Halquist Stone Company-Lannon Quarry has $4K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
25
Years on record
1984–2016
Latest incident
Jul 2016
Compliance record
MSHA citations since 2000
39
citations
5
significant & substantial
$3,835
proposed penalties
$3,835
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.
Rate withheld: 683 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Halquist Stone Company-Lannon Quarry has $4K in proposed MSHA penalties and $0 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
39 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 2024-08-13.
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.
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.
1citations taken to the federal commission · 3% of citations on record
Settled
1 · 100%
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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2011-06-27.
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.
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: 2025-09-24
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-09-24
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-02-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-02-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-02-19
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Front-end Loader Operator
2011-04-27
Respirable dust, <.1mg
0
Front-end Loader 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.
Halquist Stone Company-Lannon Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2007.
Injury rate, 2007
ⓘ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 3.30 and the all-US-mining average was 3.77 cases per 100 workers.
In Wisconsin, metal and nonmetal mining averaged 6.10 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
2007 *
0.00
0.00
0.000
2006 *
8.41
0.00
0.000
2005 *
0.00
0.00
0.000
2004 *
0.00
0.00
0.000
2003 *
0.00
0.00
0.000
2002 *
0.00
0.00
0.000
2001 *
6.11
6.11
0.000
2000 *
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
2
2025
2
2024
2
2023
2
2022
3
2021
2
2020
2
2019
3
2018
4
2017
4
2016
5
2015
3
2014
2
2013
1
2012
5
2011
4
2010
3
2009
4
2008
7
2007
9
2006
9
2005
10
2004
15
2003
16
2002
15
2001
15
2000
16
Source: MSHA quarterly employment and production, updated weekly.
Halquist Stone Company-Lannon Quarry 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
1,196
0
0
0.0
2026 Q1
904
0
0
0.0
2025 Q4
1,182
0
0
0.0
2025 Q3
1,179
0
0
0.0
2025 Q2
1,248
0
0
0.0
2025 Q1
802
0
0
0.0
2024 Q4
1,160
0
0
0.0
2024 Q3
1,084
2
0
1845.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,184
0
0
0.0
2024 Q1
930
0
0
0.0
2023 Q4
1,154
0
0
0.0
2023 Q3
1,135
0
0
0.0
2023 Q2
1,239
0
0
0.0
2023 Q1
1,005
0
0
0.0
2022 Q4
1,128
1
0
886.5
2022 Q3
1,218
0
0
0.0
2022 Q2
1,724
0
0
0.0
2022 Q1
1,499
0
0
0.0
2021 Q4
1,269
0
0
0.0
2021 Q3
1,193
0
0
0.0
2021 Q2
1,325
0
0
0.0
2021 Q1
948
0
0
0.0
2020 Q4
1,221
0
0
0.0
2020 Q3
1,897
0
0
0.0
2020 Q2
515
0
0
0.0
2020 Q1
824
0
0
0.0
2019 Q4
530
0
0
0.0
2019 Q3
1,186
0
0
0.0
2019 Q2
1,417
0
0
0.0
2019 Q1
1,640
0
0
0.0
2018 Q4
1,115
0
0
0.0
2018 Q3
1,344
0
0
0.0
2018 Q2
