Milestone Materials Division of Mathy Construction · Struck against a moving object
Jarring motion of digging hard rock over the course of the day caused lower back pain.
Plant 80 Metal/Non-Metal
Plant 80 has $351 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
- 3
- Years on record
- 2011–2017
- Latest incident
- Jan 2017
Compliance record
MSHA citations since 2011
3
citations
0
significant & substantial
$351
proposed penalties
$351
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2011
21
inspections on record
163
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: 163 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 80 has $351 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.$351
proposed penalties
$351
current assessed
$351
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-12-16.
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 | 3,983 | 1 | 0 | 251.1 |
| 2025 Q3 | 5,525 | 0 | 0 | 0.0 |
| 2025 Q2 | 4,533 | 0 | 0 | 0.0 |
| 2025 Q1 | 2,852 | 0 | 0 | 0.0 |
| 2024 Q4 | 3,584 | 0 | 0 | 0.0 |
| 2024 Q3 | 3,110 | 0 | 0 | 0.0 |
| 2024 Q2 | 4,567 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,169 | 0 | 0 | 0.0 |
Show 51 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 4,109 | 0 | 0 | 0.0 |
| 2023 Q3 | 5,729 | 0 | 0 | 0.0 |
| 2023 Q2 | 6,217 | 0 | 0 | 0.0 |
| 2023 Q1 | 3,559 | 0 | 0 | 0.0 |
| 2022 Q4 | 4,114 | 0 | 0 | 0.0 |
| 2022 Q3 | 4,104 | 0 | 0 | 0.0 |
| 2022 Q2 | 5,291 | 0 | 0 | 0.0 |
| 2022 Q1 | 2,848 | 0 | 0 | 0.0 |
| 2021 Q4 | 2,843 | 0 | 0 | 0.0 |
| 2021 Q3 | 4,265 | 0 | 0 | 0.0 |
| 2021 Q2 | 5,312 | 0 | 0 | 0.0 |
| 2021 Q1 | 3,057 | 0 | 0 | 0.0 |
| 2020 Q4 | 2,911 | 0 | 0 | 0.0 |
| 2020 Q3 | 2,833 | 0 | 0 | 0.0 |
| 2020 Q2 | 4,835 | 0 | 0 | 0.0 |
| 2020 Q1 | 3,224 | 0 | 0 | 0.0 |
| 2019 Q4 | 1,368 | 0 | 0 | 0.0 |
| 2019 Q3 | 2,547 | 0 | 0 | 0.0 |
| 2019 Q2 | 1,554 | 0 | 0 | 0.0 |
| 2019 Q1 | 2,747 | 0 | 0 | 0.0 |
| 2018 Q4 | 975 | 0 | 0 | 0.0 |
| 2018 Q3 | 567 | 0 | 0 | 0.0 |
| 2018 Q2 | 2,820 | 0 | 0 | 0.0 |
| 2018 Q1 | 6,521 | 0 | 0 | 0.0 |
| 2017 Q4 | 437 | 0 | 0 | 0.0 |
| 2017 Q3 | 1,181 | 0 | 0 | 0.0 |
| 2017 Q2 | 2,638 | 0 | 0 | 0.0 |
| 2017 Q1 | 3,950 | 0 | 0 | 0.0 |
| 2016 Q4 | 1,601 | 0 | 0 | 0.0 |
| 2016 Q3 | 1 | 0 | 0 | 0.0 |
| 2016 Q2 | 873 | 0 | 0 | 0.0 |
| 2016 Q1 | 2,255 | 1 | 0 | 443.5 |
| 2015 Q4 | 744 | 0 | 0 | 0.0 |
| 2015 Q3 | 1,304 | 0 | 0 | 0.0 |
| 2015 Q2 | 1,097 | 0 | 0 | 0.0 |
| 2015 Q1 | 1 | 0 | 0 | 0.0 |
| 2014 Q4 | 63 | 0 | 0 | 0.0 |
| 2014 Q3 | 333 | 0 | 0 | 0.0 |
| 2014 Q2 | 446 | 0 | 0 | 0.0 |
| 2014 Q1 | 1 | 0 | 0 | 0.0 |
| 2013 Q4 | 238 | 0 | 0 | 0.0 |
| 2013 Q3 | 943 | 0 | 0 | 0.0 |
| 2013 Q2 | 195 | 0 | 0 | 0.0 |
| 2013 Q1 | 1 | 0 | 0 | 0.0 |
| 2012 Q4 | 3,110 | 0 | 0 | 0.0 |
| 2012 Q3 | 9,056 | 0 | 0 | 0.0 |
| 2012 Q2 | 17,831 | 0 | 0 | 0.0 |
| 2012 Q1 | 13,973 | 0 | 0 | 0.0 |
| 2011 Q4 | 12,047 | 0 | 0 | 0.0 |
| 2011 Q3 | 9,876 | 1 | 0 | 101.3 |
| 2011 Q2 | 1,553 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
3 on file2017 · 1 incident
2012 · 1 incident
Milestone Materials Division of Mathy Construction · Struck by flying object
EE apparently got something in her left eye while working in scale house weighing trucks.
2011 · 1 incident
October 24, 2011
WI · Metal/Non-Metal
bulldozer operator, universal operator, heavy equipment operator, operating engineer
POWERED HAULAGE
Milestone Materials Division of Mathy Construction · Struck against stationary object
EE climbed up into the front-end loader, his hard hat fell off, EE bent over to pick it up and struck his head on railing.
For insurers, brokers, and safety consultants
The full compliance file on Plant 80
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.