Residents urge scrutiny of proposed Cumberland aggregate mine, cite heavy truck traffic and water use
July 13, 2026 | Enumclaw, King County, Washington
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Speakers during the public-comment period at the July 13 Eden Plus City Council meeting urged the council to review King County project materials for a proposed Cumberland Aggregate Mine and affiliated asphalt plant, citing long-term and regional impacts.
"They're looking at 25 to 35 years of removing gravel from the area," Julius Stevens, who said he lives in unincorporated King County outside Enumclaw, told the council. He warned the project proposal anticipates "approximately 298 to 668 heavy trucks per day" and described the operation as a "24 hour operation, seven days a week," saying that would push truck traffic through Enumclaw at all hours. Stevens also cited an estimate of daily water demand of "175,000 to 250,000 gallons a day." He urged council members to review the project details and noted King County had opened a public comment period through Aug. 7.
Another speaker, Linda Stevens, asked the council to consider conservation measures for about 990 acres north of Cumberland — including Lizard Mountain and nearby White River access — and raised concerns that a major extractive project could affect private wells and recreation access.
The council did not take formal action on the Cumberland proposal during the meeting. City staff and several residents encouraged review of the King County filings and use of the county comment portal before the Aug. 7 deadline.
Why it matters: Residents described potential traffic, noise, road‑wear and emergency‑services impacts that could extend beyond the immediate project footprint to neighboring cities and rural routes. The council does not make the county’s permitting decision, but council members heard requests to review the project materials and to consider municipal impacts on local roads and services.
What’s next: King County’s comment period closes Aug. 7. The Eden Plus City Council did not vote or direct staff to take a specific municipal action on the project at this meeting; residents said they left a copy of the county materials with the city clerk.
"They're looking at 25 to 35 years of removing gravel from the area," Julius Stevens, who said he lives in unincorporated King County outside Enumclaw, told the council. He warned the project proposal anticipates "approximately 298 to 668 heavy trucks per day" and described the operation as a "24 hour operation, seven days a week," saying that would push truck traffic through Enumclaw at all hours. Stevens also cited an estimate of daily water demand of "175,000 to 250,000 gallons a day." He urged council members to review the project details and noted King County had opened a public comment period through Aug. 7.
Another speaker, Linda Stevens, asked the council to consider conservation measures for about 990 acres north of Cumberland — including Lizard Mountain and nearby White River access — and raised concerns that a major extractive project could affect private wells and recreation access.
The council did not take formal action on the Cumberland proposal during the meeting. City staff and several residents encouraged review of the King County filings and use of the county comment portal before the Aug. 7 deadline.
Why it matters: Residents described potential traffic, noise, road‑wear and emergency‑services impacts that could extend beyond the immediate project footprint to neighboring cities and rural routes. The council does not make the county’s permitting decision, but council members heard requests to review the project materials and to consider municipal impacts on local roads and services.
What’s next: King County’s comment period closes Aug. 7. The Eden Plus City Council did not vote or direct staff to take a specific municipal action on the project at this meeting; residents said they left a copy of the county materials with the city clerk.
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