Skip to main content

Water Q & A - Septic system placement

Septic tank treatment diagram, Nebraska Extension Acreage Insights April 2018. http://acreage.unl.edu/enews-April-2018
Diagram of how a septic tank treats water

Do you have questions about your private drinking water supply?  How about wellhead protection, including the management of your private sewage treatment system?  Don't hesitate to email us through the UNL Water Website for guidance and answers to your well & septic questions.

Q:  We are building a house on an acreage.  Towards the back of the property is a small stream. How far does our septic system have to be from the stream?

A: A septic system and/or a soil absorption field (commonly referred to as a drainfield), needs to be at least 50 feet away from any surface water.  Lagoon systems also need to be a minimum of 50 feet from surface water. Surface water includes streams, lakes, ponds, rivers, and wetlands.  All set back distances can be found in Title 124, which is the set of regulations covering onsite wastewater systems. 

This article is based on original content by Meghan Sittler, former Nebraska Extension Educator. Updated July 2024.

Image of Becky Schuerman, Nebraska Extension Associate
Becky Schuerman
Extension Associate, Domestic Water, Wastewater Management
Becky Schuerman is the Nebraska Extension Associate for Domestic Water/Wastewater Management. She has been in this role since 2019 and previously worked in the regulatory field for the State of Nebraska Public Drinking Water and Water Well Standards Programs for over 17 years. Becky is no stranger to working collaboratively with the Nebraska Well Drillers and Onsite Wastewater Associations, Nebraska’s NRDs, Nebraska Rural Water Association, Nebraska Section AWWA, the Groundwater Foundation, NDEE, UNL and EPA Region 7. Becky holds a Bachelor of Science in Ag & Natural Resources, is a graduate of the Nebraska Water Leaders Academy, and is working on her Master of Science degree in Natural Resources, Human Dimensions.

Contact Becky at:
Lancaster County Extension
444 Cherrycreek Rd Ste A
Lincoln NE 68528-1591
402-441-7180