# Mine #1

- **MSHA mine ID:** 1518506
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Letcher, KY
- **Operator:** Enterprise Mining Company, L. L. C.
- **Controller:** Alpha Natural Resources Holdings, Inc
- **Public source rows linked:** 1,322
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Natural Resources Holdings, Inc (0127923) → Enterprise Mining Company, L. L. C. (0051027) → Mine #1 (1518506)**

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

## Controller and operator valid-time history

- **El Paso Energy Corp → Coastal Coal Company, L.L.C.:** 2002-01-23 through 2003-01-31; derived from co-tenure at mine 1518506; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Enterprise Mining Company, L. L. C.:** 2003-02-01 through 2016-07-25; derived from co-tenure at mine 1518506; source `msha-controller-operator-history`.
- **Amfire LLC → Enterprise Mining Company, L. L. C.:** 2003-02-01 through 2003-01-31; derived from co-tenure at mine 1518506; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Enterprise Mining Company, L. L. C.:** 2016-07-26 through current/open; derived from co-tenure at mine 1518506; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- Interval anomalies: 1
- 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 14 historical accident/injury rows; 1 coded fatalities and 493 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 61 violation rows across the full record; 14 carry an S&S flag and $5,652 appears in current assessed amounts.
3. **HEALTH — 517 samples:** Occupational health samples 442 coal dust; 41 coal quartz; 34 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 — 0 tons:** Quarterly production and employment 660 employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 4 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 51 inspection events and 2K 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 75.403 — Maintenance of incombustible content of rock dust.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.403
- **30 CFR 77.206 — Ladders; construction; installation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.206
- **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 75.703 — Grounding offtrack direct-current machines and the enclosures of related detached components.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.703
- **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 75.370 — 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 75.506 — Electric face equipment; requirements for permissibility.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.506
- **30 CFR 77.1109 — Quantity and location of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1109
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605

## Source coverage

- **Accident, Injuries, and Illnesses:** 14 rows; 2003-03-17 through 2005-12-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2007-01-03 through 2007-01-03; source ID `msha-addresses`
- **Assessed Violations:** 59 rows; 2003-03-20 through 2006-11-13; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 442 rows; 2003-04-21 through 2006-10-11; source ID `msha-coal-dust-samples`
- **Conferences:** 4 rows; 2005-01-28 through 2006-05-22; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 472 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 73 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2002-01-23 through 2003-02-01; source ID `msha-controller-operator-history`
- **Inspections:** 51 rows; 2002-01-25 through 2007-06-04; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 53 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:** 34 rows; 2003-05-13 through 2006-06-13; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 41 rows; 2003-05-13 through 2006-10-11; source ID `msha-quartz-samples`
- **Violations:** 61 rows; 2003-03-20 through 2006-11-13; 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-1-1518506`
- JSON: `/api/v1/mines/mine-1-1518506`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518506/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518506/relationships`
- MCP resource: `mine://1518506/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`