Standards Development

Scope

This proposed report deals with the different corrective activities related to water loss reduction and ongoing management, while applying the IWA WLSG methods as introduced in ISO 24528, as well as implementation of solutions for:

- Water loss status analysis: Calculation NRW components and performance indicators ,

- Analysis of water loss reduction targets: meeting current targets and establishing shortand long-term targets,

- Analysis of effectiveness of the corrective activities including methods and technologies,

- Manpower organization and management,

- Financial analysis of NRW.

Purpose

Drinking water shortage is a global issue which becomes more and more crucial with climate change. In that, water loss is a worldwide severe problem faced by many water utilities. Its management can reduce water waste, energy and carbon print, as well as use of chemicals.

As of now, there is not enough practical reference material on successful management of water loss projects. While ISO 24528:2021 Service activities relating to drinking water supply, wastewater and stormwater systems – Guideline for a water loss investigation of drinking water distribution networks has laid down the principles for the initial steps of water loss management, the proposed TR compliments it by providing best practice for the ongoing management of water loss.

An international standard of water loss management can be difficult to develop, as different methodologies and technologies exist, as required by various regulations and local conditions. Still, a comparison and analysis of water loss management methods, technologies, organization structures and project management can facilitate water loss management implementation by water utilities, organizations, technology providers and consultancies.

One of the areas the proposed TR intends to explore is water loss management in areas where water supply is intermittent. In such areas, proper water loss management can help create 24/7 water supply conditions, prevent drinking water contamination and improve public health.