Skip to main content
King County logo

Permits and applications

DPER permitting activity or applications that may be of special interest to the public due to their nature, size or location:

Project Type of Proposal NOA Mailed Notes 


Pacific Raceways

Excavation of 1,000,000 cubic yards of gravel and construction of approximately 205,000 sq. ft. of commercial/industrial space in six buildings ranging in size from 5,000 sq. ft. to 40,000 sq. ft. 01-05-18   

Comment Period Ends:


Notification of likely Determination of Non-Significance sent 01/05/18

Pacific Raceways Documents LUT417-003



Enumclaw Recycling Center

Clearing and grading of approximately 34 acres of a 102-acre site (3 parcels) to develop a material processing facility for processing of land clearing and landscaping material. The proposal includes construction of an office and a shop and associated drainage and access improvements. The application covers future use of site for material processing operations.

Contact: Project Manager, Fereshteh Dehkordi, at - 206-477-0375


Comment Period extended to 11/24/17

Enumclaw Recycling Center Site Improvements-GRDE17-0075



Maple Valley Asphalt Facility

This is a two phase project to develop the site for an asphalt plant. The first phase includes site preparation for the future asphalt plant. Grading activities include removal of stockpiles, excavation of petroleum contaminated soils, and backfill with clean soils. The construction of the future asphalt plant will require a separate building permit. Approximately 8.55 acres of the total 25-acre site are included in this grading permit.

Contact: Project Manager, Fereshteh Dehkordi, at - 206-477-0375


Comment Period extended to 11/24/17

Maple Valley Asphalt Facility GRAD17-0069



Raging River Quarry

Periodic Review

A 5-year interval review conducted by DPER to evaluate whether the site is operating consistent with all existing permit conditions and that the most current site design and operating standards are applied through additional or revised permit conditions to mitigate identifiable environmental impacts (KCC 21A.22.050). 

Contact: Project Manager, Randy Sandin, at - 206-477-0378, or Assistant Project Manager, Amanda Reeck, at - 206-263-5783


Comment Period Ends: 09-22-16

Actions: Final report and recommendation will be posted 9/15/17.

Blasting Schedule: None at this time

Raging River GRDE15-0004 Reports


Raging River Quarry

Mining Expansion

 A request to expand the area available for mining extraction by additional 25.83 acres. Expansion area includes KC parcel #222407-9033.

Contact: Fereshteh Dehkordi 206-477-0375 or


Comment Period Ends: 05/27/16

Status: Notification of likely Determination of Significance sent 3/27/17.

Raging River Quarry Reports GRDE15-0166


Quick links to information of special interest to homeowners provides a list of topics helpful to homeowners interested in building or land use permits, or the permitting process, in unincorporated King County.

Construction Industry

Quick links to information of special interest to construction industry professionals lists topics geared toward those working in the construction industry, such as engineering and erosion control resources.

Real estate professionals

Quick links to information of special interest to real estate professionals provides easy access to information for those working in real estate, such as rebuild letters / zoning certifications and online property research tools.