Mining Incidents

Con-Agg Companies, LLC operator

Controlled by Summit Materials LLC
MSHA operator ID: 0051041
Fatalities
1
Total incidents
41
Mines on record
17
Years on record
2002–2026
Compliance record
MSHA citations since 2002
545
citations
91
significant & substantial
$126,306
proposed penalties
$117,020
paid to date
93% of proposed penalties paid to date, a $9,286 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
543
inspections on record
7,491
inspection hours
7.3
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.
545 citations across 7,491 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$126K
proposed penalties
$119K
current assessed
$117K
paid to date
$2K
outstanding
542 assessments are final orders; 13 contested dockets.
As of the most recent assessment on 2026-03-12.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2026
1
2025
1
2024
2
2023
3
2022
2
2021
7
2020
5
2019
2
2018
1
2017
1
2016
4
2013
1 (1f)
2011
1
2009
3
2008
1
2007
1
2005
1
2003
1
2002
3

Mines on record

Fatalities under this operator

1 recorded
September 16, 2013 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE
Con-Agg Companies, LLC · Struck against a moving object

On Monday 9/16/13 at 09:25a.m. a pit/haul truck driver, in truck number 22-2012, with 25 years, 42 weeks experience turned left and crashed through the protection berm and fell 80 feet to the pit floor

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The full compliance file on Con-Agg Companies, LLC

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.