Mining Incidents

Plant 77: 5 MSHA citations Metal/Non-Metal

Eau Claire, La Crosse County, WI  ·  Intermittent
MSHA Mine ID: 4703527

Plant 77 has $789 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2023
Latest incident
Jun 2023
Compliance record
MSHA citations since 2010
5
citations
0
significant & substantial
$789
proposed penalties
$789
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2008
24
inspections on record
184
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: 184 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 77 has $789 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.
$789
proposed penalties
$789
current assessed
$789
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-06-27.
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.
0.0%
significant & substantial
20.0%
high negligence or reckless
0.0%
reasonably likely or greater
60.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 80.0% moderate, 20.0% high, 0.0% reckless.
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: 2023-06-28, 3 years ago
5
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-06-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-03-10 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-10-11 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2012-10-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2008-04-23 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.
Ownership history
  1. Milestone Materials Division Mathy Construction 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 1
2023 1
2022 1
2021 1
2020 1
2019 1
2018 2
2017 1
2016 2
2015 2
2014 1
2013 2
2012 2
2011 2
2010 2
2009 2
2008 2
Source: MSHA quarterly employment and production, updated weekly.

Plant 77 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 494 0 0 0.0
2026 Q1 1 0 0 0.0
2025 Q4 681 0 0 0.0
2025 Q3 1,371 0 0 0.0
2025 Q2 1,212 0 0 0.0
2025 Q1 132 0 0 0.0
2024 Q4 515 0 0 0.0
2024 Q3 714 0 0 0.0
Show 65 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 441 0 0 0.0
2024 Q1 265 0 0 0.0
2023 Q4 712 0 0 0.0
2023 Q3 1,155 0 0 0.0
2023 Q2 694 2 0 2881.8
2023 Q1 1 0 0 0.0
2022 Q4 569 0 0 0.0
2022 Q3 933 0 0 0.0
2022 Q2 879 0 0 0.0
2022 Q1 132 0 0 0.0
2021 Q4 611 0 0 0.0
2021 Q3 769 0 0 0.0
2021 Q2 1,314 0 0 0.0
2021 Q1 538 0 0 0.0
2020 Q4 437 0 0 0.0
2020 Q3 784 0 0 0.0
2020 Q2 911 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 789 0 0 0.0
2019 Q3 927 0 0 0.0
2019 Q2 1,302 0 0 0.0
2019 Q1 31 0 0 0.0
2018 Q4 646 0 0 0.0
2018 Q3 1,566 0 0 0.0
2018 Q2 1,376 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 704 0 0 0.0
2017 Q3 1,506 0 0 0.0
2017 Q2 1,039 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 662 0 0 0.0
2016 Q3 1,245 0 0 0.0
2016 Q2 1,304 2 0 1533.7
2016 Q1 29 0 0 0.0
2015 Q4 654 0 0 0.0
2015 Q3 2,012 0 0 0.0
2015 Q2 2,060 0 0 0.0
2015 Q1 32 0 0 0.0
2014 Q4 424 0 0 0.0
2014 Q3 411 0 0 0.0
2014 Q2 1,585 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 521 0 0 0.0
2013 Q3 1,139 0 0 0.0
2013 Q2 1,129 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 1,047 0 0 0.0
2012 Q3 1,729 0 0 0.0
2012 Q2 1,199 0 0 0.0
2012 Q1 292 0 0 0.0
2011 Q4 1,225 0 0 0.0
2011 Q3 1,313 0 0 0.0
2011 Q2 2,348 0 0 0.0
2011 Q1 1 0 0 0.0
2010 Q4 655 0 0 0.0
2010 Q3 1,429 1 0 699.8
2010 Q2 1,331 0 0 0.0
2010 Q1 179 0 0 0.0
2009 Q4 385 0 0 0.0
2009 Q3 1,328 0 0 0.0
2009 Q2 1,378 0 0 0.0
2009 Q1 52 0 0 0.0
2008 Q4 860 0 0 0.0
2008 Q3 1,672 0 0 0.0
2008 Q2 2,518 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2023 · 1 incident