# Shoals Mine

- **MSHA mine ID:** 1200427
- **Status:** Active
- **Type / commodity:** Underground / Gypsum
- **Location:** Martin, IN
- **Operator:** U S Gypsum Company
- **Controller:** USG Corporation
- **Public source rows linked:** 3,184
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**USG Corporation (M00007) → U S Gypsum Company (L00537) → Shoals Mine (1200427)**

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

## Controller and operator valid-time history

- **USG Corporation → U S Gypsum Company:** 1950-01-01 through current/open; derived from co-tenure at mine 1200427; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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 — 21 since 2021:** Accidents and injuries 65 historical accident/injury rows; 0 coded fatalities and 90 lost days across the published record.
2. **COMPLIANCE — 96 since 2021:** Violations and penalties 239 violation rows across the full record; 60 carry an S&S flag and $64,896 appears in current assessed amounts.
3. **HEALTH — 247 samples:** Occupational health samples 226 personal; 21 area. 12 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 — 0 tons:** Quarterly production and employment 27K employee hours and 53 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 27 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 53 since 2021:** Inspections 170 inspection events and 6K 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 49.8 — Training for mine rescue teams.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-A/section-49.8
- **30 CFR 57.4160 — Underground electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4160
- **30 CFR 57.12038 — Attachment of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12038
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.14132 — Horns and backup alarms.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12020 — Protection of persons at switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12020

## Source coverage

- **Accident, Injuries, and Illnesses:** 65 rows; 2000-03-13 through 2026-09-02; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-04-21 through 2025-04-21; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 21 rows; 2009-05-19 through 2026-09-09; source ID `msha-area-samples`
- **Assessed Violations:** 236 rows; 2000-03-21 through 2026-06-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2011-11-21 through 2025-09-19; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 5 rows; 2007-10-03 through 2025-06-03; source ID `msha-conferences`
- **Contested Violations:** 11 rows; 2010-02-19 through 2025-01-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,360 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 305 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 170 rows; 2000-03-21 through 2026-09-09; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 424 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 108 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 226 rows; 2001-02-22 through 2026-09-09; source ID `msha-personal-health-samples`
- **Violations:** 239 rows; 2000-03-21 through 2026-06-08; 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/shoals-mine-1200427`
- JSON: `/api/v1/mines/shoals-mine-1200427`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1200427/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1200427/relationships`
- MCP resource: `mine://1200427/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`