Coal production
0reported short tons
ALL STATUSES / CONTROLLER PORTFOLIO
Taiheiyo Cement Corp
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM07897
MINE PORTFOLIO
49 of 49 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 |
|---|---|---|---|---|---|---|
| AGUA FRIA PIT0202181 · Active6/8 quarters reported | Santa Cruz, AZSurface · MSHA: Construction Sand and Gravel | 0 | 18,712 | 2 | 0 | 10.3 |
| Baxter Mine0403569 · Intermittent6/8 quarters reported | San Bernardino, CASurface · MSHA: Iron Ore | 0 | 15,505 | 0 | 0 | 5.8 |
| Bluelake DBA CalPortland3503537 · Active6/8 quarters reported | Multnomah, ORSurface · MSHA: Crushed, Broken Stone NEC | 0 | 8,608 | 1 | 0 | 19.0 |
| Canby Sand & Gravel DBA CalPortland3500497 · Active6/8 quarters reported | Clackamas, ORSurface · MSHA: Crushed, Broken Stone NEC | 0 | 37,040 | 7 | 1 | 45.3 |
| Diablo Plant # 1360203350 · Active6/8 quarters reported | Pinal, AZSurface · MSHA: Construction Sand and Gravel | 0 | 35,663 | 9 | 0 | 38.0 |
| Dupont Pit4503334 · Active6/8 quarters reported | Pierce, WASurface · MSHA: Construction Sand and Gravel | 0 | 156,392 | 18 | 2 | 96.3 |
| GAREY ROCK PLANT0403031 · Active6/8 quarters reported | Santa Barbara, CASurface · MSHA: Construction Sand and Gravel | 0 | 69,616 | 5 | 2 | 47.0 |
| Gem Hill Mine Site0405976 · Intermittent5/8 quarters reported | Kern, CASurface · MSHA: Cement | 0 | 3,287 | 0 | 0 | 9.0 |
| Grimes Rock a CalPortland Company0405432 · Active6/8 quarters reported | Ventura, CASurface · MSHA: Construction Sand and Gravel | 0 | 103,305 | 18 | 3 | 45.5 |
| Jackrabbit Aggregates0203407 · Active6/8 quarters reported | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | 0 | 50,640 | 4 | 1 | 22.8 |
| Lake View Quarry2602386 · Active6/8 quarters reported | Clark, NVSurface · MSHA: Gypsum | 0 | 33,441 | 3 | 0 | 19.0 |
| Mojave Plant & Quarry0400036 · Active6/8 quarters reported | Kern, CAFacility · MSHA: Cement | 0 | 511,407 | 89 | 6 | 391.8 |
| New River Plant0203367 · Active6/8 quarters reported | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | 0 | 45,249 | 7 | 0 | 20.0 |
| ORANGE GROVE0201203 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Construction Sand and Gravel | 0 | 46,880 | 0 | 0 | 27.0 |
| ORO GRANDE QUARRY0400011 · Active6/8 quarters reported | San Bernardino, CAFacility · MSHA: Cement | 0 | 485,226 | 71 | 8 | 340.5 |
| Paso Robles Plant0405492 · Intermittent6/8 quarters reported | San Luis Obispo, CASurface · MSHA: Construction Sand and Gravel | 0 | 888 | 0 | 0 | 10.3 |
| Redding Plant0400034 · Active6/8 quarters reported | Shasta, CASurface · MSHA: Cement | 0 | 304,690 | 49 | 5 | 139.0 |
| RILLITO PLANT0201138 · Active6/8 quarters reported | Pima, AZFacility · MSHA: Cement | 0 | 402,626 | 47 | 9 | 148.0 |
| RILLITO QUARRY0200006 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Crushed, Broken Stone NEC | 0 | 56,706 | 0 | 0 | 13.8 |
| Rocky Canyon Plant0404634 · Active6/8 quarters reported | San Luis Obispo, CASurface · MSHA: Crushed, Broken Granite | 0 | 36,028 | 2 | 3 | 33.0 |
| Sanderling Dredge4503687 · Active6/8 quarters reported | Columbia, ORSurface · MSHA: Sand, Industrial NEC | 0 | 17,235 | 1 | 1 | 22.0 |
| Santosh DBA CalPortland3500525 · Active6/8 quarters reported | Columbia, ORSurface · MSHA: Construction Sand and Gravel | 0 | 190,594 | 9 | 5 | 77.5 |
| Scheerer Quarry0405907 · Active6/8 quarters reported | San Bernardino, CASurface · MSHA: Sand, Common | 0 | 72,741 | 3 | 0 | 32.0 |
| Smokey Point Pit4500574 · Active6/8 quarters reported | Snohomish, WASurface · MSHA: Construction Sand and Gravel | 0 | 19,761 | 7 | 1 | 21.8 |
| Snoqualmie S&G dba CalPortland Company4503136 · Active6/8 quarters reported | King, WASurface · MSHA: Construction Sand and Gravel | 0 | 60,334 | 54 | 2 | 105.0 |
| Twin Peaks Aggregate0202283 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Construction Sand and Gravel | 0 | 25,588 | 1 | 0 | 14.5 |
| VASHON SAND AND GRAVEL dba CalPortland4501707 · Active6/8 quarters reported | King, WASurface · MSHA: Construction Sand and Gravel | 0 | 11,012 | 7 | 1 | 19.8 |
| White River Quarry4503374 · Active6/8 quarters reported | King, WASurface · MSHA: Crushed, Broken Stone NEC | 0 | 19,198 | 7 | 0 | 42.5 |
| Anamax0201811 · Abandoned | Pima, AZSurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Bradley Plant0405572 · Abandoned | Monterey, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Bullard0203082 · Abandoned | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Colton Aggregates0405677 · Abandoned | San Bernardino, CASurface · MSHA: Sand, Industrial NEC | — | — | 0 | 0 | — |
