Key Takeaway

Hamilton Quarry is a active surface mine producing Stone, located in Byron, WI, Fond Du Lac County, WI. It has 13 violations on record (1 S&S) and $1K in proposed penalties. Operated by Halquist Stone Company Inc.

Hamilton Quarry

Active Surface Stone

Operator: Halquist Stone Company Inc

Controller: Tom Halquist; Bill Halquist

Location: Byron, WI, Fond Du Lac County, WI

Employees: 42

13
Violations
1
S&S Violations
24
Accidents
$1K
Penalties

Recent Violations

View all 13 →
Date Section S&S Negligence Penalty
02/10/2026 56.14211(a) S&S ModNegligence $0
02/10/2026 56.14100(c) Non-S&S ModNegligence $0
12/05/2024 56.12025 Non-S&S LowNegligence $147
04/09/2024 56.14100(b) Non-S&S ModNegligence $147
04/09/2024 56.14100(c) Non-S&S ModNegligence $147
08/17/2023 56.14207 Non-S&S ModNegligence $143
06/09/2022 56.14100(c) Non-S&S ModNegligence $133
05/06/2022 50.20-1 Non-S&S ModNegligence $133
05/06/2022 50.20-1 Non-S&S ModNegligence $133
12/15/2021 56.14107(a) Non-S&S LowNegligence $133
10/29/2018 56.14132(a) Non-S&S ModNegligence $118
10/28/2018 56.14101(a)(2) Non-S&S ModNegligence $118
08/27/2014 56.18002(b) Non-S&S HighNegligence $100

Accidents & Injuries

View all 24 →
Date Classification Injury Days Lost
02/05/2026 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
06/24/2025 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 32d restricted
04/29/2025 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 51d lost, 20d restricted
11/14/2024 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 8d restricted
08/12/2024 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
06/24/2024 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 9d restricted
01/18/2024 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 4d restricted
11/02/2023 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 11d restricted
06/06/2023 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 6d restricted
02/28/2023 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 30d restricted

Inspections

View all 23 →
Begin End Hours Inspectors
02/09/2026 02/11/2026 28.50 1
09/03/2025 09/03/2025 10.50 1
12/04/2024 12/06/2024 15.75 1
04/08/2024 04/09/2024 17.75 1
01/22/2024 01/23/2024 17.25 1
08/17/2023 08/17/2023 12.25 1
01/10/2023 01/10/2023 4.75 1
06/13/2022 06/13/2022 8.50 1
06/09/2022 06/09/2022 14.00 1
05/05/2022 05/06/2022 4.25 1

Mine Details

MSHA Mine ID4703664
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionDimension Limestone
Employees42
Days/Week5.0
Hours/Shift10.0
Coordinates43.6997220, -88.4400000
Nearest TownByron, WI

Frequently Asked Questions

How many MSHA violations does Hamilton Quarry have?

Hamilton Quarry has 13 MSHA violations on record, of which 1 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1K.

What type of mine is Hamilton Quarry?

Hamilton Quarry is a Surface mine producing Stone, located in Byron, WI, Fond Du Lac County, WI. It currently has 42 employees.

Has anyone been injured or killed at Hamilton Quarry?

According to MSHA records, Hamilton Quarry has 24 reported accident/injury records and 0 fatalities on file.

Who operates Hamilton Quarry?

Hamilton Quarry is operated by Halquist Stone Company Inc and controlled by Tom Halquist; Bill Halquist. MSHA Mine ID: 4703664.