# D-10 Dorchester

- **MSHA mine ID:** 4407052
- **Status:** Temporarily Idled
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Wise, VA
- **Operator:** Cumberland Coal Corporation
- **Controller:** Keri Alyssa Findley
- **Public source rows linked:** 12,193
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Keri Alyssa Findley (0196660) → Cumberland Coal Corporation (0205833) → D-10 Dorchester (4407052)**

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

## Controller and operator valid-time history

- **Cumberland Resources Corporation → Dorchester Enterprises, Inc.:** 2002-07-15 through 2010-04-18; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Massey Energy Company → Dorchester Enterprises, Inc.:** 2010-04-19 through 2011-05-31; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Dorchester Enterprises, Inc.:** 2011-06-01 through 2012-12-31; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Alpha Natural Resources, Inc. → Mill Branch Coal Corp.:** 2013-01-01 through 2015-07-30; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Massey Energy Company → Mill Branch Coal Corp.:** 2013-01-01 through 2011-05-31; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Cumberland Resources Corporation → Mill Branch Coal Corp.:** 2013-01-01 through 2010-04-18; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Jeffery A  Hoops → Blackjewel L.L.C.:** 2015-07-31 through 2019-12-29; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Industrial Minerals Group LLC → INMET Mining, LLC.:** 2019-12-30 through 2025-10-06; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.
- **Keri Alyssa Findley → Cumberland Coal Corporation:** 2025-10-07 through current/open; derived from co-tenure at mine 4407052; source `msha-controller-operator-history`.

- History rows: 9
- Typed edges: 21
- Interval anomalies: 2
- 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 125 historical accident/injury rows; 1 coded fatalities and 2,937 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 2,548 violation rows across the full record; 894 carry an S&S flag and $1,648,870 appears in current assessed amounts.
3. **HEALTH — 3K samples:** Occupational health samples 2,175 coal dust; 230 coal quartz; 244 noise. 0 personal-sample rows have a published C/E ratio above 1; 78 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 12 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2,867 linked rows:** Contests, conferences and decisions 1,339 contested-violation rows, 1,334 civil-penalty docket/decision rows, and 194 conference records linked by issuance number.
6. **CONTRACTORS — 7 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 — 20 since 2021:** Inspections 825 inspection events and 28K 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 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12
- **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 75.820 — Electrical work; troubleshooting and testing.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.820
- **30 CFR 75.825 — Power centers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.825
- **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 75.512 — 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 50.10 — Immediate notification.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.10
- **30 CFR 75.1725 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725
- **30 CFR 72.520 — Diesel equipment inventory.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-D/section-72.520
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205

## Source coverage

- **Accident, Injuries, and Illnesses:** 125 rows; 2002-10-26 through 2018-02-11; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2023-12-18 through 2023-12-18; source ID `msha-addresses`
- **Assessed Violations:** 2,507 rows; 2002-09-04 through 2019-12-23; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1,334 rows; 2008-06-16 through 2020-11-29; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 2,175 rows; 2002-09-17 through 2018-05-15; source ID `msha-coal-dust-samples`
- **Conferences:** 194 rows; 2003-02-20 through 2019-01-08; source ID `msha-conferences`
- **Contested Violations:** 1,339 rows; 2003-04-24 through 2018-10-04; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 376 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 91 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 9 rows; 2002-07-15 through 2025-10-07; source ID `msha-controller-operator-history`
- **Inspections:** 825 rows; 2002-08-23 through 2026-09-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 155 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 39 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 244 rows; 2003-09-11 through 2018-01-18; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 230 rows; 2002-10-07 through 2018-01-10; source ID `msha-quartz-samples`
- **Violations:** 2,548 rows; 2002-09-04 through 2019-12-23; 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/d-10-dorchester-4407052`
- JSON: `/api/v1/mines/d-10-dorchester-4407052`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4407052/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4407052/relationships`
- MCP resource: `mine://4407052/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`