# Imperial Mine

- **MSHA mine ID:** 4609115
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Upshur, WV
- **Operator:** Wolf Run Mining LLC
- **Controller:** Core Natural Resources Inc
- **Public source rows linked:** 4,480
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Core Natural Resources Inc (0189840) → Wolf Run Mining LLC (P23768) → Imperial Mine (4609115)**

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

## Controller and operator valid-time history

- **International Coal Group Inc (ICG) → Wolf Run Mining LLC:** 2005-11-18 through 2011-06-14; derived from co-tenure at mine 4609115; source `msha-controller-operator-history`.
- **Anker Group Inc → Wolf Run Mining LLC:** 2005-11-18 through 2005-05-31; derived from co-tenure at mine 4609115; source `msha-controller-operator-history`.
- **Arch Resources Inc → Wolf Run Mining LLC:** 2011-06-15 through 2025-01-13; derived from co-tenure at mine 4609115; source `msha-controller-operator-history`.
- **Core Natural Resources Inc → Wolf Run Mining LLC:** 2025-01-14 through current/open; derived from co-tenure at mine 4609115; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 9
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 78 historical accident/injury rows; 0 coded fatalities and 91 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 950 violation rows across the full record; 316 carry an S&S flag and $577,249 appears in current assessed amounts.
3. **HEALTH — 1K samples:** Occupational health samples 1,053 coal dust; 115 coal quartz; 98 noise. 0 personal-sample rows have a published C/E ratio above 1; 51 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 — 583 linked rows:** Contests, conferences and decisions 211 contested-violation rows, 211 civil-penalty docket/decision rows, and 161 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 109 inspection events and 10K 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 75.508 — Map of electrical system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.508
- **30 CFR 77.1104 — Accumulations of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 75.517 — Power wires and cables; insulation and protection.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.517
- **30 CFR 75.704 — Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.704
- **30 CFR 75.1107-9 — Dry chemical devices; capacity; minimum requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-9
- **30 CFR 75.807 — Installation of high-voltage transmission cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-I/section-75.807
- **30 CFR 75.1714-4 — Additional self-contained self-rescuers (SCSRs).** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-4
- **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 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:** 78 rows; 2006-08-23 through 2014-10-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2016-09-23 through 2016-09-23; source ID `msha-addresses`
- **Assessed Violations:** 940 rows; 2006-04-13 through 2014-06-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 211 rows; 2008-11-26 through 2014-05-05; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 1,053 rows; 2006-04-18 through 2012-08-21; source ID `msha-coal-dust-samples`
- **Conferences:** 161 rows; 2007-03-15 through 2014-04-14; source ID `msha-conferences`
- **Contested Violations:** 211 rows; 2007-03-13 through 2013-01-29; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 341 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 66 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 2005-11-18 through 2005-11-18; source ID `msha-controller-operator-history`
- **Inspections:** 109 rows; 2006-04-13 through 2016-10-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 120 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 21 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 98 rows; 2006-06-14 through 2012-04-11; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 115 rows; 2006-06-05 through 2012-08-21; source ID `msha-quartz-samples`
- **Violations:** 950 rows; 2006-04-13 through 2014-06-12; 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/imperial-mine-4609115`
- JSON: `/api/v1/mines/imperial-mine-4609115`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4609115/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4609115/relationships`
- MCP resource: `mine://4609115/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`