# Plant #2

- **MSHA mine ID:** 4400064
- **Status:** Active
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Botetourt, VA
- **Operator:** O-N Minerals (Chemstone Company)
- **Controller:** Carmeuse Holding SA
- **Public source rows linked:** 1,215
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Carmeuse Holding SA (M10266) → O-N Minerals (Chemstone Company) (L16758) → Plant #2 (4400064)**

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

## Controller and operator valid-time history

- **James River Limestone Company Inc → James River Limestone Company Inc:** 1950-01-01 through 1996-06-28; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.
- **Global Stone Corp → Global Stone James River:** 1996-06-29 through 1998-06-21; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.
- **Oglebay Norton Company → O-N Minerals (James River) Company:** 1998-06-22 through 2008-02-12; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.
- **Carmeuse Holding SA → O-N Minerals (James River) Company:** 2008-02-13 through 2009-01-13; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.
- **Oglebay Norton Company → O-N Minerals (Chemstone Company):** 2009-01-14 through 2008-02-12; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.
- **Carmeuse Holding SA → O-N Minerals (Chemstone Company):** 2009-01-14 through current/open; derived from co-tenure at mine 4400064; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 14
- Interval anomalies: 1
- 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 — 2 since 2021:** Accidents and injuries 26 historical accident/injury rows; 0 coded fatalities and 470 lost days across the published record.
2. **COMPLIANCE — 3 since 2021:** Violations and penalties 167 violation rows across the full record; 35 carry an S&S flag and $27,108 appears in current assessed amounts.
3. **HEALTH — 50 samples:** Occupational health samples 50 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 12K employee hours and 26 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 15 linked rows:** Contests, conferences and decisions 5 contested-violation rows, 5 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 7 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 — 12 since 2021:** Inspections 69 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 56.14100 — 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 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.4601 — Oxygen cylinder storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4601
- **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
- **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 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 46.5 — New miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.5
- **30 CFR 46.3 — Training plans.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.3
- **30 CFR 56.13010 — Reciprocating-type air compressors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13010
- **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

## Source coverage

- **Accident, Injuries, and Illnesses:** 26 rows; 2000-01-03 through 2026-01-27; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1979-04-19 through 1979-04-19; source ID `msha-addresses`
- **Assessed Violations:** 166 rows; 2000-02-01 through 2023-06-12; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 5 rows; 2008-05-30 through 2008-12-10; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 5 rows; 2008-02-22 through 2012-03-15; source ID `msha-conferences`
- **Contested Violations:** 5 rows; 2007-11-05 through 2007-11-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 299 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 79 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2009-01-14; source ID `msha-controller-operator-history`
- **Inspections:** 69 rows; 2000-02-01 through 2026-09-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 268 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 68 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:** 50 rows; 2001-07-26 through 2026-04-08; source ID `msha-personal-health-samples`
- **Violations:** 167 rows; 2000-02-01 through 2023-06-12; 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/plant-2-4400064`
- JSON: `/api/v1/mines/plant-2-4400064`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4400064/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4400064/relationships`
- MCP resource: `mine://4400064/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`