DRINKING WATER & WASTEWATER PROFESSIONALS 


Mission Statement

To help protect the public health, safety and welfare through the regulation of water and wastewater facility operators in Idaho.



Welcome to the Board's webpage! Information and announcements will be posted here. Please click the links on the left for specific areas of interest.

The Board recently made changes to the exam process The Board is now contracting with testing centers located at the colleges listed below:

  • North Idaho College - Workforce Training Center - Post Falls

  • Lewis-Clark State College - Lewiston

  • College of Western Idaho - Nampa or Boise

  • College of Southern Idaho - Twin Falls

  • Idaho State University - Pocatello

  • Eastern Idaho Technical College - Idaho Falls

Examinees will be able to contact a testing center to schedule the online exam and the exam can be taken at the examinee's convenience.

Written exams will be offered in April and October at the Bureau of Occupational Licenses in Boise.

The application forms available under the link to "forms" on the left side of the page have been updated to reflect the new exam locations.


Please note that the Board’s rules recently changed to adopt a Backflow Assembly Tester Code of Ethics. To review the new rule, please click HERE. The Code of Ethics can be found in Rule 650.


Click the Calendar link on the left for scheduled Board meetings and agendas.

 "Backflow assembly tester" means a person who tests backflow prevention assemblies and who holds a current Idaho backflow assembly tester license.

"Drinking water operator" means any person who operates public drinking water systems, water treatment plants or other systems in order to treat water so that it is safe to drink and who holds a current Idaho water system operator license.

"Wastewater operator" means a person who operates public wastewater systems, or public wastewater treatment plants or other systems, in order to remove harmful pollutants from domestic and industrial liquid waste so that it is safe to return to the environment, and who holds a current Idaho wastewater system operator license.

Backflow assembly testers and the operators of drinking water and wastewater facilities are regulated in Idaho and are required to be licensed.


Please contact the Board if you have questions via phone at (208) 334-3233 or via E-mail at wwp@ibol.idaho.gov