# BPM Colony Mill

- **MSHA mine ID:** 4800070
- **Status:** Active
- **Type / commodity:** Facility / Bentonite
- **Location:** Crook, WY
- **Operator:** Bentonite Performance Minerals, LLC
- **Controller:** Halliburton Company
- **Public source rows linked:** 3,621
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Halliburton Company (M00854) → Bentonite Performance Minerals, LLC (L17683) → BPM Colony Mill (4800070)**

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

## Controller and operator valid-time history

- **Nl Industries Inc → Baroid Drilling Fluids Inc:** 1950-01-01 through 1991-11-17; derived from co-tenure at mine 4800070; source `msha-controller-operator-history`.
- **Tremont → Bentonite Corp:** 1991-11-18 through 1994-01-20; derived from co-tenure at mine 4800070; source `msha-controller-operator-history`.
- **Dresser Industries Inc → Bentonite Corp:** 1994-01-21 through 1998-02-25; derived from co-tenure at mine 4800070; source `msha-controller-operator-history`.
- **Halliburton Company → Bentonite Performance Minerals, LLC:** 1998-02-26 through current/open; derived from co-tenure at mine 4800070; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 12
- 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 — 6 since 2021:** Accidents and injuries 65 historical accident/injury rows; 0 coded fatalities and 1,845 lost days across the published record.
2. **COMPLIANCE — 43 since 2021:** Violations and penalties 323 violation rows across the full record; 54 carry an S&S flag and $99,059 appears in current assessed amounts.
3. **HEALTH — 29 samples:** Occupational health samples 29 personal. 3 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 38K employee hours and 76 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 79 linked rows:** Contests, conferences and decisions 36 contested-violation rows, 36 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 13 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 — 16 since 2021:** Inspections 81 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.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.20003 — 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 56.12028 — 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 56.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019
- **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 56.4102 — Spillage and leakage.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4102
- **30 CFR 47.41 — Requirement for container labels.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **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 56.14103 — Operators stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103

## Source coverage

- **Accident, Injuries, and Illnesses:** 65 rows; 2000-06-23 through 2025-07-29; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1991-11-18 through 1991-11-18; source ID `msha-addresses`
- **Assessed Violations:** 320 rows; 2000-02-24 through 2026-06-10; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 36 rows; 2010-09-27 through 2025-11-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2001-04-17 through 2024-10-16; source ID `msha-conferences`
- **Contested Violations:** 36 rows; 2009-07-07 through 2024-09-18; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,998 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 454 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 1998-02-26; source ID `msha-controller-operator-history`
- **Inspections:** 81 rows; 2000-02-24 through 2026-06-09; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 212 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 54 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:** 29 rows; 2004-08-04 through 2024-08-26; source ID `msha-personal-health-samples`
- **Violations:** 323 rows; 2000-02-24 through 2026-06-10; 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/bpm-colony-mill-4800070`
- JSON: `/api/v1/mines/bpm-colony-mill-4800070`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4800070/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4800070/relationships`
- MCP resource: `mine://4800070/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`