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Water/Wastewater Agency Response Network

A Water and Wastewater Agency Response Network is a network of utilities helping other utilities to respond to and recover from emergencies. The purpose of a WARN is to provide a method whereby water/wastewater utilities that have sustained or anticipate damages from natural or human-caused incidents can provide and receive emergency aid and assistance in the form of personnel, equipment, materials and other associated services as necessary from other water/wastewater utilities.

Emergency Preparedness

AWWA believes that emergency preparedness and security are of paramount importance to the reliable delivery of safe drinking water, the protection of public health, and the safety of the professionals responsible for water systems serving our communities.

International

International Membership

Warning of Iranian cyber actors

On October 16, the Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI) and other cybersecurity organizations issued an advisory called, “Iranian Cyber Actors’ Brute Force and Credential Access Activity Compromises Critical Infrastructure Organizations.” The advisory warns “network defenders of Iranian cyber actors’ use of brute force and other techniques to compromise organizations […]

International Standard Units for Water and Wastewater Processes

International Standard Units (abbreviated SI from the French language phrase Système International d'Unités) is the modern form of the metric system. SI is the language of professional engineers, operators and technicians. This manual provides SI units and other internationally accepted units of expression for water and wastewater engineering and operations.

Water Accounting: International Approaches to Policy and Decision-Making

International experts respond to the question: what role can different reporting approaches, generally called water accounting systems, play in improving the management of water resources?

C110-77: American National Standard for Ductile-Iron and Gray-Iron Fittings, 3 In. Through 48 In., for Water and Other Liquids (PDF)

This standard is a revision of ANSI A21.10-1971. The revised edition was ANSI approved in April 1977. Also provided is a brief history of the standard, the latest revisions and major revisions, options and special service requirements.

C110/A21.10-82: American National Standard for Ductile-Iron and Gray-Iron Fittings, 3 In. Through 48 In., for Water and Other Liquids (PDF)

This standard covers 3- to 48-in. gray iron and/or ductile iron fittings to be used with gray iron or ductile iron pipe for water and other liquids. Specifications for fittings with mechanical and flanged joints are listed in tables at the end of the standard. The standard may also be used for fittings with push-on joints or such other joints as may be agreed upon at time of purchase. For the 3-24 in. size range, ductile iron mechanical joint fittings are rated for 350 psi (2.41 MPa) working pressure; ductile iron flange-joint fittings are rated for 250 psi (1.72 MPa) working pressure; and gray cast iron fittings having all types of joints covered by the standard are rated for 150 or 250 psi (1.03 or 1.72 MPa) working pressures, as shown in tables. For the 30-48 in. size range, fittings of all types of joints covered by this standard are shown in the tables as gray iron and/or ductile iron for rated working pressures of 150 or 250 psi (1.03 or 1.72 MPa), as shown in tables.

C151/A21.51-86: American National Standard for Ductile-Iron Pipe, Centrifugally Cast In Metal Molds or Sand-Lined Molds, for Water or Other Liquids (PDF)

This standard covers 3-in. through 54-in. ductile-iron pipe, centrifugally cast in metal molds or sand-lined molds, for water or other liquids, with push-on joints or mechanical joints.

C110/A21.10-87: American National Standard for Ductile-Iron and Gray-Iron Fittings, 3 In. Through 48 In., for Water and Other Liquids (PDF)

This standard covers 3- to 48-inch gray-iron and/or ductile-iron fittings to be used with ductile-iron pipe for water and other liquids.

C151/A21.51-91: American National Standard for Ductile-Iron Pipe, Centrifugally Cast, for Water or Other Liquids (PDF)

This standard covers 3-in. through 64-in. ductile-iron pipe, centrifugally cast, for water or other liquids, with push-on joints or mechanical joints. Requirements for pipe covered by this standard are discussed in the text and are shown in tables and figures.

