Coal production
0reported short tons
ALL STATUSES / OPERATOR PORTFOLIO
Southwest Critical Materials LLC
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0198994
MINE PORTFOLIO
1 of 1 mines and facilities
2025-01-01 – 2026-10-18. All statuses records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Pumpkin Hollow East Underground2602711 · NonProducing6/8 quarters reported | Lyon, NVUnderground · MSHA: Copper Ore NEC | 0 | 344,994 | 19 | 16 | 256.3 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
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 · 2026-10-18. All 1 mines listed under this operator were checked; 1 have reports in the available quarters. Totals use current ownership.
Hours worked
344,994reported 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 | 31,009 | 0.00 | 134 | 1/1 mines reporting |
| 2025 Q2 | 0 | 32,493 | 0.00 | 115 | 1/1 mines reporting |
| 2025 Q3 | 0 | 35,700 | 0.00 | 154 | 1/1 mines reporting |
| 2025 Q4 | 0 | 49,408 | 0.00 | 290 | 1/1 mines reporting |
| 2026 Q1 | 0 | 94,168 | 0.00 | 388 | 1/1 mines reporting |
| 2026 Q2 | 0 | 102,216 | 0.00 | 463 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
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
- Pumpkin Hollow East Underground · 2602711
57.11027 · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
57.20003(a) · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
Regular Safety and Health Inspection · 53.0 on-site hours
- Pumpkin Hollow East Underground · 2602711
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Drill helper removed stuffing box, tube lowered to safety block, pulled overshot off tube, stepped back. The driller ran rods up to release tube from rods. Once the driller ran the rod string up, a piece of slipped core (or core stuck in bit/shoe) fell out of the rod string as rods moved forward, striking the helper in the shin.
- Pumpkin Hollow East Underground · 2602711
HOISTING · ACCIDENT ONLY
Accident narrative
At approximately 3:00pm the service cage was downed due to the brakes being applied and not releasing during a pm of the conveyance hoist. A relief valve was not releasing pressure to release the brakes.
- Pumpkin Hollow East Underground · 2602711
57.3360 · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
Regular Safety and Health Inspection · 34.5 on-site hours
- Pumpkin Hollow East Underground · 2602711
56.14100(a) · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
FALL OF ROOF OR BACK · ACCIDENT ONLY
Accident narrative
At approximately 8:25am, the supervisor was notified that an a ground fall had occurred in an inactive drift near the face. The wire was hanging down and SX ground support bolts were attached to the wire.
- Pumpkin Hollow East Underground · 2602711
HOISTING · ACCIDENT ONLY
Accident narrative
Auxiliary Cage (MaryAnn Cage) was shut down at approximately 6:00 pm on October 30, 2025 due to accumulator leak of the hydraulic power unit. Accumulator was slowly leaking off nitrogen charge.
- Pumpkin Hollow East Underground · 2602711
SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
EE was walking in GEHO Sump area #1 when left foot slipped on a small rock causing EE to lose their balance and putting full weight on the left foot on the ground surface. This cause a left Achilles tendon rupture.
- Pumpkin Hollow East Underground · 2602711
Compliance Follow-up Inspection · 1.8 on-site hours
- Pumpkin Hollow East Underground · 2602711
Spot Inspection · 0.0 on-site hours
- Pumpkin Hollow East Underground · 2602711
50.10(c) · $7,555.00 proposed
- Pumpkin Hollow East Underground · 2602711
HOISTING · ACCIDENT ONLY
Accident narrative
At 5:02 p.m., the hoistman was raising the Service Hoist to the surface with one miner on the cage. The Shaft Crew had just finished installing a new remix on the bottom of the slickline, approximately 650 feet from the surface. The hoist tripped out due to the electrical drive overheating.
- Pumpkin Hollow East Underground · 2602711
Regular Safety and Health Inspection · 22.5 on-site hours
- Pumpkin Hollow East Underground · 2602711
57.3360 · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
57.14100(b) · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
57.3200 · $151.00 proposed
- Pumpkin Hollow East Underground · 2602711
HOISTING · ACCIDENT ONLY
Accident narrative
Around 9:30 am an Employee was loading a UTV on the service cage at the surface collar and the overhead door came down catching the buggy bending the door pulling it out of the track. The cage is used for either personnel or equipment and at no point were persons endangered. Operator is filing this report under duress.
- Pumpkin Hollow East Underground · 2602711
Ventilation Technical Investigation · 11.0 on-site hours
- Pumpkin Hollow East Underground · 2602711
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was drilling vertical holes above head with a Hilti gun using a 1 �" bit to install anchor bolts to secure a 10' pipe. Employee was taking a break and wiped their face off with a rag, and got a piece foreign object in their right eye. EE then attempted to flush it out. Foreign object was later removed by optometrists.
- Pumpkin Hollow East Underground · 2602711
Regular Safety and Health Inspection · 35.0 on-site hours
- Pumpkin Hollow East Underground · 2602711
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was at the 3090-refuge chamber pulling the 3/C #10 AWG cable around to the back of the refuge chamber to land the cable into the junction box. Employee threw the cable towards the back of the refuge chamber and stepped down from the first rung of the ladder. Employee slipped as employee stepped down and felt a sharp pain in right ankle and fell to the ground.
- Pumpkin Hollow East Underground · 2602711
Regular Safety and Health Inspection · 8.0 on-site hours
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.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.