# Hubbs Hollow Mine

- **MSHA mine ID:** 1519916
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Whitley, KY
- **Operator:** Ferroglobe USA Mining, LLC
- **Controller:** Ferroglobe PLC
- **Public source rows linked:** 583
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Ferroglobe PLC (0100987) → Ferroglobe USA Mining, LLC (0080224) → Hubbs Hollow Mine (1519916)**

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

## Controller and operator valid-time history

- **James  Cox et al → Ferroglobe USA Mining, LLC:** 2022-01-21 through 2009-07-16; derived from co-tenure at mine 1519916; source `msha-controller-operator-history`.
- **NCGPAsset Holdings II LP et al → Ferroglobe USA Mining, LLC:** 2022-01-21 through 2011-07-31; derived from co-tenure at mine 1519916; source `msha-controller-operator-history`.
- **Ferroglobe PLC → Ferroglobe USA Mining, LLC:** 2022-01-21 through current/open; derived from co-tenure at mine 1519916; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- Interval anomalies: 2
- 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 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 28 since 2021:** Violations and penalties 28 violation rows across the full record; 4 carry an S&S flag and $21,588 appears in current assessed amounts.
3. **HEALTH — 182 samples:** Occupational health samples 114 coal dust; 11 coal quartz; 57 noise. 0 personal-sample rows have a published C/E ratio above 1; 4 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 — 4K tons:** Quarterly production and employment 10K employee hours and 19 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 27 since 2021:** Inspections 27 inspection events and 816 published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 21,508 short tons
- **Labor hours:** 33,043
- **Average employees:** 10
- **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 77.1605 — Loading and haulage equipment; installations.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 72.620 — Drill dust control at surface mines and surface areas of underground mines.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.620
- **30 CFR 62.130 — Permissible exposure level.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.130
- **30 CFR 77.1103 — Flammable liquids; storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1103
- **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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2024-11-19 through 2024-11-19; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-02-10 through 2022-02-10; source ID `msha-addresses`
- **Assessed Violations:** 28 rows; 2022-03-07 through 2026-06-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; unknown through unknown; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 114 rows; 2022-03-14 through 2026-08-20; source ID `msha-coal-dust-samples`
- **Conferences:** 1 rows; 2026-04-17 through 2026-04-17; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2026-02-19 through 2026-02-19; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 243 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 43 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2022-01-21 through 2022-01-21; source ID `msha-controller-operator-history`
- **Inspections:** 27 rows; 2022-03-07 through 2026-09-21; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 18 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 5 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 57 rows; 2022-03-22 through 2026-04-23; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 11 rows; 2022-03-22 through 2026-02-20; source ID `msha-quartz-samples`
- **Violations:** 28 rows; 2022-03-07 through 2026-06-08; 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/hubbs-hollow-mine-1519916`
- JSON: `/api/v1/mines/hubbs-hollow-mine-1519916`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1519916/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1519916/relationships`
- MCP resource: `mine://1519916/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`