# Lynn Branch No. 2 Mine

- **MSHA mine ID:** 4609575
- **Status:** Active
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Logan, WV
- **Operator:** Aracoma Coal Company, LLC
- **Controller:** Alpha Metallurgical Resources Inc
- **Public source rows linked:** 18,902
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Metallurgical Resources Inc (0127321) → Aracoma Coal Company, LLC (P21118) → Lynn Branch No. 2 Mine (4609575)**

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

## Controller and operator valid-time history

- **Alpha Natural Resources, Inc. → Aracoma Coal Company, LLC:** 2019-06-11 through 2016-07-25; derived from co-tenure at mine 4609575; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Aracoma Coal Company, LLC:** 2019-06-11 through current/open; derived from co-tenure at mine 4609575; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Aracoma Coal Company, LLC:** 2019-06-11 through 2018-11-08; derived from co-tenure at mine 4609575; source `msha-controller-operator-history`.
- **Massey Energy Company → Aracoma Coal Company, LLC:** 2019-06-11 through 2011-05-31; derived from co-tenure at mine 4609575; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 — 51 since 2021:** Accidents and injuries 53 historical accident/injury rows; 0 coded fatalities and 2,036 lost days across the published record.
2. **COMPLIANCE — 1,517 since 2021:** Violations and penalties 1,556 violation rows across the full record; 314 carry an S&S flag and $1,266,670 appears in current assessed amounts.
3. **HEALTH — 13K samples:** Occupational health samples 12,551 coal dust; 488 coal quartz; 286 noise. 0 personal-sample rows have a published C/E ratio above 1; 28 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 — 275K tons:** Quarterly production and employment 109K employee hours and 169 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 432 linked rows:** Contests, conferences and decisions 152 contested-violation rows, 152 civil-penalty docket/decision rows, and 128 conference records linked by issuance number.
6. **CONTRACTORS — 7 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 — 227 since 2021:** Inspections 234 inspection events and 12K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 1,213,109 short tons
- **Labor hours:** 540,006
- **Average employees:** 214
- **Coal supply region:** Appalachia Central
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.1732 — Proximity detection systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1732
- **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 75.1403 — 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 75.503 — Permissible electric face equipment; maintenance.** (2 retained recent rows) — 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 75.220 — Roof control plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220
- **30 CFR 75.904 — Identification of circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.904
- **30 CFR 75.903 — Disconnecting devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.903
- **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 75.512 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 53 rows; 2020-04-29 through 2026-09-17; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-10-19 through 2020-10-19; source ID `msha-addresses`
- **Assessed Violations:** 1,497 rows; 2020-05-08 through 2026-09-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 152 rows; 2022-05-09 through 2026-08-20; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 12,551 rows; 2020-05-11 through 2026-10-07; source ID `msha-coal-dust-samples`
- **Conferences:** 128 rows; 2021-01-19 through 2026-09-08; source ID `msha-conferences`
- **Contested Violations:** 152 rows; 2021-12-02 through 2026-05-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,423 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 302 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2019-06-11 through 2019-06-11; source ID `msha-controller-operator-history`
- **Inspections:** 234 rows; 2020-02-27 through 2026-10-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 60 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 286 rows; 2020-11-03 through 2026-09-21; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 488 rows; 2020-11-03 through 2026-09-02; source ID `msha-quartz-samples`
- **Violations:** 1,556 rows; 2020-05-08 through 2026-10-08; 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/lynn-branch-no-2-mine-4609575`
- JSON: `/api/v1/mines/lynn-branch-no-2-mine-4609575`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609575/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609575/relationships`
- MCP resource: `mine://4609575/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`