Mid MO Mining LLC has $13K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
4
Years on record
2009–2025
Latest incident
Jan 2025
Compliance record
MSHA citations since 2005
86
citations
24
significant & substantial
$12,657
proposed penalties
$11,980
paid to date
95% of proposed penalties paid to date, a $677 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: 687 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 MO Mining LLC has $13K in proposed MSHA penalties and $0 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.
$13K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
80 assessments are final orders; 1 contested dockets.
Of $873 in penalties contested before the Commission, $196 was upheld in final decisions.
As of the most recent assessment on 2026-02-04.
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%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
78%
Penalty reduction in decided contests
$873 proposed, $196 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 2013-02-20.
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: 2026-07-21
0%
of limit-tested samples over the exposure limit
24
samples
8
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz13
Respirable dust, <.1mg6
Unlisted Particulate, respirable, <1% Qtz5
Show the individual readings (24)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-07-21
Quartz, respirable, >1% Qtz
0.2
0.83
0.24
Truck Driver
2026-07-21
Quartz, respirable, >1% Qtz
0.23
0.8
0.29
Utility Man
2026-07-21
Quartz, respirable, >1% Qtz
0.16
0.59
0.27
Bulldozer Operator
2024-12-11
Unlisted Particulate, respirable, <1% Qtz
0.2
Rotary Bucket Ex. Operator
2024-12-11
Quartz, respirable, >1% Qtz
0.22
Truck Driver
2024-12-11
Quartz, respirable, >1% Qtz
0.24
1.22
0.20
Front-end Loader Operator
2024-08-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-08-15
Quartz, respirable, >1% Qtz
0.13
Crusher Oper/Worker
2022-12-01
Quartz, respirable, >1% Qtz
0.19
Front-end Loader Operator
2022-12-01
Quartz, respirable, >1% Qtz
0.24
Truck Driver
2022-12-01
Quartz, respirable, >1% Qtz
0.13
Crusher Oper/Worker
2022-12-01
Respirable dust, <.1mg
0
Truck Driver
2022-03-09
Unlisted Particulate, respirable, <1% Qtz
0.69
Crusher Oper/Worker
2022-03-09
Unlisted Particulate, respirable, <1% Qtz
0.25
Front-end Loader Operator
2017-03-22
Quartz, respirable, >1% Qtz
0.16
1.16
0.14
Front-end Loader Operator
2017-03-22
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-03-22
Quartz, respirable, >1% Qtz
0.55
0.92
0.60
Crusher Oper/Worker
2017-03-22
Quartz, respirable, >1% Qtz
0.19
1.54
0.12
Truck Driver
2013-05-15
Unlisted Particulate, respirable, <1% Qtz
0.15
Front-end Loader Operator
2013-05-15
Respirable dust, <.1mg
0
Complete Load-Haul-Dump
2013-05-15
Quartz, respirable, >1% Qtz
0.16
1.39
0.12
Crusher Oper/Worker
2010-09-15
Unlisted Particulate, respirable, <1% Qtz
0.22
Truck Driver
2010-09-15
Respirable dust, <.1mg
0
Truck Driver
2010-09-15
Respirable dust, <.1mg
0
Gathering Arm 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
11
2025
10
2024
8
2023
9
2022
7
2021
9
2020
7
2019
9
2018
9
2017
8
2016
11
2015
7
2014
5
2013
6
2012
9
2011
9
2010
3
2009
3
2008
3
2007
2
2006
2
2005
2
Source: MSHA quarterly employment and production, updated weekly.
Mid MO Mining LLC sits in Callaway County, Missouri, where the Census mining category is 0.3% 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.
Callaway County, Missouri · Population 44,541
0.3%
Mining share of county employment
$72,645
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
Mid MO Mining LLC · Caught in, under or between a moving and a stationary object
Employee was checking fluids on a haul truck. EE was in between the door and haul truck frame when another employee got into a skid steer and backed into the open hood on the haul truck pinning EE in between. Upon evaluation there were no visible cuts or lacerations, the supervisor told EE that EE needed to get medical attention, which EE refused at that time.
2019 · 1 incident
March 21, 2019MO · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerFIRE
Trees and brush were being cleared on mine property and burned outdoors. The wind blew a spark to an adjacent location and caught some leaves on fire. Employees immediately got fire extinguishers to extinguish the fire. EE inhaled some smoke that caused some breathing difficulty.
2015 · 1 incident
December 22, 2015MO · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorIGNITION OR EXPLOSION OF GAS OR DUST
Because of poor illumination the miner could not see and did not use his flashlight. He used his cigarette lighter and the fuel barrel exploded, causing the miner to be burned. He was taken to a hospital with a trauma center for treatment of burns to his face, arm and hand.
Fire started on two trucks parked outside of our Office/Shop Facility and spread to Office/Shop and burned the facility down. Both trucks burned along with another truck parked inside of the Office/Shop. The Office/Shop Facility was a total loss.