AWWA M5-2017

Water Utility Management, Third Edition

Building on the previous edition of M5, which documented the fundamentals of managing a utility from managing operations and maintenance to customer service, from communication to emergency planning, and from safety regulation to financial management, the third edition focuses on the key contemporary topics of vital interest to waterûwastewater managers that go beyond basic books on waterûwastewater utility management. This update is designed to be a road map for navigating the array of resources that are already available in print, in electronic media, at conferences, and with peer utilities.

AWWA G100-2017

Water Treatment Plant Operation and Management (PDF)

This standard describes the critical requirements for the effective operation and management of drinking water treatment plants.

AWWA G300-2022

AWWA G300-22 Source Water Protection

This standard describes the essential elements for the effective protection of source waters.

AWWA G480-2020

Water Conservation and Efficiency Program Operation and Management

This standard describes the critical elements of an effective water conservation and efficiency program. It encompasses activities undertaken by a utility within its own operations to improve water use on the supply side upstream of customer meters through distribution system management, and on the demand side downstream of customer meters through customer billing and education practices. A program meeting this standard has the potential to impact all water users.

AWWA G481-2014 (R2020)

Reclaimed Water Program Operation and Management

This standard describes the critical requirements for the effective operation and management of a reclaimed water program. Reclaimed water, for the purposes of this standard, is treated domestic wastewater that is at all times adequately and reliably treated to the level appropriate for the end use.

AWWA G510-2021

AWWA G510-21 Wastewater Treatment Plant Operations and Management

This standard describes the essential or critical requirements for the effective operation and management of a wastewater treatment plant.

AWWA G520-2017

Wastewater Collection System Operation and Management

AWWA Operational Guide J100-2023

Risk & Resilience Management of Water & Wastewater Systems

This operational guide has been written to implement risk assessment and management best practices, as set forth in AWWA Standard J100 Risk and Resilience Management of Water and Wastewater Systems.

AWWA B130-2023

Membrane Bioreactor Systems

The purpose of this standard is to provide a minimum set of requirements for MBR membrane systems used for water reclamation, water recovery, and/or wastewater treatment systems. This standard is intended to assist with the design, procurement, installation, and commissioning of MBR membrane equipment systems.

AWWA B301-2024

Liquid Chlorine

The purpose of this standard is to provide the minimum requirements for liquid chlorine, including physical, chemical, sampling, testing, packaging, and shipping requirements.

ISO 20426:2018

Guidelines for health risk assessment and management for non-potable water reuse

This document aims to serve as technical guidelines for the assessment and management of the health risks associated with pathogens contained in reclaimed water, which are expected to be caused by the use of reclaimed water, and/or by the production, storage, and transportation of reclaimed water.

This document is applicable to the use of reclaimed water made from any source water (i.e. raw sanitary sewage; treated municipal wastewater; industrial wastewater; stormwater potentially influenced by sewage) and for non-potable water reuse.

NOTE The approach described in this document can be applied to chemical contaminant, if applicable.

ISO 20760-2:2017

Water reuse in urban areas - Guidelines for centralized water reuse system - Part 2: Management of a centralized water reuse system

ISO 20760-2:2017 provides guidelines for the management of centralized water reuse systems and water reuse applications in urban areas.

ISO 20760-2:2017 is applicable to practitioners and authorities who intend to implement management concepts, principles and supports on centralized water reuse in a safe, reliable and sustainable manner.

ISO 20760-2:2017 addresses centralized water reuse systems in their entirety and is applicable to any water reclamation system component (e.g. source water, treatment, storage, distribution, operation and maintenance and monitoring).

ISO 20760-2:2017 provides:

- standard terms and definitions;

- principles and methodology of reclaimed water management;

- management issues in each system component of a centralized water reuse system;

- specific aspects for consideration and emergency response.

Monitoring parameters and regulatory values of a centralized water reuse system are out of the scope of this document.

