Amrize Joliet S & G Underground Mine # 1 safety activity
MSHA violations, accident reports and inspections.
Safety activity
Electrical conductors.
30 CFR 57.12004 · $151.00 proposed penalty
Electrical conductors.
30 CFR 57.12004 · $267.00 proposed penalty
Housekeeping.
30 CFR 57.20003(a) · Significant and substantial (S&S) · $177.00 proposed penalty
Regular Safety and Health Inspection
41.3 on-site hours reported
Correction of hazardous conditions.
30 CFR 57.3200 · Significant and substantial (S&S) · $1,320.00 proposed penalty
Compliance Follow-up Inspection
0.0 on-site hours reported
Vehicles.
30 CFR 57.6202(a)(5) · $336.00 proposed penalty
Moving machine parts.
30 CFR 57.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
28.5 on-site hours reported
Safety defects; examination, correction and records.
30 CFR 57.14100(b) · $151.00 proposed penalty
Horns and backup alarms for surface equipment.
30 CFR 57.14132(a) · $151.00 proposed penalty
Vehicles.
30 CFR 57.6202(a)(5) · $336.00 proposed penalty
Electrical conductors.
30 CFR 57.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
32.0 on-site hours reported
Slip or fall of person
Days restricted activity only
Accident narrative
Employee was climbing down two steps off the ANFO rig, placed EE's left ankle on the ground (approximately 12 inches from bottom step) and it rolled when EE released the handrails on the step. Immediately reported to management and eventually found to be non-displaced fracture of the lateral Malleolus of the left fibula.
Fall of roof or back
Accident only
Accident narrative
Sections of the back between 01SB-02SB and 10EB-11EB fell past the anchorage zone at some point in time and was discovered on 12/3/25. The entire area has been bermed off since 2020 so the area is considered inactive. All entrances to the entire bench cell have been barricaded against entry at this time.
Examination of ground conditions.
30 CFR 57.3401 · Significant and substantial (S&S) · $1,679.00 proposed penalty
Correction of hazardous conditions.
30 CFR 57.3200 · Significant and substantial (S&S) · $1,679.00 proposed penalty
Regular Safety and Health Inspection
34.5 on-site hours reported
Ground support use.
30 CFR 57.3360 · Significant and substantial (S&S) · $1,679.00 proposed penalty
Violation — cited standard not reported
Fall of roof or back
Accident only
Accident narrative
The back in 4SB and 27WB fell above the anchorage and was discovered at approximately 9:30am on 11/3/25. Workplace exams from the intersection showed no hazards at approximately 4pm on 11/1/25, so the accident occurred sometime between then. The area was immediately barricaded off and it did not block travel routes or impeded escape. No miners or equipment were hurt/damaged.
Identification of power switches.
30 CFR 57.12018 · $336.00 proposed penalty
Regular Safety and Health Inspection
45.5 on-site hours reported
Shunting.
30 CFR 57.6401(c) · $336.00 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.
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.