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Superior Plant: 114 MSHA citations Metal/Non-Metal

Controlled by Charles E Stringer
Cass City, Tuscola County, MI  ·  Intermittent
MSHA Mine ID: 2003275

Superior Plant has $25K in proposed MSHA penalties and $151 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2023
Latest incident
Feb 2023
Compliance record
MSHA citations since 2004
114
citations
33
significant & substantial
$24,754
proposed penalties
$23,630
paid to date
95% of proposed penalties paid to date, a $1,124 gap.
Source: MSHA violations data, updated weekly.
See Thumb Aggregate Sales LLC's full MSHA compliance history →
Inspection activity
MSHA inspections since 2003
37
inspections on record
497
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: 497 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: 2016-05-04.
On record since 2016.
Source: MSHA imminent-danger order records, updated weekly.

Superior Plant has $25K in proposed MSHA penalties and $151 outstanding across 1 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.
$25K
proposed penalties
$24K
current assessed
$24K
paid to date
$151
outstanding
113 assessments are final orders; 1 contested dockets.
Of $7K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2026-03-11.
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.
29.2%
significant & substantial
3.5%
high negligence or reckless
29.2%
reasonably likely or greater
40.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 15.0% low, 81.4% moderate, 3.5% 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.
10 citations taken to the federal commission · 9% of citations on record
  • Settled 10 · 100%
100%
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 5 decided S&S contests · industry: 79%
15%
Penalty reduction in decided contests
$7K proposed, $6K 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 2016-07-14.
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
LAKE 2016-0372 Settlement Lesnick 2017 $7K → $6K
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: 2021-06-10, 5 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2021-06-10 Quartz, respirable, >1% Qtz 0.14 Washer Operator
2016-05-04 Quartz, respirable, >1% Qtz 0.13 0.91 0.14 Washer Operator
2010-11-17 Unlisted Particulate, respirable, <1% Qtz 0.12 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.
Ownership history
  1. Thumb Aggregates Inc 2003 to 2016
  2. Thumb Aggregate Sales LLC 2016 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 1
2023 2
2022 1
2021 2
2020 2
2019 1
2018 2
2017 2
2016 2
2015 2
2014 2
2013 3
2012 4
2011 4
2010 4
2009 3
2008 3
2007 3
2006 3
2005 2
2004 2
2003 2
Source: MSHA quarterly employment and production, updated weekly.

Superior Plant sits in Tuscola County, Michigan, where the Census mining category is 0.2% 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.
Tuscola County, Michigan · Population 53,071
0.2%
Mining share of county employment
$62,847
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 345 0 0 0.0
2026 Q1 245 1 0 4081.6
2025 Q4 152 0 0 0.0
2025 Q3 556 0 0 0.0
2025 Q2 795 0 0 0.0
2025 Q1 245 0 0 0.0
2024 Q4 488 6 1 12295.1
2024 Q3 555 0 0 0.0
Show 84 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 759 0 0 0.0
2024 Q1 180 0 0 0.0
2023 Q4 422 4 0 9478.7
2023 Q3 1,080 0 0 0.0
2023 Q2 322 0 0 0.0
2023 Q1 172 1 0 5814.0
2022 Q4 410 2 1 4878.0
2022 Q3 695 13 9 18705.0
2022 Q2 765 0 0 0.0
2022 Q1 0 0 0
2021 Q4 350 0 0 0.0
2021 Q3 924 0 0 0.0
2021 Q2 845 7 1 8284.0
2021 Q1 50 0 0 0.0
2020 Q4 865 0 0 0.0
2020 Q3 720 0 0 0.0
2020 Q2 756 7 1 9259.3
2020 Q1 25 0 0 0.0
2019 Q4 365 0 0 0.0
2019 Q3 759 4 0 5270.1
2019 Q2 720 5 3 6944.4
2019 Q1 0 0 0
2018 Q4 395 0 0 0.0
2018 Q3 605 0 0 0.0
2018 Q2 1,425 0 0 0.0
2018 Q1 65 0 0 0.0
2017 Q4 445 7 1 15730.3
2017 Q3 982 0 0 0.0
2017 Q2 1,110 0 0 0.0
2017 Q1 0 0 0
2016 Q4 680 7 3 10294.1
2016 Q3 486 0 0 0.0
2016 Q2 955 11 5 11518.3
2016 Q1 0 0 0
2015 Q4 704 0 0 0.0
2015 Q3 991 12 4 12109.0
2015 Q2 840 0 0 0.0
2015 Q1 95 0 0 0.0
2014 Q4 697 0 0 0.0
2014 Q3 1,800 0 0 0.0
2014 Q2 1,211 2 1 1651.5
2014 Q1 0 0 0
2013 Q4 1,245 0 0 0.0
2013 Q3 1,614 11 1 6815.4
2013 Q2 1,080 0 0 0.0
2013 Q1 64 0 0 0.0
2012 Q4 1,089 0 0 0.0
2012 Q3 1,575 0 0 0.0
2012 Q2 1,974 0 0 0.0
2012 Q1 449 0 0 0.0
2011 Q4 1,395 1 0 716.8
2011 Q3 2,106 0 0 0.0
2011 Q2 1,845 0 0 0.0
2011 Q1 89 0 0 0.0
2010 Q4 922 3 1 3253.8
2010 Q3 1,497 0 0 0.0
2010 Q2 1,542 0 0 0.0
2010 Q1 76 0 0 0.0
2009 Q4 807 3 1 3717.5
2009 Q3 1,621 5 0 3084.5
2009 Q2 1,523 0 0 0.0
2009 Q1 161 0 0 0.0
2008 Q4 1,442 0 0 0.0
2008 Q3 1,441 0 0 0.0
2008 Q2 1,441 0 0 0.0
2008 Q1 360 0 0 0.0
2007 Q4 1,121 0 0 0.0
2007 Q3 1,445 0 0 0.0
2007 Q2 1,440 0 0 0.0
2007 Q1 1,046 0 0 0.0
2006 Q4 1,440 0 0 0.0
2006 Q3 1,440 0 0 0.0
2006 Q2 1,440 0 0 0.0
2006 Q1 480 0 0 0.0
2005 Q4 1,440 0 0 0.0
2005 Q3 1,440 0 0 0.0
2005 Q2 1,440 0 0 0.0
2005 Q1 0 0 0
2004 Q4 720 0 0 0.0
2004 Q3 320 0 0 0.0
2004 Q2 320 2 0 6250.0
2004 Q1 0 0 0
2003 Q4 200 0 0 0.0
2003 Q3 485 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2023 · 1 incident

February 13, 2023 MI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Thumb Aggregate Sales LLC · Caught in, under or between a moving and a stationary object

Mine Operator locked. The bottom of the conveyor, went underneath, and the conveyor tipped