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Sturgeon Quarry: 77 MSHA citations Metal/Non-Metal

Sturgeon, Boone County, MO  ·  Abandoned
MSHA Mine ID: 2302099

Sturgeon Quarry has $13K in proposed MSHA penalties and $0 outstanding across 11 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
15
Years on record
1999–2019
Latest incident
Aug 2019
Compliance record
MSHA citations since 2001
77
citations
20
significant & substantial
$12,813
proposed penalties
$12,122
paid to date
95% of proposed penalties paid to date, a $691 gap.
Source: MSHA violations data, updated weekly.
See Martin Marietta Materials, Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
62
inspections on record
865
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: 865 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Sturgeon Quarry has $13K in proposed MSHA penalties and $0 outstanding across 11 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
77 assessments are final orders; 11 contested dockets.
Of $5K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2022-12-20.
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.
26.0%
significant & substantial
6.5%
high negligence or reckless
26.0%
reasonably likely or greater
70.1%
permanently disabling or fatal if injury occurs
Negligence coding: 1.3% none, 22.1% low, 70.1% moderate, 6.5% 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.
26 citations taken to the federal commission · 34% of citations on record
  • Settled 21 · 81%
  • Stood as issued 1 · 4%
  • Vacated or withdrawn 4 · 15%
60%
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 10 decided S&S contests · industry: 79%
21%
Penalty reduction in decided contests
$5K proposed, $4K 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 2017-09-12.
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 2011-1123M Settlement Lesnick 2011 $2K → $1K
CENT 2017-0494 Settlement Simonton 2018 $1K → $988
CENT 2016-0285 Settlement McCarthy 2016 $824 → $562
CENT 2015-0270 Settlement Paez 2015 $362 → $300
CENT 2013-480M Settlement Lesnick 2013 $362 → $200
CENT 2015-0218 Settlement Miller 2015 $270 → $270
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: 2020-04-15, 6 years ago
0%
of limit-tested samples over the exposure limit
40
samples
37
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz25
  • Nuisance dust, respirable, <1% Qtz12
  • Respirable dust, <.1mg3
Show the individual readings (40)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-04-15 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Front-end Loader Operator
2017-06-01 Quartz, respirable, >1% Qtz 0.72 1.13 0.64 Truck Driver
2017-06-01 Quartz, respirable, >1% Qtz 0.32 1.61 0.20 Truck Driver
