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Portable Crusher: 88 MSHA citations Metal/Non-Metal

Langdon, Cavalier County, ND  ·  Intermittent
MSHA Mine ID: 3200784

Portable Crusher has $71K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2010
Latest incident
Jul 2010
Compliance record
MSHA citations since 2000
88
citations
38
significant & substantial
$71,377
proposed penalties
$36,877
paid to date
52% of proposed penalties paid to date, a $34,500 gap.
Source: MSHA violations data, updated weekly.
See Mikkelsen Brothers Construction Company's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
39
inspections on record
447
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: 447 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 Crusher has $71K in proposed MSHA penalties and $0 outstanding across 1 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.
$71K
proposed penalties
$37K
current assessed
$37K
paid to date
$0
outstanding
88 assessments are final orders; 1 contested dockets.
Of $52K in penalties contested before the Commission, $18K was upheld in final decisions.
As of the most recent assessment on 2025-05-21.
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.
43.2%
significant & substantial
13.6%
high negligence or reckless
43.2%
reasonably likely or greater
52.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 3.4% low, 83.0% moderate, 13.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘ Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
1 citations taken to the federal commission · 1% of citations on record
  • Settled 1 · 100%
100%
S&S designation survived the contest
ⓘ Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1 decided S&S contests · industry: 79%
66%
Penalty reduction in decided contests
$52K proposed, $18K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2011-02-22.
Contested penalties
ⓘ A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2011-455M Settlement Tureck 2013 $52K → $18K
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2018-06-06, 8 years ago
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2018-06-06 Respirable dust, <.1mg 0 Crusher Oper/Worker
2018-06-06 Respirable dust, <.1mg 0 Crusher Oper/Worker
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. Mikkelsen Brothers Construction Company 2000 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 2
2023 1
2022 1
2021 1
2020 1
2019 0
2018 1
2017 2
2016 1
2012 0
2011 1
2010 2
2009 2
2008 1
2007 2
2006 1
2005 2
2004 2
2003 2
2002 2
2001 2
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Portable Crusher sits in Cavalier County, North Dakota, 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.
Cavalier County, North Dakota · Population 3,663
0.1%
Mining share of county employment
$67,064
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 415 0 0 0.0
2026 Q1 0 0 0
2025 Q4 82 0 0 0.0
2025 Q3 520 0 0 0.0
2025 Q2 340 1 0 2941.2
2025 Q1 0 0 0
2024 Q4 44 0 0 0.0
2024 Q3 424 0 0 0.0
Show 83 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 386 0 0 0.0
2024 Q1 0 0 0
2023 Q4 0 0 0
2023 Q3 506 3 1 5928.9
2023 Q2 302 0 0 0.0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 364 0 0 0.0
2022 Q2 220 4 1 18181.8
2022 Q1 0 1 0
2021 Q4 0 0 0
2021 Q3 100 13 12 130000.0
2021 Q2 560 1 0 1785.7
2021 Q1 0 0 0
2020 Q4 0 0 0
2020 Q3 394 0 0 0.0
2020 Q2 204 2 1 9803.9
2020 Q1 0 0 0
2019 Q4 0 0 0
2019 Q3 0 0 0
2019 Q2 0 0 0
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 508 0 0 0.0
2018 Q2 890 3 0 3370.8
2018 Q1 0 0 0
2017 Q4 302 0 0 0.0
2017 Q3 428 0 0 0.0
2017 Q2 240 0 0 0.0
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 892 0 0 0.0
2016 Q2 164 0 0 0.0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 0 0 0
2012 Q1 0 0 0
2011 Q4 0 0 0
2011 Q3 635 0 0 0.0
2011 Q2 850 20 7 23529.4
2011 Q1 0 0 0
2010 Q4 425 2 0 4705.9
2010 Q3 1,231 1 1 812.3
2010 Q2 730 1 0 1369.9
2010 Q1 0 1 0
2009 Q4 625 0 0 0.0
2009 Q3 852 2 2 2347.4
2009 Q2 837 0 0 0.0
2009 Q1 0 0 0
2008 Q4 0 1 0
2008 Q3 820 0 0 0.0
2008 Q2 250 0 0 0.0
2008 Q1 0 0 0
2007 Q4 1,280 0 0 0.0
2007 Q3 1,450 0 0 0.0
2007 Q2 1,750 3 0 1714.3
2007 Q1 0 0 0
2006 Q4 0 0 0
2006 Q3 700 0 0 0.0
2006 Q2 1,350 0 0 0.0
2006 Q1 0 0 0
2005 Q4 960 0 0 0.0
2005 Q3 1,750 0 0 0.0
2005 Q2 1,000 0 0 0.0
2005 Q1 0 0 0
2004 Q4 1,100 0 0 0.0
2004 Q3 1,900 9 2 4736.8
2004 Q2 1,300 0 0 0.0
2004 Q1 0 0 0
2003 Q4 650 0 0 0.0
2003 Q3 2,500 0 0 0.0
2003 Q2 480 0 0 0.0
2003 Q1 0 0 0
2002 Q4 670 0 0 0.0
2002 Q3 1,400 2 1 1428.6
2002 Q2 250 0 0 0.0
2002 Q1 0 0 0
2001 Q4 958 0 0 0.0
2001 Q3 1,950 1 1 512.8
2001 Q2 700 0 0 0.0
2001 Q1 0 0 0
2000 Q4 1,443 0 0 0.0
2000 Q3 1,060 17 9 16037.7
No fatalities recorded at this mine.

Reportable incidents

1 on file

2010 · 1 incident

July 8, 2010 ND · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Mikkelsen Brothers Construction Company · Caught in, under or between running or meshing objects

Employee was cleaning up for the day-he heard a roller squeaking-reached up to see if running hot and got his hand caught and pulled it out.