Mining Incidents

Portable Plant #6 Metal/Non-Metal

Cornejo & Sons, LLC · Surface
Controlled by Summit Materials LLC
Erie, Neosho County, KS  ·  Active
MSHA Mine ID: 1401828

Portable Plant #6 has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2026
Latest incident
Mar 2026
Compliance record
MSHA citations since 2022
9
citations
3
significant & substantial
$3,210
proposed penalties
$3,210
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2022
12
inspections on record
161
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: 161 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Plant #6 has $3K in proposed MSHA penalties and $0 outstanding across 0 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
9 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-30.
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 6,552 1 1 152.6
2025 Q3 7,451 2 0 268.4
2025 Q2 6,791 0 0 0.0
2025 Q1 5,361 0 0 0.0
2024 Q4 5,024 2 1 398.1
2024 Q3 6,220 0 0 0.0
2024 Q2 4,747 2 0 421.3
2024 Q1 4,748 0 0 0.0
Show 7 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,275 0 0 0.0
2023 Q3 5,772 1 1 173.3
2023 Q2 4,686 0 0 0.0
2023 Q1 4,462 0 0 0.0
2022 Q4 4,803 1 0 208.2
2022 Q3 7,475 0 0 0.0
2022 Q2 890 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2026 · 1 incident

March 24, 2026 KS · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Cornejo & Sons, LLC · Over-exertion (Not Elsewhere Classified)

Employee was running through the plant area and felt a pop in EE's left hamstring area. Injury is believed to be a strained or pulled hamstring.

For insurers, brokers, and safety consultants

The full compliance file on Portable Plant #6

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.