Mining Incidents

Wright City Quarry: 71 MSHA citations Metal/Non-Metal

BMC Stone, LLC · Surface
Controlled by BMC Enterprises Inc
Wright City, Warren County, MO  ·  Active
MSHA Mine ID: 2302286

Wright City Quarry has $9K in proposed MSHA penalties and $604 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
2004–2007
Latest incident
Feb 2007
Compliance record
MSHA citations since 2003
71
citations
9
significant & substantial
$9,299
proposed penalties
$8,695
paid to date
94% of proposed penalties paid to date, a $604 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
55
inspections on record
712
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: 712 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Wright City Quarry has $9K in proposed MSHA penalties and $604 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$604
outstanding
68 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-03.
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.
12.7%
significant & substantial
5.6%
high negligence or reckless
12.7%
reasonably likely or greater
60.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 29.6% low, 64.8% moderate, 5.6% high, 0.0% reckless.
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: 2025-11-05
0%
of limit-tested samples over the exposure limit
36
samples
14
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg18
  • Quartz, respirable, >1% Qtz12
  • Nuisance dust, respirable, <1% Qtz6
Show the individual readings (36)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-11-05 Respirable dust, <.1mg 0 Truck Driver
2025-11-05 Quartz, respirable, >1% Qtz 0.45 2.13 0.21 Front-end Loader Operator
2025-11-05 Quartz, respirable, >1% Qtz 0.16 Front-end Loader Operator
2025-11-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-11-05 Quartz, respirable, >1% Qtz 0.15 Cleanup Man
2024-12-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-09-25 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Cleanup Man
2024-09-25 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-09-25 Respirable dust, <.1mg 0 Truck Driver
2024-09-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-05-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-05-16 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-05-16 Respirable dust, <.1mg 0 Truck Driver
2023-05-16 Quartz, respirable, >1% Qtz 0.14 Front-end Loader Operator
2022-04-28 Quartz, respirable, >1% Qtz 0.15 Crusher Oper/Worker
2022-04-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-09-01 Respirable dust, <.1mg 0 Truck Driver
2020-09-01 Respirable dust, <.1mg 0 Crusher Oper/Worker
2020-09-01 Nuisance dust, respirable, <1% Qtz 0.26 10 0.03 Front-end Loader Operator
2020-09-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-05 Quartz, respirable, >1% Qtz 0.16 1.12 0.14 Screen/Scalper Operator
2016-10-05 Quartz, respirable, >1% Qtz 0.13 1.17 0.11 Front-end Loader Operator
2015-04-28 Quartz, respirable, >1% Qtz 0.26 1.51 0.17 Front-end Loader Operator
2015-04-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-06-12 Nuisance dust, respirable, <1% Qtz 0.37 10 0.04 Cleanup Man
2013-06-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-06-12 Quartz, respirable, >1% Qtz 0.29 1.6 0.18 Complete Load-Haul-Dump
2013-06-12 Quartz, respirable, >1% Qtz 0.26 2.08 0.13 Crusher Oper/Worker
2008-05-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2008-05-21 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Complete Load-Haul-Dump
2007-04-04 Quartz, respirable, >1% Qtz 0.45 1.34 0.34 Front-end Loader Operator
2007-04-04 Nuisance dust, respirable, <1% Qtz 0.28 10 0.03 Utility Man
2004-01-29 Quartz, respirable, >1% Qtz 0.51 1.33 0.38 Laborer, Bullgang
2004-01-29 Nuisance dust, respirable, <1% Qtz 1.12 10 0.11 Crusher Oper/Worker
2004-01-29 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.

Wright City Quarry 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
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
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 * 0.00 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2019 * 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. Lafarge North America 2003 to 2010
  2. APAC-Missouri, Inc 2010 to 2014
  3. BMC Stone, LLC 2014 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 14
2025 13
2024 10
2023 9
2022 13
2021 8
2020 11
2019 10
2018 9
2017 8
2016 6
2015 8
2014 4
2013 4
2012 4
2011 4
2010 4
2008 9
2007 11
2006 6
2005 7
2004 2
2003 3
Source: MSHA quarterly employment and production, updated weekly.

