# Cedar Grove #1 Mine

- **MSHA mine ID:** 4609299
- **Status:** Temporarily Idled
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Logan, WV
- **Operator:** Aracoma Coal Company, LLC
- **Controller:** Alpha Metallurgical Resources Inc
- **Public source rows linked:** 1,689
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alpha Metallurgical Resources Inc (0127321) → Aracoma Coal Company, LLC (P21118) → Cedar Grove #1 Mine (4609299)**

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

## Controller and operator valid-time history

- **Massey Energy Company → Aracoma Coal Company, LLC:** 2008-07-25 through 2011-05-31; derived from co-tenure at mine 4609299; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Aracoma Coal Company, LLC:** 2011-06-01 through 2016-07-25; derived from co-tenure at mine 4609299; source `msha-controller-operator-history`.
- **Alpha Natural Resources Holdings, Inc → Aracoma Coal Company, LLC:** 2016-07-26 through 2018-11-08; derived from co-tenure at mine 4609299; source `msha-controller-operator-history`.
- **Alpha Metallurgical Resources Inc → Aracoma Coal Company, LLC:** 2018-11-09 through current/open; derived from co-tenure at mine 4609299; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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 9 historical accident/injury rows; 0 coded fatalities and 458 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 254 violation rows across the full record; 88 carry an S&S flag and $133,882 appears in current assessed amounts.
3. **HEALTH — 645 samples:** Occupational health samples 560 coal dust; 29 coal quartz; 56 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 0 employee hours and 0 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 161 linked rows:** Contests, conferences and decisions 79 contested-violation rows, 79 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 3 since 2021:** Inspections 72 inspection events and 3K 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 75.333 — Ventilation controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333
- **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 75.512 — Electric equipment; examination, testing and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.517 — Power wires and cables; insulation and protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.517
- **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 75.503 — Permissible electric face equipment; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 75.400 — Accumulation of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **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 75.605 — Clamping of trailing cables to equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.605
- **30 CFR 75.1505 — Escapeway maps.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1505
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2011-01-22 through 2014-01-06; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2019-09-23 through 2019-09-23; source ID `msha-addresses`
- **Assessed Violations:** 246 rows; 2008-12-18 through 2014-02-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 79 rows; 2011-03-07 through 2015-10-29; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 560 rows; 2009-02-06 through 2014-01-29; source ID `msha-coal-dust-samples`
- **Conferences:** 3 rows; 2012-10-26 through 2013-05-07; source ID `msha-conferences`
- **Contested Violations:** 79 rows; 2009-07-07 through 2013-01-22; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 114 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 26 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2008-07-25 through 2008-07-25; source ID `msha-controller-operator-history`
- **Inspections:** 72 rows; 2008-12-16 through 2026-09-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 141 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 15 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 56 rows; 2009-04-08 through 2013-05-07; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 29 rows; 2009-02-06 through 2014-01-29; source ID `msha-quartz-samples`
- **Violations:** 254 rows; 2008-12-18 through 2014-02-04; 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/cedar-grove-1-mine-4609299`
- JSON: `/api/v1/mines/cedar-grove-1-mine-4609299`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609299/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609299/relationships`
- MCP resource: `mine://4609299/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`