| Colton Plant & Quarry0400037 · Abandoned | San Bernardino, CASurface · MSHA: Cement | — | — | 0 | 0 | — |
| Construx Aggregates2602322 · Abandoned | Clark, NVSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Coolidge Plant 40203081 · Abandoned | Pinal, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Downtown Plant3500708 · Abandoned | Multnomah, ORSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Empire Mountain Quarry0203447 · Temporarily Idled | Pima, AZSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| LAKELAND HILLS PIT4503318 · Abandoned | King, WASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Linnton DBA CalPortland3503475 · Abandoned | Multnomah, ORSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Liston0400557 · Abandoned | Riverside, CASurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Mats Mats Quarry4500020 · Abandoned | Jefferson, WASurface · MSHA: Crushed, Broken Traprock | — | — | 0 | 0 | — |
| Maury Island Sand & Grav dba CalPortland4502526 · Abandoned | King, WASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Oro Grande Aggregates0405906 · Abandoned | San Bernardino, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| PANTANO0201608 · Abandoned | Pima, AZSurface · MSHA: Crushed, Broken Stone NEC | — | — | 0 | 0 | — |
| PORTABLE CRUSHER 050202612 · Abandoned | Pima, AZFacility · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Port of Vancouver DBA CalPortland4503285 · Abandoned | Clark, WASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Steilacoom Pit4500675 · Abandoned | Pierce, WASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Superior0403570 · Abandoned | San Bernardino, CASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| VALENCIA0200989 · Abandoned | Pima, AZSurface · 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
Portfolio map
44 of 49 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- AGUA FRIA PIT31.47306, -111.01361Open map ↗
- Baxter Mine35.05500, -116.30278Open map ↗
- Bluelake DBA CalPortland45.55944, -122.44861Open map ↗
- Canby Sand & Gravel DBA CalPortland45.25361, -122.71389Open map ↗
- Diablo Plant # 13633.02222, -111.54278Open map ↗
- Dupont Pit47.12278, -122.64056Open map ↗
- GAREY ROCK PLANT34.89361, -120.29944Open map ↗
- Gem Hill Mine Site34.91889, -118.21639Open map ↗
- Grimes Rock a CalPortland Company34.33472, -118.90944Open map ↗
- Jackrabbit Aggregates33.37278, -112.47861Open map ↗
- Lake View Quarry36.25444, -115.17694Open map ↗
- Mojave Plant & Quarry35.03833, -118.29472Open map ↗
- New River Plant33.84111, -112.21472Open map ↗
- ORANGE GROVE32.32444, -111.17556Open map ↗
- ORO GRANDE QUARRY34.60639, -117.33583Open map ↗
- Paso Robles Plant35.58194, -120.69306Open map ↗
- Redding Plant40.73750, -122.31806Open map ↗
- RILLITO PLANT32.41139, -111.14944Open map ↗
- RILLITO QUARRY32.36111, -111.18722Open map ↗
- Rocky Canyon Plant35.47417, -120.61167Open map ↗
- Sanderling Dredge45.79250, -122.84389Open map ↗
- Santosh DBA CalPortland45.78722, -122.85139Open map ↗
- Scheerer Quarry34.57278, -117.26222Open map ↗
- Smokey Point Pit48.20861, -122.14472Open map ↗
- Snoqualmie S&G dba CalPortland Company47.55139, -121.81250Open map ↗
- Twin Peaks Aggregate32.35333, -111.18306Open map ↗
- VASHON SAND AND GRAVEL dba CalPortland47.38083, -122.41861Open map ↗
- White River Quarry47.18222, -121.92361Open map ↗
- Bradley Plant35.86306, -120.78056Open map ↗
- Bullard33.37833, -112.36583Open map ↗
- Colton Aggregates34.05778, -117.33444Open map ↗
- Colton Plant & Quarry34.05778, -117.33444Open map ↗
- Construx Aggregates35.96861, -114.90778Open map ↗
- Coolidge Plant 432.97778, -111.51750Open map ↗
- Empire Mountain Quarry32.01222, -110.71194Open map ↗
- Linnton DBA CalPortland45.59750, -122.78250Open map ↗
- Mats Mats Quarry47.95458, -122.68432Open map ↗
- Maury Island Sand & Grav dba CalPortland47.37078, -122.46386Open map ↗
- Oro Grande Aggregates34.60667, -117.33611Open map ↗
- PANTANO32.41985, -111.17759Open map ↗
- Port of Vancouver DBA CalPortland45.64500, -122.72306Open map ↗
- Steilacoom Pit47.20009, -122.56889Open map ↗
- Superior34.48834, -117.37394Open map ↗
- VALENCIA32.21631, -110.77164Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 49 mines listed under this controller were checked; 28 have reports in the available quarters. Totals use current ownership.
