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Portable: 3 MSHA citations Metal/Non-Metal

Rivard Stone, Inc. · Surface
Independence, St Croix County, WI  ·  Intermittent
MSHA Mine ID: 4703347

Portable has $376 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
2007
Latest incident
Apr 2007
Compliance record
MSHA citations since 2007
3
citations
0
significant & substantial
$376
proposed penalties
$376
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
26
inspections on record
192
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: 192 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 has $376 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.
$376
proposed penalties
$376
current assessed
$376
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-06-27.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
33.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% 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: 2023-06-28, 3 years ago
4
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-06-28 Respirable dust, <.1mg 0 Backhoe Operator
2023-06-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2017-05-24 Respirable dust, <.1mg 0 Backhoe Operator
2011-07-20 Respirable dust, <.1mg 0 Drill Operator, Rotary
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. Rivard Stone, Inc. 2003 to 2015
  2. Rivard Stone, Inc. 2015 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 1
2024 1
2023 2
2022 1
2021 2
2020 1
2019 1
2018 2
2017 2
2016 2
2015 1
2014 1
2013 1
2012 1
2011 1
2010 1
2009 2
2008 3
2007 4
2006 4
2005 3
2004 3
2003 4
Source: MSHA quarterly employment and production, updated weekly.

Portable sits in St. Croix 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.
St. Croix County, Wisconsin · Population 94,819
0.1%
Mining share of county employment
$102,482
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 Q1 0 0 0
2025 Q4 180 0 0 0.0
2025 Q3 870 0 0 0.0
2025 Q2 0 0 0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 426 0 0 0.0
2024 Q2 191 0 0 0.0
Show 84 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 0 0 0
2023 Q4 595 0 0 0.0
2023 Q3 998 0 0 0.0
2023 Q2 690 1 0 1449.3
2023 Q1 0 0 0
2022 Q4 417 0 0 0.0
2022 Q3 1,106 1 0 904.2
2022 Q2 0 0 0
2022 Q1 0 0 0
2021 Q4 860 0 0 0.0
2021 Q3 929 0 0 0.0
2021 Q2 1,068 0 0 0.0
2021 Q1 0 0 0
2020 Q4 350 0 0 0.0
2020 Q3 561 0 0 0.0
2020 Q2 200 0 0 0.0
2020 Q1 0 0 0
2019 Q4 275 0 0 0.0
2019 Q3 477 0 0 0.0
2019 Q2 192 0 0 0.0
2019 Q1 0 0 0
2018 Q4 453 0 0 0.0
2018 Q3 1,255 0 0 0.0
2018 Q2 1,020 0 0 0.0
2018 Q1 0 0 0
2017 Q4 596 0 0 0.0
2017 Q3 940 0 0 0.0
2017 Q2 934 0 0 0.0
2017 Q1 0 0 0
2016 Q4 266 0 0 0.0
2016 Q3 867 0 0 0.0
2016 Q2 565 0 0 0.0
2016 Q1 0 0 0
2015 Q4 0 0 0
2015 Q3 600 0 0 0.0
2015 Q2 416 0 0 0.0
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 711 0 0 0.0
2014 Q2 610 0 0 0.0
2014 Q1 0 0 0
2013 Q4 451 0 0 0.0
2013 Q3 855 0 0 0.0
2013 Q2 483 0 0 0.0
2013 Q1 0 0 0
2012 Q4 465 0 0 0.0
2012 Q3 544 0 0 0.0
2012 Q2 514 0 0 0.0
2012 Q1 0 0 0
2011 Q4 375 0 0 0.0
2011 Q3 508 0 0 0.0
2011 Q2 267 0 0 0.0
2011 Q1 0 0 0
2010 Q4 320 0 0 0.0
2010 Q3 508 0 0 0.0
2010 Q2 483 0 0 0.0
2010 Q1 0 0 0
2009 Q4 284 0 0 0.0
2009 Q3 469 0 0 0.0
2009 Q2 295 0 0 0.0
2009 Q1 2 0 0 0.0
2008 Q4 761 0 0 0.0
2008 Q3 1,045 0 0 0.0
2008 Q2 768 0 0 0.0
2008 Q1 0 0 0
2007 Q4 893 1 0 1119.8
2007 Q3 1,062 0 0 0.0
2007 Q2 1,045 0 0 0.0
2007 Q1 110 0 0 0.0
2006 Q4 668 0 0 0.0
2006 Q3 1,115 0 0 0.0
2006 Q2 976 0 0 0.0
2006 Q1 116 0 0 0.0
2005 Q4 356 0 0 0.0
2005 Q3 660 0 0 0.0
2005 Q2 709 0 0 0.0
2005 Q1 44 0 0 0.0
2004 Q4 1,092 0 0 0.0
2004 Q3 999 0 0 0.0
2004 Q2 1,024 0 0 0.0
2004 Q1 17 0 0 0.0
2003 Q4 887 0 0 0.0
2003 Q3 995 0 0 0.0
2003 Q2 808 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2007 · 1 incident

April 5, 2007 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Rivard Stone, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was drilling rock and as he pulled the drill bit out of the rock he felt a pain in his shoulder area.