# Roaster Operations

- **MSHA mine ID:** 2602673
- **Status:** Active
- **Type / commodity:** Facility / Gold Ore
- **Location:** Eureka, NV
- **Operator:** Nevada Gold Mines LLC
- **Controller:** Barrick Nevada Holding LLC; Newmont USA Limited
- **Public source rows linked:** 5,901
- **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) → Roaster Operations (2602673)**

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

## Controller and operator valid-time history

- **Barrick Gold Corp → Barrick Goldstrike Mines Inc:** 2009-04-30 through 2019-07-22; derived from co-tenure at mine 2602673; source `msha-controller-operator-history`.
- **Newmont USA Limited et al → Nevada Gold Mines LLC:** 2019-07-23 through current/open; derived from co-tenure at mine 2602673; source `msha-controller-operator-history`.
- **Barrick Nevada Holding LLC et al → Nevada Gold Mines LLC:** 2019-07-23 through current/open; derived from co-tenure at mine 2602673; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 7
- 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 — 9 since 2021:** Accidents and injuries 33 historical accident/injury rows; 0 coded fatalities and 838 lost days across the published record.
2. **COMPLIANCE — 201 since 2021:** Violations and penalties 446 violation rows across the full record; 47 carry an S&S flag and $249,362 appears in current assessed amounts.
3. **HEALTH — 88 samples:** Occupational health samples 64 personal; 24 area. 9 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 78K employee hours and 169 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 106 linked rows:** Contests, conferences and decisions 39 contested-violation rows, 39 civil-penalty docket/decision rows, and 28 conference records linked by issuance number.
6. **CONTRACTORS — 23 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 — 50 since 2021:** Inspections 110 inspection events and 4K 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 56.18002 — Examination of working places.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **30 CFR 56.20014 — Prohibited areas for food and beverages.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20014
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004

## Source coverage

- **Accident, Injuries, and Illnesses:** 33 rows; 2009-07-23 through 2026-06-08; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2009-04-30 through 2009-04-30; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 24 rows; 2021-10-20 through 2026-07-23; source ID `msha-area-samples`
- **Assessed Violations:** 444 rows; 2009-08-30 through 2026-07-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 39 rows; 2011-02-02 through 2023-08-22; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 28 rows; 2009-11-24 through 2024-12-17; source ID `msha-conferences`
- **Contested Violations:** 39 rows; 2009-08-30 through 2023-01-06; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 3,755 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 754 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 2009-04-30 through 2019-07-23; source ID `msha-controller-operator-history`
- **Inspections:** 110 rows; 2009-08-30 through 2026-10-05; 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:** 33 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:** 64 rows; 2012-02-08 through 2026-06-23; source ID `msha-personal-health-samples`
- **Violations:** 446 rows; 2009-08-30 through 2026-07-28; 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/roaster-operations-2602673`
- JSON: `/api/v1/mines/roaster-operations-2602673`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602673/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602673/relationships`
- MCP resource: `mine://2602673/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`