Septic Tank Drain Fields Regulations for Georgia

Georgia has regulations covering the location, installation and operation of on-site sewage treatment systems that include rules governing a drain or absorption field.



All new installations of septic sewage systems must be inspected and receive a permit from a county health department within Georgia. The local sanitarian, from a county health department, must carry out an effective absorption rate test, where a percolation test is used. A rate of 20 minutes to 90 minutes per inch is classed as a good rate of absorption for a drain field.


A drain field uses the natural filtration of soil to remove harmful bacteria and pollutants from wastewater; Georgia calculates the amount of drainage needed by the number of bedrooms in a building. The peak water usage each day is classed as 150 gallons per bedroom, which a drainage field must be able to absorb without allowing sewage to enter groundwater supplies.


A septic sewage system must be installed, included hard pipes carrying wastewater to a drainage field by a contractor certified by the state. The location of a drain field is required to be determined using a soil sustainability analysis, which uses Soil and Water Conservation Commission maps to determine the type of soil in different areas of Georgia.

About the Author

Paul Cartmell began his career as a writer for documentaries and fictional films in the United Kingdom in the mid-1990s. Working in documentary journalism, Cartmell wrote about a wide variety of subjects including racism in professional sports. Cartmell attended the University of Lincoln and London Metropolitan University, gaining degrees in journalism and film studies.