Focus On Water
Onsite Wastewater Treatment Facilities:
Professional Certification

Nebraska’s Private Onsite Wastewater Treatment System Contractors Certification and System Registration Act (Onsite Act), was passed in 2003 and requires that anyone doing work associated with onsite wastewater systems be certified by the State of Nebraska.

More information
List of Onsite Wastewater Treatment Businesses (opens in new tab)
  • Use this link to search businesses employing at least one Certified OWT Professional
  • This search displays: Business Name, Certified Professionals, Business Location & Phone

Certified Onsite Wastewater Treatment Professionals and Engineers (opens in new tab)
  • Use this link to search for individuals certified to inspect, install, or pump Onsite Wastewater Treatment Systems, or evaluate soil for siting OWT systems
  • This search displays: Professional's Name, Business Name, Certification and Endorsements and PDH Hours

Schedule of Exams

Onsite Wastewater Program Fees



Nebraska Department of Environment and Energy
Onsite Section
P.O. Box 98922
Lincoln, NE 68509-8922

NDEE phone: (402) 471-2186

Toll-free: (877) 253-2603


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