Portable Crusher Metal/Non-Metal
Bernard Mahrer Construction Inc
· Surface
Controlled by
Mitchell B Mahrer
Britton,
Marshall County,
SD
·
Intermittent
MSHA Mine ID: 3200666
Portable Crusher has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Email me when a new MSHA incident is filed at Portable Crusher.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2001
24
citations
4
significant & substantial
$2,769
proposed penalties
$2,769
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
46
inspections on record
448
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: 448 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 $3K 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.$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
24 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-11-13.
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 | 1,393 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,976 | 0 | 0 | 0.0 |
| 2025 Q2 | 639 | 0 | 0 | 0.0 |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 1,255 | 2 | 0 | 1593.6 |
| 2024 Q3 | 2,112 | 0 | 0 | 0.0 |
| 2024 Q2 | 1,372 | 1 | 0 | 728.9 |
| 2024 Q1 | 0 | 0 | 0 |
Show 96 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 1,607 | 0 | 0 | 0.0 |
| 2023 Q3 | 1,742 | 1 | 0 | 574.1 |
| 2023 Q2 | 919 | 0 | 0 | 0.0 |
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q4 | 1,057 | 0 | 0 | 0.0 |
| 2022 Q3 | 2,373 | 0 | 0 | 0.0 |
| 2022 Q2 | 742 | 0 | 0 | 0.0 |
| 2022 Q1 | 0 | 0 | 0 | |
| 2021 Q4 | 1,794 | 0 | 0 | 0.0 |
| 2021 Q3 | 3,382 | 0 | 0 | 0.0 |
| 2021 Q2 | 1,538 | 0 | 0 | 0.0 |
| 2021 Q1 | 0 | 0 | 0 | |
| 2020 Q4 | 1,326 | 0 | 0 | 0.0 |
| 2020 Q3 | 1,945 | 1 | 0 | 514.1 |
| 2020 Q2 | 518 | 0 | 0 | 0.0 |
| 2020 Q1 | 0 | 0 | 0 | |
| 2019 Q4 | 1,305 | 0 | 0 | 0.0 |
| 2019 Q3 | 1,480 | 0 | 0 | 0.0 |
| 2019 Q2 | 732 | 0 | 0 | 0.0 |
| 2019 Q1 | 0 | 0 | 0 | |
| 2018 Q4 | 2,053 | 0 | 0 | 0.0 |
| 2018 Q3 | 2,843 | 1 | 0 | 351.7 |
| 2018 Q2 | 1,590 | 0 | 0 | 0.0 |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 1,911 | 0 | 0 | 0.0 |
| 2017 Q3 | 2,604 | 0 | 0 | 0.0 |
| 2017 Q2 | 1,282 | 3 | 0 | 2340.1 |
| 2017 Q1 | 0 | 0 | 0 | |
| 2016 Q4 | 2,245 | 0 | 0 | 0.0 |
| 2016 Q3 | 3,338 | 0 | 0 | 0.0 |
| 2016 Q2 | 2,515 | 0 | 0 | 0.0 |
| 2016 Q1 | 0 | 0 | 0 | |
