ACTIVE / OPERATOR PORTFOLIO

CalPortland Company

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL11900

MINE PORTFOLIO

24 of 24 mines and facilities

2025-01-01 – 2026-10-17. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
AGUA FRIA PIT0202181 · ActiveSanta Cruz, AZSurface · MSHA: Construction Sand and Gravel——2010.3
Bluelake DBA CalPortland3503537 · ActiveMultnomah, ORSurface · MSHA: Crushed, Broken Stone NEC——1019.0
Canby Sand & Gravel DBA CalPortland3500497 · ActiveClackamas, ORSurface · MSHA: Crushed, Broken Stone NEC——7145.3
Diablo Plant # 1360203350 · ActivePinal, AZSurface · MSHA: Construction Sand and Gravel——9038.0
Dupont Pit4503334 · ActivePierce, WASurface · MSHA: Construction Sand and Gravel——18296.3
GAREY ROCK PLANT0403031 · ActiveSanta Barbara, CASurface · MSHA: Construction Sand and Gravel——5247.0
Grimes Rock a CalPortland Company0405432 · ActiveVentura, CASurface · MSHA: Construction Sand and Gravel——18345.5
Jackrabbit Aggregates0203407 · ActiveMaricopa, AZSurface · MSHA: Construction Sand and Gravel——4122.8
Lake View Quarry2602386 · ActiveClark, NVSurface · MSHA: Gypsum——3019.0
Mojave Plant & Quarry0400036 · ActiveKern, CAFacility · MSHA: Cement——896391.8
New River Plant0203367 · ActiveMaricopa, AZSurface · MSHA: Construction Sand and Gravel——7020.0
ORANGE GROVE0201203 · ActivePima, AZSurface · MSHA: Construction Sand and Gravel——0027.0
ORO GRANDE QUARRY0400011 · ActiveSan Bernardino, CAFacility · MSHA: Cement——718340.5
Redding Plant0400034 · ActiveShasta, CASurface · MSHA: Cement——495139.0
RILLITO PLANT0201138 · ActivePima, AZFacility · MSHA: Cement——479148.0
RILLITO QUARRY0200006 · ActivePima, AZSurface · MSHA: Crushed, Broken Stone NEC——0013.8
Rocky Canyon Plant0404634 · ActiveSan Luis Obispo, CASurface · MSHA: Crushed, Broken Granite——2333.0
Sanderling Dredge4503687 · ActiveColumbia, ORSurface · MSHA: Sand, Industrial NEC——1122.0
Santosh DBA CalPortland3500525 · ActiveColumbia, ORSurface · MSHA: Construction Sand and Gravel——9577.5
Scheerer Quarry0405907 · ActiveSan Bernardino, CASurface · MSHA: Sand, Common——3032.0
Snoqualmie S&G dba CalPortland Company4503136 · ActiveKing, WASurface · MSHA: Construction Sand and Gravel——542105.0
Twin Peaks Aggregate0202283 · ActivePima, AZSurface · MSHA: Construction Sand and Gravel——1014.5
VASHON SAND AND GRAVEL dba CalPortland4501707 · ActiveKing, WASurface · MSHA: Construction Sand and Gravel——7119.8
White River Quarry4503374 · ActiveKing, WASurface · MSHA: Crushed, Broken Stone NEC——7042.5

LOCATION

Portfolio map

24 of 24 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

414

79 significant & substantial (S&S)

  1. 2025 Q190
  2. 2025 Q261
  3. 2025 Q330
  4. 2025 Q480
  5. 2026 Q150
  6. 2026 Q262
  7. 2026 Q341
  8. 2026 Q4 *0

Accident records

49

0 records classified as fatality

  1. 2025 Q18
  2. 2025 Q27
  3. 2025 Q35
  4. 2025 Q43
  5. 2026 Q17
  6. 2026 Q28
  7. 2026 Q311
  8. 2026 Q4 *0

Proposed penalties · USD

266,253.00

411 of 414 violations with amounts

  1. 2025 Q130,259
  2. 2025 Q248,291
  3. 2025 Q35,988
  4. 2025 Q4111,096
  5. 2026 Q114,618
  6. 2026 Q229,177
  7. 2026 Q326,824
  8. 2026 Q4 *—

