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Sedalia Quarry: 123 MSHA citations Metal/Non-Metal

Sedalia, Pettis County, MO  ·  Active
MSHA Mine ID: 2302153

Sedalia Quarry has $33K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
9
Years on record
1997–2020
Latest incident
May 2020
Compliance record
MSHA citations since 2000
123
citations
37
significant & substantial
$33,312
proposed penalties
$30,533
paid to date
92% of proposed penalties paid to date, a $2,779 gap.
Source: MSHA violations data, updated weekly.
See Martin Marietta Materials, Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
72
inspections on record
997
inspection hours
n/a
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: 997 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘ A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2010-07-14.
On record since 2010.
Source: MSHA imminent-danger order records, updated weekly.

Sedalia Quarry has $33K in proposed MSHA penalties and $0 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.
$33K
proposed penalties
$31K
current assessed
$31K
paid to date
$0
outstanding
122 assessments are final orders; 5 contested dockets.
Of $15K in penalties contested before the Commission, $11K was upheld in final decisions.
As of the most recent assessment on 2024-07-03.
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.
30.3%
significant & substantial
4.1%
high negligence or reckless
30.3%
reasonably likely or greater
60.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 23.0% low, 73.0% moderate, 4.1% 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.
18 citations taken to the federal commission · 15% of citations on record
  • Settled 15 · 83%
  • Stood as issued 1 · 6%
  • Vacated or withdrawn 2 · 11%
75%
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 8 decided S&S contests · industry: 79%
22%
Penalty reduction in decided contests
$15K proposed, $11K 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 2013-07-01.
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 2011-1239M Settlement Zielinski 2012 $9K → $8K
CENT 2010-582M Settlement Lesnick 2012 $2K → $2K
CENT 2010-1306M Settlement Lesnick 2011 $2K → $753
CENT 2011-543M Settlement Barbour 2011 $2K → $790
CENT 2013-575M Settlement Lesnick 2013 $100 → $100
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: 2023-06-27, 3 years ago
3%
of limit-tested samples over the exposure limit
44
samples
32
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz131 over
  • Nuisance dust, respirable, <1% Qtz16
  • Respirable dust, <.1mg10
  • Nuisance dust, total, <1% Qtz4
Show the individual readings (44)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-02-03 Quartz, respirable, >1% Qtz 1.99 1.11 1.79 Crusher Oper/Worker
2023-06-27 Respirable dust, <.1mg 0 Truck Driver
2023-06-27 Quartz, respirable, >1% Qtz 0.29 1.09 0.27 Front-end Loader Operator
