Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Granite Construction Company
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL00039
MINE PORTFOLIO
16 of 16 mines and facilities
2025-01-01 – 2026-10-18. Active 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 |
|---|---|---|---|---|---|---|
| Bee Rock Quarry0404704 · Active6/8 quarters reported | Santa Barbara, CASurface · MSHA: Crushed, Broken Limestone NEC | 0 | 23,611 | 10 | 0 | 42.0 |
| Big Rock Creek Quarry0405946 · Active6/8 quarters reported | Los Angeles, CASurface · MSHA: Sand, Industrial NEC | 0 | 54,034 | 2 | 0 | 31.0 |
| Bradshaw0403107 · Active6/8 quarters reported | Sacramento, CASurface · MSHA: Construction Sand and Gravel | 0 | 75,967 | 7 | 0 | 80.5 |
| Capay Plant Facility0405338 · Active6/8 quarters reported | Yolo, CASurface · MSHA: Construction Sand and Gravel | 0 | 56,435 | 7 | 0 | 61.0 |
| Coalinga Pit0401879 · Active6/8 quarters reported | Fresno, CASurface · MSHA: Construction Sand and Gravel | 0 | 79,921 | 15 | 0 | 50.5 |
| Coyote Aggregate4202485 · Active6/8 quarters reported | Tooele, UTSurface · MSHA: Construction Sand and Gravel | 0 | 78,611 | 11 | 0 | 30.3 |
| Felton Quarry0400107 · Active6/8 quarters reported | Santa Cruz, CASurface · MSHA: Crushed, Broken Granite | 0 | 20,577 | 2 | 0 | 47.0 |
| Handley Ranch Quarry0405629 · Active6/8 quarters reported | Monterey, CASurface · MSHA: Crushed, Broken Stone NEC | 0 | 27,399 | 0 | 0 | 29.0 |
| Highway 175 Quarry0405336 · Active6/8 quarters reported | Lake, CASurface · MSHA: Construction Sand and Gravel | 0 | 40,229 | 4 | 0 | 59.5 |
| Lockwood Quarry2602204 · Active6/8 quarters reported | Washoe, NVSurface · MSHA: Construction Sand and Gravel | 0 | 70,085 | 2 | 0 | 39.3 |
| Orosi Quarry0405727 · Active6/8 quarters reported | Tulare, CASurface · MSHA: Construction Sand and Gravel | 0 | 24,659 | 5 | 0 | 17.8 |
| Solari Sand and Gravel0405947 · Active6/8 quarters reported | Kern, CASurface · MSHA: Construction Sand and Gravel | 0 | 41,142 | 1 | 0 | 22.5 |
| SWAN PIT0202647 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Construction Sand and Gravel | 0 | 61,911 | 5 | 0 | 22.5 |
| Tangerine Road Pit0200649 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Construction Sand and Gravel | 0 | 25,044 | 0 | 0 | 27.3 |
| Vernalis Plant0405783 · Active6/8 quarters reported | San Joaquin, CASurface · MSHA: Sand, Industrial NEC | 0 | 79,243 | 10 | 0 | 67.3 |
| Wells Pit4202250 · Active6/8 quarters reported | Box Elder, UTSurface · MSHA: Construction Sand and Gravel | 0 | 61,906 | 4 | 0 | 51.8 |
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
Portfolio map
16 of 16 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Bee Rock Quarry34.55417, -119.97667Open map ↗
- Big Rock Creek Quarry34.51389, -117.85556Open map ↗
- Bradshaw38.54889, -121.33444Open map ↗
- Capay Plant Facility38.71444, -122.01944Open map ↗
- Coalinga Pit36.16583, -120.35806Open map ↗
- Coyote Aggregate40.65083, -112.28528Open map ↗
- Felton Quarry37.03472, -122.09806Open map ↗
- Handley Ranch Quarry36.56500, -121.42722Open map ↗
- Highway 175 Quarry38.99444, -122.93556Open map ↗
- Lockwood Quarry39.51111, -119.65972Open map ↗
- Orosi Quarry36.55361, -119.24667Open map ↗
- Solari Sand and Gravel35.03056, -118.80361Open map ↗
- SWAN PIT32.08250, -110.88861Open map ↗
- Tangerine Road Pit32.42389, -111.17889Open map ↗
- Vernalis Plant37.60278, -121.34639Open map ↗
- Wells Pit41.40917, -112.03611Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 16 mines listed under this operator were checked; 16 have reports in the available quarters. Totals use current ownership.
