MINE DETAILS
Pinto Valley Mine
MSHA MINE ID0201049
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Pinto Valley Mine33.39333, -110.97111Open 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
2,290,107reported 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 | 355,025 | 0.00 | 699 | 1/1 mines reporting |
| 2025 Q2 | 0 | 379,222 | 0.00 | 714 | 1/1 mines reporting |
| 2025 Q3 | 0 | 384,233 | 0.00 | 728 | 1/1 mines reporting |
| 2025 Q4 | 0 | 387,923 | 0.00 | 722 | 1/1 mines reporting |
| 2026 Q1 | 0 | 375,780 | 0.00 | 790 | 1/1 mines reporting |
| 2026 Q2 | 0 | 407,924 | 0.00 | 772 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
15522 significant & substantial (S&S)
Accident records
350 records classified as fatality
Proposed penalties · USD
103,145.00132 of 155 violations with amounts
On-site inspection hours
649.2519 inspections · 19 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 | 0 | 0 | — | 5 | 0 | 2 | 21.0 |
| 2025-Q2 | 0 | 0 | — | 9 | 0 | 0 | — |
| 2025-Q3 | 49 | 3 | 38,569.00 | 8 | 0 | 3 | 194.3 |
| 2025-Q4 | 28 | 5 | 47,282.00 | 6 | 0 | 5 | 145.5 |
| 2026-Q1 | 2 | 2 | 4,143.00 | 1 | 0 | 2 | 15.8 |
| 2026-Q2 | 74 | 12 | 13,151.00 | 1 | 0 | 4 | 258.0 |
| 2026-Q3 | 2 | 0 | — | 5 | 0 | 3 | 14.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
On September 18, 2026, the employee was closing overhead cutouts at the SX using an extended hot stick. While extending their right arm upward and outward to close the cutout, the employee experienced discomfort in their right bicep.
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While stepping down from the Rougher Box platform, the worker experienced sudden left shoulder pain with a popping sensation. The worker stopped work and reported the injury. Medical evaluation resulted in medication and referral to a physical therapist for further treatment.
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
On September 18th, 2026 the employee was closing overhead cutouts at the SX using an extendable hot stick. While extending their right arm upward and outward to close the switch, the employee experienced discomfort in the right bicep.
56.16003
56.20011
103 (g) Written Notification Hazard Complaint Inspectio · 9.0 on-site hours
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While changing bands on the cyclone, the employee encountered a stuck bolt. The employee attempted to release the band from the socket and accidentally activated the trigger on the impact tool, causing the metal band to spin and resulting in a small laceration to each hand. The employee received a couple of stitches, was released by medical personnel and returned to work.
Verbal Hazard Complaint Inspections · 1.0 on-site hours
103 (g) Written Notification Hazard Complaint Inspectio · 4.8 on-site hours
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Two employees were working together to stack filter plates. while one employee was positioning a plate, the plate was pushed from the other side, pinning the employee's left thumb between the plate and an i-beam.
41.12 · $151.00 proposed
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While attempting to repair a leak on the antiscalant line, the EE was inspecting the piping to determine the correct diameter and obtain the appropriate fittings for the repair. The EE released the line, causing it to suddenly recoil and whip back. As a result, antiscalant solution was splashed toward the EE's face, bypassing the safety glasses and entering EE's right eye.
56.4201(a)(1) · $151.00 proposed
56.18002 · S&S
56.20003(a) · $151.00 proposed
47.41(a) · $151.00 proposed
47.41(a) · $151.00 proposed
56.4104(b) · $151.00 proposed
56.4130(a)(2) · $151.00 proposed
47.41(a) · $151.00 proposed
56.15001 · S&S · $959.00 proposed
56.14132(a) · $151.00 proposed
56.12018 · $151.00 proposed
56.12025 · $193.00 proposed
47.41(a) · $151.00 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.
