Check the conditions for your item
Confirm that your property is inside the city service area. A ZIP code alone does not establish service.
Your item, your situation
Find your next step
Keep the details close
The local rules
Follow the conditions that match your item and collection service. Open any rule for the full instructions and sources.
Special drop-offReviewed ruleApplies when: Is the product identified and the container sound?: Known product in a sound, labeled container · Is it liquid thinner without sludge or other mixed waste?: Identified liquid thinner; no sludge or mixture
Use a household hazardous-waste facility for this identified product.
For households · Seattle Public Utilities household collection
Exceptions to check
- This record covers liquid thinner; ask the help line about sludge or mixed material. King County Hazardous Waste Management Program: Paint thinner disposal
Quantity limit: Containers no larger than 5 gallons; total waste at most 50 gallons per trip.
Reviewed September 22, 2026 · Review overdue
Seattle Public Utilities: Where to Dispose of Household Hazardous Waste · King County Hazardous Waste Management Program: Paint thinner disposalVerify with the agencyReviewed ruleApplies when: Is the product identified and the container sound?: Damaged container; no active spill, gas leak, fumes, or immediate danger or Unknown product or missing label
Call the Haz Waste Help Line at 206-296-4692 for instructions for this condition. A routine drop-off has not been confirmed.
For households · Seattle Public Utilities household collection
Exceptions to check
- Unknown or unlabeled waste is not accepted at the hazardous-waste sites. King County Hazardous Waste Management Program: Unknown or unlabeled waste disposal
Reviewed September 22, 2026 · Review overdue
Seattle Public Utilities: Where to Dispose of Household Hazardous Waste · King County Hazardous Waste Management Program: Unknown or unlabeled waste disposalVerify with the agencyReviewed ruleApplies when: Is the product identified and the container sound?: Active hazardous spill, leaking gas, toxic fumes, fire, or immediate danger
Leave the area, warn others to stay away, and call 911 for an active hazardous spill, gas leak, toxic fumes, fire, or immediate danger.
For households · Seattle Public Utilities household collection
Reviewed September 22, 2026 · Review overdue
Seattle Office of Emergency Management: Hazardous materials emergency instructions · Seattle Public Utilities: Spill Response ProgramVerify with the agencyReviewed ruleApplies when: Is the product identified and the container sound?: Known product in a sound, labeled container · Is it liquid thinner without sludge or other mixed waste?: Sludge, mixed waste, or uncertain contents
Call 206-296-4692 about sludge or mixed material. The liquid-thinner drop-off rule does not confirm this waste, and no separation or treatment instructions are provided here.
For households · Seattle Public Utilities household collection
Reviewed September 22, 2026 · Review overdue
Seattle Public Utilities: Where to Dispose of Household Hazardous Waste · King County Hazardous Waste Management Program: Paint thinner disposal