Mining Incidents

Plant 76: 4 MSHA citations Metal/Non-Metal

Onalaska, La Crosse County, WI  ·  Active
MSHA Mine ID: 4703505

Plant 76 has $425 in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Plant 76.

Fatalities
0
Total incidents
1
Years on record
2010
Latest incident
Oct 2010
Compliance record
MSHA citations since 2010
4
citations
1
significant & substantial
$425
proposed penalties
$425
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
24
inspections on record
189
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: 189 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 76 has $425 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.
$425
proposed penalties
$425
current assessed
$425
paid to date
$0
outstanding
4 assessments are final orders; 1 contested dockets.
Of $125 in penalties contested before the Commission, $125 was upheld in final decisions.
As of the most recent assessment on 2021-03-30.
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.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 50.0% moderate, 0.0% high, 0.0% reckless.
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.
1 citations taken to the federal commission · 25% of citations on record
  • Settled 1 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$125 proposed, $125 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 2021-05-24.
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.
Docket Decision Judge Year Proposed / upheld
LAKE 2021-0136 Settlement Manning 2021 $125 → $125
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2026-03-24
5
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-03-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-10-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-09-10 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2011-05-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2007-06-12 Unlisted Particulate, respirable, <1% Qtz 0.13 Dry Screen Plant 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.
Ownership history
  1. Milestone Materials Division Mathy Construction 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 1
2024 2
2023 2
2022 2
2021 2
2020 1
2019 2
2018 1
2017 2
2016 1
2015 1
2014 1
2013 1
2012 2
2011 2
2010 2
2009 2
2008 2
2007 1
Source: MSHA quarterly employment and production, updated weekly.

Plant 76 sits in La Crosse County, Wisconsin, where the Census mining category is 0.0% 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.
La Crosse County, Wisconsin · Population 120,262
0.0%
Mining share of county employment
$70,704
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 1,337 0 0 0.0
2026 Q1 212 0 0 0.0
2025 Q4 1,071 0 0 0.0
2025 Q3 1,047 0 0 0.0
2025 Q2 1,710 0 0 0.0
2025 Q1 921 0 0 0.0
2024 Q4 1,371 0 0 0.0
2024 Q3 1,192 0 0 0.0
Show 69 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,542 0 0 0.0
2024 Q1 197 0 0 0.0
2023 Q4 573 0 0 0.0
2023 Q3 1,373 0 0 0.0
2023 Q2 1,321 0 0 0.0
2023 Q1 96 0 0 0.0
2022 Q4 505 0 0 0.0
2022 Q3 1,257 0 0 0.0
2022 Q2 1,232 0 0 0.0
2022 Q1 171 0 0 0.0
2021 Q4 110 0 0 0.0
2021 Q3 1,167 0 0 0.0
2021 Q2 1,152 0 0 0.0
2021 Q1 152 1 1 6578.9
2020 Q4 503 0 0 0.0
2020 Q3 1,110 0 0 0.0
2020 Q2 876 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 723 0 0 0.0
2019 Q3 1,454 0 0 0.0
2019 Q2 1,194 0 0 0.0
2019 Q1 39 0 0 0.0
2018 Q4 447 0 0 0.0
2018 Q3 1,210 0 0 0.0
2018 Q2 860 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 422 0 0 0.0
2017 Q3 1,131 0 0 0.0
2017 Q2 1,590 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 297 0 0 0.0
2016 Q3 916 0 0 0.0
2016 Q2 1,023 2 0 1955.0
2016 Q1 29 0 0 0.0
2015 Q4 517 0 0 0.0
2015 Q3 1,323 0 0 0.0
2015 Q2 1,032 0 0 0.0
2015 Q1 55 0 0 0.0
2014 Q4 415 0 0 0.0
2014 Q3 830 0 0 0.0
2014 Q2 1,151 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 172 0 0 0.0
2013 Q3 943 0 0 0.0
2013 Q2 841 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 769 0 0 0.0
2012 Q3 1,189 0 0 0.0
2012 Q2 1,202 0 0 0.0
2012 Q1 71 0 0 0.0
2011 Q4 740 0 0 0.0
2011 Q3 1,421 0 0 0.0
2011 Q2 1,207 0 0 0.0
2011 Q1 1 0 0 0.0
2010 Q4 743 0 0 0.0
2010 Q3 1,514 1 0 660.5
2010 Q2 1,202 0 0 0.0
2010 Q1 140 0 0 0.0
2009 Q4 586 0 0 0.0
2009 Q3 1,202 0 0 0.0
2009 Q2 1,087 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 769 0 0 0.0
2008 Q3 1,642 0 0 0.0
2008 Q2 1,488 0 0 0.0
2008 Q1 273 0 0 0.0
2007 Q4 894 0 0 0.0
2007 Q3 1,473 0 0 0.0
2007 Q2 777 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2010 · 1 incident