Key Takeaway

Portable Plant #5 is a intermittent surface mine producing Stone, located in Janesville, Rock County, WI. It has 5 violations on record (1 S&S) and $837 in proposed penalties. Operated by Bjoin Limestone Inc..

Portable Plant #5

Intermittent Surface Stone

Operator: Bjoin Limestone Inc.

Controller: Kristopher P Bjoin; Shaun M Bjoin; Jonathan M Bjoin

Location: Janesville, Rock County, WI

Employees: 2

5
Violations
1
S&S Violations
0
Accidents
$837
Penalties

Recent Violations

View all 5 →
Date Section S&S Negligence Penalty
05/24/2023 56.3131 S&S ModNegligence $346
05/24/2023 47.44(b) Non-S&S LowNegligence $143
05/31/2017 56.12004 Non-S&S LowNegligence $116
05/31/2017 56.12004 Non-S&S LowNegligence $116
05/31/2017 56.12004 Non-S&S LowNegligence $116

Inspections

View all 11 →
Begin End Hours Inspectors
09/08/2025 09/09/2025 3.00 1
08/29/2024 08/29/2024 6.50 1
05/24/2023 05/24/2023 8.50 1
08/25/2022 08/25/2022 11.50 1
07/19/2021 07/19/2021 2.00 1
09/10/2020 09/10/2020 3.00 1
08/28/2019 08/28/2019 11.75 1
08/27/2019 08/27/2019 4.50 1
02/14/2018 02/14/2018 7.75 1
05/31/2017 06/01/2017 11.00 1

Mine Details

MSHA Mine ID4703788
Mine TypeSurface
StatusIntermittent
CommodityStone
SIC DescriptionDimension Limestone
Employees2
Days/Week5.0
Hours/Shift8.0
Coordinates42.6725000, -89.1455560
Nearest TownJanesville

Frequently Asked Questions

How many MSHA violations does Portable Plant #5 have?

Portable Plant #5 has 5 MSHA violations on record, of which 1 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $837.

What type of mine is Portable Plant #5?

Portable Plant #5 is a Surface mine producing Stone, located in Janesville, Rock County, WI. It currently has 2 employees.

Has anyone been injured or killed at Portable Plant #5?

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

Who operates Portable Plant #5?

Portable Plant #5 is operated by Bjoin Limestone Inc. and controlled by Kristopher P Bjoin; Shaun M Bjoin; Jonathan M Bjoin. MSHA Mine ID: 4703788.