← Brent Gerken; Michael J Gerken

Brent Gerken; Michael J Gerken safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. Unguarded conveyors with adjacent travelways.

    violationRecord 5110188
    Round Lake Sand and Gravel West Plt · 2003447

    30 CFR 56.14109(b)(1) · $151.00 proposed penalty

  2. Machinery, equipment, and tools.

    violationRecord 5110187
    Round Lake Sand and Gravel West Plt · 2003447

    30 CFR 56.14205 · Significant and substantial (S&S) · $226.00 proposed penalty

  3. Slip or fall of person

    accidentRecord 220260680022
    Gerken Materials- Hillsdale Plant · 2002344

    No dys awy frm wrk,no rstr act

    Accident narrative

    Employee was exiting the scale house office and slipped on ice and fell on steps and fractured four ribs in their back.

  4. Regular Safety and Health Inspection

    inspectionRecord F01C998
    Gerken Materials- Hillsdale Plant · 2002344

    5.0 on-site hours reported

  5. Regular Safety and Health Inspection

    inspectionRecord F032E81
    Custar Stone Company · 3300143

    19.3 on-site hours reported

  6. Eye protection when operating grinding wheels.

    violationRecord 5110318
    Custar Stone Company · 3300143

    30 CFR 56.15014 · Significant and substantial (S&S) · $151.00 proposed penalty

  7. Stationary grinding machines.

    violationRecord 5110317
    Custar Stone Company · 3300143

    30 CFR 56.14115(b) · $151.00 proposed penalty

  8. Handling of materials

    accidentRecord 220260480028
    Clinton Plant · 2002886

    Dys awy frm wrk & restrctd act

    Accident narrative

    Employee was climbing up ladder to a conveyor and felt a shoulder pop. After being checked by medical it was determined that their shoulder dislocated.

  9. Regular Safety and Health Inspection

    inspectionRecord F032E7F
    Gerken Materials Inc · 3300033

    10.0 on-site hours reported

  10. Regular Safety and Health Inspection

    inspectionRecord F02CD4B
    Bluffton Stone Company LLC. · 3300017

    8.5 on-site hours reported

  11. Testing grounding systems.

    violationRecord 5074541
    Bluffton Stone Company LLC. · 3300017

    30 CFR 56.12028 · $151.00 proposed penalty

  12. Regular Safety and Health Inspection

    inspectionRecord F02CF22
    Clinton Plant · 2002886

    14.8 on-site hours reported

  13. Regular Safety and Health Inspection

    inspectionRecord F02CF1E
    Round Lake Sand and Gravel West Plt · 2003447

    6.0 on-site hours reported

  14. Regular Safety and Health Inspection

    inspectionRecord F02CF1B
    Tecumseh Plant · 2003312

    6.0 on-site hours reported

  15. Fuel lines.

    violationRecord 5110446
    Tecumseh Plant · 2003312

    30 CFR 56.4501 · $151.00 proposed penalty

  16. Spot Inspection

    inspectionRecord F01B6BE
    Gerken Materials- Hillsdale Plant · 2002344

    10.8 on-site hours reported

  17. Regular Safety and Health Inspection

    inspectionRecord F017384
    Clinton Plant · 2002886

    10.5 on-site hours reported

  18. Safety defects; examination, correction and records.

    violationRecord 9808328
    Bluffton Stone Company LLC. · 3300017

    30 CFR 56.14100(a) · $151.00 proposed penalty

  19. Brakes.

    violationRecord 9808327
    Bluffton Stone Company LLC. · 3300017

    30 CFR 56.14101(a)(2) · $151.00 proposed penalty

  20. Construction and maintenance of guards.

    violationRecord 9808326
    Bluffton Stone Company LLC. · 3300017

    30 CFR 56.14112(a)(1) · $151.00 proposed penalty

  21. Inspection and cover plates.

    violationRecord 9808325
    Bluffton Stone Company LLC. · 3300017

    30 CFR 56.12032 · $151.00 proposed penalty

  22. Regular Safety and Health Inspection

    inspectionRecord F016890
    Bluffton Stone Company LLC. · 3300017

    20.5 on-site hours reported

  23. Compliance Follow-up Inspection

    inspectionRecord F017B8C
    Custar Stone Company · 3300143

    1.8 on-site hours reported

  24. Safe access.

    violationRecord 6497550
    Custar Stone Company · 3300143

    30 CFR 56.11001 · Significant and substantial (S&S) · $549.00 proposed penalty

  25. Safety defects; examination, correction and records.

    violationRecord 6497549
    Custar Stone Company · 3300143

    30 CFR 56.14100(b) · $151.00 proposed penalty

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.

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.