Graphics Database

The graphics posted here are available for general use with appropriate attribution to the source. Citations are provided at the top of each of three groups of graphics:

Installer Training Program Diagrams

Training Center Signs

Graphics from the Practitioner Curriculum Technology Overview Module









The graphics in this section were developed in conjunction with the Installer Training Program. Use of the graphics is welcomed with appropriate citation as follows:

CIDWT. 2009. Installation of Wastewater Treatment Systems. Consortium of Institutes for Decentralized Wastewater Treatment. Iowa State University, Midwest Plan Service. Ames, IA.


Chapter 1: Overview

Chapter 2: Business Models and Industry Integrity

  • There are no graphics included in Chapter 2.

Chapter 3: Safety

Chapter 4: Soil and Site Concepts for Installers

Chapter 5: Construction Materials and Techniques

Chapter 6: Planning

Chapter 7: Distribution

Chapter 8: Watertight Piping and Tanks

Chapter 9: Dosing Systems and Controls

Chapter 10: Advanced Treatment

Chapter 11: Soil Treatment Areas












Lenning, D., T. Banathy, D. Gustafson, B.J. Lesikar, S. Wecker, D. Wright. 2005. Technology Overview Module. in (D.L. Lindbo and N.E. Deal eds.) Model Decentralized Wastewater Practitioner Curriculum. National Decentralized Water Resources Capacity Development Project. North Carolina State University, Raleigh, NC.














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