2017-06-01 Quartz, respirable, >1% Qtz 0.47 1.14 0.41 Truck Driver
2017-06-01 Quartz, respirable, >1% Qtz 0.53 2.2 0.24 Truck Driver
2017-06-01 Nuisance dust, respirable, <1% Qtz 0.25 10 0.03 Front-end Loader Operator
2014-03-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-03-26 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Crusher Oper/Worker
2014-03-26 Quartz, respirable, >1% Qtz 0.58 1 0.58 Truck Driver
2014-03-26 Quartz, respirable, >1% Qtz 0.17 1.58 0.11 Front-end Loader Operator
2014-03-26 Quartz, respirable, >1% Qtz 0.7 1.13 0.62 Truck Driver
2012-01-24 Quartz, respirable, >1% Qtz 0.26 1.32 0.20 Truck Driver
2012-01-24 Quartz, respirable, >1% Qtz 0.2 1.47 0.14 Truck Driver
2012-01-24 Quartz, respirable, >1% Qtz 0.22 0.98 0.22 Truck Driver
2012-01-24 Nuisance dust, respirable, <1% Qtz 1.05 10 0.11 Truck Driver
2010-03-31 Quartz, respirable, >1% Qtz 0.36 1.23 0.29 Front-end Loader Operator
2010-03-31 Quartz, respirable, >1% Qtz 0.7 1.23 0.57 Truck Driver
2010-03-31 Quartz, respirable, >1% Qtz 0.43 1.23 0.35 Truck Driver
2010-03-31 Quartz, respirable, >1% Qtz 0.33 1.48 0.22 Truck Driver
2010-03-31 Quartz, respirable, >1% Qtz 0.53 2.33 0.23 Crusher Oper/Worker
2009-04-15 Nuisance dust, respirable, <1% Qtz 0.26 10 0.03 Truck Driver
2009-04-15 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Truck Driver
2009-04-15 Quartz, respirable, >1% Qtz 0.3 1.64 0.18 Front-end Loader Operator
2009-04-15 Nuisance dust, respirable, <1% Qtz 0.77 10 0.08 Truck Driver
2007-08-01 Quartz, respirable, >1% Qtz 0.49 1.68 0.29 Truck Driver
2007-08-01 Quartz, respirable, >1% Qtz 0.33 1.2 0.28 Truck Driver
2007-08-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-10-28 Nuisance dust, respirable, <1% Qtz 0.18 10 0.02 Truck Driver
2004-10-28 Quartz, respirable, >1% Qtz 0.36 1.64 0.22 Crusher Oper/Worker
2004-10-28 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Truck Driver
2002-07-24 Nuisance dust, respirable, <1% Qtz 0.21 10 0.02 Crusher Oper/Worker
2002-07-24 Quartz, respirable, >1% Qtz 0.25 1.01 0.25 Truck Driver
2002-07-24 Quartz, respirable, >1% Qtz 0.28 1.3 0.22 Truck Driver
2002-07-24 Quartz, respirable, >1% Qtz 0.63 1.55 0.41 Front-end Loader Operator
2001-04-19 Quartz, respirable, >1% Qtz 0.14 1.16 0.12 Drill Operator, Rotary
2001-04-19 Nuisance dust, respirable, <1% Qtz 0.19 10 0.02 Truck Driver
2001-04-19 Quartz, respirable, >1% Qtz 0.37 2.52 0.15 Truck Driver
2001-04-19 Quartz, respirable, >1% Qtz 0.16 1.53 0.10 Front-end Loader Operator
2001-04-19 Nuisance dust, respirable, <1% Qtz 1.33 10 0.13 Crusher Oper/Worker
2001-04-19 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.

