# La Sal Complex

- **MSHA mine ID:** 4200769
- **Status:** Temporarily Idled
- **Type / commodity:** Underground / Uranium Ore
- **Location:** San Juan, UT
- **Operator:** EFR Colorado Plateau LLC
- **Controller:** Energy Fuels Inc
- **Public source rows linked:** 995
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Energy Fuels Inc (0175160) → EFR Colorado Plateau LLC (0200615) → La Sal Complex (4200769)**

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

## Controller and operator valid-time history

- **Union Carbide Corp → Umetco Minerals Corp:** 1950-01-01 through 2010-12-31; derived from co-tenure at mine 4200769; source `msha-controller-operator-history`.
- **International Uranium Corp → Energy Fuels Resources (USA) Inc.:** 2011-01-01 through 2023-02-12; derived from co-tenure at mine 4200769; source `msha-controller-operator-history`.
- **Energy Fuels Inc → Energy Fuels Resources (USA) Inc.:** 2023-02-13 through 2025-02-09; derived from co-tenure at mine 4200769; source `msha-controller-operator-history`.
- **Energy Fuels Inc → EFR Colorado Plateau LLC:** 2025-02-10 through current/open; derived from co-tenure at mine 4200769; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- 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 7 historical accident/injury rows; 0 coded fatalities and 74 lost days across the published record.
2. **COMPLIANCE — 90 since 2021:** Violations and penalties 159 violation rows across the full record; 34 carry an S&S flag and $27,520 appears in current assessed amounts.
3. **HEALTH — 235 samples:** Occupational health samples 208 personal; 27 area. 12 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 30K employee hours and 55 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 65 linked rows:** Contests, conferences and decisions 26 contested-violation rows, 26 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 4 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 — 28 since 2021:** Inspections 57 inspection events and 3K 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 57.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12028
- **30 CFR 57.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4201
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.11058 — Check-in, check-out system.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11058
- **30 CFR 57.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4200
- **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 57.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15004
- **30 CFR 50.20-6 — Criteria—MSHA Form 7000-1, Section C.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20-6
- **30 CFR 50.10 — Immediate notification.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.10
- **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 57.5039 — Maximum permissible concentration.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5039

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2011-05-31 through 2026-06-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-09-23 through 2026-09-23; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 27 rows; 2024-02-21 through 2025-12-07; source ID `msha-area-samples`
- **Assessed Violations:** 158 rows; 2011-05-03 through 2026-08-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 26 rows; 2012-08-01 through 2025-06-27; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 13 rows; 2011-12-05 through 2011-12-05; source ID `msha-conferences`
- **Contested Violations:** 26 rows; 2011-05-03 through 2026-06-16; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 120 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 31 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2025-02-10; source ID `msha-controller-operator-history`
- **Inspections:** 57 rows; 2011-05-02 through 2026-07-20; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 127 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 30 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:** 208 rows; 2011-05-10 through 2026-08-11; source ID `msha-personal-health-samples`
- **Violations:** 159 rows; 2011-05-03 through 2026-08-13; 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/la-sal-complex-4200769`
- JSON: `/api/v1/mines/la-sal-complex-4200769`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4200769/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4200769/relationships`
- MCP resource: `mine://4200769/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`