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FINAL BACKFLOW CLASSES FOR 2025

The final BAT Certification (5 Days) and BAT Refresher (3 Days) courses for 2025 are open for registration. 

Register early.

Remember to register for your exam with WCS - the exam is NOT included in the class.

WELCOME

WETRC has been providing quality training for environmental professionals since 1974.

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WHERE PASSION MEETS EDUCATION

BROWSE COURSES BY CATEGORIES

Home: Courses & Programs

WATER TRAINING

Courses approved by
WA Department of Health

WASTEWATER TRAINING

Courses approved by
WA Department of Ecology

WATER AND WASTEWATER TRAINING

Courses approved by
WA Department of Health and 
WA Department of Ecology

BAT TRAINING

Courses for Backflow Assembly Tester programs

ONLINE TRAINING

Courses for degree/certificate or CEU training

CONFERENCE

Washington Operator Workshop

Held Annually in March

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Home: Services
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"Instructor has developed a practical class structure that was very effective for instruction. Between the class content, connections and notebook of valuable resources, I can honestly say that I left class feeling professionally edified."

Jenifer T.

"I wanted to thank WETRC and specifically thank instructor for his teaching style and his approach to helping people understand backflows and the testing procedures for backflows. I am confident that it was his approach and methods that helped me understand the process.."

Donny S.

I would not have passed my WDM 2 certification exam without this class.  Class was well organized and instructor very knowledgeable.  Instructor was able to use different teaching styles in order for everyone to comprehend the subject matter.

Dale B.

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