Superior Wash Plant Metal/Non-Metal
Superior Sand & Gravel, Inc.
· Surface
Controlled by
David Mattila; Lisa Mattila
Hancock, MI,
Houghton County,
MI
·
Intermittent
MSHA Mine ID: 2001047
Watch this mine
Email me when a new MSHA incident is filed at Superior Wash Plant.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2001
28
citations
2
significant & substantial
$3,326
proposed penalties
$3,326
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 | 318 | 0 | 0 | 0.0 |
| 2025 Q3 | 389 | 0 | 0 | 0.0 |
| 2025 Q2 | 214 | 0 | 0 | 0.0 |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 374 | 0 | 0 | 0.0 |
| 2024 Q3 | 367 | 0 | 0 | 0.0 |
| 2024 Q2 | 253 | 0 | 0 | 0.0 |
| 2024 Q1 | 50 | 0 | 0 | 0.0 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.