# Mine No 4

- **MSHA mine ID:** 1518340
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Letcher, KY
- **Operator:** North Fork Coal Corporation
- **Controller:** Alpha Natural Resources, Inc.
- **Public source rows linked:** 7,827
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Natural Resources, Inc. (0041211) → North Fork Coal Corporation (P22905) → Mine No 4 (1518340)**

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

## Controller and operator valid-time history

- **Cumberland Resources Corporation → North Fork Coal Corporation:** 2001-02-01 through 2010-04-18; derived from co-tenure at mine 1518340; source `msha-controller-operator-history`.
- **Massey Energy Company → North Fork Coal Corporation:** 2010-04-19 through 2011-05-31; derived from co-tenure at mine 1518340; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → North Fork Coal Corporation:** 2011-06-01 through current/open; derived from co-tenure at mine 1518340; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 0 since 2021:** Accidents and injuries 159 historical accident/injury rows; 0 coded fatalities and 4,612 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 1,363 violation rows across the full record; 485 carry an S&S flag and $1,097,987 appears in current assessed amounts.
3. **HEALTH — 2K samples:** Occupational health samples 1,741 coal dust; 139 coal quartz; 202 noise. 0 personal-sample rows have a published C/E ratio above 1; 58 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 438 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1,245 linked rows:** Contests, conferences and decisions 591 contested-violation rows, 588 civil-penalty docket/decision rows, and 66 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 — 0 since 2021:** Inspections 366 inspection events and 17K 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 75.333 — Ventilation controls.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333
- **30 CFR 75.601 — Short circuit protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.601
- **30 CFR 75.1910 — Nonpermissible diesel-powered equipment; electrical system design and performance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-T/section-75.1910
- **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 75.364 — Weekly examination.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364
- **30 CFR 75.604 — Permanent splicing of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.604
- **30 CFR 75.1714-7 — Multi-gas detectors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-7
- **30 CFR 75.1911 — Fire suppression systems for diesel-powered equipment and fuel transportation units.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-T/section-75.1911
- **30 CFR 75.1100-3 — Condition and examination of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3

## Source coverage

- **Accident, Injuries, and Illnesses:** 159 rows; 2001-11-13 through 2013-09-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2013-10-17 through 2013-10-17; source ID `msha-addresses`
- **Assessed Violations:** 1,324 rows; 2001-06-28 through 2013-07-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 588 rows; 2003-05-14 through 2015-04-13; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 1,741 rows; 2001-07-26 through 2012-12-19; source ID `msha-coal-dust-samples`
- **Conferences:** 66 rows; 2002-03-22 through 2015-10-02; source ID `msha-conferences`
- **Contested Violations:** 591 rows; 2007-04-03 through 2015-07-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 926 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 187 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2001-02-01 through 2001-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 366 rows; 2001-06-14 through 2013-08-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 135 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 35 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 202 rows; 2002-04-16 through 2012-10-25; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 139 rows; 2001-09-05 through 2012-11-07; source ID `msha-quartz-samples`
- **Violations:** 1,363 rows; 2001-06-28 through 2013-07-18; 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-4-1518340`
- JSON: `/api/v1/mines/mine-no-4-1518340`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518340/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518340/relationships`
- MCP resource: `mine://1518340/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`