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King County Industrial Waste Program
Partnering with industries to prevent pollution.
The King County Industrial Waste Program (KCIW) regulates approximately 650 commercial and industrial customers that discharge wastewater into King County’s regional wastewater system. KCIW functions under the County’s Wastewater Treatment Division (WTD) as a delegated industrial waste pretreatment program. KCIW is required to meet the National Pollutant Discharge Elimination System (NPDES) permit requirements for the division’s wastewater treatment plants.
KCIW issues wastewater discharge approvals, conducts inspections, performs sampling, monitors discharges, reviews and approves pretreatment systems, tracks compliance, and takes enforcement actions against facilities that violate requirements to protect workers, local and regional wastewater conveyance systems, the County’s treatment plants, and biosolids quality. KCIW works cooperatively with its customers, provides technical assistance, and presents awards to those that consistently meet pretreatment requirements.
Learn more from the King County Industrial Waste Program General Fact Sheet (1.28MB)
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Popular forms
Wastewater discharge permit application
Industrial Waste Program Survey
Forms for businesses
| Biotechnology: | Biotechnology supplementary questionnaire (17KB) |
| Breweries: | Breweries supplementary questionnaire (21KB) |
| Commercial septage discharged to the King County sewer system: | Septage acceptance application (32KB) |
| Construction site dewatering: | General authorization form (101KB) or Individual authorization form (245KB) |
| Contaminated industrial stormwater: | Supplemental application for discharge of contaminated stormwater (21KB) |
| Dental practice wastewater: | One-time compliance report form (313KB) |
| Medical facilities: | Discharge application for hospitals and medical laboratories (30KB) |
| Metal finishing: | Discharge application for hospitals and medical laboratories (30KB) |
Report a spill to the sewer:
Monday-Friday, 8 a.m. – 5 p.m.
|
King County Industrial Waste Program |
Nights and weekends – call your sewage treatment plant.
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Brightwater Treatment Plant |
West Point Treatment Plant |
South Plant / Vashon / Carnation Treatment Plant |
IW Topics A - Z
- About the King County Industrial Waste Program
- Annual report
- Application process
- Categorical pretreatment limits
- Commitment-to-Compliance Award
- Compliance monitoring and administration fees
- EnvirOvation Award
- High strength waste surcharge treatment fees
- How to pay
- Issuance fees
- Newsletter
- Post-violation inspection
- Prohibited wastewater discharges
- Sampling resources
- Self-monitoring forms
- Signature requirements
- Technical assistance
- Violation forms
- Wastewater discharge limits
- Wastewater discharge regulations
Quick links
About the King County Industrial Waste Program
Information about the King County Industrial Waste program and authorization for industrial wastewater dischargers.
Business information
Find information about specific industry standards, including forms and how your business can get authorized to discharge to the King County sewer system.
Forms, fees, and resources
Find application, permit, and reporting forms, information about current industrial waste fees, and resources for industrial dischargers into the King County sewer system.
Wastewater discharge limits and regulations
Learn about the limits and regulations for discharging wastewater into the King County sewer system. Including information about national categorical pretreatment standards.
Annual report
Read highlights from KCIW's annual report or download the full report.
Violation forms and postings
Find information about King County Industrial Waste Program violations.
Newsletter
Read the current and past issues of the King County Industrial Waste newsletter.
Rewards and recognition program
Organizations that exceed their permit requirements are awarded each year for their performance. Find information about last year's winners and criteria for each award.
Related agencies and organizations
Find information about agencies and organizations who work with the King County Industrial Waste program.