Mining Incidents

Duffield Aggregate of Missouri Metal/Non-Metal

Controlled by Luke B Duffield
Potosi, Washington County, MO  ·  Active
MSHA Mine ID: 2302077

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Fatalities
1
Total incidents
8
Years on record
2005–2023
Latest incident
May 2023
Compliance record
MSHA citations since 2000
221
citations
55
significant & substantial
$175,536
proposed penalties
$146,389
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 7,629 9 2 1179.7
2025 Q3 1,102 0 0 0.0
2025 Q2 6,262 2 1 319.4
2025 Q1 731 3 0 4104.0
2024 Q4 10,241 0 0 0.0
2024 Q2 1,615 5 0 3096.0
2024 Q1 856 0 0 0.0
2023 Q4 3,232 4 1 1237.6
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded

Reportable incidents

7 on file (excluding fatalities above)

2023 · 1 incident

May 24, 2023 MO · Metal/Non-Metal refuse truck driver, backfill truck driver, stock pile truck driver HANDTOOLS (NONPOWERED)
Duffield Aggregates LLC · Struck by flying object

Was measuring a hole to see if it was ready to be stemmed. The weight on the end of the tape got hung up. Employee pulled on the tape causing it fly out of the hole at a high velocity and strike the employee in the groin area.

2018 · 1 incident

February 21, 2018 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman STEPPING OR KNEELING ON OBJECT
Washington County Aggregates Inc. · Struck against stationary object

EE was trying to get a cable when EE stepped off the concrete onto what EE thought was dirt and mud. EE stepped on a board with a nail in it that was under the dirt. The nail went through EE's boot and into EE's foot.

2017 · 1 incident

July 8, 2017 MO · Metal/Non-Metal backhoe operator, trackhoe operator SLIP OR FALL OF PERSON
Washington County Aggregates Inc. · Fall onto or against objects

Operator noticed a hydraulic leak on track hoe. Got out of equipment to see about leak and clean up the oil when ee slipped on track hoe and fell hitting right side of body on track hoe and landing on pile of rocks.

2016 · 1 incident

August 18, 2016 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Washington County Aggregates Inc. · Struck by... (Not Elsewhere Classified)

Moving screens to ground and the balance of the screen was off and it tilted the wrong way and the corner hit just above thee left ankle, causing bruising and swelling.

2015 · 1 incident

December 15, 2015 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Washington County Aggregates Inc. · Struck by falling object

Miner was working on the wheel inside the track of a track hoe. He was trying to take the metal wheel off, and it fell on his left foot.

2005 · 2 incidents

June 7, 2005 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Washington County Aggregates Inc. · Fall onto or against objects

Employee was installing big electrical boxes in a box when the straps securing the box slipped. He tried to jump from trailer to keep from being pinned by the box. When he jumped he landed on his side across a starter box which was on the ground below box trailer. When he landed he injured his rib cage and was taken to E.R.

April 18, 2005 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Washington County Aggregates Inc. · Fall from ladders

Employee was descending the ladder, got to the third step and missed a step. He then slid down the rest of the ladder and hit the ground and rolled onto his belly, during this time he twisted/strained his back. He remained on his belly until ambulance personnel arrived and placed him on a backboard. He had been up and down the ladder several times that morning.