Mining Incidents

Wissota Sand & Gravel, Rugby Pit: 117 MSHA citations Metal/Non-Metal

Controlled by WSG Acquisition Corp
Richfield, Washington County, WI  ·  Active
MSHA Mine ID: 4701855

Wissota Sand & Gravel, Rugby Pit has $13K 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
3
Years on record
1990–2025
Latest incident
Nov 2025
Compliance record
MSHA citations since 2001
117
citations
16
significant & substantial
$13,389
proposed penalties
$13,389
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
63
inspections on record
1,132
inspection hours
10.3
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.
117 citations across 1,132 inspection hours.
Source: MSHA inspections data, updated weekly.

Wissota Sand & Gravel, Rugby Pit has $13K 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.
$13K
proposed penalties
$13K
current assessed
$13K
paid to date
$0
outstanding
113 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-03.
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.
13.7%
significant & substantial
1.7%
high negligence or reckless
13.7%
reasonably likely or greater
34.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 35.9% low, 62.4% 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: 2026-08-06
0%
of limit-tested samples over the exposure limit
19
samples
4
limit-tested
Most sampled contaminants
  • Unlisted Particulate, respirable, <1% Qtz7
  • Quartz, respirable, >1% Qtz6
  • Respirable dust, <.1mg6
Show the individual readings (19)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-08-06 Respirable dust, <.1mg 0 Truck Driver
2026-08-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-09-11 Respirable dust, <.1mg 0 Utility Man
2024-09-11 Quartz, respirable, >1% Qtz 0.21 Mechanic
2019-09-18 Quartz, respirable, >1% Qtz 0.41 Mechanic
2019-09-18 Unlisted Particulate, respirable, <1% Qtz 0.17 Utility Man
2019-09-18 Respirable dust, <.1mg 0 Crusher Oper/Worker
2013-05-01 Unlisted Particulate, respirable, <1% Qtz 0.24 Laborer, Bullgang
2013-05-01 Unlisted Particulate, respirable, <1% Qtz 0.18 Mechanic
2013-05-01 Unlisted Particulate, respirable, <1% Qtz 0.48 Bulldozer Operator
2013-05-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-04-28 Unlisted Particulate, respirable, <1% Qtz 0.34 Front-end Loader Operator
2009-04-28 Quartz, respirable, >1% Qtz 0.37 2.17 0.17 Crusher Oper/Worker
2009-04-28 Quartz, respirable, >1% Qtz 0.17 1.81 0.09 Laborer, Bullgang
2009-04-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2001-05-16 Unlisted Particulate, respirable, <1% Qtz 0.18 Truck Driver
2001-05-16 Unlisted Particulate, respirable, <1% Qtz 0.17 Front-end Loader Operator
2001-05-15 Quartz, respirable, >1% Qtz 0.31 2.32 0.13 Front-end Loader Operator
2001-05-15 Quartz, respirable, >1% Qtz 0.14 1.41 0.10 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.

Wissota Sand & Gravel, Rugby Pit recorded 4.69 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
4.69
total case rate
4.69
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Wisconsin, metal and nonmetal mining averaged 1.80 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 4.69 4.69 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Wissota Sand & Gravel Co. 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 16
2025 19
2024 18
2023 19
2022 17
2021 16
2020 14
2019 13
2018 12
2017 12
2016 12
2015 11
2014 11
2013 10
2012 10
2011 9
2010 9
2009 10
2008 11
2007 17
2006 21
2005 19
2004 18
2003 18
2002 16
2001 15
2000 14
Source: MSHA quarterly employment and production, updated weekly.

