Applications, forms, and fees

Wastewater applications

• Application for Final Subdivision (494 KB)
• Application for Health Department Approval of Building Permit (347 KB)
• Application for Health Department Review of Boundary Line Adjustment or Rezone 460 KB)
• Application for Winter Water Table Review (WWTR) (459 KB)
• Application to Change Designer of Record (306 KB)
• Pre-Application for Review of Subdivision (500 KB)
• Repair proposal form for on-site sewage system (OSS) (381 KB)
• Instructions for Preparing an Appeal to the Health Officer via the King County Sewage Review Committee (SRC) Process (442 KB)

Site design application form

• Online: See instructions on how to submit the On-Site Sewage System (OSS) Site Design application and required and optional checklist
• Submit your application at the online services portal
• Mail: Site Design Application Form for Individual On-Site Sewage System (OSS) (221 KB)

Wastewater forms

• Search and download an as-built Drawing for a property in King County
• 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 (1.073 KB)
• Designer's Pre-Installation Inspection Report/Stub-Out Release (166 KB)
• District Waiver Request (19 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 (196 KB)
• On-site Sewage System/Sewage Tank Service Report (83 KB)
• Report of Wastewater Tank Abandonment (290 KB)
• Waiver form for property transfer inspection (49 KB)