Mining Incidents

Zerbe 10 Mine Coal

Trevorton, Northumberland County, PA  ·  Active
MSHA Mine ID: 3609231

Zerbe 10 Mine has $5K in proposed MSHA penalties and $3K outstanding across 0 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 2008
42
citations
11
significant & substantial
$5,053
proposed penalties
$2,522
paid to date
50% of proposed penalties paid to date, a $2,531 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
38
inspections on record
1,064
inspection hours
3.9
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.
42 citations across 1,064 inspection hours.
Source: MSHA inspections data, updated weekly.

Zerbe 10 Mine has $5K in proposed MSHA penalties and $3K outstanding across 0 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
$3K
paid to date
$3K
outstanding
42 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

MSHA sampling at Zerbe 10 Mine shows respirable coal dust averaging 0.22 mg/m3 (97% compliant) across 60 samples.

Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.
Respirable coal dust
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
0.22
dust avg (mg/m3)
2.10
dust max (mg/m3)
97%
within 1.5 mg/m3
60
samples
Most recent sample: 2026-03-25.
Silica (quartz)
4.0
silica avg (%)
5.4
silica max (%)
3
samples
Most recent sample: 2018-11-21.
Noise
0%
over PEL
43
samples
Most recent sample: 2026-03-25.
Source: MSHA respirable dust, quartz, and noise sampling records, 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 1,078 0 0 0.0
2025 Q3 1,086 1 0 920.8
2025 Q2 1,113 0 0 0.0
2025 Q1 780 0 0 0.0
2024 Q4 880 1 0 1136.4
2024 Q3 1,012 0 0 0.0
2024 Q2 1,092 2 0 1831.5
2024 Q1 2,275 0 0 0.0
Show 44 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 2,080 4 1 1923.1
2023 Q3 2,080 0 0 0.0
2023 Q2 2,340 2 0 854.7
2020 Q4 0 0 0
2020 Q3 40 0 0 0.0
2020 Q2 240 0 0 0.0
2020 Q1 240 1 0 4166.7
2019 Q4 160 0 0 0.0
2019 Q3 0 0 0
2019 Q2 160 2 0 12500.0
2019 Q1 210 0 0 0.0
2018 Q4 210 2 0 9523.8
2018 Q3 210 1 0 4761.9
2018 Q2 210 0 0 0.0
2018 Q1 210 1 0 4761.9
2017 Q4 210 0 0 0.0
2017 Q3 210 2 0 9523.8
2017 Q2 210 0 0 0.0
2017 Q1 210 0 0 0.0
2016 Q4 210 3 1 14285.7
2016 Q3 210 0 0 0.0
2016 Q2 210 0 0 0.0
2016 Q1 140 0 0 0.0
2015 Q4 0 0 0
2015 Q3 140 0 0 0.0
2015 Q2 120 4 0 33333.3
2015 Q1 160 0 0 0.0
2014 Q4 720 2 0 2777.8
2014 Q3 480 0 0 0.0
2014 Q2 60 2 2 33333.3
2014 Q1 480 1 1 2083.3
2013 Q4 576 1 1 1736.1
2013 Q3 260 0 0 0.0
2013 Q2 240 0 0 0.0
2012 Q2 0 0 0
2010 Q2 938 0 0 0.0
2009 Q3 0 0 0
2009 Q2 0 0 0
2009 Q1 0 1 0
2008 Q4 0 0 0
2008 Q2 0 0 0
2008 Q1 0 0 0
2007 Q4 0 0 0
2004 Q2 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.

For insurers, brokers, and safety consultants

The full compliance file on Zerbe 10 Mine

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.