Find county and homeowner requirements, frequently asked questions, and a certified inspector list.
Read the most recent Alternative Onsite System Maintenance Annual Report for Loudoun County.
Check out forms and instructions for well and septic install, repair, or abandonment, subdivision, and soil review.
Read the Loudoun County Ordinance Chapter 1066 Onsite Sewage Treatment Systems.
Browse the various lists for inspectors, pump and haul contractors, and well drillers and pump installers.
View the various fact sheets on alternative systems, low pressure distribution, septic systems, and well operation and maintenance.
Information about onsite water and sewer systems in Loudoun County is provided on this page.
A study of onsite sewage tank replacements in Loudoun County, 2000 to 2016
Discover the structural soundness and water tightness requirements of tanks used for on-site sewage systems.