Plant #50 Metal/Non-Metal
Controlled by
Mathy Construction Company
Onalaska,
La Crosse County,
WI
·
Intermittent
MSHA Mine ID: 4703042
Plant #50 has $100 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
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2010
1
citations
0
significant & substantial
$100
proposed penalties
$100
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
35
inspections on record
242
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: 242 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 #50 has $100 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.$100
proposed penalties
$100
current assessed
$100
paid to date
$0
outstanding
1 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2010-07-21.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 | 344 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,265 | 0 | 0 | 0.0 |
| 2025 Q2 | 1,147 | 0 | 0 | 0.0 |
| 2025 Q1 | 1 | 0 | 0 | 0.0 |
| 2024 Q4 | 1 | 0 | 0 | 0.0 |
| 2024 Q3 | 1 | 0 | 0 | 0.0 |
| 2024 Q2 | 1 | 0 | 0 | 0.0 |
| 2024 Q1 | 1 | 0 | 0 | 0.0 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 1 | 0 | 0 | 0.0 |
| 2023 Q3 | 1,100 | 0 | 0 | 0.0 |
| 2023 Q2 | 1 | 0 | 0 | 0.0 |
| 2023 Q1 | 1 | 0 | 0 | 0.0 |
| 2022 Q4 | 93 | 0 | 0 | 0.0 |
| 2022 Q3 | 651 | 0 | 0 | 0.0 |
| 2022 Q2 | 943 | 0 | 0 | 0.0 |
| 2022 Q1 | 1 | 0 | 0 | 0.0 |
| 2021 Q4 | 361 | 0 | 0 | 0.0 |
| 2021 Q3 | 124 | 0 | 0 | 0.0 |
| 2021 Q2 | 295 | 0 | 0 | 0.0 |
| 2021 Q1 | 446 | 0 | 0 | 0.0 |
| 2020 Q4 | 214 | 0 | 0 | 0.0 |
| 2020 Q3 | 423 | 0 | 0 | 0.0 |
| 2020 Q2 | 234 | 0 | 0 | 0.0 |
| 2020 Q1 | 358 | 0 | 0 | 0.0 |
| 2019 Q4 | 368 | 0 | 0 | 0.0 |
| 2019 Q3 | 190 | 0 | 0 | 0.0 |
| 2019 Q2 | 1 | 0 | 0 | 0.0 |
| 2019 Q1 | 1 | 0 | 0 | 0.0 |
| 2018 Q4 | 1 | 0 | 0 | 0.0 |
| 2018 Q3 | 0 | 0 | 0 | |
| 2018 Q2 | 309 | 0 | 0 | 0.0 |
| 2018 Q1 | 1 | 0 | 0 | 0.0 |
| 2017 Q4 | 1 | 0 | 0 | 0.0 |
| 2017 Q3 | 460 | 0 | 0 | 0.0 |
| 2017 Q2 | 220 | 0 | 0 | 0.0 |
| 2017 Q1 | 1 | 0 | 0 | 0.0 |
| 2016 Q4 | 1 | 0 | 0 | 0.0 |
| 2016 Q3 | 1 | 0 | 0 | 0.0 |
| 2016 Q2 | 1 | 0 | 0 | 0.0 |
| 2016 Q1 | 1 | 0 | 0 | 0.0 |
| 2015 Q4 | 258 | 0 | 0 | 0.0 |
