Biological Stability in Drinking Water Distribution Systems

PAOTM (Post Graduate Education in Engineering and Management) New Insight in Water Treatment and Distribution

Target Audience

People working in the water sector and involved with drinking water treatment and distribution; people with an interest in the fields of drinking water microbiology, microbial ecology, and health-related drinking water ecology; the employees of drinking water companies; PhD students, post-docs, researchers, and consultants who are involved in drinking water treatment and supply.


Biological stability of drinking water is critical to provide consumers with microbiologically safe and pleasant to drink water. This is particularly relevant in drinking water distribution systems where water is delivered without maintaining a disinfectant residual, like in the Netherlands.

This course will cover different aspects of drinking water quality and safety, from treatment to distribution, until the water reaches the customer’s tap. Methods applied to evaluate biological stability will be described and their application addressed with examples from practice. The lecturers will cover the content from both theory and practice by presenting state-of-the-art technology that is being used for the treatment of drinking water and best practices from the field used to maintain drinking water distribution. The course is a mix of theory and practice, as well as exercises based on real life situations from Dutch drinking water distribution networks.

The course will be held in Amersfoort, The Netherlands and can also be followed online through MS Teams. IWA members will get a discount of 10% off the normal fee, and participants from low-income countries (please see country classification here) will get a further discount (please consult with the organiser). In addition, by attending this course, PhD students can gain 2 GS credits (2 graduate school credits = 16 hours of workload).

Learning Objectives

In this course, participants will:

  • Get an insight into the monitoring methods for biological stability.
  • Learn about the effects of water source and treatment on the quality of drinking water.
  • Gain an insight into the factors influencing the biological stability within distribution networks.
  • Learn about the microenvironment of distribution networks and premises plumbing.