1,347
0
0
0.0
2018 Q1
1,000
1
0
1000.0
2017 Q4
1,190
0
0
0.0
2017 Q3
1,964
0
0
0.0
2017 Q2
1,612
1
0
620.3
2017 Q1
1,203
0
0
0.0
2016 Q4
1,589
0
0
0.0
2016 Q3
1,949
0
0
0.0
2016 Q2
2,423
0
0
0.0
2016 Q1
907
0
0
0.0
2015 Q4
1,235
0
0
0.0
2015 Q3
2,357
0
0
0.0
2015 Q2
1,915
3
3
1566.6
2015 Q1
1,356
0
0
0.0
2014 Q4
1,346
0
0
0.0
2014 Q3
1,344
0
0
0.0
2014 Q2
1,272
0
0
0.0
2014 Q1
350
0
0
0.0
2013 Q4
571
0
0
0.0
2013 Q3
571
1
0
1751.3
2013 Q2
567
0
0
0.0
2013 Q1
496
0
0
0.0
2012 Q4
1,195
0
0
0.0
2012 Q3
1,684
1
0
593.8
2012 Q2
2,742
0
0
0.0
2012 Q1
1,385
0
0
0.0
2011 Q4
1,477
0
0
0.0
2011 Q3
1,834
0
0
0.0
2011 Q2
1,840
2
0
1087.0
2011 Q1
945
0
0
0.0
2010 Q4
1,305
0
0
0.0
2010 Q3
1,800
0
0
0.0
2010 Q2
1,207
0
0
0.0
2010 Q1
781
1
1
1280.4
2009 Q4
1,180
0
0
0.0
2009 Q3
1,603
0
0
0.0
2009 Q2
2,051
0
0
0.0
2009 Q1
2,130
0
0
0.0
2008 Q4
2,565
0
0
0.0
2008 Q3
2,650
0
0
0.0
2008 Q2
8,270
0
0
0.0
2008 Q1
1,380
0
0
0.0
2007 Q4
5,672
0
0
0.0
2007 Q3
6,128
0
0
0.0
2007 Q2
5,813
0
0
0.0
2007 Q1
4,672
0
0
0.0
2006 Q4
6,114
2
0
327.1
2006 Q3
7,198
1
0
138.9
2006 Q2
7,005
0
0
0.0
2006 Q1
3,452
0
0
0.0
2005 Q4
4,668
0
0
0.0
2005 Q3
5,434
2
0
368.1
2005 Q2
7,317
0
0
0.0
2005 Q1
6,765
0
0
0.0
2004 Q4
9,213
0
0
0.0
2004 Q3
8,924
0
0
0.0
2004 Q2
9,107
0
0
0.0
2004 Q1
8,020
1
0
124.7
2003 Q4
8,431
0
0
0.0
2003 Q3
9,772
2
0
204.7
2003 Q2
8,698
0
0
0.0
2003 Q1
7,531
4
0
531.1
2002 Q4
8,674
0
0
0.0
2002 Q3
8,296
0
0
0.0
2002 Q2
8,736
0
0
0.0
2002 Q1
7,556
0
0
0.0
2001 Q4
8,500
1
0
117.6
2001 Q3
8,478
4
1
471.8
2001 Q2
8,252
0
0
0.0
2001 Q1
7,494
5
0
667.2
2000 Q4
7,657
0
0
0.0
2000 Q3
7,683
0
0
0.0
2000 Q2
9,460
4
0
422.8
2000 Q1
8,609
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
25 on file
2016 · 1 incident
July 13, 2016WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was inside the crusher jaw "facing" the dyes with a sander and when he re-positioned himself the sander contacted his left leg just below the knee.
EE WENT DOWN TO GET CO-WORKERS FOR BREAK. THEY WERE WORKING IN THE WEST HOLE. A CRANE AND A LOADER WERE BEING USED. THE CRANE OPERATOR WAS LOWERING THE PUMP DOWN, AS THE PUMP WAS SET DOWN IT TIPPED OVER. EE WALKED ALONG THE EAST HIGHWALL (APROX.57') TO HELP TIP THE PUMP BACK UP. A ROCK FELL AND HIT EE ON THE TOP OF HIS HARD HAT/HEAD. NOT SURE WHY THE ROCK FELL (SOFTBALL SIZE)
1994 · 4 incidents
September 12, 1994WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE PUT HAND OVER BROKEN HYDRAULIC LINE WHILE MACHINE WAS ON. HYDRAULIC OIL WAS INJECTEDINTO TISSUE OF HAND, AS WELL AS CREATING A SMALLLACERATION.
July 29, 1994WI · Metal/Non-Metalledgeman/hand, quarry manPOWERED HAULAGE
EMPLOYEE WAS TRYIN GOT FREE STONE FROM CONVEYOR BY HAND,WHEN STONE SLIPPED, PUSHING HAND ONTO METLA EDGE OF THE EQUIPMENT,CUTTING FINGER ON EDGE. EMPLOYEE WAS NOT USING THE PROPER EQUIPMENT DESIGNATED FOR THIS ACTIIVTY.
April 21, 1994WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE WAS CL9ANING DUST COLLECTOR ON DRILL PINCHED FINGER IN DUST COLLECTOR WHILE OPENING IT.
1985 · 1 incident
December 16, 1985WI · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON