Michels Corporation · Struck by... (Not Elsewhere Classified)
Using improper hammer for the job, causing hammer to split and a foreign body went into left thigh.
Rib Mountain Quarry: 17 MSHA citations Metal/Non-Metal
Michels Road & Stone, Inc.
· Surface
Controlled by
M10 Inc
Merrill, WI,
Marathon County,
WI
·
Abandoned
MSHA Mine ID: 4700136
Rib Mountain Quarry has $2K in proposed MSHA penalties and $701 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 5
- Years on record
- 1986–2004
- Latest incident
- Aug 2004
Compliance record
MSHA citations since 2000
17
citations
5
significant & substantial
$2,054
proposed penalties
$1,353
paid to date
66% of proposed penalties paid to date, a $701 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
39
inspections on record
392
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: 392 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘ
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.1
Section 107(a) orders
Most recent order: 2015-05-14.
On record since 2015.
Source: MSHA imminent-danger order records, updated weekly.
Rib Mountain Quarry has $2K in proposed MSHA penalties and $701 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.$2K
proposed penalties
$2K
current assessed
$1K
paid to date
$701
outstanding
16 assessments are final orders; 1 contested dockets.
Of $100 in penalties contested before the Commission, $100 was upheld in final decisions.
As of the most recent assessment on 2021-11-03.
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.31.2%
significant & substantial
0.0%
high negligence or reckless
31.2%
reasonably likely or greater
31.2%
permanently disabling or fatal if injury occurs
Negligence coding: 6.2% none, 18.8% low, 75.0% moderate, 0.0% 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 · 6% 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%
0%
Penalty reduction in decided contests
$100 proposed, $100 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 2015-07-15.
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 |
|---|---|---|---|---|
| LAKE 2015-0581 | Settlement | Barbour | 2016 | $100 → $100 |
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: 2021-11-09, 4 years ago
ⓘ
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.0%
of limit-tested samples over the exposure limit
5
samples
4
limit-tested
Most sampled contaminants
- Nuisance dust, respirable, <1% Qtz2
- Quartz, respirable, >1% Qtz2
- Respirable dust, <.1mg1
Show the individual readings (5)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2021-11-09 | Nuisance dust, respirable, <1% Qtz | 0.46 | 10 | 0.05 | Backhoe Operator |
| 2021-11-09 | Nuisance dust, respirable, <1% Qtz | 0.23 | 10 | 0.02 | Front-end Loader Operator |
| 2001-09-27 | Quartz, respirable, >1% Qtz | 0.31 | 1.48 | 0.21 | Backhoe Operator |
| 2001-09-27 | Respirable dust, <.1mg | 0 | Drill Operator, Rotary Air | ||
| 2001-09-27 | Quartz, respirable, >1% Qtz | 0.14 | 0.93 | 0.15 | Truck Driver |
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
- Anderson Brothers & Johnson Company 1950 to 1996
- Michels Corporation 1996 to 2021
- MICHELS ROAD & STONE, INC 2021 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2025 | 0 |
| 2024 | 0 |
| 2023 | 1 |
| 2022 | 3 |
| 2021 | 3 |
| 2020 | 3 |
| 2019 | 2 |
| 2018 | 2 |
| 2017 | 3 |
| 2016 | 3 |
| 2015 | 3 |
| 2014 | 2 |
| 2013 | 2 |
| 2012 | 3 |
| 2011 | 3 |
| 2010 | 4 |
| 2009 | 4 |
| 2008 | 4 |
| 2007 | 4 |
| 2006 | 4 |
| 2005 | 3 |
| 2004 | 3 |
| 2003 | 5 |
| 2002 | 5 |
| 2001 | 4 |
| 2000 | 4 |
Source: MSHA quarterly employment and production, updated weekly.
