Mid Ohio Aggregates has $2K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
1
Years on record
2010
Latest incident
Feb 2010
Compliance record
MSHA citations since 2007
11
citations
5
significant & substantial
$1,589
proposed penalties
$1,589
paid to date
100% of proposed penalties paid to date, a $0 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: 147 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Mid Ohio Aggregates has $2K in proposed MSHA penalties and $0 outstanding across 0 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
11 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2014-01-13.
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.
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: 2010-10-19, 15 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg2
Quartz, respirable, >1% Qtz1
Show the individual readings (3)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2010-10-19
Respirable dust, <.1mg
0
Dredge/Barge Operator
2010-10-19
Quartz, respirable, >1% Qtz
0.14
1.43
0.10
Front-end Loader Operator
2010-10-19
Respirable dust, <.1mg
0
Crusher Oper/Worker
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
3
2025
2
2024
1
2014
2
2013
2
2012
2
2011
4
2010
4
2009
4
2008
4
2007
4
2006
4
2005
1
Source: MSHA quarterly employment and production, updated weekly.
Mid Ohio Aggregates sits in Richland County, Ohio, where the Census mining category is 0.1% 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.
Richland County, Ohio · Population 125,138
0.1%
Mining share of county employment
$57,649
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
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2026 Q2
2,383
0
0
0.0
2026 Q1
890
0
0
0.0
2025 Q4
1,461
0
0
0.0
2025 Q3
699
0
0
0.0
2025 Q2
80
0
0
0.0
2024 Q3
2
0
0
0.0
2014 Q1
346
1
0
2890.2
2013 Q4
566
0
0
0.0
Show 32 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2013 Q3
443
0
0
0.0
2013 Q2
31
0
0
0.0
2013 Q1
84
0
0
0.0
2012 Q4
350
0
0
0.0
2012 Q3
468
0
0
0.0
2012 Q2
432
1
0
2314.8
2012 Q1
1,527
0
0
0.0
2011 Q4
2,352
0
0
0.0
2011 Q3
2,703
0
0
0.0
2011 Q2
2,245
0
0
0.0
2011 Q1
1,589
0
0
0.0
2010 Q4
2,217
1
1
451.1
2010 Q3
2,356
0
0
0.0
2010 Q2
2,103
0
0
0.0
2010 Q1
1,454
0
0
0.0
2009 Q4
2,019
3
3
1485.9
2009 Q3
2,369
0
0
0.0
2009 Q2
1,994
0
0
0.0
2009 Q1
1,516
0
0
0.0
2008 Q4
2,046
0
0
0.0
2008 Q3
2,294
2
0
871.8
2008 Q2
2,168
0
0
0.0
2008 Q1
1,445
0
0
0.0
2007 Q4
2,217
0
0
0.0
2007 Q3
2,740
3
1
1094.9
2007 Q2
2,569
0
0
0.0
2007 Q1
988
0
0
0.0
2006 Q4
2,765
0
0
0.0
2006 Q3
2,703
0
0
0.0
2006 Q2
1,675
0
0
0.0
2006 Q1
869
0
0
0.0
2005 Q4
650
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2010 · 1 incident
February 12, 2010OH · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON