# Low Splint A Mine

- **MSHA mine ID:** 4407189
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Wise, VA
- **Operator:** Mill Branch Coal Corporation
- **Controller:** Alpha Natural Resources, Inc.
- **Public source rows linked:** 2,827
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Natural Resources, Inc. (0041211) → Mill Branch Coal Corporation (P23653) → Low Splint A Mine (4407189)**

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

## Controller and operator valid-time history

- **Cumberland Resources Corporation → Mill Branch Coal Corporation:** 2006-10-17 through 2010-04-18; derived from co-tenure at mine 4407189; source `msha-controller-operator-history`.
- **Massey Energy Company → Mill Branch Coal Corporation:** 2010-04-19 through 2011-05-31; derived from co-tenure at mine 4407189; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Mill Branch Coal Corporation:** 2011-06-01 through current/open; derived from co-tenure at mine 4407189; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 0 since 2021:** Accidents and injuries 22 historical accident/injury rows; 0 coded fatalities and 648 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 483 violation rows across the full record; 122 carry an S&S flag and $431,552 appears in current assessed amounts.
3. **HEALTH — 547 samples:** Occupational health samples 451 coal dust; 47 coal quartz; 49 noise. 0 personal-sample rows have a published C/E ratio above 1; 12 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 6K employee hours and 16 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 484 linked rows:** Contests, conferences and decisions 227 contested-violation rows, 226 civil-penalty docket/decision rows, and 31 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 107 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 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 77.502-2 — Electric equipment; frequency of examination and testing.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502-2
- **30 CFR 77.506 — Electric equipment and circuits; overload and short-circuit protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.506
- **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 75.362 — On-shift examination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.362
- **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
- **30 CFR 75.312 — Main mine fan examinations and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.312
- **30 CFR 75.360 — Preshift examination at fixed intervals.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.360
- **30 CFR 75.202 — Protection from falls of roof, face and ribs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **30 CFR 75.333 — Ventilation controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333

## Source coverage

- **Accident, Injuries, and Illnesses:** 22 rows; 2007-04-24 through 2012-07-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-10-31 through 2012-10-31; source ID `msha-addresses`
- **Assessed Violations:** 469 rows; 2007-04-12 through 2012-08-14; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 226 rows; 2008-02-25 through 2015-12-18; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 451 rows; 2007-02-05 through 2012-05-21; source ID `msha-coal-dust-samples`
- **Conferences:** 31 rows; 2007-05-09 through 2012-07-10; source ID `msha-conferences`
- **Contested Violations:** 227 rows; 2007-07-05 through 2013-11-14; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 526 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 124 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2006-10-17 through 2006-10-17; source ID `msha-controller-operator-history`
- **Inspections:** 107 rows; 2007-02-28 through 2012-11-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 48 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:** 49 rows; 2007-07-16 through 2012-02-21; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 47 rows; 2007-06-14 through 2011-10-19; source ID `msha-quartz-samples`
- **Violations:** 483 rows; 2007-04-12 through 2012-08-14; 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/low-splint-a-mine-4407189`
- JSON: `/api/v1/mines/low-splint-a-mine-4407189`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4407189/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4407189/relationships`
- MCP resource: `mine://4407189/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`