Mammoth Coal safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
ROAD FORK #52 MINE · 4609522614.0 on-site hours reported
Spot Inspections
ROAD FORK #52 MINE · 4609522103(i) · 4.0 on-site hours reported
Installation of water sprinkler systems; requirements.
ROAD FORK #52 MINE · 460952230 CFR 75.1101-7(a) · $398.00 proposed penalty
Protection from falls of roof, face and ribs.
ROAD FORK #52 MINE · 460952230 CFR 75.202(a) · $1,126.00 proposed penalty
Rock dusting.
ROAD FORK #52 MINE · 460952230 CFR 75.402 · $642.00 proposed penalty
Clamping of trailing cables to equipment.
ROAD FORK #52 MINE · 460952230 CFR 75.605 · $177.00 proposed penalty
Automatic fire warning devices; actions and response.
ROAD FORK #52 MINE · 460952230 CFR 75.1103-5(d) · $177.00 proposed penalty
Spot Inspections
ROAD FORK #52 MINE · 4609522103(i) · 4.5 on-site hours reported
Mine ventilation plan; submission and approval.
ROAD FORK #52 MINE · 460952230 CFR 75.370(a)(1) · $465.00 proposed penalty
Electrical Technical Investigation
ROAD FORK #52 MINE · 46095227.0 on-site hours reported
Spot Inspections
ROAD FORK #52 MINE · 4609522103(i) · 5.5 on-site hours reported
Roof control plan.
ROAD FORK #52 MINE · 460952230 CFR 75.220(a)(1) · $883.00 proposed penalty
Non-Injury Accident Investigation
ROAD FORK #52 MINE · 460952215.3 on-site hours reported
Shaft, Slope or Major Construction Spot Inspection
ROAD FORK #52 MINE · 46095225.0 on-site hours reported
Violation — cited standard not reported
ROAD FORK #52 MINE · 4609522Impoundment Spot Inspection
Mammoth Coal Processing Pl & Riv Tipple · 46033172.8 on-site hours reported
Spot Inspection
Mammoth Coal Processing Pl & Riv Tipple · 46033176.8 on-site hours reported
Spot Inspections
ROAD FORK #52 MINE · 4609522103(i) · 7.8 on-site hours reported
Drill dust control at underground areas of underground mines.
ROAD FORK #52 MINE · 460952230 CFR 72.630(b) · $432.00 proposed penalty
Tests of fire hydrants and fire hose; record of tests.
ROAD FORK #52 MINE · 460952230 CFR 75.1103-11 · $151.00 proposed penalty
Permanent splicing of trailing cables.
ROAD FORK #52 MINE · 460952230 CFR 75.604(b) · $883.00 proposed penalty
Breaking trailing cable and power cable connections.
ROAD FORK #52 MINE · 460952230 CFR 75.607 · $592.00 proposed penalty
Storage of liquefied and nonliquefied compressed gas cylinders; requirements.
ROAD FORK #52 MINE · 460952230 CFR 75.1106-3(a)(2) · $398.00 proposed penalty
Spot Inspections
ROAD FORK #52 MINE · 4609522103(i) · 6.0 on-site hours reported
Immediate notification.
ROAD FORK #52 MINE · 460952230 CFR 50.10(b) · $7,555.00 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.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
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.