Wright City Quarry sits in Warren County, Missouri, where the Census mining category is 0.0% 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.
Warren County, Missouri · Population 36,467
0.0%
Mining share of county employment
$77,989
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 5,519 3 1 543.6
2026 Q1 5,664 0 0 0.0
2025 Q4 6,204 4 2 644.7
2025 Q3 7,563 2 0 264.4
2025 Q2 7,730 0 0 0.0
2025 Q1 6,713 0 0 0.0
2024 Q4 6,652 3 0 451.0
2024 Q3 6,451 0 0 0.0
Show 79 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 6,677 0 0 0.0
2024 Q1 6,018 3 0 498.5
2023 Q4 5,267 0 0 0.0
2023 Q3 5,428 0 0 0.0
2023 Q2 5,622 6 1 1067.2
2023 Q1 5,453 0 0 0.0
2022 Q4 5,016 3 0 598.1
2022 Q3 5,263 0 0 0.0
2022 Q2 5,270 0 0 0.0
2022 Q1 4,790 0 0 0.0
2021 Q4 5,335 3 0 562.3
2021 Q3 5,582 0 0 0.0
2021 Q2 5,315 1 0 188.1
2021 Q1 4,287 1 0 233.3
2020 Q4 4,743 0 0 0.0
2020 Q3 5,183 0 0 0.0
2020 Q2 4,977 1 0 200.9
2020 Q1 4,506 1 0 221.9
2019 Q4 4,840 0 0 0.0
2019 Q3 5,263 2 0 380.0
2019 Q2 5,559 0 0 0.0
2019 Q1 5,020 0 0 0.0
2018 Q4 5,115 3 0 586.5
2018 Q3 5,130 0 0 0.0
2018 Q2 4,880 2 0 409.8
2018 Q1 3,962 0 0 0.0
2017 Q4 4,313 2 1 463.7
2017 Q3 4,977 0 0 0.0
2017 Q2 4,279 1 0 233.7
2017 Q1 3,367 0 0 0.0
2016 Q4 3,194 1 0 313.1
2016 Q3 3,232 0 0 0.0
2016 Q2 2,395 1 0 417.5
2016 Q1 2,367 0 0 0.0
2015 Q4 3,313 1 0 301.8
2015 Q3 2,064 0 0 0.0
2015 Q2 1,701 2 0 1175.8
2015 Q1 1,774 0 0 0.0
2014 Q4 821 2 0 2436.1
2014 Q3 1,728 1 0 578.7
2014 Q2 1,679 0 0 0.0
2014 Q1 1,637 1 1 610.9
2013 Q4 1,460 0 0 0.0
2013 Q3 1,911 0 0 0.0
2013 Q2 1,514 0 0 0.0
2013 Q1 970 1 0 1030.9
2012 Q4 1,490 0 0 0.0
2012 Q3 1,321 1 0 757.0
2012 Q2 1,599 0 0 0.0
2012 Q1 1,421 0 0 0.0
2011 Q4 1,475 1 0 678.0
2011 Q3 1,996 0 0 0.0
2011 Q2 1,937 1 0 516.3
2011 Q1 1,110 0 0 0.0
2010 Q4 1,437 0 0 0.0
2010 Q3 2,809 0 0 0.0
2010 Q2 2,248 1 0 444.8
2010 Q1 621 0 0 0.0
2008 Q3 4,788 0 0 0.0
2008 Q2 4,757 0 0 0.0
2008 Q1 4,053 0 0 0.0
2007 Q4 4,033 1 0 248.0
2007 Q3 5,997 0 0 0.0
2007 Q2 6,320 0 0 0.0
2007 Q1 4,601 0 0 0.0
2006 Q4 3,780 1 0 264.6
2006 Q3 3,958 0 0 0.0
2006 Q2 4,357 0 0 0.0
2006 Q1 5,262 0 0 0.0
2005 Q4 5,458 0 0 0.0
2005 Q3 5,829 1 0 171.6
2005 Q2 4,171 0 0 0.0
2005 Q1 3,072 0 0 0.0
2004 Q4 1,158 0 0 0.0
2004 Q3 1,200 0 0 0.0
2004 Q2 1,482 0 0 0.0
2004 Q1 1,252 1 1 798.7
2003 Q4 1,627 0 0 0.0
2003 Q3 1,305 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2007 · 2 incidents

February 21, 2007 MO · Metal/Non-Metal driller, highwall operator, highwall drill operator MACHINERY
Lafarge North America · Struck against stationary object

Employee was lowering boom on drill. Boom caught edge of his hardhat and flipped it off. Employee bent over to pick it up and when he straighted, he hit his head on the boom. Laceration requiring sutures.

February 16, 2007 MO · Metal/Non-Metal drill operator STEPPING OR KNEELING ON OBJECT
Lafarge North America · Struck against stationary object

Employee jumped down from air track drill and his right foot landed on a rock, causing one of the toes to be overextended. Bruised & sore, but no broken bones or cuts.

2006 · 2 incidents

February 23, 2006 MO · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Lafarge North America · Struck by... (Not Elsewhere Classified)

Employee was cutting a piece of plastic pipe and cut his leg. 5 stitches.

2005 · 1 incident

2004 · 1 incident

March 16, 2004 MO · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Lafarge North America · Fall from machine

Employee was inspecting the top of the impact crusher. as he was descending to another point he slipped from the wet drive belt guard and fell to the ground on a rock.