ISO 23500-2:2024

Preparation and quality management of fluids for haemodialysis and related therapies - Part 2: Water treatment equipment for haemodialysis applications and related therapies

This document specifies requirements and recommendations for individual water treatment devices and water treatment systems assembled from one or more of such devices. This document is directed at the individual or company that specifies the complete water treatment system and, the supplier who assembles and installs the system. Since systems can be assembled from a number of individual water treatment devices, the provisions of this document are also directed at the manufacturers of these devices, provided that the manufacturer indicates that the device is intended to be used to supply water for haemodialysis and related therapies. This document is applicable to all devices, piping and fittings between the point at which water is delivered to the water purification system and the point of use of the purified water. Such components include but are not necessarily limited to water purification devices, online water quality monitors (such as conductivity monitors) and piping systems for the distribution of purified water. This document does not apply to — equipment used in the preparation of concentrates from powder or other highly concentrated media at a dialysis facility either for a single patient or multiple patients, — dialysis fluid supply systems that proportion water and concentrates to produce dialysis fluid, — sorbent dialysis fluid regeneration systems that regenerate and recirculate small volumes of the dialysis fluid, — dialysis concentrates, — haemodiafiltration or haemofiltration systems, — systems that process dialysers for multiple uses, and — peritoneal dialysis systems. Requirements for the ongoing monitoring of water purity in terms of chemical and microbiological quality are given in ISO 23500-3.

ISO 23500-3:2024

Preparation and quality management of fluids for haemodialysis and related therapies - Part 3: Water for haemodialysis and related therapies

This document specifies the minimum chemical and microbiological quality requirements, for water used for preparation of dialysis fluids, concentrates, and for the reprocessing of haemodialysers, together with the necessary steps to ensure conformity with the requirements. The document also provides guidance for the ongoing monitoring of the purity of such water in terms of chemical and microbiological quality. This document is applicable to — water used in the preparation of dialysis fluids for haemodialysis, haemodiafiltration and haemofiltration and the reprocessing of haemodialysers, and — water used in the preparation of concentrates. This document does not apply to dialysis fluid regenerating systems. The operation of water treatment equipment and the final mixing of treated water with concentrates to produce dialysis fluid are the sole responsibility of dialysis professionals.

ISO 24511:2024

Activities relating to drinking water and wastewater services - Guidelines for the management of wastewater utilities and for the assessment of wastewater services

This document provides guidelines for the management of wastewater utilities and the assessment of wastewater services. This document is applicable to publicly and privately owned and operated wastewater utilities but does not favour any particular ownership or operational model. NOTE 1 Wastewater is always generated when water is used or consumed. Accordingly, sources of wastewater can be residential, industrial, commercial or institutional. Collected storm water or (melted) snow can also be considered as wastewater, as it often carries contaminants and pathogens picked up from air or ground surfaces on its way to a collection system. In certain circumstances, especially in undeveloped areas, sanitary waste is collected in an undiluted form. This document 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 document: — 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 document: — 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.

ISO 24512:2024

Activities relating to drinking water and wastewater services - Guidelines for the management of drinking water utilities and for the assessment of drinking water services

This document provides guidelines for the management of drinking water utilities and the assessment of drinking water services. This document is applicable to publicly and privately owned and operated water utilities. It does not favour any particular ownership or operating model. This document addresses drinking water systems in their entirety and is applicable to systems at any level of development (e.g. on-site systems, distribution networks, treatment facilities). The following are within the scope of this document: — the definition of a language common to different stakeholders; — the definition of the components of drinking water supply systems; — guidelines for the management of drinking water utilities; — guidelines for objectives, service assessment criteria and related performance indicators, appropriate for the assessment of drinking water services. The following are outside the scope of this document: — target values and thresholds for proposed objectives, service assessments criteria and related performance indicators; — matters relating to the design and construction of drinking water systems; — matters relating to the management structure of drinking water utilities; — matters relating to the regulation of drinking water services, including management and operational activities; — matters relating to regulating the content of contracts or subcontracts; — installations between point of delivery and point of use.

ISO 24516-1:2016

Guidelines for the management of assets of water supply and wastewater systems - Part 1: Drinking water distribution networks

ISO 24516-1:2016 specifies guidelines for technical aspects, tools and good practices for the management of assets of drinking water networks to maintain value from existing assets.

ISO 24516-1:2016 does not apply to the management of assets of waterworks (including catchment and treatment, pumping and storage in the network), which are also physically part of the drinking water system and can influence the management of assets of the pipe network.

