← Gerken Materials Inc.

Gerken Materials Inc. safety activity

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

2025-01-01 – 2026-10-28Database snapshot · 2026-10-28

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F0146B0
    Gerken Materials- Hillsdale Plant · 2002344

    9.5 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F011639
    Gerken Materials Inc · 3300033

    7.3 on-site hours reported

  3. Identification of power switches.

    violationRecord 6553494
    Gerken Materials- Hillsdale Plant · 2002344

    30 CFR 56.12018 · $151.00 proposed penalty

  4. Horns and backup alarms.

    violationRecord 6553493
    Round Lake Sand and Gravel West Plt · 2003447

    30 CFR 56.14132(a) · $151.00 proposed penalty

  5. Regular Safety and Health Inspection

    inspectionRecord F0146AF
    Round Lake Sand and Gravel West Plt · 2003447

    10.8 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F0146AE
    Tecumseh Plant · 2003312

    8.0 on-site hours reported

  7. Regular Safety and Health Inspection

    inspectionRecord F01162F
    Clinton Plant · 2002886

    5.5 on-site hours reported

  8. Regular Safety and Health Inspection

    inspectionRecord F0146A5
    Gerken Materials Inc · 3300033

    8.8 on-site hours reported

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.