ACTIVE / OPERATOR PORTFOLIO

Knife River

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

MSHA OPERATOR ID0152673

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Grantsville Pit4202675 · Active6/8 quarters reportedTooele, UTSurface · MSHA: Construction Sand and Gravel045,3488233.3

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

8

1 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q31
  4. 2025 Q42
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q34
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

8,612.00

8 of 8 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2151
  3. 2025 Q3151
  4. 2025 Q4302
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q38,008
  8. 2026 Q4 *—

On-site inspection hours

33.25

8 inspections · 8 with hours

  1. 2025 Q19.00
  2. 2025 Q25.00
  3. 2025 Q33.25
  4. 2025 Q46.50
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q39.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0019.0
2025-Q210151.000015.0
2025-Q311151.001023.3
2025-Q420302.000016.5
2026-Q100—000—
2026-Q200—000—
2026-Q3408,008.001039.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation9826396
    Grantsville Pit · 4202675

    50.30(a) · $151.00 proposed

  2. inspectionF00B1E1
    Grantsville Pit · 4202675

    Verbal Hazard Complaint Inspections · 0.0 on-site hours

  3. inspectionF00B1E0
    Grantsville Pit · 4202675

    103 (g) Written Notification Hazard Complaint Inspectio · 2.0 on-site hours

  4. violation9826395
    Grantsville Pit · 4202675

    50.10(b) · $7,555.00 proposed

  5. accident220262370023
    Grantsville Pit · 4202675

    MACHINERY · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was welding in a screen chute. It was a hot sunny day. while welding they accidentally touched their bald sweaty head against chute resulting in a shock from the welder. After the shock employee was breathing heavy and seemed confused, so I took them to the E.R. where they were released with zero restrictions.

  6. inspectionF036D4D
    Grantsville Pit · 4202675

    Regular Safety and Health Inspection · 7.5 on-site hours

  7. violation9906835
    Grantsville Pit · 4202675

    56.14112(b) · $151.00 proposed

  8. violation9906834
    Grantsville Pit · 4202675

    56.14112(a)(1) · $151.00 proposed

  9. inspectionF0146FE
    Grantsville Pit · 4202675

    Regular Safety and Health Inspection · 6.5 on-site hours

  10. violation5053021
    Grantsville Pit · 4202675

    56.11001 · $151.00 proposed

  11. violation5053020
    Grantsville Pit · 4202675

    56.14107(a) · $151.00 proposed

  12. inspectionF036D26
    Grantsville Pit · 4202675

    103 (g) Written Notification Hazard Complaint Inspectio · 1.0 on-site hours

  13. inspectionF036D25
    Grantsville Pit · 4202675

    103 (g) Written Notification Hazard Complaint Inspectio · 2.3 on-site hours

  14. violation5055540
    Grantsville Pit · 4202675

    56.14100(b) · S&S · $151.00 proposed

  15. accident220262430007
    Grantsville Pit · 4202675

    DISORDERS (PHYSICAL AGENTS) · OCCUPATNAL ILLNESS NOT DEG 1-6

    Accident narrative

    Employee complained that EE was unstable, overheated, and was really red faced. We called 911 and the employee was taken to Mountain west medical center emergency department. EE was released that day.

  16. inspectionF016BD7
    Grantsville Pit · 4202675

    Regular Safety and Health Inspection · 5.0 on-site hours

  17. violation5051058
    Grantsville Pit · 4202675

    56.12004 · $151.00 proposed

  18. inspection6949559
    Grantsville Pit · 4202675

    Regular Safety and Health Inspection · 9.0 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

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.