Sturgeon Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2018.

Injury rate, 2018
ⓘ 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 1.95 and the all-US-mining average was 2.33 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.63 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
2018 * 0.00 0.00 0.000
2017 * 6.32 0.00 0.000
2016 * 11.14 0.00 0.000
2015 * 0.00 0.00 0.000
2014 * 6.81 6.81 0.000
2013 * 0.00 0.00 0.000
2012 * 0.00 0.00 0.000
2010 * 9.21 9.21 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. Mid-Missouri Limestone, Inc 1993 to 2018
  2. Con-Agg Companies, LLC 2018 to 2026
  3. Martin Marietta Materials, Inc. 2026 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2025 1
2024 3
2023 4
2022 2
2021 3
2020 4
2019 5
2018 7
2017 13
2016 14
2015 13
2014 13
2013 13
2012 11
2011 6
2010 11
2009 10
2008 9
2007 9
2006 11
2005 11
2004 10
2003 7
2002 7
2001 11
2000 12
Source: MSHA quarterly employment and production, updated weekly.

Sturgeon Quarry sits in Boone 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.
Boone County, Missouri · Population 185,874
0.1%
Mining share of county employment
$69,913
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
2025 Q1 269 0 0 0.0
2024 Q4 981 0 0 0.0
2024 Q3 1,184 0 0 0.0
2024 Q2 419 0 0 0.0
2024 Q1 3,756 0 0 0.0
2023 Q4 3,983 0 0 0.0
2023 Q3 1,775 0 0 0.0
2023 Q2 2,167 0 0 0.0
Show 93 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q1 3,530 0 0 0.0
2022 Q4 1,340 0 0 0.0
2022 Q3 1,247 0 0 0.0
2022 Q2 1,348 0 0 0.0
2022 Q1 1,247 0 0 0.0
2021 Q4 1,184 0 0 0.0
2021 Q3 1,256 0 0 0.0
2021 Q2 1,232 0 0 0.0
2021 Q1 2,400 0 0 0.0
2020 Q4 6,386 0 0 0.0
2020 Q3 2,163 0 0 0.0
2020 Q2 1,209 0 0 0.0
2020 Q1 4,261 1 0 234.7
2019 Q4 4,212 0 0 0.0
2019 Q3 2,588 0 0 0.0
2019 Q2 4,650 1 0 215.1
2019 Q1 3,238 2 0 617.7
2018 Q4 3,865 0 0 0.0
2018 Q3 5,585 0 0 0.0
2018 Q2 5,908 2 0 338.5
2018 Q1 4,895 0 0 0.0
2017 Q4 7,775 7 4 900.3
2017 Q3 7,923 0 0 0.0
2017 Q2 7,091 8 2 1128.2
2017 Q1 8,863 0 0 0.0
2016 Q4 9,409 0 0 0.0
2016 Q3 8,495 4 2 470.9
2016 Q2 9,335 0 0 0.0
2016 Q1 8,662 3 2 346.3
2015 Q4 8,311 0 0 0.0
2015 Q3 6,827 4 1 585.9
2015 Q2 7,117 0 0 0.0
2015 Q1 7,106 0 0 0.0
2014 Q4 6,885 3 2 435.7
2014 Q3 8,118 0 0 0.0
2014 Q2 7,763 0 0 0.0
2014 Q1 6,592 1 0 151.7
2013 Q4 7,060 0 0 0.0
2013 Q3 9,572 0 0 0.0
2013 Q2 6,284 0 0 0.0
2013 Q1 5,332 2 0 375.1
2012 Q4 6,999 0 0 0.0
2012 Q3 7,050 0 0 0.0
2012 Q2 5,072 0 0 0.0
2012 Q1 4,197 4 0 953.1
2011 Q4 999 0 0 0.0
2011 Q3 3,834 0 0 0.0
2011 Q2 5,130 3 1 584.8
2011 Q1 958 0 0 0.0
2010 Q4 5,477 2 0 365.2
2010 Q3 7,376 0 0 0.0
2010 Q2 3,786 0 0 0.0
2010 Q1 5,082 4 2 787.1
2009 Q4 4,603 0 0 0.0
2009 Q3 4,022 0 0 0.0
2009 Q2 5,539 1 0 180.5
2009 Q1 5,118 0 0 0.0
2008 Q4 6,525 3 0 459.8
2008 Q3 7,026 0 0 0.0
2008 Q2 4,062 0 0 0.0
2008 Q1 1,985 4 1 2015.1
2007 Q4 2,973 0 0 0.0
2007 Q3 5,626 4 1 711.0
2007 Q2 4,388 0 0 0.0
2007 Q1 5,072 0 0 0.0
2006 Q4 6,012 2 0 332.7
2006 Q3 6,353 0 0 0.0
2006 Q2 6,558 0 0 0.0
2006 Q1 4,911 0 0 0.0
2005 Q4 5,488 0 0 0.0
2005 Q3 9,371 0 0 0.0
2005 Q2 6,541 0 0 0.0
2005 Q1 5,957 0 0 0.0
2004 Q4 5,295 2 0 377.7
2004 Q3 5,243 0 0 0.0
2004 Q2 5,979 0 0 0.0
2004 Q1 5,193 1 1 192.6
2003 Q4 4,599 0 0 0.0
2003 Q3 3,892 0 0 0.0
2003 Q2 5,274 0 0 0.0
2003 Q1 2,138 0 0 0.0
2002 Q4 715 0 0 0.0
2002 Q3 5,505 0 0 0.0
2002 Q2 5,227 0 0 0.0
2002 Q1 5,230 0 0 0.0
2001 Q4 7,656 0 0 0.0
2001 Q3 4,322 0 0 0.0
2001 Q2 7,051 7 1 992.8
2001 Q1 6,546 0 0 0.0
2000 Q4 6,561 0 0 0.0
2000 Q3 7,295 0 0 0.0
2000 Q2 10,545 0 0 0.0
2000 Q1 7,064 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

