Webinar instructions will be emailed before the date of the webinar.
Please log into the webinar 15 – 30 minutes before start time.

Monday, August 21, 2023
8:00 am – 4:00 pm CDT

Presented by John R. Buchanan, PhD, PE

Overview of Individual Onsite and Decentralized Wastewater Management Systems 

  • Discussion of individual onsite wastewater treatment systems  
  • Introduction to decentralized cluster and small community wastewater management systems 

 Regulation of Individual Onsite and Decentralized Wastewater Treatment Systems 

  • Chapter 0400-48-01 Regulations to Govern Subsurface Sewage Disposal Systems in Tennessee 
  • Local jurisdictions that have authority to regulate onsite systems in Tennessee 
  • Decentralized wastewater management system regulations 
  • Chapters 15 and 17 of the Design Criteria for Sewage Works 
  • Permit requirements and procedures 

 Site Evaluations and Performance Standards 

  • System boundaries and loadings 
  • Analyzing the receiving environment 
  • Evaluating landscape and soil types 
  • Nitrogen and pathogen removal 
  • Treatment/removal of phosphorus and other pollutants 
  • Mapping the site 

 Individual Onsite Treatment System Selection and Design 

  • Pretreatment using septic tanks 
    • Advanced pretreatment with aerobic devices 
    • Aerobic treatment systems 
    • Peat biofilter wastewater treatment systems 
    • Trickling filters 
    • Sequencing batch reactors 
    • Enhanced nutrient removal
  • Final treatment and soil dispersal systems 

Decentralized Cluster System Wastewater Treatment and Dispersal Technologies 

  • Recirculating media filters 
  • Drip dispersal wastewater disposal systems 

Management Program for Onsite Wastewater Treatment Systems 

  • Review of EPA’s five levels of decentralized wastewater management 
  • Operation & maintenance service providers 
  • Inspection procedures 

Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection: Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


Professional Engineers
6.5 PDHs

6.5 HSW CE Hours

International Code Council
.65 CEUs (Building)

Continuing Education Credit Information

This webinar is open to the public and is designed to qualify for 6.5 PDHs for professional engineers and 6.5 HSW continuing education hours for licensed architects in Tennessee. The Tennessee Board of Architectural and Engineering Examiners does not pre-approve continuing education courses.

Professionals seeking continuing education credit in other states may be able to claim the hours earned at this webinar. Refer to specific state rules to determine eligibility.

The American Institute of Architects Continuing Education System has approved this course for 6.5 HSW LUs (Sponsor No. J885). Only full participation is reportable to the AIA/CES.

The International Code Council has approved this event for .65 CEUs in the specialty area of Building (Preferred Provider No. 1232).

Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).

On-Demand Credits

The following pre-approvals may be available for the on-demand format upon request:

6.5 HSW LUs (AIA)


John Buchanan, PhD, P.E.

Associate Professor and Extension Specialist at the University of Tennessee

John Buchanan, PhD, PE is an associate professor in the Department of Biosystems Engineering and Soil Science Department at the University of Tennessee where he is also the director of the Construction Science and Management Program. His experience includes teaching, research, and extension work in the areas of soil erosion prevention, sediment control, water quality, and agricultural waste management. He is past president of the Tennessee chapter of the Soil and Water Conservation Society and has served on the board of the Tennessee Onsite Wastewater Association (TOWA). Dr. Buchanan is active as a speaker at seminars, workshops, and conferences both regionally and nationally on the subject of onsite wastewater and is a registered professional engineer in Tennessee. 

AIA Info

AIA Provider Statement:

HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES ( or (800) AIA 3837, Option 3).

This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

Course Title: Tennessee Decentralized Wastewater Treatment Systems

Delivery Method: Live Online

Course Description: This course focuses on the regulations, design, performance, selection, technologies and management of decentralized wastewater treatment systems. The course explains the necessary site evaluations, performance standards, and the specific technologies and systems used in decentralized wastewater systems. The course will also reference applicable regulations in Tennessee.

Learning Objectives:

Learning Objective 1:
Learners will be able to evaluate the site of a decentralized wastewater treatment system by analyzing the receiving environment, evaluating soil types, and mapping.

Learning Objective 2:
Learners will be able to evaluate different types of devices and systems used for pre-treatment, including aerobic devices, peat biofilter systems, trickling filters and enhanced nutrient removal.

Learning Objective 3:
Learners will be able to evaluate decentralized cluster system treatment and dispersal technologies, including recirculating media filters and drip dispersal disposal systems.

Learning Objective 4:
Learners will be able to review the EPA’s five levels of decentralized wastewater management, discuss operation and maintenance of wastewater systems, and explain proper inspection procedures.

LUs: 6.5                                                                                              LU Type: LU|HSWs.

Prerequisites: None

Advance Preparation: None

Program Level: Intermediate

Course Expiration Date: 06/09/2026

Complaint Resolution Policy:

Complaints regarding this course can be emailed to or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.

Streamable MP4/PDF Price: $329.00

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