What are the requirements pertaining to onsite well and septic?
Onsite well and septic systems continue to be permitted and must be approved by the Loudoun County Health Department. Such systems must observe the setback requirements from Karst/Sensitive Environmental Features. Proposed subdivisions of fifteen (15) or more lots, however, must be served by communal wells and communal wastewater systems, unless all of the lots in the subdivision are a minimum of ten acres in size. Wells approved by the County Health Department prior to February 17, 2010, by issuance of a well construction permit, and drainfields approved by the Loudoun County Health Department prior to February 17, 2010 by issuance of (i) a sewage disposal system construction permit that remains valid; or (ii) a County Health Department Certification Letter; or (iii) a written approval from the County Health Department to satisfy subdivision submission or review requirements, may still be constructed/installed after February 17, 2010, in accord with such approvals.