Con-Agg Companies, LLC · Fall from machine
Employee fell while descending conveyor about 3', resulting in a 1" cut to right elbow and 2 stitches.
Columbia East Quarry Metal/Non-Metal
Martin Marietta Materials, Inc.
· Surface
Controlled by
Martin Marietta Materials Inc
Columbia,
Boone County,
MO
·
Abandoned
MSHA Mine ID: 2300078
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- Fatalities
- 0
- Total incidents
- 9
- Years on record
- 2002–2021
- Latest incident
- Sep 2021
Compliance record
MSHA citations since 2000
91
citations
24
significant & substantial
$23,821
proposed penalties
$23,461
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 Q1 | 174 | 0 | 0 | 0.0 |
| 2024 Q2 | 332 | 0 | 0 | 0.0 |
| 2023 Q2 | 0 | 0 | 0 | |
| 2023 Q1 | 2,464 | 0 | 0 | 0.0 |
| 2022 Q4 | 5,967 | 0 | 0 | 0.0 |
| 2022 Q3 | 3,539 | 0 | 0 | 0.0 |
| 2022 Q2 | 3,357 | 0 | 0 | 0.0 |
| 2022 Q1 | 2,568 | 4 | 1 | 1557.6 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.
Reportable incidents
9 on file2021 · 1 incident
2020 · 1 incident
Con-Agg Companies, LLC · Struck by... (Not Elsewhere Classified)
Oxygen hose on cutting torch set broke and made a loud "pop" causing the miner's left ear to ring and left eye to see blue and red dots. Miner was taken to ER and evaluated, released to duty with restrictions until follow up apt. Possible concussion. No other physical visible injuries.
2016 · 1 incident
Con-Agg Companies, LLC · Struck by flying object
The wind blew a piece of metal into left eye while grinding. No lost time, full duty, no restrictions, prescribed antibiotic ointment
2011 · 1 incident
Con-Agg Companies, LLC · Unclassified, insufficient data
Mine worker found an apparent dead body in pit area. Notified supervisor who notified 911 service and MSHA. Authorities determined deceased was a 17 year old male and not employed by Con Agg of MO, LLC. MSHA inspector completed the investigation for MSHA.
2007 · 1 incident
August 15, 2007
MO · Metal/Non-Metal
front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator
DISORDERS (PHYSICAL AGENTS)
Con-Agg Companies, LLC · Contact with heat
Temperatures were near or at 100 that day. Had been performing maintenance on the air conditioning on the loader. Then, had loaded 3 trucks. Then became dizzy, had shortness of breath, loss of control of movement and almost blacked out. Due to dehydration. NOTE: Late report due to possible non work related condition.
2003 · 1 incident
Con-Agg Companies, LLC · Fall from machine
EE WAS CLIMBING OFF OF HIS TRUCK & SLIPPED ON A STEP & FELL 2' & HURT HIS RIGHT ANKLE AND FOOT.
2002 · 3 incidents
June 4, 2002
MO · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Con-Agg Companies, LLC · Struck by falling object
EE WAS UNPLUGGING CHUTE WHEN A ROCK FELL AND HITTHE LEFT SIDE OF HIS FACE.
March 6, 2002
MO · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDLING OF MATERIALS
Con-Agg Companies, LLC · Absorption of radiations, caustics, toxic and noxious substances
EE WAS POURING CONCRETE AT THE QUARRY. HE HAD RUBBER BOOTS ON BUT SOME CONCRETE GOT ON THE BACK SIDE OF HIS LEGS.
March 5, 2002
MO · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
MACHINERY
Con-Agg Companies, LLC · Struck by... (Not Elsewhere Classified)
EE WAS USING A GRINDER ON THE SOUTH WALL WHEN A PIECE OF STEEL GOT IN HIS LEFT EYE.