An Authorization approval is required when a change in use of a property may impact the ability of an existing septic tank system to function properly. An authorization may be required when adding bedrooms to a home, replacing a dwelling, adding a hardship dwelling connection, changing the use of a system from residential to commercial, etc. The approval is known as an Authorization Notice.
Forms and Applications
NEW! Washington County has launched the Washington County Public Permitting and Services Portal, an online system to allow the community to better connect with County services.
Visit the Public Permitting and Services Portal to submit septic applications. First-time users will need to complete the one-time account registration process. Watch the How-to-Register video. Once an account is created, you can obtain septic permits, track status, search for permits, schedule an inspection and view results.
If you do not want to apply online, the following information sheets and forms are available to download either individually or as a packet.