MISSOURI SMALLFLOWS ORGANIZATION
Advancing Education & Excellence in Onsite Wastewater
Dedicated to providing training, resources, and support for wastewater professionals across Missouri.
From continuing education classes to our annual conference, MSO is your hub for growth, connection, and innovation in the onsite wastewater industry.
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WHO WE ARE
Missouri Smallflows Organization (MSO) is a non-profit organization committed to strengthening Missouri’s onsite wastewater industry through continuing education, industry collaboration, and advocacy.
We serve:

Installers

Onsite Soil Evaluators

Environmental Health Professionals

Inspectors

Engineers
CONTINUING EDUCATION AT THE CORE
Education is the foundation of MSO.
We offer state-approved CEU classes throughout Missouri, online and in person, to keep professionals current with technologies, codes, and best practices.
LATEST ANNOUNCEMENTS
Fall Soils Seminar Registration is Now Open!
Join industry leaders, network with peers, and explore the latest tech in onsite systems.
ANNUAL CONFERENCE & TRADE SHOW
Our signature event brings the Missouri wastewater community together!
- Technology demos
- Expert sessions
- Networking opportunities
HOMEOWNERS: NEED A LOCAL SEPTIC PRO?
Use the Septic Locator tool powered by our national partner, NOWRA, to find trusted professionals near you.
STAY CONNECTED
Sign up to receive email updates about new classes, events, and industry news
FOLLOW US & CONNECT
MSO| Facebook
Mailing Address: 2733 E. Battlefield #132, Springfield, MO 65804
417-631-4027
contact@mosmallflows.org