2019-07-02 Respirable dust, <.1mg 0 Truck Driver
2019-07-02 Quartz, respirable, >1% Qtz 0.85 1.39 0.61 Cleanup Man
2019-07-02 Quartz, respirable, >1% Qtz 0.37 Crusher Oper/Worker
2019-07-02 Respirable dust, <.1mg 0 Truck Driver
2018-12-12 Nuisance dust, total, <1% Qtz 0.14 10 0.01 Scale Man
2018-12-12 Nuisance dust, total, <1% Qtz 0.26 10 0.03 Truck Driver
2018-12-12 Nuisance dust, total, <1% Qtz 1.82 10 0.18 Cleanup Man
2018-12-12 Nuisance dust, total, <1% Qtz 0.38 10 0.04 Crusher Oper/Worker
2017-10-25 Unlisted Particulate, respirable, <1% Qtz 0.17 Rotary Bucket Ex. Operator
2017-10-25 Quartz, respirable, >1% Qtz 0.75 2.17 0.35 Cleanup Man
2017-10-25 Respirable dust, <.1mg 0 Truck Driver
2017-10-25 Nuisance dust, respirable, <1% Qtz 0.21 10 0.02 Front-end Loader Operator
2016-08-04 Respirable dust, <.1mg 0 Utility Man
2016-08-04 Respirable dust, <.1mg 0 Truck Driver
2016-08-04 Nuisance dust, respirable, <1% Qtz 0.23 10 0.02 Crusher Oper/Worker
2011-06-15 Nuisance dust, respirable, <1% Qtz 0.3 10 0.03 Front-end Loader Operator
2011-06-15 Nuisance dust, respirable, <1% Qtz 1.08 10 0.11 Crusher Oper/Worker
2011-06-15 Quartz, respirable, >1% Qtz 0.32 1.63 0.20 Truck Driver
2010-07-14 Nuisance dust, respirable, <1% Qtz 0.36 10 0.04 Crusher Oper/Worker
2010-07-14 Nuisance dust, respirable, <1% Qtz 0.56 10 0.06 Front-end Loader Operator
2010-07-14 Nuisance dust, respirable, <1% Qtz 0.49 10 0.05 Truck Driver
2010-07-14 Nuisance dust, respirable, <1% Qtz 0.28 10 0.03 Truck Driver
2009-03-04 Respirable dust, <.1mg 0 Drill Operator, Rotary Air
2009-03-04 Quartz, respirable, >1% Qtz 0.42 2.89 0.15 Truck Driver
2006-07-26 Nuisance dust, respirable, <1% Qtz 0.18 10 0.02 Drill Operator, Rotary Air
2006-07-26 Quartz, respirable, >1% Qtz 0.89 2.38 0.37 Crusher Oper/Worker
2006-07-26 Nuisance dust, respirable, <1% Qtz 0.37 10 0.04 Front-end Loader Operator
2006-07-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-07-26 Quartz, respirable, >1% Qtz 0.91 3.11 0.29 Truck Driver
2005-04-20 Quartz, respirable, >1% Qtz 1.21 2.76 0.44 Crusher Oper/Worker
2005-02-03 Respirable dust, <.1mg 0 Laborer, Bullgang
2005-02-03 Nuisance dust, respirable, <1% Qtz 0.37 10 0.04 Truck Driver
2005-02-03 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Drill Operator, Rotary
2005-02-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-11-25 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Truck Driver
2003-11-25 Quartz, respirable, >1% Qtz 0.44 2.55 0.17 Drill Operator, Rotary Air
2003-04-30 Quartz, respirable, >1% Qtz 0.32 1.09 0.29 Backhoe Operator
2003-04-30 Nuisance dust, respirable, <1% Qtz 0.27 10 0.03 Front-end Loader Operator
2003-04-30 Nuisance dust, respirable, <1% Qtz 1.57 10 0.16 Crusher Oper/Worker
2003-04-30 Quartz, respirable, >1% Qtz 0.31 1.59 0.19 Truck Driver
2003-04-30 Nuisance dust, respirable, <1% Qtz 0.48 10 0.05 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.

