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John F Kamph
Controller
MSHA Controller ID: M35086
Fatalities
0
Total incidents
2
Mines on record
2
Period
—
Top causes
HANDTOOLS (NONPOWERED)
1 non-fatal
MACHINERY
1 non-fatal
Incident timeline
2026
1
2023
1
Operators under this controller
Kamph Rock Crushing Co. Inc.
2
Mines on record
Bowyer Quarry
OR
Amity Rd. Quarry
OR