coal Company, LLC:** 2011-06-01 through 2016-07-25; derived from co-tenure at mine 4608802; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Aracoma Coal Company, LLC:** 2016-07-26 through 2018-11-08; derived from co-tenure at mine 4608802; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Aracoma Coal Company, LLC:** 2018-11-09 through current/open; derived from co-tenure at mine 4608802; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- Interval anomalies: 0
- 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 — 1 since 2021:** Accidents and injuries 110 historical accident/injury rows; 0 coded fatalities and 5,472 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 1,381 violation rows across the full record; 375 carry an S&S flag and $579,801 appears in current assessed amounts.
3. **HEALTH — 4K samples:** Occupational health samples 3,681 coal dust; 212 coal quartz; 182 noise. 0 personal-sample rows have a published C/E ratio above 1; 33 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 — 745 linked rows:** Contests, conferences and decisions 357 contested-violation rows, 358 civil-penalty docket/decision rows, and 30 conference records linked by issuance number.
6. **CONTRACTORS — 8 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 — 8 since 2021:** Inspections 188 inspection events and 14K 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 75.1711 — Sealing of mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1711
- **30 CFR 75.1103-8 — Automatic fire sensor and warning device systems; examination and test requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1103-8
- **30 CFR 75.204 — Roof bolting.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.204
- **30 CFR 75.202 — Protection from falls of roof, face and ribs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **30 CFR 77.700 — Grounding metallic sheaths, armors, and conduits enclosing power conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-H/section-77.700
- **30 CFR 77.400 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400
- **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 77.513 — Insulating mats at power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.513
- **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 75.700 — Grounding metallic sheaths, armors, and conduits enclosing power conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.700
- **30 CFR 75.512 — Electric equipment; examination, testing and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.1103-5 — Automatic fire warning devices; actions and response.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1103-5

## Source coverage

- **Accident, Injuries, and Illnesses:** 110 rows; 2001-01-13 through 2021-04-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-11-10 through 2020-11-10; source ID `msha-addresses`
- **Assessed Violations:** 1,337 rows; 2000-12-12 through 2021-02-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 358 rows; 2003-07-15 through 2016-02-18; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 3,681 rows; 2000-12-12 through 2020-08-31; source ID `msha-coal-dust-samples`
- **Conferences:** 30 rows; 2000-03-31 through 2019-12-16; source ID `msha-conferences`
- **Contested Violations:** 357 rows; 2006-01-18 through 2014-05-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,241 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 227 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1999-10-01 through 1999-10-01; source ID `msha-controller-operator-history`
- **Inspections:** 188 rows; 2000-03-15 through 2026-09-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 301 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 51 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 182 rows; 2001-08-15 through 2020-03-11; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 212 rows; 2000-11-22 through 2020-07-23; source ID `msha-quartz-samples`
- **Violations:** 1,381 rows; 2000-12-12 through 2021-02-24; 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/hernshaw-mine-4608802`
- JSON: `/api/v1/mines/hernshaw-mine-4608802`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4608802/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4608802/relationships`
- MCP resource: `mine://4608802/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`