# Cedar Grove Mine

- **MSHA mine ID:** 4608588
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Day LLC
- **Controller:** Patriot Coal Corporation
- **Public source rows linked:** 165
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Patriot Coal Corporation (0071611) → Day LLC (0051454) → Cedar Grove Mine (4608588)**

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

## Controller and operator valid-time history

- **Chris  Cline → Day Mining Inc:** 1996-09-01 through 2003-07-02; derived from co-tenure at mine 4608588; source `msha-controller-operator-history`.
- **Rainbow Trout Coal LLC → Day LLC:** 2003-07-03 through 2006-03-17; derived from co-tenure at mine 4608588; source `msha-controller-operator-history`.
- **Magnum Coal Company → Day LLC:** 2006-03-18 through 2008-07-22; derived from co-tenure at mine 4608588; source `msha-controller-operator-history`.
- **Patriot Coal Corporation → Day LLC:** 2008-07-23 through current/open; derived from co-tenure at mine 4608588; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 5 historical accident/injury rows; 0 coded fatalities and 392 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 33 violation rows across the full record; 7 carry an S&S flag and $2,483 appears in current assessed amounts.
3. **HEALTH — 27 samples:** Occupational health samples 23 coal dust; 2 coal quartz; 2 noise. 0 personal-sample rows have a published C/E ratio above 1; 0 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 — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 36 inspection events and 344 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 48.8 — Annual refresher training of miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-A/section-48.8
- **30 CFR 48.11 — Hazard training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-A/section-48.11
- **30 CFR 75.900 — Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-J/section-75.900
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 75.220 — Roof control plan.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220
- **30 CFR 75.1703 — Portable electric lamps.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1703
- **30 CFR 71.403 — Waiver of surface facilities requirements; posting of waiver.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.403
- **30 CFR 75.1714-3 — Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-3
- **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 75.333 — 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 75.1107-4 — Automatic fire sensors and manual actuators; installation; minimum requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-4

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2000-01-04 through 2000-04-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2008-10-21 through 2008-10-21; source ID `msha-addresses`
- **Assessed Violations:** 32 rows; 2000-01-04 through 2002-06-03; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 23 rows; 2000-01-10 through 2000-05-17; source ID `msha-coal-dust-samples`
- **Conferences:** 1 rows; 2002-07-30 through 2002-07-30; source ID `msha-conferences`
- **Controller and Operator History:** 4 rows; 1996-09-01 through 2003-07-03; source ID `msha-controller-operator-history`
- **Inspections:** 36 rows; 2000-01-03 through 2003-03-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 23 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 2 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 2 rows; 2000-03-28 through 2000-03-28; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 2 rows; 2000-01-10 through 2000-04-05; source ID `msha-quartz-samples`
- **Violations:** 33 rows; 2000-01-04 through 2002-06-03; 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-mine-4608588`
- JSON: `/api/v1/mines/cedar-grove-mine-4608588`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4608588/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4608588/relationships`
- MCP resource: `mine://4608588/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`