Key Takeaway
West Coast Aggregate Supply Inc is a active surface mine producing SandAndGravel, located in Thermal, Riverside County, CA. It has 180 violations on record (39 S&S) and $36K in proposed penalties. Operated by West Coast Aggregate Supply Inc.
West Coast Aggregate Supply Inc
Operator: West Coast Aggregate Supply Inc
Controller: John R Struiksma
Location: Thermal, Riverside County, CA
Employees: 11
Recent Violations
View all 180 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/22/2026 | 56.12004 | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.12004 | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.18002(a) | S&S | ModNegligence | $0 |
| 01/22/2026 | 41.12 | Non-S&S | ModNegligence | $0 |
| 01/21/2026 | 56.12008 | Non-S&S | LowNegligence | $0 |
| 01/21/2026 | 56.12004 | Non-S&S | ModNegligence | $0 |
| 06/03/2025 | 46.4(a)(1) | Non-S&S | LowNegligence | $151 |
| 12/03/2024 | 47.44(b) | Non-S&S | LowNegligence | $147 |
| 12/03/2024 | 56.14205 | Non-S&S | ModNegligence | $147 |
| 12/03/2024 | 56.12008 | Non-S&S | LowNegligence | $147 |
| 12/03/2024 | 56.14205 | Non-S&S | LowNegligence | $147 |
| 06/12/2024 | 56.14130(g) | S&S | LowNegligence | $260 |
| 01/24/2024 | 56.9300(a) | Non-S&S | ModNegligence | $147 |
| 01/24/2024 | 56.18002(a) | S&S | ModNegligence | $576 |
| 01/16/2024 | 50.30(a) | Non-S&S | HighNegligence | $147 |
| 08/10/2023 | 56.12002 | Non-S&S | LowNegligence | $143 |
| 08/10/2023 | 56.14107(a) | S&S | ModNegligence | $252 |
| 01/26/2023 | 56.16001 | Non-S&S | ModNegligence | $143 |
| 06/02/2022 | 56.20003(a) | S&S | ModNegligence | $987 |
| 06/02/2022 | 56.12019 | Non-S&S | ModNegligence | $198 |
Accidents & Injuries
View all 1 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 10/28/2005 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 161d lost |
Inspections
View all 78 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 03/03/2026 | 03/03/2026 | 1.75 | 1 |
| 01/20/2026 | 01/23/2026 | 19.75 | 1 |
| 12/29/2025 | 12/29/2025 | 3.00 | 1 |
| 08/12/2025 | 08/12/2025 | 2.25 | 1 |
| 06/10/2025 | 06/10/2025 | 7.00 | 1 |
| 06/02/2025 | 06/03/2025 | 12.00 | 1 |
| 03/25/2025 | 03/25/2025 | 8.00 | 1 |
| 12/02/2024 | 12/03/2024 | 12.00 | 1 |
| 10/24/2024 | 10/24/2024 | 3.75 | 1 |
| 06/12/2024 | 06/12/2024 | 8.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does West Coast Aggregate Supply Inc have?
West Coast Aggregate Supply Inc has 180 MSHA violations on record, of which 39 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $36K.
What type of mine is West Coast Aggregate Supply Inc?
West Coast Aggregate Supply Inc is a Surface mine producing SandAndGravel, located in Thermal, Riverside County, CA. It currently has 11 employees.
Has anyone been injured or killed at West Coast Aggregate Supply Inc?
According to MSHA records, West Coast Aggregate Supply Inc has 1 reported accident/injury records and 0 fatalities on file.
Who operates West Coast Aggregate Supply Inc?
West Coast Aggregate Supply Inc is operated by West Coast Aggregate Supply Inc and controlled by John R Struiksma. MSHA Mine ID: 0404209.