Hours worked
2,838,372reported 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 | 525,227 | 0.00 | 862 | 28/28 mines reporting |
| 2025 Q2 | 0 | 470,502 | 0.00 | 914 | 28/28 mines reporting |
| 2025 Q3 | 0 | 474,694 | 0.00 | 898 | 28/28 mines reporting |
| 2025 Q4 | 0 | 463,372 | 0.00 | 891 | 28/28 mines reporting |
| 2026 Q1 | 0 | 464,462 | 0.00 | 897 | 27/28 mines reporting |
| 2026 Q2 | 0 | 440,115 | 0.00 | 859 | 28/28 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
42179 significant & substantial (S&S)
Accident records
500 records classified as fatality
Proposed penalties · USD
267,310.00418 of 421 violations with amounts
On-site inspection hours
1,816.00132 inspections · 132 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 | 90 | 18 | 30,259.00 | 8 | 0 | 22 | 338.3 |
| 2025-Q2 | 62 | 15 | 48,442.00 | 7 | 0 | 20 | 268.8 |
| 2025-Q3 | 30 | 4 | 5,988.00 | 5 | 0 | 15 | 204.0 |
| 2025-Q4 | 80 | 22 | 111,096.00 | 3 | 0 | 18 | 332.5 |
| 2026-Q1 | 52 | 3 | 14,920.00 | 7 | 0 | 21 | 195.8 |
| 2026-Q2 | 66 | 14 | 29,781.00 | 9 | 0 | 13 | 287.8 |
| 2026-Q3 | 41 | 3 | 26,824.00 | 11 | 0 | 23 | 189.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- RILLITO PLANT · 0201138
56.20003(a) · $697.00 proposed
- RILLITO PLANT · 0201138
56.12028 · $336.00 proposed
- RILLITO PLANT · 0201138
56.12028 · $336.00 proposed
- RILLITO PLANT · 0201138
56.12028 · $336.00 proposed
- RILLITO PLANT · 0201138
56.14207 · $336.00 proposed
- RILLITO PLANT · 0201138
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Injury, fractured right fibular. Employee slipped on loose clinker material resulting in fracture
- Lake View Quarry · 2602386
Regular Safety and Health Inspection · 3.3 on-site hours
- Lake View Quarry · 2602386
50.30(a) · $151.00 proposed
- GAREY ROCK PLANT · 0403031
56.16001 · $151.00 proposed
- GAREY ROCK PLANT · 0403031
Regular Safety and Health Inspection · 7.5 on-site hours
- AGUA FRIA PIT · 0202181
Regular Safety and Health Inspection · 2.5 on-site hours
- AGUA FRIA PIT · 0202181
56.11008 · $151.00 proposed
- Jackrabbit Aggregates · 0203407
56.16003 · $151.00 proposed
- New River Plant · 0203367
Regular Safety and Health Inspection · 8.0 on-site hours
- Jackrabbit Aggregates · 0203407
Regular Safety and Health Inspection · 10.0 on-site hours
- New River Plant · 0203367
56.14206(b) · $151.00 proposed
- New River Plant · 0203367
56.14107(a) · $151.00 proposed
- RILLITO PLANT · 0201138
STRIKING OR BUMPING · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was walking through the plant to get to the parking lot at the end of EE's shift. EE walked past a flatbed truck with a large piece of expanded metal laying on it and scraped EE's arm along it, resulting in a three-inch laceration, requiring three stitches. No lost time.
- Dupont Pit · 4503334
56.16001 · $151.00 proposed
- Santosh DBA CalPortland · 3500525
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
Installing a hydraulic Pump on a boat, pump slipped on rigging and fell on thumb.
- Redding Plant · 0400034
Compliance Follow-up Inspection · 0.5 on-site hours
- Dupont Pit · 4503334
Regular Safety and Health Inspection · 11.5 on-site hours
- ORO GRANDE QUARRY · 0400011
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
The employee was called to Stage 1 West and started air lancing to clear any material in the way. After the employee finished air lancing, EE noticed that EE's right was hurting and swollen.
- Santosh DBA CalPortland · 3500525
STRIKING OR BUMPING · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
The employee was transitioning/moving from the tugboat back onto the dredge after an impeller had been staged on the tugboat to be taken away. While walking past the impeller, the employee's right index finger grazed against a sharp edge on the impeller, resulting in a laceration. The employee went to have it examined and received stitches to the wound.
- RILLITO PLANT · 0201138
POWERED HAULAGE · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Holding on to upper rail of boomlift basket when coming down the basket made contact with the silo pinching their finger causing a fracture.
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
5 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.