Mining Incidents

AA Quarry LLC: 242 MSHA citations Metal/Non-Metal

AA Quarry LLC · Underground
Kingsville, Johnson County, MO  ·  Active
MSHA Mine ID: 2302487

AA Quarry LLC has $141K in proposed MSHA penalties and $4K outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2023
Latest incident
Mar 2023
Compliance record
MSHA citations since 2015
242
citations
39
significant & substantial
$140,816
proposed penalties
$91,490
paid to date
65% of proposed penalties paid to date, a $49,326 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
82
inspections on record
1,866
inspection hours
13.0
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.
242 citations across 1,866 inspection hours.
Source: MSHA inspections data, updated weekly.

AA Quarry LLC has $141K in proposed MSHA penalties and $4K outstanding across 5 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.
$141K
proposed penalties
$95K
current assessed
$91K
paid to date
$4K
outstanding
227 assessments are final orders; 5 contested dockets.
Of $67K in penalties contested before the Commission, $16K was upheld in final decisions.
As of the most recent assessment on 2026-07-08.
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.
16.1%
significant & substantial
3.3%
high negligence or reckless
16.1%
reasonably likely or greater
62.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.7% low, 76.0% moderate, 3.3% high, 0.0% reckless.
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.
23 citations taken to the federal commission · 10% of citations on record
  • Settled 21 · 91%
  • Vacated or withdrawn 2 · 9%
58%
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 12 decided S&S contests · industry: 79%
76%
Penalty reduction in decided contests
$67K proposed, $16K 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 2025-02-23.
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.
Docket Decision Judge Year Proposed / upheld
CENT 2024-0098 Settlement Sullivan 2024 $34K → $621
CENT 2025-0070 Settlement Bulluck 2025 $15K → $6K
CENT 2025-0155 Settlement Simonton 2025 $9K → $6K
CENT 2020-0140 Settlement Miller 2020 $5K → $2K
CENT 2024-0093 Settlement Paez 2025 $4K → $872
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2026-07-15
18%
of limit-tested samples over the exposure limit
51
samples
40
limit-tested
Most sampled contaminants
  • Diesel particulate (total carbon)256 over
  • Nuisance dust, total, <1% Qtz91 over
  • Quartz, respirable, >1% Qtz11
  • Respirable dust, <.1mg5
Show the individual readings (100)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-09-03 TC @ 160 322 160 2.01 Blaster, Powder Gang
2025-09-03 EC @ 160 244 160 1.53 Blaster, Powder Gang
2025-09-03 TC @ 160 162 160 1.01 Drill Operator, Rotary
2025-07-30 TC @ 160 785 160 4.91 Blaster, Powder Gang
2025-07-30 EC @ 160 447 160 2.79 Blaster, Powder Gang
2025-07-30 EC @ 160 293 160 1.83 Drill Operator, Rotary
2025-07-30 TC @ 160 363 160 2.27 Drill Operator, Rotary
2024-12-04 Nuisance dust, total, <1% Qtz 17.79 10 1.78 Blaster, Powder Gang
2023-11-01 TC @ 160 179 160 1.12 Drill Operator, Jumbo Perc.
2023-11-01 TC @ 160 173 160 1.08 Utility Man
2026-07-15 Nuisance dust, total, <1% Qtz 1.18 10 0.12 Truck Driver
2026-07-15 Nuisance dust, total, <1% Qtz 1.56 10 0.16 Drill Operator, Jumbo Perc.
2026-07-15 Nuisance dust, total, <1% Qtz 4.79 10 0.48 Drill Operator, Jumbo Perc.
2026-07-15 Nuisance dust, total, <1% Qtz 3.41 10 0.34 Utility Man
2026-07-15 Nuisance dust, total, <1% Qtz 3.87 10 0.39 Crusher Oper/Worker
2026-04-08 EC @ 160 49 160 0.31 Front-end Loader Operator
2026-04-08 ORGANIC CARBON 0 Truck Driver
2026-04-08 TC @ 160 0 160 0.00 Truck Driver
2026-04-08 EC @ 160 0 160 0.00 Truck Driver
2026-04-08 TC from EC @ 160 0 160 0.00 Truck Driver
2026-04-08 ORGANIC CARBON 0 Front-end Loader Operator
2026-04-08 TC @ 160 92 160 0.58 Front-end Loader Operator
2026-04-08 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2025-09-23 ORGANIC CARBON 0 Blaster, Powder Gang
2025-09-23 TC @ 160 89 160 0.56 Blaster, Powder Gang
2025-09-23 EC @ 160 65 160 0.41 Blaster, Powder Gang
