• Alabama's Water Environment Association
• Alaska Water Wastewater Management Association
• California Water Environment Association
• Central States Water Environment Association (IL, MN, WI)
• Chesapeake Water Environment Association (DE, DC, MD)
• Illinois Water Environment Association
• Kansas Water Environment Association
• Kentucky-Tennessee Water Environment Association (KY, TN)
• Louisiana Water Environment Association
• Michigan Water Environment Association
• Missouri Water Environment Association
• Montana Water Environment Association
• New England Water Environment Association (CT, ME, MA, NH, RI, VT)
• New Jersey Water Environment Association
• New York Water Environment Association
• North Carolina Water Environment Association
• Ohio Water Environment Association
• Oklahoma Water Environment Association
• Pacific Northwest Clean Water Association (ID, OR, WA)
• Water Environment Association of Texas
• Virginia Water Environment Association

Canada

• British Columbia Water and Waste Association
• Water Environment Association of Ontario

Please see the Member Associations page for more details.