Monacelli Stone Company Inc has $34K 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
11
Years on record
2000–2022
Latest incident
Jun 2022
Compliance record
MSHA citations since 2000
201
citations
32
significant & substantial
$34,112
proposed penalties
$34,112
paid to date
100% of proposed penalties paid to date, a $0 gap.
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.
201 citations across 1,084 inspection hours.
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: 2015-10-27.
On record since 2015.
Source: MSHA imminent-danger order records, updated weekly.
Monacelli Stone Company Inc has $34K 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.
$34K
proposed penalties
$34K
current assessed
$34K
paid to date
$0
outstanding
200 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-25.
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.
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: 2025-12-17
6%
of limit-tested samples over the exposure limit
26
samples
18
limit-tested
Most sampled contaminants
Nuisance dust, total, <1% Qtz51 over
Quartz, respirable, >1% Qtz15
Respirable dust, <.1mg3
Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (26)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2020-11-17
Nuisance dust, total, <1% Qtz
12.49
10
1.25
Stone Polisher/Cutter
2025-12-17
Quartz, respirable, >1% Qtz
0.19
Cutting Mach Operator
2025-12-17
Quartz, respirable, >1% Qtz
0.72
2.5
0.29
Cutting Mach Operator
2025-09-23
Quartz, respirable, >1% Qtz
0.48
1.96
0.24
Hand Loader
2025-09-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-01-21
Nuisance dust, respirable, <1% Qtz
0.22
10
0.02
Stone Polisher/Cutter
2021-01-21
Quartz, respirable, >1% Qtz
0.33
Stone Polisher/Cutter
2021-01-21
Nuisance dust, total, <1% Qtz
5.03
10
0.50
Stone Polisher/Cutter
2021-01-21
Nuisance dust, total, <1% Qtz
2.62
10
0.26
Stone Polisher/Cutter
2021-01-21
Nuisance dust, total, <1% Qtz
7.49
10
0.75
Stone Polisher/Cutter
2020-11-17
Nuisance dust, total, <1% Qtz
6.43
10
0.64
Stone Polisher/Cutter
2020-11-17
Quartz, respirable, >1% Qtz
0.75
1.89
0.40
Stone Polisher/Cutter
2020-11-17
Quartz, respirable, >1% Qtz
0.43
Front-end Loader Operator
2017-04-19
Quartz, respirable, >1% Qtz
0.57
1.72
0.33
Stone Polisher/Cutter
2017-04-19
Quartz, respirable, >1% Qtz
0.71
1.62
0.44
Stone Polisher/Cutter
2017-04-19
Quartz, respirable, >1% Qtz
0.57
1.77
0.32
Stone Polisher/Cutter
2011-08-02
Unlisted Particulate, respirable, <1% Qtz
5.86
Stone Polisher/Cutter
2011-08-02
Unlisted Particulate, respirable, <1% Qtz
6.89
Utility Man
2005-01-05
Quartz, respirable, >1% Qtz
0.81
1.93
0.42
Stone Polisher/Cutter
2005-01-05
Quartz, respirable, >1% Qtz
0.29
1.74
0.17
Stone Polisher/Cutter
2005-01-05
Quartz, respirable, >1% Qtz
0.29
2.22
0.13
Stone Polisher/Cutter
2005-01-05
Quartz, respirable, >1% Qtz
0.68
2.22
0.31
Stone Polisher/Cutter
2005-01-05
Quartz, respirable, >1% Qtz
0.46
1.76
0.26
Laborer, Bullgang
2004-08-17
Respirable dust, <.1mg
0
Stone Polisher/Cutter
2004-08-17
Quartz, respirable, >1% Qtz
0.37
1.58
0.23
Forklift Operator
2004-08-17
Respirable dust, <.1mg
0
Forklift Operator
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.
Monacelli Stone Company Inc recorded 0.00 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below 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 *
0.00
0.00
0.000
2024 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2022 *
15.15
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
2006 *
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
15
2025
16
2024
16
2023
16
2022
15
2021
13
2020
14
2019
14
2018
15
2017
13
2016
13
2015
12
2014
11
2013
10
2012
9
2011
9
2010
13
2009
12
2008
11
2007
12
2006
13
2005
13
2004
14
2003
12
2002
10
2001
8
2000
8
Source: MSHA quarterly employment and production, updated weekly.
Monacelli Stone Company Inc sits in Waukesha 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.
