# Turquoise Ridge

- **MSHA mine ID:** 2602286
- **Status:** Active
- **Type / commodity:** Underground / Gold Ore
- **Location:** Humboldt, NV
- **Operator:** Nevada Gold Mines LLC
- **Controller:** Barrick Nevada Holding LLC; Newmont USA Limited
- **Public source rows linked:** 26,092
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Barrick Nevada Holding LLC; Newmont USA Limited (0149763) → Nevada Gold Mines LLC (0165474) → Turquoise Ridge (2602286)**

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

## Controller and operator valid-time history

- **First Mississippi Corp → Firstmiss Gold Inc:** 1996-01-01 through 1996-06-30; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.
- **Getchell Gold Corp → Getchell Gold Corp:** 1996-07-01 through 1999-05-27; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.
- **Placer Dome Ltd → Barrick Turquoise Ridge, Inc.:** 1999-05-28 through 2006-06-08; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.
- **Barrick Gold Corp → Barrick Turquoise Ridge, Inc.:** 2006-06-09 through 2019-07-28; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.
- **Barrick Nevada Holding LLC et al → Nevada Gold Mines LLC:** 2019-07-29 through current/open; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.
- **Newmont USA Limited et al → Nevada Gold Mines LLC:** 2019-07-29 through current/open; derived from co-tenure at mine 2602286; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 15
- 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 — 122 since 2021:** Accidents and injuries 491 historical accident/injury rows; 2 coded fatalities and 2,962 lost days across the published record.
2. **COMPLIANCE — 1,126 since 2021:** Violations and penalties 3,706 violation rows across the full record; 717 carry an S&S flag and $3,414,639 appears in current assessed amounts.
3. **HEALTH — 458 samples:** Occupational health samples 397 personal; 61 area. 52 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 98K employee hours and 593 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1,131 linked rows:** Contests, conferences and decisions 380 contested-violation rows, 470 civil-penalty docket/decision rows, and 281 conference records linked by issuance number.
6. **CONTRACTORS — 72 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 — 128 since 2021:** Inspections 473 inspection events and 28K 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 57.3360 — Ground support use.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3360
- **30 CFR 57.11050 — Escapeways and refuges.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11050
- **30 CFR 57.14103 — Operators' stations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14103
- **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 57.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11001
- **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 57.11052 — Refuge areas.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11052
- **30 CFR 57.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11003
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11012

## Source coverage

- **Accident, Injuries, and Illnesses:** 491 rows; 2000-01-11 through 2026-09-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2002-03-07 through 2002-03-07; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 61 rows; 2010-01-12 through 2026-05-28; source ID `msha-area-samples`
- **Assessed Violations:** 3,615 rows; 2000-02-02 through 2026-06-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 470 rows; 2000-01-24 through 2026-05-11; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 281 rows; 2000-03-03 through 2026-08-04; source ID `msha-conferences`
- **Contested Violations:** 380 rows; 2005-07-22 through 2026-04-21; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 12,804 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 2,924 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 1996-01-01 through 2019-07-29; source ID `msha-controller-operator-history`
- **Inspections:** 473 rows; 2000-01-31 through 2026-10-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 398 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 84 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:** 397 rows; 2002-07-09 through 2026-05-28; source ID `msha-personal-health-samples`
- **Violations:** 3,706 rows; 2000-02-02 through 2026-10-01; 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/turquoise-ridge-2602286`
- JSON: `/api/v1/mines/turquoise-ridge-2602286`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602286/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602286/relationships`
- MCP resource: `mine://2602286/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`