Training Calendar

2026 OAWU Training & Events Schedule

Updated: January 7, 2026

ONLY Ground Water Systems of 150 connections or less that are required to have a certified Small Groundwater operator click HERE for the Small Water System Training Course page.

Levels 1-4 Water Operator ExamsTrained and certified operators are necessary to ensure that the systems are managed in a manner that fully protects public health and the environment. The OARs for certification (http://public.health.oregon.gov/HealthyEnvironments/DrinkingWater/Rules/Pages/rules.aspx#cert) stipulate that the qualifying experience for applicants for certification as a water treatment plant operator must attain at least half the required operating experience at a public water purification plant that uses complex filtration technology and is not more than one classification lower than the level of certification they are seeking. In other words, if you have only worked for a Class 2 treatment plant, we allow you to apply for a Level 3 certification but not a Level 4 certification. If you move on to a Class 3 plant, then you must have 1/2 the qualifying experience (at the Level 3 plant) before allowing to apply for a Level 4 certification. Reciprocity from state-to-state ensures that the operator have the operating experience for which they are certified.For additional please visit:

More Resources Drinking Water Data Online: https://yourwater.oregon.gov/

Water Exam Information: https://www.oregon.gov/oha/ph/HealthyEnvironments/DrinkingWater/OperatorCertification/Levels1-4/Pages/exams.aspx

Drinking Water Services: https://www.oregon.gov/oha/PH/HEALTHYENVIRONMENTS/DRINKINGWATER/Pages/index.aspx

Check to see if you passed your Wastewater Operators Exam:
http://www.deq.state.or.us/wq/opcert/stpoperexamsqry.asp

For additional wastewater exam information, please visit: https://www.oregon.gov/deq/wq/wqpermits/Pages/Wastewater-Operator-Certification.aspx

For more information on any class by OAWU call 503-837-1212 Email: of****@**wu.net

Training class dates, class topic and/or locations may be subject to change as needed.
Oregon ESAC/CEU accreditation
Phone/Fax: 503-698-8494 in**@***ac.org • www.oesac.com