Mining Incidents

Columbus Plant Metal/Non-Metal

Controlled by Summit Materials LLC
Columbus, Colorado County, TX  ·  Active
MSHA Mine ID: 4104393

Columbus Plant has $19K in proposed MSHA penalties and $218 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
12
Years on record
2008–2026
Latest incident
Apr 2026
Compliance record
MSHA citations since 2003
109
citations
32
significant & substantial
$19,108
proposed penalties
$18,890
paid to date
99% of proposed penalties paid to date, a $218 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
67
inspections on record
844
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 844 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Columbus Plant has $19K in proposed MSHA penalties and $218 outstanding across 1 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$19K
proposed penalties
$19K
current assessed
$19K
paid to date
$218
outstanding
108 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-02-17.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 19,101 0 0 0.0
2025 Q3 17,890 0 0 0.0
2025 Q2 19,541 3 0 153.5
2025 Q1 18,780 1 0 53.2
2024 Q4 18,668 0 0 0.0
2024 Q3 19,634 1 0 50.9
2024 Q2 19,430 0 0 0.0
2024 Q1 17,582 0 0 0.0
Show 84 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 18,030 0 0 0.0
2023 Q3 20,130 0 0 0.0
2023 Q2 20,977 0 0 0.0
2023 Q1 19,961 0 0 0.0
2022 Q4 20,139 0 0 0.0
2022 Q3 19,430 0 0 0.0
2022 Q2 16,131 2 0 124.0
2022 Q1 18,926 0 0 0.0
2021 Q4 16,109 2 0 124.2
2021 Q3 13,358 0 0 0.0
2021 Q2 14,784 1 0 67.6
2021 Q1 15,653 0 0 0.0
2020 Q4 14,047 1 0 71.2
2020 Q3 10,864 0 0 0.0
2020 Q2 22,818 4 0 175.3
2020 Q1 22,118 0 0 0.0
2019 Q4 20,818 0 0 0.0
2019 Q3 24,598 5 1 203.3
2019 Q2 16,945 0 0 0.0
2019 Q1 15,722 4 1 254.4
2018 Q4 15,757 0 0 0.0
2018 Q3 17,827 0 0 0.0
2018 Q2 17,750 2 0 112.7
2018 Q1 15,024 0 0 0.0
2017 Q4 15,272 6 1 392.9
2017 Q3 12,723 0 0 0.0
2017 Q2 12,880 4 1 310.6
2017 Q1 12,148 0 0 0.0
2016 Q4 11,705 3 1 256.3
2016 Q3 12,227 0 0 0.0
2016 Q2 12,038 0 0 0.0
2016 Q1 11,857 0 0 0.0
2015 Q4 13,270 2 0 150.7
2015 Q3 15,770 0 0 0.0
2015 Q2 15,773 1 1 63.4
2015 Q1 13,267 4 0 301.5
2014 Q4 12,481 0 0 0.0
2014 Q3 12,408 9 5 725.3
2014 Q2 12,037 0 0 0.0
2014 Q1 9,823 1 1 101.8
2013 Q4 10,818 0 0 0.0
2013 Q3 14,014 0 0 0.0
2013 Q2 13,704 1 1 73.0
2013 Q1 12,427 0 0 0.0
2012 Q4 13,276 1 0 75.3
2012 Q3 15,098 0 0 0.0
2012 Q2 13,169 0 0 0.0
2012 Q1 9,376 0 0 0.0
2011 Q4 4,884 1 1 204.8
2011 Q3 6,054 0 0 0.0
2011 Q2 8,668 3 1 346.1
2011 Q1 9,483 0 0 0.0
2010 Q4 8,663 2 1 230.9
2010 Q3 9,832 0 0 0.0
2010 Q2 10,721 3 0 279.8
2010 Q1 9,632 0 0 0.0
2009 Q4 10,051 0 0 0.0
2009 Q3 10,308 2 1 194.0
2009 Q2 9,146 8 4 874.7
2009 Q1 11,830 0 0 0.0
2008 Q4 11,674 4 3 342.6
2008 Q3 13,409 0 0 0.0
2008 Q2 20,357 0 0 0.0
2008 Q1 20,578 0 0 0.0
2007 Q4 18,461 3 1 162.5
2007 Q3 22,100 2 0 90.5
2007 Q2 21,931 3 0 136.8
2007 Q1 23,530 0 0 0.0
2006 Q4 19,914 0 0 0.0
2006 Q3 23,065 8 2 346.8
2006 Q2 21,903 0 0 0.0
2006 Q1 18,200 0 0 0.0
2005 Q4 15,340 3 2 195.6
2005 Q3 13,561 0 0 0.0
2005 Q2 19,939 0 0 0.0
2005 Q1 18,928 0 0 0.0
2004 Q4 20,849 0 0 0.0
2004 Q3 19,848 2 0 100.8
2004 Q2 16,035 0 0 0.0
2004 Q1 16,274 0 0 0.0
2003 Q4 18,338 0 0 0.0
2003 Q3 16,092 3 1 186.4
2003 Q2 16,515 3 2 181.7
2003 Q1 10,521 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