Sedalia Quarry recorded 19.52 reportable injury cases per 100 full-time workers in 2016.

Injury rate, 2016
ⓘ 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.
19.52
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 2.17 and the all-US-mining average was 2.59 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 3.48 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
2016 * 19.52 0.00 0.000
2015 * 0.00 0.00 0.000
2013 * 0.00 0.00 0.000
2011 * 0.00 0.00 0.000
2010 * 0.00 0.00 0.000
2009 * 7.09 0.00 0.000
2008 * 0.00 0.00 0.000
2007 * 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. Fischer Quarries Llc 1997 to 2011
  2. Con-Agg Companies, LLC 2011 to 2026
  3. Martin Marietta Materials, Inc. 2026 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 7
2025 4
2024 4
2023 4
2022 5
2021 6
2020 7
2019 7
2018 9
2017 11
2016 12
2015 11
2014 12
2013 12
2012 12
2011 12
2010 12
2009 10
2008 9
2007 9
2006 11
2005 12
2004 10
2003 8
2002 10
2001 10
2000 10
Source: MSHA quarterly employment and production, updated weekly.

Sedalia Quarry sits in Pettis 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.
Pettis County, Missouri · Population 43,205
0.3%
Mining share of county employment
$60,232
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 4,839 0 0 0.0
2026 Q1 273 0 0 0.0
2025 Q4 2,911 0 0 0.0
2025 Q3 3,672 0 0 0.0
2025 Q2 2,655 0 0 0.0
2025 Q1 2,911 0 0 0.0
2024 Q4 1,924 0 0 0.0
2024 Q3 2,112 1 0 473.5
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,100 0 0 0.0
2024 Q1 2,338 0 0 0.0
2023 Q4 2,308 0 0 0.0
2023 Q3 2,787 0 0 0.0
2023 Q2 2,598 0 0 0.0
2023 Q1 3,276 0 0 0.0
2022 Q4 3,182 0 0 0.0
2022 Q3 3,996 0 0 0.0
2022 Q2 4,105 1 1 243.6
2022 Q1 3,150 0 0 0.0
2021 Q4 2,177 2 0 918.7
2021 Q3 3,653 1 1 273.7
2021 Q2 4,487 0 0 0.0
2021 Q1 4,299 1 0 232.6
2020 Q4 4,509 0 0 0.0
2020 Q3 4,422 1 0 226.1
2020 Q2 4,719 0 0 0.0
2020 Q1 4,864 3 0 616.8
2019 Q4 4,072 0 0 0.0
2019 Q3 4,385 0 0 0.0
2019 Q2 4,087 4 1 978.7
2019 Q1 3,156 0 0 0.0
2018 Q4 3,726 0 0 0.0
2018 Q3 4,834 3 2 620.6
2018 Q2 5,223 0 0 0.0
2018 Q1 4,389 0 0 0.0
2017 Q4 4,132 4 3 968.1
2017 Q3 4,279 2 0 467.4
2017 Q2 4,205 0 0 0.0
2017 Q1 3,930 0 0 0.0
2016 Q4 4,275 1 0 233.9
2016 Q3 4,584 2 1 436.3
2016 Q2 5,202 0 0 0.0
2016 Q1 6,434 1 0 155.4
2015 Q4 5,272 0 0 0.0
2015 Q3 6,330 0 0 0.0
2015 Q2 6,173 1 0 162.0
2015 Q1 4,869 0 0 0.0
2014 Q4 4,942 0 0 0.0
2014 Q3 5,560 1 0 179.9
2014 Q2 5,678 0 0 0.0
2014 Q1 3,264 0 0 0.0
2013 Q4 2,636 0 0 0.0
2013 Q3 6,593 0 0 0.0
2013 Q2 6,487 2 1 308.3
2013 Q1 4,932 2 2 405.5
2012 Q4 1,576 0 0 0.0
2012 Q3 5,102 3 1 588.0
2012 Q2 5,415 0 0 0.0
2012 Q1 7,027 2 0 284.6
2011 Q4 7,011 0 0 0.0
2011 Q3 8,345 0 0 0.0
2011 Q2 7,978 6 2 752.1
2011 Q1 7,964 0 0 0.0
2010 Q4 8,483 7 2 825.2
2010 Q3 13,512 14 6 1036.1
2010 Q2 8,889 0 0 0.0
2010 Q1 6,516 7 5 1074.3
2009 Q4 6,655 0 0 0.0
2009 Q3 8,494 3 0 353.2
2009 Q2 6,744 0 0 0.0
2009 Q1 6,326 0 0 0.0
2008 Q4 6,300 5 0 793.7
2008 Q3 6,180 2 0 323.6
2008 Q2 5,721 0 0 0.0
2008 Q1 5,795 0 0 0.0
2007 Q4 5,639 1 0 177.3
2007 Q3 6,342 0 0 0.0
2007 Q2 6,139 1 0 162.9
2007 Q1 6,246 0 0 0.0
2006 Q4 6,178 2 0 323.7
2006 Q3 6,937 3 1 432.5
2006 Q2 6,606 0 0 0.0
2006 Q1 6,640 0 0 0.0
2005 Q4 6,042 12 3 1986.1
2005 Q3 8,153 2 1 245.3
2005 Q2 7,509 0 0 0.0
2005 Q1 7,084 4 2 564.7
2004 Q4 6,469 0 0 0.0
2004 Q3 7,222 0 0 0.0
2004 Q2 6,659 3 0 450.5
2004 Q1 5,082 0 0 0.0
2003 Q4 7,022 1 0 142.4
2003 Q3 3,329 0 0 0.0
2003 Q2 3,849 0 0 0.0
2003 Q1 3,570 1 0 280.1
2002 Q4 7,555 0 0 0.0
2002 Q3 6,542 3 0 458.6
2002 Q2 7,825 0 0 0.0
2002 Q1 5,179 0 0 0.0
2001 Q4 5,982 0 0 0.0
2001 Q3 5,807 2 0 344.4
2001 Q2 6,944 0 0 0.0
2001 Q1 6,309 0 0 0.0
2000 Q4 5,751 0 0 0.0
2000 Q3 6,848 0 0 0.0
2000 Q2 5,530 0 0 0.0
2000 Q1 5,985 3 2 501.3
No fatalities recorded at this mine.

