Mining Incidents

Troy Grove Stone Quarry (MC46) Metal/Non-Metal

Controlled by Riverstone Group
Utica, La Salle County, IL  ·  Active
MSHA Mine ID: 1102864

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Fatalities
0
Total incidents
22
Years on record
2000–2025
Latest incident
Jun 2025
Compliance record
MSHA citations since 2000
183
citations
34
significant & substantial
$29,566
proposed penalties
$27,848
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 7,163 5 0 698.0
2025 Q3 473 0 0 0.0
2025 Q2 7,825 1 0 127.8
2025 Q1 4,726 0 0 0.0
2024 Q4 6,365 4 1 628.4
2024 Q3 1,186 5 0 4215.9
2024 Q2 7,527 0 0 0.0
2023 Q4 6,342 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

22 on file

2025 · 1 incident

June 5, 2025 IL · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
RiverStone Group Inc · Struck by flying object

Employee utilized an air hammer to free a stuck part when part of the tooling broke off and punctured their arm.

2024 · 1 incident

February 27, 2024 IL · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
RiverStone Group Inc · Over-exertion (Not Elsewhere Classified)

Employee alleges employee was climbing down from a loader and employee's footing got caught on the catwalk and employee twisted right ankle.

2023 · 1 incident

August 12, 2023 IL · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
RiverStone Group Inc · Over-exertion in lifting objects

Employee alleges they were moving cable wires off of a truck and they heard their left shoulder pop.

2022 · 2 incidents

August 5, 2022 IL · Metal/Non-Metal dry screening plant operator, screen house operator HANDLING OF MATERIALS
RiverStone Group Inc · Over-exertion in pulling or pushing objects

Employee alleges the day before they were rolling some belting around but they didn't feel any pain until the next day employee wasn't sure if they injured themselves at work. Later after seeking medical attention they stated they did hurt their lower back at work. This is late reporting do to just receiving Dr. notes.

July 7, 2022 IL · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

Employee alleges employee was removing a drive belt guard on a screen and it popped out and struck employee in right arm and smashing employee's middle finger. Employee received stitches in arm. *Employee had surgery on Nov 14, 2022 and is losing time and is still off work.

2021 · 2 incidents

October 18, 2021 IL · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
RiverStone Group Inc · Over-exertion (Not Elsewhere Classified)

Employee alleges they were walking along side of the log feed and they stepped on some rocks twisting left knee.

August 2, 2021 IL · Metal/Non-Metal cleanup man, cleanup worker HANDTOOLS (NONPOWERED)
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

Employee alleges EE was taking a handrail off using a wrench and the wrench slip off a bolt hitting EE in the nose. Late Reporting due to the employee said EE's nose wasn't fractured. The Dr. notes came in on 09/03/21 and the notes stated EE had a nasal fracture.

2020 · 1 incident

May 28, 2020 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
RiverStone Group Inc · Caught in, under or between a moving and a stationary object

Employee alleges was using a prybar to remove a large rock from the conveyor, As EE was using the prybar, the rock got caught and cut EE's rt. middle finger. Employee did seek medical attention but was released. EE went back for medical treatment again on 10/15/20. A procedure was performed on EE's finger and EE is losing time as of 10/15/20.

2017 · 1 incident

March 3, 2017 IL · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker SLIP OR FALL OF PERSON
RiverStone Group Inc · Over-exertion (Not Elsewhere Classified)

Employee alleges was hooking a chain to a loader bucket and as EE turned to walk away left foot slipped into some mud, wet clay and rocks hurting left knee. Employee just seek medical attention on 4-19-17 and has some restrictions. We can accommodate the restrictions. This employee isn't losing anytime.

2013 · 1 incident

December 16, 2013 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
RiverStone Group Inc · Over-exertion (Not Elsewhere Classified)

EE alleges he was removing bolts from the wash screen with a driver guard and he turned to switch positions and he twisted his right knee.

2012 · 2 incidents

September 11, 2012 IL · Metal/Non-Metal drill operator SLIP OR FALL OF PERSON
RiverStone Group Inc · Fall to the walkway or working surface

Employee alleges another employee stepped on a trailer ball and slipped off and ran into him knocking him down. He hurt his left shoulder and his arm. Employee started losing time on 12/07/12. Late reporting due to just received Dr. notes on 01/10/2013.

January 23, 2012 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
RiverStone Group Inc · Fall to the walkway or working surface

Employee alleges he was walking and he slipped on some ice hurting his right wrist. We just received Dr. notes stating employee is loosing time as of 02/28/12 and is wearing a splint.

2011 · 2 incidents

September 16, 2011 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
RiverStone Group Inc · Struck against a moving object

Employee alleges he was driving loader to the crusher to haul rock and the loader jerked causing him to twist his lower back. We were just notified on 11-08-11 that he was going to be receiving his first epidural steroid injection. Depending on how he feels he could receive more. The employee is not loosing any time.

June 6, 2011 IL · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDLING OF MATERIALS
RiverStone Group Inc · Over-exertion (Not Elsewhere Classified)

Employee alleges he was placing blowbars in crusher and the rotar got stuck snapping the bar while his arm was still holding it causing a strain to his right elbow.

2010 · 1 incident

September 9, 2010 IL · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
RiverStone Group Inc · Fall to the walkway or working surface

Employee alleges he was walking down a small incline and he slipped on some rocks and he caught himself with his left hand. Just receive Dr. notes and this is reportable because he is to wear a splint on his left wrist just for protection.

2009 · 1 incident

October 26, 2009 IL · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
RiverStone Group Inc · Caught in, under or between (Not Elsewhere Classified)

Employee alleges he was loosening bolts on a blowbar with a impact gun and the bolts came loose pinning his hand between the crusher and impact gun bruising his left hand. *Late reporting due to employee was just scheduled for surgery on 12-18-09 and will start loosing time then.

2007 · 1 incident

March 6, 2007 IL · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

Employee alleges he was trying to roll logs in the washer; prybar slipped and cut his chin. He received 3 stitches.

2003 · 1 incident

May 2, 2003 IL · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE ALLEGES SHE WAS TRIMMING BUSHES AND THE HEDGE CLIPPER SLIPPED AND CUT HER LEFT POINTER FINGER.

2002 · 2 incidents

June 11, 2002 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

EE ALLEGES HE WAS LOWERING WIRE OVER HIGH WALL, THE WIRE FLEW OUT OF CONTROL & HIT HIS WRIST.

June 7, 2002 IL · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
RiverStone Group Inc · Over-exertion in lifting objects

EE ALLEGES HE WAS PUTTING STRAPS ON A PIECE OF PIPE AND AS HE LIFTED ONE END OF THE PIPE HE FELT A POP IN HIS LT. SHOULDER.

2001 · 1 incident

August 20, 2001 IL · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
RiverStone Group Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE ALLEGES HE WAS CUTTING A PIECE OF THE CONVEYOR BELT WITH A KNIFE AND IT SLIPPED AND CUT HIM ON HIS RIGHT LEG.

2000 · 1 incident

April 12, 2000 IL · Metal/Non-Metal drill helper HANDLING OF MATERIALS
RiverStone Group Inc · Over-exertion in pulling or pushing objects

EE ALLEGES HE WAS PUSHING AND PULLING TRYING TO ALIGN THE CONVEYOR UP AND HE STARTED FEELING PAIN IN HIS BACK AND RIGHT LEG.