Mining Incidents

SLIPPERY ROCK Metal/Non-Metal

Slippery Rock, Butler County, PA  ·  Active
MSHA Mine ID: 3606146

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Fatalities
0
Total incidents
22
Years on record
2000–2025
Latest incident
Nov 2025
Compliance record
MSHA citations since 2000
151
citations
23
significant & substantial
$20,139
proposed penalties
$17,734
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 13,876 0 0 0.0
2025 Q3 13,918 0 0 0.0
2025 Q2 14,756 1 0 67.8
2025 Q1 15,625 1 0 64.0
2024 Q4 13,860 0 0 0.0
2024 Q3 15,475 0 0 0.0
2024 Q2 14,076 1 0 71.0
2024 Q1 13,446 1 0 74.4
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

November 6, 2025 PA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Allegheny Mineral Corp · Struck by... (Not Elsewhere Classified)

IP was attempting to find a leak in a hydraulic system on EE's repump truck. While moving a line, hydraulic fluid was injected into right hand index finger.

2022 · 2 incidents

February 3, 2022 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
Allegheny Mineral Corp · (Not Elsewhere Classified)

Employee's audiogram identified a reportable standard threshold shift.

February 3, 2022 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer DISORDERS (REPEATED TRAUMA)
Allegheny Mineral Corp · (Not Elsewhere Classified)

Employee's audiogram identifies a reportable standard threshold shift.

2020 · 1 incident

December 15, 2020 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Allegheny Mineral Corp · Struck by... (Not Elsewhere Classified)

Employee was cutting a hose fitting off an airline and the knife slipped and lacerated EE's left pinky finger. EE received 3 sutures to close the laceration.

2019 · 1 incident

October 5, 2019 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion in lifting objects

Employee was lifting a 5 gallon bucket of oil and EE felt a pop in EE's left arm. EE was diagnosed with a torn bicep muscle.

2016 · 1 incident

June 22, 2016 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Allegheny Mineral Corp · Struck by... (Not Elsewhere Classified)

A chain the employee was using to pull tracks for a dozer broke and struck the employee in the left forearm causing a distal radius fracture.

2014 · 1 incident

July 21, 2014 PA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Allegheny Mineral Corp · Fall from machine

Employee was conducting his pre-shift inspection on Cat 777 haul. When he went to descend the truck using the ladder on the cab side, his foot slipped and he fell from the walkway. He suffered bruises to his left shoulder, left foot and left leg.

2013 · 1 incident

June 12, 2013 PA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STRIKING OR BUMPING
Allegheny Mineral Corp · Struck against stationary object

Employee was assisting a mechanic who was repairing a CAT 992 Loader when he rubbed against a sharp object that was being repaired and he received a laceration on his left shin. The laceration required 4 sutures.

2012 · 1 incident

August 15, 2012 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion in lifting objects

Employee was lifting a cabinet into a loader bucket when he injured his bicep. He went to a physician who referred him to an orthopedic specialist.

2010 · 2 incidents

July 19, 2010 PA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver STRIKING OR BUMPING
Allegheny Mineral Corp · Struck against stationary object

While greasing the water truck, the employee stood up at the rear of the truck. While standing up, the mudflap knocked his hard hat off and he hit his head on the hose reel. Went to emergency room and received 9 staples.

April 21, 2010 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Allegheny Mineral Corp · Fall onto or against objects

After plant shutdown, the employee inspected area and then began spraying down the plant. A piece of mud was dislodged from the plant and slid into the employee causing him to land on a steel support member. The accident resulted in 2 broken ribs.

2009 · 2 incidents

October 9, 2009 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion (Not Elsewhere Classified)

Employee was sliding return roller off of shelf and it began to fall, when he caught the roller he felt a pain in his right shoulder. Employee attended physical therapy and then had surgery to repair damage.

March 28, 2009 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Allegheny Mineral Corp · Over-exertion (Not Elsewhere Classified)

The original injury date was 3/28/09 when the employee was tightening an overhead bolt on the crusher and he felt a pain in his right shoulder. The employee was not placed on restricted duty or incur any lost time as a result of this injury until 5/20/09 when he had surgery.

2007 · 1 incident

October 16, 2007 PA · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion in lifting objects

While dumping a bucket of limestone, he pulled a muscle in lower back. He required pain medication.

2006 · 1 incident

June 26, 2006 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion (Not Elsewhere Classified)

The injured man felt a pull in his shoulder when loosening a very tight bolt. He reported the incident, but felt that no medical attention was required. He has not missed any work, but went to Dr. 7/14/06, and was diagnosed with tendinitis and he has lifting restrictions until further notice.

2005 · 1 incident

February 14, 2005 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Allegheny Mineral Corp · Caught in, under or between a moving and a stationary object

The man was removing a shaft when the shaft moved and pinched his little right hand finger against the frame. The finger required stitches but there was no lost time.

2003 · 1 incident

August 14, 2003 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Allegheny Mineral Corp · Fall from machine

THE MAN WAS DISMOUNTING A CAT D6 DOZER, WHEN STEPPING FROM THE TRACKS TO THE BLADE ARM WITH OUT 3 POINTS OF CONTACT, HE FELL AND CRACKED A BONE IN HIS RIGHT WRIST. A CAST WAS APPLIED AND HE IS BACK TO WORK AT SAME JOB WITH NO LOST TIME.

2002 · 3 incidents

July 31, 2002 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ALL OTHER OCCUPATIONAL ILLNESSES
Allegheny Mineral Corp · (Not Elsewhere Classified)

THE INJURED MAN WAS OPERATED ON HIS RIGHT SHOULDER FOR A BONE SPUR THAT THE DOCTOR SAID COULD HAVE BEEN CAUSED BY HIS SHOULDER MOTION WHILE WORKING AS A MECHANIC.

July 9, 2002 PA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion in lifting objects

ON 10/13/93 EE WAS DIAGNOSED WITH A HERNIA FROM LIFTING OIL DRUMS. NO ACTION WAS NECESSARY UNTIL NOW. HE REQUIRES AN OPERATION TO REPAIR HERNIA.

June 12, 2002 PA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Allegheny Mineral Corp · Fall onto or against objects

THE INJURED SLIPPED AND FELL, LACERATING A FINGER ON A SHARP ROCK. SURGERY WILL BE REQUIRED TO REPAIR A TENDON. WILL BE OFF WORK POSSIBLY 2 WEEKS.

2001 · 1 incident

September 8, 2001 PA · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)
Allegheny Mineral Corp · Caught in, under or between (Not Elsewhere Classified)

THE INJURED PINCHED HIS LEFT THUMB BETWEEN A PRY BAR AND A SURFACE, LACERATING HIS LEFT THUMB, WHICH REQUIRED STITCHES.

2000 · 1 incident

January 24, 2000 PA · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Allegheny Mineral Corp · Over-exertion in lifting objects

THE INJURED MAN WAS REMOVING ICE FROM A 35 GAL DRUM WHICH HE WOULD BE USING. WHEN HE DUMPED THE BROKEN ICE FROM THE DRUM HE EXPERIENCED PAIN IN HIS LOWER BACK. HE WILL REQUIRE THERAPY BEFORE R ETURNING TO WORK.