# Four Mile

- **MSHA mine ID:** 1519432
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Bell, KY
- **Operator:** Nally & Hamilton Enterprises Inc
- **Controller:** Thomas R  Hamilton
- **Public source rows linked:** 2,025
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Thomas R  Hamilton (C03974) → Nally & Hamilton Enterprises Inc (P01158) → Four Mile (1519432)**

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

## Controller and operator valid-time history

- **Thomas R  Hamilton et al → Nally & Hamilton Enterprises Inc:** 2009-09-29 through current/open; derived from co-tenure at mine 1519432; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 6 since 2021:** Accidents and injuries 9 historical accident/injury rows; 0 coded fatalities and 700 lost days across the published record.
2. **COMPLIANCE — 49 since 2021:** Violations and penalties 124 violation rows across the full record; 19 carry an S&S flag and $19,501 appears in current assessed amounts.
3. **HEALTH — 379 samples:** Occupational health samples 249 coal dust; 24 coal quartz; 106 noise. 0 personal-sample rows have a published C/E ratio above 1; 0 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 — 35K tons:** Quarterly production and employment 11K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 72 linked rows:** Contests, conferences and decisions 35 contested-violation rows, 35 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 34 since 2021:** Inspections 59 inspection events and 2K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 119,890 short tons
- **Labor hours:** 66,303
- **Average employees:** 26
- **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 77.1007 — Drilling; general.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1007
- **30 CFR 72.620 — Drill dust control at surface mines and surface areas of underground mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.620
- **30 CFR 77.402 — Hand-held power tools; safety devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.402
- **30 CFR 77.1607 — Loading and haulage equipment; operation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.410 — Mobile equipment; automatic warning devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2011-04-19 through 2026-01-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2024-11-05 through 2024-11-05; source ID `msha-addresses`
- **Assessed Violations:** 121 rows; 2009-09-29 through 2026-07-30; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 35 rows; 2012-04-30 through 2019-09-11; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 249 rows; 2011-07-22 through 2026-08-25; source ID `msha-coal-dust-samples`
- **Conferences:** 2 rows; 2021-01-04 through 2023-12-21; source ID `msha-conferences`
- **Contested Violations:** 35 rows; 2011-03-24 through 2019-03-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 946 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 246 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2009-09-29 through 2009-09-29; source ID `msha-controller-operator-history`
- **Inspections:** 59 rows; 2009-09-29 through 2026-09-28; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 54 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 12 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 106 rows; 2011-08-04 through 2026-06-26; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 24 rows; 2011-12-14 through 2026-07-30; source ID `msha-quartz-samples`
- **Violations:** 124 rows; 2009-09-29 through 2026-09-28; 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/four-mile-1519432`
- JSON: `/api/v1/mines/four-mile-1519432`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1519432/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1519432/relationships`
- MCP resource: `mine://1519432/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`