Mining Incidents

O'Brien & Sons Metal/Non-Metal

O'Brien & Sons · Surface
Controlled by Charles S O'Brien
Brownsillve, Piscataquis County, ME  ·  Intermittent
MSHA Mine ID: 1700968

O'Brien & Sons has $5K in proposed MSHA penalties and $2K outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2015
34
citations
10
significant & substantial
$4,754
proposed penalties
$2,416
paid to date
51% of proposed penalties paid to date, a $2,338 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
9
inspections on record
179
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 179 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

O'Brien & Sons has $5K in proposed MSHA penalties and $2K outstanding across 1 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$5K
proposed penalties
$5K
current assessed
$2K
paid to date
$2K
outstanding
34 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2024-11-14.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 150 0 0 0.0
2025 Q3 104 0 0 0.0
2025 Q2 117 0 0 0.0
2025 Q1 33 0 0 0.0
2024 Q4 40 2 0 50000.0
2024 Q3 104 0 0 0.0
2024 Q2 96 0 0 0.0
2024 Q1 8 0 0 0.0
Show 24 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 246 4 3 16260.2
2023 Q3 118 0 0 0.0
2021 Q2 192 0 0 0.0
2021 Q1 40 0 0 0.0
2020 Q4 240 1 0 4166.7
2020 Q3 96 0 0 0.0
2020 Q2 520 0 0 0.0
2020 Q1 240 0 0 0.0
2019 Q4 224 5 0 22321.4
2019 Q3 360 0 0 0.0
2019 Q2 96 0 0 0.0
2019 Q1 254 0 0 0.0
2018 Q4 190 2 1 10526.3
2018 Q3 208 0 0 0.0
2018 Q2 340 0 0 0.0
2018 Q1 124 0 0 0.0
2017 Q4 360 2 1 5555.6
2017 Q3 520 1 0 1923.1
2017 Q2 320 0 0 0.0
2017 Q1 120 0 0 0.0
2016 Q4 435 5 0 11494.3
2016 Q3 72 0 0 0.0
2016 Q2 89 0 0 0.0
2016 Q1 136 0 0 0.0

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.

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The full compliance file on O'Brien & Sons

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.