Serving Northern Virgina / Washington DC Metro Area Customers Since 1987

Ground Water Supply Systems

Communal Water Systems

SES is experienced in the preliminary design, final design and construction inspection of water supply systems from 1,000 to 100,000 gallons per day. Water systems can be designed for residential, agricultural or commercial uses to serve transient and permanent populations. Wells for churches, restaurants and convenience stores require systems approved by the State Health Department and include ongoing sampling and monitoring.

Groundwater systems can be designed for Fire Suppression and may include treatment systems, water storage tanks and water booster stations.

SES Company


  • Virginia Onsite Wastewater Recycling Association
  • National Onsite Wastewater Recycling Association
  • Water Environment Federation
  • Virginia Association of Counties
  • Northern Virginia Building Industry Association
  • Design Build Institute of America
  • Better Business Bureau
  • Dulles Area Realtors Association
  • Prince William Regional Chamber of Commerce

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Responsible Management Entity

SES is one of only three businesses to be licensed as a Responsible Management Entity. Loudoun County Virginia was the first in the Nation to establish requirements for an RME based on EPA recommendations. SES manages several communities required to have an RME.

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  • Licensed Conventional & Alternative Onsite Soil Evaluators (AOSE)
  • Licensed Conventional and Alternative Onsite Sewage System Operators
  • Licensed Conventional and Alternative Onsite Sewage System Installers
  • NSF Certified Septic System Inspectors
  • Virginia Class A Contractors License
  • Environmental, Monitoring Well and SDS Endorsements
  • Licensed Sewage Handler
  • Licensed Wastewater Treatment Plant Operators
  • Licensed Water System Operators

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