Twin Underground safety activity
MSHA violations, accident reports and inspections.
Safety activity
Regular Safety and Health Inspection
21.0 on-site hours reported
Handtools (nonpowered)
Days restricted activity only
Accident narrative
EE was loosening bolt on pot head when the wrench slipped and pinched their left index finger between the wrench and the pot head. EE reported incident on DOI. Seen at clinic 8/7, diagnosed with left index finger fracture, referred to orthopedics. Released to restrictions which are being accommodated.
Regular Safety and Health Inspection
10.0 on-site hours reported
Failure to notify.
30 CFR 41.13 · $151.00 proposed penalty
Inspection.
30 CFR 57.4201(a)(5) · $755.00 proposed penalty
Combustible waste.
30 CFR 57.4104(a) · $1,126.00 proposed penalty
Requirement for container labels.
30 CFR 47.41(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
16.0 on-site hours reported
Handling of materials
Days away from work only
Accident narrative
Miners were attempting to remove an old pump discharge pipe. The upstream valve had been isolated. While loosening the 4-inch Victaulic fitting, the pipe separated due to tension within the line, causing one of the pipes to swing toward the employee, striking EE in the right lower chest.
Regular Safety and Health Inspection
10.5 on-site hours reported
Underground alarm systems.
30 CFR 57.4360(b) · $151.00 proposed penalty
Compliance Follow-up Inspection
0.5 on-site hours reported
Construction and maintenance of guards.
30 CFR 57.14112(b) · $151.00 proposed penalty
Ventilation Technical Investigation
8.8 on-site hours reported
Regular Safety and Health Inspection
7.0 on-site hours reported
Inspection and cover plates.
30 CFR 57.12032 · $193.00 proposed penalty
Compliance Follow-up Inspection
0.5 on-site hours reported
Regular Safety and Health Inspection
6.5 on-site hours reported
Audiometric testing.
30 CFR 62.170(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
30 CFR 57.14100(b) · $313.00 proposed penalty
Regular Safety and Health Inspection
3.5 on-site hours reported
Prohibited areas for food and beverages.
30 CFR 57.20014 · $151.00 proposed penalty
Regular Safety and Health Inspection
1.8 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.
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.