Plant #55 Metal/Non-Metal

Milestone Materials Div/Mathy Construction · Surface

Controlled by Mathy Construction Company

Zumbro Fall, Jackson County, MN · Intermittent

MSHA Mine ID: 4703194

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Compliance record

MSHA citations since 2002

citations

significant & substantial

$1,486

proposed penalties

$1,486

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	Per 1M hrs
2025 Q4	539	0	0.0
2025 Q3	1,151	2	1737.6
2025 Q2	0	0
2024 Q3	0	0
2024 Q2	0	0
2024 Q1	0	0
2023 Q3	773	0	0.0
2023 Q2	749	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

1 on file

April 21, 2015 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON

Milestone Materials Div/Mathy Construction · Over-exertion (Not Elsewhere Classified)

Climbing rear steps of loader to add antifreeze to radiator. Twisted right knee while climbing steps. Operator felt that he only had a minor strain.