Onsite Consortium

The Consortium of Institutes for Decentralized Wastewater Treatment, often referred to as "The Onsite Consortium", is a group of Educational Institutions cooperating on decentralized wastewater training and research efforts. The Consortium also includes people from professional associations, citizens groups, regulatory agencies and private industry.

As funding for centralized wastewater collection and treatment has diminished there has been a dramatic shift in interest among professionals and the public towards decentralized wastewater technologies which can be environmentally compatible and cost-effective.

Consortium affiliates cooperate to:

  • Conduct, coordinate, and standarize education, training, and research,  
  • Develop, standardize, and share education and training materials,
  • Encourage interdisciplinary collaboration among engineering and the sciences,
  • Advance commercialization of new approaches and tools for wastewater treatment, and
  • Promote multi-sector collaboration and communication among Consortium institutions, professionals, and the public.

Mark Your Calendar!!

Installer Train the Trainer Event

March 13-14, 2013 in Nashville, Tennessee

Download the registration form.

Decentralized Systems Performance and Cost Project


Small community decision-makers must understand the full spectrum of wastewater management options and long-term implications of their use.  These officials are charged with the responsibility of maximizing the return on the taxpayer’s investment.  In order to make informed decisions, these officials need basic information about the performance, reliability, and cost (both the capital and life-cycle costs) of the various options. Members of the project team have completed development of two separate components for use by small community leaders and planners. A dynamic spreadsheet and a full series of Fact Sheets are now available for use by small communities. These are available for download at the Water Environment Research Foundation website at this URL:

Installation of Wastewater Treatment Systems manual NOW AVAILABLE.

The Installer project was completed in November 2009.  The materials produced include a manual with Installation and startup Checklists.  The manual, entitled Installation of Wastewater Treatment Systems is now available for purchase by CIDWT members as well by the general public.  The Installation Checklists describe the key items to be recorded during a maintenance visit are available online. Nearly 240 Diagrams created for the manual are also available. Individuals and entities who wish to use the slide presentations for training will have the opportunity to attend Train-the-Trainer events.  These will be posted in the Calendar.

CIDWT Installer Training and Train-the-Trainer Program Conducted in St. Louis, Missouri.

The first Consortium of Institutes for Decentralized Wastewater Treatment (CIDWT) Train-the-Trainer Academy introducing the new installer training materials was conducted on August 9-12, 2009.  Missouri SmallFlows Organization (MSO) served as the local host for the training event and worked with the St. Louis Plumbing Industry Council to secure the classroom.  This installer train-the-trainer event was conducted following the completion of the Installer Training Program project. 

Eighteen people representing twelve training entities in eleven states attended the Academy.  The attendees currently help deliver training courses offered in Florida, Iowa, Kansas, Missouri, Nebraska, New Mexico, Oklahoma, Oregon, Pennsylvania, Utah, and Virginia.  The instructors and writing team are affiliated with training programs in Minnesota, Missouri, North Carolina, Rhode Island, Tennessee and Texas.  Therefore, qualified instructors will now work with training entities located in eighteen states to deliver the installer training materials.

Read the Press Release

List of Qualified Trainers


Decentralized Wastewater Treatment Glossary Second Edition

During the two years since it was released, the CIDWT Decentralized Wastewater Treatment Glossary has been revised and expanded. Additionally, the Second Edition includes terms, definitions and diagrams added during the development of the National Installer Training Program Project. The Second Edition is available for download in PDF format.

Single column PDF with diagrams (139 pages)

New! Two-column PDF with diagrams (91 pages)


CIDWT Memorandum of Understanding

The number of participants and the awareness of College and University administrators continues to increase. If your institution is interested in participating in the Consortium an MOU is available by clicking HERE. For more information, interested parties can either contact John Buchanan or Nancy Deal

The 2008-2009 Consortium Executive Board membership includes:

     John Buchanan - (Chair) University of Tennessee
     Kitt Farrell-Poe (Past Chair) University of Arizona
     Bruce Fox - (Training Center/Program/Association Representative) Allstate Septic Systems LLP
     George Loomis- (Practitioner/Training Center Chair) University of Rhode Island 
     Randy Miles (University Curriculum Committee Chair) University of Missouri
     David Lindbo - (Research Committee Chair) North Carolina State University
     David Gustafson - (At Large Delegate) University of Minnesota

EPA Memorandum of Understanding with CIDWT

The purpose of the MOU is to formalize the on-going cooperative relationship between the EPA and the Signatory Organizations in order to effectively address issues pertaining to decentralized wastewater treatment systems.  The MOU is intended to facilitate cooperation, collaboration, consultation, coordination, and effective communication between the EPA and the Signatory Organizations. For more details on the EPA MOU or the MOU partners, please Click Here.

National Decentralized Water Resources Capacity Development Project (NDWRCDP)

The NDWRCDP, a cooperative effort funded by the U.S. Environmental Protection Agency (USEPA) which supports research and development, is requesting research proposals. For more information Click Here.

The original development of this web site was supported by the National Decentralized Water Resources Capacity Development Project  with funding provided by the U.S. Environmental Protection Agency through a Cooperative Agreement (EPA No. CR827881-01-0) with Washington University in St. Louis.

Subsequent support was provided through a Cooperative Agreement (WPA No X-830851-01-0) with the Water Environment Research Foundation (WERF) in Alexandria, VA.


Copyright © 2009 CIDWT

This Website was designed by N Deal & Justin Blythe