Mining Incidents

Lakemoor Pit Metal/Non-Metal

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

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Fatalities
0
Total incidents
7
Years on record
2011–2025
Latest incident
May 2025
Compliance record
MSHA citations since 2010
59
citations
6
significant & substantial
$10,539
proposed penalties
$7,885
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 9,694 0 0 0.0
2025 Q3 15,367 0 0 0.0
2025 Q2 15,360 4 1 260.4
2025 Q1 6,161 2 0 324.6
2024 Q4 10,879 0 0 0.0
2024 Q3 11,286 0 0 0.0
2024 Q1 8,432 4 0 474.4
2023 Q4 9,234 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
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.