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  • MSO/MAPSS Soils Seminar 2025

    Location: Lawson, Dykes Construction Full Day Class: 8:30 AM - 3:30 PM Lunch is provided. DHSS General CEUs: 6.0 Select CEUs: Basic: 6.0, Advanced: 6.0, Inspectors: 0, OSE: 6 Member […]

  • Drip Irrigation Seminar

    SI Precast (Wilbert Funeral Services) 1501 S Empire Ave, Springfield, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 6.5 Select: Basic: 0, Advanced: 6.5, Inspectors: 6.25, Onsite Soil Evaluators: 4.0, and Perc Testers: 0 DNR Wastewater CEUs: […]

  • What’s in my yard?

    SI Precast (Wilbert Funeral Services) 1501 S Empire Ave, Springfield, MO, United States

    Full Day class: 8:30 AM - 4:00 PM DHSS General CEUs: 6.5 Select: Basic: 5.5, Advanced: 5.5, Inspector: 1.5, OSE: 1.0 Member price: $150 Non-member price: $235 Register Now

  • Inspecting Tanks, Lagoons & LPP – Cancelled

    St. Charles Administration Building 201 N 2nd St #429, St. Charles, MO, United States

    Cancelled due to insufficient registrations. Full Day Class: 8:30 AM - 4:00 PM DHSS General CEUs: 5.0 Select CEUs: Basic: 0, Advanced: 0, Inspector: 5, OSE: 0, Perc Tester: 0 […]

  • Troubleshooting Onsite Systems

    St. Charles Administration Building 201 N 2nd St #429, St. Charles, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 6 Select CEUs: Basic Installers: 6, Advanced Installers: 6, Inspectors and Evaluators: 6, Onsite Soil Evaluators: 0 DNR Wastewater […]

  • Aerated Treatment Units

    Turkey Creek Wastewater Plant 3457 W Eddy Lane, Joplin, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 7 Select CEUs: Basic Installers: 7, Advanced Installers: 7, Inspectors and Evaluators: 5, Onsite Soil Evaluators: 0 DNR Wastewater […]

  • Drip Irrigation

    Turkey Creek Wastewater Plant 3457 W Eddy Lane, Joplin, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 6.5 Select: Basic: 0, Advanced: 6.5, Inspectors: 6.25, Onsite Soil Evaluators: 4.0, and Perc Testers: 0 DNR Wastewater CEUs: […]

  • Trickling through Media Filters

    Ganey Engineering 3405 Old Hwy M, Imperial, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 6 Select: Basic: 0, Advanced: 6, Inspectors: 5, Onsite Soil Evaluators: 0, and Perc Testers: 0 DNR Wastewater CEUs: […]

  • Earthen Structures & Above-Ground Dispersal Methods

    Ganey Engineering 3405 Old Hwy M, Imperial, MO, United States

    Full Day Class: 8:30 AM - 4:30 PM DHSS General CEUs: 6.5 Select CEUs: Basic Installers: 3.5, Advanced Installers: 4.0, Inspectors and Evaluators: 3, Onsite Soil Evaluators: 1.5 DNR Wastewater […]

  • 2026 MSO Conference & Trade Show

    Register today for the once-a-year event to earn CEUs and learn about new technologies.  Register through our website and see details there. Register Now

  • Trickling through Media Filters

    Kearney Winsupply 1000 W Innovation Dr,, Kearney, MO, United States

    Full Day Class: 8:30 AM – 4:30 PM DHSS General CEUs: 6 Select: Basic: 0, Advanced: 6, Inspectors: 5, Onsite Soil Evaluators: 0, and Perc Testers: 0 DNR Wastewater CEUs: […]

  • Earthen Structures & Above-Ground Dispersal Methods for OWTS

    Kearney Winsupply 1000 W Innovation Dr,, Kearney, MO, United States

    Full Day Class: 8:30 AM – 4:30 PM DHSS General CEUs: 6.5 Select: Basic: 3.5, Advanced: 4, Inspectors: 3, Onsite Soil Evaluators: 1.5, and Perc Testers: 0 Member Price: $150 […]