Mining Incidents

Portable Plant: 52 MSHA citations Metal/Non-Metal

Controlled by James W Rogers
Spearfish, Lawrence County, SD  ·  Intermittent
MSHA Mine ID: 3901599

Portable Plant has $12K 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
2
Years on record
2016–2017
Latest incident
Apr 2017
Compliance record
MSHA citations since 2014
52
citations
7
significant & substantial
$12,107
proposed penalties
$12,107
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2014
27
inspections on record
314
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: 314 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 Plant has $12K 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
52 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-21.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
13.5%
significant & substantial
1.9%
high negligence or reckless
13.5%
reasonably likely or greater
40.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 32.7% low, 65.4% moderate, 1.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
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.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2025-10-22
7
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg7
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-22 Respirable dust, <.1mg 0 Bulldozer Operator
2025-02-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-02-25 Respirable dust, <.1mg 0 Cleanup Man
2025-02-25 Respirable dust, <.1mg 0 Bulldozer Operator
2019-10-23 Respirable dust, <.1mg 0 Backhoe Operator
2019-10-23 Respirable dust, <.1mg 0 Bulldozer Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Rogers Construction, Inc 2013 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 14
2025 6
2024 5
2023 0
2022 4
2021 6
2020 8
2019 8
2018 8
2017 8
2016 9
2015 8
2014 6
2013 3
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant sits in Lawrence County, South Dakota, where the Census mining category is 2.1% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Lawrence County, South Dakota · Population 26,574
2.1%
Mining share of county employment
$66,766
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2026 Q2 7,292 0 0 0.0
2026 Q1 7,286 0 0 0.0
2025 Q4 1,278 4 0 3129.9
2025 Q3 2,162 0 0 0.0
2025 Q2 2,845 0 0 0.0
2025 Q1 1,880 2 0 1063.8
2024 Q4 387 0 0 0.0
2024 Q3 403 3 0 7444.2
Show 45 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 871 0 0 0.0
2024 Q1 1,143 0 0 0.0
2023 Q4 0 0 0
2023 Q3 0 0 0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 8 0 0 0.0
2022 Q2 1,621 0 0 0.0
2022 Q1 1,471 3 1 2039.4
2021 Q4 758 0 0 0.0
2021 Q3 751 0 0 0.0
2021 Q2 729 2 0 2743.5
2021 Q1 1,970 1 1 507.6
2020 Q4 1,884 0 0 0.0
2020 Q3 2,645 1 0 378.1
2020 Q2 2,878 2 0 694.9
2020 Q1 2,212 0 0 0.0
2019 Q4 2,353 6 1 2549.9
2019 Q3 2,687 2 0 744.3
2019 Q2 2,886 0 0 0.0
2019 Q1 1,232 0 0 0.0
2018 Q4 2,440 0 0 0.0
2018 Q3 1,630 1 0 613.5
2018 Q2 1,807 1 0 553.4
2018 Q1 2,122 0 0 0.0
2017 Q4 1,957 3 2 1533.0
2017 Q3 2,184 0 0 0.0
2017 Q2 1,699 9 1 5297.2
2017 Q1 1,718 4 0 2328.3
2016 Q4 3,132 0 0 0.0
2016 Q3 2,572 0 0 0.0
2016 Q2 2,680 0 0 0.0
2016 Q1 2,730 1 0 366.3
2015 Q4 3,054 0 0 0.0
2015 Q3 2,623 0 0 0.0
2015 Q2 2,202 0 0 0.0
2015 Q1 1,826 0 0 0.0
2014 Q4 2,830 0 0 0.0
2014 Q3 3,530 7 1 1983.0
2014 Q2 447 0 0 0.0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 417 0 0 0.0
2013 Q2 2,017 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2017 · 1 incident

April 5, 2017 SD · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Rogers Construction, Inc · Fall to the walkway or working surface

Tripped over a rock or the fuel hose, EE was not sure which one. Landed on right knee on frozen gravel. EE was limping and scratched knee. EE immediately cleaned with antiseptic and covered the wound.

2016 · 1 incident

June 21, 2016 SD · Metal/Non-Metal outside foreman, leadman MACHINERY
Rogers Construction, Inc · Caught in, under or between a moving and a stationary object

Foreman and operator adjusting hydraulic controls on crusher, involves operator to run hydraulic control to lift adjusting nut. Foreman had hand placed under adjusting nut, when operator lifted hydraulic ram to loosen nut. Foreman's hand in an unsafe position, resulting in 4 fingertips on left hand to be crushed and lacerated.