ISO DIS 24516-4

Description / Abstract: This document specifies guidelines for technical aspects, tools and good practices for the management of assets of wastewater treatment plants to maintain value from existing assets.

Excluded is the management of assets in wastewater collection networks which are part of the wastewater system and can also influence the management of assets of wastewater treatment plants (including pumping and sludge treatment). For further guidance on wastewater collection networks see ISO 24516-3. However, ISO 24516-3 excludes retention and detention tanks and pumping in the network.

NOTE 1 For simplicity of interpretation of wastewater system assets, the management of pumping stations and retention and detention tanks in the network, excluded from ISO 24516-1, is addressed in this document irrespective of where these assets are sited in the wastewater system.

This document is focused on the assets typically owned or operated by wastewater utilities (networked wastewater systems) that are expected to meet users’ needs and expectations over longer (multigenerational) periods. This document includes examples of good practice approaches on the strategic, tactical and operational levels.

This document is applicable to all types and sizes of organizations and/or utilities operating wastewater systems.

NOTE 2 Depending on the size and structure of an organization the utility can decide to what extend it applies the guidance in this document, but in any case, the philosophy of this document remains applicable even to small and medium utilities.

NOTE 3 This includes all different roles/functions for the management of assets within an utility (e. g. asset owner/ responsible body, asset manager/operator, service provider/operator).