The Health Department has prepared a series of fact sheets as well as a set of frequently asked questions for Loudoun County residents about the use and care of well and onsite wastewater treatment systems. Also on this page you’ll find links to documents and forms relating to well and septic applications, water and sewage evaluations, and additional applications as well as important information about requirements for non-conventional septic systems.
Subscribe to Loudoun County Onsite mailings: if you would like to receive reminders and alerts from the Loudoun County Health Department, please fill out the form on this page, then click "Subscribe". The submitted information will be used by the Loudoun County Health Department to keep you informed on news and events affecting Loudoun County onsite wastewater disposal regulations, deadlines, and other important information. Please be aware that information you provide may be subject to disclosure under the Virginia Freedom of Information Act. Please allow at least 15 minutes for the confirmation email to arrive.