C110/A21.10-93: American National Standard for Ductile-Iron and Gray-Iron Fittings, 3 In. Through 48 In. (76 mm Through 1,219 mm), for Water and Other Liquids (PDF)

This standard covers 3- to 48-in. (75- to 1200-mm) gray-iron and/or ductile-iron fittings to be used with ductile-iron pipe for water and other liquids. Requirements for fittings with mechanical joints and flanged joints are listed in Tables 10.1-10.20 at the end of this standard.

C110/A21.10-98: American National Standard for Ductile-Iron and Gray-Iron Fittings, 3 In. Through 48 In. (76 mm Through 1,219 mm), for Water (PDF)

This standard covers 3- to 48-in. (76- to 1,219-mm) gray-iron and/or ductile-iron fittings to be used with ductile-iron pipe for water. Requirements for fittings with mechanical joints and flanged joints are listed in Tables 1 through 20 at the end of this standard. This standard may also be used for fittings with push-on joints or such other joints as may be agreed on at the time of purchase.

C110/A21.10-03: American National Standard for Ductile-Iron and Gray-Iron Fittings for Water (PDF)

This standard describes 3- to 48-in. (76- to 1,219-mm) gray-iron or ductile-iron fittings to be used with ductile-iron pipe for water. Requirements for fittings with mechanical joints and flanged joints are listed in Tables 1 through 19 at the end of this standard. This standard may also be used for fittings with push-on joints or such other joints as may be agreed on at the time of purchase. For the 3- to 24-in. (76- to 610-mm) size range, ductile-iron mechanical-joint fittings and ductile-iron push-on-joint fittings are rated for 350 psi (2,413 kPa) working pressure. Ductile-iron flange-joint fittings are rated for 250-psi (1,724-kPa) working pressure; however, 24-in. (610 mm) and smaller sizes may be rated for 350 psi (2,413 kPa) with the use of special gaskets. Gray-iron fittings having all types of joints described in this standard are rated for 150- or 250-psi (1,034- or 1,724-kPa) working pressures, as shown in the tables. For the 30- to 48-in. (762- to 1,219-mm) size range, fittings with all types of joints described in this standard are shown in the tables with rated working pressures of 150 or 250 psi (1,034 or 1,724 kPa), depending on the type of iron as shown in the tables. Fittings are adequate for the rated working pressure plus a surge allowance of 775 g (100 psi) or a surge allowance of half the rated working pressure, whichever is less.

C110/A21.10-08: American National Standard for Ductile-Iron and Gray-Iron Fittings for Water (PDF)

This standard describes 3- to 48-in. (76- to 1,219-mm) gray-iron or ductile-iron fittings to be used with ductile-iron pipe for water, wastewater, and reclaimed water. Requirements for fittings with mechanical joints and flanged joints are listed in Tables 3 through 21 at the end of this standard. This standard may also be used for fittings with push-on joints or such other joints as may be agreed on at the time of purchase. For the 3- to 24-in. (76- to 610-mm) size range, ductile-iron mechanical-joint fittings and ductile-iron push-on-joint fittings are rated for 350-psi (2,413-kPa) working pressure. Ductile-iron flange-joint fittings are rated for 250-psi (1,724-kPa) working pressure; however, 24-in. (610-mm) and smaller sizes may be rated for 350 psi (2,413 kPa) with the use of special gaskets. Gray-iron fittings having all types of joints described in this standard are rated for 150- or 250-psi (1,034- or 1,724-kPa) working pressures, as shown in the tables. For the 30- to 48-in. (762- to 1,219-mm) size range, fittings with all types of joints described in this standard are shown in the tables with rated working pressures of 150 or 250 psi (1,034 or 1,724 kPa), depending on the type of iron as shown in the tables. Fittings are adequate for the rated working pressure plus a surge allowance of 100 psi or a surge allowance of half the rated working pressure, whichever is less.

A21.10-1971 (C110-71): American National Standard for Ductile-Iron and Gray-Iron Fittings, 2 In. Through 48 In., for Water and Other Liquids (PDF)

This standard covers 2- to 48-inch gray iron and/or ductile iron fittings to be used with gray iron or ductile iron pipe for water and other liquids.

