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Applications, forms, and fees
Find applications and forms for the on-site sewage/septic system industry.
NOTICE
Delays in service due to new permit system: Environmental Health Services has transitioned to a new permit system. Please have patience as we work through this transition time.
To create an account and get guidance on the system, see Public Health Permit Center.
Wastewater applications
Submit an application for the below wastewater permits through the Public Health Permit Center.
- Application for Health Department Approval of Building Permit
- Application for Winter Water Table Review (WWTR)
- Application for Final Subdivision
- Application for Health Department Review of Boundary Line Adjustment or Rezone
- Application to Change Designer of Record
- Pre-Application for Review of Subdivision
- Repair proposal form for on-site sewage system (OSS)
- Application for reconsideration of decision/ order via the King County Sewage Review Committee
The applications above require different documentation, which will be outlined in the application process in the Public Health Permit Center.
- Support identifying required documents: Public Health Permit Center Septic Glossary (461 KB)
- How to use the Public Health Permit Center
Site design application form
See how to submit the On-site Sewage System design application through the Public Health Permit Center.
Wastewater forms
- On-site sewage systems (OSS) Record Drawing Certification of Completion (173 KB)
- OSS Performance Demonstration Report (386 KB)
- King County site development process flow chart (113 KB)
- Buyer's Declaration of Receipt of Copy of Notice of On-Site Sewage System Operation and Maintenance Requirements (example only) (11 KB)
- Drainfield Easement Form (example only) (62 KB)
- Declaration of Covenant: Detached Structure Restriction (396 KB)
- Declaration of Covenant: Bedroom Restriction (1 MB)
- Designer's Pre-Installation Inspection Report/Stub-Out Release (166 KB)
- District Waiver Request (19 KB)
- Installers backfill notification - Request for final inspection (66 KB)
- Repair proposal form for on-site sewage system (OSS), (448 KB)
- Request form of public information needed by OSM to complete inspection report (80 KB)
- Notice on Title Generic Form: Notice of On-site Sewage System Operation and Maintenance Requirements (OSSM) (197 KB)
- Explanation of OSSM - Generic Form (279 KB)
- Non-conforming Notice on Title: Notice of On-Site Sewage System Operation and Maintenance Requirements (226 KB)
- Notice of Operation and Maintenance Requirements for Nonconforming On-Site Sewage System (180 KB)