ACTIVE / OPERATOR PORTFOLIO

W W Clyde & Co

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

MSHA OPERATOR IDL05064

MINE PORTFOLIO

4 of 4 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
24-10354202361 · Active6/8 quarters reportedUtah, UTSurface · MSHA: Construction Sand and Gravel012,219409.5
Airport Pit0201221 · Active6/8 quarters reportedGraham, AZSurface · MSHA: Construction Sand and Gravel024,1676027.8
Crushing Plant0202292 · Active6/8 quarters reportedNavajo, AZSurface · MSHA: Construction Sand and Gravel043,8167224.5
Thunder Material Source0203378 · Active6/8 quarters reportedNavajo, AZSurface · MSHA: Construction Sand and Gravel030,46412029.5

LOCATION

Portfolio map

4 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

29

5 significant & substantial (S&S)

  1. 2025 Q12
  2. 2025 Q211
  3. 2025 Q31
  4. 2025 Q43
  5. 2026 Q17
  6. 2026 Q23
  7. 2026 Q32
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

6,638.00

27 of 29 violations with amounts

  1. 2025 Q1302
  2. 2025 Q23,852
  3. 2025 Q3151
  4. 2025 Q4453
  5. 2026 Q11,427
  6. 2026 Q2453
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

91.25

15 inspections · 15 with hours

  1. 2025 Q14.75
  2. 2025 Q217.50
  3. 2025 Q314.00
  4. 2025 Q45.25
  5. 2026 Q137.25
  6. 2026 Q210.50
  7. 2026 Q32.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q120302.000014.8
2025-Q21133,852.0000217.5
2025-Q310151.0010414.0
2025-Q430453.001015.3
2026-Q1721,427.0000437.3
2026-Q230453.0000210.5
2026-Q320—0012.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5059251
    Crushing Plant · 0202292

    56.14107(a) · $151.00 proposed

  2. inspectionF017EBC
    Airport Pit · 0201221

    Regular Safety and Health Inspection · 3.0 on-site hours

  3. accident220253170249
    Crushing Plant · 0202292

    SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Employee missed a step while climbing off the back of EE's mechanic's truck. EE fell to the ground, hitting EE's elbow. X-rays showed EE fractured EE's elbow.

  4. inspectionF01025A
    Thunder Material Source · 0203378

    Compliance Follow-up Inspection · 2.5 on-site hours

  5. inspectionF0047E9
    Thunder Material Source · 0203378

    Compliance Follow-up Inspection · 1.5 on-site hours

  6. violation5052086
    Thunder Material Source · 0203378

    56.18002(a) · S&S · $959.00 proposed

  7. violation5052085
    Thunder Material Source · 0203378

    56.15006 · $151.00 proposed

  8. violation5052084
    Thunder Material Source · 0203378

    56.11008 · $151.00 proposed

  9. violation5052083
    Thunder Material Source · 0203378

    56.11002 · $151.00 proposed

  10. violation5052082
    Thunder Material Source · 0203378

    56.12030 · $151.00 proposed

  11. violation5052081
    Thunder Material Source · 0203378

    56.20003(a) · S&S · $642.00 proposed

  12. violation5052080
    Thunder Material Source · 0203378

    56.14107(a) · $193.00 proposed

  13. violation5052079
    Thunder Material Source · 0203378

    56.4100(b) · $151.00 proposed

  14. violation5052078
    Thunder Material Source · 0203378

    56.11002 · $193.00 proposed

  15. violation5052077
    Thunder Material Source · 0203378

    56.12004 · S&S · $959.00 proposed

  16. inspectionF00FAB5
    Thunder Material Source · 0203378

    Regular Safety and Health Inspection · 12.3 on-site hours

  17. inspectionF01055D
    Thunder Material Source · 0203378

    Verbal Hazard Complaint Inspections · 5.3 on-site hours

  18. violation9828796
    Thunder Material Source · 0203378

    56.14100(c) · $151.00 proposed

  19. inspectionF00BD5C
    Airport Pit · 0201221

    Regular Safety and Health Inspection · 4.8 on-site hours

  20. violation9909272
    Airport Pit · 0201221

    56.12018 · $151.00 proposed

  21. violation9909271
    Airport Pit · 0201221

    56.14112(b) · $151.00 proposed

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.