2025-09-23 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2025-09-03 ORGANIC CARBON 79 Blaster, Powder Gang
2025-09-03 ORGANIC CARBON 0 Drill Operator, Rotary
2025-09-03 EC @ 160 128 160 0.80 Drill Operator, Rotary
2025-09-03 TC from EC @ 160 0 160 0.00 Drill Operator, Rotary
2025-09-03 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2025-07-30 ORGANIC CARBON 70 Drill Operator, Rotary
2025-07-30 TC from EC @ 160 0 160 0.00 Drill Operator, Rotary
2025-07-30 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2025-07-30 ORGANIC CARBON 338 Blaster, Powder Gang
2024-12-04 Quartz, respirable, >1% Qtz 0.98 1.52 0.64 Crusher Oper/Worker
2024-12-04 Quartz, respirable, >1% Qtz 0.18 Truck Driver
2024-12-04 Nuisance dust, total, <1% Qtz 4.55 10 0.46 Blaster, Powder Gang
2024-12-04 Nuisance dust, total, <1% Qtz 2.43 10 0.24 Supervisor, Co. Official
2024-12-04 Nuisance dust, total, <1% Qtz 3.55 10 0.36 Drill Operator, Jumbo Perc.
2024-12-04 Quartz, respirable, >1% Qtz 0.32 1.49 0.21 Crusher Oper/Worker
2024-12-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-07-24 TC @ 160 40 160 0.25 Drill Operator, Jumbo Perc.
2024-07-24 EC @ 160 31 160 0.19 Drill Operator, Jumbo Perc.
2024-07-24 TC from EC @ 160 0 160 0.00 Drill Operator, Jumbo Perc.
2024-07-24 ORGANIC CARBON 0 Utility Man
2024-07-24 TC from EC @ 160 0 160 0.00 Utility Man
2024-07-24 TC @ 160 91 160 0.57 Utility Man
2024-07-24 EC @ 160 63 160 0.39 Utility Man
2024-07-24 ORGANIC CARBON 0 Drill Operator, Jumbo Perc.
2023-11-01 TC @ 160 102 160 0.64 Blaster, Powder Gang
2023-11-01 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2023-11-01 EC @ 160 77 160 0.48 Blaster, Powder Gang
2023-11-01 ORGANIC CARBON 0 Blaster, Powder Gang
2023-11-01 TC from EC @ 160 0 160 0.00 Drill Operator, Jumbo Perc.
2023-11-01 EC @ 160 95 160 0.59 Drill Operator, Jumbo Perc.
2023-11-01 ORGANIC CARBON 86 Drill Operator, Jumbo Perc.
2023-11-01 TC from EC @ 160 0 160 0.00 Utility Man
2023-11-01 EC @ 160 135 160 0.84 Utility Man
2023-11-01 ORGANIC CARBON 38 Utility Man
2023-06-22 Respirable dust, <.1mg 0 Truck Driver
2023-06-22 Quartz, respirable, >1% Qtz 0.4 Crusher Oper/Worker
2023-06-22 Quartz, respirable, >1% Qtz 0.19 Truck Driver
2023-06-22 Quartz, respirable, >1% Qtz 0.4 1.1 0.36 Laborer, Bullgang
2022-08-10 ORGANIC CARBON 0 Laborer, Bullgang
2022-08-10 ORGANIC CARBON 0 Laborer, Bullgang
2022-08-10 TC @ 160 63 160 0.39 Laborer, Bullgang
2022-08-10 TC @ 160 50 160 0.31 Laborer, Bullgang
2022-08-10 EC @ 160 0 160 0.00 Laborer, Bullgang
2022-08-10 TC from EC @ 160 0 160 0.00 Laborer, Bullgang
2022-08-10 EC @ 160 43 160 0.27 Laborer, Bullgang
2022-08-10 TC from EC @ 160 0 160 0.00 Laborer, Bullgang
2022-08-10 ORGANIC CARBON 31 Truck Driver
2022-08-10 TC @ 160 71 160 0.44 Truck Driver
2022-08-10 EC @ 160 40 160 0.25 Truck Driver
2022-08-10 TC from EC @ 160 0 160 0.00 Truck Driver
2022-08-10 ORGANIC CARBON 0 Front-end Loader Operator
2022-08-10 TC @ 160 39 160 0.24 Front-end Loader Operator
2022-08-10 EC @ 160 0 160 0.00 Front-end Loader Operator
2022-08-10 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2021-06-08 EC @ 160 0 160 0.00 Laborer, Bullgang
2021-06-08 TC from EC @ 160 0 160 0.00 Laborer, Bullgang
2021-06-08 ORGANIC CARBON 0 Laborer, Bullgang
2021-06-08 TC @ 160 46 160 0.29 Laborer, Bullgang
2020-12-16 TC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC from EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC from EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC from EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 EC @ 160 0 160 0.00 Cement/Concrete Man
2020-12-16 TC from EC @ 160 0 160 0.00 Cement/Concrete Man
2020-09-23 Respirable dust, <.1mg 0 Truck Driver
2020-09-23 Quartz, respirable, >1% Qtz 0.23 Crusher Oper/Worker
2020-03-10 Quartz, respirable, >1% Qtz 0.16 Truck Driver
Showing 100 of 118 laboratory readings: every over-limit reading, then the most recent. MSHA reads one air sample several times, so readings outnumber the samples counted above. The full set is in MSHA's Personal Health Samples file.

