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Alternative Onsite Sewage System Inspection - Lorton, VA

Septic Tank Inspection Services

Owners of alternative onsite septic systems (AOSS) in Lorton,VA, must have a licensed company perform system inspection every year by law or face fines. Flow diversion valves require annual turning and septic tanks need pumping at least every 5 years. If you received a recent letter regarding inspection of your alternative onsite septic system in Fairfax County, VA, contact the trusted professionals at SES in Warrenton to schedule your inspection today.

SES has more licensed operators and installers than any other company in Virginia. We can assist you through the Health Department compliance process and prove your AOSS is being operated by a licensed professional as required by law.

Do you have property with one or more of the following limitations or needs? No problem for SES!

  • Limited Area
  • Steep slopes
  • Shallow, rocky, clayey, wet or sandy soils
  • High groundwater
  • Sites where the current system has failed
  • Coastal Areas where nutrient removal is required
  • Commercial Properties like Restaurants & Schools
  • Subdivision and Communal Systems

Since 1987 our satisfied customers have made SES the premier company in Fairfax County for AOSS operation and inspections, septic-drainfield design, decentralized wastewater systems and stormwater management. Call SES at 866-249-5630 today to schedule your Alternative Onsite Sewage System inspection and leave your AOSS compliance worries in Fairfax County, VA in the reliable care of the SES team.

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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