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Residents warn council the proposed Cumberland aggregate mine could bring heavy truck traffic and large water use

Eden Plus City Council · July 13, 2026
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Summary

A nearby resident told the Eden Plus City Council the proposed Cumberland Aggregate Mine and asphalt plant could operate 25–35 years, bring 298–668 heavy truck trips per day, run 24/7 and use 175,000–250,000 gallons of water daily; King County's comment period was noted as open through Aug. 7.

Julius Stevens, a resident of unincorporated King County, told the council the Cumberland Aggregate Mine and proposed asphalt plant would have long-term and regional impacts. Stevens said the project could last "25 to 35 years of removing gravel from the area," run 24/7 and produce roughly "298 to 668 heavy trucks per day," which he warned would affect Enumclaw's traffic patterns, roads and emergency services.

Stevens also drew attention to anticipated water use and noise: he reported planners estimate "175,000 to 250,000 gallons a day" for operations and urged the council to review King County's project materials and submit comments before the county comment period ends on August 7. He left printed materials with the city clerk for council review.