# PINYON PLAIN MINE

- **MSHA mine ID:** 0203305
- **Status:** Active
- **Type / commodity:** Underground / Uranium Ore
- **Location:** Coconino, AZ
- **Operator:** EFR ARIZONA STRIP LLC.
- **Controller:** Energy Fuels Inc
- **Public source rows linked:** 1,157
- **Source coverage:** 14 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Energy Fuels Inc (0175160) → EFR ARIZONA STRIP LLC. (0200614) → PINYON PLAIN MINE (0203305)**

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

## Controller and operator valid-time history

- **International Uranium Corp → Energy Fuels Resources (USA) Inc.:** 2012-09-06 through 2023-02-12; derived from co-tenure at mine 0203305; source `msha-controller-operator-history`.
- **Energy Fuels Inc → Energy Fuels Resources (USA) Inc.:** 2023-02-13 through 2025-02-13; derived from co-tenure at mine 0203305; source `msha-controller-operator-history`.
- **Energy Fuels Inc → EFR Arizona Strip LLC.:** 2025-02-14 through current/open; derived from co-tenure at mine 0203305; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 8
- 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 12 historical accident/injury rows; 0 coded fatalities and 87 lost days across the published record.
2. **COMPLIANCE — 44 since 2021:** Violations and penalties 115 violation rows across the full record; 18 carry an S&S flag and $20,640 appears in current assessed amounts.
3. **HEALTH — 24 samples:** Occupational health samples 22 personal; 2 area. 5 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 18K employee hours and 35 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 2 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 27 since 2021:** Inspections 66 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 57.15031 — Location of self-rescue devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15031
- **30 CFR 57.12030 — Correction of dangerous conditions.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12030
- **30 CFR 57.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14207
- **30 CFR 57.14132 — Horns and backup alarms for surface equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14132
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 57.4100 — Smoking and use of open flames.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4100
- **30 CFR 57.14115 — Stationary grinding machines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14115
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.20032 — Two-way communication equipment for underground operations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20032
- **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 57.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-H/section-57.9300

## Source coverage

- **Accident, Injuries, and Illnesses:** 12 rows; 2013-06-11 through 2026-05-15; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-06-18 through 2026-06-18; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 2 rows; 2025-08-20 through 2025-08-20; source ID `msha-area-samples`
- **Assessed Violations:** 111 rows; 2013-05-21 through 2026-08-20; source ID `msha-assessed-violations`
- **Conferences:** 2 rows; 2016-03-11 through 2017-06-14; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 503 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 121 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2012-09-06 through 2025-02-14; source ID `msha-controller-operator-history`
- **Inspections:** 66 rows; 2013-05-21 through 2026-08-17; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 156 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 42 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:** 22 rows; 2013-05-22 through 2025-11-20; source ID `msha-personal-health-samples`
- **Violations:** 115 rows; 2013-05-21 through 2026-08-20; 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/pinyon-plain-mine-0203305`
- JSON: `/api/v1/mines/pinyon-plain-mine-0203305`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0203305/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0203305/relationships`
- MCP resource: `mine://0203305/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`