Mining Incidents

Plant #59: 17 MSHA citations Metal/Non-Metal

Onalaska, La Crosse County, WI  ·  Intermittent
MSHA Mine ID: 4703215

Plant #59 has $1K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2020
Latest incident
Jul 2020
Compliance record
MSHA citations since 2000
17
citations
3
significant & substantial
$1,423
proposed penalties
$1,423
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
36
inspections on record
283
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: 283 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 #59 has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
17 assessments are final orders; 1 contested dockets.
Of $400 in penalties contested before the Commission, $300 was upheld in final decisions.
As of the most recent assessment on 2015-06-08.
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.
17.6%
significant & substantial
23.5%
high negligence or reckless
17.6%
reasonably likely or greater
52.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.6% low, 58.8% moderate, 23.5% 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.
4 citations taken to the federal commission · 24% of citations on record
  • Settled 3 · 75%
  • Vacated or withdrawn 1 · 25%
25%
Penalty reduction in decided contests
$400 proposed, $300 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 2010-10-20.
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 2011-61M Settlement Zielinski 2012 $400 → $300
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: 2026-05-14
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
2026-05-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-09-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-04-09 Respirable dust, <.1mg 0 Washer Operator
2015-06-09 Respirable dust, <.1mg 0 Washer Operator
2009-04-28 Respirable dust, <.1mg 0 Drill Operator, Rotary Air
2009-04-28 Respirable dust, <.1mg 0 Washer Operator
2002-06-25 Quartz, respirable, >1% Qtz 0.6 2.91 0.21 Crusher Oper/Worker
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 Co 1999 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 2
2016 1
2015 2
2014 2
2013 2
2012 2
2011 2
2010 3
2009 2
2008 2
2007 2
2006 2
2005 2
2004 3
2003 2
2002 1
2001 1
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Plant #59 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 1,637 0 0 0.0
2026 Q1 89 0 0 0.0
2025 Q4 1,605 0 0 0.0
2025 Q3 1,862 0 0 0.0
2025 Q2 1,629 0 0 0.0
2025 Q1 157 0 0 0.0
2024 Q4 688 0 0 0.0
2024 Q3 1,473 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,546 0 0 0.0
2024 Q1 32 0 0 0.0
2023 Q4 896 0 0 0.0
2023 Q3 1,739 0 0 0.0
2023 Q2 1,356 0 0 0.0
2023 Q1 113 0 0 0.0
2022 Q4 693 0 0 0.0
2022 Q3 1,908 0 0 0.0
2022 Q2 1,757 0 0 0.0
2022 Q1 172 0 0 0.0
2021 Q4 1,285 0 0 0.0
2021 Q3 1,776 0 0 0.0
2021 Q2 1,506 0 0 0.0
2021 Q1 96 0 0 0.0
2020 Q4 547 0 0 0.0
2020 Q3 1,885 0 0 0.0
2020 Q2 1,867 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 477 0 0 0.0
2019 Q3 1,559 0 0 0.0
2019 Q2 1,408 0 0 0.0
2019 Q1 217 0 0 0.0
2018 Q4 663 0 0 0.0
2018 Q3 1,434 0 0 0.0
2018 Q2 1,392 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 1,095 0 0 0.0
2017 Q3 1,443 0 0 0.0
2017 Q2 1,727 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 909 0 0 0.0
2016 Q3 976 0 0 0.0
2016 Q2 994 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 1,025 0 0 0.0
2015 Q3 2,180 0 0 0.0
2015 Q2 1,586 2 0 1261.0
2015 Q1 1 0 0 0.0
2014 Q4 763 0 0 0.0
2014 Q3 1,822 1 0 548.8
2014 Q2 1,130 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 444 0 0 0.0
2013 Q3 1,505 0 0 0.0
2013 Q2 1,541 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 890 0 0 0.0
2012 Q3 1,459 0 0 0.0
2012 Q2 2,042 0 0 0.0
2012 Q1 401 0 0 0.0
2011 Q4 1,198 0 0 0.0
2011 Q3 2,156 0 0 0.0
2011 Q2 2,134 1 0 468.6
2011 Q1 103 0 0 0.0
2010 Q4 780 0 0 0.0
2010 Q3 2,574 5 0 1942.5
2010 Q2 2,422 0 0 0.0
2010 Q1 31 0 0 0.0
2009 Q4 647 0 0 0.0
2009 Q3 2,402 0 0 0.0
2009 Q2 1,588 0 0 0.0
2009 Q1 16 0 0 0.0
2008 Q4 150 0 0 0.0
2008 Q3 1,864 0 0 0.0
2008 Q2 1,934 0 0 0.0
2008 Q1 1 0 0 0.0
2007 Q4 566 0 0 0.0
2007 Q3 3,036 0 0 0.0
2007 Q2 1,605 0 0 0.0
2007 Q1 15 0 0 0.0
2006 Q4 1 0 0 0.0
2006 Q3 2,060 2 0 970.9
2006 Q2 1,510 0 0 0.0
2006 Q1 2 0 0 0.0
2005 Q4 801 0 0 0.0
2005 Q3 2,824 0 0 0.0
2005 Q2 2,534 2 0 789.3
2005 Q1 1 0 0 0.0
2004 Q4 1,567 0 0 0.0
2004 Q3 4,007 0 0 0.0
2004 Q2 2,167 0 0 0.0
2004 Q1 60 0 0 0.0
2003 Q4 386 0 0 0.0
2003 Q3 148 0 0 0.0
2003 Q2 2,745 0 0 0.0
2003 Q1 0 0 0
2002 Q4 2 0 0 0.0
2002 Q3 304 0 0 0.0
2002 Q2 575 0 0 0.0
2002 Q1 1 0 0 0.0
2001 Q4 253 0 0 0.0
2001 Q3 226 1 0 4424.8
2001 Q2 321 0 0 0.0
2001 Q1 58 0 0 0.0
2000 Q4 259 0 0 0.0
2000 Q3 789 0 0 0.0
2000 Q2 213 3 3 14084.5
2000 Q1 1 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2020 · 1 incident