Rib Mountain Quarry sits in Marathon 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.Marathon County, Wisconsin · Population 138,067
0.1%
Mining share of county employment
$76,185
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 |
|---|---|---|---|---|
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 0 | 0 | 0 | |
| 2024 Q3 | 0 | 0 | 0 | |
| 2024 Q2 | 0 | 0 | 0 | |
| 2024 Q1 | 0 | 0 | 0 | |
| 2023 Q4 | 0 | 0 | 0 | |
| 2023 Q3 | 0 | 0 | 0 | |
| 2023 Q2 | 1,704 | 0 | 0 | 0.0 |
Show 92 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q4 | 972 | 0 | 0 | 0.0 |
| 2022 Q3 | 1,715 | 0 | 0 | 0.0 |
| 2022 Q2 | 1,838 | 0 | 0 | 0.0 |
| 2022 Q1 | 0 | 0 | 0 | |
| 2021 Q4 | 1,490 | 1 | 0 | 671.1 |
| 2021 Q3 | 1,424 | 0 | 0 | 0.0 |
| 2021 Q2 | 1,260 | 0 | 0 | 0.0 |
| 2021 Q1 | 1,055 | 0 | 0 | 0.0 |
| 2020 Q4 | 1,448 | 1 | 0 | 690.6 |
| 2020 Q3 | 1,677 | 0 | 0 | 0.0 |
| 2020 Q2 | 2,345 | 0 | 0 | 0.0 |
| 2020 Q1 | 1,726 | 0 | 0 | 0.0 |
| 2019 Q4 | 621 | 0 | 0 | 0.0 |
| 2019 Q3 | 603 | 0 | 0 | 0.0 |
| 2019 Q2 | 923 | 0 | 0 | 0.0 |
| 2019 Q1 | 18 | 0 | 0 | 0.0 |
| 2018 Q4 | 444 | 0 | 0 | 0.0 |
| 2018 Q3 | 259 | 0 | 0 | 0.0 |
| 2018 Q2 | 1,169 | 0 | 0 | 0.0 |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 360 | 0 | 0 | 0.0 |
| 2017 Q3 | 867 | 0 | 0 | 0.0 |
| 2017 Q2 | 894 | 1 | 1 | 1118.6 |
| 2017 Q1 | 80 | 0 | 0 | 0.0 |
| 2016 Q4 | 528 | 0 | 0 | 0.0 |
| 2016 Q3 | 1,180 | 0 | 0 | 0.0 |
| 2016 Q2 | 604 | 0 | 0 | 0.0 |
| 2016 Q1 | 30 | 0 | 0 | 0.0 |
| 2015 Q4 | 1,612 | 0 | 0 | 0.0 |
| 2015 Q3 | 1,057 | 0 | 0 | 0.0 |
| 2015 Q2 | 2,219 | 1 | 1 | 450.7 |
| 2015 Q1 | 397 | 0 | 0 | 0.0 |
| 2014 Q4 | 1,151 | 0 | 0 | 0.0 |
| 2014 Q3 | 1,055 | 0 | 0 | 0.0 |
| 2014 Q2 | 833 | 1 | 0 | 1200.5 |
| 2014 Q1 | 354 | 0 | 0 | 0.0 |
| 2013 Q4 | 335 | 0 | 0 | 0.0 |
| 2013 Q3 | 312 | 0 | 0 | 0.0 |
| 2013 Q2 | 316 | 0 | 0 | 0.0 |
| 2013 Q1 | 0 | 0 | 0 | |
| 2012 Q4 | 1,559 | 0 | 0 | 0.0 |
| 2012 Q3 | 1,542 | 0 | 0 | 0.0 |
| 2012 Q2 | 513 | 0 | 0 | 0.0 |
| 2012 Q1 | 212 | 0 | 0 | 0.0 |
| 2011 Q4 | 1,787 | 0 | 0 | 0.0 |
| 2011 Q3 | 252 | 0 | 0 | 0.0 |
| 2011 Q2 | 1,076 | 0 | 0 | 0.0 |
| 2011 Q1 | 64 | 0 | 0 | 0.0 |
| 2010 Q4 | 1,402 | 0 | 0 | 0.0 |
| 2010 Q3 | 2,107 | 0 | 0 | 0.0 |
| 2010 Q2 | 776 | 0 | 0 | 0.0 |
| 2010 Q1 | 19 | 0 | 0 | 0.0 |
| 2009 Q4 | 1,509 | 0 | 0 | 0.0 |
| 2009 Q3 | 878 | 0 | 0 | 0.0 |
| 2009 Q2 | 1,341 | 2 | 0 | 1491.4 |
| 2009 Q1 | 1 | 0 | 0 | 0.0 |
| 2008 Q4 | 779 | 0 | 0 | 0.0 |