On-site inspection hours

1,769.25

123 inspections · 123 with hours

  1. 2025 Q1331.25
  2. 2025 Q2258.25
  3. 2025 Q3195.25
  4. 2025 Q4329.75
  5. 2026 Q1189.50
  6. 2026 Q2276.25
  7. 2026 Q3189.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1901830,259.008021331.3
2025-Q2611548,291.007018258.3
2025-Q33045,988.005014195.3
2025-Q48022111,096.003017329.8
2026-Q150314,618.007020189.5
2026-Q2621429,177.008010276.3
2026-Q341326,824.0011023189.0
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. accident220262740037
    Redding Plant · 0400034

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Clearing a chunk of cement through a port and cement flushed out of the port and got into the left eye of the employee.

  2. inspectionF0388C0
    Lake View Quarry · 2602386

    Spot Inspection · 7.0 on-site hours

  3. accident220262730008
    Snoqualmie S&G dba CalPortland Company · 4503136

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee stepped out of EE's dump truck while at the Snoqualmie Agg site. As EE turned to walk away from the cab, EE felt a pop in EE's left knee. EE did not think it was serious and continued to work. The symptoms worsened over the weekend and then reported the injury Monday morning on 9/28/2026. At this moment, EE has been prescribed Lost Time from 9/28 - 10/6.

  4. accident220262710023
    Redding Plant · 0400034

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE was removing and replacing light ballasts in various locations throughout the facility and on 9/21 reported their left arm was injured due to the repetitive task they were performing. EE was diagnosed with tennis elbow.

  5. inspectionF046E3F
    RILLITO PLANT · 0201138

    Compliance Follow-up Inspection · 1.8 on-site hours

  6. inspectionF030F88
    White River Quarry · 4503374

    Special Emphasis Programs · 3.8 on-site hours

  7. accident220262580010
    RILLITO PLANT · 0201138

    OTHER · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Supervisor was removing an employee from site for cause when an altercation occurred.

  8. inspectionF03A41F
    Dupont Pit · 4503334

    Spot Inspection · 0.0 on-site hours

  9. violation5107685
    Dupont Pit · 4503334

    50.20-1 · $151.00 proposed

  10. inspectionF047362
    ORANGE GROVE · 0201203

    Spot Inspection · 0.5 on-site hours

  11. inspectionF047360
    Twin Peaks Aggregate · 0202283

    Spot Inspection · 0.5 on-site hours

  12. violation5160027
    Diablo Plant # 136 · 0203350

    50.30(a)

  13. violation5166322
    Scheerer Quarry · 0405907

    56.14112(b) · $151.00 proposed

  14. inspectionF0408E8
    Diablo Plant # 136 · 0203350

    Regular Safety and Health Inspection · 10.8 on-site hours

  15. inspectionF04A75D
    Scheerer Quarry · 0405907

    Regular Safety and Health Inspection · 7.0 on-site hours

  16. inspectionF014D74
    ORANGE GROVE · 0201203

    Regular Safety and Health Inspection · 5.5 on-site hours

  17. inspectionF035D53
    Twin Peaks Aggregate · 0202283

    Regular Safety and Health Inspection · 3.5 on-site hours

  18. inspectionF046E36
    RILLITO QUARRY · 0200006

    Regular Safety and Health Inspection · 4.5 on-site hours

  19. violation5151841
    RILLITO PLANT · 0201138

    56.12004 · $151.00 proposed

  20. violation5151840
    RILLITO PLANT · 0201138

    56.12028 · $267.00 proposed

  21. violation5151839
    RILLITO PLANT · 0201138

    56.14132(a) · $151.00 proposed

  22. violation5046910
    RILLITO PLANT · 0201138

    56.11002 · $267.00 proposed

  23. inspectionF014D71
    RILLITO PLANT · 0201138

    Regular Safety and Health Inspection · 34.5 on-site hours

  24. violation5221256
    RILLITO PLANT · 0201138

    56.20003(a) · S&S · $7,676.00 proposed

  25. violation5221255
    RILLITO PLANT · 0201138

    56.12006 · $336.00 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.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.