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





  • Do get to know your aeration system, know how it works, where it is, and be able to recognize problems.
  • Do maintain a contract with a service provider after the NSF two-year period.
  • Do contact your service provider when there is a problem with your system.
  • Do keep records of about your system and the maintenance.
  • Do keep your system accessible but protected. 
  • Do divert storm water away from the system.  Excess water reduces the soils ability to treat the wastewater.    
  • Do avoid heavy traffic over any part of the system.  Pressure can damage pipes.


  • Donít make any changes or repairs without the required permits from your health department.
  • Donít use your garbage disposal unless you know your system will be able to accommodate it.
  • Donít perform maintenance on your own system.
  • Donít dump harmful chemicals down drains or the toilet.  These chemicals can kill the bacteria that live in your system.

Things not to flush:

  • Disposable diapers
  • Feminine hygiene products
  • Condoms
  • Hair
  • Bandages
  • Fats or Oils
  • Paper towels
  • Coffee grounds
  • Dental floss
  • Paints
  • Pesticides
  • Varnishes
  • Photographic solutions
  • Kitty litter
  • Cigarette butts




Created 12/08/04