# Onton #9

- **MSHA mine ID:** 1518547
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Webster, KY
- **Operator:** Sebree Mining LLC
- **Controller:** Alliance Resource Partners LP
- **Public source rows linked:** 16,525
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Alliance Resource Partners LP (C15455) → Sebree Mining LLC (0111108) → Onton #9 (1518547)**

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

## Controller and operator valid-time history

- **Goldston Holding → Allied Resources, Inc.:** 2001-11-21 through 2004-05-02; derived from co-tenure at mine 1518547; source `msha-controller-operator-history`.
- **Chester M  Thomas → Advent Mining LLC:** 2004-05-03 through 2012-04-01; derived from co-tenure at mine 1518547; source `msha-controller-operator-history`.
- **Alliance Resource Partners LP → Sebree Mining LLC:** 2012-04-02 through current/open; derived from co-tenure at mine 1518547; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 9
- 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 — 0 since 2021:** Accidents and injuries 349 historical accident/injury rows; 1 coded fatalities and 6,782 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 2,971 violation rows across the full record; 836 carry an S&S flag and $2,106,243 appears in current assessed amounts.
3. **HEALTH — 4K samples:** Occupational health samples 2,997 coal dust; 304 coal quartz; 375 noise. 0 personal-sample rows have a published C/E ratio above 1; 87 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 — 2,092 linked rows:** Contests, conferences and decisions 862 contested-violation rows, 860 civil-penalty docket/decision rows, and 370 conference records linked by issuance number.
6. **CONTRACTORS — 22 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 501 inspection events and 32K 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 77.900-2 — Testing, examination, and maintenance of circuit breakers; record.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.900-2
- **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 75.364 — Weekly examination.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364
- **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 75.1714-7 — Multi-gas detectors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-7
- **30 CFR 75.1910 — Nonpermissible diesel-powered equipment; electrical system design and performance requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-T/section-75.1910
- **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 75.202 — Protection from falls of roof, face and ribs.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **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 75.807 — 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 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 349 rows; 2005-02-23 through 2015-12-24; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-04-09 through 2026-04-09; source ID `msha-addresses`
- **Assessed Violations:** 2,917 rows; 2004-11-15 through 2016-12-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 860 rows; 2007-01-10 through 2017-12-13; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 2,997 rows; 2005-07-27 through 2020-10-18; source ID `msha-coal-dust-samples`
- **Conferences:** 370 rows; 2005-03-16 through 2015-01-07; source ID `msha-conferences`
- **Contested Violations:** 862 rows; 2006-05-30 through 2017-05-11; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,983 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 639 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2001-11-21 through 2012-04-02; source ID `msha-controller-operator-history`
- **Inspections:** 501 rows; 2002-07-01 through 2017-11-02; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 339 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 53 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 375 rows; 2005-09-07 through 2015-11-04; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 304 rows; 2005-07-27 through 2015-10-13; source ID `msha-quartz-samples`
- **Violations:** 2,971 rows; 2004-11-15 through 2016-12-13; 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/onton-9-1518547`
- JSON: `/api/v1/mines/onton-9-1518547`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1518547/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1518547/relationships`
- MCP resource: `mine://1518547/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`