Lewis County, WA Landscaping Rules: Composting (2026)

45 of the Lewis County Code, set permitting, siting, and operating standards for facilities that handle solid waste, from transfer stations to commercial composting operations. 060' outright. 060 defines 'home composting' as composting of on-site generated wastes, plus incidental materials that help the process, by the owner or person in control of a single-family residence or of a dwelling housing two to five families, such as a duplex or clustered units. Because that activity falls outside the chapter's applicability, a Lewis County resident composting yard trimmings, food scraps, or similar on-site waste in a home bin or pile does not need a solid waste handling permit, an operating plan, or health department sign-off under this chapter, and none of the chapter's setback, buffer, or design standards written for commercial composting facilities apply to that resident's pile.

The exemption sits alongside a closely related one for small farms: subsection (8) also excuses single-family residences and single-family farms whose year-round occupants dispose of solid waste under WAC 173-351-700(4). 45.