Mining Incidents

Marathon Crushing Spread: 58 MSHA citations Metal/Non-Metal

Controlled by Tim Sonnentag
Marathon City, WI, Marathon County, WI  ·  Intermittent
MSHA Mine ID: 4703323

Marathon Crushing Spread has $12K in proposed MSHA penalties and $151 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
2007–2024
Latest incident
May 2024
Compliance record
MSHA citations since 2003
58
citations
10
significant & substantial
$12,139
proposed penalties
$11,988
paid to date
99% of proposed penalties paid to date, a $151 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
34
inspections on record
507
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: 507 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Marathon Crushing Spread has $12K in proposed MSHA penalties and $151 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$151
outstanding
58 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-20.
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.
17.2%
significant & substantial
1.7%
high negligence or reckless
17.2%
reasonably likely or greater
46.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.2% low, 81.0% moderate, 1.7% 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: 2025-08-13
43%
of limit-tested samples over the exposure limit
20
samples
7
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz113 over
  • Respirable dust, <.1mg9
Show the individual readings (20)
Date Contaminant Concentration Limit Conc / limit Occupation
2010-11-09 Quartz, respirable, >1% Qtz 1.91 1.36 1.40 Crusher Oper/Worker
2003-10-21 Quartz, respirable, >1% Qtz 2.02 1.14 1.77 Front-end Loader Operator
2003-10-21 Quartz, respirable, >1% Qtz 1.27 0.77 1.65 Crusher Oper/Worker
2025-08-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-10-03 Respirable dust, <.1mg 0 Crusher Oper/Worker
2023-10-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-10-03 Respirable dust, <.1mg 0 Backhoe Operator
2021-03-31 Quartz, respirable, >1% Qtz 0.13 Crusher Oper/Worker
2021-03-31 Quartz, respirable, >1% Qtz 0.14 Front-end Loader Operator
2021-03-31 Quartz, respirable, >1% Qtz 0.12 Cleanup Man
2018-04-10 Quartz, respirable, >1% Qtz 0.21 Crusher Oper/Worker
2018-04-10 Respirable dust, <.1mg 0 Crusher Oper/Worker
2018-04-10 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-04-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-04-06 Respirable dust, <.1mg 0 Crusher Oper/Worker
2016-04-06 Respirable dust, <.1mg 0 Laborer, Bullgang
2010-11-09 Quartz, respirable, >1% Qtz 0.28 1.59 0.18 Front-end Loader Operator
2005-05-25 Quartz, respirable, >1% Qtz 0.36 1.56 0.23 Front-end Loader Operator
2005-05-25 Quartz, respirable, >1% Qtz 0.74 1.25 0.59 Crusher Oper/Worker
2003-10-21 Quartz, respirable, >1% Qtz 0.47 0.73 0.64 Supervisor, Co. Official
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. County Concrete Corp. 2002 to 2005
  2. County Materials Corp 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 4
2023 3
2022 4
2021 5
2020 4
2019 3
2018 3
2017 4
2016 4
2015 5
2014 4
2013 3
2012 4
2011 4
2010 4
2009 4
2008 4
2007 5
2006 3
2005 4
2004 3
2003 4
Source: MSHA quarterly employment and production, updated weekly.

