Key Takeaway
Portable Plant is a active surface mine producing SandAndGravel, located in Warren, Knox County, ME. It has 10 violations on record (2 S&S) and $2K in proposed penalties. Operated by ARC AGGREGATES LLC.
Portable Plant
Operator: ARC AGGREGATES LLC
Controller: Jacob Boyington
Location: Warren, Knox County, ME
Employees: 4
Recent Violations
View all 10 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 12/02/2025 | 56.3131 | S&S | ModNegligence | $398 |
| 05/07/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 05/07/2025 | 56.11001 | S&S | ModNegligence | $151 |
| 11/20/2024 | 56.14101(a)(2) | Non-S&S | LowNegligence | $147 |
| 11/20/2024 | 56.14101(a)(2) | Non-S&S | LowNegligence | $147 |
| 11/20/2024 | 56.11001 | Non-S&S | ModNegligence | $147 |
| 11/20/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 11/20/2023 | 46.9(b)(2) | Non-S&S | ModNegligence | $143 |
| 07/27/2023 | 56.14207 | Non-S&S | LowNegligence | $143 |
| 07/27/2023 | 41.20 | Non-S&S | LowNegligence | $143 |
Inspections
View all 5 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/01/2025 | 12/04/2025 | 16.25 | 1 |
| 05/05/2025 | 05/08/2025 | 12.25 | 1 |
| 11/19/2024 | 11/21/2024 | 12.25 | 1 |
| 11/19/2023 | 11/20/2023 | 16.50 | 1 |
| 07/27/2023 | 08/04/2023 | 17.25 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Portable Plant have?
Portable Plant has 10 MSHA violations on record, of which 2 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $2K.
What type of mine is Portable Plant?
Portable Plant is a Surface mine producing SandAndGravel, located in Warren, Knox County, ME. It currently has 4 employees.
Has anyone been injured or killed at Portable Plant?
According to MSHA records, Portable Plant has 0 reported accident/injury records and 0 fatalities on file.
Who operates Portable Plant?
Portable Plant is operated by ARC AGGREGATES LLC and controlled by Jacob Boyington. MSHA Mine ID: 1701093.