# Coal Branch No.1 Mine

- **MSHA mine ID:** 4609588
- **Status:** NonProducing
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Rockwell Mining LLC
- **Controller:** Sev.en Global Investments a.s.
- **Public source rows linked:** 6,497
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Sev.en Global Investments a.s. (0158381) → Rockwell Mining LLC (0141655) → Coal Branch No.1 Mine (4609588)**

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

## Controller and operator valid-time history

- **Blackhawk Mining LLC → Rockwell Mining LLC:** 2019-12-04 through 2020-05-31; derived from co-tenure at mine 4609588; source `msha-controller-operator-history`.
- **Sev.en Global Investments a.s. → Rockwell Mining LLC:** 2020-06-01 through current/open; derived from co-tenure at mine 4609588; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 4 since 2021:** Accidents and injuries 5 historical accident/injury rows; 0 coded fatalities and 122 lost days across the published record.
2. **COMPLIANCE — 568 since 2021:** Violations and penalties 685 violation rows across the full record; 120 carry an S&S flag and $434,420 appears in current assessed amounts.
3. **HEALTH — 4K samples:** Occupational health samples 4,016 coal dust; 133 coal quartz; 81 noise. 0 personal-sample rows have a published C/E ratio above 1; 6 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 810 linked rows:** Contests, conferences and decisions 400 contested-violation rows, 400 civil-penalty docket/decision rows, and 10 conference records linked by issuance number.
6. **CONTRACTORS — 1 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 — 45 since 2021:** Inspections 57 inspection events and 6K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 281,637 short tons
- **Labor hours:** 164,239
- **Average employees:** 67
- **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 75.364 — Weekly examination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364
- **30 CFR 75.310 — Installation of main mine fans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.310
- **30 CFR 70.208 — Quarterly sampling; mechanized mining units.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-70/subpart-C/section-70.208
- **30 CFR 70.209 — Quarterly sampling; designated areas.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-70/subpart-C/section-70.209
- **30 CFR 72.630 — Drill dust control at underground areas of underground mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.630
- **30 CFR 75.1101-10 — Water sprinkler systems; fire warning devices at belt drives.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1101-10
- **30 CFR 75.1102 — Slippage and sequence switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1102
- **30 CFR 75.1731 — Maintenance of belt conveyors and belt conveyor entries.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1731

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2020-12-09 through 2025-12-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-12-05 through 2025-12-05; source ID `msha-addresses`
- **Assessed Violations:** 671 rows; 2020-03-05 through 2026-06-16; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 400 rows; 2021-03-17 through 2026-03-04; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 4,016 rows; 2020-02-24 through 2025-12-04; source ID `msha-coal-dust-samples`
- **Conferences:** 10 rows; 2021-02-26 through 2024-10-07; source ID `msha-conferences`
- **Contested Violations:** 400 rows; 2020-07-06 through 2025-10-09; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 14 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 7 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2019-12-04 through 2019-12-04; source ID `msha-controller-operator-history`
- **Inspections:** 57 rows; 2020-01-08 through 2026-07-08; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 81 rows; 2020-04-27 through 2025-10-21; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 133 rows; 2020-04-27 through 2025-10-22; source ID `msha-quartz-samples`
- **Violations:** 685 rows; 2020-03-05 through 2026-06-16; 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/coal-branch-no-1-mine-4609588`
- JSON: `/api/v1/mines/coal-branch-no-1-mine-4609588`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609588/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609588/relationships`
- MCP resource: `mine://4609588/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`