# Homer III Processing

- **MSHA mine ID:** 4605992
- **Status:** NonProducing
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Black Castle Mining Company LLC
- **Controller:** Alpha Metallurgical Resources Inc
- **Public source rows linked:** 4,707
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Metallurgical Resources Inc (0127321) → Black Castle Mining Company LLC (0086184) → Homer III Processing (4605992)**

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

## Controller and operator valid-time history

- **Cyprus Amax Minerals Company → Cannelton Industries Inc:** 1979-05-01 through 2001-11-06; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Massey Energy Company → Black Castle Mining Co:** 2001-11-07 through 2009-03-20; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Massey Energy Company → Independence Coal Company Inc.:** 2009-03-21 through 2011-05-31; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Black Castle Mining Co:** 2011-06-01 through 2009-03-20; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Independence Coal Company Inc.:** 2011-06-01 through 2013-12-31; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Black Castle Mining Company LLC:** 2014-01-01 through 2016-07-25; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Massey Energy Company → Black Castle Mining Company LLC:** 2014-01-01 through 2011-05-31; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Black Castle Mining Co:** 2016-07-26 through 2009-03-20; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Black Castle Mining Company LLC:** 2016-07-26 through 2018-11-08; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Independence Coal Company Inc.:** 2016-07-26 through 2013-12-31; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Black Castle Mining Co:** 2018-11-09 through 2009-03-20; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Black Castle Mining Company LLC:** 2018-11-09 through current/open; derived from co-tenure at mine 4605992; source `msha-controller-operator-history`.

- History rows: 12
- Typed edges: 24
- Interval anomalies: 5
- 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 16 historical accident/injury rows; 0 coded fatalities and 421 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 324 violation rows across the full record; 138 carry an S&S flag and $70,015 appears in current assessed amounts.
3. **HEALTH — 247 samples:** Occupational health samples 178 coal dust; 8 coal quartz; 61 noise. 0 personal-sample rows have a published C/E ratio above 1; 2 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 630 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 89 linked rows:** Contests, conferences and decisions 38 contested-violation rows, 38 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 22 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 — 26 since 2021:** Inspections 139 inspection events and 5K 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 77.1103 — Flammable liquids; storage.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1103
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606
- **30 CFR 77.516 — Electric wiring and equipment; installation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.516
- **30 CFR 77.502 — Electric equipment; examination, testing, and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **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
- **30 CFR 77.1713 — Daily inspection of surface coal mine; certified person; reports of inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1713
- **30 CFR 77.205 — Travelways at surface installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 77.200 — Surface installations; general.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.200
- **30 CFR 77.202 — Dust accumulations in surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.202

## Source coverage

- **Accident, Injuries, and Illnesses:** 16 rows; 2001-11-10 through 2020-10-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-07-07 through 2020-07-07; source ID `msha-addresses`
- **Assessed Violations:** 314 rows; 2001-11-07 through 2021-07-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 38 rows; 2009-10-05 through 2017-08-31; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 178 rows; 2002-04-23 through 2019-12-11; source ID `msha-coal-dust-samples`
- **Conferences:** 13 rows; 2001-11-20 through 2020-01-16; source ID `msha-conferences`
- **Contested Violations:** 38 rows; 2008-06-24 through 2016-12-05; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,819 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 629 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 12 rows; 1979-05-01 through 2014-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 139 rows; 2001-11-07 through 2026-10-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 93 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 23 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 61 rows; 2005-08-02 through 2019-12-11; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 8 rows; 2008-06-25 through 2019-03-20; source ID `msha-quartz-samples`
- **Violations:** 324 rows; 2001-11-07 through 2021-07-12; 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/homer-iii-processing-4605992`
- JSON: `/api/v1/mines/homer-iii-processing-4605992`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4605992/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4605992/relationships`
- MCP resource: `mine://4605992/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`