Key Takeaway

Plant #88 is a intermittent surface mine producing SandAndGravel, located in Onalaska, Dunn County, WI. It has 10 violations on record (1 S&S) and $826 in proposed penalties. Operated by Milestone Materials Division Mathy Construction.

Plant #88

Intermittent Surface SandAndGravel

Operator: Milestone Materials Division Mathy Construction

Controller: Mathy Construction Company

Location: Onalaska, Dunn County, WI

Employees: 2

10
Violations
1
S&S Violations
5
Accidents
$826
Penalties

Recent Violations

View all 10 →
Date Section S&S Negligence Penalty
06/01/2021 56.12023 Non-S&S LowNegligence $125
05/07/2018 56.12004 Non-S&S ModNegligence $118
10/07/2015 56.12025 Non-S&S ModNegligence $100
10/07/2015 56.14100(c) Non-S&S ModNegligence $100
08/29/2006 41.12 Non-S&S ModNegligence $60
08/27/2003 56.14205 Non-S&S ModNegligence $60
08/27/2003 56.12021 Non-S&S LowNegligence $60
08/27/2003 56.14107(a) Non-S&S LowNegligence $60
08/27/2003 56.9100(a) Non-S&S ModNegligence $60
08/27/2003 56.11001 S&S ModNegligence $83

Accidents & Injuries

View all 5 →
Date Classification Injury Days Lost
09/10/2014 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
11/18/2004 POWERED HAULAGE NO DYS AWY FRM WRK,NO RSTR ACT None
09/24/2002 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 1d lost, 1d restricted
08/22/2001 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
09/11/2000 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 33d restricted

Inspections

View all 24 →
Begin End Hours Inspectors
07/23/2025 07/24/2025 9.00 1
06/10/2024 06/10/2024 10.25 1
06/06/2023 06/06/2023 3.75 1
05/19/2022 05/19/2022 2.50 1
06/01/2021 06/02/2021 17.25 1
07/01/2020 07/01/2020 3.50 1
04/29/2019 04/29/2019 7.00 1
05/07/2018 05/08/2018 18.75 1
05/03/2017 05/03/2017 0.75 1
10/07/2015 10/07/2015 5.25 1

Mine Details

MSHA Mine ID4703080
Mine TypeSurface
StatusIntermittent
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees2
Days/Week5.0
Hours/Shift12.0
Coordinates43.8963890, -91.2250000
Nearest TownOnalaska

Frequently Asked Questions

How many MSHA violations does Plant #88 have?

Plant #88 has 10 MSHA violations on record, of which 1 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $826.

What type of mine is Plant #88?

Plant #88 is a Surface mine producing SandAndGravel, located in Onalaska, Dunn County, WI. It currently has 2 employees.

Has anyone been injured or killed at Plant #88?

According to MSHA records, Plant #88 has 5 reported accident/injury records and 0 fatalities on file.

Who operates Plant #88?

Plant #88 is operated by Milestone Materials Division Mathy Construction and controlled by Mathy Construction Company. MSHA Mine ID: 4703080.