Wissota Sand & Gravel, Rugby Pit sits in Washington County, Wisconsin, where the Census mining category is 0.2% 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.
Washington County, Wisconsin · Population 137,320
0.2%
Mining share of county employment
$95,851
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 12,378 0 0 0.0
2026 Q1 6,022 3 1 498.2
2025 Q4 10,581 0 0 0.0
2025 Q3 11,526 0 0 0.0
2025 Q2 13,146 3 0 228.2
2025 Q1 7,386 0 0 0.0
2024 Q4 10,374 4 1 385.6
2024 Q3 13,404 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 10,277 2 0 194.6
2024 Q1 8,720 0 0 0.0
2023 Q4 9,943 2 0 201.1
2023 Q3 13,111 2 0 152.5
2023 Q2 10,851 0 0 0.0
2023 Q1 8,049 1 0 124.2
2022 Q4 9,706 0 0 0.0
2022 Q3 13,112 0 0 0.0
2022 Q2 11,219 2 2 178.3
2022 Q1 8,019 0 0 0.0
2021 Q4 10,080 0 0 0.0
2021 Q3 12,850 0 0 0.0
2021 Q2 9,987 1 0 100.1
2021 Q1 6,233 2 0 320.9
2020 Q4 8,345 0 0 0.0
2020 Q3 10,833 0 0 0.0
2020 Q2 8,865 3 0 338.4
2020 Q1 6,148 2 0 325.3
2019 Q4 6,343 0 0 0.0
2019 Q3 9,699 0 0 0.0
2019 Q2 9,417 0 0 0.0
2019 Q1 2,547 0 0 0.0
2018 Q4 7,745 1 0 129.1
2018 Q3 8,217 1 0 121.7
2018 Q2 9,473 0 0 0.0
2018 Q1 4,979 2 1 401.7
2017 Q4 7,866 0 0 0.0
2017 Q3 7,891 0 0 0.0
2017 Q2 9,514 0 0 0.0
2017 Q1 3,490 0 0 0.0
2016 Q4 7,505 1 0 133.2
2016 Q3 8,541 0 0 0.0
2016 Q2 8,890 0 0 0.0
2016 Q1 4,784 1 0 209.0
2015 Q4 7,874 0 0 0.0
2015 Q3 7,378 3 0 406.6
2015 Q2 8,198 0 0 0.0
2015 Q1 4,569 3 1 656.6
2014 Q4 7,770 0 0 0.0
2014 Q3 7,302 0 0 0.0
2014 Q2 8,475 0 0 0.0
2014 Q1 4,433 0 0 0.0
2013 Q4 7,535 1 0 132.7
2013 Q3 7,750 0 0 0.0
2013 Q2 5,857 0 0 0.0
2013 Q1 2,402 1 0 416.3
2012 Q4 5,882 0 0 0.0
2012 Q3 8,160 5 1 612.7
2012 Q2 6,684 0 0 0.0
2012 Q1 4,246 0 0 0.0
2011 Q4 4,434 0 0 0.0
2011 Q3 6,192 2 1 323.0
2011 Q2 5,502 0 0 0.0
2011 Q1 2,737 0 0 0.0
2010 Q4 4,869 0 0 0.0
2010 Q3 7,607 2 0 262.9
2010 Q2 8,040 0 0 0.0
2010 Q1 2,582 0 0 0.0
2009 Q4 4,853 0 0 0.0
2009 Q3 6,733 0 0 0.0
2009 Q2 6,230 13 2 2086.7
2009 Q1 2,699 0 0 0.0
2008 Q4 4,147 0 0 0.0
2008 Q3 7,688 0 0 0.0
2008 Q2 5,873 0 0 0.0
2008 Q1 3,055 0 0 0.0
2007 Q4 5,665 5 1 882.6
2007 Q3 10,635 0 0 0.0
2007 Q2 10,528 0 0 0.0
2007 Q1 3,768 0 0 0.0
2006 Q4 6,127 0 0 0.0
2006 Q3 13,130 0 0 0.0
2006 Q2 13,970 7 0 501.1
2006 Q1 5,194 0 0 0.0
2005 Q4 9,182 0 0 0.0
2005 Q3 10,405 3 0 288.3
2005 Q2 9,398 0 0 0.0
2005 Q1 4,707 0 0 0.0
2004 Q4 9,581 0 0 0.0
2004 Q3 11,420 0 0 0.0
2004 Q2 10,864 0 0 0.0
2004 Q1 4,892 3 0 613.2
2003 Q4 9,418 0 0 0.0
2003 Q3 11,656 0 0 0.0
2003 Q2 11,143 3 0 269.2
2003 Q1 3,257 0 0 0.0
2002 Q4 6,127 0 0 0.0
2002 Q3 9,562 6 1 627.5
2002 Q2 10,261 5 0 487.3
2002 Q1 5,180 0 0 0.0
2001 Q4 8,576 0 0 0.0
2001 Q3 12,177 0 0 0.0
2001 Q2 8,591 16 3 1862.4
2001 Q1 2,703 0 0 0.0
2000 Q4 5,565 0 0 0.0
2000 Q3 8,759 0 0 0.0
2000 Q2 7,946 0 0 0.0
2000 Q1 5,631 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2025 · 1 incident

November 3, 2025 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman EXPLODING VESSELS UNDER PRESSURE
Wissota Sand & Gravel Co. · Struck by... (Not Elsewhere Classified)

THE MINER WAS WORKING ON AN EXCAVATOR, WHILE REPLACING A HYDRAULIC HOSE AND WHILE LOOSENING THE HOSE, THE PRESSURE BUILT UP AND THE FLUID HIT THE MINER IN THE FACE AROUND THE LOWER LIP AND CHIN AREA.

1991 · 1 incident

January 18, 1991 WI · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Wissota Sand & Gravel Co. · Struck by flying object

EMPLOYEE WAS WORKING WITH A PIECE OF STEEL AND GRINDING WHEEL. EITHER A STEEL CHIP OR PIECE OF WHEEL GLANCED OFF RIM OF GLASSES AND INTO CORNER OF HIS EYE. WE FLUSHED THE EYE AND EVERY THING SEEMED ALRIGHT. BUT HE WAS BOTHERED LATER AT NIGHT AND WENT TO DOCTOR.

1990 · 1 incident

August 8, 1990 WI · Metal/Non-Metal mine manager, mine foreman, mine owner POWERED HAULAGE
Wissota Sand & Gravel Co. · Caught in, under or between running or meshing objects

INJURED WAS OPERATING SCREEN PLANT WHEN DISCHARGE BELT BEGAN TO SLIP ON HEAD PULLEY, HE ATTEMPTED TO APPLY TUBE TYPE BELT DRESSING AT WHICH TIME HE BECAME ENTRAPPED IN HEAD PULLEY. ENGINE WAS SHUT OFF BY CHOKE SWITCH BY OPERATOR MACHINE WAS NOT GUARDED.