12 on file

2026 · 1 incident

April 3, 2026 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Alleyton Resource Company, LLC. · Fall from scaffolds, walkways, platforms

EE stepped on platform of an isolated catwalk that collapsed beneath them causing them to fall approximately 7 feet to the next level. EE sustained superficial lacerations and bruising/soreness.

2021 · 1 incident

March 23, 2021 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Alleyton Resource Company, LLC. · Struck against a moving object

A Haul truck operator was loaded coming out of the pit struck a haul truck going into the pit to be loaded. The haul truck that was hit swerved abruptly to try and avoid being hit. The operator that was hit suffered low back pain, prescribed PT, pain meds and muscle relaxers. Damage to front left of one haul truck and both tires on the other.

2020 · 4 incidents

December 3, 2020 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Alleyton Resource Company, LLC. · Struck against a moving object

Employee operating loader under supervision when EE became stuck in sand stockpile being jarred and bounced causing lower back and tailbone pain, no report of any injury until 12/7/20, sent to clinic, prescribed lodine, terminated 12/7 for non-reporting

June 11, 2020 TX · Metal/Non-Metal POWERED HAULAGE
Multisource Sand & Gravel Co., LTD · Accident type, without injuries

While operating scraper, contractor began operating on a slope and recognized it was becoming steep. Contractor attempted to cut downhill; the right tire and side slipped while the left tire lost contact with the ground. Cab flipped onto right side. Contractor, who was wearing safety belt, was uninjured and able to exit the cab through the door.

June 11, 2020 TX · Metal/Non-Metal POWERED HAULAGE
Multisource Sand & Gravel Co., LTD · Accident type, without injuries

Contractor was operating scraper. While loading, the operator realized the slope was getting steep. EE turned out of the cut downhill. The (R)front tire slipped downhill and the (L)front tire came off the ground. The cab of the truck flipped over. EE turned the ignition off and was able to crawl out of the cab through the door. Operator was wearing the seatbelt and had no injuries.

February 21, 2020 TX · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
Multisource Sand & Gravel Co., LTD · Struck by... (Not Elsewhere Classified)

Employee was cutting a hose to length of a water line with a utility knife when the blade slipped and cut EE's left middle finger. EE was wearing gloves and cutting away from EE. EE was kneeling on the ground, cutting with EE's right hand, holding the hose with EE's left hand. EE was taken to the hospital and received one stitch on EE's left middle finger.

2018 · 1 incident

September 13, 2018 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Multisource Sand & Gravel Co., LTD · Over-exertion in pulling or pushing objects

Employee was in the process of changing out some fasteners on conveyor belt, when they pulled out wooden board they felt lower back pain.

2012 · 1 incident

September 17, 2012 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Stemco · Struck by... (Not Elsewhere Classified)

Cutting skirt board rubber misjudge.

2011 · 1 incident

June 23, 2011 TX · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Stemco · Contact with hot objects or substances

Co-worker was cutting bolt crusher return belt on side wiper. Employee was holding torch hose when he got burn right hand. No gloves on.

2010 · 1 incident

October 21, 2010 TX · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Stemco · Struck against stationary object

Smoothing fiberglass and got stuck in hand.

2009 · 1 incident

July 11, 2009 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Stemco · Fall from machine

Employee was greasing and checking guards and walkways and crossed over blocked off part of conveyor. Fell through the walkway.

2008 · 1 incident

December 5, 2008 TX · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler POWERED HAULAGE
Stemco · Fall from machine

Employee was greasing a conveyor when the conveyor was energized knocking the employee off the conveyor.

For insurers, brokers, and safety consultants

The full compliance file on Columbus Plant

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.