A21.51-1965 (C151-65): American National Standard for Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids (PDF)

This standard covers 3-in. through 48-in. ductile-iron pipe centrifugally cast in metal molds or sand-lined molds for water or other liquids. Characteristics of such pipe with push-on joints and mechanical joints are given in the tables.

A21.51-1971 (C151-71): American National Standard for Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids (PDF)

This standard covers 3-in. through 54-in. ductile-iron pipe centrifugally cast in metal molds or sand-lined molds for water or other liquids with push-on joints and mechanical joints. This standard may be used for pipe with such other types of joints as may be agreed upon at the time of purchase.

A21.51-1976 (C151-76): American National Standard for Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids (PDF)

This standard covers 3-in. through 54-in. ductile-iron pipe centrifugally cast in metal molds or sand-lined molds for water or other liquids with push-on joints and mechanical joints. This standard may be used for pipe with such other types of joints as may be agreed upon at the time of purchase.

AWWA 7F.3-1940: Standard Specifications for Fire Hydrants for Ordinary Water Works Service, Also Including Characteristics of the National Standard Fire-Hose Coupling Screw Thread (PDF)

These specifications embrace the various types and classes of hydrants for general water works service and cover the materials and workmanship employed in their fabrication. The setting and drainage of hydrants are not included in these specifications.

E101-77: American National Standard for Vertical Turbine Pumps – Line Shaft and Submersible Types (PDF)

The standard was first made in 1971, and received ANSI approval on June 1977. Also given is a brief history of the standard, the major revisions and information regarding the use of the standard. Part A of this standard provides minimum requirements for line shaft vertical turbine pump utilizing discharge column pipe up to and including 16 in. (400 mm) in size. The standard deals with a pump configuration up to and including the driver. Only electric motors are referred to as prime movers. Purchasers who intend to use the pumps for pumping liquids other than clear, cold water should modify the requirements after consultation with pump manufacturers.

B58.1-1961 (AWWA E101-61): American National Standard for Vertical Turbine Pumps – Line Shaft and Submersible Pumps (PDF)

This standard is recommended as a guide for users of the line shaft vertical turbine pump in selecting new equipment. The suggested standards are to be considered a minimum requirement for a first-quality vertical turbine pump, but do not preclude the use of more elaborate specifications on the part of either user or manufacturer, nor is it the intent to restrict the use of any equipment not meeting the requirements of this standard should the user not consider such compliance necessary.

B58.1-1971 (AWWA E101-71): American National Standard for Deep Well Vertical Turbine Pumps – Line Shaft and Submersible Types (PDF)

Part A of this standard provides minimum requirements for line shaft vertical turbine pumps utilizing discharge column pipe up to and including 16 inches in size. The standard pertains to equipment suitable for pumping water from wells. Purchasers who intend to use the pumps for pumping liquids other than water, or for pumping other than from wells should modify the requirements, preferably after consultation with pump manufacturers, to fit conditions of intended use. Part B of this standard provides minimum requirements for submersible vertical turbine pumps utilizing a 7-1/2- horsepower motor or larger. The standard pertains to equipment suitable for pumping water from wells.

U.S. House introduces bipartisan resolution to establish National Source Water Protection Week

(WASHINGTON, D.C.) – A bipartisan group of dedicated lawmakers in the U.S. House of Representatives introduced a resolution last week aimed at designating the week beginning Sept. 24, 2023, as National Source Water Protection Week. Spearheaded by Rep. Mariannette Miller-Meeks (R-IA) and Rep. John Sarbanes (D-MD), this resolution underscores the critical importance of ensuring a […]

National Lead Poisoning Prevention Week recognition

This year’s National Lead Poisoning Prevention Week (NLPPW), which is Oct. 23-29, provides an opportunity for water utilities to communicate with customers about reducing childhood lead exposure. The event was created by the U.S. Environmental Protection Agency (EPA), the Centers for Disease Control and Prevention (CDC) and the Department of Housing and Urban Development to […]