| 2015 Q4 | 2,853 | 0 | 0 | 0.0 |
| 2015 Q3 | 2,762 | 1 | 0 | 362.1 |
| 2015 Q2 | 2,916 | 0 | 0 | 0.0 |
| 2015 Q1 | 0 | 0 | 0 | |
| 2014 Q4 | 2,886 | 0 | 0 | 0.0 |
| 2014 Q3 | 3,877 | 1 | 0 | 257.9 |
| 2014 Q2 | 1,842 | 0 | 0 | 0.0 |
| 2014 Q1 | 0 | 0 | 0 | |
| 2013 Q4 | 1,645 | 1 | 0 | 607.9 |
| 2013 Q3 | 3,764 | 0 | 0 | 0.0 |
| 2013 Q2 | 1,235 | 0 | 0 | 0.0 |
| 2013 Q1 | 0 | 0 | 0 | |
| 2012 Q4 | 2,641 | 0 | 0 | 0.0 |
| 2012 Q3 | 4,309 | 0 | 0 | 0.0 |
| 2012 Q2 | 2,630 | 2 | 1 | 760.5 |
| 2012 Q1 | 0 | 0 | 0 | |
| 2011 Q4 | 3,653 | 0 | 0 | 0.0 |
| 2011 Q3 | 4,272 | 0 | 0 | 0.0 |
| 2011 Q2 | 1,076 | 1 | 0 | 929.4 |
| 2011 Q1 | 0 | 0 | 0 | |
| 2010 Q4 | 2,960 | 1 | 0 | 337.8 |
| 2010 Q3 | 4,409 | 0 | 0 | 0.0 |
| 2010 Q2 | 2,953 | 1 | 0 | 338.6 |
| 2010 Q1 | 0 | 0 | 0 | |
| 2009 Q4 | 2,345 | 0 | 0 | 0.0 |
| 2009 Q3 | 3,713 | 0 | 0 | 0.0 |
| 2009 Q2 | 1,827 | 0 | 0 | 0.0 |
| 2009 Q1 | 0 | 0 | 0 | |
| 2008 Q4 | 2,546 | 0 | 0 | 0.0 |
| 2008 Q3 | 3,184 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,580 | 0 | 0 | 0.0 |
| 2008 Q1 | 0 | 0 | 0 | |
| 2007 Q4 | 1,912 | 0 | 0 | 0.0 |
| 2007 Q3 | 2,650 | 0 | 0 | 0.0 |
| 2007 Q2 | 1,482 | 0 | 0 | 0.0 |
| 2007 Q1 | 0 | 0 | 0 | |
| 2006 Q4 | 1,760 | 0 | 0 | 0.0 |
| 2006 Q3 | 2,032 | 0 | 0 | 0.0 |
| 2006 Q2 | 1,341 | 0 | 0 | 0.0 |
| 2006 Q1 | 0 | 0 | 0 | |
| 2005 Q4 | 1,041 | 0 | 0 | 0.0 |
| 2005 Q3 | 1,410 | 0 | 0 | 0.0 |
| 2005 Q2 | 1,063 | 0 | 0 | 0.0 |
| 2005 Q1 | 0 | 0 | 0 | |
| 2004 Q4 | 1,718 | 0 | 0 | 0.0 |
| 2004 Q3 | 1,625 | 0 | 0 | 0.0 |
| 2004 Q2 | 1,807 | 3 | 0 | 1660.2 |
| 2004 Q1 | 145 | 0 | 0 | 0.0 |
| 2003 Q4 | 1,874 | 0 | 0 | 0.0 |
| 2003 Q3 | 2,276 | 0 | 0 | 0.0 |
| 2003 Q2 | 2,001 | 1 | 0 | 499.8 |
| 2003 Q1 | 0 | 0 | 0 | |
| 2002 Q4 | 1,451 | 0 | 0 | 0.0 |
| 2002 Q3 | 1,922 | 0 | 0 | 0.0 |
| 2002 Q2 | 1,240 | 0 | 0 | 0.0 |
| 2002 Q1 | 0 | 0 | 0 | |
| 2001 Q4 | 1,303 | 0 | 0 | 0.0 |
| 2001 Q3 | 1,892 | 0 | 0 | 0.0 |
| 2001 Q2 | 1,284 | 3 | 3 | 2336.4 |
| 2001 Q1 | 0 | 0 | 0 | |
| 2000 Q4 | 888 | 0 | 0 | 0.0 |
| 2000 Q3 | 2,067 | 0 | 0 | 0.0 |
| 2000 Q2 | 1,886 | 0 | 0 | 0.0 |
| 2000 Q1 | 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.
For insurers, brokers, and safety consultants
The full compliance file on Portable Crusher
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.