ISO 24516-1:2016 focuses on the assets typically owned or operated by drinking water utilities (networked drinking water systems) that are expected to meet customer needs and expectations over longer (multi-generational) periods.

ISO 24516-1:2016 includes examples for good practice approaches on the strategic, tactical and operational levels.

ISO 24516-1:2016 is applicable to all types and sizes of organization and/or utilities operating drinking water systems, and all different roles/functions for the management of assets within a utility (e.g. asset owner/responsible body, asset manager/operator, service provider/operator).

ISO 24516-2:2019

Guidelines for the management of assets of water supply and wastewater systems - Part 2: Waterworks

This document specifies guidelines for technical aspects, tools and good practices for the management of assets of waterworks to maintain value from existing assets. This document includes the following asset types: treatment plants, sludge treatment facilities, pumping stations, reservoirs, tanks and dosing equipment, metering and ancillary infrastructure irrespective of where they are sited, in the waterworks or in the drinking water distribution network.

For further guidance on drinking water distribution networks see ISO 24516-1.

NOTE 1 The management of transmission mains is addressed in ISO 24516-1 irrespective of where these assets are sited in the drinking water system.

This document is focused on the assets typically owned or operated by drinking water utilities (drinking water systems) that in parts are expected to meet users' needs and expectations over longer (multi-generational) 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 organization and/or utilities operating drinking water systems.

NOTE 2 Depending on the size and structure of an organization, the utility can decide to what extent it applies the guidance in this document. 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 a utility (e.g. asset owner/responsible body, asset manager/operator, service provider/operator).

ISO 24516-3:2017

Guidelines for the management of assets of water supply and wastewater systems - Part 3: Wastewater collection networks

ISO 24516-3:2017 specifies guidelines for technical aspects, tools and good practices for the management of assets of wastewater networks to maintain value from existing assets.

ISO 24516-3:2017 does not apply to the management of assets of treatment plants, which are also physically part of the wastewater system and can influence the management of network assets.

NOTE 1 The management of the following individual assets will be covered by ISO 24516‑4: wastewater pumping stations, retention and detention in the network, wastewater treatment plants and sludge treatment facilities.

ISO 24516-3:2017 includes examples of good practice approaches on the strategic, tactical and operational levels.

ISO 24516-3:2017 is applicable to all types and sizes of organizations and/or utilities operating wastewater networks, and all different roles/functions for the management of assets within a utility (e.g. asset owner/responsible body, asset manager/operator, service provider/operator).

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

ISO 24516-4:2019

Guidelines for the management of assets of water supply and wastewater systems - Part 4: Wastewater treatment plants, sludge treatment facilities, pumping stations, retention and detention facilities

This document specifies guidelines for technical aspects, tools and good practices for the management of assets of wastewater treatment plants, sludge treatment facilities, pumping stations, and retention and detention facilities in the wastewater system to maintain the value of existing assets.

NOTE 1 For simplicity in reading this document, reference to wastewater treatment plants includes all the asset types described above.

For further guidance on wastewater networks see ISO 24516-3.

NOTE 2 For simplicity of interpretation of wastewater system assets, the management of pumping stations and retention and detention facilities in the network, excluded from ISO 24516-3, is addressed in this document irrespective of where these assets are sited in the wastewater system.

This document is focused on the assets in wastewater systems typically owned or operated by wastewater utilities that are expected to meet users' needs and expectations over longer, sometimes multi-generational, 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 3 Depending on the size and structure of an organization, the utility can decide to what extent it applies the guidance in this document. In any case, the philosophy of this document remains applicable even to small and medium utilities.

NOTE 4 This includes all different roles/functions for the management of assets within a utility (e.g. asset owner/responsible body, asset manager/operator, service provider/operator).

ISO 24518:2015

Activities relating to drinking water and wastewater services - Crisis management of water utilities

ISO 24518:2015 provides general guidance to water utilities to develop and implement a crisis management system.

ISO 24518:2015 may be applicable to all sizes of public or private water utilities that want to prepare, respond, and recover from a crisis.