National Lead Poisoning Prevention Week

This year’s National Lead Poisoning Prevention Week (NLPPW), Oct. 22-28, provides an opportunity for water utilities to communicate with customers about reducing childhood lead exposure. The observance was created by the U.S. Environmental Protection Agency (EPA), the Centers for Disease Control and Prevention (CDC) and the Department of Housing and Urban Development (HUD) to heighten […]

Five National Water Associations Advise Congress to Build Permanent Low-Income Water Assistance Program at the U.S. Department of Health & Human Services

New water sector study compares five administrative pathways for establishing a permanent federal low-income water assistance program to support an estimated 20 million U.S water-burdened households afford the rising costs of drinking water and clean water services.  In response to growing water affordability concerns for low-income households, five leading water associations – the American Water […]

Denver Water makes international splash singing about watering rules

In early May, the water sector streamed onto the pop culture scene when a music video about watering rules produced by Denver Water’s Splashstreet Boys went viral, earning mentions in national media outlets including ABC’s “Good Morning America” and NBC’s “TODAY Show.”  The video, “I Water That Way,” was written, recorded and produced entirely in-house, […]

CA-NV Section achieves prestigious international accreditation for certification programs

The California-Nevada Section of the American Water Works Association (CA-NV AWWA) has achieved international accreditation from the American National Standards Institute (ANSI) National Accreditation Board (ANAB) for two certification programs. The programs, Backflow Prevention Assembly Tester (BPAT) and Cross-Connection Control Specialists (CCCS), were granted accreditation on June 20. CA-NV AWWA is the first drinking water […]

AWWA’s Opflow magazine receives national publishing award

Opflow, the American Water Works Association’s (AWWA) magazine for operators, recently received a fourth consecutive national award recognizing excellence in publishing.  The annual APEX Awards, hosted by Communications Concepts, are based on excellence in graphic design, editorial content, and the ability to achieve overall communications excellence. This year, Opflow earned an Award of Excellence for […]

AWWA highlights strong Korean partnership as key to international efforts

In support of the global water community’s efforts to collaborate and share knowledge, the American Water Works Association’s (AWWA) CEO David LaFrance recently took part in the Water Korea conference in Seoul, South Korea, hosted by the Korea Water and Wastewater Works Association (KWWA). AWWA’s International Council, including chair Colin Chung, who attended Water Korea […]

AWWA highlights commitment to global water security, sustainability at AWWAIndia’s International Conference & Exhibition 2023

JAIPUR, India – Leaders from the American Water Works Association (AWWA) are participating in the AWWAIndia Association’s (AIA) second annual International Conference & Exhibition (AICE 2023), which began today at Hotel Lalit, Jaipur, Rajasthan, India. This year’s two-day conference focuses on “Water Security & Sustainability.”  In collaboration with the Ministry of Housing and Urban Affairs and […]

AWWA diversifies student chapters with virtual and international options

Striving to further its mission of creating a better world through better water, the American Water Works Association (AWWA) is embracing a more diversified membership by including younger and, in some cases, international, members. (Pictured right, Dr. Rania, faculty advisor with Mu’tah University’s student chapter in Jordan.) To attract students from historically Black colleges and universities […]

AWWA deepens global partnerships during Korea International Water Week

An American Water Works Association (AWWA) delegation – including Pat Kerr, president; Sally Mills-Wright, Standards Council chair; and Colin Chung, International Council member – recently visited South Korea to engage with local water sector leaders, expand international partnerships and attend the Korea International Water Week (KIWW) 2023. KIWW is an annual event organized by Korea Water […]

AWWA launches Safe Drinking Water Act 50th Anniversary video campaign for National Water Quality Month

The American Water Works Association (AWWA) is pleased to announce the launch of an eight-week video campaign in celebration of the Safe Drinking Water Act (SDWA) 50th Anniversary. The video campaign titled ‘Celebrating 50 Years of the Safe Drinking Water Act’ also coincides with National Water Quality Month in August.  For the past 50 years, […]