MINE DETAILS
Leeville
MSHA MINE ID2602512
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Leeville40.71389, -116.10389Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
1,966,011reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 332,185 | 0.00 | 648 | 1/1 mines reporting |
| 2025 Q2 | 0 | 333,567 | 0.00 | 647 | 1/1 mines reporting |
| 2025 Q3 | 0 | 324,231 | 0.00 | 645 | 1/1 mines reporting |
| 2025 Q4 | 0 | 334,736 | 0.00 | 640 | 1/1 mines reporting |
| 2026 Q1 | 0 | 318,829 | 0.00 | 626 | 1/1 mines reporting |
| 2026 Q2 | 0 | 322,463 | 0.00 | 637 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
37131 significant & substantial (S&S)
Accident records
100 records classified as fatality
Proposed penalties · USD
453,236.00365 of 371 violations with amounts
On-site inspection hours
1,214.0033 inspections · 33 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 32 | 0 | 16,260.00 | 2 | 0 | 4 | 100.0 |
| 2025-Q2 | 70 | 7 | 64,147.00 | 0 | 0 | 3 | 195.5 |
| 2025-Q3 | 111 | 12 | 185,940.00 | 0 | 0 | 5 | 245.5 |
| 2025-Q4 | 48 | 3 | 39,111.00 | 3 | 0 | 6 | 160.5 |
| 2026-Q1 | 49 | 4 | 67,034.00 | 2 | 0 | 7 | 205.5 |
| 2026-Q2 | 15 | 2 | 18,000.00 | 2 | 0 | 1 | 99.5 |
| 2026-Q3 | 46 | 3 | 62,744.00 | 1 | 0 | 7 | 207.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Special Emphasis Programs · 1.0 on-site hours
Compliance Follow-up Inspection · 8.0 on-site hours
Verbal Hazard Complaint Inspections · 4.3 on-site hours
57.12013 · $366.00 proposed
57.14100(b) · $818.00 proposed
57.9313 · $1,968.00 proposed
57.14100(b) · $1,818.00 proposed
57.6202(b)(1) · $549.00 proposed
57.3360 · $1,219.00 proposed
57.3360 · $1,219.00 proposed
57.14112(a) · $1,219.00 proposed
57.14100(c) · $313.00 proposed
57.4761(a) · S&S · $21,713.00 proposed
57.4761(a)(2)(iii) · $366.00 proposed
57.20003(a) · $697.00 proposed
57.9313 · $267.00 proposed
57.3360 · $1,219.00 proposed
57.12013(b) · $549.00 proposed
57.3360 · $1,219.00 proposed
57.20003(b) · $366.00 proposed
57.3360 · $1,818.00 proposed
57.11001 · $592.00 proposed
57.11001 · $592.00 proposed
57.8529 · $883.00 proposed
57.4760(a)(1)(iv) · $549.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
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.
—
Barrick Nevada Holding LLC et alcontrolsNevada Gold Mines LLCoperatesLeeville
msha-controller-operator-history · controller/operator co-tenure derived on mine 2602512—
Newmont USA Limited et alcontrolsNevada Gold Mines LLCoperatesLeeville
msha-controller-operator-history · controller/operator co-tenure derived on mine 2602512—
Newmont CorporationcontrolsNewmont USA LimitedoperatesLeeville
msha-controller-operator-history · controller/operator co-tenure derived on mine 2602512Other 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
324 historical accident/injury rows; 1 coded fatalities and 3,717 lost days across the published record.
ACCIDENT + INJURY RECORD27 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
2,788 violation rows across the full record; 453 carry an S&S flag and $2,943,991 appears in current assessed amounts.
ENFORCEMENT ACTIVITY804 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
358 personal; 7 area. 60 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 EXPOSURE365 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
322K employee hours and 637 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
473 contested-violation rows, 475 civil-penalty docket/decision rows, and 216 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE1,164 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / 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 CONTEXT51 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
351 inspection events and 20K published inspection hours across the historical record.
