Key Takeaway
Portable Plant #6 is a active surface mine producing Stone, located in Buffalo, Wilson County, KS. It has 9 violations on record (3 S&S) and $3K in proposed penalties. Operated by Cornejo & Sons, LLC.
Portable Plant #6
Operator: Cornejo & Sons, LLC
Controller: Summit Materials LLC
Location: Buffalo, Wilson County, KS
Employees: 10
Recent Violations
View all 9 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/30/2025 | 56.3200 | S&S | ModNegligence | $755 |
| 08/06/2025 | 56.15001 | Non-S&S | ModNegligence | $151 |
| 08/06/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 11/26/2024 | 56.9315 | Non-S&S | LowNegligence | $147 |
| 11/26/2024 | 56.12030 | S&S | ModNegligence | $797 |
| 04/12/2024 | 56.12006 | Non-S&S | LowNegligence | $147 |
| 04/12/2024 | 56.11001 | Non-S&S | ModNegligence | $147 |
| 08/17/2023 | 56.14130(g) | S&S | ModNegligence | $772 |
| 11/15/2022 | 56.14132(b)(2) | Non-S&S | LowNegligence | $143 |
Inspections
View all 11 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/29/2025 | 11/03/2025 | 30.25 | 1 |
| 08/06/2025 | 08/07/2025 | 14.25 | 1 |
| 11/26/2024 | 11/27/2024 | 16.75 | 1 |
| 04/12/2024 | 04/15/2024 | 17.00 | 1 |
| 02/07/2024 | 02/07/2024 | 13.25 | 1 |
| 09/14/2023 | 09/14/2023 | 10.50 | 1 |
| 08/16/2023 | 08/17/2023 | 11.75 | 1 |
| 11/28/2022 | 11/28/2022 | 5.00 | 1 |
| 11/15/2022 | 11/15/2022 | 9.50 | 1 |
| 09/21/2022 | 09/21/2022 | 12.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Portable Plant #6 have?
Portable Plant #6 has 9 MSHA violations on record, of which 3 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $3K.
What type of mine is Portable Plant #6?
Portable Plant #6 is a Surface mine producing Stone, located in Buffalo, Wilson County, KS. It currently has 10 employees.
Has anyone been injured or killed at Portable Plant #6?
According to MSHA records, Portable Plant #6 has 0 reported accident/injury records and 0 fatalities on file.
Who operates Portable Plant #6?
Portable Plant #6 is operated by Cornejo & Sons, LLC and controlled by Summit Materials LLC. MSHA Mine ID: 1401828.