To ease in understanding, the health district developed this process for potential designers.
Below is a higher-level description of this process.
In accordance with WAC 246-272A-0230, on-site sewage systems may only be designed by professional engineers, licensed under chapter 18.43 RCW, or on-site sewage treatment system designers, licensed under chapter 18.210 RCW.
The health district does not license on-site sewage system design professionals or engineers, and does not verify license status on a continuous basis. To check the license status of a designer or engineer, visit the Washington State Department of Licensing website.
The health district maintains a list of licensed designers for convenience. It consists of individuals and companies that requested inclusion after being licensed. Spokane Regional Health District does not endorse, recommend, or warrant the work of any design professional or engineer.
Current Designers List (PDF)