Portable #4 has $4K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
1
Years on record
2017
Latest incident
Dec 2017
Compliance record
MSHA citations since 2012
30
citations
6
significant & substantial
$3,582
proposed penalties
$3,582
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2012
19
inspections on record
126
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: 126 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable #4 has $4K in proposed MSHA penalties and $0 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
30 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-09-10.
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
3,400
0
0
0.0
2025 Q3
3,207
3
0
935.5
2022 Q1
682
0
0
0.0
2021 Q4
1,936
0
0
0.0
2019 Q3
287
0
0
0.0
2019 Q2
1,230
2
0
1626.0
2019 Q1
1,365
0
0
0.0
2018 Q4
1,465
1
1
682.6
Show 22 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2018 Q3
1,489
1
1
671.6
2018 Q2
2,466
0
0
0.0
2018 Q1
967
0
0
0.0
2017 Q4
929
5
1
5382.1
2017 Q3
1,436
1
1
696.4
2017 Q2
2,018
0
0
0.0
2017 Q1
1,572
0
0
0.0
2015 Q3
3,473
0
0
0.0
2015 Q2
170
0
0
0.0
2015 Q1
1,260
1
0
793.7
2014 Q4
315
0
0
0.0
2014 Q3
997
2
0
2006.0
2014 Q2
1,118
0
0
0.0
2014 Q1
1,058
0
0
0.0
2013 Q4
2,067
0
0
0.0
2013 Q3
3,535
2
0
565.8
2013 Q2
5,410
0
0
0.0
2013 Q1
5,539
1
0
180.5
2012 Q4
3,660
3
0
819.7
2012 Q3
3,656
0
0
0.0
2012 Q2
2,784
0
0
0.0
2012 Q1
320
7
2
21875.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2017 · 1 incident
December 21, 2017NM · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerHANDTOOLS (NONPOWERED)
While tightening a lug nut on the HSI crusher, the wrench slipped causing their hand to come in contact with a metal plate resulting in a fairly deep cut on the thumb of the right hand.
For insurers, brokers, and safety consultants
The full compliance file on Portable #4
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.