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Business waste resources
Hazardous business products
Information about which hazardous business products and materials are accepted at our disposal facilities.
Disposal facilities
We help eligible King County businesses access resources to safely dispose of hazardous waste. Find a convenient disposal location available year round, or visit the traveling Wastemobile which operates seasonally. There are no fees to use these disposal services.
Business incentives, consultations, and other services
The best way for businesses to deal with hazardous waste is not to produce it — or to produce less of it. You can help protect people and the environment by reading product labels and choosing the least hazardous products available.
Important reminders for businesses
- Businesses are allowed a maximum of 220 pounds (about 25 gallons) of hazardous waste per visit.
- Businesses are allowed a maximum four visits per year.
- All businesses must fill out a Business Disposal Form prior to drop-off. Print two copies and bring with you to your drop-off location.
- Containers must be 5 gallons or less and weigh less than 60 pounds each.
- Limit 5 for any acceptable compressed gas cylinder under 2-feet in length.
- No unlabeled or unknown waste will be accepted.
- Lab waste must be pre-approved. Email a list of your laboratory chemicals (including the chemical names, concentrations, and volumes) to haz.waste@kingcounty.gov for approval.
- Peroxide-forming chemicals will not be accepted without a Peroxide-Forming Chemical Evaluation Sheet to ensure that best management practices have been followed. E-mail haz.waste@kingcounty.gov for more information.
- Maximum for a single non-auto or marine battery is 25 pounds (lithium, other rechargeable, or alkaline batteries).
- 50-pound total weight limit for any combination of non-auto or marine batteries per visit.
- Businesses must sort batteries by type and secure (tape) the terminals on lithium and rechargeable batteries.
- Batteries from electric vehicles are not accepted.