Wastewater Treatment System Setbacks

Minimum required distances for placing components of a wastewater treatment system (septic system). This list is part of the Iowa Administrative Code 567-69 "On-Site Wastewater Treatment and Disposal Systems" which contains a complete set of rules governing the installation of wastewater systems and may be found here

 
Minimum distance in feet from:
  Septic tank (1)
Secondary Treatment (2)
Private water supply well 50 100
Public water supply well 200 200
Groundwater heat pump borehole 50 100
Lake or reservoir 50 100
Stream or pond 25 25
Edge of drainage ditch 10 10
Dwelling or other structure 10 10
Property lines (unless a mutual easement is signed and recorded 10 10
Other type of subsurface treatment system 5 10
Water lines continually under pressure 10 10
Suction water lines 50 100
Foundation drains or subsurface tiles 10 10

(1) Includes septic tanks, mechanical aeration tanks and impervious vault toilets.
(2) Includes subsurface absorption systems, mound systems, intermittent sand filters, constructed wetlands or waste stabilization ponds.