Key Takeaway
TRP-Los Banos Plant is a active surface mine producing SandAndGravel, located in Los Banos, Merced County, CA. It has 79 violations on record (22 S&S) and $82K in proposed penalties. Operated by Triangle Rock Products.
TRP-Los Banos Plant
Operator: Triangle Rock Products
Controller: Vulcan Materials Company
Location: Los Banos, Merced County, CA
Employees: 15
Recent Violations
View all 79 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 11/12/2025 | 56.14107(a) | Non-S&S | LowNegligence | $151 |
| 11/12/2025 | 47.41(a)(1) | Non-S&S | ModNegligence | $151 |
| 06/04/2025 | 56.20010 | Non-S&S | ModNegligence | $151 |
| 12/11/2024 | 56.20003(a) | Non-S&S | ModNegligence | $151 |
| 08/18/2021 | 56.14100(c) | Non-S&S | LowNegligence | $125 |
| 03/18/2021 | 56.12008 | Non-S&S | LowNegligence | $125 |
| 01/29/2020 | 46.3(b) | Non-S&S | LowNegligence | $123 |
| 02/01/2016 | 56.20010 | Non-S&S | LowNegligence | $100 |
| 12/07/2015 | 56.9101 | S&S | ModNegligence | $499 |
| 12/07/2015 | 56.14131(a) | S&S | HighNegligence | $70,000 |
| 04/07/2015 | 56.16001 | S&S | ModNegligence | $190 |
| 04/07/2015 | 56.14100(b) | Non-S&S | ModNegligence | $100 |
| 07/14/2014 | 56.14207 | Non-S&S | ModNegligence | $100 |
| 07/08/2014 | 56.11027 | S&S | ModNegligence | $176 |
| 07/08/2014 | 56.14130(c) | Non-S&S | LowNegligence | $100 |
| 07/08/2014 | 56.14100(b) | Non-S&S | ModNegligence | $100 |
| 12/11/2013 | 56.20003(b) | S&S | ModNegligence | $176 |
| 12/11/2013 | 56.11003 | Non-S&S | ModNegligence | $100 |
| 12/11/2013 | 56.20014 | Non-S&S | ModNegligence | $100 |
| 12/11/2013 | 56.17001 | Non-S&S | ModNegligence | $100 |
Accidents & Injuries
View all 14 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/25/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 6d lost |
| 12/20/2024 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 17d restricted |
| 05/02/2022 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 31d restricted |
| 11/06/2019 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 16d restricted |
| 02/21/2018 | STEPPING OR KNEELING ON OBJECT | DYS AWY FRM WRK & RESTRCTD ACT | 18d lost, 439d restricted |
| 08/16/2017 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 38d lost, 10d restricted |
| 01/25/2016 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 19d lost, 42d restricted |
| 12/07/2015 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 5d lost |
| 09/05/2008 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 5d restricted |
| 04/03/2005 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 23d restricted |
Inspections
View all 63 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/11/2026 | 02/11/2026 | 5.25 | 1 |
| 11/12/2025 | 11/13/2025 | 21.25 | 1 |
| 08/11/2025 | 08/12/2025 | 8.50 | 1 |
| 06/04/2025 | 06/06/2025 | 14.50 | 1 |
| 05/05/2025 | 05/06/2025 | 16.75 | 1 |
| 12/11/2024 | 12/11/2024 | 11.75 | 1 |
| 06/16/2024 | 06/22/2024 | 47.50 | 2 |
| 01/30/2024 | 01/31/2024 | 20.00 | 1 |
| 09/11/2023 | 09/11/2023 | 10.00 | 1 |
| 07/11/2023 | 07/12/2023 | 14.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does TRP-Los Banos Plant have?
TRP-Los Banos Plant has 79 MSHA violations on record, of which 22 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $82K.
What type of mine is TRP-Los Banos Plant?
TRP-Los Banos Plant is a Surface mine producing SandAndGravel, located in Los Banos, Merced County, CA. It currently has 15 employees.
Has anyone been injured or killed at TRP-Los Banos Plant?
According to MSHA records, TRP-Los Banos Plant has 14 reported accident/injury records and 0 fatalities on file.
Who operates TRP-Los Banos Plant?
TRP-Los Banos Plant is operated by Triangle Rock Products and controlled by Vulcan Materials Company. MSHA Mine ID: 0401843.