Mining Incidents

S & S QUARRIES: 37 MSHA citations Metal/Non-Metal

MC Materials, LLC · Surface
Controlled by BMC Enterprises Inc
West Plains, Mo., Howell County, MO  ·  Abandoned
MSHA Mine ID: 2302049

S & S QUARRIES has $12K in proposed MSHA penalties and $133 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2024
Latest incident
Nov 2024
Compliance record
MSHA citations since 2006
37
citations
4
significant & substantial
$12,082
proposed penalties
$4,797
paid to date
40% of proposed penalties paid to date, a $7,285 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
31
inspections on record
406
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: 406 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

S & S QUARRIES has $12K in proposed MSHA penalties and $133 outstanding across 2 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.
$12K
proposed penalties
$5K
current assessed
$5K
paid to date
$133
outstanding
37 assessments are final orders; 2 contested dockets.
Of $8K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2026-03-04.
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.
10.8%
significant & substantial
16.2%
high negligence or reckless
10.8%
reasonably likely or greater
45.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 8.1% low, 75.7% moderate, 16.2% 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.
4 citations taken to the federal commission · 11% of citations on record
  • Settled 4 · 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 3 decided S&S contests · industry: 79%
88%
Penalty reduction in decided contests
$8K proposed, $1K 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 2022-04-03.
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 2011-310M Settlement Lesnick 2011 $8K → $882
CENT 2022-0119 Settlement 2022 $133 → $133
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: 2025-01-29
0%
of limit-tested samples over the exposure limit
15
samples
7
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz7
  • Respirable dust, <.1mg7
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-01-29 Respirable dust, <.1mg 0 Truck Driver
2025-01-29 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2024-05-29 Quartz, respirable, >1% Qtz 0.14 Rotary Bucket Ex. Operator
2024-05-29 Quartz, respirable, >1% Qtz 0.38 0.99 0.38 Front-end Loader Operator
2014-10-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-10-23 Nuisance dust, respirable, <1% Qtz 0.5 10 0.05 Crusher Oper/Worker
2010-09-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-09-03 Quartz, respirable, >1% Qtz 0.48 3.05 0.16 Crusher Oper/Worker
2009-06-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-06-11 Respirable dust, <.1mg 0 Supervisor, Co. Official
2007-11-20 Quartz, respirable, >1% Qtz 1.52 2.71 0.56 Crusher Oper/Worker
2007-11-20 Quartz, respirable, >1% Qtz 0.36 2.14 0.17 Front-end Loader Operator
2007-04-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-07-25 Quartz, respirable, >1% Qtz 0.27 0.48 0.56 Front-end Loader Operator
2006-07-25 Quartz, respirable, >1% Qtz 0.94 3.29 0.29 Crusher Oper/Worker
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.
Ownership history
  1. S & S Quarries Inc 1991 to 2021
  2. MC Materials, LLC 2021 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 3
2024 7
2023 7
2022 5
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 2
2014 2
2013 3
2012 2
2011 2
2010 2
2009 2
2008 3
2007 2
2006 4
Source: MSHA quarterly employment and production, updated weekly.

S & S QUARRIES sits in Howell County, Missouri, where the Census mining category is 0.4% 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.
Howell County, Missouri · Population 40,168
0.4%
Mining share of county employment
$49,814
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 Q1 1 1 0 1000000.0
2025 Q4 1 0 0 0.0
2025 Q3 0 0 0
2025 Q2 878 1 0 1139.0
2025 Q1 1,966 1 0 508.6
2024 Q4 3,193 0 0 0.0
2024 Q3 2,605 0 0 0.0
2024 Q2 2,403 1 0 416.1
Show 70 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 1,906 2 0 1049.3
2023 Q4 1,927 0 0 0.0
2023 Q3 1,687 0 0 0.0
2023 Q2 2,002 0 0 0.0
2023 Q1 1,768 0 0 0.0
2022 Q4 1,995 0 0 0.0
2022 Q3 1,993 0 0 0.0
2022 Q2 2,278 0 0 0.0
2022 Q1 440 2 1 4545.5
2021 Q4 200 0 0 0.0
2021 Q3 280 0 0 0.0
2021 Q2 260 0 0 0.0
2021 Q1 240 0 0 0.0
2020 Q3 250 0 0 0.0
2020 Q2 240 0 0 0.0
2020 Q1 270 0 0 0.0
2019 Q4 230 0 0 0.0
2019 Q3 250 0 0 0.0
2019 Q2 295 0 0 0.0
2019 Q1 280 0 0 0.0
2018 Q4 150 1 0 6666.7
2018 Q3 280 0 0 0.0
2018 Q2 300 0 0 0.0
2018 Q1 200 0 0 0.0
2017 Q4 230 0 0 0.0
2017 Q3 240 0 0 0.0
2017 Q2 295 0 0 0.0
2016 Q4 165 0 0 0.0
2016 Q3 0 0 0
2016 Q2 212 0 0 0.0
2016 Q1 290 0 0 0.0
2015 Q4 170 1 0 5882.4
2015 Q3 200 0 0 0.0
2015 Q2 206 0 0 0.0
2015 Q1 190 0 0 0.0
2014 Q4 280 3 0 10714.3
2014 Q3 220 0 0 0.0
2014 Q2 200 1 0 5000.0
2014 Q1 210 0 0 0.0
2013 Q4 300 0 0 0.0
2013 Q3 445 0 0 0.0
2013 Q2 506 0 0 0.0
2013 Q1 480 2 0 4166.7
2012 Q4 320 0 0 0.0
2012 Q3 220 0 0 0.0
2012 Q2 240 0 0 0.0
2012 Q1 200 0 0 0.0
2011 Q4 300 1 0 3333.3
2011 Q3 0 0 0
2011 Q2 320 0 0 0.0
2011 Q1 220 0 0 0.0
2010 Q4 280 3 0 10714.3
2010 Q3 300 0 0 0.0
2010 Q2 340 3 0 8823.5
2010 Q1 300 0 0 0.0
2009 Q4 200 0 0 0.0
2009 Q3 200 0 0 0.0
2009 Q2 300 8 3 26666.7
2009 Q1 250 0 0 0.0
2008 Q4 500 0 0 0.0
2008 Q3 800 1 0 1250.0
2008 Q2 900 0 0 0.0
2008 Q1 200 0 0 0.0
2007 Q4 360 0 0 0.0
2007 Q3 240 0 0 0.0
2007 Q2 900 0 0 0.0
2007 Q1 240 0 0 0.0
2006 Q4 1,350 0 0 0.0
2006 Q3 1,260 2 0 1587.3
2006 Q2 197 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2024 · 2 incidents

November 6, 2024 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
MC Materials, LLC · Struck by flying object

Using improper tool. Employee was using a sledgehammer and a king pin to remove a pin in the conveyor when a sliver of the king pin broke off cutting their arm and embedding in their arm.

July 29, 2024 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
MC Materials, LLC · Struck by... (Not Elsewhere Classified)

No gloves and lack of communication while changing screens and clamp bar caught EE's finger and took a gash out of EE's left ring finger.