# Dupo Plant #9

- **MSHA mine ID:** 1100039
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** St Clair, IL
- **Operator:** Columbia Quarry Company
- **Controller:** Frank J  Beelman III
- **Public source rows linked:** 2,888
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Frank J  Beelman III (0093253) → Columbia Quarry Company (0110265) → Dupo Plant #9 (1100039)**

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

## Controller and operator valid-time history

- **Clyde D  Trexler → Columbia Quarry Company:** 1950-01-01 through 2010-05-07; derived from co-tenure at mine 1100039; source `msha-controller-operator-history`.
- **Frank J  Beelman III → Columbia Quarry Company:** 2010-05-08 through current/open; derived from co-tenure at mine 1100039; 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 7 since 2021:** Accidents and injuries 34 historical accident/injury rows; 0 coded fatalities and 1,459 lost days across the published record.
2. **COMPLIANCE — 90 since 2021:** Violations and penalties 268 violation rows across the full record; 44 carry an S&S flag and $62,941 appears in current assessed amounts.
3. **HEALTH — 64 samples:** Occupational health samples 64 personal. 2 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 13K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 11 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 11 conference records linked by issuance number.
6. **CONTRACTORS — 8 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 — 18 since 2021:** Inspections 83 inspection events and 2K 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 56.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 56.14109 — Unguarded conveyors with adjacent travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14109
- **30 CFR 56.11001 — Safe access.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.4430 — Storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4430
- **30 CFR 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.14206 — Securing movable parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14206

## Source coverage

- **Accident, Injuries, and Illnesses:** 34 rows; 2000-05-22 through 2026-02-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1993-10-22 through 1993-10-22; source ID `msha-addresses`
- **Assessed Violations:** 263 rows; 2000-01-11 through 2026-08-17; source ID `msha-assessed-violations`
- **Conferences:** 11 rows; 2008-07-08 through 2023-08-28; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 1,429 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 333 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 2010-05-08; source ID `msha-controller-operator-history`
- **Inspections:** 83 rows; 2000-01-10 through 2026-08-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 318 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 81 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:** 64 rows; 2001-05-16 through 2026-08-19; source ID `msha-personal-health-samples`
- **Violations:** 268 rows; 2000-01-11 through 2026-08-19; 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/dupo-plant-9-1100039`
- JSON: `/api/v1/mines/dupo-plant-9-1100039`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100039/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100039/relationships`
- MCP resource: `mine://1100039/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`