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Ottertail Aggregate #1 Metal/Non-Metal

Ottertail Aggregate Inc · Surface

Controlled by Michael J Ahlfs; Tom J Ahlfs

Ottertail, Otter Tail County, MN · Intermittent

MSHA Mine ID: 2103142

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Email me when a new MSHA incident is filed at Ottertail Aggregate #1.

Fatalities: 0
Total incidents: 2
Years on record: 2002–2006
Latest incident: Sep 2006

Compliance record

MSHA citations since 2001

citations

significant & substantial

$1,187

proposed penalties

$1,187

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	S&S	Per 1M hrs
2025 Q4	68	0	0	0.0
2025 Q3	2	0	0	0.0
2025 Q2	2	0	0	0.0
2024 Q4	126	0	0	0.0
2024 Q2	122	0	0	0.0
2024 Q1	2	0	0	0.0
2023 Q4	34	0	0	0.0
2023 Q3	31	0	0	0.0

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

No fatalities recorded at this mine.

Reportable incidents

2 on file

2006 · 1 incident

September 27, 2006 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER

Ottertail Aggregate Inc · Struck by flying object

Working on the crusher and the wind blew dirt into face and eyes.

2002 · 1 incident

September 5, 2002 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS

James E Ahlfs Const · Over-exertion (Not Elsewhere Classified)

EE WAS SHOVELING ROCKS OFF OF THE CRUSHER AND APPEARS TO HAVE SPRAINED OR STRAINED HIS BACK.