Key Takeaway
Plant #45 is a active surface mine producing Stone, located in Plain, Sauk County, WI. It has 35 violations on record (5 S&S) and $6K in proposed penalties. Operated by Milestone Materials Div/Mathy Construction Co.
Plant #45
Operator: Milestone Materials Div/Mathy Construction Co
Controller: Mathy Construction Company
Location: Plain, Sauk County, WI
Employees: 4
Recent Violations
View all 35 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 06/06/2019 | 56.5001(a)/.5005 | Non-S&S | HighNegligence | $250 |
| 06/06/2019 | 56.5001(a)/.5005 | Non-S&S | HighNegligence | $250 |
| 06/06/2019 | 56.5001(a)/.5005 | Non-S&S | HighNegligence | $250 |
| 06/05/2019 | 56.14107(a) | Non-S&S | ModNegligence | $121 |
| 03/21/2019 | 56.12004 | Non-S&S | ModNegligence | $121 |
| 03/19/2019 | 56.14105 | S&S | LowNegligence | $121 |
| 03/19/2019 | 56.12004 | Non-S&S | LowNegligence | $121 |
| 09/12/2018 | 56.14100(b) | Non-S&S | LowNegligence | $121 |
| 04/19/2017 | 56.14130(i) | S&S | ModNegligence | $330 |
| 04/19/2017 | 56.14206(b) | Non-S&S | HighNegligence | $116 |
| 04/30/2015 | 56.12018 | Non-S&S | ModNegligence | $100 |
| 04/30/2015 | 56.14132(b)(1) | S&S | ModNegligence | $100 |
| 12/18/2012 | 56.14132(b)(1) | S&S | LowNegligence | $108 |
| 12/18/2012 | 56.9300(a) | Non-S&S | LowNegligence | $100 |
| 11/08/2011 | 56.14107(a) | Non-S&S | ModNegligence | $100 |
| 03/16/2010 | 56.4501 | Non-S&S | LowNegligence | $100 |
| 07/08/2009 | 56.14107(a) | S&S | ModNegligence | $100 |
| 07/08/2009 | 56.3200 | Non-S&S | ModNegligence | $2,341 |
| 07/08/2009 | Non-S&S | $0 | ||
| 11/19/2008 | 56.16005 | Non-S&S | LowNegligence | $100 |
Accidents & Injuries
View all 17 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 10/13/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 2d lost |
| 09/22/2023 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/13/2022 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/03/2018 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 2d restricted |
| 04/11/2018 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/22/2016 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 1d lost |
| 07/06/2015 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 23d restricted |
| 08/24/2011 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 7d restricted |
| 05/31/2011 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/17/2010 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 44 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/23/2025 | 10/28/2025 | 14.00 | 1 |
| 09/16/2025 | 09/17/2025 | 11.00 | 1 |
| 01/28/2025 | 01/28/2025 | 10.00 | 2 |
| 04/16/2024 | 04/17/2024 | 20.00 | 1 |
| 03/27/2023 | 03/28/2023 | 22.25 | 1 |
| 11/16/2022 | 11/22/2022 | 31.00 | 1 |
| 10/12/2021 | 10/13/2021 | 15.25 | 1 |
| 10/29/2020 | 10/29/2020 | 18.75 | 1 |
| 06/24/2020 | 06/24/2020 | 14.00 | 1 |
| 05/20/2020 | 05/20/2020 | 2.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Plant #45 have?
Plant #45 has 35 MSHA violations on record, of which 5 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $6K.
What type of mine is Plant #45?
Plant #45 is a Surface mine producing Stone, located in Plain, Sauk County, WI. It currently has 4 employees.
Has anyone been injured or killed at Plant #45?
According to MSHA records, Plant #45 has 17 reported accident/injury records and 0 fatalities on file.
Who operates Plant #45?
Plant #45 is operated by Milestone Materials Div/Mathy Construction Co and controlled by Mathy Construction Company. MSHA Mine ID: 4702874.