Superior has $37K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
4
Years on record
1990–2017
Latest incident
Aug 2017
Compliance record
MSHA citations since 2000
129
citations
46
significant & substantial
$36,871
proposed penalties
$36,148
paid to date
98% of proposed penalties paid to date, a $723 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
70
inspections on record
815
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: 815 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 has $37K in proposed MSHA penalties and $0 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.
$37K
proposed penalties
$36K
current assessed
$36K
paid to date
$0
outstanding
128 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2026-03-11.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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 Q4
9,790
0
0
0.0
2025 Q3
8,670
0
0
0.0
2025 Q2
8,882
0
0
0.0
2025 Q1
8,201
0
0
0.0
2024 Q4
6,361
1
0
157.2
2024 Q3
7,324
6
2
819.2
2024 Q2
9,669
0
0
0.0
2024 Q1
7,586
0
0
0.0
Show 96 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
10,231
15
7
1466.1
2023 Q3
8,012
4
1
499.3
2023 Q2
10,654
0
0
0.0
2023 Q1
7,381
8
1
1083.9
2022 Q4
8,193
0
0
0.0
2022 Q3
9,977
0
0
0.0
2022 Q2
10,375
0
0
0.0
2022 Q1
11,038
1
0
90.6
2021 Q4
11,372
0
0
0.0
2021 Q3
12,697
0
0
0.0
2021 Q2
11,892
0
0
0.0
2021 Q1
10,010
1
0
99.9
2020 Q4
13,789
0
0
0.0
2020 Q3
7,380
0
0
0.0
2020 Q2
10,537
4
2
379.6
2020 Q1
11,652
0
0
0.0
2019 Q4
8,942
0
0
0.0
2019 Q3
10,474
0
0
0.0
2019 Q2
11,820
0
0
0.0
2019 Q1
10,488
1
1
95.3
2018 Q4
11,590
0
0
0.0
2018 Q3
11,311
2
1
176.8
2018 Q2
10,403
0
0
0.0
2018 Q1
9,536
0
0
0.0
2017 Q4
8,028
0
0
0.0
2017 Q3
7,895
0
0
0.0
2017 Q2
8,495
0
0
0.0
2017 Q1
8,648
1
1
115.6
2016 Q4
7,886
0
0
0.0
2016 Q3
8,700
0
0
0.0
2016 Q2
8,977
0
0
0.0
2016 Q1
8,471
1
0
118.0
2015 Q4
8,207
0
0
0.0
2015 Q3
8,252
0
0
0.0
2015 Q2
7,848
13
9
1656.5
2015 Q1
7,338
0
0
0.0
2014 Q4
6,771
0
0
0.0
2014 Q3
7,254
0
0
0.0
2014 Q2
6,394
2
2
312.8
2014 Q1
6,431
10
1
1555.0
2013 Q4
6,943
0
0
0.0
2013 Q3
6,827
0
0
0.0
2013 Q2
7,343
8
1
1089.5
2013 Q1
5,640
0
0
0.0
2012 Q4
5,109
4
2
782.9
2012 Q3
4,426
0
0
0.0
2012 Q2
2,391
0
0
0.0
2012 Q1
1,758
4
2
2275.3
2011 Q4
1,189
0
0
0.0
2011 Q3
1,134
0
0
0.0
2011 Q2
983
0
0
0.0
2011 Q1
433
0
0
0.0
2010 Q4
26
0
0
0.0
2010 Q3
22
0
0
0.0
2010 Q2
95
0
0
0.0
2010 Q1
94
0
0
0.0
2009 Q4
40
0
0
0.0
2009 Q3
0
0
0
2009 Q2
467
0
0
0.0
2009 Q1
812
0
0
0.0
2008 Q4
909
0
0
0.0
2008 Q3
1,081
0
0
0.0
2008 Q2
1,039
2
0
1924.9
2008 Q1
1,126
2
0
1776.2
2007 Q4
1,243
0
0
0.0
2007 Q3
2,621
0
0
0.0
2007 Q2
2,284
0
0
0.0
2007 Q1
2,606
0
0
0.0
2006 Q4
2,558
0
0
0.0
2006 Q3
1,551
0
0
0.0
2006 Q2
1,519
3
0
1975.0
2006 Q1
1,369
2
0
1460.9
2005 Q4
1,959
0
0
0.0
2005 Q3
2,263
5
1
2209.5
2005 Q2
1,670
1
1
598.8
2005 Q1
1,660
0
0
0.0
2004 Q4
1,420
0
0
0.0
2004 Q3
1,894
2
1
1056.0
2004 Q2
1,600
0
0
0.0
2004 Q1
1,247
0
0
0.0
2003 Q4
1,536
3
0
1953.1
2003 Q3
1,475
9
5
6101.7
2003 Q2
1,161
0
0
0.0
2003 Q1
833
0
0
0.0
2002 Q4
1,577
0
0
0.0
2002 Q3
1,568
0
0
0.0
2002 Q2
2,042
0
0
0.0
2002 Q1
8,359
0
0
0.0
2001 Q4
8,071
0
0
0.0
2001 Q3
6,729
0
0
0.0
2001 Q2
7,621
0
0
0.0
2001 Q1
7,806
0
0
0.0
2000 Q4
7,314
0
0
0.0
2000 Q3
8,059
1
0
124.1
2000 Q2
6,698
8
4
1194.4
2000 Q1
5,481
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
4 on file
2017 · 1 incident
August 23, 2017AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EE hooked a chain to one side of a plate and the other end was connected to the excavator. The operator lifted the boom to flip the plate, EE pushed the plate with EE's hands causing slack in the chain, which slipped off the plate and landed on EE's feet.
1999 · 1 incident
July 19, 1999AZ · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and
docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF
with the underlying data as CSV.