Enumclaw Pit & Plant
Active
Surface
SandAndGravel
Operator: HM Pacific Northwest Inc.
Controller: Heidelberg Materials AG
Location: Mapel Valley, King County, WA
Employees: 12
291
Violations
67
S&S Violations
23
Accidents
$80K
Penalties
Recent Violations
View all 291 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/12/2026 | 56.20003(a) | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.11027 | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.14107(a) | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.14132(a) | Non-S&S | LowNegligence | $0 |
| 08/06/2025 | 56.14107(a) | Non-S&S | ModNegligence | $1,431 |
| 08/06/2025 | 56.14112(b) | Non-S&S | ModNegligence | $1,431 |
| 08/06/2025 | 56.12020 | Non-S&S | ModNegligence | $1,431 |
| 08/06/2025 | 56.14107(a) | Non-S&S | ModNegligence | $642 |
| 08/06/2025 | 56.12013 | Non-S&S | ModNegligence | $1,431 |
| 01/06/2025 | 56.14112(a) | Non-S&S | ModNegligence | $151 |
| 01/06/2025 | 56.14100(a) | Non-S&S | ModNegligence | $151 |
| 01/06/2025 | 56.11001 | S&S | ModNegligence | $288 |
| 01/02/2025 | 56.12018 | Non-S&S | ModNegligence | $151 |
| 01/02/2025 | 56.12002 | Non-S&S | ModNegligence | $151 |
| 01/02/2025 | 56.14112(a)(1) | Non-S&S | ModNegligence | $151 |
| 01/02/2025 | 56.20003(a) | Non-S&S | ModNegligence | $151 |
| 01/02/2025 | 56.14110 | S&S | ModNegligence | $288 |
| 01/02/2025 | 56.11012 | Non-S&S | ModNegligence | $151 |
| 03/06/2024 | 56.12032 | Non-S&S | ModNegligence | $172 |
| 03/05/2024 | 56.12004 | Non-S&S | ModNegligence | $260 |
Accidents & Injuries
View all 23 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 05/24/2022 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 18d restricted |
| 03/12/2021 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 01/08/2020 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 3d lost |
| 05/04/2018 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 3d restricted |
| 02/12/2016 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/16/2015 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 03/20/2015 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/27/2013 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/15/2012 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/26/2011 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
Inspections
View all 87 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/09/2026 | 02/12/2026 | 21.00 | 1 |
| 12/29/2025 | 12/29/2025 | 6.00 | 1 |
| 09/17/2025 | 09/17/2025 | 2.75 | 1 |
| 08/07/2025 | 08/12/2025 | 1.00 | 1 |
| 08/06/2025 | 08/08/2025 | 17.50 | 2 |
| 03/26/2025 | 03/26/2025 | 3.75 | 1 |
| 01/21/2025 | 01/21/2025 | 3.00 | 1 |
| 01/02/2025 | 01/13/2025 | 26.00 | 1 |
| 08/07/2024 | 08/11/2024 | 16.00 | 1 |
| 03/06/2024 | 03/07/2024 | 1.50 | 1 |
Mine Details
MSHA Mine ID4500609
Mine TypeSurface
StatusActive
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees12
Days/Week5.0
Hours/Shift5.0
Coordinates47.1963890, -121.9472220
Nearest TownMapel Valley
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Frequently Asked Questions
How many MSHA violations does Enumclaw Pit & Plant have?
Enumclaw Pit & Plant has 291 MSHA violations on record, of which 67 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $80K.
What type of mine is Enumclaw Pit & Plant?
Enumclaw Pit & Plant is a Surface mine producing SandAndGravel, located in Mapel Valley, King County, WA. It currently has 12 employees.
Has anyone been injured or killed at Enumclaw Pit & Plant?
According to MSHA records, Enumclaw Pit & Plant has 23 reported accident/injury records and 0 fatalities on file.
Who operates Enumclaw Pit & Plant?
Enumclaw Pit & Plant is operated by HM Pacific Northwest Inc. and controlled by Heidelberg Materials AG. MSHA Mine ID: 4500609.