—
Capstone Copper CorpcontrolsPinto Valley Mining Corp.operatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049—
BHP BillitoncontrolsBHP Copper IncoperatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049—
Broken Hill Proprietary Company LtdcontrolsBHP Copper IncoperatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049—
Magma Copper CompanycontrolsMagma Copper CompanyoperatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049—
Newmont CorporationcontrolsPinto Valley Copper CorpoperatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049—
Cities Service CompanycontrolsCities Service CompanyoperatesPinto Valley Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0201049Other 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
339 historical accident/injury rows; 2 coded fatalities and 5,344 lost days across the published record.
ACCIDENT + INJURY RECORD88 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,817 violation rows across the full record; 435 carry an S&S flag and $1,461,951 appears in current assessed amounts.
ENFORCEMENT ACTIVITY513 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
102 personal; 89 area. 21 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 EXPOSURE191 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
408K employee hours and 772 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
230 contested-violation rows, 225 civil-penalty docket/decision rows, and 46 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE501 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 CONTEXT88 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
247 inspection events and 12K published inspection hours across the historical record.
OVERSIGHT COVERAGE69 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 57 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 |
|---|---|---|---|---|---|
| 000000202602451300 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Drill Operator, Rotary | 0.19× published limitConcentration: 0000.19 · limit: 0001.02Source unit unspecified | Not reported | NO ACTIONInspection F0370E7 |
| 000000202602451400 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Drill Operator, Rotary | 0.27× published limitConcentration: 0000.17 · limit: 0000.63Source unit unspecified | Not reported | NO ACTIONInspection F0370E7 |
| 000000202602450800 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Crusher Oper/Worker | 0.83× published limitConcentration: 0000.53 · limit: 0000.64Source unit unspecified | Not reported | NO ACTIONInspection F0370E7 |
| 000000202602450900 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Mechanic | 1.07× published limitConcentration: 0001.08 · limit: 0001.01Source unit unspecified | Not reported | LAB RESULTS INDICATE EXPOSURE LIMIT EXCEEDEDInspection F0370E7 |
| 000000202602451000 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Mechanic | 1.19× published limitConcentration: 0000.95 · limit: 0000.80Source unit unspecified | Not reported | LAB RESULTS INDICATE EXPOSURE LIMIT EXCEEDEDInspection F0370E7 |
| 000000202602451100 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Crusher Oper/Worker | 0.6× published limitConcentration: 0000.36 · limit: 0000.60Source unit unspecified | Not reported | NO ACTIONInspection F0370E7 |
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 56.16003Storage of hazardous materials.1 recent row ↗30 CFR 56.20011Barricades and warning signs.1 recent row ↗30 CFR 41.12Changes; notification by operator.1 recent row ↗30 CFR 56.4201Inspection.1 recent row ↗30 CFR 56.18002Examination of working places.1 recent row ↗30 CFR 56.20003Housekeeping.1 recent row ↗30 CFR 47.41Requirement for container labels.3 recent rows ↗30 CFR 56.4104Combustible waste.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
505944456.16003Citation
505944356.20011Citation
505878341.12Citation
505939156.4201(a)(1)Citation
503993156.18002S&S
523022056.20003(a)Citation
523021947.41(a)Citation
523021847.41(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBulldozer Operator
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 · contractors339Feb 14, 2000—Sep 18, 2026mine-keyed
Addresses of Recordidentity · logistics1Feb 2, 2026—Feb 2, 2026mine-keyed
Assessed Violationscompliance · legal1,781Jan 11, 2000—Jun 22, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal225Jul 31, 2001—Nov 15, 2024mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal46Jun 25, 2004—Oct 13, 2021mine-keyed
Contested Violationscompliance · legal230Apr 25, 2007—Oct 17, 2025mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety12,303Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety2,568Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance6Jan 1, 1950—Oct 11, 2013mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance306Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance72Not published—Not publishedmine-keyed
Inspectionssafety · compliance247Jan 4, 2000—Aug 31, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety89May 2, 2018—Jun 11, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety102Oct 31, 2006—Jun 12, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,817Jan 11, 2000—Sep 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.