scope:

This International Standard provides guidelines for the management of wastewater utilities and for the assessment of wastewater services. This International Standard is applicable to publicly and privately owned and operated wastewater utilities, but does not favour any particular ownership or operational model. This International Standard addresses wastewater systems in their entirety and is applicable to systems at any level of development (e.g. pit latrines, on-site systems, networks, treatment facilities). The following are within the scope of this International Standard: - the definition of a language common to different stakeholders; - objectives for the wastewater utility; - guidelines for the management of wastewater utilities; - service assessment criteria and related examples of performance indicators, all without setting any target values or thresholds. The following are outside the scope of this International Standard: - methods of design and construction of wastewater systems; - regulation of the management structure and the methodology of wastewater service activities of operation and management; - regulation of the content of contracts or subcontracts; - topics related to the systems inside buildings, between the point-of-discharge and the point-of-collection.