Grass Valley considers Forest Service carbonizer for spring green-waste program

Jan 14, 2026

City staff outlined a proposed spring green-waste collection using a Forest Service-provided carbonizer/air-curtain incinerator (ACI) to process woody material at limited sites, aiming to reduce hauling and chipping costs and produce a biochar-like product for local use.

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City staff outlined a proposed spring green-waste program on Jan. 13 that would use an Air Curtain Incinerator (ACI), described in the meeting as a Forest Service-supplied carbonizer (referred to in the hearing as a 'charboss'), to process woody material brought by residents at designated drop-off points.

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