Mining Incidents

Columbus Region Plant Metal/Non-Metal

Delaware, Delaware County, OH  ·  Active
MSHA Mine ID: 3300123

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Fatalities
0
Total incidents
59
Years on record
2000–2026
Latest incident
Jan 2026
Compliance record
MSHA citations since 2000
356
citations
63
significant & substantial
$57,338
proposed penalties
$55,309
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 33,480 14 1 418.2
2025 Q3 32,334 21 5 649.5
2025 Q2 7,059 0 0 0.0
2024 Q4 20,475 0 0 0.0
2024 Q3 26,122 12 5 459.4
2024 Q2 29,388 13 0 442.4
2024 Q1 20,623 2 2 97.0
2023 Q4 21,357 7 2 327.8
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

59 on file

2026 · 1 incident

January 14, 2026 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

Miner was in the process of using a pocketknife to cut EE's food and cut the palm of EE's left hand just below the index finger. This resulted in the Miner receiving three sutures.

2025 · 3 incidents

December 26, 2025 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
The National Lime & Stone Company · Struck by flying object

Employee was at primary crusher for plant 17 checking for leaks on a skid steer when a rock came out of the crusher causing a small laceration above their left eye.

July 28, 2025 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
The National Lime & Stone Company · Contact with hot objects or substances

Employee was helping install a plate in the top apron of the primary crusher when the plate they were holding slipped and came in contact with their neck. The plate had just been cut to fit in place and still was hot, welder was going to weld into place with employee holding it for them.

February 18, 2025 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall from machine

Employee climbed on C20 counterweight guard to remove ice from bend pulley when EE slipped and fell fracturing right wrist

2024 · 3 incidents

November 5, 2024 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall to the walkway or working surface

Employee was working on drill, removing radiator hose when employee stepped backward into a hole for the service hatch. Employee tried to catch self with left arm and felt pain in the left shoulder.

May 23, 2024 OH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
The National Lime & Stone Company · Struck by flying object

Employee was assisting another worker with a belt splice when EE was struck in the eye by a foreign object

March 8, 2024 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall onto or against objects

Employee was looking in the primary crusher to determine whether or not a rock was still wedged inside, preventing EE from closing the crusher. EE was standing on the adjacent drive belt guard at the time. EE slipped and fell, landing on a crate of tools on the catwalk below. Contusion to the right knee / Laceration to right arm resulting in 13 stitches.

2023 · 2 incidents

December 7, 2023 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
The National Lime & Stone Company · Over-exertion (Not Elsewhere Classified)

Employee has been diagnosed with trigger finger of right thumb and carpel tunnel of right hand resulting from operating front end loader for years. Employee is currently working w/no restrictions pending treatment determination from medical provider.

November 7, 2023 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall from ladders

Miner was at the garage using a pressure washer to clean off the top the skid steer. EE was trying to stand up on bucket, came back down and pivoted on right foot, slipped and fell, hurting right ankle.

2022 · 3 incidents

July 29, 2022 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
The National Lime & Stone Company · Struck against a moving object

EE was reversing an L350H front end loader down the ramp that leads to the primary crusher. As the EE was reversing, EE cut the turn too close to the berm that lines both sides of the ramp. EE's right tires went on top of the berm, causing the FEL to tip over on its left side. EE sustained a dislocated left shoulder, and there was heavy damage to the left side of the FEL.

March 17, 2022 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Caught in, under or between a moving and a stationary object

While assisting install a loader bucket pin, the pin slipped and thumb was caught between pin and loader bucket.

January 3, 2022 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Caught in, under or between a moving and a stationary object

While completing maintenance activities, miner smashed EE's middle finger between the head of a sledge hammer and the cone crusher body.

2021 · 3 incidents

September 13, 2021 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in lifting objects

While working on FS1 changing screens, back started hurting as day went on.

May 1, 2021 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
The National Lime & Stone Company · Struck by rolling or sliding object

Employee was helping with wash plant screen replacement. Another employee rolled a second bad screen down the stairs where it hit the employee lacerating EE's skin at the knee and requiring 10 stitches.

March 26, 2021 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

During installation of a gear reducer sheave, employee was using a pry bar to position the taper lock and align bolt holes. The pry bar slipped and stuck employee in the face.

2020 · 1 incident

March 27, 2020 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Caught in, under or between a moving and a stationary object

While replacing an acetylene tank on a maintenance truck, the tank slipped and pinched the left hand middle finger between the tank and holding enclosure resulting in 6 stitches.

2018 · 1 incident

May 3, 2018 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

Cutting bearing off shaft, grinder kicked back and hit left hand cutting it open. Required stitches to close.

2017 · 1 incident

August 16, 2017 OH · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker SLIP OR FALL OF PERSON
The National Lime & Stone Company · Over-exertion (Not Elsewhere Classified)

Employee tripped on a rock and twisted employee's body trying to catch self resulting in back pain.

2016 · 1 incident

May 19, 2016 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Over-exertion in pulling or pushing objects

Employee was prying on a conveyor leg and felt pain in lower back when EE got up.

2015 · 2 incidents

December 18, 2015 OH · Metal/Non-Metal drill operator HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in lifting objects

Employee lifted a drill hammer and felt a "pop" in lower stomach. Company received medical reports on 2/9/16 confirming a hernia. Employee has and will, continue to work until he has surgery, which has not yet been scheduled.

2013 · 3 incidents

November 6, 2013 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall from ladders

Employee was climbing an extension ladder to tie off the top when his foot slipped and he fell about 5 feet, breaking three ribs and collapsing a lung.

