British Standards Institution

Sector: Construction

Overview: Under the direction of the Standards Policy and Strategy Committee, is responsible for the UK input to ISO/TC 224 Service activities relating to drinking water supply systems and wastewater systems

Committee standards activity

In Progress (25)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
Reserved NP 24592,	Smart water management â Part 2 data management guidelines Categories: Information management \| Standardization. General rules \| Environment \| Water quality \| Water quality. General \| Water. Drinking \| Water. Sewage Proposal begins : 2020-09-23	Proposal
PD ISO/TR 25371	Smart water management - Examples and best practices Categories: Unclassified documents Drafting begins : 2025-10-23	Drafting
PD ISO/TR 24593	Establishment of a master plan for water supply Categories: Unclassified documents Comment resolution begins : 2025-05-12	Comment resolution
PD ISO/TR 24525	PD ISO/TR 24525 Service activities relating to drinking water supply systems and wastewater systems - Crisis management - Examples of practiced crisis management Categories: Unclassified documents Proposal begins :	Proposal
NP Reserved 24591,	Smart water management Part 1 General guidelines and governance Categories: Information management \| Standardization. General rules \| Environment \| Wastes \| Water quality \| Water. Drinking \| Water. Sewage Proposal begins : 2020-09-23	Proposal
ISO/TC 282/SC 2 - N 205 - ISO/NP 24575	Guidelines for Cost Analysis in Planning of Decentralized Wastewater Treatment in Urban Areas Categories: Quantities and units \| Standardization. General rules \| Measurement and Science \| Environment \| Wastes \| Wastes. Liquid \| Waste. Equipment and installations. Disposal and treatment. \| Recycling \| Water quality Proposal begins : 2019-10-08	Proposal
ISO/TC 224 N2097 - ISO/NP 7819	Guidelines for the planning and implementation of water and wastewater systems' infrastructure hardening. Categories: Information management \| Standardization. General rules \| Environment \| Water quality \| Water. Sewage \| Construction \| Construction materials and building \| Installations in buildings \| Water supply Proposal begins : 2021-04-27	Proposal
ISO/TC 224 N2096 - ISO/NP 7818	Guidelines on alternative water supply service (AWS) provision during a crisis for essential services, key establishments and facilities, and farms (animals). Categories: Information management \| Standardization. General rules \| Environment \| Water quality \| Water. Drinking \| Water. Sewage \| Construction \| Construction materials and building \| Installations in buildings \| Water supply Proposal begins : 2021-04-27	Proposal
ISO/TC 224 ISO/NP TR	Service activities relating to drinking water supply, wastewater and stormwater systems – Water loss management good practice Categories: Information management \| Standardization. General rules \| Environment \| Water quality \| Water. Drinking \| Water. Sewage Proposal begins : 2021-09-09	Proposal
ISO/NP TS 26238	Guidelines for energy efficiency management of urban wastewater treatment facilities Categories: Information management \| Standardization. General rules Proposal begins : 2025-09-29	Proposal

Published (34)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PD ISO/TS 24541:2020	Service activities relating to drinking water supply, wastewater and stormwater systems. Guidelines for the implementation of continuous monitoring systems for drinking water quality and operational parameters in drinking water distribution networks Categories: Services. Consumers \| Water quality. General \| Water. Drinking Published standard begins : 2020-12-07	Published standard
PD ISO/TS 24522:2019	Event detection process: Guidelines for water and wastewater utilities Categories: Services. Consumers \| Water. Drinking \| Water. Sewage Published standard begins : 2019-02-28	Published standard
PD ISO/TS 24520:2017	Service activities relating to drinking water supply systems and wastewater systems. Crisis management. Good practice for technical aspects Categories: Services. Consumers \| Water. Drinking \| Water. Sewage \| Water supply Published standard begins : 2017-09-25	Published standard
PD ISO/TS 24519:2022	Service activities relating to drinking water supply, wastewater and stormwater systems. Water and wastewater services for temporary settlements for displaced persons Categories: Services. Consumers \| Company organization and management. General \| Water quality. General Published standard begins : 2022-09-06	Published standard
PD ISO/TR 24589-2:2025	Examples of good practice for the management of assets of water supply and wastewater systems. Wastewater systems Categories: Water quality. General \| Water. Sewage Published standard begins : 2025-06-04	Published standard
PD ISO/TR 24589-1:2024	Examples of good practice for the management of assets of water supply and wastewater systems. Water supply Categories: Water quality. General Published standard begins : 2024-12-18	Published standard
PD ISO/TR 24539:2021	Service activities relating to drinking water supply, wastewater and stormwater systems. Examples of good practices for stormwater management Categories: Services. Consumers \| Water quality. General \| External water conveyance systems Published standard begins : 2021-05-07	Published standard
PD ISO/TR 24524:2019	Service activities relating to drinking water supply, wastewater and stormwater systems. Hydraulic, mechanical and environmental conditions in wastewater transport systems Categories: Services. Consumers \| Water. Sewage \| Home economics. General Published standard begins : 2019-02-27	Published standard
PD ISO/TR 24514:2018	Activities relating to drinking water and wastewater services. Examples of the use of performance indicators using ISO 24510, ISO 24511 and ISO 24512 and related methodologies Categories: Services. Consumers \| Water. Drinking \| Water. Sewage Published standard begins : 2018-05-31	Published standard
BS ISO 46001:2019+A1:2024	Water efficiency management systems. Requirements with guidance for use Categories: \| Water quality. General Published standard begins : 2024-03-11	Published standard

Withdrawn (6)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS ISO 46001:2019	Water efficiency management systems. Requirements with guidance for use Categories: \| Water quality. General Withdrawn begins : 2024-03-11	Withdrawn
BS ISO 24521:2016	Activities relating to drinking water and wastewater services. Guidelines for the management of basic on-site domestic wastewater services Categories: Services. Consumers \| Water. Sewage Withdrawn begins : 2025-05-30	Withdrawn
BS ISO 24516-1:2016	Guidelines for the management of assets of water supply and wastewater systems. Drinking water distribution networks Categories: Water quality. General \| Water. Drinking Withdrawn begins : 2025-09-18	Withdrawn
BS ISO 24512:2007	Activities relating to drinking water and wastewater services. Guidelines for the management of drinking water utilities and for the assessment of drinking water services Categories: Water. Drinking \| External water conveyance systems Withdrawn begins : 2024-03-08	Withdrawn
BS ISO 24511:2007	Activities relating to drinking water and wastewater services. Guidelines for the management of wastewater utilities and for the assessment of wastewater services Categories: Water. Sewage \| External sewage systems Withdrawn begins : 2024-06-18	Withdrawn
BS ISO 24510:2007	Activities relating to drinking water and wastewater services. Guidelines for the assessment and for the improvement of the service to users Categories: Services. Consumers \| Water. Drinking \| Water. Sewage \| Civil engineering. General Withdrawn begins : 2024-01-30	Withdrawn

Standards Development

CB/503 - Drinking water and wastewater service levels

Committee standards activity