# SHM System-77

- **MSHA mine ID:** 4407288
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Warrick, IN
- **Operator:** Mega Highwall Mining, LLC
- **Controller:** Daniel W  Bunn
- **Public source rows linked:** 451
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Daniel W  Bunn (0101029) → Mega Highwall Mining, LLC (0149874) → SHM System-77 (4407288)**

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

## Controller and operator valid-time history

- **Omega Holdings LLC → Omega Highwall Mining, LLC:** 2011-08-24 through 2018-08-02; derived from co-tenure at mine 4407288; source `msha-controller-operator-history`.
- **Omega Holdings LLC → Omega Surface Mining, LLC:** 2018-08-03 through 2020-08-04; derived from co-tenure at mine 4407288; source `msha-controller-operator-history`.
- **Michael D Bauersachs → Ramaco Resources Land Holdings, LLC:** 2020-08-05 through 2016-12-31; derived from co-tenure at mine 4407288; source `msha-controller-operator-history`.
- **Ramaco Resources Inc → Ramaco Resources Land Holdings, LLC:** 2020-08-05 through 2024-02-29; derived from co-tenure at mine 4407288; source `msha-controller-operator-history`.
- **Daniel W  Bunn → Mega Highwall Mining, LLC:** 2024-03-01 through current/open; derived from co-tenure at mine 4407288; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- 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 — 0 since 2021:** Accidents and injuries 3 historical accident/injury rows; 0 coded fatalities and 41 lost days across the published record.
2. **COMPLIANCE — 1 since 2021:** Violations and penalties 78 violation rows across the full record; 31 carry an S&S flag and $47,241 appears in current assessed amounts.
3. **HEALTH — 150 samples:** Occupational health samples 86 coal dust; 64 noise. 0 personal-sample rows have a published C/E ratio above 1; 2 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 — 23K tons:** Quarterly production and employment 5K employee hours and 16 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 17 linked rows:** Contests, conferences and decisions 6 contested-violation rows, 6 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 7 since 2021:** Inspections 46 inspection events and 1K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 112,821 short tons
- **Labor hours:** 10,668
- **Average employees:** 9
- **Coal supply region:** Illinois Basin
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.1501 — Auger mining; inspections.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-P/section-77.1501
- **30 CFR 77.1503 — Augering equipment; overhead protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-P/section-77.1503
- **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 77.410 — 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 77.512 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.512
- **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 77.602 — Permanent splicing of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-G/section-77.602
- **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 77.1710 — Protective clothing; requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1710
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404

## Source coverage

- **Accident, Injuries, and Illnesses:** 3 rows; 2013-10-31 through 2017-12-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-10-02 through 2026-10-02; source ID `msha-addresses`
- **Assessed Violations:** 72 rows; 2011-10-11 through 2018-09-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 6 rows; 2015-01-07 through 2017-03-08; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 86 rows; 2012-03-05 through 2026-06-17; source ID `msha-coal-dust-samples`
- **Conferences:** 5 rows; 2013-12-20 through 2014-11-06; source ID `msha-conferences`
- **Contested Violations:** 6 rows; 2013-10-25 through 2014-10-14; source ID `msha-contested-violations`
- **Controller and Operator History:** 5 rows; 2011-08-24 through 2024-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 46 rows; 2011-10-11 through 2026-06-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 66 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 12 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 64 rows; 2012-03-05 through 2026-06-17; source ID `msha-noise-samples`
- **Violations:** 78 rows; 2011-10-11 through 2025-09-08; 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/shm-system-77-4407288`
- JSON: `/api/v1/mines/shm-system-77-4407288`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4407288/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4407288/relationships`
- MCP resource: `mine://4407288/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`