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
October 25 - October 28, 2026 Westminster, Colorado In cooperation with CPOW Call for Abstracts CLOSED! Watch for registration information coming late this spring.
Conference InformationTaught 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 ProvinceGet assistance with your septic system design, installation, repair or maintenance. Search our directory to find a local professional.
Online DirectoryFind upcoming events, learn about key industry issues and trends, and get updates to NOWRA's recent activities.
News EventsThe 2026 Conference Preview Edition of the Onsite Journal is now available. Inside, find out about all the exciting events taking place at this year's Mega-Conference being held in October in Westminster Colorado.
Read More about Fall 2026 Onsite Journal is HereNOWRA's Homeowner Folder is a great resource for homeowners to keep track of maintenance and documents related to their onsite wastewater system. This newly revised folder features updated graphics, tips for maintaining the onsite system, and general information about systems. The folder can be downloaded as a PDF or print copies are available for order.
Read More about Updated Homeowner Folder Now AvailableHelp us spread the word and join us on September 14 for a free Septic Smart Week webinar.
Read More about Septic Smart Week Webinar September 14Watch for information about 2026 Legislative plans.
NOWRA is active in lobbying for policies and increased funding in support of onsite / decentralized treatment systems.
Mark your calendar! SepticSmart Week is September 14-18, 2026. 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 NOWRA's 2026 Septic Smart Proclamation.