| 2008 Q3 | 1,495 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,377 | 0 | 0 | 0.0 |
| 2008 Q1 | 135 | 0 | 0 | 0.0 |
| 2007 Q4 | 480 | 0 | 0 | 0.0 |
| 2007 Q3 | 836 | 2 | 0 | 2392.3 |
| 2007 Q2 | 391 | 0 | 0 | 0.0 |
| 2007 Q1 | 406 | 0 | 0 | 0.0 |
| 2006 Q4 | 418 | 0 | 0 | 0.0 |
| 2006 Q3 | 256 | 0 | 0 | 0.0 |
| 2006 Q2 | 672 | 0 | 0 | 0.0 |
| 2006 Q1 | 98 | 0 | 0 | 0.0 |
| 2005 Q4 | 153 | 0 | 0 | 0.0 |
| 2005 Q3 | 893 | 3 | 1 | 3359.5 |
| 2005 Q2 | 73 | 0 | 0 | 0.0 |
| 2005 Q1 | 1 | 0 | 0 | 0.0 |
| 2004 Q4 | 1 | 0 | 0 | 0.0 |
| 2004 Q3 | 1,806 | 0 | 0 | 0.0 |
| 2004 Q2 | 772 | 0 | 0 | 0.0 |
| 2004 Q1 | 1 | 0 | 0 | 0.0 |
| 2003 Q4 | 374 | 1 | 0 | 2673.8 |
| 2003 Q3 | 2,434 | 0 | 0 | 0.0 |
| 2003 Q2 | 2,017 | 0 | 0 | 0.0 |
| 2003 Q1 | 584 | 0 | 0 | 0.0 |
| 2002 Q4 | 1,669 | 0 | 0 | 0.0 |
| 2002 Q3 | 1,758 | 0 | 0 | 0.0 |
| 2002 Q2 | 1,967 | 0 | 0 | 0.0 |
| 2002 Q1 | 1,456 | 0 | 0 | 0.0 |
| 2001 Q3 | 784 | 0 | 0 | 0.0 |
| 2001 Q2 | 438 | 0 | 0 | 0.0 |
| 2001 Q1 | 2,008 | 0 | 0 | 0.0 |
| 2000 Q4 | 1,731 | 1 | 0 | 577.7 |
| 2000 Q3 | 1,817 | 0 | 0 | 0.0 |
| 2000 Q2 | 621 | 0 | 0 | 0.0 |
| 2000 Q1 | 1 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
5 on file2004 · 1 incident
1993 · 1 incident
Anderson Brothers & Johnson Company · Fall to lower level, (Not Elsewhere Classified)
HE WAS DRILLING HOLES WHEN HE STEPPED BACK FROM HIS JACK HAMMER HE BACKED INTO A HOLE ABOUT 3 FEET DEEP, HE FELL OVER HITTING HIS HEAD ON STONE & SCRAP IN THIS HOLE. HE HAD CUTS TO THE TOP OF HIS HEAD & FACE, & BROKE THE BONE BELOW HIS EYE.
1992 · 1 incident
Anderson Brothers & Johnson Company · Over-exertion (Not Elsewhere Classified)
DONT KNOW WHEN INJURY WAS MADE & IS QUESTIONABLE IF WORK RELATED WAS TOLD ON 10-16-92 DID NOT KNOW IF WORK RELATED SO FORM WAS NOT FILED ON 10-22 TALKED TO WIFE SAID TO FILE WITH WORKERS COMP
1987 · 1 incident
Anderson Brothers & Johnson Company · Fall to lower level, (Not Elsewhere Classified)
THE COMPANY AS 3O RECORD OF THIS INJURY AND HAVE NO RECORD OF WHEN IT HAPPENED. PER DOCTORS RECORDS, I,NAME WAS CLIMBING OUT OF THE QUARRY AND FELL ON SOME ICE, MAINLY ON THE LEFT ELBOW.
1986 · 1 incident
Anderson Brothers & Johnson Company · Struck by falling object
SMALL ROCK FELL3FROM QUARRY WALL AND HIT I NAME ON THE HEAD. AN EMPLOYEE ON TOP OF THE QUARRY MOVED SOMETHING AND A SHALL ROCK FELL HE YELLED DOWN TO WATCH OUT AND I NAME LOOKED UP AND THE ROC K HIT HIS HARD3HAT THEN HIT HIS HEAD.