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Residents warn Cumberland aggregate mine could bring decades of trucks, water use and noise

Eden Plus City Council · July 13, 2026
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Summary

Residents told Council the proposed Cumberland Aggregate Mine and asphalt plant could operate 24/7 for '25 to 35 years,' generate hundreds of heavy‑truck trips daily, and use '175,000 to 250,000 gallons a day' of water, raising traffic, noise and well‑water concerns for Enumclaw and neighboring communities.

Julius Stevens, a resident living in unincorporated King County, told the council the proposed Cumberland Aggregate Mine and asphalt plant could have long‑term regional impacts and urged the city to review King County project documents and submit comments by the county deadline. "They're looking at 25 to 35 years of removing a gravel from the area," Stevens said, and warned the project could send "298 to 668 heavy trucks per day" through local routes and operate around the clock.

Stevens flagged potential water demand, saying the project may require "175,000 to 250,000 gallons a day" and listed expected consequences for traffic, noise, road wear and emergency services across communities including Auburn, Muckleshoot, Enumclaw and Covington. He said King County’s comment window runs through Aug. 7 and left documentation with the city clerk.