GRDE23-0083

Cumberland Aggregate Mine and Asphalt Plant

Extraction and processing of aggregates and construction of an asphalt plant. The project will be developed in four phases within a 35-year span.

Contact SEPA Project Manager Ty Peterson at 206-477-0449 or email: Ty.Peterson@kingcounty.gov

 

 

 

Notice of Application
2/6/2024

 

(Updated two new documents on 7/7/26) 

 

GRDE23-0083

Cumberland Aggregate Mine and Asphalt Plant

Extraction and processing of aggregates and construction of an asphalt plant. The project will be developed in four phases within a 35-year span.

Contact SEPA Project Manager Ty Peterson at 206-477-0449 or email: Ty.Peterson@kingcounty.gov

 

 

 

Notice of Application
2/6/2024

 

(Updated two new documents on 7/7/26) 

Determination of Significance and Request for Comments on Scope of EIS – NEW

SEPA Notice of Determination of Significance – NEW

SEPA Checklist (913 KB)

Appendix A, Mining, Grading, & Drainage Plan Set (18,375 KB)

Appendix B, Sound Analysis (2,527 KB)

Appendix C, Air Dispersion (7,388 KB)

Appendix D, Traffic Impact (17,731 KB)

Appendix E, Environmental Technical Report – Part 1
Appendix E – Part 2 (51,039 KB)
Appendix E – Part 3 (25,604 KB)
Appendix E – Part 4 (2,102 KB)
Appendix E – Part 5 (15,165 KB)
Appendix E – Part 6 (931 KB)
Appendix E – Part 7 (8,907 KB)
Appendix E – Part 8 (646 KB KB)
Appendix E – Part 8 – Map 1 (7,143 KB)
Appendix E – Part 8 – Map 2 (7,877 KB)
Appendix E – Part 8 – Map 3 (20,826 KB)
Appendix E – Part 8 – Map 4 (120,327 KB)
Appendix E – Part 8 – Map 5 (15,127 KB)
Appendix E – Part 8 – Map 6 (31,588 KB)
Appendix E – Part 8 – Map 7 (2,967 KB)
Appendix E – Part 8 – Map 8 (38,056 KB)
Appendix E – Part 9 (9,665 KB)
Appendix E – Part 10 (293 KB)
Appendix E – Part 11 (8,159 KB)
Appendix E – Part 12 (29,889 KB)
Appendix E – Part 13 (607 KB)
Appendix E – Part 14 (12,721 KB)
Appendix E – Part 15 (2,637 KB)

Appendix F, Technical Information (22,902 KB)

Appendix G, Cultural Resources (14,190 KB)

Appendix H, Critical Areas (12,012 KB)

Appendix I, Plants & Animals (228 KB)

Appendix J, Geotech (319,264 KB)

Appendix K, Fish Habitat (28,492 KB)

Appendix L, Limited Subsurface (15,342 KB)

Community Meeting Presentation, Feb. 26, 2024 (9,227 KB)

Community Sign-in Sheet, Feb. 27, 2024 (1,346 KB)