Superior 720 Crusher has $7K in proposed MSHA penalties and $0 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
2016
Latest incident
Jun 2016
Compliance record
MSHA citations since 2005
41
citations
13
significant & substantial
$6,968
proposed penalties
$6,968
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 249 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Superior 720 Crusher has $7K in proposed MSHA penalties and $0 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
41 assessments are final orders; 1 contested dockets.
Of $1K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2026-04-20.
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.
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.
9citations taken to the federal commission · 22% of citations on record
Stood as issued
9 · 100%
0%
Penalty reduction in decided contests
$1K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2017-10-03.
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.
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: 2026-04-15
3
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg3
Show the individual readings (3)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-04-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-06-22
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2005-06-22
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
2
2025
3
2024
3
2022
0
2021
0
2020
0
2019
0
2018
0
2017
1
2016
0
2015
0
2014
1
2013
0
2012
0
2011
0
2010
0
2009
0
2008
1
2007
0
2006
1
2005
1
2004
1
2003
1
Source: MSHA quarterly employment and production, updated weekly.
Superior 720 Crusher sits in Lyon County, Minnesota, 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.
Lyon County, Minnesota · Population 25,498
0.1%
Mining share of county employment
$72,761
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
1,732
9
4
5196.3
2026 Q1
0
0
0
2025 Q4
899
0
0
0.0
2025 Q3
768
0
0
0.0
2025 Q2
919
0
0
0.0
2025 Q1
208
0
0
0.0
2024 Q4
1,008
0
0
0.0
2024 Q3
1,320
0
0
0.0
Show 75 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
648
0
0
0.0
2022 Q2
0
0
0
2022 Q1
0
0
0
2021 Q4
0
0
0
2021 Q3
0
0
0
2021 Q2
93
0
0
0.0
2021 Q1
0
0
0
2020 Q4
0
0
0
2020 Q3
0
0
0
2020 Q2
0
0
0
2020 Q1
0
0
0
2019 Q4
0
0
0
2019 Q3
0
1
0
2019 Q2
0
0
0
2019 Q1
0
0
0
2018 Q4
0
0
0
2018 Q3
83
0
0
0.0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
2017 Q3
200
16
3
80000.0
2017 Q2
0
0
0
2017 Q1
0
0
0
2016 Q4
0
0
0
2016 Q3
0
0
0
2016 Q2
0
0
0
2016 Q1
0
0
0
2015 Q4
0
0
0
2015 Q3
0
0
0
2015 Q2
0
0
0
2015 Q1
0
0
0
2014 Q4
56
7
4
125000.0
2014 Q3
36
0
0
0.0
2014 Q2
0
0
0
2014 Q1
0
0
0
2013 Q4
0
0
0
2013 Q3
154
5
2
32467.5
2013 Q2
0
0
0
2013 Q1
0
0
0
2012 Q4
0
0
0
2012 Q3
0
0
0
2012 Q2
0
0
0
2012 Q1
0
0
0
2011 Q4
0
0
0
2011 Q3
13
1
0
76923.1
2011 Q1
0
0
0
2010 Q4
0
0
0
2010 Q3
0
0
0
2010 Q2
0
0
0
2009 Q4
0
0
0
2009 Q3
0
0
0
2009 Q2
115
0
0
0.0
2009 Q1
0
0
0
2008 Q4
17
0
0
0.0
2008 Q3
37
0
0
0.0
2008 Q2
0
1
0
2008 Q1
32
0
0
0.0
2007 Q4
0
0
0
2007 Q3
0
0
0
2007 Q2
0
0
0
2007 Q1
0
0
0
2006 Q4
16
0
0
0.0
2006 Q3
62
0
0
0.0
2006 Q2
54
0
0
0.0
2006 Q1
0
0
0
2005 Q4
36
0
0
0.0
2005 Q3
10
0
0
0.0
2005 Q2
54
1
0
18518.5
2005 Q1
14
0
0
0.0
2004 Q4
22
0
0
0.0
2004 Q3
18
0
0
0.0
2004 Q2
36
0
0
0.0
2004 Q1
55
0
0
0.0
2003 Q4
11
0
0
0.0
2003 Q3
54
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2016 · 1 incident
June 27, 2016MN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
Working on 240D Excavator track pin when shrapnel punctured left leg. Employee was hammering a pin in to an excavator track when a metal shard projected through overalls and jeans, leaving a puncture wound of about 5mm in left leg.