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North Lake Pit Metal/Non-Metal

North Lake, Waukesha County, WI  ·  Active
MSHA Mine ID: 4700942

North Lake Pit has $8K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
1983–2021
Latest incident
Mar 2021
Compliance record
MSHA citations since 2000
77
citations
6
significant & substantial
$7,704
proposed penalties
$7,704
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
50
inspections on record
695
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: 695 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

North Lake Pit has $8K in proposed MSHA penalties and $0 outstanding across 3 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.
$8K
proposed penalties
$8K
current assessed
$8K
paid to date
$0
outstanding
77 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-03-03.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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
2025 Q4 2,697 0 0 0.0
2025 Q3 3,135 3 0 956.9
2025 Q2 2,390 0 0 0.0
2025 Q1 2,448 0 0 0.0
2024 Q4 2,880 0 0 0.0
2024 Q3 3,159 0 0 0.0
2024 Q2 3,229 0 0 0.0
2024 Q1 1,987 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 2,785 9 0 3231.6
2023 Q3 3,089 1 0 323.7
2023 Q2 3,148 0 0 0.0
2023 Q1 1,733 0 0 0.0
2022 Q4 2,763 0 0 0.0
2022 Q3 3,026 0 0 0.0
2022 Q2 3,117 0 0 0.0
2022 Q1 2,206 0 0 0.0
2021 Q4 3,777 1 0 264.8
2021 Q3 3,162 0 0 0.0
2021 Q2 2,939 0 0 0.0
2021 Q1 1,464 0 0 0.0
2020 Q4 3,038 3 0 987.5
2020 Q3 3,264 2 0 612.7
2020 Q2 3,043 0 0 0.0
2020 Q1 1,438 0 0 0.0
2019 Q4 2,863 0 0 0.0
2019 Q3 2,931 6 0 2047.1
2019 Q2 2,997 0 0 0.0
2019 Q1 1,777 0 0 0.0
2018 Q4 1,251 0 0 0.0
2018 Q3 465 2 0 4301.1
2018 Q2 0 0 0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 0 0 0
2017 Q2 0 0 0
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 0 0 0
2016 Q2 0 0 0
2016 Q1 0 0 0
2015 Q4 0 0 0
2015 Q3 0 0 0
2015 Q2 0 0 0
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 37 0 0 0.0
2014 Q2 33 0 0 0.0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 32 0 0 0.0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 556 0 0 0.0
2012 Q3 1,209 1 0 827.1
2012 Q2 1,110 0 0 0.0
2012 Q1 1,058 3 0 2835.5
2011 Q4 2,298 0 0 0.0
2011 Q3 1,762 2 0 1135.1
2011 Q2 2,884 0 0 0.0
2011 Q1 1,449 0 0 0.0
2010 Q4 2,659 0 0 0.0
2010 Q3 2,472 0 0 0.0
2010 Q2 2,343 0 0 0.0
2010 Q1 1,276 0 0 0.0
2009 Q4 2,087 4 3 1916.6
2009 Q3 2,915 0 0 0.0
2009 Q2 3,968 5 2 1260.1
2009 Q1 2,102 0 0 0.0
2008 Q4 3,868 0 0 0.0
2008 Q3 3,948 0 0 0.0
2008 Q2 3,688 2 0 542.3
2008 Q1 2,366 0 0 0.0
2007 Q4 3,341 0 0 0.0
2007 Q3 3,775 0 0 0.0
2007 Q2 3,900 0 0 0.0
2007 Q1 2,519 0 0 0.0
2006 Q4 3,545 0 0 0.0
2006 Q3 4,004 0 0 0.0
2006 Q2 4,253 4 0 940.5
2006 Q1 3,146 2 0 635.7
2005 Q4 3,486 0 0 0.0
2005 Q3 4,177 0 0 0.0
2005 Q2 4,167 5 0 1199.9
2005 Q1 2,965 0 0 0.0
2004 Q4 3,629 0 0 0.0
2004 Q3 4,176 0 0 0.0
2004 Q2 4,340 2 0 460.8
2004 Q1 3,120 0 0 0.0
2003 Q4 3,572 0 0 0.0
2003 Q3 4,268 4 0 937.2
2003 Q2 4,189 0 0 0.0
2003 Q1 2,991 0 0 0.0
2002 Q4 3,633 0 0 0.0
2002 Q3 4,447 0 0 0.0
2002 Q2 4,178 1 0 239.3
2002 Q1 2,873 0 0 0.0
2001 Q4 3,852 0 0 0.0
2001 Q3 4,196 6 1 1429.9
2001 Q2 4,462 0 0 0.0
2001 Q1 2,823 0 0 0.0
2000 Q4 4,160 0 0 0.0
2000 Q3 4,138 6 0 1450.0
2000 Q2 4,399 0 0 0.0
2000 Q1 3,300 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2021 · 1 incident

March 26, 2021 WI · Metal/Non-Metal clerk, timekeeper, office worker, director of sales SLIP OR FALL OF PERSON
Halquist Stone Company Inc · Fall down stairs

EE was attempting to remove icy/slippery conditions from the grated step in-between the scalehouse and the scale. As EE was removing the icy conditions, EE slipped and fell, resulting in a laceration to EE's left knee.

1993 · 1 incident

June 22, 1993 WI · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
North Lake Sand & Gravel · Struck by... (Not Elsewhere Classified)

REPLACING SCREWS & HOLDING A JAY BOLT IN PALM OF HAND WHICH SPUN AROUND & CUT FINGER

1992 · 1 incident

October 28, 1992 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
North Lake Sand & Gravel · Over-exertion (Not Elsewhere Classified)

EMPLOYEE DROPPED A WRENCH AND JUMPED DOWN OFF A CATWALK TO GET IT AND THEN PULLED HIMSELF UP BY A BAR, STRAINING HIS BACK. EMPLOYEE CONTINUED TO WORK ALL DAY AND HAS NOT SEEKED MEDICAL ATTENTI ON BUT HE IS OFF WORK. EMPLOYEE WAS FIRST NOTIFIED NOV. 30,1992.

1990 · 1 incident

November 13, 1990 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
North Lake Sand & Gravel · Caught in, under or between (Not Elsewhere Classified)

WHILE ON A SAFETY CHECK THE EMPLOYEE STARTED TO PROCEED TO ADJUST AN IDLER AND HIS RIGHT AHND BECAME CAUGHT BETWEEN THE BELT AND THE IDLER.

1983 · 2 incidents

May 18, 1983 WI · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
North Lake Sand & Gravel · Over-exertion (Not Elsewhere Classified)

INJURED BACK WHEN CHANGING SCREEN CLOTH ON SCREENS, PARTIALLY LIFTING AND CRAWLING AROUND IN THE SCREENS.

April 19, 1983 WI · Metal/Non-Metal mine manager, mine foreman, mine owner OTHER
North Lake Sand & Gravel · Struck by flying object

WHILE WALKING WIND BLEW DUST AND METAL RUST FROM THE WASH PLANT INTO EYE

For insurers, brokers, and safety consultants

The full compliance file on North Lake Pit

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.

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