Mining Incidents

DMC Mine Metal/Non-Metal

Missoula, Missoula County, MT  ·  Active
MSHA Mine ID: 2402211

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Fatalities
0
Total incidents
5
Years on record
2003–2021
Latest incident
Sep 2021
Compliance record
MSHA citations since 2004
19
citations
1
significant & substantial
$1,983
proposed penalties
$1,983
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 670 0 0 0.0
2025 Q3 1,930 0 0 0.0
2025 Q2 1,677 1 0 596.3
2025 Q1 2,199 0 0 0.0
2024 Q4 3,062 0 0 0.0
2024 Q3 1,890 0 0 0.0
2024 Q2 1,357 0 0 0.0
2024 Q1 2,066 1 0 484.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

5 on file

2021 · 1 incident

September 14, 2021 MT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Diversified Materials & Construction LLC · Struck against stationary object

Changing clip on top feed conveyor belt on Screen Plant. Was using pliers trying to break bolt off with pliers. Pliers slipped and hand hit bolt and cut middle knuckle on right hand.

2017 · 1 incident

October 17, 2017 MT · Metal/Non-Metal outside foreman, leadman POWERED HAULAGE
Diversified Materials & Construction LLC · Struck by falling object

Employee was on the ground operating the controls to dump the grizzly on the Road Runner Screen Plant. An 8" or less round rock came off of the overhead deep trough conveyor and struck employee's left lower arm and left hand area.

2006 · 1 incident

2004 · 1 incident

September 7, 2004 MT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Diversified Materials & Construction LLC · Caught in, under or between a moving and a stationary object

Sorting rocks and while passing rock between two employees, rock slipped and smashed employees thumb between sorting table and rock. Thumb nail was crushed and thumb lacerated.

2003 · 1 incident