May 31, 2013 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Struck by falling object

Employee was replacing a feeder plate. He had a 3/4 electric impact gun on a shelf above were he was working. When he reached over to put a crescent wrench on a bolt he caught the cord of the impact which pulled it off the shelf. It struck his left thumb.

2010 · 1 incident

July 15, 2010 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
The National Lime & Stone Company · Struck against a moving object

Employee was operating a skidsteer loader when he hit a bump and the seat bottomed out. This employee did not seek medical treatment until August 31. His first lost time day was August 31, 2010.

2009 · 3 incidents

October 31, 2009 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion (Not Elsewhere Classified)

Slipped while dismounting front-end loader causing a wrist sprain when he caught himself from falling. NOTE: This claim was originally contested. It was ruled a workplace accident by Ohio BWC on January 25, 2010.

September 2, 2009 OH · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey POWERED HAULAGE
The National Lime & Stone Company · Caught in, under or between running or meshing objects

On top of truck repairing drive for auger unit on truck. Employee was running drive to check alignment on sprocket and chain. The unit was stopped so he could tighten set screw on key way for sprocket. The control was bumped and auger started to run, catching his index finger on left hand.

January 19, 2009 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall from ladders

Employee was climbing a ladder when it slid out from under him, causing him to fall. Ladder was set up on snow and ice. Diagnosed with left hip pain.

2008 · 1 incident

May 15, 2008 OH · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor MACHINERY
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

Employee struck a chipping hammer with another hammer, causing a chip to break off, striking him in the knee. Resulting laceration required stitches to close.

2006 · 4 incidents

July 21, 2006 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

Employee was cutting a piece of rubber belting with a utility knife when the knife slipped, cutting his leg. Laceration required stitches to close.

March 26, 2006 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in lifting objects

Employee was lifting a barrel of grease onto the service truck and felt a "pop" and pain in his right shoulder.

January 25, 2006 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall to the walkway or working surface

Slipped and fell as he exited the S-9 discharge hopper.

January 11, 2006 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in lifting objects

Employee was lifting an oxygen cyclinder and felt pain in his lower back.

2005 · 1 incident

2003 · 6 incidents

September 24, 2003 OH · Metal/Non-Metal NO VALUE FOUND

WAS PULLING TAILPULLEY GUARD OUT OF THE WAY. FELT PAIN IN LOWER ABDOMEN.

August 4, 2003 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

GOT PIECE OF DIRT IN EYE WHILE RUNNING ROCKBREAKER.

July 15, 2003 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall from machine

WAS ADJUSTING BELT SCRAPPER, LOST HIS BALANCE AND FELL 5 FEET TO THE GROUND.

July 11, 2003 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
The National Lime & Stone Company · Struck against a moving object

WHILE RUNNING LOADER, WENT THROUGH A DIP IN THE ROAD AND HURT HIS SIDE.

June 4, 2003 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
The National Lime & Stone Company · Struck by flying object

WAS TRAMMING FRONT END LOADER FROM SHOT LOADING AREA TO STOCKPILE. BUCKET DUG INTO GROUND, STOPPING LOADER. IMPACT BROKE LOADER DUMP CYLINDER & A PIECE OF WHICH STRUCK WINDSHIELD OF LOADER. OP ERATOR WAS STRUCK BY FLYING GLASS.

2002 · 3 incidents

July 3, 2002 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Caught in, under or between (Not Elsewhere Classified)

MOVING GATE ABOVE SCREEN, GATE FELL PINCHING HAND BETWEEN HANDLE AND BOLT FLANGE.

March 12, 2002 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in pulling or pushing objects

WAS PULLING A PIECE OF CHAIN FROM A PILE AND FELT A POP IN HIS BACK.

February 7, 2002 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Over-exertion in wielding or throwing objects

HE WAS THROWING WOODEN PALLET INTO LOADER BUCKET AND NAIL CAUGHT GLOVE, JERKING ARM. NOTE: THIS CLAIM IS BEING CONTESTED.

2001 · 7 incidents

October 3, 2001 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
The National Lime & Stone Company · Struck against stationary object

EE WAS LEAVING PLANT PROPERTY AFTER CLOCKING OUTAT END OF SHIFT. LOST CONTROL OF HIS PERSONAL VEHICLE CAUSING A ROLL-OVER. HE WAS EJECTED FROM VEHICLE.

August 20, 2001 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Caught in, under or between (Not Elsewhere Classified)

PLACING OUTRIGGER PADS ON CRANE. CAUGHT FINGERS BETWEEN PAD AND PAD STORAGE RACK.

June 13, 2001 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
The National Lime & Stone Company · Over-exertion (Not Elsewhere Classified)

SLIPPED ON OIL ON PLATFORM, FELT PAIN IN BACK. NOTE: THIS CLAIM IS BEING CONTESTED BY THE COMPANY.

January 27, 2001 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
The National Lime & Stone Company · Fall onto or against objects

EE SLIPPED WHILE CLEANING UNDER CONVEYOR, STRIKING HEAD ON CONVEYOR FRAME.

2000 · 9 incidents

November 20, 2000 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
The National Lime & Stone Company · Struck by... (Not Elsewhere Classified)

WHILE EE WAS LIFTING 3 INCH METAL BLOCK INTO PLACE IT SLIPPED AND BENT HIS THUMB BACK.

November 14, 2000 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
The National Lime & Stone Company · Struck by flying object

ROCK HIT WINDOW OF FRONT END LOADER BREAKING IT.PIECE OF GLASS FLEW IN EYE.

August 15, 2000 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
The National Lime & Stone Company · Over-exertion in pulling or pushing objects

USING BAR TO CLEAR PLUGGED FEEDER, FELT PAIN IN BACK.