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Lakemoor Pit: 61 MSHA citations Metal/Non-Metal

Controlled by Steven Thelen
McHenry, Mchenry County, IL  ·  Active
MSHA Mine ID: 1103221

Lakemoor Pit has $11K in proposed MSHA penalties and $377 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
7
Years on record
2011–2025
Latest incident
May 2025
Compliance record
MSHA citations since 2010
61
citations
5
significant & substantial
$10,539
proposed penalties
$7,885
paid to date
75% of proposed penalties paid to date, a $2,654 gap.
Source: MSHA violations data, updated weekly.
See Thelen Sand & Gravel, Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2010
35
inspections on record
841
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: 841 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Lakemoor Pit has $11K in proposed MSHA penalties and $377 outstanding across 5 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.
$11K
proposed penalties
$8K
current assessed
$8K
paid to date
$377
outstanding
59 assessments are final orders; 5 contested dockets.
Of $3K in penalties contested before the Commission, $938 was upheld in final decisions.
As of the most recent assessment on 2025-06-11.
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.
8.2%
significant & substantial
6.6%
high negligence or reckless
8.2%
reasonably likely or greater
27.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 41.0% low, 52.5% moderate, 6.6% high, 0.0% reckless.
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.
8 citations taken to the federal commission · 13% of citations on record
  • Settled 6 · 75%
  • Stood as issued 1 · 13%
  • Vacated or withdrawn 1 · 13%
0%
S&S designation survived the contest
ⓘ Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 3 decided S&S contests · industry: 79%
72%
Penalty reduction in decided contests
$3K proposed, $938 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 2025-09-02.
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.
Docket Decision Judge Year Proposed / upheld
LAKE 2025-0328 Settlement Paez 2026 $3K → $377
LAKE 2015-0684 Settlement Rae 2016 $200 → $100
LAKE 2016-0287 Settlement Rae 2016 $200 → $200
LAKE 2024-0149 Settlement McCarthy 2024 $147 → $147
LAKE 2017-0033 Dismissal Rae 2016 $114 → $114
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2026-07-14
0%
of limit-tested samples over the exposure limit
9
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (9)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-07-14 Respirable dust, <.1mg 0 Mechanic
2026-07-14 Respirable dust, <.1mg 0 Mechanic
2023-08-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-08-30 Respirable dust, <.1mg 0 Cleanup Man
2017-03-22 Nuisance dust, respirable, <1% Qtz 0.21 10 0.02 Welder, etc.
2017-03-22 Respirable dust, <.1mg 0 Building Repair/Maint.
2017-03-22 Respirable dust, <.1mg 0 Building Repair/Maint.
2011-04-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-04-13 Respirable dust, <.1mg 0 Utility Man
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.

Lakemoor Pit recorded 4.23 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.
4.23
total case rate
4.23
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 Illinois, metal and nonmetal mining averaged 1.41 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 * 4.23 4.23 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 10.06 5.03 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 5.86 5.86 0.000
2018 * 7.80 7.80 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. Thelen Sand & Gravel, Inc. 2010 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 17
2025 19
2024 20
2023 19
2022 20
2021 19
2020 17
2019 17
2018 12
2017 10
2016 7
2015 6
2014 5
2013 12
2012 3
2011 3
2010 3
Source: MSHA quarterly employment and production, updated weekly.

