# Corbin Project, LLC

- **MSHA mine ID:** 1502134
- **Status:** NonProducing
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Knox, KY
- **Operator:** Arq Corbin, LLC
- **Controller:** Arq Inc
- **Public source rows linked:** 2,445
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Arq Inc (0175820) → Arq Corbin, LLC (0143853) → Corbin Project, LLC (1502134)**

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

## Controller and operator valid-time history

- **Usx Corp → United States Steel Mining Company Inc:** 1950-01-01 through 1984-10-24; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Ashland Inc et al → Arch Of Kentucky:** 1984-10-25 through 1996-06-05; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Jim  Hall et al → C H Development:** 1996-06-06 through 1998-03-10; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Curtis  Corey et al → C H Development:** 1996-06-06 through 1998-03-10; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Mcnic Pipeline & Processing Company & Earthco → Crc No 6 Llc:** 1998-03-11 through 1998-06-16; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Beard Company → Beard Technologies Inc:** 1998-06-17 through 1999-04-30; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Mcnic Pipeline & Processing Company & Earthco → Crc No 6 Llc:** 1999-05-01 through 2000-07-06; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Curtis  Corey et al → C H Development:** 2000-07-07 through 2013-07-07; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Jim  Hall et al → C H Development:** 2000-07-07 through 2013-07-07; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Steve  Rickmeier et al → BRC Alabama No. 3, LLC:** 2013-07-08 through 2016-02-21; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Arq Limited → Arq Corbin, LLC:** 2016-02-22 through 2023-01-31; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.
- **Arq Inc → Arq Corbin, LLC:** 2023-02-01 through current/open; derived from co-tenure at mine 1502134; source `msha-controller-operator-history`.

- History rows: 12
- Typed edges: 29
- 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 — 3 since 2021:** Accidents and injuries 5 historical accident/injury rows; 0 coded fatalities and 127 lost days across the published record.
2. **COMPLIANCE — 9 since 2021:** Violations and penalties 121 violation rows across the full record; 31 carry an S&S flag and $12,352 appears in current assessed amounts.
3. **HEALTH — 169 samples:** Occupational health samples 101 coal dust; 68 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 2K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 6 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 11 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 — 19 since 2021:** Inspections 187 inspection events and 3K 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 77.410 — Mobile equipment; automatic warning devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410
- **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
- **30 CFR 48.23 — Training plans; time of submission; where filed; information required; time for approval; method for disapproval; commencement of training; approval of instructors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.23
- **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 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 71.402 — Minimum requirements for bathing facilities, change rooms, and sanitary flush toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.402
- **30 CFR 77.401 — Stationary grinding machines; protective devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.401
- **30 CFR 77.502 — Electric equipment; examination, testing, and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502
- **30 CFR 77.216-1 — Water, sediment or slurry impoundments and impounding structures; identification.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.216-1
- **30 CFR 77.1109 — Quantity and location of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1109
- **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
- **30 CFR 77.400 — Mechanical equipment guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400

## Source coverage

- **Accident, Injuries, and Illnesses:** 5 rows; 2004-12-15 through 2025-02-07; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-12-15 through 2025-12-15; source ID `msha-addresses`
- **Assessed Violations:** 118 rows; 2000-01-20 through 2025-11-06; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2019-03-13 through 2019-08-21; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 101 rows; 2000-04-25 through 2025-11-18; source ID `msha-coal-dust-samples`
- **Conferences:** 2 rows; 2006-01-24 through 2007-03-12; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2018-08-14 through 2019-01-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,299 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 271 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 12 rows; 1950-01-01 through 2016-02-22; source ID `msha-controller-operator-history`
- **Inspections:** 187 rows; 2000-01-20 through 2026-06-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 207 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 48 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 68 rows; 2000-04-25 through 2025-11-13; source ID `msha-noise-samples`
- **Violations:** 121 rows; 2000-01-20 through 2025-11-06; 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/corbin-project-llc-1502134`
- JSON: `/api/v1/mines/corbin-project-llc-1502134`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1502134/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1502134/relationships`
- MCP resource: `mine://1502134/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`