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Superior Metal/Non-Metal

Rock Pros USA · Surface

Controlled by The Shepherd Family Living Trust; The Lin Irrevocable Trust

Superior, Pinal County, AZ · Active

MSHA Mine ID: 0202387

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Email me when a new MSHA incident is filed at Superior.

Fatalities: 0
Total incidents: 1
Years on record: 2017
Latest incident: Aug 2017

Compliance record

MSHA citations since 2000

129

citations

significant & substantial

$36,871

proposed penalties

$36,148

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	9,790	0	0	0.0
2025 Q3	8,670	0	0	0.0
2025 Q2	8,882	0	0	0.0
2025 Q1	8,201	0	0	0.0
2024 Q4	6,361	1	0	157.2
2024 Q3	7,324	6	2	819.2
2024 Q2	9,669	0	0	0.0
2024 Q1	7,586	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

1 on file

2017 · 1 incident

August 23, 2017 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Kalamazoo Materials Inc · Struck by falling object

EE hooked a chain to one side of a plate and the other end was connected to the excavator. The operator lifted the boom to flip the plate, EE pushed the plate with EE's hands causing slack in the chain, which slipped off the plate and landed on EE's feet.