Key Takeaway
West Plant is a active surface mine producing SandAndGravel, located in Mesa, Maricopa County, AZ. It has 103 violations on record (19 S&S) and $28K in proposed penalties. Operated by CalMat Co.
West Plant
Operator: CalMat Co
Controller: Vulcan Materials Company
Location: Mesa, Maricopa County, AZ
Employees: 28
Recent Violations
View all 103 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 08/07/2025 | 56.20003(a) | S&S | ModNegligence | $366 |
| 07/29/2025 | 56.4203 | Non-S&S | ModNegligence | $151 |
| 07/29/2025 | 56.20003(a) | Non-S&S | ModNegligence | $151 |
| 12/10/2024 | 56.12032 | Non-S&S | ModNegligence | $147 |
| 12/10/2024 | 56.20003(a) | Non-S&S | ModNegligence | $147 |
| 03/23/2022 | 56.12018 | Non-S&S | LowNegligence | $133 |
| 07/20/2021 | 50.30(a) | Non-S&S | ModNegligence | $125 |
| 03/18/2021 | 56.12032 | Non-S&S | ModNegligence | $125 |
| 06/09/2020 | 56.12032 | Non-S&S | ModNegligence | $234 |
| 09/12/2019 | 56.14109(a) | Non-S&S | ModNegligence | $214 |
| 03/28/2019 | 56.14206(b) | Non-S&S | ModNegligence | $121 |
| 03/28/2019 | 56.14107(a) | Non-S&S | ModNegligence | $121 |
| 03/28/2019 | 56.14110 | Non-S&S | ModNegligence | $121 |
| 03/28/2019 | 56.14109 | Non-S&S | ModNegligence | $121 |
| 03/28/2019 | 56.11001 | S&S | ModNegligence | $293 |
| 03/25/2019 | 56.14132(b)(1) | Non-S&S | ModNegligence | $181 |
| 03/25/2019 | 45.4(b) | Non-S&S | ModNegligence | $121 |
| 03/25/2019 | 46.11(a) | Non-S&S | ModNegligence | $196 |
| 03/25/2019 | 56.12004 | Non-S&S | ModNegligence | $196 |
| 03/25/2019 | 56.4201(a)(2) | Non-S&S | ModNegligence | $121 |
Accidents & Injuries
View all 27 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/19/2024 | STRIKING OR BUMPING | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 06/15/2023 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 01/14/2022 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 10d lost, 50d restricted |
| 05/04/2019 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/12/2018 | STRIKING OR BUMPING | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/02/2015 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | 1d restricted |
| 04/17/2014 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 03/17/2014 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 87d lost, 13d restricted |
| 04/09/2012 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 6d restricted |
| 04/06/2010 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 13d restricted |
Inspections
View all 67 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/26/2026 | 02/26/2026 | 10.00 | 1 |
| 07/29/2025 | 08/11/2025 | 19.75 | 1 |
| 12/10/2024 | 12/11/2024 | 21.00 | 1 |
| 05/22/2024 | 05/22/2024 | 2.75 | 1 |
| 05/21/2024 | 05/21/2024 | 7.50 | 1 |
| 11/06/2023 | 11/09/2023 | 12.00 | 1 |
| 07/28/2023 | 07/31/2023 | 15.00 | 1 |
| 05/17/2023 | 05/17/2023 | 2.50 | 1 |
| 02/27/2023 | 02/27/2023 | 13.00 | 1 |
| 08/29/2022 | 08/30/2022 | 14.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does West Plant have?
West Plant has 103 MSHA violations on record, of which 19 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $28K.
What type of mine is West Plant?
West Plant is a Surface mine producing SandAndGravel, located in Mesa, Maricopa County, AZ. It currently has 28 employees.
Has anyone been injured or killed at West Plant?
According to MSHA records, West Plant has 27 reported accident/injury records and 0 fatalities on file.
Who operates West Plant?
West Plant is operated by CalMat Co and controlled by Vulcan Materials Company. MSHA Mine ID: 0202166.