CHERRY TREE MINE safety activity
MSHA violations, accident reports and inspections.
Safety activity
Health Technical Investigation
25.3 on-site hours reported
Ventilation controls.
30 CFR 75.333(h)
Spot Inspection
16.5 on-site hours reported
Violation — cited standard not reported
Identification check system.
30 CFR 75.1715
Spot Inspections
103(i) · 6.0 on-site hours reported
Identification check system.
30 CFR 75.1715
Water sprinkler systems; arrangement of sprinklers.
30 CFR 75.1101-8(d)
Health Technical Investigation
10.0 on-site hours reported
Spot Inspections
103(i) · 5.0 on-site hours reported
Health Technical Investigation
16.0 on-site hours reported
Stationary grinding machines; protective devices.
30 CFR 77.401(a)(2) · Significant and substantial (S&S) · $755.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Condition and examination of firefighting equipment.
30 CFR 75.1100-3 · $151.00 proposed penalty
Spot Inspections
103(i) · 7.0 on-site hours reported
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $151.00 proposed penalty
Sampling; general and technical requirements.
30 CFR 70.201(c) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Quarterly sampling; designated areas.
30 CFR 70.209(a) · $151.00 proposed penalty
Mechanical equipment guards.
30 CFR 75.1722(a) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Fire-resistant hydraulic fluids and fire suppression devices on underground equipment.
30 CFR 75.1107-1(a)(3)(ii) · $151.00 proposed penalty
Temporary notations, revisions, and supplements.
30 CFR 75.1202-1(b)(3) · $151.00 proposed penalty
Preshift examination at fixed intervals.
30 CFR 75.360(g) · $151.00 proposed penalty
Ventilation Technical Investigation
10.0 on-site hours reported
Spot Inspections
103(i) · 5.5 on-site hours reported
Nonpermissible diesel-powered equipment; design and performance requirements.
30 CFR 75.1909(c)(5) · $151.00 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.