Data / Mines / Washington / Dupont Pit
Dupont Pit, Pierce County, Washington: 34 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Dupont Pit is an active construction sand and gravel surface mine in Pierce County, Washington, operated by CalPortland Company with 57 employees on MSHA's record (mine ID 4503334). Since January 1, 2022 MSHA inspectors issued 34 citations and orders there with $5,894 in proposed penalties, and 7 accident reports were filed there, with 6 injury or illness cases.
The request: Watch Dupont Pit (MSHA mine ID 4503334) in Pierce County, Washington: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4503334
- Status
- Active since January 2, 1995
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Pierce County, Washington
- Nearest town
- Dupont
- Operator
- CalPortland Company
- Parent company
- Taiheiyo Cement Corp
- Employees
- 57
- MSHA field office
- Kent WA Field Office
- Citations and orders since January 1, 2022
- 34
- Significant and substantial
- 3 (8.8%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $5,894
- Amount paid so far
- $5,894
- Inspections
- 14
- Inspector hours on site
- 250
- Citations per inspection
- 2.43 (all mines 2.30)
- Accident reports
- 7
- Injury and illness cases
- 6
- Fatalities
- 0
- Latest MSHA record
- September 3, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 1 | 0 | $133 | 2 |
| 2023 | 6 | 0 | $858 | 1 |
| 2024 | 9 | 1 | $1,549 | 1 |
| 2025 | 16 | 2 | $3,052 | 2 |
| 2026 | 2 | 0 | $302 | 0 |
Standards cited most at Dupont Pit
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14110 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14109 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12034 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4402 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.16001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.20-1 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.12025 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Dupont Pit
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 2 |
| No lost time, or an occupational illness | 4 |
What the accident reports at Dupont Pit describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 3 |
| Other | 1 |
| Disorders (repeated trauma) | 1 |
| Nonpowered haulage | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at Dupont Pit
| Equipment | Reports |
|---|---|
| Front-end loader | 2 |
| Ore haulage trucks - off highway trucks | 1 |
| Machine | 1 |
| Forklift | 1 |
Other open mines in Pierce County, Washington
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Kapowsin Quarry | Washington Rock Quarries, Inc. | Pierce County, WA | Crushed, broken traprock | 9 | 59 |
| C&V Roy Pit | Mountain Stone Aggregate | Pierce County, WA | Construction sand and gravel | 2 | 51 |
| Sumner Pit And Plant | HM Pacific Northwest Inc. | Pierce County, WA | Construction sand and gravel | 2 | 49 |
| Fennel Resources | Miles Sand & Gravel Co Inc | Pierce County, WA | Construction sand and gravel | 11 | 42 |
| Thun Field Pit | HM Pacific Northwest Inc. | Pierce County, WA | Construction sand and gravel | 10 | 37 |
| King Creek Pit | Washington Rock Quarries, Inc. | Pierce County, WA | Construction sand and gravel | 23 | 35 |
| Roy | Miles Sand & Gravel Co Inc | Pierce County, WA | Construction sand and gravel | 8 | 31 |
| Lynch Creek Quarry LLC | Lynch Creek Quarry LLC | Pierce County, WA | Crushed, broken stone | 5 | 22 |
| Portable 1 | Kennedy Creek Quarry Incorporated | Pierce County, WA | Construction sand and gravel | 5 | 21 |
| Tacoma Plant | Graymont Western US Inc | Pierce County, WA | Lime | 41 | 18 |
| Canyon Resources | Miles Sand & Gravel Co Inc | Pierce County, WA | Construction sand and gravel | 4 | 9 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.