SUMBERA WASH PLANT Metal/Non-Metal
Sumbera Excavating Inc
· Surface
Controlled by
Joseph Sumbera
Owosso,
Shiawassee County,
MI
·
Intermittent
MSHA Mine ID: 2003141
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2001
49
citations
15
significant & substantial
$5,471
proposed penalties
$5,471
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 | 1,450 | 3 | 1 | 2069.0 |
| 2025 Q3 | 1,800 | 1 | 0 | 555.6 |
| 2025 Q2 | 1,450 | 0 | 0 | 0.0 |
| 2025 Q1 | 900 | 0 | 0 | 0.0 |
| 2024 Q4 | 1,900 | 0 | 0 | 0.0 |
| 2024 Q3 | 2,200 | 0 | 0 | 0.0 |
| 2024 Q2 | 2,100 | 1 | 0 | 476.2 |
| 2024 Q1 | 1,210 | 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.