Bellevue, WA · King County
Non-Residential Sewer Use Certification
This form certifies sewer use and estimates wastewater flow and residential customer equivalents for owners or representatives of nonresidential properties.
What this form is
Complete this certification for a new sewer connection, reconnection, or change of use of an existing connection. It records property and owner details, fixture counts, estimated wastewater discharge, and information about any demolished structures. King County uses the information to determine the sewage treatment capacity charge; the owner or representative confirms the information is correct by signing and dating the form.
Who needs it
Owners or representatives of nonresidential properties need this form for a new sewer connection, reconnection, or change of use.
How to submit it
Submit it to the city department named on the form; check the city website for current contact details.
About notarization
This form has no notary block; the owner or representative signs and dates it, and the document does not identify a notarized attachment or related step.
How to submit this form
- 1
Download The Form
Download the Non-Residential Sewer Use Certification PDF.
- 2
Complete The Form
Print or type the property, owner, fixture, wastewater flow, and sewer or building permit information requested.
- 3
Gather Attachments
If reporting a demolished structure, include a copy of the demolition permit, as the form requests.
- 4
Sign And Date
The owner or representative signs and dates the certification.
- 5
Submit To The City
Submit it to the city department named on the form; check the city website for current contact details.
Frequently asked questions
- Do I need a notary for the Non-Residential Sewer Use Certification?
- No. The form has no notary block; the owner or representative signs and dates it. The document does not identify a notarized attachment or related step.
- How do I submit the Non-Residential Sewer Use Certification?
- Submit it to the city department named on the form; check the city website for current contact details.
- When is this sewer use certification required?
- The form says it must be completed for all new sewer connections, reconnections, or changes of use of existing connections.
- What information does the form ask for?
- It asks for property and owner details, fixture counts, estimated wastewater discharge, sewer or building permit information, and details about any demolished structures.
Need something notarized?
This Non-Residential Sewer Use Certification doesn’t need a notary — but if you have another Bellevue form that does, a commissioned online notary can help.