# Deserado Mine

- **MSHA mine ID:** 0503505
- **Status:** Active
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Rio Blanco, CO
- **Operator:** Blue Mountain Energy Inc
- **Controller:** Deseret Generation & Transmission Co-operative
- **Public source rows linked:** 25,533
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Deseret Generation & Transmission Co-operative (C15485) → Blue Mountain Energy Inc (P23561) → Deserado Mine (0503505)**

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

## Controller and operator valid-time history

- **Western Fuels Association Inc → Western Fuels-Utah Inc:** 1979-12-01 through 1996-10-15; derived from co-tenure at mine 0503505; source `msha-controller-operator-history`.
- **Deseret Generation & Transmission Co-operative → Blue Mountain Energy Inc:** 1996-10-16 through current/open; derived from co-tenure at mine 0503505; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 — 36 since 2021:** Accidents and injuries 340 historical accident/injury rows; 1 coded fatalities and 7,657 lost days across the published record.
2. **COMPLIANCE — 427 since 2021:** Violations and penalties 4,497 violation rows across the full record; 601 carry an S&S flag and $2,242,988 appears in current assessed amounts.
3. **HEALTH — 11K samples:** Occupational health samples 9,565 coal dust; 408 coal quartz; 595 noise. 0 personal-sample rows have a published C/E ratio above 1; 154 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 — 233K tons:** Quarterly production and employment 71K employee hours and 159 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 745 linked rows:** Contests, conferences and decisions 294 contested-violation rows, 306 civil-penalty docket/decision rows, and 145 conference records linked by issuance number.
6. **CONTRACTORS — 17 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 — 38 since 2021:** Inspections 442 inspection events and 50K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 1,907,363 short tons
- **Labor hours:** 318,930
- **Average employees:** 167
- **Coal supply region:** Uinta Region
- **Union code:** United Mine Workers Of America
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 75.312 — Main mine fan examinations and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.312
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.1403 — Daily examination of hoisting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-O/section-77.1403
- **30 CFR 77.204 — Openings in surface installations; safeguards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.204
- **30 CFR 77.904 — Identification of circuit breakers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.904
- **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 75.1106-3 — Storage of liquefied and nonliquefied compressed gas cylinders; requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1106-3
- **30 CFR 75.400 — Accumulation of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400
- **30 CFR 75.503 — Permissible electric face equipment; maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503
- **30 CFR 75.1725 — Machinery and equipment; operation and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725
- **30 CFR 75.380 — Escapeways; bituminous and lignite mines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.380
- **30 CFR 75.333 — Ventilation controls.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333

## Source coverage

- **Accident, Injuries, and Illnesses:** 340 rows; 2000-01-05 through 2026-08-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1996-10-20 through 1996-10-20; source ID `msha-addresses`
- **Assessed Violations:** 4,426 rows; 2000-02-07 through 2026-08-31; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 306 rows; 2001-05-21 through 2025-12-05; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 9,565 rows; 2000-01-18 through 2026-10-08; source ID `msha-coal-dust-samples`
- **Conferences:** 145 rows; 2000-02-13 through 2026-03-16; source ID `msha-conferences`
- **Contested Violations:** 294 rows; 2004-07-15 through 2026-05-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,323 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 656 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1979-12-01 through 1996-10-16; source ID `msha-controller-operator-history`
- **Inspections:** 442 rows; 2000-01-05 through 2026-10-01; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 424 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 108 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 595 rows; 2000-08-09 through 2026-08-18; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 408 rows; 2000-01-25 through 2026-08-25; source ID `msha-quartz-samples`
- **Violations:** 4,497 rows; 2000-02-07 through 2026-09-17; 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/deserado-mine-0503505`
- JSON: `/api/v1/mines/deserado-mine-0503505`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0503505/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0503505/relationships`
- MCP resource: `mine://0503505/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`