Current Quarry information

• Periodic Review Report and Decision - released September 15, 2017.
• King County Department of Permitting Environmental Review: documents that are pertinent to the quarry operations
• More quarry information is available online at King County Department of Permitting and Environmental Review. Put permit number (GRDE15-0166) in search box. You do not need a password to use this page.

Documents Pertinent to the proposed expansion permit:

• SEPA Checklist, August 2015
• SEPA Process explained
• Geotechnical and Geological Hazard Evaluation (submitted by quarry consultant)
• Wetland / Forest Ecologist report - August 2016 (submitted by quarry consultant)
• Wetland / Forest Ecologist report - Sept 2016 Revision (submitted by quarry consultant)

Maps:

• Map of Proposed Quarry Expansion
• Raging River Topo Map in King County WA

Permit Process:

• Periodic Review for Current Quarry operations - released September 15, 2017
• Permit application for expansion of additional 26 acres - Early Notice of Likely Determination of Significance - released March 27, 2017. NOTE: This is not a final decision.

Maps:

• Map of Proposed Quarry Expansion
• Raging River Topo Map in King County WA

Other Information:

• Clinical Conditions Associated with Environmental Exposures - National Institute of Health study regarding quarry particulates