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​Washington On-Site Sewage Association

​Enhanced Platform for Online Courses

WOSSA Online Training Link​ 


WOSSA is excited to announce that we have transferred our distance learning courses to a more user friendly platform with NOWRA! 


Basics of On-Site 101 Syllabus

Learners will earn 8 contact hours or .8 CEU 


Basics of On-Site 102 Syllabus 

Learners will earn 8 contact hours or .8 CEU