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: 250 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 #86 has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
11 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2021-05-26.
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: 2020-07-29, 6 years ago
0%
of limit-tested samples over the exposure limit
4
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg3
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (4)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2020-07-29
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-07-29
Nuisance dust, respirable, <1% Qtz
0.17
10
0.02
Front-end Loader Operator
2014-07-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-07-23
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
3
2025
3
2024
2
2023
2
2022
2
2021
3
2020
1
2019
1
2018
1
2017
1
2016
1
2015
2
2014
2
2013
1
2012
2
2011
1
2010
1
2009
1
2008
2
2007
1
2006
1
Source: MSHA quarterly employment and production, updated weekly.
Plant #86 sits in Sauk County, Wisconsin, where the Census mining category is 0.3% 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.
Sauk County, Wisconsin · Population 65,759
0.3%
Mining share of county employment
$77,648
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
2,357
0
0
0.0
2026 Q1
1,731
0
0
0.0
2025 Q4
1,881
0
0
0.0
2025 Q3
2,164
0
0
0.0
2025 Q2
2,221
0
0
0.0
2025 Q1
1,192
0
0
0.0
2024 Q4
1,525
0
0
0.0
2024 Q3
1,777
0
0
0.0
Show 73 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,684
0
0
0.0
2024 Q1
1,076
0
0
0.0
2023 Q4
1,516
0
0
0.0
2023 Q3
1,168
0
0
0.0
2023 Q2
2,029
0
0
0.0
2023 Q1
1,073
0
0
0.0
2022 Q4
1,659
0
0
0.0
2022 Q3
2,215
0
0
0.0
2022 Q2
1,817
0
0
0.0
2022 Q1
1,238
0
0
0.0
2021 Q4
1,865
0
0
0.0
2021 Q3
2,104
0
0
0.0
2021 Q2
2,193
0
0
0.0
2021 Q1
1,208
0
0
0.0
2020 Q4
361
0
0
0.0
2020 Q3
334
0
0
0.0
2020 Q2
426
0
0
0.0
2020 Q1
0
0
0
2019 Q4
0
0
0
2019 Q3
208
1
0
4807.7
2019 Q2
625
0
0
0.0
2019 Q1
63
0
0
0.0
2018 Q4
556
0
0
0.0
2018 Q3
163
0
0
0.0
2018 Q2
457
0
0
0.0
2018 Q1
0
0
0
2017 Q4
362
0
0
0.0
2017 Q3
430
0
0
0.0
2017 Q2
154
0
0
0.0
2017 Q1
161
0
0
0.0
2016 Q4
386
0
0
0.0
2016 Q3
111
0
0
0.0
2016 Q2
388
0
0
0.0
2016 Q1
171
0
0
0.0
2015 Q4
142
0
0
0.0
2015 Q3
112
0
0
0.0
2015 Q2
41
1
0
24390.2
2015 Q1
90
0
0
0.0
2014 Q4
1,692
0
0
0.0
2014 Q3
1,924
0
0
0.0
2014 Q2
433
0
0
0.0
2014 Q1
0
0
0
2013 Q4
295
0
0
0.0
2013 Q3
297
0
0
0.0
2013 Q2
0
0
0
2013 Q1
0
0
0
2012 Q4
679
0
0
0.0
2012 Q3
100
0
0
0.0
2012 Q2
329
1
0
3039.5
2012 Q1
210
0
0
0.0
2011 Q4
337
0
0
0.0
2011 Q3
163
0
0
0.0
2011 Q2
141
0
0
0.0
2011 Q1
0
0
0
2010 Q4
462
0
0
0.0
2010 Q3
530
2
0
3773.6
2010 Q2
592
0
0
0.0
2010 Q1
0
0
0
2009 Q4
294
0
0
0.0
2009 Q3
666
0
0
0.0
2009 Q2
330
0
0
0.0
2009 Q1
274
2
0
7299.3
2008 Q4
1,509
0
0
0.0
2008 Q3
770
0
0
0.0
2008 Q2
577
0
0
0.0
2008 Q1
170
0
0
0.0
2007 Q4
474
0
0
0.0
2007 Q3
351
0
0
0.0
2007 Q2
732
0
0
0.0
2007 Q1
0
0
0
2006 Q4
964
0
0
0.0
2006 Q3
739
0
0
0.0
2006 Q2
622
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2013 · 1 incident
August 6, 2013WI · Metal/Non-Metaloutside foreman, leadmanDISORDERS (PHYSICAL AGENTS)