MSHA DATABASEMSHA records · 16 contributing sources · snapshot Oct 18, 2026

MINE DETAILS

Turquoise Ridge

ActiveUndergroundGold Ore
MSHA MINE ID2602286
LOCATIONHumboldt, NV
PUBLIC RECORD26,092 linked rows

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

270

20 significant & substantial (S&S)

  1. 2025 Q148
  2. 2025 Q265
  3. 2025 Q337
  4. 2025 Q428
  5. 2026 Q150
  6. 2026 Q228
  7. 2026 Q313
  8. 2026 Q4 *1

Accident records

23

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q45
  5. 2026 Q16
  6. 2026 Q27
  7. 2026 Q34
  8. 2026 Q4 *0

Proposed penalties · USD

375,239.00

253 of 270 violations with amounts

  1. 2025 Q122,572
  2. 2025 Q291,383
  3. 2025 Q321,978
  4. 2025 Q445,735
  5. 2026 Q1113,259
  6. 2026 Q280,312
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

900.00

38 inspections · 38 with hours

  1. 2025 Q1124.00
  2. 2025 Q2163.75
  3. 2025 Q3117.00
  4. 2025 Q498.50
  5. 2026 Q1145.25
  6. 2026 Q2137.25
  7. 2026 Q3112.75
  8. 2026 Q4 *1.50
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q148122,572.00106124.0
2025-Q265991,383.00007163.8
2025-Q337221,978.00003117.0
2025-Q428145,735.0050398.5
2026-Q1503113,259.00605145.3
2026-Q228280,312.00707137.3
2026-Q3132—406112.8
2026-Q4 *10—0011.5

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation9990780

    57.3360 · $818.00 proposed

  2. violation9990779

    57.3360 · $818.00 proposed

  3. violation9990778

    57.3360 · $818.00 proposed

  4. violation9893400

    57.15001 · $398.00 proposed

  5. violation9893399

    57.4201 · $151.00 proposed

  6. violation9680371

    57.20014 · $267.00 proposed

  7. violation9680370

    57.20008(b) · $151.00 proposed

  8. violation9680369

    57.20011 · $151.00 proposed

  9. violation9680368

    57.20013 · $549.00 proposed

  10. violation9680367

    57.20011 · $151.00 proposed

  11. violation9680366

    57.3200 · $504.00 proposed

  12. violation9680262

    57.9301 · $398.00 proposed

  13. violation9680261

    57.4201(a)(2) · $366.00 proposed

  14. violation9680260

    57.20003(a) · $432.00 proposed

  15. violation9680258

    57.20011 · $267.00 proposed

  16. violation9680257

    57.14112(b) · $267.00 proposed

  17. violation9680256

    57.4104(b)(1) · $267.00 proposed

  18. violation9680255

    57.12028 · $398.00 proposed

  19. violation5104004

    47.41(a) · $366.00 proposed

  20. violation5104003

    57.4201(a)(2) · $504.00 proposed

  21. violation5104002

    57.4200(b)(2) · $267.00 proposed

  22. violation5104001

    57.11001 · $193.00 proposed

  23. violation9990777

    57.3200 · $267.00 proposed

  24. violation9990776

    57.3360 · $959.00 proposed

  25. violation9990775

    57.3360 · $432.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

OWNERSHIP

Operator and controller history

Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.

CURRENT HIERARCHYBarrick Nevada Holding LLC; Newmont USA Limited → Nevada Gold Mines LLC → Turquoise Ridge
HISTORY RECORDS615 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Barrick Nevada Holding LLC et alcontrolsNevada Gold Mines LLCoperatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
—

Newmont USA Limited et alcontrolsNevada Gold Mines LLCoperatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
—

Barrick Gold CorpcontrolsBarrick Turquoise Ridge, Inc.operatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
—

Placer Dome LtdcontrolsBarrick Turquoise Ridge, Inc.operatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
—

Getchell Gold CorpcontrolsGetchell Gold CorpoperatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
—

First Mississippi CorpcontrolsFirstmiss Gold IncoperatesTurquoise Ridge

msha-controller-operator-history · controller/operator co-tenure derived on mine 2602286
Other historical summaries · source-specific periods

RECORD SUMMARY

Production, safety and enforcement

These summaries use the periods stated on each card, independently of the reporting period above.

01 / SAFETYwatch

Accidents and injuries

491 historical accident/injury rows; 2 coded fatalities and 2,962 lost days across the published record.

ACCIDENT + INJURY RECORD122 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

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.

ENFORCEMENT ACTIVITY1,126 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

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.

