Pleasanton Plant
Active
Surface
SandAndGravel
Operator: CalMat Co
Controller: Vulcan Materials Company
Location: PLEASANTON, Alameda County, CA
Employees: 52
309
Violations
58
S&S Violations
58
Accidents
$80K
Penalties
Recent Violations
View all 309 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/02/2026 | 56.11002 | Non-S&S | ModNegligence | $0 |
| 10/15/2025 | 56.14101(a)(2) | Non-S&S | ModNegligence | $151 |
| 10/15/2025 | 47.41(a)(2) | Non-S&S | ModNegligence | $151 |
| 10/15/2025 | 47.41(a)(1) | Non-S&S | ModNegligence | $151 |
| 04/17/2025 | 56.4201(a)(2) | Non-S&S | HighNegligence | $267 |
| 04/16/2025 | 56.14207 | Non-S&S | LowNegligence | $151 |
| 01/29/2025 | 56.14101(a)(3) | Non-S&S | LowNegligence | $151 |
| 06/02/2023 | 50.30(a) | Non-S&S | LowNegligence | $143 |
| 06/01/2023 | 56.14115(b) | Non-S&S | ModNegligence | $271 |
| 06/01/2023 | 56.12030 | Non-S&S | ModNegligence | $182 |
| 06/01/2023 | 56.4130(b) | Non-S&S | ModNegligence | $182 |
| 02/09/2023 | 56.12030 | S&S | ModNegligence | $3,006 |
| 02/09/2023 | 56.15001 | Non-S&S | LowNegligence | $143 |
| 02/09/2023 | 56.4201(a)(2) | Non-S&S | LowNegligence | $143 |
| 02/08/2023 | 50.20(b) | Non-S&S | LowNegligence | $143 |
| 02/08/2023 | 56.14100(b) | Non-S&S | LowNegligence | $143 |
| 02/08/2023 | 56.4402 | Non-S&S | ModNegligence | $271 |
| 02/08/2023 | 56.12019 | Non-S&S | ModNegligence | $182 |
| 09/21/2022 | 56.14205 | S&S | NoNegligence | $378 |
| 09/20/2022 | 56.20010 | Non-S&S | ModNegligence | $481 |
Accidents & Injuries
View all 58 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 09/18/2025 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/09/2023 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 12d restricted |
| 07/28/2022 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 14d restricted |
| 07/18/2022 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 09/30/2021 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 12d restricted |
| 01/19/2021 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/23/2019 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 100d lost, 30d restricted |
| 04/11/2019 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 50d restricted |
| 07/10/2018 | HANDLING OF MATERIALS | PERM TOT OR PERM PRTL DISABLTY | None |
| 01/25/2018 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 2d restricted |
Inspections
View all 93 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 01/26/2026 | 02/02/2026 | 8.25 | 1 |
| 10/14/2025 | 10/16/2025 | 31.75 | 1 |
| 08/20/2025 | 08/20/2025 | 5.50 | 1 |
| 08/16/2025 | 08/16/2025 | 3.00 | 1 |
| 07/23/2025 | 07/23/2025 | 6.25 | 1 |
| 05/01/2025 | 05/06/2025 | 10.25 | 1 |
| 04/14/2025 | 04/17/2025 | 35.75 | 1 |
| 01/29/2025 | 01/30/2025 | 22.00 | 1 |
| 06/26/2024 | 06/26/2024 | 41.00 | 1 |
| 03/08/2024 | 03/08/2024 | 0.25 | 1 |
Mine Details
MSHA Mine ID0401924
Mine TypeSurface
StatusActive
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees52
Days/Week6.0
Hours/Shift12.0
Coordinates37.6766670, -121.8269440
Nearest TownPLEASANTON
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Frequently Asked Questions
How many MSHA violations does Pleasanton Plant have?
Pleasanton Plant has 309 MSHA violations on record, of which 58 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $80K.
What type of mine is Pleasanton Plant?
Pleasanton Plant is a Surface mine producing SandAndGravel, located in PLEASANTON, Alameda County, CA. It currently has 52 employees.
Has anyone been injured or killed at Pleasanton Plant?
According to MSHA records, Pleasanton Plant has 58 reported accident/injury records and 0 fatalities on file.
Who operates Pleasanton Plant?
Pleasanton Plant is operated by CalMat Co and controlled by Vulcan Materials Company. MSHA Mine ID: 0401924.