Septic Systems

Septic Systems

In 2016 the Loudoun County Health Department estimated that there are approximately 14,800 conventional and non-conventional sewage disposal systems installed in Loudoun County.

Maintain & Monitor Your Septic System

Failure to properly maintain your sewage disposal system can lead to premature system failure, poor system performance, backups in the home, reduced system life, well contamination, ground/surface water contamination and excess nitrogen discharge.

Septic Systems & Nitrogen

Sewage disposal systems can contribute to excess nitrogen found in local waters and the Chesapeake Bay. Excessive nitrogen can impact water quality by creating algae blooms that decrease oxygen levels important to aquatic life. Below are some examples of how homeowners can help reduce nitrogen impact from septic systems:

  • Pump Out Your Septic Tanks
    Septic systems achieve nutrient reductions through several types of management practices, including frequent maintenance and septic tank pumping of scum and solids. On average, septic tanks need to be pumped once every three to five years to maintain effectiveness. In Loudoun County septic tanks are required to be pumped out every five years per Chapter 1066 of the Loudoun County Codified Ordinances.
  • Install Septic Denitrification System
    There are several alternative on-site sewage systems (AOSS) that have additional nitrogen removal capabilities, able to provide treatment of nitrogen through processes that encourage denitrification of the wastewater. Since Loudoun County is located in the Chesapeake Bay watershed, Virginia's Alternative On-site Sewage System Regulations now require all AOSS's installed in the county to meet nitrogen reduction standards.
  • Connecting to Public Sewer
    Convert to "public" sewer when it becomes available. Connecting to public sewer helps by allowing the sewage to be treated at a more advanced wastewater treatment facility.