# Poplar Bluff Stone

- **MSHA mine ID:** 2302489
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Butler, MO
- **Operator:** Bluewing Materials
- **Controller:** (Lowell) Austin  Williams; Christopher C Williams
- **Public source rows linked:** 538
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**(Lowell) Austin  Williams; Christopher C Williams (0186161) → Bluewing Materials (0196893) → Poplar Bluff Stone (2302489)**

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

## Controller and operator valid-time history

- **Christopher Claud  Williams → Cane Creek Quarry LLC:** 2015-01-15 through 2024-06-30; derived from co-tenure at mine 2302489; source `msha-controller-operator-history`.
- **(Lowell) Austin  Williams et al → Bluewing Materials:** 2024-07-01 through current/open; derived from co-tenure at mine 2302489; source `msha-controller-operator-history`.
- **Christopher C Williams et al → Bluewing Materials:** 2024-07-01 through current/open; derived from co-tenure at mine 2302489; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 0 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 37 since 2021:** Violations and penalties 70 violation rows across the full record; 13 carry an S&S flag and $16,515 appears in current assessed amounts.
3. **HEALTH — 10 samples:** Occupational health samples 10 personal. 1 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 7K employee hours and 20 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 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 — 15 since 2021:** Inspections 31 inspection events and 529 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 56.14112 — Construction and maintenance of guards.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **30 CFR 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 56.14132 — Horns and backup alarms.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.12001 — Circuit overload protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12001
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **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 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2017-08-26 through 2017-08-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2016-02-09 through 2016-02-09; source ID `msha-addresses`
- **Assessed Violations:** 70 rows; 2016-02-29 through 2026-05-14; source ID `msha-assessed-violations`
- **Contractor Employment and Production — Quarterly:** 209 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 36 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2015-01-15 through 2024-07-01; source ID `msha-controller-operator-history`
- **Inspections:** 31 rows; 2015-09-18 through 2026-06-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 84 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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:** 10 rows; 2016-11-22 through 2024-09-10; source ID `msha-personal-health-samples`
- **Violations:** 70 rows; 2016-02-29 through 2026-05-14; 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/poplar-bluff-stone-2302489`
- JSON: `/api/v1/mines/poplar-bluff-stone-2302489`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2302489/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2302489/relationships`
- MCP resource: `mine://2302489/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`