Advanced Enviro-Septic® Now Approved in the State of Virginia!

We are proud to introduce the  Advanced Enviro-Septic® Treatment System (“AES”) in Virginia. Advanced Enviro-Septic® is the next generation of our effective and reliable Enviro-Septic® technology; it has received Class I Certification under NSF International/ANSI’s Standard 40 for Wastewater Treatment Devices. The AES product is also approved for non-NSF Certified installations in Virginia as Level Two (TL-2), Alternative onsite system (AOSS) product. The reduced bed size of the Advanced Enviro-Septic® will allow it to be up to 75% smaller than traditional stone trench systems.

Certification Classes

We require individuals who wish to design or install an  Advanced Enviro-Septic® be certified by attending the Advanced Enviro-Septic® Design and Installation Certification Class. The class offers various design and installation configurations, troubleshooting techniques and tricks of the trade. To view the class schedule and certification options click on the ‘Training and Certification’ tab above.

Manuals and Approvals

Advanced Enviro-Septic® has been approved for use throughout the State of Virginia.

Virginia Design and Installation Manual

Forms and Worksheets

Virginia Designers’ Worksheet

System Sampling:

Virginia law requires that all AOSS systems must be inspected after the first 180 days of use and every five years after that.

Norfolk, VA

Woodbridge, VA

Fredericksburg, VA

Sorry - none currently listed

Sorry - none currently listed

Sorry - none currently listed

In Virginia, certification is required for all designers and installers. The classes are a great way to learn more about our product, even if you are not seeking certification. We strongly recommend regulators involved in the review and inspection of Advanced Enviro-Septic® systems take the certification training.

As part of certification, an assessment test is required. This should be taken only after viewing the class videos and reading the Virginia Design and Installation Manual. The test is open book and is not timed. A passing score of 70% is required for certification.


4 CEUs now available

Required Reading

Virginia Advanced Enviro-Septic Design & Installation Manual

Online Certification Classes

(A high speed internet connection is required for online classes. If you don’t have access to high speed, contact us and we’ll send you a DVD. See DVD certification classes section below.)

Virginia Online Certification Training

DVD Certification Classes

If you do not have a high speed internet connection, we can mail you the presentation in DVD format.

Please complete the following request form: Virginia DVD Request

Online Certification Test

After viewing the reading materials and training videos, follow the link below to the assessment test. We highly recommend that you download and print the Required Reading materials for the open book test which is not timed. If you receive a score of 70% or better, you will be emailed a copy of your Presby Certification Certificate, provided you give correct and accurate contact information to ensure proper certification. Please allow ten business days to process your test and deliver your certification.

Virginia Online Certification Test

The assessment test is only offered online. If you have special needs contact our Training Coordinator at 800-473-5298 x26.

Other Videos of Interest:

Coming soon!

Virginia Onsite Wastewater Recycling Association