Washington County Aggregates Inc. · Caught in, under or between running or meshing objects
Miner removed an area guard and got entangled in a tail pulley.
Duffield Aggregate of Missouri Metal/Non-Metal
Duffield Aggregate of Missouri, LLC
· Surface
Controlled by
Luke B Duffield
Potosi,
Washington County,
MO
·
Active
MSHA Mine ID: 2302077
Duffield Aggregate of Missouri has $176K in proposed MSHA penalties and $3K outstanding across 11 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 1
- Total incidents
- 9
- Years on record
- 1998–2023
- Latest incident
- May 2023
Compliance record
MSHA citations since 2000
222
citations
55
significant & substantial
$175,536
proposed penalties
$146,389
paid to date
83% of proposed penalties paid to date, a $29,147 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
83
inspections on record
1,411
inspection hours
15.7
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.222 citations across 1,411 inspection hours.
Source: MSHA inspections data, updated weekly.
Duffield Aggregate of Missouri has $176K in proposed MSHA penalties and $3K outstanding across 11 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$176K
proposed penalties
$150K
current assessed
$146K
paid to date
$3K
outstanding
220 assessments are final orders; 11 contested dockets.
As of the most recent assessment on 2025-10-07.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.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 | 7,571 | 0 | 0 | 0.0 |
| 2025 Q2 | 7,232 | 2 | 1 | 276.5 |
| 2025 Q1 | 5,811 | 3 | 0 | 516.3 |
| 2024 Q4 | 10,978 | 0 | 0 | 0.0 |
| 2024 Q3 | 6,629 | 0 | 0 | 0.0 |
| 2024 Q2 | 5,192 | 5 | 0 | 963.0 |
| 2024 Q1 | 5,743 | 0 | 0 | 0.0 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 5,223 | 4 | 1 | 765.8 |
| 2023 Q3 | 5,718 | 0 | 0 | 0.0 |
| 2023 Q2 | 5,041 | 3 | 0 | 595.1 |
| 2023 Q1 | 5,031 | 0 | 0 | 0.0 |
| 2022 Q4 | 6,174 | 0 | 0 | 0.0 |
| 2022 Q3 | 7,570 | 5 | 1 | 660.5 |
| 2022 Q2 | 5,387 | 0 | 0 | 0.0 |
| 2022 Q1 | 4,010 | 2 | 0 | 498.8 |
| 2021 Q4 | 5,876 | 0 | 0 | 0.0 |
| 2021 Q3 | 6,299 | 26 | 8 | 4127.6 |
| 2021 Q2 | 6,582 | 0 | 0 | 0.0 |
| 2021 Q1 | 5,417 | 20 | 9 | 3692.1 |
| 2020 Q4 | 8,506 | 0 | 0 | 0.0 |
| 2020 Q3 | 7,856 | 0 | 0 | 0.0 |
| 2020 Q2 | 8,521 | 12 | 5 | 1408.3 |
| 2020 Q1 | 6,793 | 4 | 0 | 588.8 |
| 2019 Q4 | 8,561 | 0 | 0 | 0.0 |
| 2019 Q3 | 9,085 | 5 | 1 | 550.4 |
| 2019 Q2 | 8,536 | 0 | 0 | 0.0 |
| 2019 Q1 | 4,741 | 4 | 3 | 843.7 |
| 2018 Q4 | 7,441 | 0 | 0 | 0.0 |
| 2018 Q3 | 7,002 | 3 | 2 | 428.4 |
| 2018 Q2 | 6,744 | 0 | 0 | 0.0 |
| 2018 Q1 | 5,739 | 2 | 1 | 348.5 |
| 2017 Q4 | 7,142 | 0 | 0 | 0.0 |
| 2017 Q3 | 7,444 | 4 | 2 | 537.3 |
| 2017 Q2 | 6,603 | 0 | 0 | 0.0 |
| 2017 Q1 | 6,002 | 3 | 0 | 499.8 |
| 2016 Q4 | 6,998 | 0 | 0 | 0.0 |
| 2016 Q3 | 8,415 | 1 | 0 | 118.8 |
| 2016 Q2 | 6,585 | 0 | 0 | 0.0 |
