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Portable #110 Metal/Non-Metal

Controlled by Tom E Lien Jr
Rapid City, Pennington County, SD  ·  Active
MSHA Mine ID: 3901577

Portable #110 has $16K 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
2013
Latest incident
Mar 2013
Compliance record
MSHA citations since 2012
91
citations
18
significant & substantial
$15,830
proposed penalties
$15,830
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
42
inspections on record
508
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: 508 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 #110 has $16K 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.
$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
84 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-02-24.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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 5,737 0 0 0.0
2025 Q3 5,334 10 1 1874.8
2025 Q2 6,181 0 0 0.0
2025 Q1 6,012 2 0 332.7
2024 Q4 6,963 2 2 287.2
2024 Q3 5,807 0 0 0.0
2024 Q2 4,929 0 0 0.0
2024 Q1 6,766 3 0 443.4
Show 49 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 4,538 0 0 0.0
2023 Q3 5,206 0 0 0.0
2023 Q2 6,022 6 1 996.3
2023 Q1 4,680 3 1 641.0
2022 Q4 5,270 0 0 0.0
2022 Q3 5,332 0 0 0.0
2022 Q2 6,070 2 1 329.5
2022 Q1 4,772 1 0 209.6
2021 Q4 5,773 0 0 0.0
2021 Q3 6,207 2 0 322.2
2021 Q2 5,003 0 0 0.0
2021 Q1 3,879 0 0 0.0
2020 Q4 6,181 0 0 0.0
2020 Q3 7,443 0 0 0.0
2020 Q2 7,902 0 0 0.0
2020 Q1 5,866 1 0 170.5
2019 Q4 5,363 0 0 0.0
2019 Q3 6,438 3 0 466.0
2019 Q2 6,604 1 0 151.4
2019 Q1 3,843 3 1 780.6
2018 Q4 2,164 0 0 0.0
2018 Q3 5,061 0 0 0.0
2018 Q2 1,393 10 2 7178.8
2018 Q1 3,191 0 0 0.0
2017 Q4 3,789 1 0 263.9
2017 Q3 4,080 0 0 0.0
2017 Q2 2,472 0 0 0.0
2017 Q1 2,878 4 0 1389.9
2016 Q4 2,771 0 0 0.0
2016 Q3 3,771 0 0 0.0
2016 Q2 1,951 0 0 0.0
2016 Q1 2,147 0 0 0.0
2015 Q4 4,156 7 3 1684.3
2015 Q3 3,343 0 0 0.0
2015 Q2 3,120 2 0 641.0
2015 Q1 2,830 0 0 0.0
2014 Q4 496 0 0 0.0
2014 Q3 3,116 0 0 0.0
2014 Q2 761 0 0 0.0
2014 Q1 2,815 0 0 0.0
2013 Q4 2,219 0 0 0.0
2013 Q3 3,163 23 5 7271.6
2013 Q2 3,251 0 0 0.0
2013 Q1 2,621 0 0 0.0
2012 Q4 74 0 0 0.0
2012 Q3 763 0 0 0.0
2012 Q2 1,171 2 1 1707.9
2012 Q1 0 1 0
2011 Q3 488 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2013 · 1 incident

March 26, 2013 SD · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Western Construction, Inc. · Fall from machine

Miner was inspecting bearing on conveyor when he lost his footing, tripped and fell on the ground on his left flank/hip area and received bruises

For insurers, brokers, and safety consultants

The full compliance file on Portable #110

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.

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