# Mill/Autoclave Operations

- **MSHA mine ID:** 2602674
- **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:** 9,976
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Barrick Nevada Holding LLC; Newmont USA Limited (0149763) → Nevada Gold Mines LLC (0165474) → Mill/Autoclave Operations (2602674)**

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 2602674; 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 2602674; 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 2602674; 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 — 30 since 2021:** Accidents and injuries 107 historical accident/injury rows; 0 coded fatalities and 2,011 lost days across the published record.
2. **COMPLIANCE — 355 since 2021:** Violations and penalties 923 violation rows across the full record; 148 carry an S&S flag and $941,692 appears in current assessed amounts.
3. **HEALTH — 138 samples:** Occupational health samples 138 personal. 1 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 117K employee hours and 249 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 294 linked rows:** Contests, conferences and decisions 121 contested-violation rows, 121 civil-penalty docket/decision rows, and 52 conference records linked by issuance number.
6. **CONTRACTORS — 35 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 — 35 since 2021:** Inspections 120 inspection events and 6K 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 56.12004 — Electrical conductors.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.12002 — Controls and switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12002
- **30 CFR 56.12032 — Inspection and cover plates.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **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 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001
- **30 CFR 56.17001 — Illumination of surface working areas.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-P/section-56.17001
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005

## Source coverage

- **Accident, Injuries, and Illnesses:** 107 rows; 2009-09-14 through 2026-09-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-10-02 through 2012-10-02; source ID `msha-addresses`
- **Assessed Violations:** 915 rows; 2009-05-27 through 2026-06-28; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 121 rows; 2011-05-11 through 2026-05-26; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 52 rows; 2010-09-07 through 2025-11-20; source ID `msha-conferences`
- **Contested Violations:** 121 rows; 2009-05-27 through 2025-08-28; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 6,095 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 1,208 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:** 120 rows; 2009-05-26 through 2026-09-30; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 138 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:** 138 rows; 2009-06-09 through 2018-10-15; source ID `msha-personal-health-samples`
- **Violations:** 923 rows; 2009-05-27 through 2026-06-28; 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/mill-autoclave-operations-2602674`
- JSON: `/api/v1/mines/mill-autoclave-operations-2602674`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602674/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602674/relationships`
- MCP resource: `mine://2602674/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`