Mining Incidents

Portable Plant No. 1: 15 MSHA citations Metal/Non-Metal

Controlled by Pierce County-Wi
Ellsworth, Pierce County, WI  ·  Intermittent
MSHA Mine ID: 4701404

Portable Plant No. 1 has $1K 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
1988
Latest incident
Feb 1988
Compliance record
MSHA citations since 2001
15
citations
2
significant & substantial
$1,487
proposed penalties
$1,487
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
36
inspections on record
345
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: 345 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 No. 1 has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
15 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-12-03.
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.
13.3%
significant & substantial
0.0%
high negligence or reckless
13.3%
reasonably likely or greater
53.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 33.3% low, 66.7% moderate, 0.0% 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: 2019-07-11, 7 years ago
0%
of limit-tested samples over the exposure limit
15
samples
6
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg9
  • Nuisance dust, total, <1% Qtz3
  • Quartz, respirable, >1% Qtz2
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2019-07-11 Respirable dust, <.1mg 0 Crusher Oper/Worker
2019-07-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-03-25 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
2010-03-25 Quartz, respirable, >1% Qtz 0.14 1.14 0.12 Crusher Oper/Worker
2008-10-22 Quartz, respirable, >1% Qtz 1.42 2.35 0.60 Drill Operator, Rotary Air
2005-02-16 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Crusher Oper/Worker
2005-02-16 Respirable dust, <.1mg 0 Supervisor, Co. Official
2005-02-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-03-09 Nuisance dust, total, <1% Qtz 0.3 10 0.03 Backhoe Operator
2004-03-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Crusher Oper/Worker
2004-03-09 Nuisance dust, total, <1% Qtz 0 10 0.00 Crusher Oper/Worker
2003-05-14 Respirable dust, <.1mg 0 Crusher Oper/Worker
2003-05-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-05-14 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. Pierce County Highway Dept. 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 4
2022 3
2021 3
2020 3
2019 4
2018 4
2017 4
2016 4
2015 5
2014 5
2013 5
2012 5
2011 4
2010 4
2009 3
2008 3
2007 3
2006 4
2005 4
2004 4
2003 5
2002 6
2001 5
2000 6
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant No. 1 sits in Pierce County, Wisconsin, 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.
Pierce County, Wisconsin · Population 42,351
0.1%
Mining share of county employment
$88,802
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 279 0 0 0.0
2026 Q1 990 0 0 0.0
2025 Q4 471 0 0 0.0
2025 Q3 177 0 0 0.0
2025 Q2 275 0 0 0.0
2025 Q1 1,383 0 0 0.0
2024 Q4 771 0 0 0.0
2024 Q3 51 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 127 0 0 0.0
2024 Q1 1,303 0 0 0.0
2023 Q4 475 0 0 0.0
2023 Q3 312 0 0 0.0
2023 Q2 392 0 0 0.0
2023 Q1 650 0 0 0.0
2022 Q4 214 0 0 0.0
2022 Q3 40 0 0 0.0
2022 Q2 446 0 0 0.0
2022 Q1 1,170 0 0 0.0
2021 Q4 387 0 0 0.0
2021 Q3 397 0 0 0.0
2021 Q2 30 0 0 0.0
2021 Q1 1,023 0 0 0.0
2020 Q4 1,089 2 0 1836.5
2020 Q3 10 0 0 0.0
2020 Q2 570 0 0 0.0
2020 Q1 978 0 0 0.0
2019 Q4 416 0 0 0.0
2019 Q3 959 0 0 0.0
2019 Q2 934 0 0 0.0
2019 Q1 1,125 0 0 0.0
2018 Q4 962 0 0 0.0
2018 Q3 355 0 0 0.0
2018 Q2 958 0 0 0.0
2018 Q1 846 0 0 0.0
2017 Q4 479 0 0 0.0
2017 Q3 405 0 0 0.0
2017 Q2 1,577 0 0 0.0
2017 Q1 890 0 0 0.0
2016 Q4 79 0 0 0.0
2016 Q3 5 0 0 0.0
2016 Q2 860 0 0 0.0
2016 Q1 1,662 0 0 0.0
2015 Q4 200 3 0 15000.0
2015 Q3 420 0 0 0.0
2015 Q2 563 0 0 0.0
2015 Q1 1,429 0 0 0.0
2014 Q4 1,017 0 0 0.0
2014 Q3 429 0 0 0.0
2014 Q2 648 0 0 0.0
2014 Q1 1,475 0 0 0.0
2013 Q4 412 0 0 0.0
2013 Q3 72 0 0 0.0
2013 Q2 753 1 0 1328.0
2013 Q1 1,530 0 0 0.0
2012 Q4 248 0 0 0.0
2012 Q3 184 0 0 0.0
2012 Q2 1,105 0 0 0.0
2012 Q1 1,562 0 0 0.0
2011 Q4 412 0 0 0.0
2011 Q3 58 0 0 0.0
2011 Q2 1,052 0 0 0.0
2011 Q1 2,510 2 0 796.8
2010 Q4 217 0 0 0.0
2010 Q3 141 0 0 0.0
2010 Q2 458 0 0 0.0
2010 Q1 1,117 0 0 0.0
2009 Q4 501 0 0 0.0
2009 Q3 399 0 0 0.0
2009 Q2 434 0 0 0.0
2009 Q1 713 0 0 0.0
2008 Q4 569 0 0 0.0
2008 Q3 513 0 0 0.0
2008 Q2 827 0 0 0.0
2008 Q1 1,093 0 0 0.0
2007 Q4 758 0 0 0.0
2007 Q3 633 0 0 0.0
2007 Q2 480 0 0 0.0
2007 Q1 500 0 0 0.0
2006 Q4 239 0 0 0.0
2006 Q3 325 0 0 0.0
2006 Q2 512 0 0 0.0
2006 Q1 806 0 0 0.0
2005 Q4 131 0 0 0.0
2005 Q3 870 0 0 0.0
2005 Q2 703 0 0 0.0
2005 Q1 961 0 0 0.0
2004 Q4 713 0 0 0.0
2004 Q3 1,222 0 0 0.0
2004 Q2 1,512 0 0 0.0
2004 Q1 1,747 1 0 572.4
2003 Q4 980 0 0 0.0
2003 Q3 1,347 0 0 0.0
2003 Q2 2,081 1 0 480.5
2003 Q1 2,961 0 0 0.0
2002 Q4 841 0 0 0.0
2002 Q3 1,981 0 0 0.0
2002 Q2 2,001 0 0 0.0
2002 Q1 2,881 0 0 0.0
2001 Q4 2,081 2 0 961.1
2001 Q3 2,160 0 0 0.0
2001 Q2 2,080 0 0 0.0
2001 Q1 2,800 0 0 0.0
2000 Q4 1,601 0 0 0.0
2000 Q3 1,921 0 0 0.0
2000 Q2 2,081 0 0 0.0
2000 Q1 2,881 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1988 · 1 incident

February 19, 1988 WI · Metal/Non-Metal ledgeman/hand, quarry man MACHINERY
Pierce County Highway Dept. · Struck by... (Not Elsewhere Classified)

OPERAOTR RACHED ACROSS A LEVER TO RELEASE IT AND AS HE PULLED THE LEVER IT SNAPPED UP AND HIT HIS LEFT ARM AND BROKE IT.