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Most facilities applying for approval to discharge industrial wastewater will submit the standard survey or permit application.

Note: Even if you DO NOT need to apply for a permit, you are still subject to Federal, State, and/or Local discharge limits and regulations .

New customers

Please call us. A staff member will walk you through which forms to fill out.


Renewing customers

Your renewal letter indicates which forms you need to fill out. Find links to the forms below.

Forms and instructions

If you have difficulty viewing or downloading documents, please visit Software Help

Industrial waste program survey

Fill out the survey if a KCIW staff member or your renewal letter has instructed you to do so. KCIW will use your responses to this survey to determine if you need to submit a wastewater discharge permit application.

What happens after you submit a survey?

Upon evaluating your survey form, the Industrial Waste Program may be able to make a permitting decision based on the survey form or it will request that your facility submit a wastewater discharge permit application. KCIW will contact you with further instructions.

Wastewater discharge permit application

Fill out the permit application if a KCIW staff member or your renewal letter has instructed you to do so.

Supplemental forms

Please use these business sector specific forms in addition to the forms above as instructed by a KCIW staff member or your renewal letter.

Sector Forms to download
Biotechnology Biotechnology Supplementary Questionnaire
Breweries Breweries Supplementary Questionnaire
Commercial septage discharged to the King County sewer system Septage Acceptance Application
Construction site dewatering General Authorization form  or an Individual Authorization form
Contaminated industrial stormwater Supplemental application for discharge of contaminated stormwater
Dental practice wastewater

One-Time Compliance report form

Medical facilities May require a Discharge Application for Hospitals/Medical Laboratories
Metal finishing Metal finishing Supplementary Questionnaire
Wineries Wineries Supplementary Questionnaire
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