King County Industrial Waste program
Partnering with industries to prevent pollution
We administer regulations to make sure the wastewater generated by industries is treated properly. Many industries must pretreat wastewater before sending it to the sewer. This protects the wastewater treatment process, workers, facilities, and water quality.
And it works. Our waterways are cleaner today than in previous decades because business practices have improved.
Getting authorization to discharge to the King County sewer system.
- Learn more about getting authorization for your business sector
- Download application forms
- Requirements for discharging wastewater
Managing your permit/authorization
Hot topics
Learn more
Emergencies and spills
Rewards and recognition
Contact us
- Wastewater Treatment Division
- info.kciw@kingcounty.gov
- 206-477-5300
News and updates
- Fees and surcharges update
- News release: Industrial facilities honored for environmental compliance in 2017, June 19, 2018
- Update: In July 2017, the EPA published new regulations for dental offices.
- Newsletter
- Blog: Brewing up clean water | more Industrial Waste articles
What to do in case of a spill to the sewer , updated April 2018
