# Isabel Operations

- **MSHA mine ID:** 1601364
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Washington, LA
- **Operator:** Lafarge West, Inc.
- **Controller:** Holcim Ltd
- **Public source rows linked:** 425
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Holcim Ltd (0119681) → Lafarge West, Inc. (0050899) → Isabel Operations (1601364)**

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

## Controller and operator valid-time history

- **Texas Industries Inc → TXI:** 2000-06-01 through 2005-03-14; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.
- **Texas Industries Inc → TXI Operations LP:** 2005-03-15 through 2008-05-31; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge Aggregates Southeast Inc:** 2008-06-01 through 2013-03-20; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.
- **Lafarge S A → Lafarge West, Inc.:** 2013-03-21 through 2015-07-09; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.
- **Martin Marietta Materials Inc → TXI Operations LP:** 2014-07-02 through 2008-05-31; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.
- **Holcim Ltd → Lafarge West, Inc.:** 2015-07-10 through current/open; derived from co-tenure at mine 1601364; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 16
- 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 — 0 since 2021:** Accidents and injuries 28 historical accident/injury rows; 0 coded fatalities and 345 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 82 violation rows across the full record; 21 carry an S&S flag and $19,546 appears in current assessed amounts.
3. **HEALTH — 21 samples:** Occupational health samples 21 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 2K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 8 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 6 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 40 inspection events and 646 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 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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 56.16005 — Securing gas cylinders.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **30 CFR 56.9101 — Operating speeds and control of equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9101
- **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 56.12016 — Work on electrically-powered equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12016
- **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 56.12032 — 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

## Source coverage

- **Accident, Injuries, and Illnesses:** 28 rows; 2002-02-21 through 2014-10-28; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2016-03-02 through 2016-03-02; source ID `msha-addresses`
- **Assessed Violations:** 81 rows; 2000-09-14 through 2016-01-08; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2014-07-30 through 2014-07-30; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 6 rows; 2005-06-14 through 2005-06-14; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2014-02-04 through 2014-02-04; source ID `msha-contested-violations`
- **Controller and Operator History:** 6 rows; 2000-06-01 through 2013-03-21; source ID `msha-controller-operator-history`
- **Inspections:** 40 rows; 2000-09-14 through 2016-01-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 124 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 33 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:** 21 rows; 2001-01-18 through 2013-03-05; source ID `msha-personal-health-samples`
- **Violations:** 82 rows; 2000-09-14 through 2016-01-08; 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/isabel-operations-1601364`
- JSON: `/api/v1/mines/isabel-operations-1601364`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1601364/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1601364/relationships`
- MCP resource: `mine://1601364/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`