PORTABLE 300 Metal/Non-Metal
JOHN J. BRENNAN CONST. CO. INC.
· Surface
Controlled by
Matthew M Brennan; Eric T Brennan
Shelton,
Fairfield County,
CT
·
Intermittent
MSHA Mine ID: 0600790
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Email me when a new MSHA incident is filed at PORTABLE 300.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2016
2
citations
0
significant & substantial
$247
proposed penalties
$247
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 | 190 | 0 | 0 | 0.0 |
| 2025 Q3 | 273 | 0 | 0 | 0.0 |
| 2025 Q2 | 0 | 0 | 0 | |
| 2025 Q1 | 149 | 0 | 0 | 0.0 |
| 2024 Q4 | 8 | 0 | 0 | 0.0 |
| 2024 Q3 | 238 | 0 | 0 | 0.0 |
| 2024 Q2 | 330 | 0 | 0 | 0.0 |
| 2024 Q1 | 0 | 1 | 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.