Mining Incidents

Chilton Quarry: 34 MSHA citations Metal/Non-Metal

Controlled by EVS Master Holdco LLC
Chilton, WI, Calumet County, WI  ·  Active
MSHA Mine ID: 4703153

Chilton Quarry has $3K 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
13
Years on record
1998–2019
Latest incident
May 2019
Compliance record
MSHA citations since 2000
34
citations
4
significant & substantial
$3,226
proposed penalties
$3,226
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
43
inspections on record
445
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: 445 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Chilton Quarry has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
34 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-11-19.
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.
11.8%
significant & substantial
2.9%
high negligence or reckless
11.8%
reasonably likely or greater
44.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.9% low, 94.1% moderate, 2.9% 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: 2026-02-10
0%
of limit-tested samples over the exposure limit
12
samples
6
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz6
  • Nuisance dust, total, <1% Qtz4
  • Respirable dust, <.1mg2
Show the individual readings (12)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-02-10 Nuisance dust, total, <1% Qtz 0.18 10 0.02 Laborer, Bullgang
2026-02-10 Nuisance dust, total, <1% Qtz 0.25 10 0.03 Laborer, Bullgang
2026-02-10 Nuisance dust, total, <1% Qtz 0.41 10 0.04 Laborer, Bullgang
2026-02-10 Nuisance dust, total, <1% Qtz 0.19 10 0.02 Laborer, Bullgang
2024-11-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-11-20 Quartz, respirable, >1% Qtz 0.14 Front-end Loader Operator
2024-11-20 Quartz, respirable, >1% Qtz 0.17 Laborer, Bullgang
2024-11-20 Quartz, respirable, >1% Qtz 0.15 Laborer, Bullgang
2024-11-20 Quartz, respirable, >1% Qtz 0.16 Laborer, Bullgang
2016-03-23 Quartz, respirable, >1% Qtz 0.15 1.47 0.10 Laborer, Bullgang
2016-03-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-03-23 Quartz, respirable, >1% Qtz 0.24 1.98 0.12 Laborer, Bullgang
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.

Chilton Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2014.

Injury rate, 2014
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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 2.39 and the all-US-mining average was 2.93 cases per 100 workers.
In Wisconsin, metal and nonmetal mining averaged 3.86 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.
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. Eden Stone Co., LLC 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 5
2024 6
2023 7
2022 5
2021 6
2020 5
2019 4
2018 5
2017 4
2016 6
2015 5
2014 8
2013 7
2012 9
2011 5
2010 4
2009 7
2008 6
2007 7
2006 8
2005 8
2004 8
2003 6
2002 4
2001 2
2000 3
Source: MSHA quarterly employment and production, updated weekly.

Chilton Quarry sits in Calumet 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.
Calumet County, Wisconsin · Population 52,626
0.1%
Mining share of county employment
$87,700
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 2,878 0 0 0.0
2026 Q1 3,059 0 0 0.0
2025 Q4 1,542 0 0 0.0
2025 Q3 1,689 0 0 0.0
2025 Q2 1,626 0 0 0.0
2025 Q1 1,495 0 0 0.0
2024 Q4 1,492 3 0 2010.7
2024 Q3 1,721 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,908 0 0 0.0
2024 Q1 2,224 1 1 449.6
2023 Q4 2,152 0 0 0.0
2023 Q3 5,120 0 0 0.0
2023 Q2 3,397 0 0 0.0
2023 Q1 4,637 0 0 0.0
2022 Q4 1,621 0 0 0.0
2022 Q3 1,266 0 0 0.0
2022 Q2 2,315 1 0 432.0
2022 Q1 5,403 0 0 0.0
2021 Q4 2,542 0 0 0.0
2021 Q3 4,157 0 0 0.0
2021 Q2 2,800 0 0 0.0
2021 Q1 3,413 0 0 0.0
2020 Q3 1,500 0 0 0.0
2020 Q2 2,291 0 0 0.0
2020 Q1 3,401 0 0 0.0
2019 Q4 2,462 0 0 0.0
2019 Q3 2,641 0 0 0.0
2019 Q2 2,325 0 0 0.0
2019 Q1 2,446 0 0 0.0
2018 Q4 1,742 1 1 574.1
2018 Q3 60 0 0 0.0
2018 Q2 914 0 0 0.0
2018 Q1 3,002 1 0 333.1
2017 Q4 1,789 0 0 0.0
2017 Q3 1,619 0 0 0.0
2017 Q2 1,861 0 0 0.0
2017 Q1 1,625 0 0 0.0
2016 Q4 1,609 2 0 1243.0
2016 Q3 3,662 0 0 0.0
2016 Q2 3,192 0 0 0.0
2016 Q1 3,125 0 0 0.0
2015 Q4 3,770 0 0 0.0
2015 Q3 2,259 0 0 0.0
2015 Q2 2,213 0 0 0.0
2015 Q1 2,208 0 0 0.0
2014 Q4 3,395 0 0 0.0
2014 Q3 4,213 0 0 0.0
2014 Q2 8,332 2 0 240.0
2014 Q1 4,206 2 1 475.5
2013 Q4 4,274 0 0 0.0
2013 Q3 0 0 0
2013 Q2 3,127 0 0 0.0
2013 Q1 4,889 0 0 0.0
2012 Q4 4,845 0 0 0.0
2012 Q3 4,382 0 0 0.0
2012 Q2 4,957 0 0 0.0
2012 Q1 2,143 0 0 0.0
2011 Q4 3,570 0 0 0.0
2011 Q3 2,931 0 0 0.0
2011 Q2 1,920 0 0 0.0
2011 Q1 1,173 0 0 0.0
2010 Q4 0 0 0
2010 Q3 2,348 0 0 0.0
2010 Q2 2,461 0 0 0.0
2010 Q1 211 0 0 0.0
2009 Q4 2,935 0 0 0.0
2009 Q3 3,844 1 0 260.1
2009 Q2 4,060 0 0 0.0
2009 Q1 2,026 0 0 0.0
2008 Q4 2,291 0 0 0.0
2008 Q3 3,383 2 0 591.2
2008 Q2 3,588 0 0 0.0
2008 Q1 1,953 0 0 0.0
2007 Q4 3,858 0 0 0.0
2007 Q3 3,784 0 0 0.0
2007 Q2 3,304 0 0 0.0
2007 Q1 1,953 0 0 0.0
2006 Q4 3,124 1 0 320.1
2006 Q3 2,734 0 0 0.0
2006 Q2 3,902 3 0 768.8
2006 Q1 3,702 0 0 0.0
2005 Q4 4,130 0 0 0.0
2005 Q3 3,401 5 0 1470.2
2005 Q2 2,919 0 0 0.0
2005 Q1 4,511 0 0 0.0
2004 Q4 0 0 0
2004 Q3 3,733 0 0 0.0
2004 Q2 5,664 0 0 0.0
2004 Q1 2,993 0 0 0.0
2003 Q4 3,814 0 0 0.0
2003 Q3 4,004 0 0 0.0
2003 Q2 4,162 0 0 0.0
2003 Q1 718 0 0 0.0
2002 Q4 1,146 0 0 0.0
2002 Q3 3,367 2 0 594.0
2002 Q2 3,111 0 0 0.0
2002 Q1 981 0 0 0.0
2001 Q4 1,151 0 0 0.0
2001 Q3 1,115 0 0 0.0
2001 Q2 1,224 0 0 0.0
2001 Q1 1,143 0 0 0.0
2000 Q4 1,180 5 0 4237.3
2000 Q3 1,160 0 0 0.0
2000 Q2 1,155 0 0 0.0
2000 Q1 935 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

13 on file

2019 · 2 incidents

May 28, 2019 WI · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
Eden Stone Co., LLC · Struck by falling object

Miner was splitting a piece of stone with a chisel and hammer when a piece of stone broke off and fell on EE's left foot. EE's left foot received a hematoma bruise.

March 15, 2019 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Eden Stone Co., LLC · Fall from machine

A truck driver/mine employee was on trailer supervising the loading of the trailer. EE took a few steps backward and fell off the trailer and landed on neck. EE sustained a fracture of the seventh cervical vertebra.

2016 · 1 incident

August 22, 2016 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Over-exertion in lifting objects

The miner was lifting a piece of stone when EE felt pain in leg, arm and chest.

2015 · 2 incidents

July 9, 2015 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Over-exertion in lifting objects

Miner was lifting a piece of stone while twisting and strained his lower back.

May 15, 2015 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Struck by falling object

Cutting down trees with chain saw, dead tree next to area fell from vibration of work activities (possible wind) As employee was watching and backing away from tree he just cut down a Dead tree in area fell on employee knocking of hard hat off and hitting arms and chain saw he was carrying. That employee sustained broken arm and fractured wrist.

2012 · 3 incidents

September 14, 2012 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Eden Stone Co., LLC · Struck by flying object

Worker was splitting a piece of stone when a small piece of the stone broke loose struck him on his left leg between the knee and foot, causing a contusion.

July 23, 2012 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Over-exertion in lifting objects

Worker was carrying a 35lb stone, when he twisted to put it on the stack he felt his left hip "pop". Left hip strain. Restricted duty, No lost time.

March 19, 2012 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Struck by... (Not Elsewhere Classified)

Two workers were carrying a thin piece of stone. The stone fractured and a sharp piece cut through one of the workers gloves causing a 3" laceration to the top of his left hand proximal to his wrist. Laceration was closed with 5 stitches.

2011 · 1 incident

July 29, 2011 WI · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Eden Stone Co., LLC · Struck by flying object

Loader operator was tipping a stone to be split when the back side of the stone blew out and a piece of the stone struck an employee on his left shin.

2009 · 1 incident

September 4, 2009 WI · Metal/Non-Metal stone finishing and sizing personnel, stone/rock cut/polish/saw operator, splitter, cutter, trimmer HANDTOOLS (NONPOWERED)
Eden Stone Co., LLC · Over-exertion (Not Elsewhere Classified)

Worker was bent over splitting stone using a hammer and chisel, felt pain in lower back and left leg. Sent to clinic on 09/21/2009. No lost time, no restrictions. Meds only.

2004 · 2 incidents

June 24, 2004 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Caught in, under or between (Not Elsewhere Classified)

Employee was stacking stones onto a pallet and he pinched his finger in between two stones. Causing his left ring finger to fracture.

1998 · 1 incident

July 29, 1998 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Eden Stone Co., LLC · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS BENDING OVER, OPENING UP STEPPERS AND HAD PAIN FROM RIGHT SHOULDER BLADE DOWN TO LOWER BACK TO HIP AREA.