# ACOSTA DEEP MINE

- **MSHA mine ID:** 3609893
- **Status:** Active
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Somerset, PA
- **Operator:** ROSEBUD MINING COMPANY
- **Controller:** J Clifford  Forrest III
- **Public source rows linked:** 11,053
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**J Clifford  Forrest III (C07485) → ROSEBUD MINING COMPANY (P09635) → ACOSTA DEEP MINE (3609893)**

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

## Controller and operator valid-time history

- **Quintana Capital Group GP Ltd et al → Wilson Creek Energy LLC:** 2016-09-08 through 2025-04-03; derived from co-tenure at mine 3609893; source `msha-controller-operator-history`.
- **Corsa Coal Corporation → Wilson Creek Energy LLC:** 2016-09-08 through 2013-03-14; derived from co-tenure at mine 3609893; source `msha-controller-operator-history`.
- **J Clifford  Forrest III → Rosebud Mining Company:** 2025-04-04 through current/open; derived from co-tenure at mine 3609893; 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 40 since 2021:** Accidents and injuries 63 historical accident/injury rows; 2 coded fatalities and 1,507 lost days across the published record.
2. **COMPLIANCE — 430 since 2021:** Violations and penalties 712 violation rows across the full record; 102 carry an S&S flag and $417,219 appears in current assessed amounts.
3. **HEALTH — 9K samples:** Occupational health samples 8,459 coal dust; 406 coal quartz; 201 noise. 0 personal-sample rows have a published C/E ratio above 1; 22 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 — 34K tons:** Quarterly production and employment 12K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 45 linked rows:** Contests, conferences and decisions 16 contested-violation rows, 16 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 2 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 — 68 since 2021:** Inspections 126 inspection events and 15K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 220,156 short tons
- **Labor hours:** 203,137
- **Average employees:** 93
- **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 75.202 — 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
- **30 CFR 75.380 — Escapeways; bituminous and lignite mines.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.380
- **30 CFR 75.602 — Trailing cable junctions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.602
- **30 CFR 75.1100-3 — Condition and examination of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3
- **30 CFR 75.1909 — Nonpermissible diesel-powered equipment; design and performance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-T/section-75.1909
- **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 75.370 — 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 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 63 rows; 2017-09-05 through 2025-01-10; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-05-08 through 2025-05-08; source ID `msha-addresses`
- **Assessed Violations:** 696 rows; 2016-10-19 through 2026-08-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 16 rows; 2018-03-07 through 2026-07-09; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 8,459 rows; 2016-12-01 through 2026-10-06; source ID `msha-coal-dust-samples`
- **Conferences:** 13 rows; 2017-12-13 through 2025-01-29; source ID `msha-conferences`
- **Contested Violations:** 16 rows; 2017-08-29 through 2026-05-11; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 195 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 46 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2016-09-08 through 2025-04-04; source ID `msha-controller-operator-history`
- **Inspections:** 126 rows; 2016-10-19 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 78 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:** 201 rows; 2016-12-20 through 2026-07-29; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 406 rows; 2017-02-21 through 2026-07-23; source ID `msha-quartz-samples`
- **Violations:** 712 rows; 2016-10-19 through 2026-09-02; 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/acosta-deep-mine-3609893`
- JSON: `/api/v1/mines/acosta-deep-mine-3609893`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3609893/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3609893/relationships`
- MCP resource: `mine://3609893/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`