Private Onsite Wastewater Treatment Systems



Conventional In-ground Treatment

Aeration Treatment

Aerobic Treatment Units

Packed Bed Filters

Do's and Don'ts

Advantages and Disadvantages




Advantages and Disadvantages of Aeration Treatment


  • Higher level of treatment.
  • Protects groundwater and surface water.
  • Provides and alternative when the soil is not suitable for a conventional septic system.
  • Treats a larger amount of wastewater.
  • An option when conventional septic system has failed.
  • Can be used when the lot size is too small for a conventional septic system.
  • Can be used in high groundwater or shallow bedrock.


  • More expensive
  • Requires electricity
  • Regular maintenance is required every six months.
  • Can not be installed at a seasonal home.
  • Chemicals cause problems with the treatment processes.
  • Contains mechanical parts that could break down




Created 12/08/04