Upcoming Sessions:
Water Distribution
2-Day Exam Review Grades 1-2 July 28 – 29, 2025
2-Day Exam Review Grades 3-4 July 30 – 31, 2025
5-Day Water Distribution Exam Review Grades 1-2 July 7 – 11, 2025
Intermediate Water Supplies Principles Course Grades 3-4 July 14 – 22, 2025
*also see CEU Elective section for additional classes
Check our calendar to view even more class dates.
Water Treatment
2-Day Exam Review Grades 1-2 June 23 – 24, 2025
2-Day Exam Review Grades 3-4 June 25 – 26, 2024
Fundamentals of Drinking Water Treatment Course Grades 1-2 June 2 – 10, 2025
Fundamentals of Drinking Water Treatment Course Grades 3-4 June 9 – 17, 2025
3-Day Water Treatment Certification Test Prep Grade 5 August 25 – 27, 2025
**See our Southern California section below for Southern California dates on our Certified Test Prep classes.
*also see CEU Elective section for additional classes
Check our calendar to view even more class dates.
Wastewater
5-Day Wastewater Exam Review Grades 1-2 August 4 – 8, 2025
5-Day Wastewater Exam Review Grades 3-5 August 25 – 29, 2025
*also see CEU Elective section for additional classes
Check our calendar to view even more class dates.
CEU Elective, Specialty & Off-site Classes (individual classes subject to cancellation or change)
5-Day Certified Laboratory Program June 23 – 27, 2025
Southern California Classes
**Check back soon for updates on our upcoming scheduled classes!
If you, or your facility, are interested in scheduling any of OCT’s classes, reviews, or courses, please feel free to contact our Customer Service team Monday through Friday 7:30am – 3:30pm.
Check our calendar to view even more class dates.