Mining Incidents

Rock Hill Quarry Metal/Non-Metal

Rock Hill, York County, SC  ·  Active
MSHA Mine ID: 3800026

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Fatalities
0
Total incidents
15
Years on record
2001–2025
Latest incident
Dec 2025
Compliance record
MSHA citations since 2000
117
citations
23
significant & substantial
$37,002
proposed penalties
$32,646
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 2,769 0 0 0.0
2025 Q3 1,906 1 0 524.7
2025 Q2 7,419 0 0 0.0
2024 Q4 8,058 0 0 0.0
2024 Q3 3,461 0 0 0.0
2024 Q2 8,662 4 0 461.8
2024 Q1 8,070 5 2 619.6
2023 Q4 2,417 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

15 on file

2025 · 1 incident

December 3, 2025 SC · Metal/Non-Metal welder (non-shop) MACHINERY
Martin Marietta Materials, Inc. · Struck by flying object

Loosening a bolt with with an impact wrench and socket wrench. Hand slipped off wrench and was struck in face.

2024 · 1 incident

September 23, 2024 SC · Metal/Non-Metal FIRE
Martin Marietta Materials, Inc. · Accident type, without injuries

A fire occurred on a CAT 775G haul truck. There were no injuries associated with this incident. Incident is still under investigation.

2021 · 1 incident

2020 · 1 incident

March 6, 2020 SC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Martin Marietta Materials, Inc. · Caught in, under or between a moving and a stationary object

Employee was swinging ram to strike wrench to tighten the nut on a crusher. As the employee pushed the ram forward, the right hand slipped and was between the ram and the wrench as it made contact.

2019 · 2 incidents

May 20, 2019 SC · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Caught in, under or between a moving and a stationary object

Employee was handling cutting edge and finger was caught between edge and bucket.

January 14, 2019 SC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Martin Marietta Materials, Inc. · Over-exertion (Not Elsewhere Classified)

Employee was carrying a fire extinguisher and tripped coming down some steps rolling EE's ankle

2016 · 1 incident

September 1, 2016 SC · Metal/Non-Metal outside foreman, leadman POWERED HAULAGE
Martin Marietta Materials, Inc. · Struck against a moving object

The employee was operating a Genie S-60 Manlift. While navigating a downgrade, employee drove over a small pile of rocks causing the manlift to shift, jolting the operator. When the operator shifted, they planted their leg causing a hairline fracture.

2011 · 1 incident

November 8, 2011 SC · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
Martin Marietta Materials, Inc. · Struck by falling object

Employee was removing a two piece v-belt guard. The top piece of the guard was removed, one of the bolts out of the underside of the lower piece of guard slipped down and hit his right arm just above the wrist causing a laceration. He received four sutures making this a reportable medical.

2010 · 1 incident

July 15, 2010 SC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Martin Marietta Materials, Inc. · Struck by... (Not Elsewhere Classified)

Employee was washing down the walkway around the #1 screen when the feed chute stopped up causing some rock to spill out. A small one hit him on the arm, then as he turned to move out of the way a bigger rock hit the back of his hard hat penetrating it and causing a small laceration on the back of his head that required three stitches.

2009 · 1 incident

April 17, 2009 SC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Struck against stationary object

Cut left index finger with worn bolt while replacing wear segments on pit loader bucket. ** Employee required five stitches/sutures making this a medical reportable, with no restricted duty & no lost time.

2005 · 2 incidents

October 21, 2005 SC · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Struck by falling object

FOREMAN WAS HELPING UNLOAD TWO JAW DIES WHEN THE CHAINS SLIPPED OFF ABOUT ONE FOOT OFF THE GROUND. THE FOREMAN PUT HIS HANDS UP TO BLOCK THE CHAINS AS THEY CAME TOWARDS HIM. THE CHAIN HIT HIS LEFT LITTLE FINGER LACERATING THE BOTTOM SIDE REQUIRING NINE STITCHES. NO FRACTURE WAS DETECTED.

September 6, 2005 SC · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Struck against stationary object

EMPLOYEE WAS CHANGING OXYGEN & ACETELYNE BOTTLES WHEN HE PUSHED HIS RIGHT MIDDLE FINGERNAIL UP. HE HAD HIS RIGHT HAND AROUND THE BOTTLE SLIDING IT ON THE TRUCK WHEN HIS FINGER CAME INTO CONTACT WITH A PIECE OF METAL AT THE BACK OF THE BOTTLE RACK. STITCHES WERE USED MAKING THIS A REPORTABLE MEDICAL.

2004 · 1 incident

April 30, 2004 SC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Martin Marietta Aggregates · Unclassified, insufficient data

STRAIN RIGHT KNEE BECAME REPORTABLE ON 5/21/04

2001 · 2 incidents

May 3, 2001 SC · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Caught in, under or between (Not Elsewhere Classified)

MOVING TOGGLE BEAM INTO PLACE USING A COME-ALONGHOIST, BEAM MOVED SEVERAL INCHES, MASHING FINGERBETWEEN TOGGLE BEAM AND FRAME OF JAW CRUSHER. INJURY REQUIRED 23 STITCHES. FINGER ALSO BROKEN.

January 24, 2001 SC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS PUNCHING A HOLE IN A CONVEYER BELT WITH A PUNCH AND HAMMER, WHEN HE HIT THE BACK OF HIS LEFT HAND WITH A HAMMER CAUSING INJURY WHICH REQUIRED 14 STITCHES.