United Aggregates Inc. has $28K in proposed MSHA penalties and $151 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
1
Years on record
2007
Latest incident
Mar 2007
Compliance record
MSHA citations since 2005
87
citations
24
significant & substantial
$28,281
proposed penalties
$21,392
paid to date
76% of proposed penalties paid to date, a $6,889 gap.
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: 576 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
United Aggregates Inc. has $28K in proposed MSHA penalties and $151 outstanding across 1 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.
$28K
proposed penalties
$22K
current assessed
$21K
paid to date
$151
outstanding
87 assessments are final orders; 1 contested dockets.
Of $10K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2025-11-18.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
ⓘShares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘContesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
1citations taken to the federal commission · 1% of citations on record
Settled
1 · 100%
100%
S&S designation survived the contest
ⓘCounts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1 decided S&S contests · industry: 79%
71%
Penalty reduction in decided contests
$10K proposed, $3K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2024-03-17.
Contested penalties
ⓘA reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Health sampling
ⓘA sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.
Metal and nonmetal contaminants (personal samples)
ⓘMany samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2025-05-07
0%
of limit-tested samples over the exposure limit
14
samples
4
limit-tested
Most sampled contaminants
Respirable dust, <.1mg8
Quartz, respirable, >1% Qtz6
Show the individual readings (14)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-05-07
Respirable dust, <.1mg
0
Utility Man
2023-09-14
Quartz, respirable, >1% Qtz
0.2
0.98
0.20
Utility Man
2023-09-14
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2023-09-14
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-09-14
Quartz, respirable, >1% Qtz
0.21
0.53
0.40
Front-end Loader Operator
2019-09-26
Quartz, respirable, >1% Qtz
0.14
Supervisor, Co. Official
2019-09-26
Quartz, respirable, >1% Qtz
0.23
0.61
0.38
Front-end Loader Operator
2019-09-26
Quartz, respirable, >1% Qtz
0.35
0.6
0.58
Utility Man
2019-09-26
Quartz, respirable, >1% Qtz
0.18
Utility Man
2017-10-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-04-30
Respirable dust, <.1mg
0
Scale Man
2014-04-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-11-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-06-29
Respirable dust, <.1mg
0
Front-end Loader Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
7
2025
7
2024
6
2023
5
2022
4
2021
3
2020
3
2019
3
2018
2
2017
2
2016
2
2015
2
2014
2
2013
2
2012
2
2011
2
2010
2
2009
2
2008
2
2007
3
2006
2
2005
3
2004
8
2003
5
Source: MSHA quarterly employment and production, updated weekly.
United Aggregates Inc. sits in Knox County, Ohio, where the Census mining category is 0.5% of county employment.
Local economic context
ⓘCounty figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Knox County, Ohio · Population 62,888
0.5%
Mining share of county employment
$73,988
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
Employee was feeling sick and was sweating. He shut loader off, put machine in park and got out of cab to get some air. He remembers starting to exit loader and nothing else until truck driver found him laying on the ground beside the loader.