Lakemoor Pit sits in McHenry County, Illinois, 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.
McHenry County, Illinois · Population 311,366
0.1%
Mining share of county employment
$102,836
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 11,040 0 0 0.0
2026 Q1 6,015 0 0 0.0
2025 Q4 9,694 0 0 0.0
2025 Q3 15,367 0 0 0.0
2025 Q2 15,360 4 0 260.4
2025 Q1 6,837 2 0 292.5
2024 Q4 10,879 0 0 0.0
2024 Q3 11,962 0 0 0.0
Show 57 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 11,088 6 1 541.1
2024 Q1 8,432 4 0 474.4
2023 Q4 9,910 0 0 0.0
2023 Q3 11,135 0 0 0.0
2023 Q2 11,559 1 0 86.5
2023 Q1 6,769 0 0 0.0
2022 Q4 10,379 1 0 96.3
2022 Q3 13,242 0 0 0.0
2022 Q2 10,213 1 0 97.9
2022 Q1 5,940 2 0 336.7
2021 Q4 10,152 0 0 0.0
2021 Q3 10,602 0 0 0.0
2021 Q2 11,099 0 0 0.0
2021 Q1 5,795 1 0 172.6
2020 Q4 9,216 0 0 0.0
2020 Q3 10,289 0 0 0.0
2020 Q2 9,199 2 1 217.4
2020 Q1 5,300 3 1 566.0
2019 Q4 8,870 0 0 0.0
2019 Q3 9,450 0 0 0.0
2019 Q2 10,762 3 0 278.8
2019 Q1 5,075 1 0 197.0
2018 Q4 7,906 0 0 0.0
2018 Q3 7,758 0 0 0.0
2018 Q2 6,725 0 0 0.0
2018 Q1 3,263 0 0 0.0
2017 Q4 4,951 0 0 0.0
2017 Q3 5,898 0 0 0.0
2017 Q2 6,703 1 0 149.2
2017 Q1 3,916 3 0 766.1
2016 Q4 4,090 0 0 0.0
2016 Q3 4,623 2 0 432.6
2016 Q2 4,615 0 0 0.0
2016 Q1 2,242 2 0 892.1
2015 Q4 3,231 0 0 0.0
2015 Q3 3,733 1 0 267.9
2015 Q2 3,292 0 0 0.0
2015 Q1 2,220 0 0 0.0
2014 Q4 2,635 0 0 0.0
2014 Q3 3,314 0 0 0.0
2014 Q2 1,416 0 0 0.0
2014 Q1 434 0 0 0.0
2013 Q4 3,603 6 0 1665.3
2013 Q3 3,210 0 0 0.0
2013 Q2 2,918 2 0 685.4
2013 Q1 192 0 0 0.0
2012 Q4 1,812 0 0 0.0
2012 Q3 1,820 0 0 0.0
2012 Q2 1,432 3 0 2095.0
2012 Q1 187 0 0 0.0
2011 Q4 1,341 0 0 0.0
2011 Q3 2,094 0 0 0.0
2011 Q2 1,312 1 0 762.2
2011 Q1 286 0 0 0.0
2010 Q4 1,519 0 0 0.0
2010 Q3 1,591 4 1 2514.1
2010 Q2 751 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2025 · 1 incident

May 14, 2025 IL · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech FALLING/SLIDING/ROLLING MATERIALS
Thelen Sand & Gravel, Inc. · Struck by falling object

Two employees had set a beater return roller on a lower frame part of the stacker frame of the conveyor; the roller slipped out from the frame and came into contact with injured employee's index finger.

2022 · 2 incidents

August 27, 2022 IL · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Thelen Sand & Gravel, Inc. · Contact with hot objects or substances

EE got blisters from a hot sheave. The bearing had gone out on a screen which heated up the sheave. The contact with the sheave caused small blisters on EE's hand.

February 17, 2022 IL · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler SLIP OR FALL OF PERSON
Thelen Sand & Gravel, Inc. · Fall from machine

EE was dismounting the excavator for the end of shift. EE had three points of contact while dismounting and slipped off the foot peg on the middle of the track, which is 18 inches off of the ground.

2019 · 1 incident

May 2, 2019 IL · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Thelen Sand & Gravel, Inc. · Struck against a moving object

Employee was operating a front-end loader and jarred left arm in rough terrain. Left arm muscle strain. Did not become reportable until after Clinic follow-up on May 10, 2019.

2018 · 1 incident

September 11, 2018 IL · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Thelen Sand & Gravel, Inc. · Struck by flying object

Installing counterweight pulley on field conveyor. Tele-handler and come-along holding pulley on either side of conveyor. Come-along cable snapped. Pulley swung back and struck middle finger of right hand.

2012 · 1 incident

August 27, 2012 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Thelen Sand & Gravel, Inc. · Over-exertion (Not Elsewhere Classified)

Boulder got stuck in jaw crusher. Had to use a pry bar to remove boulder.

2011 · 1 incident

November 5, 2011 IL · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Thelen Sand & Gravel, Inc. · Struck by... (Not Elsewhere Classified)

Using a 70 lb. jackhammer to release a wear plate in a Cedar Rapids MVP 280 portable crushing plant, cone. the jackhammer slipped causing the right hand little finger nail to bend back away from the finger. Stitches were needed to reattach grown plate of finger nail.