Waukesha County, Wisconsin · Population 409,040
0.1%
Mining share of county employment
$104,100
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
6,846
0
0
0.0
2026 Q1
4,592
1
0
217.8
2025 Q4
6,293
2
1
317.8
2025 Q3
8,005
0
0
0.0
2025 Q2
7,062
2
0
283.2
2025 Q1
6,247
0
0
0.0
2024 Q4
6,370
5
0
784.9
2024 Q3
7,834
2
0
255.3
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
7,396
0
0
0.0
2024 Q1
6,283
0
0
0.0
2023 Q4
6,670
11
3
1649.2
2023 Q3
8,155
0
0
0.0
2023 Q2
6,730
0
0
0.0
2023 Q1
5,787
2
0
345.6
2022 Q4
6,146
0
0
0.0
2022 Q3
8,494
4
0
470.9
2022 Q2
6,212
0
0
0.0
2022 Q1
5,556
6
1
1079.9
2021 Q4
5,891
0
0
0.0
2021 Q3
6,647
0
0
0.0
2021 Q2
6,366
4
1
628.3
2021 Q1
4,049
0
0
0.0
2020 Q4
5,618
3
0
534.0
2020 Q3
5,895
1
0
169.6
2020 Q2
6,189
0
0
0.0
2020 Q1
4,475
0
0
0.0
2019 Q4
5,286
3
0
567.5
2019 Q3
5,848
0
0
0.0
2019 Q2
6,019
1
0
166.1
2019 Q1
4,186
2
0
477.8
2018 Q4
4,915
0
0
0.0
2018 Q3
6,501
0
0
0.0
2018 Q2
2,791
3
2
1074.9
2018 Q1
4,335
0
0
0.0
2017 Q4
4,544
7
0
1540.5
2017 Q3
5,806
0
0
0.0
2017 Q2
4,547
7
2
1539.5
2017 Q1
2,985
0
0
0.0
2016 Q4
4,368
1
0
228.9
2016 Q3
5,274
7
1
1327.3
2016 Q2
4,843
0
0
0.0
2016 Q1
2,861
0
0
0.0
2015 Q4
3,913
11
4
2811.1
2015 Q3
5,012
6
1
1197.1
2015 Q2
4,378
0
0
0.0
2015 Q1
2,492
5
2
2006.4
2014 Q4
3,787
0
0
0.0
2014 Q3
4,436
0
0
0.0
2014 Q2
4,127
0
0
0.0
2014 Q1
1,944
0
0
0.0
2013 Q4
3,197
0
0
0.0
2013 Q3
4,434
0
0
0.0
2013 Q2
3,368
0
0
0.0
2013 Q1
1,688
5
1
2962.1
2012 Q4
2,651
6
1
2263.3
2012 Q3
4,229
0
0
0.0
2012 Q2
3,370
4
1
1186.9
2012 Q1
1,975
0
0
0.0
2011 Q4
3,001
0
0
0.0
2011 Q3
3,747
2
0
533.8
2011 Q2
3,507
0
0
0.0
2011 Q1
1,668
0
0
0.0
2010 Q4
2,584
0
0
0.0
2010 Q3
3,735
0
0
0.0
2010 Q2
3,254
0
0
0.0
2010 Q1
2,029
0
0
0.0
2009 Q4
4,340
3
1
691.2
2009 Q3
4,715
0
0
0.0
2009 Q2
3,780
0
0
0.0
2009 Q1
1,163
0
0
0.0
2008 Q4
3,362
1
0
297.4
2008 Q3
3,998
0
0
0.0
2008 Q2
3,270
2
0
611.6
2008 Q1
2,033
0
0
0.0
2007 Q4
3,759
1
0
266.0
2007 Q3
4,474
4
2
894.1
2007 Q2
5,672
0
0
0.0
2007 Q1
4,555
0
0
0.0
2006 Q4
5,015
4
0
797.6
2006 Q3
7,066
7
2
990.7
2006 Q2
5,912
0
0
0.0
2006 Q1
3,813
8
0
2098.1
2005 Q4
4,617
0
0
0.0
2005 Q3
5,578
0
0
0.0
2005 Q2
5,454
5
1
916.8
2005 Q1
3,445
8
2
2322.2
2004 Q4
4,781
0
0
0.0
2004 Q3
7,004
1
0
142.8
2004 Q2
5,304
0
0
0.0
2004 Q1
4,149
10
1
2410.2
2003 Q4
4,734
0
0
0.0
2003 Q3
6,004
1
0
166.6
2003 Q2
5,839
0
0
0.0
2003 Q1
3,708
6
0
1618.1
2002 Q4
2,806
0
0
0.0
2002 Q3
4,496
0
0
0.0
2002 Q2
3,861
0
0
0.0
2002 Q1
2,760
0
0
0.0
2001 Q4
1,521
0
0
0.0
2001 Q3
2,756
9
1
3265.6
2001 Q2
2,330
0
0
0.0
2001 Q1
1,102
7
1
6352.1
2000 Q4
1,197
1
0
835.4
2000 Q3
2,271
0
0
0.0
2000 Q2
2,132
5
0
2345.2
2000 Q1
1,231
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
11 on file
2022 · 2 incidents
June 1, 2022WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
Employee reached for a rock from the Hydra Splitter & got two finger tips caught in the machine. Employee was taken to the doctor for x rays that showed the finger tips were fractured and bruised. Employee was on light duty work for five weeks. Recent Doctor follow up concluded that Brayan's fingers have healed and employee was released to regular work duty with no restrictions.
April 7, 2022WI · Metal/Non-Metaloutside foreman, leadmanPOWERED HAULAGE
EE was unloading the splitter when EE reached to grab a stone and the fork lift driver also was reaching with the fork of the fork lift for the same stone when EE's fingers got pinched in between the rock and the fork of the fork lift. EE's little pinky finger was bruised and ring finger was slightly fractured.
2017 · 1 incident
November 10, 2017WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was sliding a large rock to the edge of the forks. The rocks slide off the edge of the forks causing the stone to fall and pulling down the employee's arm and tearing employee's bicep tendon
2016 · 1 incident
August 2, 2016WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was manufacturing stone which involved lifting heavy stone from a pallet, onto a saw table. While doing this process the employee strained a muscle in EE's back.
Miner was hand loading rocks into the bucket of a front end loader. As the miner was turning to put the rock in the bucket, he caught his hand in between the loader bucket and the rock which was in his hand. This caused his finger to get injured and cut. Weather conditions were not a factor in this accident.
2003 · 2 incidents
September 3, 2003WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
THE EE WAS ATTEMPTING TO REPAIR & STRAIGHTEN A SECTION OF METAL ON SOME EQUIPMENT WITH A HAND GRINDER THE EE LOST HIS GRIP & THE GRINDER HIT THE SIDE OF HIS FACE, MINOR SURFACE SCRATCHES OCCURRED.