ISO 24521:2025

Drinking water, wastewater and stormwater systems and services - Management of on-site domestic wastewater services

This document provides guidance and requirements for the management of on-site domestic wastewater systems and services, using appropriate technologies in their entirety at any level of development. This document supplements and is intended to be used in conjunction with ISO 24511 and ISO 24525. It includes guidance and requirements for the following: — management of on-site domestic wastewater systems and services from the operator’s perspective, including maintenance techniques, training of personnel and risk considerations; — management of on-site domestic wastewater systems (ODWS) from the perspective of owners and users; — design and construction of ODWS; — planning, operation and maintenance, and health and safety issues. This document is applicable to both publicly and privately operated on-site domestic wastewater (black and grey water) services, for one or more dwellings. In rural areas and areas under development, management is sometimes provided by the owners of the premises where wastewater is generated. In this document the term “services” includes “self-services” provided by the owners of the premises. The following are outside the scope of this document: — limits of effluent quality for wastewater discharged into the environment; — analytical methods; — stormwater runoff; — content of contracts or subcontracts.

ISO/TS 24520:2017

Service activities relating to drinking water supply systems and wastewater systems - Crisis management - Good practice for technical aspects

ISO/TS 24520:2017 provides guidance to water utilities on good practice in technical aspects of crisis management.

ISO/TS 24520:2017 is applicable to all water utilities, of whatever size, whether public or private, that wish to review the effectiveness and efficiency of their service activities relating to preparation for, response to and recovery from a crisis.

ANSI/ASCE/EWRI 33-2023

Comprehensive Transboundary Water Quality Management Agreement

Prepared by the Border International Water Quality Standards Committee within the Standards Development Council of the Environmental and Water Resources Institute of ASCE Comprehensive Transboundary Water Quality Management Agreement with Guidelines for Development of a Management Plan, Standards, and Criteria , ANSI/ASCE/EWRI 33-23, serves as a comprehensive framework designed to assist riparian governments in effectively managing shared water resources. This agreement offers practical guidance for national and state governments, as well as other stakeholders involved in establishing water quality standards for sustainable management of transboundary water resources. Drawing inspiration from the successful Delaware River Basin Compact, which has been instrumental in resolving interstate conflicts related to shared water resources, this standard covers a wide array of topics essential to water resources planning, including administration, water quality and allocation, financing, and dispute resolution. Emphasizing the importance of data sharing and cost apportionment among parties, the standard is adaptable for use by all parties sharing a common watercourse. In addition, it provides clear definitions of key terms, delineates roles and processes, and includes appendixes offering guidance on developing water management plans, as well as water quality standards and criteria. ASCE 33-23 is an invaluable reference for environmental engineers, infrastructure engineers, and professionals engaged in water governance, sustainability, geopolitics, and other disciplines with a vested interest in addressing the complexities of transboundary waters. It offers comprehensive insights and practical solutions for effective water resource management across borders.

ANSI/ASHRAE Standard 188-2021

Legionellosis: Risk Management for Building Water Systems

Provides minimum legionellosis risk management requirements for the design, construction, commissioning, operation, maintenance, repair, replacement, and expansion of new and existing buildings and their associated (potable and nonpotable) water systems and components. Applies to human-occupied commercial, institutional, multiunit residential, and industrial buildings. This standard does not include single-family residential buildings. Only where specifically noted in this standard shall certain building water systems or parts of building water systems be exempt. standard is intended for use by owners and managers of human-occupied buildings, excluding single-family residential buildings. This standard is also intended for those involved in the design, construction, installation, commissioning, operation, maintenance, and service of centralized building water systems and components. Dual units of measurement.

NSF/ANSI 245-2021

Residential Wastewater Treatment Systems - Nitrogen Reduction

This wastewater standard contains minimum requirements for residential wastewater treatment systems having rated treatment capacities of 1514 L/d (400 gal/d) to 5678 L/d (1500 gal/d) that are designed to provide reduction of nitrogen in residential wastewater. Management methods for the treated effluent discharged from these systems are not addressed by this Standard. A system, in the same configuration, must either be demonstrated to have met the Class I requirements of NSF/ANSI 40 or must meet the Class I requirements of NSF/ANSI 40 during concurrent testing for nutrient removal.