# Riola Mine Complex - Riola Portal

- **MSHA mine ID:** 1102971
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Vermilion, IL
- **Operator:** Peabody Midwest Mining, LLC
- **Controller:** Peabody Energy Corporation
- **Public source rows linked:** 1,809
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Peabody Energy Corporation (C15833) → Peabody Midwest Mining, LLC (P23854) → Riola Mine Complex - Riola Portal (1102971)**

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

## Controller and operator valid-time history

- **Ronald E  Laswell et al → Catlin Coal Company Inc:** 1995-01-01 through 1999-10-31; derived from co-tenure at mine 1102971; source `msha-controller-operator-history`.
- **Peabody Energy Corporation → Peabody Midwest Mining, LLC:** 1999-11-01 through current/open; derived from co-tenure at mine 1102971; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 152 historical accident/injury rows; 0 coded fatalities and 2,117 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 403 violation rows across the full record; 113 carry an S&S flag and $48,977 appears in current assessed amounts.
3. **HEALTH — 603 samples:** Occupational health samples 519 coal dust; 53 coal quartz; 31 noise. 0 personal-sample rows have a published C/E ratio above 1; 19 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 — 257K tons:** Quarterly production and employment 60K employee hours and 94 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 118 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 75.202 — Protection from falls of roof, face and ribs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202
- **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 75.606 — Protection of trailing cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.606
- **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 75.340 — Underground electrical installations.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.340
- **30 CFR 75.517 — Power wires and cables; insulation and protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.517
- **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 75.400 — Accumulation of combustible materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.1101-1 — Deluge-type water spray systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1101-1

## Source coverage

- **Accident, Injuries, and Illnesses:** 152 rows; 2000-02-04 through 2006-06-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-07-13 through 2009-07-13; source ID `msha-addresses`
- **Assessed Violations:** 397 rows; 2000-01-11 through 2006-06-22; source ID `msha-assessed-violations`
- **Coal Dust Samples:** 519 rows; 2000-01-05 through 2006-04-19; source ID `msha-coal-dust-samples`
- **Conferences:** 3 rows; 2002-01-08 through 2006-05-10; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 60 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 13 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1995-01-01 through 1999-11-01; source ID `msha-controller-operator-history`
- **Inspections:** 118 rows; 2000-01-03 through 2008-05-07; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 32 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 24 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 31 rows; 2000-05-03 through 2005-05-23; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 53 rows; 2000-09-28 through 2006-02-28; source ID `msha-quartz-samples`
- **Violations:** 403 rows; 2000-01-11 through 2006-06-22; 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/riola-mine-complex-riola-portal-1102971`
- JSON: `/api/v1/mines/riola-mine-complex-riola-portal-1102971`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1102971/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1102971/relationships`
- MCP resource: `mine://1102971/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`