• To be used only for Conventional Gravity, Conventional Pressure, Sand Filter, Bottomless Sand Filter and Mound Systems
  • The following is a list of items that must be monitored and maintained to protect against failure of your on-site septic system. Inspection frequency is every three years for gravity and every year for all other system types. Please submit this report to comply with requirements of WAC246-272A-0270.
  • Homeowners are allowed to inspect the following system types in Mason County. Select your septic system type and provide answers to the relevant sections below, providing comments as needed.



  • General Site & System Conditions

    Septic Tank

    Distribution: D-Box

    Pump Tank:

    Pump: Effluent Pump

    Panel: Alarm - High Water

    Media Filter:

    Media Filter:

    Drainfield: