# Galveston Grinding Plant

- **MSHA mine ID:** 4102515
- **Status:** Abandoned
- **Type / commodity:** Facility / Barite Barium Ore
- **Location:** Galveston, TX
- **Operator:** M-I L L C
- **Controller:** Schlumberger Ltd
- **Public source rows linked:** 206
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Schlumberger Ltd (M10297) → M-I L L C (L13501) → Galveston Grinding Plant (4102515)**

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

## Controller and operator valid-time history

- **Dresser Industries Inc → Magcobar Minerals Division:** 1950-01-01 through 1987-01-19; derived from co-tenure at mine 4102515; source `msha-controller-operator-history`.
- **Halliburton Co et al → M-I Drilling Fluids Company:** 1987-01-20 through 1994-04-21; derived from co-tenure at mine 4102515; source `msha-controller-operator-history`.
- **Dresser Industries Inc et al → M-I Drilling Fluids Company:** 1987-01-20 through 1994-04-21; derived from co-tenure at mine 4102515; source `msha-controller-operator-history`.
- **Schlumberger Ltd → M-I L L C:** 1994-04-22 through current/open; derived from co-tenure at mine 4102515; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- 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 11 historical accident/injury rows; 0 coded fatalities and 410 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 49 violation rows across the full record; 9 carry an S&S flag and $4,739 appears in current assessed amounts.
3. **HEALTH — 20 samples:** Occupational health samples 18 personal; 2 area. 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 8K employee hours and 21 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 — 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 26 inspection events and 418 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 56.15007 — Protective equipment or clothing for welding, cutting, or working with molten metal.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15007
- **30 CFR 56.12034 — Guarding around lights.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12034
- **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 56.9300 — Berms or guardrails.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **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 56.12008 — 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 56.13021 — High-pressure hose connections.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13021
- **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 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.4203 — Extinguisher recharging or replacement.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4203

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2001-02-21 through 2007-10-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-01-07 through 2009-01-07; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2003-03-18 through 2003-03-18; source ID `msha-area-samples`
- **Assessed Violations:** 49 rows; 2000-08-09 through 2008-04-23; source ID `msha-assessed-violations`
- **Conferences:** 3 rows; 2001-03-26 through 2001-11-27; source ID `msha-conferences`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1994-04-22; source ID `msha-controller-operator-history`
- **Inspections:** 26 rows; 2000-08-09 through 2008-05-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 18 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:** 18 rows; 2001-03-14 through 2008-04-24; source ID `msha-personal-health-samples`
- **Violations:** 49 rows; 2000-08-09 through 2008-04-23; 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/galveston-grinding-plant-4102515`
- JSON: `/api/v1/mines/galveston-grinding-plant-4102515`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4102515/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4102515/relationships`
- MCP resource: `mine://4102515/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`