Reportable incidents

9 on file

2020 · 1 incident

May 7, 2020 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Con-Agg Companies, LLC · Contact with hot objects or substances

Tech was flushing a cooling system on a loader. When draining the coolant EE removed the lower radiator hose and splashed EE's right lower arm and right neck with hot coolant. This caused second degree burns to EE's right arm.

2017 · 1 incident

May 26, 2017 MO · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey SLIP OR FALL OF PERSON
Con-Agg Companies, LLC · Fall to the walkway or working surface

***6/14/17 - FIRST DATE OF MEDICAL TREATMENT*** Had a 50-pound bag on shoulder & a loading pole in the other hand, went to turn around, foot slipped on uneven ground, left foot went forward & fell backwards to the ground - hurt low back

2016 · 2 incidents

August 5, 2016 MO · Metal/Non-Metal miner, prospector, nec STEPPING OR KNEELING ON OBJECT
Con-Agg Companies, LLC · Struck against stationary object

miner was done operating the drill and when EE stepped down from the machine EE stepped on a thin piece of metal that pierced EE's left foot

May 10, 2016 MO · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
Con-Agg Companies, LLC · Struck by... (Not Elsewhere Classified)

Employee struck thumb on right hand with hammer while removing a speed reducer on a lime belt.

2009 · 1 incident

December 28, 2009 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Fischer Quarries Llc · Struck against stationary object

Employee was removing snow from tail pulley of non-moving conveyor. Upon completion he dragged his hand across telescoping take up receiving cut near his thumb. He then reported the injury. After discussion we decided that another employee should accompany him to the hospital to have it looked at. He received 7 stitches and was released to return to work the next day.

2004 · 1 incident

September 29, 2004 MO · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
Fischer Quarries Llc · Struck against a moving object

TRESPASSER DROVE INTO THE SECURED POSTED QUARRY. ACCORDING TO MO HIGHWAY PATROL, SHE WAS TRAVELING TOO FAST, LOST CONTROL ON A GRAVEL LANE, STRUCK SEVERAL LARGE ROCKS AND OVER TURNED SEVERAL TIMES. A NO TRESPASSING CHARGE WAS FILED ON HER. COMPANY WAS NOTIFIED AT 7:00 PM.

2000 · 1 incident

October 2, 2000 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Fischer Quarries Llc · Over-exertion in lifting objects

EE WAS UNLOADING AN EXPLOSIVE. TRAILER BENT DOWN TO PICK UP A BAG OF ANFO. FELT LOWER BACK STRAIN & HURT.

1998 · 1 incident

May 4, 1998 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Fischer Quarries Llc · Struck by flying object

EE WAS OPERATING AN FMC LINKBELT WITH HYDRAULIC ROCK BREAKER WITH FRONT WINDOW OPEN. PIECE OF ROCK [APPROX 1" SQUARE] STRUCK EE ABOVE RIGHT EYE ABOUT 2". EE RECEIVED ABOUT A 1.5" CUT & 6 STITC HES.

1997 · 1 incident

July 28, 1997 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Fischer Quarries Llc · Fall from machine

EMPLOYEE WAS STANDING ON BUCKET GREASING D-8 CAT. BUCKET BROKE AND EMPLOYEE FELL BACK LANDING ON HIS RIGHT SHOULDER. EMPLOYEE STATES HE HAS BRUISED SHOULDER.