Area samples (mill and shop air)

Last sampled: 2026-07-15
13
samples
Show the individual readings (24)
Date Contaminant Concentration Limit Conc / limit Area sampled
2026-07-15 QUARTZ (BULK DUST) 0 MP DRY SCREENING
2026-07-15 ANALYZED BULK DUST MASS 0 MP DRY SCREENING
2026-07-15 QUARTZ (BULK DUST) 0 UG ORE PROCESSING
2026-07-15 ANALYZED BULK DUST MASS 0 UG ORE PROCESSING
2026-04-08 EC @ 160 0 UG ACTIVE MINING
2026-04-08 TC @ 160 0 UG ACTIVE MINING
2025-09-23 TC @ 160 0 UG SHAFT/STATION
2025-09-23 EC @ 160 0 UG SHAFT/STATION
2025-09-03 TC @ 160 228 UG SHAFT/STATION
2025-09-03 EC @ 160 191 UG SHAFT/STATION
2025-07-30 EC @ 160 0 UG SHAFT/STATION
2025-07-30 TC @ 160 0 UG SHAFT/STATION
2024-12-04 Nuisance dust, total, <1% Qtz 0.61 UG GENERAL
2024-12-04 Nuisance dust, total, <1% Qtz 1.64 UG ACTIVE MINING
2024-12-03 QUARTZ (BULK DUST) 0 SF ORE PROCESSING
2024-12-03 ANALYZED BULK DUST MASS 0 SF ORE PROCESSING
2024-07-24 EC @ 160 0 UG SHAFT/STATION
2024-07-24 TC @ 160 0 UG SHAFT/STATION
2023-11-01 TC @ 160 0 UG TRAVEL/HAULAGE
2023-11-01 EC @ 160 0 UG TRAVEL/HAULAGE
2022-08-10 TC @ 160 0 UG TRAVEL/HAULAGE
2022-08-10 EC @ 160 0 UG TRAVEL/HAULAGE
2021-06-08 TC from EC @ 160 0 UG EXPLOR/DEVELOP
2021-06-08 EC @ 160 0 UG EXPLOR/DEVELOP
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.

AA Quarry LLC recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.13 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 0.00 0.00 0.000
2024 * 0.00 0.00 0.000
2023 * 7.86 7.86 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2017 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. AA Quarry LLC 2014 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 24
2025 21
2024 20
2023 22
2022 21
2021 19
2020 15
2019 12
2018 10
2017 10
2016 8
2015 7
Source: MSHA quarterly employment and production, updated weekly.

AA Quarry LLC sits in Johnson County, Missouri, 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.
Johnson County, Missouri · Population 54,331
0.1%
Mining share of county employment
$67,123
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 13,760 6 1 436.0
2026 Q1 11,970 7 0 584.8
2025 Q4 11,854 4 0 337.4
2025 Q3 12,701 6 3 472.4
2025 Q2 11,595 4 0 345.0
2025 Q1 8,825 7 1 793.2
2024 Q4 10,894 12 3 1101.5
2024 Q3 11,955 8 0 669.2
Show 38 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 11,820 13 2 1099.8
2024 Q1 12,739 1 1 78.5
2023 Q4 11,488 4 1 348.2
2023 Q3 12,016 7 1 582.6
2023 Q2 13,462 11 2 817.1
2023 Q1 13,936 12 3 861.1
2022 Q4 12,144 10 2 823.5
2022 Q3 13,873 5 1 360.4
2022 Q2 18,410 4 0 217.3
2022 Q1 11,045 7 1 633.8
2021 Q4 11,196 3 0 268.0
2021 Q3 11,164 5 0 447.9
2021 Q2 9,993 5 1 500.4
2021 Q1 8,774 9 0 1025.8
2020 Q4 6,773 6 0 885.9
2020 Q3 8,861 4 1 451.4
2020 Q2 8,008 6 1 749.3
2020 Q1 6,115 11 2 1798.9
2019 Q4 5,971 6 0 1004.9
2019 Q3 6,854 0 0 0.0
2019 Q2 7,287 12 3 1646.8
2019 Q1 3,752 8 1 2132.2
2018 Q4 4,435 0 0 0.0
2018 Q3 5,006 4 0 799.0
2018 Q2 4,814 0 0 0.0
2018 Q1 4,078 3 1 735.7
2017 Q4 4,833 0 0 0.0
2017 Q3 7,046 4 2 567.7
2017 Q2 6,536 0 0 0.0
2017 Q1 4,684 3 1 640.5
2016 Q4 4,117 0 0 0.0
2016 Q3 4,263 0 0 0.0
2016 Q2 4,707 2 0 424.9
2016 Q1 4,046 0 0 0.0
2015 Q4 3,782 4 2 1057.6
2015 Q3 4,280 2 0 467.3
2015 Q2 3,492 0 0 0.0
2015 Q1 2,632 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2023 · 2 incidents

March 31, 2023 MO · Metal/Non-Metal miner, nec FALL OF ROOF OR BACK
AA Quarry LLC · Struck by falling object

Two men were in man lift, building a bulk head, when a piece of sand stone that they previously tried to scale was knocked down. It struck both men, resulting in one having a fractured wrist and the other having bruised ribs.

March 31, 2023 MO · Metal/Non-Metal miner, nec FALL OF ROOF OR BACK
AA Quarry LLC · Struck by falling object

Two men were in man lift, building a bulk head, when a piece of sand stone that they previously tried to scale was knocked down. It struck both men, resulting in one having a fractured wrist and the other having bruised ribs.