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Study shows compost facility feasible but capital costs could reach several million dollars

Whitman County Solid Waste Advisory Committee · March 10, 2026
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Summary

Staff cited a Great West study estimating county compost-facility costs in the roughly $4 million–$5 million range (cleanup, pavement, equipment, leachate ponds), and committee members said building such a facility would be expensive and require careful planning.

Staff discussed feasibility and key cost drivers for a potential county compost facility, noting that site cleanup (potential lead from prior shooting-range use), earthwork, pavement/concrete pads, leachate management and equipment are major cost components. Staff said a Great West study had estimated capital needs in the range of roughly $4.3 million to about $5 million, and county members cautioned that prices have escalated since that study.

A committee member asked for specifics about the major expenses; staff reiterated the primary drivers were site prep and earthwork and added that the county does not have $4–5 million sitting idle and wants to avoid committing large tax funds without clear use. Members noted the facility is feasible but will need careful financial planning and potential grant or partner support.