Hours worked
820,774reported 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 | 115,893 | 0.00 | 239 | 16/16 mines reporting |
| 2025 Q2 | 0 | 146,914 | 0.00 | 251 | 16/16 mines reporting |
| 2025 Q3 | 0 | 144,610 | 0.00 | 251 | 16/16 mines reporting |
| 2025 Q4 | 0 | 131,758 | 0.00 | 248 | 16/16 mines reporting |
| 2026 Q1 | 0 | 132,484 | 0.00 | 264 | 16/16 mines reporting |
| 2026 Q2 | 0 | 149,115 | 0.00 | 275 | 16/16 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
8515 significant & substantial (S&S)
Accident records
00 records classified as fatality
Proposed penalties · USD
19,096.0080 of 85 violations with amounts
On-site inspection hours
679.0090 inspections · 90 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 | 18 | 3 | 5,603.00 | 0 | 0 | 14 | 107.3 |
| 2025-Q2 | 14 | 2 | 2,920.00 | 0 | 0 | 13 | 117.5 |
| 2025-Q3 | 6 | 3 | 1,848.00 | 0 | 0 | 15 | 86.5 |
| 2025-Q4 | 16 | 0 | 2,444.00 | 0 | 0 | 13 | 93.3 |
| 2026-Q1 | 1 | 0 | — | 0 | 0 | 11 | 93.0 |
| 2026-Q2 | 17 | 4 | 4,373.00 | 0 | 0 | 12 | 108.0 |
| 2026-Q3 | 11 | 3 | 1,908.00 | 0 | 0 | 9 | 47.5 |
| 2026-Q4 * | 2 | 0 | — | 0 | 0 | 3 | 26.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Highway 175 Quarry · 0405336
56.11001 · S&S · $714.00 proposed
- Highway 175 Quarry · 0405336
Description not reported
- Bradshaw · 0403107
Impoundment Spot Inspection · 2.5 on-site hours
- Coyote Aggregate · 4202485
56.9300(a) · $151.00 proposed
- Coyote Aggregate · 4202485
56.14207 · $151.00 proposed
- Coyote Aggregate · 4202485
56.12032 · $151.00 proposed
- Coyote Aggregate · 4202485
56.14207 · $151.00 proposed
- Coyote Aggregate · 4202485
Regular Safety and Health Inspection · 10.0 on-site hours
- Felton Quarry · 0400107
56.14101(a)(3) · $151.00 proposed
- Felton Quarry · 0400107
47.41(a)(1) · $151.00 proposed
- Felton Quarry · 0400107
Regular Safety and Health Inspection · 8.8 on-site hours
- Coalinga Pit · 0401879
56.12032 · $151.00 proposed
- Coalinga Pit · 0401879
Regular Safety and Health Inspection · 10.0 on-site hours
- Coalinga Pit · 0401879
56.14107(a) · $151.00 proposed
- Wells Pit · 4202250
Regular Safety and Health Inspection · 12.5 on-site hours
- Lockwood Quarry · 2602204
Regular Safety and Health Inspection · 7.0 on-site hours
- Capay Plant Facility · 0405338
47.41(a) · $151.00 proposed
- Capay Plant Facility · 0405338
Regular Safety and Health Inspection · 11.5 on-site hours
- Vernalis Plant · 0405783
Regular Safety and Health Inspection · 5.5 on-site hours
- Capay Plant Facility · 0405338
56.20003(a) · $151.00 proposed
- Vernalis Plant · 0405783
56.11001 · $151.00 proposed
- Vernalis Plant · 0405783
47.41(a)(1) · $151.00 proposed
- Bradshaw · 0403107
Regular Safety and Health Inspection · 4.0 on-site hours
- SWAN PIT · 0202647
Regular Safety and Health Inspection · 7.0 on-site hours
- Solari Sand and Gravel · 0405947
Regular Safety and Health Inspection · 5.0 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.