Key Takeaway
Napa Quarry is a active surface mine producing Nonmetal, located in napa, Napa County, CA. It has 112 violations on record (21 S&S) and $26K in proposed penalties. Operated by CalMat Co.
Napa Quarry
Operator: CalMat Co
Controller: Vulcan Materials Company
Location: napa, Napa County, CA
Employees: 50
Recent Violations
View all 112 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 03/21/2024 | 56.12018 | Non-S&S | LowNegligence | $147 |
| 03/21/2024 | 47.41(a) | Non-S&S | LowNegligence | $147 |
| 12/08/2022 | 56.14112(b) | Non-S&S | ModNegligence | $143 |
| 09/15/2022 | 56.20011 | Non-S&S | ModNegligence | $169 |
| 03/01/2022 | 56.4102 | Non-S&S | ModNegligence | $133 |
| 03/01/2022 | 47.54 | Non-S&S | ModNegligence | $133 |
| 02/28/2022 | 56.4102 | Non-S&S | ModNegligence | $133 |
| 01/09/2020 | 56.12032 | Non-S&S | ModNegligence | $123 |
| 07/02/2019 | 56.14207 | Non-S&S | ModNegligence | $121 |
| 04/26/2019 | 56.12025 | Non-S&S | ModNegligence | $474 |
| 04/16/2019 | 50.30(a) | Non-S&S | ModNegligence | $121 |
| 10/15/2017 | 50.30(a) | Non-S&S | NoNegligence | $118 |
| 10/05/2017 | Non-S&S | $0 | ||
| 10/05/2017 | 56.15005 | S&S | LowNegligence | $209 |
| 10/03/2017 | 56.14101(a)(1) | Non-S&S | ModNegligence | $116 |
| 08/09/2017 | 56.11027 | Non-S&S | ModNegligence | $116 |
| 08/08/2017 | 56.12001 | Non-S&S | ModNegligence | $116 |
| 08/08/2017 | 56.12002 | Non-S&S | ModNegligence | $116 |
| 11/14/2016 | 56.20011 | Non-S&S | ModNegligence | $114 |
| 02/22/2016 | 56.20003(a) | Non-S&S | ModNegligence | $100 |
Accidents & Injuries
View all 40 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/15/2025 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 231d restricted |
| 07/15/2021 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 28d restricted |
| 06/02/2021 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 24d restricted |
| 11/19/2020 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 2d restricted |
| 10/14/2020 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 6d restricted |
| 07/30/2020 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 2d restricted |
| 03/30/2020 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 09/20/2019 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/08/2019 | STEPPING OR KNEELING ON OBJECT | DAYS RESTRICTED ACTIVITY ONLY | 13d restricted |
| 09/05/2018 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 37d restricted |
Inspections
View all 75 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/15/2025 | 10/17/2025 | 13.75 | 1 |
| 07/23/2025 | 07/24/2025 | 14.75 | 1 |
| 06/26/2025 | 06/30/2025 | 9.75 | 2 |
| 04/01/2025 | 04/01/2025 | 7.00 | 1 |
| 10/03/2024 | 10/05/2024 | 12.00 | 1 |
| 08/19/2024 | 08/20/2024 | 12.75 | 1 |
| 03/21/2024 | 03/21/2024 | 9.00 | 1 |
| 12/08/2022 | 12/08/2022 | 7.50 | 1 |
| 09/14/2022 | 09/15/2022 | 15.50 | 1 |
| 08/30/2022 | 08/30/2022 | 3.75 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Napa Quarry have?
Napa Quarry has 112 MSHA violations on record, of which 21 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $26K.
What type of mine is Napa Quarry?
Napa Quarry is a Surface mine producing Nonmetal, located in napa, Napa County, CA. It currently has 50 employees.
Has anyone been injured or killed at Napa Quarry?
According to MSHA records, Napa Quarry has 40 reported accident/injury records and 0 fatalities on file.
Who operates Napa Quarry?
Napa Quarry is operated by CalMat Co and controlled by Vulcan Materials Company. MSHA Mine ID: 0400023.