Mining Incidents

PLANT #90 Metal/Non-Metal

Merrillan, WI, Clark County, WI  ·  Active
MSHA Mine ID: 4703040

PLANT #90 has $2K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Email me when a new MSHA incident is filed at PLANT #90.

Fatalities
0
Total incidents
13
Years on record
1995–2026
Latest incident
May 2026
Compliance record
MSHA citations since 2002
14
citations
2
significant & substantial
$1,774
proposed penalties
$1,679
paid to date
95% of proposed penalties paid to date, a $95 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
36
inspections on record
321
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: 321 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 #90 has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
14 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2021-10-19.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 2,494 0 0 0.0
2025 Q3 4,699 0 0 0.0
2025 Q2 6,233 0 0 0.0
2025 Q1 4,759 0 0 0.0
2024 Q4 4,505 0 0 0.0
2024 Q3 4,406 0 0 0.0
2024 Q2 5,689 0 0 0.0
2024 Q1 3,023 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 5,092 0 0 0.0
2023 Q3 3,635 0 0 0.0
2023 Q2 6,308 0 0 0.0
2023 Q1 5,180 0 0 0.0
2022 Q4 4,162 0 0 0.0
2022 Q3 4,353 0 0 0.0
2022 Q2 4,062 0 0 0.0
2022 Q1 968 0 0 0.0
2021 Q4 4,154 1 0 240.7
2021 Q3 6,017 0 0 0.0
2021 Q2 4,823 0 0 0.0
2021 Q1 3,199 0 0 0.0
2020 Q4 3,984 0 0 0.0
2020 Q3 4,320 0 0 0.0
2020 Q2 3,999 0 0 0.0
2020 Q1 1,385 0 0 0.0
2019 Q4 3,449 1 0 289.9
2019 Q3 3,567 4 2 1121.4
2019 Q2 5,082 0 0 0.0
2019 Q1 1,153 0 0 0.0
2018 Q4 2,944 0 0 0.0
2018 Q3 5,641 0 0 0.0
2018 Q2 6,277 0 0 0.0
2018 Q1 3,649 0 0 0.0
2017 Q4 6,738 0 0 0.0
2017 Q3 4,112 0 0 0.0
2017 Q2 6,780 0 0 0.0
2017 Q1 685 0 0 0.0
2016 Q4 3,152 0 0 0.0
2016 Q3 6,082 0 0 0.0
2016 Q2 5,948 0 0 0.0
2016 Q1 1,112 0 0 0.0
2015 Q4 4,896 0 0 0.0
2015 Q3 5,056 0 0 0.0
2015 Q2 11,726 0 0 0.0
2015 Q1 3,595 0 0 0.0
2014 Q4 4,277 0 0 0.0
2014 Q3 6,673 2 0 299.7
2014 Q2 5,295 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 2,438 0 0 0.0
2013 Q3 3,392 0 0 0.0
2013 Q2 2,975 1 0 336.1
2013 Q1 1 0 0 0.0
2012 Q4 1 0 0 0.0
2012 Q3 1 0 0 0.0
2012 Q2 12 0 0 0.0
2012 Q1 14 0 0 0.0
2011 Q4 14 0 0 0.0
2011 Q3 214 0 0 0.0
2011 Q2 1,255 0 0 0.0
2011 Q1 106 0 0 0.0
2010 Q4 1,511 0 0 0.0
2010 Q3 917 0 0 0.0
2010 Q2 1,520 1 0 657.9
2010 Q1 140 0 0 0.0
2009 Q4 861 0 0 0.0
2009 Q3 1,411 1 0 708.7
2009 Q2 1,240 0 0 0.0
2009 Q1 47 0 0 0.0
2008 Q4 1,393 0 0 0.0
2008 Q3 1,396 0 0 0.0
2008 Q2 1,737 0 0 0.0
2008 Q1 1 0 0 0.0
2007 Q4 1,497 0 0 0.0
2007 Q3 1,694 0 0 0.0
2007 Q2 2,489 0 0 0.0
2007 Q1 248 0 0 0.0
2006 Q4 1,779 1 0 562.1
2006 Q3 3,063 0 0 0.0
2006 Q2 3,205 0 0 0.0
2006 Q1 1,572 0 0 0.0
2005 Q4 3,034 0 0 0.0
2005 Q3 4,355 0 0 0.0
2005 Q2 3,102 0 0 0.0
2005 Q1 1,806 0 0 0.0
2004 Q4 2,747 0 0 0.0
2004 Q3 3,979 0 0 0.0
2004 Q2 3,093 0 0 0.0
2004 Q1 1 0 0 0.0
2003 Q4 3,152 0 0 0.0
2003 Q3 1,381 0 0 0.0
2003 Q2 3,146 0 0 0.0
2003 Q1 891 0 0 0.0
2002 Q4 925 2 0 2162.2
2002 Q3 1,083 0 0 0.0
2002 Q2 900 0 0 0.0
2002 Q1 1 0 0 0.0
2001 Q4 751 0 0 0.0
2001 Q3 435 0 0 0.0
2001 Q2 696 0 0 0.0
2001 Q1 0 0 0
2000 Q4 1,186 0 0 0.0
2000 Q3 1,747 0 0 0.0
2000 Q2 1,678 0 0 0.0
2000 Q1 503 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

13 on file

2026 · 1 incident

2025 · 1 incident

2023 · 1 incident

2021 · 1 incident

January 18, 2021 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Milestone Materials Division Mathy Construction · Fall to the walkway or working surface

Employee was walking around truck when left foot broke through the ice. Employee's right foot slipped on the ice and employee fell to the ground breaking lower leg.

2016 · 1 incident

2015 · 1 incident

April 7, 2015 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Milestone Materials Division Mathy Construction · Struck against stationary object

Pushing air to air line back onto pipe, bracing against battery box of loader with side of body. Pushed hard enough against battery box to crack a rib.

2014 · 1 incident

2013 · 1 incident

2005 · 1 incident

May 11, 2005 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Milestone Materials Division Mathy Construction · Struck against stationary object

As employee scraped the floor of the quarry with the loader, the bucket dug deep into the floor resulting in the loader stopping suddenly and he struck the windshield.

2004 · 1 incident

2000 · 1 incident

1996 · 1 incident

October 31, 1996 WI · Metal/Non-Metal drill operator MACHINERY
Milestone Materials Division Mathy Construction · Over-exertion (Not Elsewhere Classified)

WHILE CHANGING A STEEL, EE WAS THROWN BACK [A CHAIN BROKE]. THE WEIGHT OF THE STEEL PUSHED HIM BACK & TWISTED & BENT HIS BACK TO THE RIGHT.

1995 · 1 incident

November 14, 1995 WI · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Milestone Materials Division Mathy Construction · Fall to the walkway or working surface

EMPLOYEE STEPPED OVER A WATERPIPE AND BOTH FEET SLIPPE DOUT ON THE WET, ICY SURFACE. HE LANDED ON HIS ELBOW WHICH JARRED HIS SHOULDER.

For insurers, brokers, and safety consultants

The full compliance file on PLANT #90

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.