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: 163 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Plant 12 has $2K in proposed MSHA penalties and $0 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
18 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-08-09.
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.
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: 2025-05-08
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Quartz, respirable, >1% Qtz1
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-05-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2022-09-13
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-07-06
Quartz, respirable, >1% Qtz
0.14
0.64
0.22
Oiler, Greaser
2013-10-31
Respirable dust, <.1mg
0
Front-end Loader Operator
2013-10-31
Respirable dust, <.1mg
0
Screen/Scalper 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
1
2025
3
2024
3
2023
5
2022
15
2021
3
2020
2
2019
2
2018
2
2017
2
2016
2
2015
2
2014
3
2013
2
2012
2
2011
3
2010
1
2009
3
2008
2
2007
4
Source: MSHA quarterly employment and production, updated weekly.
Plant 12 sits in St. Louis County, Minnesota, where the Census mining category is 2.3% 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.
St. Louis County, Minnesota · Population 200,056
2.3%
Mining share of county employment
$69,455
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
0
0
0.0
2026 Q1
1
0
0
0.0
2025 Q4
1,675
0
0
0.0
2025 Q3
1
0
0
0.0
2025 Q2
1,170
0
0
0.0
2025 Q1
0
0
0
2024 Q4
27
0
0
0.0
2024 Q3
598
0
0
0.0
Show 69 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
284
0
0
0.0
2024 Q1
1
0
0
0.0
2023 Q4
551
0
0
0.0
2023 Q3
738
3
1
4065.0
2023 Q2
860
0
0
0.0
2023 Q1
280
0
0
0.0
2022 Q4
369
0
0
0.0
2022 Q3
1,454
2
0
1375.5
2022 Q2
408
0
0
0.0
2022 Q1
1
0
0
0.0
2021 Q4
135
0
0
0.0
2021 Q3
404
0
0
0.0
2021 Q2
558
0
0
0.0
2021 Q1
1
0
0
0.0
2020 Q4
158
0
0
0.0
2020 Q3
133
0
0
0.0
2020 Q2
219
0
0
0.0
2020 Q1
1
0
0
0.0
2019 Q4
1
0
0
0.0
2019 Q3
925
0
0
0.0
2019 Q2
168
0
0
0.0
2019 Q1
1
0
0
0.0
2018 Q4
1
0
0
0.0
2018 Q3
152
0
0
0.0
2018 Q2
191
0
0
0.0
2018 Q1
1
0
0
0.0
2017 Q4
412
0
0
0.0
2017 Q3
545
0
0
0.0
2017 Q2
605
0
0
0.0
2017 Q1
1
0
0
0.0
2016 Q4
293
0
0
0.0
2016 Q3
441
0
0
0.0
2016 Q2
16
0
0
0.0
2016 Q1
1
0
0
0.0
2015 Q4
279
0
0
0.0
2015 Q3
585
0
0
0.0
2015 Q2
1
0
0
0.0
2015 Q1
1
0
0
0.0
2014 Q4
1,153
7
4
6071.1
2014 Q3
1,939
0
0
0.0
2014 Q2
71
0
0
0.0
2014 Q1
1
0
0
0.0
2013 Q4
787
0
0
0.0
2013 Q3
318
0
0
0.0
2013 Q2
1
0
0
0.0
2013 Q1
2
0
0
0.0
2012 Q4
1
0
0
0.0
2012 Q3
184
0
0
0.0
2012 Q2
712
0
0
0.0
2012 Q1
1
0
0
0.0
2011 Q4
1,567
0
0
0.0
2011 Q3
2,113
0
0
0.0
2011 Q2
240
0
0
0.0
2011 Q1
0
0
0
2010 Q4
0
0
0
2010 Q3
690
2
0
2898.6
2010 Q2
345
0
0
0.0
2010 Q1
0
0
0
2009 Q4
251
0
0
0.0
2009 Q3
2,712
0
0
0.0
2009 Q2
1,775
0
0
0.0
2009 Q1
0
0
0
2008 Q4
233
0
0
0.0
2008 Q3
681
0
0
0.0
2008 Q2
206
0
0
0.0
2008 Q1
0
0
0
2007 Q4
419
3
1
7159.9
2007 Q3
1,340
1
0
746.3
2007 Q2
373
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2014 · 1 incident
September 22, 2014MN · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
Employee claims he injured his left shoulder or aggravated a preexisting condition while climbing down from a feeder. NOTE: THIS INJURY WAS NOT REPORTED UNTIL 02/27/15.