Mining Incidents

Portable Plant - CEC Screener: 17 MSHA citations Metal/Non-Metal

Don Loken Drainage, Inc. · Surface
Owatonna, Steele County, MN  ·  Intermittent
MSHA Mine ID: 2103567

Portable Plant - CEC Screener has $2K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2008
17
citations
1
significant & substantial
$1,870
proposed penalties
$1,870
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
25
inspections on record
169
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: 169 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 - CEC Screener has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
17 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-07-14.
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.
5.9%
significant & substantial
5.9%
high negligence or reckless
5.9%
reasonably likely or greater
29.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.9% low, 88.2% moderate, 5.9% 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: 2025-11-05
4
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-11-05 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-09-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-09-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-06-02 Respirable dust, <.1mg 0 Front-end Loader 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. Don Loken Drainage, Inc. 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 2
2023 2
2022 2
2021 1
2020 2
2019 1
2018 2
2017 2
2016 2
2015 1
2014 2
2013 2
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant - CEC Screener sits in Steele County, Minnesota, where the Census mining category is 0.1% 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.
Steele County, Minnesota · Population 37,413
0.1%
Mining share of county employment
$83,448
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 41 0 0 0.0
2026 Q1 0 0 0
2025 Q4 100 0 0 0.0
2025 Q3 289 1 0 3460.2
2025 Q2 51 0 0 0.0
2025 Q1 0 0 0
2024 Q4 52 0 0 0.0
2024 Q3 53 0 0 0.0
Show 63 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 41 0 0 0.0
2023 Q4 95 0 0 0.0
2023 Q3 83 0 0 0.0
2023 Q2 1 0 0 0.0
2022 Q4 50 0 0 0.0
2022 Q3 1 0 0 0.0
2022 Q2 146 0 0 0.0
2021 Q4 1 0 0 0.0
2021 Q3 53 0 0 0.0
2021 Q2 1 0 0 0.0
2020 Q3 107 2 0 18691.6
2020 Q2 151 0 0 0.0
2019 Q4 0 0 0
2019 Q3 171 0 0 0.0
2019 Q2 80 0 0 0.0
2019 Q1 0 0 0
2018 Q4 26 2 0 76923.1
2018 Q3 29 0 0 0.0
2018 Q2 16 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 1 0 0 0.0
2017 Q3 85 0 0 0.0
2017 Q2 295 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 3 0 0 0.0
2016 Q3 33 0 0 0.0
2016 Q2 12 1 0 83333.3
2016 Q1 1 0 0 0.0
2015 Q4 1 0 0 0.0
2015 Q3 1 0 0 0.0
2015 Q2 1 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 3 0 0 0.0
2014 Q3 11 0 0 0.0
2014 Q2 139 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 2 0 0 0.0
2013 Q3 162 1 0 6172.8
2013 Q2 122 0 0 0.0
2013 Q1 3 0 0 0.0
2012 Q4 1 1 0 1000000.0
2012 Q3 22 3 0 136363.6
2012 Q2 54 0 0 0.0
2012 Q1 1 0 0 0.0
2011 Q4 233 0 0 0.0
2011 Q3 437 0 0 0.0
2011 Q2 365 1 0 2739.7
2011 Q1 1 0 0 0.0
2010 Q4 17 0 0 0.0
2010 Q3 57 0 0 0.0
2010 Q2 97 0 0 0.0
2010 Q1 1 0 0 0.0
2009 Q4 6 0 0 0.0
2009 Q3 243 3 1 12345.7
2009 Q2 23 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 9 0 0 0.0
2008 Q3 567 0 0 0.0
2008 Q2 16 1 0 62500.0
2008 Q1 1 0 0 0.0
2007 Q4 25 0 0 0.0
2007 Q3 29 0 0 0.0
2007 Q2 14 0 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.