Mercer Island, WA · King County
Sewer Lake Line Affidavit by Permit Applicant
This affidavit lets a Mercer Island permit applicant or authorized representative certify the sewer lake line’s field location and accept responsibility for project-related damage.
- licensed online notary
- ~15 min average
- Notarized PDF emailed
What you’ll need
- Government-issued photo ID
- Webcam-enabled device (laptop or phone)
- This form, ready to upload as a PDF
What this form is
The applicant identifies the project and permit, certifies their authority to make the statements, and describes how the sewer lake line was field located. The affidavit also confirms that the location shown on the submitted site plan reflects the line’s actual location and acknowledges responsibility for construction-related damage. Mercer Island Community Planning and Development uses the form for projects that involve the city’s sewer lake line.
Who needs it
A named permit applicant, or an authorized representative of an applicant entity, completes this affidavit for a project involving Mercer Island’s sewer lake line.
Why it needs a notary
The form has a “Signed or attested before me” block; the applicant or authorized representative signs or attests to the affidavit before a notary.
How to get this notarized
- 1
Download the Affidavit
Get the Sewer Lake Line Affidavit by Permit Applicant from Mercer Island’s Community Planning and Development.
- 2
Fill In the Project Details
Enter the project address, permit number, applicant name, and the method used to field locate the sewer line.
- 3
Book an Online Notary
Schedule a remote notarization with a commissioned online notary.
- 4
Sign on Video
Sign or attest to the affidavit during the online notary session.
- 5
Submit to the City
Send the completed affidavit to Mercer Island Community Planning and Development for the project.
Preview the form
The blank PDF straight from Mercer Island. Look it over, then upload your filled copy to start the notary session.
You’ll need ID and a webcam.
A licensed online notary will join you on video, verify your government-issued ID, witness your signature, and apply their seal. You’ll receive the notarized PDF by email when the session ends.
Frequently asked questions
- How do I complete the sewer lake line affidavit?
- Enter the project and permit details, identify the applicant, explain how the sewer line was field located, and sign or attest before a notary.
- Do I need to sign this affidavit in front of a notary?
- Yes. The form includes a “Signed or attested before me” notarial block, so the applicant or authorized representative must sign or attest before a notary.
- Can I use an online notary for this affidavit?
- Washington authorizes its notaries to perform remote online notarizations under RCW 42.45.280. A commissioned online notary can notarize the signature by video; confirm with the city or town if unsure.
- What does the affidavit certify?
- It certifies the applicant’s authority, states that the sewer lake line was field located and shown accurately on the site plan, and accepts responsibility for construction-related damage.