Marathon Crushing Spread 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
2026 Q2 1,176 1 0 850.3
2026 Q1 0 0 0
2025 Q4 1,541 0 0 0.0
2025 Q3 1,850 0 0 0.0
2025 Q2 30 0 0 0.0
2025 Q1 0 0 0
2024 Q4 1,833 0 0 0.0
2024 Q3 2,540 0 0 0.0
Show 85 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,785 0 0 0.0
2024 Q1 0 0 0
2023 Q4 2,591 1 0 386.0
2023 Q3 2,463 0 0 0.0
2023 Q2 2,452 0 0 0.0
2023 Q1 0 0 0
2022 Q4 1,286 0 0 0.0
2022 Q3 1,789 0 0 0.0
2022 Q2 2,030 0 0 0.0
2022 Q1 152 0 0 0.0
2021 Q4 1,387 0 0 0.0
2021 Q3 2,330 1 0 429.2
2021 Q2 2,214 0 0 0.0
2021 Q1 2,252 2 0 888.1
2020 Q4 1,644 0 0 0.0
2020 Q3 2,478 0 0 0.0
2020 Q2 1,895 0 0 0.0
2020 Q1 1,164 0 0 0.0
2019 Q4 1,514 2 1 1321.0
2019 Q3 1,663 0 0 0.0
2019 Q2 1,710 3 0 1754.4
2019 Q1 215 0 0 0.0
2018 Q4 1,720 0 0 0.0
2018 Q3 2,411 0 0 0.0
2018 Q2 1,518 1 0 658.8
2018 Q1 94 0 0 0.0
2017 Q4 1,646 0 0 0.0
2017 Q3 1,787 0 0 0.0
2017 Q2 1,797 2 1 1113.0
2017 Q1 126 0 0 0.0
2016 Q4 1,411 4 0 2834.9
2016 Q3 1,859 8 1 4303.4
2016 Q2 1,863 2 1 1073.5
2016 Q1 1,285 0 0 0.0
2015 Q4 1,418 0 0 0.0
2015 Q3 1,921 0 0 0.0
2015 Q2 1,854 2 0 1078.7
2015 Q1 838 0 0 0.0
2014 Q4 1,295 0 0 0.0
2014 Q3 747 3 0 4016.1
2014 Q2 1,750 0 0 0.0
2014 Q1 440 0 0 0.0
2013 Q4 1,465 0 0 0.0
2013 Q3 1,982 1 0 504.5
2013 Q2 1,448 0 0 0.0
2013 Q1 476 0 0 0.0
2012 Q4 1,466 0 0 0.0
2012 Q3 1,744 0 0 0.0
2012 Q2 2,015 0 0 0.0
2012 Q1 290 0 0 0.0
2011 Q4 1,087 3 0 2759.9
2011 Q3 1,234 0 0 0.0
2011 Q2 1,151 0 0 0.0
2011 Q1 743 0 0 0.0
2010 Q4 1,578 4 3 2534.9
2010 Q3 2,067 0 0 0.0
2010 Q2 1,481 0 0 0.0
2010 Q1 821 0 0 0.0
2009 Q4 991 9 1 9081.7
2009 Q3 1,863 3 0 1610.3
2009 Q2 270 0 0 0.0
2009 Q1 261 0 0 0.0
2008 Q4 1,084 0 0 0.0
2008 Q3 2,195 0 0 0.0
2008 Q2 1,228 0 0 0.0
2008 Q1 941 0 0 0.0
2007 Q4 1,737 0 0 0.0
2007 Q3 1,738 0 0 0.0
2007 Q2 1,154 0 0 0.0
2007 Q1 795 0 0 0.0
2006 Q4 462 0 0 0.0
2006 Q3 489 0 0 0.0
2006 Q2 2,817 0 0 0.0
2006 Q1 439 0 0 0.0
2005 Q4 1,725 0 0 0.0
2005 Q3 1,446 0 0 0.0
2005 Q2 2,243 1 0 445.8
2005 Q1 768 0 0 0.0
2004 Q4 1,365 0 0 0.0
2004 Q3 1,356 0 0 0.0
2004 Q2 1,571 0 0 0.0
2004 Q1 471 0 0 0.0
2003 Q4 1,688 5 2 2962.1
2003 Q3 2,057 0 0 0.0
2003 Q2 1,557 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2024 · 1 incident

May 16, 2024 WI · Metal/Non-Metal miner, prospector, nec OTHER
County Materials Corp · Struck by flying object

Employee stated that they were re-blocking a breaker while it was raining. The rain splashed debris into their left eye and as the day went on it became sore, swollen, and excreting discharge.

2019 · 1 incident

July 23, 2019 WI · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
County Materials Corp · Over-exertion in lifting objects

Lifting piece of metal kneeling on one knee, removing bolts to get rubber off of metal piece.

2016 · 1 incident

August 10, 2016 WI · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
County Materials Corp · Struck against stationary object

EE was removing a guard off conveyor C15 for routine maintenance. Using force to remove the guard by hand and right thumb struck a piece of metal. Skin was removed off the top of the right thumb knuckle area.

2013 · 1 incident

August 21, 2013 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
County Materials Corp · Over-exertion in lifting objects

Lifting a screen in place on the top deck of screener

2008 · 1 incident

September 3, 2008 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
County Materials Corp · Struck by flying object

EE was replacing teeth on the front end loader, when the hammer head flew off the handle, causing a contusin of his left tibia.

2007 · 1 incident

April 20, 2007 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
County Materials Corp · Struck by flying object

While grinding a welding edge, a piece of metal went under his safety glasses and embedded into his right eye.