Key Takeaway
Dupont Pit is a active surface mine producing SandAndGravel, located in Dupont, Pierce County, WA. It has 134 violations on record (12 S&S) and $25K in proposed penalties. Operated by CalPortland Company.
Dupont Pit
Operator: CalPortland Company
Controller: Taiheiyo Cement Corp
Location: Dupont, Pierce County, WA
Employees: 57
Recent Violations
View all 134 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/09/2025 | 47.41(a) | Non-S&S | LowNegligence | $151 |
| 10/09/2025 | 56.14201(b) | Non-S&S | LowNegligence | $151 |
| 10/08/2025 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 10/08/2025 | 56.14100(b) | S&S | ModNegligence | $398 |
| 10/08/2025 | 56.14101(a)(2) | Non-S&S | LowNegligence | $151 |
| 10/07/2025 | 56.12025 | S&S | ModNegligence | $398 |
| 10/07/2025 | 56.20003(a) | Non-S&S | LowNegligence | $151 |
| 10/07/2025 | 56.14110 | Non-S&S | ModNegligence | $151 |
| 10/07/2025 | 56.14205 | Non-S&S | ModNegligence | $151 |
| 10/07/2025 | 56.14132(b)(1)(i) | Non-S&S | LowNegligence | $151 |
| 10/07/2025 | 56.11001 | Non-S&S | ModNegligence | $267 |
| 07/02/2025 | 56.14100(b) | Non-S&S | ModNegligence | $177 |
| 07/01/2025 | 56.4402 | Non-S&S | ModNegligence | $151 |
| 01/08/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 01/07/2025 | 56.14107(a) | Non-S&S | LowNegligence | $151 |
| 01/06/2025 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 07/11/2024 | 56.14101(a)(2) | Non-S&S | ModNegligence | $260 |
| 07/11/2024 | 56.14132(a) | Non-S&S | LowNegligence | $147 |
| 07/10/2024 | 56.20003(a) | Non-S&S | LowNegligence | $147 |
| 07/09/2024 | 56.14110 | Non-S&S | ModNegligence | $147 |
Accidents & Injuries
View all 54 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 11/17/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 06/11/2025 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/01/2024 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 11/17/2023 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/03/2022 | NONPOWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 03/22/2022 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 318d lost |
| 02/04/2022 | OTHER | INJURIES DUE TO NATURAL CAUSES | 6d lost |
| 01/17/2020 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 1d restricted |
| 01/02/2019 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 9d lost, 19d restricted |
| 01/15/2018 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 72 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 11/10/2025 | 11/10/2025 | 3.50 | 1 |
| 10/07/2025 | 10/14/2025 | 41.75 | 1 |
| 06/30/2025 | 07/09/2025 | 50.25 | 1 |
| 01/06/2025 | 01/08/2025 | 29.75 | 1 |
| 07/08/2024 | 07/11/2024 | 38.25 | 1 |
| 05/22/2024 | 05/22/2024 | 1.50 | 1 |
| 03/11/2024 | 03/18/2024 | 38.25 | 1 |
| 08/03/2023 | 08/08/2023 | 41.25 | 1 |
| 04/10/2023 | 04/13/2023 | 48.00 | 1 |
| 07/20/2022 | 07/22/2022 | 27.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Dupont Pit have?
Dupont Pit has 134 MSHA violations on record, of which 12 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $25K.
What type of mine is Dupont Pit?
Dupont Pit is a Surface mine producing SandAndGravel, located in Dupont, Pierce County, WA. It currently has 57 employees.
Has anyone been injured or killed at Dupont Pit?
According to MSHA records, Dupont Pit has 54 reported accident/injury records and 1 fatalities on file.
Who operates Dupont Pit?
Dupont Pit is operated by CalPortland Company and controlled by Taiheiyo Cement Corp. MSHA Mine ID: 4503334.