Key Takeaway
Portable Crusher is a intermittent surface mine producing SandAndGravel, located in Buffalo, Johnson County, WY. It has 33 violations on record (8 S&S) and $6K in proposed penalties. Operated by Mullinax Inc.
Portable Crusher
Operator: Mullinax Inc
Controller: Nathan Mullinax
Location: Buffalo, Johnson County, WY
Employees: 6
Recent Violations
View all 33 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/05/2026 | 56.14132(b)(1)(iv) | Non-S&S | LowNegligence | $0 |
| 10/21/2024 | 56.20008(a) | Non-S&S | LowNegligence | $147 |
| 01/30/2024 | 56.14131(b) | Non-S&S | ModNegligence | $147 |
| 01/19/2024 | 56.11001 | Non-S&S | LowNegligence | $147 |
| 01/19/2024 | 56.12008 | Non-S&S | ModNegligence | $147 |
| 09/14/2023 | 56.14105 | S&S | ModNegligence | $905 |
| 07/18/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
| 07/18/2023 | 56.9315 | S&S | ModNegligence | $407 |
| 07/18/2023 | 56.14101(a)(3) | S&S | ModNegligence | $143 |
| 07/18/2023 | 56.14101(a)(3) | S&S | ModNegligence | $143 |
| 07/18/2023 | 56.11017 | Non-S&S | ModNegligence | $143 |
| 07/18/2023 | 56.12004 | Non-S&S | ModNegligence | $143 |
| 08/06/2021 | 56.14109 | S&S | LowNegligence | $125 |
| 08/06/2021 | 56.12028 | Non-S&S | LowNegligence | $125 |
| 08/05/2021 | 56.12030 | Non-S&S | ModNegligence | $125 |
| 08/05/2021 | 56.20008(b) | Non-S&S | ModNegligence | $125 |
| 04/20/2020 | 56.12028 | Non-S&S | LowNegligence | $123 |
| 03/26/2019 | 56.14132(a) | S&S | ModNegligence | $319 |
| 03/26/2019 | 56.14200 | S&S | ModNegligence | $319 |
| 03/26/2019 | 56.11012 | Non-S&S | ModNegligence | $121 |
Accidents & Injuries
View all 1 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 09/01/2023 | POWERED HAULAGE | DYS AWY FRM WRK & RESTRCTD ACT | 15d lost, 85d restricted |
Inspections
View all 28 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/05/2026 | 02/06/2026 | 12.00 | 2 |
| 06/04/2025 | 06/04/2025 | 11.00 | 1 |
| 11/21/2024 | 11/22/2024 | 12.00 | 1 |
| 10/21/2024 | 10/22/2024 | 18.00 | 1 |
| 09/24/2024 | 09/26/2024 | 24.00 | 1 |
| 05/22/2024 | 05/22/2024 | 2.75 | 1 |
| 05/22/2024 | 05/22/2024 | 1.50 | 1 |
| 01/19/2024 | 02/20/2024 | 40.25 | 1 |
| 01/18/2024 | 01/30/2024 | 17.00 | 1 |
| 09/14/2023 | 09/18/2023 | 5.00 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Portable Crusher have?
Portable Crusher has 33 MSHA violations on record, of which 8 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $6K.
What type of mine is Portable Crusher?
Portable Crusher is a Surface mine producing SandAndGravel, located in Buffalo, Johnson County, WY. It currently has 6 employees.
Has anyone been injured or killed at Portable Crusher?
According to MSHA records, Portable Crusher has 1 reported accident/injury records and 0 fatalities on file.
Who operates Portable Crusher?
Portable Crusher is operated by Mullinax Inc and controlled by Nathan Mullinax. MSHA Mine ID: 4801791.