ALL STATUSES / OPERATOR PORTFOLIO
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MINE PORTFOLIO
2025-01-01 – 2026-10-17. 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 |
|---|---|---|---|---|---|---|
| Austin Quarry0405954 · Active | Madera, CASurface · MSHA: Crushed, Broken Stone NEC | — | — | 1 | 0 | 35.5 |
| Baca Pit2901667 · Intermittent | Sandoval, NMSurface · MSHA: Construction Sand and Gravel | — | — | 1 | 0 | 5.3 |
| Chula Vista Quarry0404080 · Active | San Diego, CASurface · MSHA: Construction Sand and Gravel | — | — | 6 | 0 | 55.0 |
| Corona Plant0405095 · Active | Riverside, CASurface · MSHA: Construction Sand and Gravel | — | — | 2 | 0 | 57.8 |
| Cupertino Quarry0405987 · Intermittent | Santa Clara, CASurface · MSHA: Construction Sand and Gravel | — | — | 1 | 0 | 21.3 |
| Durbin Plant0401734 · Active | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 1 | 1 | 35.5 |
| Lake Herman Quarry0400726 · Active | Solano, CASurface · MSHA: Crushed, Broken Stone NEC | — | — | 6 | 0 | 37.8 |
| LEXINGTON QUARRY0400946 · Active | Santa Clara, CASurface · MSHA: Crushed, Broken Stone NEC | — | — | 1 | 1 | 36.0 |
| MARANA PLANT0202919 · Active | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 6 | 0 | 19.8 |
| Napa Quarry0400023 · Active | Napa, CASurface · MSHA: Sand, Industrial NEC | — | — | 0 | 3 | 36.3 |
| PALMDALE PLANT0402125 · Active | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 2 | 0 | 39.5 |
| PENA BLANCA2901771 · Active | Sandoval, NMSurface · MSHA: Construction Sand and Gravel | — | — | 3 | 1 | 39.0 |
| PLACITAS2901475 · Active | Sandoval, NMSurface · MSHA: Construction Sand and Gravel | — | — | 1 | 1 | 7.0 |
| Pleasanton Plant0401924 · Active | Alameda, CASurface · MSHA: Construction Sand and Gravel | — | — | 10 | 1 | 102.5 |
| Queen Creek Stone0203342 · Active | Pinal, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | 18.3 |
| RELIANCE PLANT0403200 · Active | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | 32.3 |
| San Bernardino Plant0401984 · Active | San Bernardino, CASurface · MSHA: Construction Sand and Gravel | — | — | 3 | 1 | 51.8 |
| San Emidio Plant0401800 · Active | Kern, CASurface · MSHA: Construction Sand and Gravel | — | — | 11 | 0 | 104.3 |
| Sanger Plant0401937 · Active | Fresno, CASurface · MSHA: Construction Sand and Gravel | — | — | 4 | 1 | 59.5 |
| SUN CITY PLANT0200632 · Active | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 2 | 0 | 37.8 |
| VAL VISTA - CITRUS GROVE 1500202891 · Active | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | 17.3 |
| West Broadway0202261 · Active | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 6 | 0 | 56.8 |
| West Plant0202166 · Active | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 3 | 0 | 24.5 |
| AVONDALE PLANT0202933 · Temporarily Idled | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | 9.5 |
| Big Rock Creek0405778 · Abandoned | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| BLACK ANGUS PLANT0202814 · Abandoned | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Blue Ridge Quarry0405355 · Abandoned | Mendocino, CASurface · MSHA: Crushed, Broken Stone NEC | — | — | 0 | 0 | — |
| Carroll Canyon Plant0401932 · Abandoned | San Diego, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Cross Hill0203429 · Abandoned | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Fort Cady Quarry0405626 · Abandoned | San Bernardino, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| FRIANT PLANT0401999 · Abandoned | Fresno, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Gila 2400203415 · Temporarily Idled | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | 2.3 |
| Green Valley0202643 · Abandoned | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Highway 850203534 · New Mine | Maricopa, AZSurface · Not reported | — | — | 0 | 0 | — |
| Ina Pit0201483 · Abandoned | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| LITCHFIELD PLANT0201317 · Abandoned | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| MESA0203095 · Abandoned | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Mission Valley Plant0401933 · Abandoned | San Diego, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| ORO GRANDE ROCK PLANT0404162 · Abandoned | San Bernardino, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Pala Plant0401934 · Abandoned | San Diego, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| PEORIA PLANT0202912 · Abandoned | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| PILARCITOS QUARRY0402261 · Abandoned | San Mateo, CASurface · MSHA: Crushed, Broken Stone NEC | — | — | 0 | 0 | — |
