Mining Incidents

Monarch Mountain Minerals & Aggregates, LLC operator

Controlled by Quikrete Holdings Inc.
MSHA operator ID: 0122411
Fatalities
0
Total incidents
9
Mines on record
5
Years on record
2012–2017
Compliance record
MSHA citations since 2012
223
citations
43
significant & substantial
$56,337
proposed penalties
$49,164
paid to date
87% of proposed penalties paid to date, a $7,173 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2012
151
inspections on record
2,209
inspection hours
10.1
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.
223 citations across 2,209 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.
$56K
proposed penalties
$56K
current assessed
$49K
paid to date
$7K
outstanding
203 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2026-05-13.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2016
3
2013
2
2012
3

Mines on record

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The full compliance file on Monarch Mountain Minerals & Aggregates, 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.