Key Takeaway
Coolidge Plant is a intermittent surface mine producing SandAndGravel, located in Coolidge, Pinal County, AZ. It has 7 violations on record (0 S&S) and $919 in proposed penalties. Operated by Premier Materials Coolidge LLC.
Coolidge Plant
Operator: Premier Materials Coolidge LLC
Controller: Sand River Holdings LLC; AMS Southwest LLC
Location: Coolidge, Pinal County, AZ
Employees: 9
Recent Violations
View all 7 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 04/23/2025 | 46.8(a)(1) | Non-S&S | ModNegligence | $168 |
| 01/31/2025 | Non-S&S | $0 | ||
| 01/31/2025 | 50.10(d) | Non-S&S | ModNegligence | $151 |
| 01/31/2025 | 50.12 | Non-S&S | ModNegligence | $151 |
| 01/31/2025 | 50.10(d) | Non-S&S | ModNegligence | $151 |
| 01/31/2025 | 50.12 | Non-S&S | ModNegligence | $151 |
| 06/25/2024 | 56.4201(a)(2) | Non-S&S | LowNegligence | $147 |
Inspections
View all 7 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 05/21/2025 | 05/22/2025 | 3.50 | 1 |
| 04/23/2025 | 04/23/2025 | 8.50 | 1 |
| 01/30/2025 | 04/08/2025 | 7.25 | 1 |
| 11/05/2024 | 11/06/2024 | 9.00 | 1 |
| 06/25/2024 | 06/25/2024 | 8.75 | 1 |
| 10/04/2023 | 10/04/2023 | 9.50 | 1 |
| 06/21/2023 | 06/26/2023 | 15.75 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Coolidge Plant have?
Coolidge Plant has 7 MSHA violations on record, of which 0 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $919.
What type of mine is Coolidge Plant?
Coolidge Plant is a Surface mine producing SandAndGravel, located in Coolidge, Pinal County, AZ. It currently has 9 employees.
Has anyone been injured or killed at Coolidge Plant?
According to MSHA records, Coolidge Plant has 0 reported accident/injury records and 0 fatalities on file.
Who operates Coolidge Plant?
Coolidge Plant is operated by Premier Materials Coolidge LLC and controlled by Sand River Holdings LLC; AMS Southwest LLC. MSHA Mine ID: 0203471.