| River Rock Plant0401711 · Abandoned | Fresno, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Santa Ana2901634 · Abandoned | Sandoval, NMSurface · MSHA: Cement | — | — | 0 | 0 | — |
| SANTA FE PIT2901961 · Abandoned | Santa Fe, NMSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| SANTO DOMINGO PUEBLO MINE2902243 · Abandoned | Sandoval, NMSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| SATICOY PLANT0401740 · Abandoned | Ventura, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Shakespeare Pit2900418 · Abandoned | Bernalillo, NMSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Sloan Canyon Plant0403027 · Abandoned | San Diego, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Sun Valley Plant0401736 · Abandoned | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Torrance Quarry2902269 · Abandoned | Torrance, NMSurface · MSHA: Crushed, Broken Stone NEC | — | — | 1 | 0 | 7.0 |
| TRP-Irvine Lake Plant0405277 · Abandoned | Orange, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| UNIVERSITY PLANT0200631 · Abandoned | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| VALLEY ROCK0405042 · Abandoned | San Joaquin, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Western EnvironmentalContracting0405485 · Abandoned | Los Angeles, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Wheeler Ridge Plant0401829 · Abandoned | Kern, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
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
47 of 56 mines with usable MSHA coordinates. Select a marker to open a mine.
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. All 56 mines listed under this operator were checked; 0 have reports in the available quarters. Totals use current ownership.
reported short tons
reported employee hours
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.
| 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 |
2025-01-01 – 2026-10-17
8 significant & substantial (S&S)
0 records classified as fatality
69 of 71 violations with amounts
122 inspections · 122 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.
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 9 | 0 | 3,711.00 | 1 | 0 | 13 | 112.8 |
| 2025-Q2 | 16 | 2 | 2,906.00 | 2 | 0 | 21 | 172.8 |
| 2025-Q3 | 13 | 3 | 4,128.00 | 1 | 0 | 18 | 141.3 |
| 2025-Q4 | 4 | 0 | 604.00 | 1 | 0 | 12 | 94.0 |
| 2026-Q1 | 9 | 0 | 1,373.00 | 0 | 0 | 17 | 138.0 |
| 2026-Q2 | 9 | 1 | 1,636.00 | 3 | 0 | 14 | 116.5 |
| 2026-Q3 | 11 | 2 | 1,789.00 | 2 | 0 | 23 | 160.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 4 | 13.0 |
All violations issued in the selected period. Counts combine subsections.
Regular Safety and Health Inspection · 3.8 on-site hours
Impoundment Spot Inspection · 0.0 on-site hours
Impoundment Spot Inspection · 0.0 on-site hours
Regular Safety and Health Inspection · 9.3 on-site hours
Regular Safety and Health Inspection · 12.3 on-site hours
56.12008
Spot Inspection · 1.3 on-site hours
Regular Safety and Health Inspection · 5.3 on-site hours
Regular Safety and Health Inspection · 25.0 on-site hours
Regular Safety and Health Inspection · 7.8 on-site hours
Regular Safety and Health Inspection · 11.0 on-site hours
Spot Inspection · 0.5 on-site hours
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
While performing a preventative maintenance inspection on a dozer, employee scraped EE's right shin against the equipment while descending resulting in a laceration to EE's right shin that required medical treatment, including eight stitches.
Regular Safety and Health Inspection · 10.3 on-site hours
Regular Safety and Health Inspection · 5.5 on-site hours
56.11008 · S&S · $336.00 proposed
56.14132(a) · $151.00 proposed
56.14100(b) · $151.00 proposed
56.4200(b)(2) · $151.00 proposed
Mine Idle Activity · 1.0 on-site hours
Regular Safety and Health Inspection · 15.5 on-site hours
Impoundment Spot Inspection · 2.0 on-site hours
103 (g) Written Notification Hazard Complaint Inspectio · 1.5 on-site hours
Regular Safety and Health Inspection · 10.0 on-site hours
56.20002(a) · S&S · $245.00 proposed
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.
SELECTED PORTFOLIO
Relationships reflect the selected mine status and current MSHA controller/operator fields.