| 2015 Q3 | 280 | 0 | 0 | 0.0 |
| 2015 Q2 | 167 | 0 | 0 | 0.0 |
| 2015 Q1 | 1 | 0 | 0 | 0.0 |
| 2014 Q4 | 1 | 0 | 0 | 0.0 |
| 2014 Q3 | 1 | 0 | 0 | 0.0 |
| 2014 Q2 | 262 | 0 | 0 | 0.0 |
| 2014 Q1 | 1 | 0 | 0 | 0.0 |
| 2013 Q4 | 406 | 0 | 0 | 0.0 |
| 2013 Q3 | 422 | 0 | 0 | 0.0 |
| 2013 Q2 | 92 | 0 | 0 | 0.0 |
| 2013 Q1 | 1 | 0 | 0 | 0.0 |
| 2012 Q4 | 306 | 0 | 0 | 0.0 |
| 2012 Q3 | 786 | 0 | 0 | 0.0 |
| 2012 Q2 | 786 | 0 | 0 | 0.0 |
| 2012 Q1 | 155 | 0 | 0 | 0.0 |
| 2011 Q4 | 179 | 0 | 0 | 0.0 |
| 2011 Q3 | 82 | 0 | 0 | 0.0 |
| 2011 Q2 | 597 | 0 | 0 | 0.0 |
| 2011 Q1 | 416 | 0 | 0 | 0.0 |
| 2010 Q4 | 102 | 0 | 0 | 0.0 |
| 2010 Q3 | 655 | 1 | 0 | 1526.7 |
| 2010 Q2 | 1,857 | 0 | 0 | 0.0 |
| 2010 Q1 | 1 | 0 | 0 | 0.0 |
| 2009 Q4 | 218 | 0 | 0 | 0.0 |
| 2009 Q3 | 1,109 | 0 | 0 | 0.0 |
| 2009 Q2 | 1,104 | 0 | 0 | 0.0 |
| 2009 Q1 | 1 | 0 | 0 | 0.0 |
| 2008 Q4 | 1,068 | 0 | 0 | 0.0 |
| 2008 Q3 | 1,024 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,027 | 0 | 0 | 0.0 |
| 2008 Q1 | 1 | 0 | 0 | 0.0 |
| 2007 Q4 | 482 | 0 | 0 | 0.0 |
| 2007 Q3 | 661 | 0 | 0 | 0.0 |
| 2007 Q2 | 836 | 0 | 0 | 0.0 |
| 2007 Q1 | 1 | 0 | 0 | 0.0 |
| 2006 Q4 | 720 | 0 | 0 | 0.0 |
| 2006 Q3 | 1,420 | 0 | 0 | 0.0 |
| 2006 Q2 | 2,367 | 0 | 0 | 0.0 |
| 2006 Q1 | 4 | 0 | 0 | 0.0 |
| 2005 Q4 | 1,252 | 0 | 0 | 0.0 |
| 2005 Q3 | 1,720 | 0 | 0 | 0.0 |
| 2005 Q2 | 1,043 | 0 | 0 | 0.0 |
| 2005 Q1 | 1 | 0 | 0 | 0.0 |
| 2004 Q4 | 626 | 0 | 0 | 0.0 |
| 2004 Q3 | 1,564 | 0 | 0 | 0.0 |
| 2004 Q2 | 457 | 0 | 0 | 0.0 |
| 2004 Q1 | 1 | 0 | 0 | 0.0 |
| 2003 Q4 | 809 | 0 | 0 | 0.0 |
| 2003 Q3 | 629 | 0 | 0 | 0.0 |
| 2003 Q2 | 4,195 | 0 | 0 | 0.0 |
| 2003 Q1 | 0 | 0 | 0 | |
| 2002 Q4 | 250 | 0 | 0 | 0.0 |
| 2002 Q3 | 209 | 0 | 0 | 0.0 |
| 2002 Q2 | 613 | 0 | 0 | 0.0 |
| 2002 Q1 | 1 | 0 | 0 | 0.0 |
| 2001 Q4 | 697 | 0 | 0 | 0.0 |
| 2001 Q3 | 3,534 | 0 | 0 | 0.0 |
| 2001 Q2 | 548 | 0 | 0 | 0.0 |
| 2001 Q1 | 87 | 0 | 0 | 0.0 |
| 2000 Q4 | 1,228 | 0 | 0 | 0.0 |
| 2000 Q3 | 966 | 0 | 0 | 0.0 |
| 2000 Q2 | 1,075 | 0 | 0 | 0.0 |
| 2000 Q1 | 344 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Plant #50
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.