Mining Incidents

Lone Mountain Processing LLCOperator

Controlled by Arch Resources Inc
MSHA Operator ID: P21594
Fatalities
7
Total incidents
590
Mines on record
6
Years on record
2000–2017

Safety benchmark

Recorded fatalities relative to other operators with a fatal MSHA history. Percentile is computed across the 739 operators with at least one recorded fatality.

Fatality-count percentile
98th

More recorded fatalities than 98% of operators on file.

Rank
#13of 739

Position when operators are sorted by recorded fatalities.

Vs industry mean
4.3×

Industry mean: 1.6 fatalities per fatal-history operator.

This operator
7
Industry mean
1.6
Industry median
1
Peers at similar incident volume

Methodology: percentile and rank computed across MSHA operators with at least one recorded fatality. Industry mean is the average across that same population. Peers are sampled by closest total-incident count, regardless of fatality outcome.

For counsel + compliance teams

Get an email the moment a new MSHA-reportable accident lands at any mine on file under Lone Mountain Processing LLC. Useful for 105(c) defense intake, FMSHRC docket prep, and active client monitoring.

Top causes

  • FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL3 fatalities · 25 non-fatal
  • POWERED HAULAGE2 fatalities · 39 non-fatal
  • MACHINERY1 fatality · 62 non-fatal
  • ELECTRICAL1 fatality · 3 non-fatal
  • FALL OF ROOF OR BACK246 non-fatal
  • HANDLING OF MATERIALS93 non-fatal

Incident timeline

2017
19
2016
19 (1f)
2015
16
2014
14
2013
9 (1f)
2012
15
2011
30
2010
22 (1f)
2009
31
2008
30
2007
33
2006
48 (1f)
2005
42
2004
44
2003
45
2002
61 (3f)
2001
47
2000
65

Mines on record

Fatalities under this operator

7 recorded
Struck by rolling or sliding object

While workers were cleaning up material that was removed from a new coal transfer borehole using a continuous miner, a section of rib/brow fell from the inby portion of the entry and continued outby pulling rib bolts. The material rolled down the rib and struck the miner operator causing fatal crushing injuries to chest and abdomen.

Struck by flying object

While conducting retreat mining on 6-Left Panel off B-4 Mains, a coal/rock outburst occurred inby break #35. The outburst involved the continuous miner operator who suffered fatal blunt force injuries to his head, chest, and legs.

Struck by... (Not Elsewhere Classified)

While directing activities to re-support ribs in an intersection, a rib roll struck a standing roof support which in turn struck the foreman in the head causing fatal injuries.

Caught in, under or between a moving and a stationary object

Employee was found pinned between the #4 mobile bridge unit and the section lo-lo conveyor belt structure. He was apparently troubleshooting a report of weak tramming on the left side of the mobile unit. There were no witnesses to the accident.

Caught in, under or between (Not Elsewhere Classified)

THE VICTIM WAS HAULING REFUSE FINES -100 MESH TO THE IMPOUNDMENT. HE WAS BACKING THE TRUCK TO THE DUMPING POINT WHEN FOR SOME REASON. HE TURNED THE TRUCK THROUGH THE BERM. THE TRUCK TURNED TO THE LEFT SIDE AND SLID DOWN THE EMBANKMENT AND CAME TO REST ON IT'S LEFT SIDE, SUBMERGING THE CAB INTO THE IMPOUNDMENT MATERIALS.

Contact with electrical current

EMPLOYEE WAS WORKING ON A POWER DISTRIBUTION BOXTO DETERMINE WHY A CIRCUIT BREAKER WOULD NOT OPERATE. HE APPARENTLY CAME IN CONTACT WITH AN ENERGIZED CIRCUIT DURING THE TROUBLE SHOOTING PROCES S.

Caught in, under or between a moving and a stationary object

EMPLOYEE WAS FOUND LAYING ON THE MINE FLOOR, APPROXIMATELY 25'INBY SPAD #15181 IN THE #4 ENTRY ON THE 3 RIGHT PANEL, 001 RETREAT MINING SECTION. HE HAD APPARENTLY BEEN RAN OVER BY A BATTERY POWERED COAL HAULER.