Key Takeaway
Corona Plant is a active surface mine producing SandAndGravel, located in Corona, Riverside County, CA. It has 108 violations on record (16 S&S) and $15K in proposed penalties. Operated by CalMat Co.
Corona Plant
Operator: CalMat Co
Controller: Vulcan Materials Company
Location: Corona, Riverside County, CA
Employees: 33
Recent Violations
View all 108 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/04/2026 | 56.4201(a)(5) | Non-S&S | ModNegligence | $0 |
| 03/11/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 08/22/2024 | 56.14132(a) | Non-S&S | HighNegligence | $535 |
| 10/16/2023 | 50.30(a) | Non-S&S | HighNegligence | $147 |
| 09/06/2023 | 56.14100(a) | S&S | ModNegligence | $772 |
| 07/16/2023 | 50.30(a) | Non-S&S | HighNegligence | $147 |
| 12/15/2022 | 46.9(c)(1)(i) | Non-S&S | LowNegligence | $143 |
| 12/14/2022 | 46.9(a) | Non-S&S | ModNegligence | $143 |
| 12/14/2022 | 56.14100(a) | S&S | LowNegligence | $518 |
| 12/01/2021 | 56.14100(b) | Non-S&S | ModNegligence | $133 |
| 08/05/2021 | 56.4201(a)(2) | Non-S&S | LowNegligence | $125 |
| 10/09/2020 | Non-S&S | $0 | ||
| 11/13/2019 | 56.9314 | S&S | ModNegligence | $977 |
| 08/22/2017 | 56.14132(b)(1) | Non-S&S | LowNegligence | $116 |
| 03/21/2017 | 56.14132(b)(1) | Non-S&S | ModNegligence | $116 |
| 03/16/2017 | 56.3130 | Non-S&S | ModNegligence | $116 |
| 01/21/2016 | 56.12008 | Non-S&S | ModNegligence | $100 |
| 05/28/2015 | 56.14132(b)(2) | Non-S&S | LowNegligence | $100 |
| 12/05/2013 | 56.14101(a)(2) | S&S | ModNegligence | $308 |
| 12/05/2013 | 56.9101 | S&S | ModNegligence | $687 |
Accidents & Injuries
View all 11 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 10/09/2020 | OTHER | INJURIES DUE TO NATURAL CAUSES | None |
| 11/04/2014 | FIRE | DAYS RESTRICTED ACTIVITY ONLY | 10d restricted |
| 05/25/2009 | SLIP OR FALL OF PERSON | INJURIES INVOLVNG NONEMPLOYEES | None |
| 09/02/2008 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 06/02/2006 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 8d restricted |
| 08/20/2004 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 11d restricted |
| 09/19/2003 | FIRE | ACCIDENT ONLY | None |
| 05/08/2003 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 250d lost |
| 03/13/2002 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 22d restricted |
| 09/29/2001 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 69 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/03/2026 | 02/06/2026 | 24.00 | 1 |
| 09/09/2025 | 09/10/2025 | 22.50 | 1 |
| 03/10/2025 | 03/12/2025 | 24.00 | 1 |
| 08/22/2024 | 08/23/2024 | 23.00 | 1 |
| 03/12/2024 | 03/15/2024 | 27.50 | 2 |
| 09/07/2023 | 09/07/2023 | 1.00 | 1 |
| 09/05/2023 | 09/07/2023 | 25.00 | 1 |
| 05/17/2023 | 05/17/2023 | 2.25 | 1 |
| 12/13/2022 | 12/15/2022 | 38.00 | 1 |
| 08/29/2022 | 09/01/2022 | 25.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Corona Plant have?
Corona Plant has 108 MSHA violations on record, of which 16 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $15K.
What type of mine is Corona Plant?
Corona Plant is a Surface mine producing SandAndGravel, located in Corona, Riverside County, CA. It currently has 33 employees.
Has anyone been injured or killed at Corona Plant?
According to MSHA records, Corona Plant has 11 reported accident/injury records and 0 fatalities on file.
Who operates Corona Plant?
Corona Plant is operated by CalMat Co and controlled by Vulcan Materials Company. MSHA Mine ID: 0405095.