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Neighbors warn council that proposed Cumberland aggregate mine could bring heavy truck traffic, noise and large water demand

Eden Plus City Council · July 13, 2026
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Summary

Speakers at public comment told the Eden Plus City Council that the proposed Cumberland Aggregate Mine and asphalt plant could mean decades of gravel removal, as many as several hundred heavy truck trips per day, 24/7 operations, and daily water demands estimated at 175,000–250,000 gallons; King County's public comment period runs through August 7.

Julius Stevens, who lives in unincorporated King County near Enumclaw, addressed the council during public comment about the Cumberland Aggregate Mine and an associated asphalt plant. He told the council the proposed project anticipates "25 to 35 years of removing gravel from the area" and said the project materials show 24/7 hours of operation. Stevens warned of "approximately 298 to 668 heavy trucks per day" moving through nearby roads and said that level of traffic would affect road quality and local emergency services.

Stevens also cited water‑use estimates for the operation, saying the plant could need about "175,000 to 250,000 gallons a day." He urged councilmembers to review King County's project documents and noted the county's public‑comment window remains open through August 7; he left materials with the city clerk. Councilmembers did not take action on the matter at the meeting, but the comments were placed on the record for council and staff consideration as the King County permitting process continues.