# Navajo Mine

- **MSHA mine ID:** 2900097
- **Status:** Active
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** San Juan, NM
- **Operator:** Bisti Fuels Company LLC
- **Controller:** Navajo Transitional Energy Company LLC
- **Public source rows linked:** 14,167
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-18T09:31:49.615Z

## Current entity hierarchy

**Navajo Transitional Energy Company LLC (0164461) → Bisti Fuels Company LLC (0149113) → Navajo Mine (2900097)**

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

## Controller and operator valid-time history

- **General Electric Company → Utah International Inc:** 1950-01-01 through 1984-04-01; derived from co-tenure at mine 2900097; source `msha-controller-operator-history`.
- **BHP Billiton → BHP Navajo Coal Company:** 1984-04-02 through 2013-12-30; derived from co-tenure at mine 2900097; source `msha-controller-operator-history`.
- **Navajo Nation → BHP Billiton Mine Management Company:** 2013-12-31 through 2016-12-31; derived from co-tenure at mine 2900097; source `msha-controller-operator-history`.
- **NACCO Industries Inc → Bisti Fuels Company LLC:** 2017-01-01 through 2021-09-30; derived from co-tenure at mine 2900097; source `msha-controller-operator-history`.
- **Navajo Transitional Energy Company LLC → BHP Billiton Mine Management Company:** 2019-10-25 through 2016-12-31; derived from co-tenure at mine 2900097; source `msha-controller-operator-history`.
- **Navajo Transitional Energy Company LLC → Bisti Fuels Company LLC:** 2021-10-01 through current/open; derived from co-tenure at mine 2900097; 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: 2026-10-18T09:31:49.615908+00:00.

## Assessment signals

1. **SAFETY — 21 since 2021:** Accidents and injuries 207 historical accident/injury rows; 0 coded fatalities and 6,205 lost days across the published record.
2. **COMPLIANCE — 101 since 2021:** Violations and penalties 1,303 violation rows across the full record; 412 carry an S&S flag and $1,187,645 appears in current assessed amounts.
3. **HEALTH — 2K samples:** Occupational health samples 1,197 coal dust; 73 coal quartz; 242 noise. 0 personal-sample rows have a published C/E ratio above 1; 3 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 — 1.1M tons:** Quarterly production and employment 171K employee hours and 348 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 319 linked rows:** Contests, conferences and decisions 119 contested-violation rows, 135 civil-penalty docket/decision rows, and 65 conference records linked by issuance number.
6. **CONTRACTORS — 52 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 — 33 since 2021:** Inspections 268 inspection events and 18K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 4,759,297 short tons
- **Labor hours:** 665,360
- **Average employees:** 345
- **Coal supply region:** Western
- **Union code:** International Union Of Operation Engineers
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.502 — Electric equipment; examination, testing, and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502
- **30 CFR 77.205 — Travelways at surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205
- **30 CFR 77.210 — Hoisting of materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.210
- **30 CFR 77.509 — Transformers; installation and guarding.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.509
- **30 CFR 77.1101 — Escape and evacuation; plan.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1101
- **30 CFR 77.1110 — Examination and maintenance of firefighting equipment.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.1605 — Loading and haulage equipment; installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605
- **30 CFR 77.410 — Mobile equipment; automatic warning devices.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410

## Source coverage

- **Accident, Injuries, and Illnesses:** 207 rows; 2000-01-14 through 2026-06-25; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1963-05-06 through 1963-05-06; source ID `msha-addresses`
- **Assessed Violations:** 1,251 rows; 2000-03-27 through 2026-06-03; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 135 rows; 2001-03-08 through 2023-09-29; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 1,197 rows; 2000-01-12 through 2026-09-21; source ID `msha-coal-dust-samples`
- **Conferences:** 65 rows; 2002-04-18 through 2026-07-13; source ID `msha-conferences`
- **Contested Violations:** 119 rows; 2004-01-21 through 2023-01-30; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 7,339 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,614 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2017-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 268 rows; 2000-03-27 through 2026-10-06; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 277 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 69 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 242 rows; 2000-05-11 through 2026-08-12; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 73 rows; 2000-06-21 through 2025-11-12; source ID `msha-quartz-samples`
- **Violations:** 1,303 rows; 2000-03-27 through 2026-10-06; 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/navajo-mine-2900097`
- JSON: `/api/v1/mines/navajo-mine-2900097`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2900097/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2900097/relationships`
- MCP resource: `mine://2900097/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`