Most pesticide products become classified hazardous waste upon disposal and fall under the Washington State Dangerous Waste Regulations, Chapter 173-303 WAC, which is administered by the Washington State Department of Ecology. The regulations are complex. A grower who needs to dispose of pesticide formulations or excess tank mix should contact the appropriate regional Ecology office for guidance.
- Northwest Regional Office (Bellevue): 425-649-7000
- Southwest Regional Office (Lacey): 360-407-6300
- Central Regional Office (Yakima): 509-575-2490
- Eastern Regional Office (Spokane): 509-329-3400
The Washington State Department of Agriculture’s Waste Pesticide Program collects and disposes of unusable pesticides owned by agricultural pro- ducers. This program depends on state funding. Several collections are held throughout the state each year. Contact 1-877-301-4555 or visit their web site: https://agr.wa.gov/departments/pesticides- and-fertilizers/pesticides/waste-pesticide.
Triple-rinsed, plastic pesticide containers, large and small, are collected by the ACRC (Ag Container Recycling Program) contractor, which is currently Agri-Plas in Oregon; https://agriplasinc.com/. They provide collection and processing services for triple or pressure-rinsed plastic pesticide containers. They offer mobile grinding and whole container pickup, and have a pickup schedule on their web site.