# Westlake Plant

- **MSHA mine ID:** 1601299
- **Status:** Abandoned
- **Type / commodity:** Surface / Barite Barium Ore
- **Location:** Calcasieu, LA
- **Operator:** M-I L L C
- **Controller:** Schlumberger Ltd
- **Public source rows linked:** 83
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Schlumberger Ltd (M10297) → M-I L L C (L13501) → Westlake Plant (1601299)**

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

## Controller and operator valid-time history

- **Schlumberger Ltd → M-I L L C:** 1996-03-01 through current/open; derived from co-tenure at mine 1601299; 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: 2026-10-17T05:35:58.500035+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 — 0 since 2021:** Violations and penalties 18 violation rows across the full record; 9 carry an S&S flag and $5,587 appears in current assessed amounts.
3. **HEALTH — 5 samples:** Occupational health samples 5 personal. 0 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 4K employee hours and 8 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 — 0 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 10 inspection events and 112 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12018 — Identification of power switches.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 48.31 — Hazard training.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.31
- **30 CFR 56.14201 — Conveyor start-up warnings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14201
- **30 CFR 56.11002 — Handrails and toeboards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002
- **30 CFR 56.4402 — Safety can use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402
- **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 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **30 CFR 56.15020 — Life jackets and belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15020

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2002-10-31 through 2002-10-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2003-07-11 through 2003-07-11; source ID `msha-addresses`
- **Assessed Violations:** 15 rows; 2000-06-28 through 2003-04-16; source ID `msha-assessed-violations`
- **Controller and Operator History:** 1 rows; 1996-03-01 through 1996-03-01; source ID `msha-controller-operator-history`
- **Inspections:** 10 rows; 2000-06-28 through 2003-04-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 23 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 8 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:** 5 rows; 2000-06-29 through 2003-04-17; source ID `msha-personal-health-samples`
- **Violations:** 18 rows; 2000-06-28 through 2003-04-16; 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/westlake-plant-1601299`
- JSON: `/api/v1/mines/westlake-plant-1601299`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1601299/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1601299/relationships`
- MCP resource: `mine://1601299/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`