# SHM-20 MINER

- **MSHA mine ID:** 1519291
- **Status:** NonProducing
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Logan, WV
- **Operator:** Coal-Mac LLC
- **Controller:** John Mitch Potter
- **Public source rows linked:** 139
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**John Mitch Potter (0144441) → Coal-Mac LLC (P20596) → SHM-20 MINER (1519291)**

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

## Controller and operator valid-time history

- **Lonnie E  Rice → Cardinal Mining LLC:** 2008-08-12 through 2023-02-14; derived from co-tenure at mine 1519291; source `msha-controller-operator-history`.
- **John T  Quintrell → Civil, LLC:** 2023-02-15 through 2025-03-19; derived from co-tenure at mine 1519291; source `msha-controller-operator-history`.
- **John Mitch Potter → Coal-Mac LLC:** 2025-03-20 through current/open; derived from co-tenure at mine 1519291; source `msha-controller-operator-history`.
- **Ashland Inc et al → Coal-Mac LLC:** 2025-03-20 through 1997-06-30; derived from co-tenure at mine 1519291; source `msha-controller-operator-history`.
- **Arch Resources Inc → Coal-Mac LLC:** 2025-03-20 through 2019-10-22; derived from co-tenure at mine 1519291; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 13
- Interval anomalies: 2
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 22 since 2021:** Violations and penalties 25 violation rows across the full record; 9 carry an S&S flag and $5,992 appears in current assessed amounts.
3. **HEALTH — 33 samples:** Occupational health samples 21 coal dust; 12 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
5. **LEGAL — 24 linked rows:** Contests, conferences and decisions 12 contested-violation rows, 12 civil-penalty docket/decision rows, and 0 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 — 11 since 2021:** Inspections 18 inspection events and 403 published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 76,038 short tons
- **Labor hours:** 10,043
- **Average employees:** 4
- **Coal supply region:** Appalachia Central
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.400 — Mechanical equipment guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400
- **30 CFR 77.1001 — Stripping; loose material.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1001
- **30 CFR 77.205 — Travelways at surface installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **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
- **30 CFR 77.1703 — First-Aid training; supervisory employees.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1703
- **30 CFR 77.1202 — Availability of mine map.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-M/section-77.1202
- **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 71.500 — Sanitary toilet facilities at surface work sites; installation requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-F/section-71.500
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606

## Source coverage

- **Addresses of Record:** 1 rows; 2025-02-19 through 2025-02-19; source ID `msha-addresses`
- **Assessed Violations:** 25 rows; 2010-06-22 through 2024-12-18; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 12 rows; 2024-02-28 through 2025-04-04; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 21 rows; 2009-01-05 through 2024-12-20; source ID `msha-coal-dust-samples`
- **Contested Violations:** 12 rows; 2023-08-31 through 2024-12-18; source ID `msha-contested-violations`
- **Controller and Operator History:** 5 rows; 2008-08-12 through 2025-03-20; source ID `msha-controller-operator-history`
- **Inspections:** 18 rows; 2008-09-04 through 2026-08-11; source ID `msha-inspections`
- **Mine Employment and Production — Yearly:** 7 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 12 rows; 2009-01-05 through 2024-12-20; source ID `msha-noise-samples`
- **Violations:** 25 rows; 2010-06-22 through 2024-12-18; 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-20-miner-1519291`
- JSON: `/api/v1/mines/shm-20-miner-1519291`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1519291/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1519291/relationships`
- MCP resource: `mine://1519291/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`