MINE DETAILS
Pumpkin Hollow East Underground
MSHA MINE ID2602711
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Pumpkin Hollow East Underground38.93556, -119.06528Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ 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 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
192 significant & substantial (S&S)
Accident records
160 records classified as fatality
Proposed penalties · USD
10,819.0019 of 19 violations with amounts
On-site inspection hours
256.2515 inspections · 15 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 | — | 1 | 0 | 1 | 8.0 |
| 2025-Q2 | 0 | 0 | — | 2 | 0 | 2 | 46.0 |
| 2025-Q3 | 4 | 0 | 8,008.00 | 2 | 0 | 3 | 24.3 |
| 2025-Q4 | 2 | 0 | 302.00 | 3 | 0 | 1 | 34.5 |
| 2026-Q1 | 10 | 1 | 2,056.00 | 1 | 0 | 3 | 74.0 |
| 2026-Q2 | 2 | 0 | 302.00 | 2 | 0 | 4 | 32.0 |
| 2026-Q3 | 1 | 1 | 151.00 | 5 | 0 | 1 | 37.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
HOISTING · ACCIDENT ONLY
Accident narrative
Breakers for the Hoist House tripped due to electrical storm activity. Main line power to the hoisting conveyance was disrupted until the breakers could be reset. The breakers were reset and power was restored to the hoisting conveyance.
57.14100(c) · S&S · $151.00 proposed
HOISTING · ACCIDENT ONLY
Accident narrative
While performing pre shift hoisting conveyance checks, the lower limit switch showed a fault causing the checks to fail that part of the testing. The lower limit switch was stuck due to small buildup of concrete on it. The limit switch was cleaned allowing the checks to pass.
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
During innertube retrieval, side loading occurred while the helper attempted to free the stuffing box by pushing/pulling on it. When released, the stuffing box deflected slightly outside the perceived red zone and the 90� pump-down hose contacted the helper's right ankle, causing a fall and ankle sprain.
Regular Safety and Health Inspection · 37.5 on-site hours
HOISTING · ACCIDENT ONLY
Accident narrative
Auxiliary Cage in the main shaft conveyance taken out of automated use for unscheduled improvement/upgrades to provide corrective actions for a HP Near Miss incident. No injuries, damage to equipment, or entrapment were encountered. The work will focus on upgrades to the automation programming and interlocks.
HOISTING · ACCIDENT ONLY
Accident narrative
Damage received to aluminum rail of the service cage as the cage was shipped underground to transport materials. Downtime occurred due to repairs needed on the aluminum rail.
Verbal Hazard Complaint Inspections · 3.0 on-site hours
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
After pulling the inner tube with the latch head, the helper walked to the tube rack. While placing the tube, weight shifted toward the latch head, causing EE to lose balance slightly. EE's right hand lowered, and EE's ring finger was caught under the latch head as it contacted the rack. EE was wearing impact gloves.
Verbal Hazard Complaint Inspections · 9.0 on-site hours
HOISTING · ACCIDENT ONLY
Accident narrative
Service Cage Damage. Upper brattice door was damaged while transporting materials down the shaft causing the brattice doors to interfere with the use of the cage. The brattice doors were repaired and the cage was put back into operation later that day.
57.20011 · $151.00 proposed
57.12004 · $151.00 proposed
Verbal Hazard Complaint Inspections · 8.0 on-site hours
Regular Safety and Health Inspection · 12.0 on-site hours
Verbal Hazard Complaint Inspections · 17.5 on-site hours
Compliance Follow-up Inspection · 3.5 on-site hours
49.6(a)(5) · $151.00 proposed
57.4460(a)(1) · $151.00 proposed
57.12030 · $151.00 proposed
47.41(a) · $151.00 proposed
57.12032 · $151.00 proposed
57.14107(a) · $151.00 proposed
57.3360 · $151.00 proposed
57.11036 · S&S · $697.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
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.
—
Kinterra Capitol CorporationcontrolsSouthwest Critical Materials LLCoperatesPumpkin Hollow East Underground
msha-controller-operator-history · controller/operator co-tenure derived on mine 2602711—
Nevada Copper CorporationcontrolsNevada Copper Inc.operatesPumpkin Hollow East Underground
msha-controller-operator-history · controller/operator co-tenure derived on mine 2602711Other 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
94 historical accident/injury rows; 0 coded fatalities and 642 lost days across the published record.
ACCIDENT + INJURY RECORD58 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
448 violation rows across the full record; 57 carry an S&S flag and $238,735 appears in current assessed amounts.
ENFORCEMENT ACTIVITY204 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHcontext
Occupational health samples
50 personal; 2 area. 0 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 EXPOSURE52 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
The source remains registered, but no mine-keyed quarterly production row was published.
NO CURRENT QUARTERNo published quarter
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
36 contested-violation rows, 36 civil-penalty docket/decision rows, and 54 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE126 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 CONTEXT27 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
153 inspection events and 5K published inspection hours across the historical record.
OVERSIGHT COVERAGE75 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 0 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 |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
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 57.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 57.20011Barricades and warning signs.1 recent row ↗30 CFR 57.12004Electrical conductors.1 recent row ↗30 CFR 49.6Equipment and maintenance requirements.1 recent row ↗30 CFR 57.4460Storage of flammable liquids underground.1 recent row ↗30 CFR 57.12030Correction of dangerous conditions.1 recent row ↗30 CFR 47.41Requirement for container labels.1 recent row ↗30 CFR 57.12032Inspection and cover plates.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
968097957.14100(c)S&S
934919257.20011Citation
934919157.12004Citation
934916949.6(a)(5)Citation
968096057.4460(a)(1)Citation
510237157.12030Citation
510237047.41(a)Citation
510236957.12032Citation
Coal dust, noise and other contaminants. Silica records above ↑
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzWarehouse Man
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.04 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.01 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.02 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Fibers, >5umCutting Mach Operator
C/E: 00.00Concentration: 0000.01 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors94May 31, 2012—Aug 23, 2026mine-keyed
Addresses of Recordidentity · logistics1Jul 18, 2022—Jul 18, 2022mine-keyed
Assessed Violationscompliance · legal437Jun 26, 2012—Aug 20, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal36Jun 1, 2016—Nov 17, 2023mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal54Aug 22, 2012—Apr 30, 2026mine-keyed
Contested Violationscompliance · legal36Jun 23, 2015—May 9, 2023mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety4,633Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety1,058Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Mar 15, 2012—Oct 9, 2024mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance—No published rowsabsent / not applicable
Mine Employment and Production — Yearlyproduction · safety · compliance52Not published—Not publishedmine-keyed
Inspectionssafety · compliance153Jun 26, 2012—Aug 5, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety2Apr 2, 2026—Aug 19, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety50Jan 15, 2013—Aug 12, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal448Jun 26, 2012—Aug 20, 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.