# Dorothy No 3 Mine

- **MSHA mine ID:** 4609150
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Boone, WV
- **Operator:** Mountain Edge Mining Inc
- **Controller:** Douglas M  Epling
- **Public source rows linked:** 4,109
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Douglas M  Epling (C15194) → Mountain Edge Mining Inc (P23018) → Dorothy No 3 Mine (4609150)**

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

## Controller and operator valid-time history

- **Peabody Energy Corporation → Pine Ridge Coal Company LLC:** 2006-07-07 through 2006-12-06; derived from co-tenure at mine 4609150; source `msha-controller-operator-history`.
- **Douglas M  Epling → Mountain Edge Mining Inc:** 2006-12-07 through current/open; derived from co-tenure at mine 4609150; source `msha-controller-operator-history`.
- **Patriot Coal Corporation → Pine Ridge Coal Company LLC:** 2007-10-31 through 2006-12-06; derived from co-tenure at mine 4609150; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- Interval anomalies: 1
- 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 — 0 since 2021:** Accidents and injuries 84 historical accident/injury rows; 0 coded fatalities and 1,944 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 821 violation rows across the full record; 274 carry an S&S flag and $737,339 appears in current assessed amounts.
3. **HEALTH — 674 samples:** Occupational health samples 597 coal dust; 27 coal quartz; 50 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 527 linked rows:** Contests, conferences and decisions 256 contested-violation rows, 259 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 66 inspection events and 6K 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 75.512 — Electric equipment; examination, testing and maintenance.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512
- **30 CFR 75.1107-16 — Inspection of fire suppression devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-16
- **30 CFR 77.402 — Hand-held power tools; safety devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.402
- **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 75.402 — Rock dusting.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.402
- **30 CFR 75.1403 — Other safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1403
- **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 75.701 — Grounding metallic frames, casings, and other enclosures of electric equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.701
- **30 CFR 77.208 — Storage of materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208

## Source coverage

- **Accident, Injuries, and Illnesses:** 84 rows; 2007-02-01 through 2015-07-28; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-07-23 through 2012-07-23; source ID `msha-addresses`
- **Assessed Violations:** 801 rows; 2007-02-05 through 2012-02-21; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 259 rows; 2010-12-16 through 2013-10-23; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 597 rows; 2007-01-30 through 2012-01-31; source ID `msha-coal-dust-samples`
- **Conferences:** 12 rows; 2012-02-28 through 2012-02-28; source ID `msha-conferences`
- **Contested Violations:** 256 rows; 2008-12-04 through 2012-05-01; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 907 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 204 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2006-07-07 through 2006-12-07; source ID `msha-controller-operator-history`
- **Inspections:** 66 rows; 2006-10-30 through 2013-08-20; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 20 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 50 rows; 2008-01-26 through 2011-03-31; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 27 rows; 2007-10-18 through 2012-01-31; source ID `msha-quartz-samples`
- **Violations:** 821 rows; 2007-02-05 through 2012-02-21; 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/dorothy-no-3-mine-4609150`
- JSON: `/api/v1/mines/dorothy-no-3-mine-4609150`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609150/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609150/relationships`
- MCP resource: `mine://4609150/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`