# Stockton Mine

- **MSHA mine ID:** 3608745
- **Status:** Active
- **Type / commodity:** Surface / Coal (Anthracite)
- **Location:** Luzerne, PA
- **Operator:** Atlantic Carbon Group, Inc.
- **Controller:** PT BUMA Internasional Grup Tbk
- **Public source rows linked:** 2,029
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**PT BUMA Internasional Grup Tbk (0186221) → Atlantic Carbon Group, Inc. (P22318) → Stockton Mine (3608745)**

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

## Controller and operator valid-time history

- **Bell Denis Inc → Atlantic Carbon Group, Inc.:** 1998-07-01 through 2003-04-30; derived from co-tenure at mine 3608745; source `msha-controller-operator-history`.
- **Pen Carb Incorporated → Atlantic Carbon Group, Inc.:** 2003-05-01 through 2007-11-12; derived from co-tenure at mine 3608745; source `msha-controller-operator-history`.
- **Atlantic Carbon Group PLC → Atlantic Carbon Group, Inc.:** 2007-11-13 through 2020-07-16; derived from co-tenure at mine 3608745; source `msha-controller-operator-history`.
- **ACG Holdco LLC → Atlantic Carbon Group, Inc.:** 2020-07-17 through 2024-06-25; derived from co-tenure at mine 3608745; source `msha-controller-operator-history`.
- **PT BUMA Internasional Grup Tbk → Atlantic Carbon Group, Inc.:** 2024-06-26 through current/open; derived from co-tenure at mine 3608745; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 11
- 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 — 8 since 2021:** Accidents and injuries 70 historical accident/injury rows; 0 coded fatalities and 2,415 lost days across the published record.
2. **COMPLIANCE — 37 since 2021:** Violations and penalties 260 violation rows across the full record; 97 carry an S&S flag and $44,057 appears in current assessed amounts.
3. **HEALTH — 767 samples:** Occupational health samples 508 coal dust; 65 coal quartz; 194 noise. 0 personal-sample rows have a published C/E ratio above 1; 20 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 16K employee hours and 33 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 5 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 3 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 — 38 since 2021:** Inspections 144 inspection events and 5K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 38,655 short tons
- **Labor hours:** 88,564
- **Average employees:** 39
- **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 77.1102 — Warning signs; smoking and open flame.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1102
- **30 CFR 77.1103 — Flammable liquids; storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1103
- **30 CFR 77.1000 — Highwalls, pits and spoil banks; plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1000
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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 77.200 — Surface installations; general.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.200
- **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 77.400 — 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
- **30 CFR 71.400 — Bathing facilities; change rooms; sanitary flush toilet facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.400
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.412 — Compressed air systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.412

## Source coverage

- **Accident, Injuries, and Illnesses:** 70 rows; 2002-05-22 through 2026-09-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2021-04-07 through 2021-04-07; source ID `msha-addresses`
- **Assessed Violations:** 255 rows; 2002-03-07 through 2026-06-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2018-01-12 through 2018-01-12; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 508 rows; 2001-09-13 through 2026-09-23; source ID `msha-coal-dust-samples`
- **Conferences:** 3 rows; 2017-09-19 through 2017-09-19; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2017-07-25 through 2017-07-25; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 224 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 62 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 1998-07-01 through 1998-07-01; source ID `msha-controller-operator-history`
- **Inspections:** 144 rows; 2000-03-21 through 2026-09-23; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 188 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 47 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 194 rows; 2001-09-20 through 2026-09-23; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 65 rows; 2001-09-13 through 2025-11-04; source ID `msha-quartz-samples`
- **Violations:** 260 rows; 2002-03-07 through 2026-06-03; 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/stockton-mine-3608745`
- JSON: `/api/v1/mines/stockton-mine-3608745`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3608745/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3608745/relationships`
- MCP resource: `mine://3608745/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`