| 2016 Q1 | 4,359 | 0 | 0 | 0.0 |
| 2015 Q4 | 6,153 | 2 | 0 | 325.0 |
| 2015 Q3 | 5,956 | 1 | 0 | 167.9 |
| 2015 Q2 | 5,487 | 2 | 1 | 364.5 |
| 2015 Q1 | 4,188 | 2 | 0 | 477.6 |
| 2014 Q4 | 4,990 | 0 | 0 | 0.0 |
| 2014 Q3 | 5,348 | 2 | 1 | 374.0 |
| 2014 Q2 | 4,884 | 0 | 0 | 0.0 |
| 2014 Q1 | 2,574 | 3 | 0 | 1165.5 |
| 2013 Q4 | 3,331 | 0 | 0 | 0.0 |
| 2013 Q3 | 4,184 | 3 | 0 | 717.0 |
| 2013 Q2 | 3,731 | 0 | 0 | 0.0 |
| 2013 Q1 | 2,236 | 1 | 1 | 447.2 |
| 2012 Q4 | 3,627 | 0 | 0 | 0.0 |
| 2012 Q3 | 3,463 | 2 | 0 | 577.5 |
| 2012 Q2 | 3,622 | 1 | 0 | 276.1 |
| 2012 Q1 | 2,810 | 1 | 0 | 355.9 |
| 2011 Q4 | 3,403 | 0 | 0 | 0.0 |
| 2011 Q3 | 3,303 | 1 | 0 | 302.8 |
| 2011 Q2 | 3,926 | 0 | 0 | 0.0 |
| 2011 Q1 | 2,251 | 1 | 0 | 444.2 |
| 2010 Q4 | 3,664 | 0 | 0 | 0.0 |
| 2010 Q3 | 3,627 | 0 | 0 | 0.0 |
| 2010 Q2 | 4,171 | 8 | 3 | 1918.0 |
| 2010 Q1 | 3,509 | 0 | 0 | 0.0 |
| 2009 Q4 | 4,592 | 2 | 0 | 435.5 |
| 2009 Q3 | 4,929 | 0 | 0 | 0.0 |
| 2009 Q2 | 3,698 | 0 | 0 | 0.0 |
| 2009 Q1 | 2,629 | 1 | 0 | 380.4 |
| 2008 Q4 | 3,626 | 3 | 1 | 827.4 |
| 2008 Q3 | 4,946 | 0 | 0 | 0.0 |
| 2008 Q2 | 5,662 | 0 | 0 | 0.0 |
| 2008 Q1 | 3,382 | 1 | 0 | 295.7 |
| 2007 Q4 | 6,230 | 0 | 0 | 0.0 |
| 2007 Q3 | 4,781 | 3 | 1 | 627.5 |
| 2007 Q2 | 4,221 | 0 | 0 | 0.0 |
| 2007 Q1 | 2,951 | 2 | 0 | 677.7 |
| 2006 Q4 | 3,855 | 0 | 0 | 0.0 |
| 2006 Q3 | 4,010 | 0 | 0 | 0.0 |
| 2006 Q2 | 4,750 | 0 | 0 | 0.0 |
| 2006 Q1 | 3,969 | 0 | 0 | 0.0 |
| 2005 Q4 | 5,148 | 0 | 0 | 0.0 |
| 2005 Q3 | 6,190 | 0 | 0 | 0.0 |
| 2005 Q2 | 4,935 | 1 | 0 | 202.6 |
| 2005 Q1 | 3,245 | 0 | 0 | 0.0 |
| 2004 Q4 | 3,212 | 1 | 0 | 311.3 |
| 2004 Q3 | 3,263 | 8 | 2 | 2451.7 |
| 2004 Q2 | 3,324 | 0 | 0 | 0.0 |
| 2004 Q1 | 2,785 | 6 | 0 | 2154.4 |
| 2003 Q4 | 3,186 | 0 | 0 | 0.0 |
| 2003 Q3 | 2,789 | 0 | 0 | 0.0 |
| 2003 Q2 | 2,529 | 10 | 1 | 3954.1 |
| 2003 Q1 | 2,152 | 0 | 0 | 0.0 |
| 2002 Q4 | 3,030 | 0 | 0 | 0.0 |
| 2002 Q3 | 3,161 | 0 | 0 | 0.0 |
| 2002 Q2 | 2,942 | 11 | 2 | 3739.0 |
| 2002 Q1 | 3,063 | 0 | 0 | 0.0 |
| 2001 Q4 | 2,437 | 0 | 0 | 0.0 |
| 2001 Q3 | 4,931 | 0 | 0 | 0.0 |
| 2001 Q2 | 4,438 | 11 | 2 | 2478.6 |
| 2001 Q1 | 2,880 | 0 | 0 | 0.0 |
| 2000 Q4 | 0 | 0 | 0 | |
| 2000 Q3 | 1,068 | 0 | 0 | 0.0 |
| 2000 Q2 | 1,293 | 14 | 4 | 10827.5 |
| 2000 Q1 | 1,491 | 0 | 0 | 0.0 |
Fatalities at this mine
1 recordedReportable incidents
8 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
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.
1998 · 1 incident
Washington County Quarry Inc · Over-exertion (Not Elsewhere Classified)
EE STATES. WAS LOADING A SHOT AND CARRYING BAGS FROM THE TRUCK TO THE HOLES WHEN I SLIPPED ON A ROCK ANF FELT A PULL IN MY BACK.
For insurers, brokers, and safety consultants
The full compliance file on Duffield Aggregate of Missouri
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.