Compressed gas cylinders
Disposal for households
new_releases Accepted at hazardous waste collection sites
• All containers must be 8 gallons or less. Limit 5 tanks per trip.
• Propane tanks larger than 8 gallons can be returned to the manufacturer or to a Blue Rhino location.
• Limit 5 tanks or cylinders for small propane/butane tanks, personal oxygen tanks, or any compressed gas cylinder under 2 feet in length.
Small gas canisters, such as camping canisters, can go in the garbage if they are empty. Empty or partially filled tanks, 8 gallons or less, can be taken to a household hazardous waste facility. King County Solid Waste transfer stations do not accept propane tanks of any size.
Contact the Hazardous Waste Help Line at 206-296-4692 or haz.waste@kingcounty.gov for more information and pre-approval.
Hazardous Waste Disposal Locations
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North SeattleSunday – Tuesday
12550 Stone Ave N Seattle, WA 98133
9 a.m. - 5 p.m.Closed on July 4, Thanksgiving Day, Christmas Day, and New Year's Day.
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South SeattleThursday – Saturday
8100 2nd Ave S Seattle, WA 98108
9 a.m. - 5 p.m.Located next to the transfer station.
Closed on July 4, Thanksgiving Day, Christmas Day, and New Year's Day. -
FactoriaTuesday – Friday, Saturday and Sunday
13800 SE 32nd St. Bellevue, WA 98005
8 a.m. – 4 p.m. (Tues-Fri), 9 a.m. – 5 p.m. (Sat-Sun)The Factoria facility is located at the transfer station. Closed on Thanksgiving Day, Christmas Day, and New Years Day.
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AuburnSaturday – Sunday
1101 Outlet Collection Way, Auburn, WA 98001
10 a.m. – 5 p.m.The Auburn Wastemobile location is open on weekends, year-round. Marine flares are not accepted at this location.
Located near the loading dock of Nordstrom Rack. In 2024, this location is closed Nov. 30, Dec. 1 and Dec. 28-29.
