Billings, Yellowstone County,
MT
·
Temporarily Idled
MSHA Mine ID: 2402047
Portable #4 has $445 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
2020
Latest incident
Aug 2020
Compliance record
MSHA citations since 2024
3
citations
0
significant & substantial
$445
proposed penalties
$445
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2020
7
inspections on record
100
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: 100 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 $445 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.
$445
proposed penalties
$445
current assessed
$445
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-06-09.
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
0
0
0
2025 Q3
1,217
0
0
0.0
2025 Q2
947
1
0
1056.0
2025 Q1
0
0
0
2024 Q4
136
0
0
0.0
2024 Q3
1,127
0
0
0.0
2024 Q2
874
2
0
2288.3
2024 Q1
0
0
0
Show 49 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
702
0
0
0.0
2023 Q3
1,686
0
0
0.0
2023 Q2
861
0
0
0.0
2023 Q1
478
0
0
0.0
2022 Q4
1,283
0
0
0.0
2022 Q3
2,439
0
0
0.0
2022 Q2
1,643
0
0
0.0
2022 Q1
1,378
0
0
0.0
2021 Q4
1,364
0
0
0.0
2021 Q3
3,042
0
0
0.0
2021 Q2
2,663
0
0
0.0
2021 Q1
0
0
0
2020 Q4
0
0
0
2020 Q3
1,609
0
0
0.0
2020 Q2
1,465
0
0
0.0
2020 Q1
0
0
0
2019 Q4
1,521
0
0
0.0
2019 Q3
2,548
0
0
0.0
2019 Q2
754
0
0
0.0
2019 Q1
0
0
0
2018 Q4
0
0
0
2018 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
2017 Q2
0
0
0
2017 Q1
0
0
0
2016 Q4
244
0
0
0.0
2015 Q3
0
0
0
2015 Q2
0
0
0
2015 Q1
0
0
0
2014 Q4
0
0
0
2014 Q3
550
0
0
0.0
2013 Q3
0
0
0
2013 Q2
3,493
0
0
0.0
2013 Q1
311
0
0
0.0
2012 Q4
1,031
0
0
0.0
2012 Q3
1,215
0
0
0.0
2002 Q3
0
0
0
2002 Q2
0
0
0
2002 Q1
0
0
0
2001 Q4
0
0
0
2001 Q3
0
0
0
2001 Q2
186
0
0
0.0
2001 Q1
0
0
0
2000 Q4
0
0
0
2000 Q3
0
0
0
2000 Q2
0
0
0
2000 Q1
0
0
0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2020 · 1 incident
August 20, 2020MT · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerHANDLING OF MATERIALS
Employee was repairing the decking on a drop deck trailer upon which a generator sits. To access the decking a small transformer needed to be removed. While attempting to remove the transformer it fell striking the employee's left pinky finger lacerating it. Gloves were being worn.
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.