OCCUPATIONAL EXPOSURE458 samples
personal-health-samplesarea-samples
04 / PRODUCTIONcontext

Quarterly production and employment

98K employee hours and 593 summed average employees across reported subunits in the latest published quarter.

2026-Q20 tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

380 contested-violation rows, 470 civil-penalty docket/decision rows, and 281 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE1,131 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions
06 / CONTRACTORScontext

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.

ENTITY-LEVEL CONTEXT72 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

473 inspection events and 28K published inspection hours across the historical record.

OVERSIGHT COVERAGE128 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records80 coal · 8 personal · 0 area
Sample status0 not voided0 voided · 8 status not reported
Personal samples with C/E > 118 published ratios · not a citation count
2026 · Mar 4, 2026–May 28, 2026
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
000000202602212200Metal/nonmetal personalQuartz, respirable, >1% QtzRoof Bolter, Rock0.5× published limitConcentration: 0000.54 · limit: 0001.08Source unit unspecifiedNot reportedNO ACTIONInspection F0344EF
000000202602212300Metal/nonmetal personalQuartz, respirable, >1% QtzMucking Mach. Operator0.35× published limitConcentration: 0000.44 · limit: 0001.24Source unit unspecifiedNot reportedNO ACTIONInspection F0344EF
000000202602212400Metal/nonmetal personalQuartz, respirable, >1% QtzRoof Bolter, Rock0× published limitConcentration: 0000.16 · limit: 0000.00Source unit unspecifiedNot reportedNO ACTIONInspection F0344EF
000000202600824100Metal/nonmetal personalQuartz, respirable, >1% QtzUtility Man0.75× published limitConcentration: 0000.86 · limit: 0001.15Source unit unspecifiedNot reportedNO ACTIONInspection 6965170
000000202600824200Metal/nonmetal personalQuartz, respirable, >1% QtzUtility Man2.52× published limitConcentration: 0002.55 · limit: 0001.01Source unit unspecifiedNot reportedNO ACTIONInspection 6965170
000000202600824300Metal/nonmetal personalQuartz, respirable, >1% QtzShotcrete/Gunite Man0.94× published limitConcentration: 0001.12 · limit: 0001.19Source unit unspecifiedNot reportedNO ACTIONInspection 6965170
000000202600824400Metal/nonmetal personalQuartz, respirable, >1% QtzShotcrete/Gunite Man0.49× published limitConcentration: 0000.65 · limit: 0001.32Source unit unspecifiedNot reportedNO ACTIONInspection 6965170
000000202600824500Metal/nonmetal personalQuartz, respirable, >1% QtzShotcrete/Gunite Man0.45× published limitConcentration: 0000.62 · limit: 0001.37Source unit unspecifiedNot reportedNO ACTIONInspection 6965170
Sources and interpretation
  • Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
  • Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
  • Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
  • Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
  • Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.

Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗

EIA + TITLE 30

EIA production and cited regulations

EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.

RECENT PUBLIC RECORDS

Recent violations and samples

Latest records retained for inspection; aggregates above use the full source history.

VIOLATIONS12 latest shown
510959357.3360Citation
510471857.11050(b)Citation
5109590—Order
510471457.14103(b)S&S
510961957.12028Citation
510471357.11001Citation
510961847.41(a)Citation
510961757.11052(d)Citation
OTHER HEALTH SAMPLES4 latest shown

Coal dust, noise and other contaminants. Silica records above ↑

TC from EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC @ 160Truck Driver
C/E: 00.39Concentration: 0062.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
EC @ 160Truck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

16 datasets contain linked records. Missing datasets are listed below.

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors491Jan 11, 2000—Sep 16, 2026mine-keyed
Addresses of Recordidentity · logistics1Mar 7, 2002—Mar 7, 2002mine-keyed
Assessed Violationscompliance · legal3,615Feb 2, 2000—Jun 2, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal470Jan 24, 2000—May 11, 2026mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal281Mar 3, 2000—Aug 4, 2026mine-keyed
Contested Violationscompliance · legal380Jul 22, 2005—Apr 21, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety12,804Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety2,924Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance6Jan 1, 1996—Jul 29, 2019mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance398Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance84Not published—Not publishedmine-keyed
Inspectionssafety · compliance473Jan 31, 2000—Oct 5, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety61Jan 12, 2010—May 28, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety397Jul 9, 2002—May 28, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal3,706Feb 2, 2000—Oct 1, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable

NOTES

Limitations

  • Contractor production is entity-level and is never represented as mine-attributable.
  • Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.