Skip to content
Search…
Sign In
Menu
Close
About
Open menu
Board of Directors
Chapters
Student Chapters
Committees & Task Forces
Executive Office Staff
Education & Outreach
Open menu
Publications
Events & Conferences
Abstracts
Public Outreach
Membership
Open menu
Join / Renew
Utility Partnership Program
Awards
WEF
Operator Certification
Open menu
Pre-Certification Schools
Certification
Renewal
Operator Quizzes
Reciprocity
Voluntary Collections
Operations Challenge
Advocacy
Open menu
News & Press Releases
Positions & Letters
Scholarships
Open menu
Application
Scholarship Winners
Jobs
Open menu
Work in Water
Protecting Public Health and the Environment
Leading the way in water quality management
Women of Water Leadership Exchange
Post navigation
Previous post
Disinfection Alternatives
