Summer 2025 OSJ Available
Learn about NOWRA and RCAP's new workshops, reduced disposal areas using secondary treatment, and our spotlighted State Affiliate, the Missouri Smallflows Organization.
Read MoreNational Onsite Wastewater Recycling Association
NOWRA is the largest organization in the U.S. dedicated to representing the onsite and decentralized wastewater industry. Our mission is advancing sustainable decentralized wastewater infrastructure through advocacy and professional development, to protect public and environmental health
-
Onsite Wastewater Mega-Conference
October 19 - October 22, 2025
Conference Information
Sandusky, Ohio In cooperation with OOWA
The Call for Abstracts for the 2025 Onsite Wastewater Mega-Conference is now OPEN! -
Online Education
Taught by industry experts, NOWRA's Academy offerings cover the fundamentals of the profession as well as advanced training in multiple topics.
Available to Members and Non-Members alike.
Select Your State or Province -
Septic Locator
Get assistance with your septic system design, installation, repair or maintenance. Search our directory to find a local professional.
Online Directory
News & Events
Find upcoming events, learn about key industry issues and trends, and get updates to NOWRA's recent activities.
News Events2025 Emerging Professionals Scholarship Applications Now Open
Applications are open for the 2025 Emerging Professionals Scholarship now through August 15.
Read More2025 Mega-Conference Call for Abstracts Still Open for Posters
The Call for Poster Abstracts for the 2025 Onsite Wastewater Mega-Conference is open through June 30.
Read MoreAdvocating On Your Behalf
Watch for information about 2025 Legislative plans.
NOWRA is active in lobbying for policies and increased funding in support of onsite / decentralized treatment systems.
Be SepticSmart!
Mark your calendar! SepticSmart Week is September 15-19, 2025. Each year the EPA uses SepticSmart Week to reach out to homeowners and communities, to care for and maintain their septic systems. Learn more about septic system care and maintenance and practice year round. View EPA's 2024 Press Release.
