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Nearby landfill says it can take 800'1,400 tons a day; methane capture plans discussed

Whitman County Solid Waste Advisory Committee (SWAC) ยท June 9, 2026
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Summary

A guest operations manager described the Adams/Washtucna-area landfill's current intake (about 800'1,000 tons per day, up to 1,400 in bypass), said the site currently has limited organics processing, and said plans for gas extraction exist though methane is not yet produced at scale.

A guest from the nearby Adams/Washtucna landfill described the facility's current operational capacity and early-stage plans for gas energy.

Dan, the landfill operations manager, said the site averages roughly 800 to 1,000 tons per day under normal conditions and can reach about 1,400 tons per day when in bypass: "Right now, we average between 800 to 1000 on a regular day. If we're in bypass, it can go upwards of 1,400 a day." He said the site was taking contracts from Spokane, Sandpoint and Adams County and was working on additional contracts.

Dan also said the site currently has no organics program and that methane production at the site is low now; he described staged plans for gas extraction and a future gas-energy plan in the coming years. Committee members and industry representatives discussed how removing organics from MSW could reduce landfill methane production and noted that industry already harvests landfill gas at many sites.

"Majority of our methane comes from the organics," Dan and industry representatives agreed; the committee discussed how organics policies and new markets for compost will affect landfill gas volumes and energy uses.