OVERSIGHT COVERAGE77 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 63 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| 000000202603700300 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Mechanic | 0.44× published limitConcentration: 0000.27 · limit: 0000.61Source unit unspecified | Not reported | NO ACTIONInspection F011AEA |
| 000000202603091800 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Supervisor, Co. Official | 1.69× published limitConcentration: 0000.81 · limit: 0000.48Source unit unspecified | Not reported | CITATION/ORDER EXTENDEDInspection F013EC8 |
| 000000202602092400 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Supervisor, Co. Official | 0.27× published limitConcentration: 0000.21 · limit: 0000.77Source unit unspecified | Not reported | NO ACTIONInspection F011FCF |
| 000000202602092500 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Pump, Slurry Mix Operator | 0.65× published limitConcentration: 0000.32 · limit: 0000.49Source unit unspecified | Not reported | NO ACTIONInspection F011FCF |
| 000000202602092600 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Supervisor, Co. Official | 1.29× published limitConcentration: 0000.67 · limit: 0000.52Source unit unspecified | Not reported | CITATION/ORDER ISSUEDInspection F011FCF |
| 000000202601178700 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Drill Operator, Rotary | 0.47× published limitConcentration: 0000.35 · limit: 0000.74Source unit unspecified | Not reported | CITATION/ORDER TERMINATEDInspection F011ACD |
| 000000202600238200 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Diamond Drill Operator | 3.21× published limitConcentration: 0001.86 · limit: 0000.58Source unit unspecified | Not reported | CITATION/ORDER ISSUEDInspection F011AC9 |
| 000000202600238300 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Utility Man | 0.82× published limitConcentration: 0000.73 · limit: 0000.89Source unit unspecified | Not reported | NO ACTIONInspection F011AC9 |
| 000000202600238400 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Utility Man | 0.86× published limitConcentration: 0000.74 · limit: 0000.86Source unit unspecified | Not reported | NO ACTIONInspection F011AC9 |
| 000000202600238500 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Diamond Drill Operator | 0.25× published limitConcentration: 0000.19 · limit: 0000.77Source unit unspecified | Not reported | NO ACTIONInspection F011AC9 |
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.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 57.12013Splices and repairs of power cables.1 recent row ↗30 CFR 57.14100Safety defects; examination, correction and records.3 recent rows ↗30 CFR 57.9313Roadway maintenance.1 recent row ↗30 CFR 57.6202Vehicles.1 recent row ↗30 CFR 57.3360Ground support use.2 recent rows ↗30 CFR 57.14112Construction and maintenance of guards.1 recent row ↗30 CFR 57.4761Underground shops.2 recent rows ↗30 CFR 57.20003Housekeeping.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
516805657.12013Citation
516805557.14100(b)Citation
516805457.9313Citation
516805357.14100(b)Citation
516805257.6202(b)(1)Citation
510909957.3360Citation
516805157.3360Citation
516805057.14112(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgSupervisor, Co. Official
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors324Apr 20, 2003—Jul 16, 2026mine-keyed
Addresses of Recordidentity · logistics1Jan 2, 2003—Jan 2, 2003mine-keyed
Assessed Violationscompliance · legal2,736Apr 7, 2003—Aug 19, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal475May 14, 2004—Mar 30, 2026mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal216May 8, 2003—Aug 4, 2026mine-keyed
Contested Violationscompliance · legal473Jan 13, 2005—Nov 3, 2025mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety9,642Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety1,999Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance3Nov 15, 2002—Jul 23, 2019mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance279Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance71Not published—Not publishedmine-keyed
Inspectionssafety · compliance351Jan 15, 2003—Sep 30, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety7Nov 5, 2009—Jul 19, 2023mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety358Oct 21, 2003—Sep 3, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal2,788Apr 7, 2003—Aug 19, 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.