Patterson Mine and Mill safety activity
MSHA violations, accident reports and inspections.
Safety activity
Regular Safety and Health Inspection
3.5 on-site hours reported
Housekeeping.
30 CFR 56.20003(a) · Significant and substantial (S&S) · $245.00 proposed penalty
Testing grounding systems.
30 CFR 56.12028 · $151.00 proposed penalty
Inspection and cover plates.
30 CFR 56.12032 · $151.00 proposed penalty
Testing grounding systems.
30 CFR 56.12028 · $151.00 proposed penalty
Regular Safety and Health Inspection
17.3 on-site hours reported
Powered haulage
Days away from work only
Accident narrative
A compressed system was installed. While energizing with compressed air, an air leak occurred in the piping. The failure caused the piping and the receiver tank to collapse. While escaping the area, an employee was struck in the back by a manlift, causing them to fall. During the fall, they struck their head and sustained a head laceration that required stitches.
Exploding vessels under pressure
Days away from work only
Accident narrative
Incident occurred while installing a new pressurized air system.
Non-Fatal Accident Investigation
9.8 on-site hours reported
Violation — cited standard not reported
Special Emphasis Programs
0.5 on-site hours reported
Regular Safety and Health Inspection
1.0 on-site hours reported
Changes; notification by operator.
30 CFR 41.12 · $151.00 proposed penalty
Regular Safety and Health Inspection
7.5 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.