Mining Incidents

Plant #32 Metal/Non-Metal

Onalaska, Monroe County, WI  ·  Active
MSHA Mine ID: 4702405

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Fatalities
0
Total incidents
13
Years on record
2000–2021
Latest incident
Feb 2021
Compliance record
MSHA citations since 2001
20
citations
3
significant & substantial
$2,345
proposed penalties
$1,741
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 3,848 0 0 0.0
2025 Q2 4,585 0 0 0.0
2025 Q1 1,933 0 0 0.0
2023 Q1 4,232 0 0 0.0
2022 Q4 3,129 0 0 0.0
2022 Q3 4,055 0 0 0.0
2022 Q1 1,653 0 0 0.0
2021 Q4 3,504 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

13 on file

2021 · 1 incident

February 25, 2021 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Milestone Materials Div/Mathy Construction Co · Struck by... (Not Elsewhere Classified)

Operator was struck in the hand while releasing the handle on a ratchet strap. Impact from the handle fractured Operator's thumb.

2016 · 1 incident

2015 · 1 incident

2010 · 1 incident

September 25, 2010 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Milestone Materials Div/Mathy Construction Co · Over-exertion in lifting objects

While lifting dredge pipe employee felt pain in lower abdomen and reported it as report only. He sought treatment on 10-28-10.

2006 · 2 incidents

August 11, 2006 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER

Employee indicates he was walking around the plant with safety glasses on; an object flew into his left eye.

June 14, 2006 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Milestone Materials Div/Mathy Construction Co · Struck by falling object

Employee had the sample catcher on her right shoulder. As she bent over to pick up the sample pail the catcher fell and struck her right shoulder.

2004 · 2 incidents

June 17, 2004 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Milestone Materials Div/Mathy Construction Co · Struck by... (Not Elsewhere Classified)

Employee was replacing teeth on a 330 Volvo front-end loader bucket. Kyle attempted to drive the pin out of the tooth with a mallet and struck his thumb as a result. Kyle began to loose time on 6/29/04.

2002 · 2 incidents

December 6, 2002 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Milestone Materials Div/Mathy Construction Co · Caught in, under or between running or meshing objects

WHEN MAKING REPAIR ON THE CRUSHER EE GRABBED THE V-BELTS TO KEEP HIS BALANCE AND THE BELT ROLLED AND PULLED HIS HAND BETWEEN THE BELT AND CHEV OR V-PULLEY.

2001 · 1 incident

October 27, 2001 WI · Metal/Non-Metal welder (shop) MACHINERY
Milestone Materials Div/Mathy Construction Co · Struck by... (Not Elsewhere Classified)

THE WELDER PLACED THE HAND GRINDER THAT HE HAD BEEN USING ON THE FENDER OF THE TRAILER THAT HE WAS WORKING ON. APPARENTLY SOMETHING CAME OFF THE GRINDING WHEEL AND STRUCK HIS EYE FROM BEHIND T HE GLASSES.

2000 · 2 incidents

March 17, 2000 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Milestone Materials Div/Mathy Construction Co · Struck against a moving object

STEERING FAILED IN HAUL TRK WHILE TRAVELING DOWN HILL THE TRK VEERED TO THE LT PLUNGING INTOBERM TRK BOX OVERTURNED