Key Takeaway
Rockfield Plant is a active surface mine producing SandAndGravel, located in Herndon, Fresno County, CA. It has 213 violations on record (60 S&S) and $50K in proposed penalties. Operated by CEMEX Construction Materials Pacific, LLC.
Rockfield Plant
Operator: CEMEX Construction Materials Pacific, LLC
Controller: Cemex S A
Location: Herndon, Fresno County, CA
Employees: 12
Recent Violations
View all 213 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 09/24/2025 | 62.130(a) | Non-S&S | ModNegligence | $697 |
| 05/15/2025 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 05/15/2025 | 56.20003(a) | Non-S&S | HighNegligence | $209 |
| 04/16/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 02/19/2025 | 56.12018 | Non-S&S | ModNegligence | $151 |
| 02/19/2025 | 56.12032 | Non-S&S | ModNegligence | $151 |
| 05/30/2024 | 50.30(a) | Non-S&S | ModNegligence | $147 |
| 05/29/2024 | 56.14101(a)(2) | Non-S&S | ModNegligence | $147 |
| 05/29/2024 | 56.12028 | Non-S&S | ModNegligence | $147 |
| 05/29/2024 | 56.12025 | Non-S&S | ModNegligence | $147 |
| 05/29/2024 | 56.14207 | Non-S&S | ModNegligence | $147 |
| 05/29/2024 | 56.12006 | Non-S&S | ModNegligence | $189 |
| 01/12/2024 | 56.12032 | Non-S&S | LowNegligence | $147 |
| 08/01/2023 | 56.14132(a) | Non-S&S | ModNegligence | $155 |
| 08/16/2022 | 56.12018 | Non-S&S | ModNegligence | $183 |
| 08/16/2022 | 56.12032 | Non-S&S | ModNegligence | $183 |
| 08/16/2022 | 56.12028 | Non-S&S | ModNegligence | $183 |
| 03/22/2022 | 46.11(a) | S&S | ModNegligence | $5,008 |
| 03/22/2022 | 56.14101(a)(3) | Non-S&S | ModNegligence | $909 |
| 03/22/2022 | 56.14101(a)(3) | Non-S&S | LowNegligence | $407 |
Accidents & Injuries
View all 5 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/15/2024 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 1d restricted |
| 04/17/2024 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 297d lost |
| 07/18/2012 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 236d lost |
| 07/13/2009 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 39d lost |
| 02/13/2009 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 36d restricted |
Inspections
View all 79 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/16/2025 | 12/18/2025 | 33.00 | 1 |
| 09/22/2025 | 09/25/2025 | 23.75 | 1 |
| 05/14/2025 | 05/15/2025 | 16.00 | 1 |
| 02/18/2025 | 02/20/2025 | 18.25 | 1 |
| 05/29/2024 | 05/30/2024 | 21.00 | 1 |
| 01/12/2024 | 01/12/2024 | 10.50 | 1 |
| 07/31/2023 | 08/02/2023 | 11.00 | 1 |
| 06/20/2023 | 06/20/2023 | 10.00 | 1 |
| 08/16/2022 | 08/17/2022 | 21.00 | 1 |
| 03/21/2022 | 03/29/2022 | 39.25 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Rockfield Plant have?
Rockfield Plant has 213 MSHA violations on record, of which 60 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $50K.
What type of mine is Rockfield Plant?
Rockfield Plant is a Surface mine producing SandAndGravel, located in Herndon, Fresno County, CA. It currently has 12 employees.
Has anyone been injured or killed at Rockfield Plant?
According to MSHA records, Rockfield Plant has 5 reported accident/injury records and 0 fatalities on file.
Who operates Rockfield Plant?
Rockfield Plant is operated by CEMEX Construction Materials Pacific, LLC and controlled by Cemex S A. MSHA Mine ID: 0401897.