Mining Incidents

Old Monroe Materials, LLC Metal/Non-Metal

Old Monroe, Lincoln County, MO  ·  Active
MSHA Mine ID: 2302520

Old Monroe Materials, LLC has $22K in proposed MSHA penalties and $14K outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2017
52
citations
14
significant & substantial
$21,950
proposed penalties
$8,263
paid to date
38% of proposed penalties paid to date, a $13,687 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
22
inspections on record
284
inspection hours
n/a
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.
Rate withheld: 284 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Old Monroe Materials, LLC has $22K in proposed MSHA penalties and $14K outstanding across 2 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.
$22K
proposed penalties
$22K
current assessed
$8K
paid to date
$14K
outstanding
46 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2026-04-30.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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 2,258 0 0 0.0
2025 Q3 2,144 0 0 0.0
2025 Q2 2,553 2 0 783.4
2025 Q1 2,288 6 1 2622.4
2024 Q4 2,094 0 0 0.0
2024 Q3 2,229 3 0 1345.9
2024 Q2 2,135 0 0 0.0
2024 Q1 1,728 0 0 0.0
Show 15 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 1,938 0 0 0.0
2023 Q3 2,320 0 0 0.0
2023 Q2 2,895 0 0 0.0
2023 Q1 909 5 0 5500.6
2022 Q4 1,016 0 0 0.0
2022 Q3 702 0 0 0.0
2022 Q2 185 3 0 16216.2
2022 Q1 520 0 0 0.0
2020 Q3 1,500 2 0 1333.3
2020 Q2 1,200 0 0 0.0
2020 Q1 1,200 2 0 1666.7
2019 Q1 600 0 0 0.0
2018 Q3 1,800 0 0 0.0
2018 Q2 2,740 2 1 729.9
2017 Q3 3,000 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.

For insurers, brokers, and safety consultants

The full compliance file on Old Monroe Materials, 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.