15 on file

2019 · 1 incident

August 9, 2019 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Con-Agg Companies, LLC · Fall from machine

OSHA Shop Employee had just completed an on site repair on the Komatsu PC 600 Excavator and was doing EE's final inspection of the area making sure EE had all of EE's parts, tools accounted for and picked up. While walking back to the ladder access point EE stepped off of the 18 inch wide factory installed walking surface and fell 65 inches, breaking EE's femoral head, left hip

2017 · 1 incident

May 26, 2017 MO · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker SLIP OR FALL OF PERSON
Mid-Missouri Limestone, Inc · Fall from machine

Employee tried to access door on crusher without proper fall protection, in an area requiring fall protection. Employee fell and injured right hand.

2016 · 2 incidents

July 19, 2016 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mid-Missouri Limestone, Inc · Caught in, under or between a moving and a stationary object

Lid on WA-500-6 battery box impacted L hand of employee resulting in contusion and abrasion

June 15, 2016 MO · Metal/Non-Metal refuse truck driver, backfill truck driver, stock pile truck driver DISORDERS (PHYSICAL AGENTS)
Mid-Missouri Limestone, Inc · Contact with heat

Heat exhaustion, or symptoms of, related to excessive weather heat event.

2014 · 1 incident

June 5, 2014 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Mid-Missouri Limestone, Inc · Unclassified, insufficient data

Employee altercation - Altercation is being investigated. No witnesses to initiation of altercation. Independent investigator has been hired by Insurance Carrier to review and assist. To my current knowledge Boone County Sheriffs Department is investigating as well.

2010 · 1 incident

September 21, 2010 MO · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
Mid-Missouri Limestone, Inc · Fall to the walkway or working surface

Employee slipped while installing work pump hose. Impacted rib cage on ground and broke a left rib

2006 · 3 incidents

February 28, 2006 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Mid-Missouri Limestone, Inc · Over-exertion (Not Elsewhere Classified)

While changing screens, employee felt a pop/pinch in his neck.

2005 · 1 incident

August 10, 2005 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Mid-Missouri Limestone, Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS BACKING UP DUMP TRUCK AND FELT PAIN IN RIGHT KNEE. CAUSE OF PAIN UNKNOWN.

2001 · 2 incidents

January 19, 2001 MO · Metal/Non-Metal truck driver HANDTOOLS (NONPOWERED)
Mid-Missouri Limestone, Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE HAD PREVIOUS FRACTURE IN LEFT ARM. EMPLOYEE HAD STOPPED SEEING HIS DOCTOR AND HAD NOT RE-SPLINTED AS REQUESTED BY HIS DOCTOR. EMPLOYEE DID NOT INFORM EMPLOYEE THAT HIS ARM WAS NOT HEA LED. EMPLOYEE STRUCK A LARGE ROCK WHILE SHOVELING AND RE-FRACTURED LEFT FOREARM.

January 15, 2001 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Mid-Missouri Limestone, Inc · Struck by flying object

EMPLOYEE CLAIMS THAT AS HE CLOSED HIS LOADER DOOR, A PIECE OF METAL FLEW INTO HIS EYE. EMPLOYEE DID NOT REPORT INJURY UNTIL AFTER HE HAD WENT TO THE DOCTOR.

2000 · 2 incidents

July 21, 2000 MO · Metal/Non-Metal miner, nec SLIP OR FALL OF PERSON
Mid-Missouri Limestone, Inc · Over-exertion (Not Elsewhere Classified)

STEPPED ON SMALL STONE, KNEE GAVE OUT. THIS WAS AN AGGRAVATION OF PRE-EXISTING CONDITION. THIS DID NOT CAUSE THE CONDITION.

1999 · 1 incident

September 24, 1999 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Mid-Missouri Limestone, Inc · Over-exertion in wielding or throwing objects

STRAINED BACK WHEN SWINGING SLEDGE HAMMER.