# Horning Deep Mine

- **MSHA mine ID:** 3609666
- **Status:** Abandoned and Sealed
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Somerset, PA
- **Operator:** RoxCoal, Inc.
- **Controller:** Quintana Capital Group GP Ltd
- **Public source rows linked:** 6,162
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Quintana Capital Group GP Ltd (0077457) → RoxCoal, Inc. (P24228) → Horning Deep Mine (3609666)**

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

## Controller and operator valid-time history

- **Severstal Resources → RoxCoal, Inc.:** 2008-08-29 through 2014-08-19; derived from co-tenure at mine 3609666; source `msha-controller-operator-history`.
- **Quintana Capital Group GP Ltd et al → RoxCoal, Inc.:** 2014-08-20 through current/open; derived from co-tenure at mine 3609666; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 5
- 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 — 24 since 2021:** Accidents and injuries 54 historical accident/injury rows; 0 coded fatalities and 1,048 lost days across the published record.
2. **COMPLIANCE — 174 since 2021:** Violations and penalties 494 violation rows across the full record; 44 carry an S&S flag and $74,212 appears in current assessed amounts.
3. **HEALTH — 4K samples:** Occupational health samples 3,611 coal dust; 133 coal quartz; 109 noise. 0 personal-sample rows have a published C/E ratio above 1; 6 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 — 8K tons:** Quarterly production and employment 9K employee hours and 17 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 37 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 21 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 — 47 since 2021:** Inspections 134 inspection events and 11K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 87,515 short tons
- **Labor hours:** 85,739
- **Average employees:** 38
- **Coal supply region:** Appalachia Northern
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.310 — Installation of main mine fans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.310
- **30 CFR 72.630 — Drill dust control at underground areas of underground mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.630
- **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 75.512 — 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 75.400 — Accumulation of combustible materials.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.220 — Roof control plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220
- **30 CFR 75.1702-1 — Smoking programs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1702-1
- **30 CFR 75.523-3 — Automatic emergency-parking brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.523-3
- **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 75.515 — Cable fittings; suitability.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.515

## Source coverage

- **Accident, Injuries, and Illnesses:** 54 rows; 2010-09-30 through 2024-05-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-12-19 through 2025-12-19; source ID `msha-addresses`
- **Assessed Violations:** 480 rows; 2009-05-20 through 2025-03-11; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2011-06-07 through 2018-07-11; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 3,611 rows; 2009-07-20 through 2025-02-11; source ID `msha-coal-dust-samples`
- **Conferences:** 21 rows; 2010-12-01 through 2024-07-22; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2009-05-20 through 2018-02-05; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 718 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 152 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 2008-08-29 through 2008-08-29; source ID `msha-controller-operator-history`
- **Inspections:** 134 rows; 2009-03-25 through 2025-07-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 193 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 43 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 109 rows; 2009-08-20 through 2024-04-10; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 133 rows; 2010-05-25 through 2025-01-29; source ID `msha-quartz-samples`
- **Violations:** 494 rows; 2009-05-20 through 2025-03-11; 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/horning-deep-mine-3609666`
- JSON: `/api/v1/mines/horning-deep-mine-3609666`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3609666/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3609666/relationships`
- MCP resource: `mine://3609666/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`