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: 248 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 #70 has $347 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.
$347
proposed penalties
$347
current assessed
$347
paid to date
$0
outstanding
3 assessments are final orders; 1 contested dockets.
Of $147 in penalties contested before the Commission, $147 was upheld in final decisions.
As of the most recent assessment on 2024-08-21.
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.
1citations taken to the federal commission · 33% of citations on record
Stood as issued
1 · 100%
0%
Penalty reduction in decided contests
$147 proposed, $147 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2024-10-28.
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: 2024-09-24
0%
of limit-tested samples over the exposure limit
7
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg6
Quartz, respirable, >1% Qtz1
Show the individual readings (7)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-09-24
Quartz, respirable, >1% Qtz
0.28
0.75
0.37
Front-end Loader Operator
2024-09-24
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-09-06
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-09-06
Respirable dust, <.1mg
0
Backhoe Operator
2012-09-06
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
0
2022
1
2021
1
2020
1
2019
1
2018
2
2017
1
2016
2
2015
1
2014
1
2013
0
2012
2
2011
1
2010
1
2009
1
2008
1
2007
1
2006
1
2005
1
2004
2
2003
2
2002
2
Source: MSHA quarterly employment and production, updated weekly.
Plant #70 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
3,370
0
0
0.0
2026 Q1
1,529
0
0
0.0
2025 Q4
2,582
0
0
0.0
2025 Q3
3,308
0
0
0.0
2025 Q2
3,033
0
0
0.0
2025 Q1
403
0
0
0.0
2024 Q4
1,594
0
0
0.0
2024 Q3
2,905
1
0
344.2
Show 89 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
2,293
0
0
0.0
2024 Q1
0
0
0
2023 Q4
0
0
0
2023 Q3
0
0
0
2023 Q2
0
0
0
2023 Q1
0
0
0
2022 Q4
1
0
0
0.0
2022 Q3
1
0
0
0.0
2022 Q2
1
0
0
0.0
2022 Q1
1
0
0
0.0
2021 Q4
1
0
0
0.0
2021 Q3
1
0
0
0.0
2021 Q2
1
0
0
0.0
2021 Q1
0
0
0
2020 Q4
0
0
0
2020 Q3
367
0
0
0.0
2020 Q2
224
0
0
0.0
2020 Q1
0
0
0
2019 Q4
0
0
0
2019 Q3
115
0
0
0.0
2019 Q2
53
0
0
0.0
2019 Q1
0
0
0
2018 Q4
1,369
0
0
0.0
2018 Q3
1,177
0
0
0.0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
356
0
0
0.0
2017 Q3
113
0
0
0.0
2017 Q2
0
0
0
2017 Q1
0
0
0
2016 Q4
910
0
0
0.0
2016 Q3
108
0
0
0.0
2016 Q2
368
0
0
0.0
2016 Q1
0
0
0
2015 Q4
0
0
0
2015 Q3
88
0
0
0.0
2015 Q2
0
0
0
2015 Q1
0
0
0
2014 Q4
331
0
0
0.0
2014 Q3
104
0
0
0.0
2014 Q2
0
0
0
2014 Q1
0
0
0
2013 Q4
0
0
0
2013 Q3
0
0
0
2013 Q2
141
0
0
0.0
2013 Q1
0
0
0
2012 Q4
133
0
0
0.0
2012 Q3
822
1
0
1216.5
2012 Q2
839
0
0
0.0
2012 Q1
259
0
0
0.0
2011 Q4
88
0
0
0.0
2011 Q3
198
0
0
0.0
2011 Q2
180
0
0
0.0
2011 Q1
0
0
0
2010 Q4
112
0
0
0.0
2010 Q3
72
0
0
0.0
2010 Q2
317
0
0
0.0
2010 Q1
0
0
0
2009 Q4
794
0
0
0.0
2009 Q3
496
0
0
0.0
2009 Q2
0
0
0
2009 Q1
0
0
0
2008 Q4
1,120
1
0
892.9
2008 Q3
899
0
0
0.0
2008 Q2
445
0
0
0.0
2008 Q1
0
0
0
2007 Q4
670
0
0
0.0
2007 Q3
860
0
0
0.0
2007 Q2
727
0
0
0.0
2007 Q1
270
0
0
0.0
2006 Q4
675
0
0
0.0
2006 Q3
1,003
0
0
0.0
2006 Q2
687
0
0
0.0
2006 Q1
382
0
0
0.0
2005 Q4
570
0
0
0.0
2005 Q3
585
0
0
0.0
2005 Q2
204
0
0
0.0
2005 Q1
0
0
0
2004 Q4
100
0
0
0.0
2004 Q3
581
0
0
0.0
2004 Q2
775
0
0
0.0
2004 Q1
364
0
0
0.0
2003 Q4
109
0
0
0.0
2003 Q3
323
0
0
0.0
2003 Q2
605
0
0
0.0
2003 Q1
1,036
0
0
0.0
2002 Q4
828
0
0
0.0
2002 Q3
674
0
0
0.0
2002 Q2
432
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2026 · 1 incident
May 27, 2026WI · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Employee was finishing up work on loader and putting tools away. Experienced sharp pain in middle back under shoulder blade. Employee states he was twisting and reaching in an awkward position.
Related mines
Other mines operated by Milestone Materials Div/Mathy Construction Co