Lone Tree Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Machinery
No dys awy frm wrk,no rstr act
Accident narrative
Employee was in the process of changing a band saw blade with the assistance of a helper. During the task, the battery was not removed from the tool. While the blade change was underway, another employee inadvertently activated the trigger resulting in laceration to finger
Regular Safety and Health Inspection
8.5 on-site hours reported
Spillage and leakage.
30 CFR 56.4102 · $151.00 proposed penalty
Safety defects; examination, correction and records.
30 CFR 56.14100(a) · $151.00 proposed penalty
Life jackets and belts.
30 CFR 56.15020 · $151.00 proposed penalty
Identification of power switches.
30 CFR 56.12018 · $151.00 proposed penalty
Identification of power switches.
30 CFR 56.12018 · $151.00 proposed penalty
Spot Inspection
9.5 on-site hours reported
Regular Safety and Health Inspection
4.5 on-site hours reported
Regular Safety and Health Inspection
8.5 on-site hours reported
Spillage and leakage.
30 CFR 56.4102 · $151.00 proposed penalty
Handling of materials
No dys awy frm wrk,no rstr act
Accident narrative
While closing the spring-loaded lid on the pulverizer, an employee's hand slipped, causing the handle to pop up and make contact with their lip, resulting in 3 stitches
Regular Safety and Health Inspection
7.3 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.