Brent Gerken; Michael J Gerken safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Handling of materials
Custar Stone Company · 3300143Days away from work only
Accident narrative
Employee was filling water tanks on back of truck. Water pressure was too high and employee lost control of hose causing them to lose balance and fell off the side of the truck. When employee fell they struck their head on the concrete knocking them unconscious.
Regular Safety and Health Inspection
Custar Stone Company · 330014316.5 on-site hours reported
Violation — cited standard not reported
Custar Stone Company · 3300143Regular Safety and Health Inspection
Gerken Materials- Hillsdale Plant · 20023449.5 on-site hours reported
Regular Safety and Health Inspection
Gerken Materials Inc · 33000337.3 on-site hours reported
Identification of power switches.
Gerken Materials- Hillsdale Plant · 200234430 CFR 56.12018 · $151.00 proposed penalty
Horns and backup alarms.
Round Lake Sand and Gravel West Plt · 200344730 CFR 56.14132(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Round Lake Sand and Gravel West Plt · 200344710.8 on-site hours reported
Regular Safety and Health Inspection
Tecumseh Plant · 20033128.0 on-site hours reported
Machinery
Custar Stone Company · 3300143No dys awy frm wrk,no rstr act
Accident narrative
Employee was rigging a lifting chain to a section of conveyor that was connected to the mini excavator and the operator moved the excavator stick and pinched employee lower arm between conveyor section and excavator stick and bruised lower arm.
Regular Safety and Health Inspection
Clinton Plant · 20028865.5 on-site hours reported
Regular Safety and Health Inspection
Gerken Materials Inc · 33000338.8 on-site hours reported
Stationary grinding machines.
Custar Stone Company · 330014330 CFR 56.14115(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Custar Stone Company · 33001439.0 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.