A New Solution for Onsite Septic Systems

We are proud to introduce the  Advanced Enviro-Septic® Treatment System (“AES”) in Wyoming. Advanced Enviro-Septic® is the next generation of our effective and reliable Enviro-Septic® technology; Presby systems have received Class I Certification under NSF International/ANSI’s Standard 40 for Wastewater Treatment Devices.

Wyoming DEQ has approved AES product for the following applications:

  • Wyoming allows Presby system designs without an engineer for 5 bedrooms or less using the AES Application Package
  • Public and private onsite treatment with 30” or greater separation from AES pipe bottom to Seasonal High Ground Water.
  • The reduced bed size of the Advanced Enviro-Septic® will allow it to be up to 50% smaller than traditional stone trench systems.

Certification Required

We require individuals who wish to design or install an  Advanced Enviro-Septic® or Enviro-Septic® System be certified by attending the 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.


Wyoming Design and Installation Manual

PEI-Application 5 bedrooms or less 6-6-18

Sorry - none currently listed

Sorry - none currently listed

In Wyoming, 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 Wyoming Design and Installation Manual. The test is open book and is not timed. A passing score of 70% is required for certification.

CEUs May Apply

Coming soon!

Required Reading

Wyoming Advanced Enviro-Septic® Design and 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.)

Wyoming 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 (only viewable on a computer running Windows).

Please complete the following request form: Wyoming 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.

Wyoming 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!