Part 5 of the 5-part Principles and Practices of Water Supply Operations (WSO), this text provides a practical education in mathematics, hydraulics, chemistry, and electricity. Hundreds of problems and examples are included to relate these sciences specifically to municipal water supply operations. This book is referenced in the four other textbooks in the series. It is a required text when used with other WSO series texts, but may be used alone as a basic science text. Designed for self study or classroom use, the Fourth Edition provides many new problems and examples. Includes glossary, index, conversion tables, periodic table of the elements, and color plates.

Computer modeling is a water utility's most powerful tool for managing and operating a water distribution system. This 4th edition of M32 Computer Modeling of Water Distribution Systems, describes how to build accurate water distribution system models, and use models to manage assets and solve hydraulic and water quality problems. The manual discusses how to use models to: Predict pressures and flows Evaluate layouts and designs Solve operating problems Investigate control schemes Size components Develop new or improve existing flushing programs Prioritize asset maintenance, rehabilitation, and replacement efforts Calculate energy costs Improve water quality This edition has been updated to reflect significant changes in computer modeling and the water industry. It has more information on asset management, and new chapters on model maintenance and advanced modeling applications (e.g., system reliability and real-time modeling).

AWWA's Water System Operations (WSO) series is the leading operator certification training, aligned with current Association of Boards of Certification (ABC) Need-to-Know criteria and offering training based on experience and certification level. WSO Water Distribution, Grades 1 & 2, is organized into 22 chapters addressing core test content on certification exams. Chapters discuss regulations, operator math and chemistry, and specific distribution processes in detail. Other chapters cover water use and system design, water mains, hydrants and valves, water system supply security and public relations. Everything you need to know to pass your Grade 1 or 2 exam is included in this book.

M73 provides the reader with a general understanding of the principles involved with groundwater, its movement and character, and the subsequent impact these characteristics have on the development of groundwater resources systems and their long-term sustainability for water utilities. This manual should be considered a companion to M21. There are more detailed books available in the AWWA catalog on well drilling procedures, well maintenance, groundwater treatment, and injection programs that are tangential to groundwater management but are relevant to utilities that rely on groundwater for supplies.

Reverse osmosis (RO) membranes have been used in water reuse since the 1960s, however; the use of membranes in full-scale reuse applications has changed dramatically. The goal for membrane facilities in water reuse applications is finding the balance between cleaning frequency and chemical and energy costs. This manual presents a comprehensive description of the issues related to applying membrane technologies in water reuse projects. In addition, this manual devotes an entire chapter to case studies to showcase a variety of real world applications.

This manual presents the history and general application of elastomers in waterworks pipes, valves, and fittings. It provides guidance on generally available elastomers and products and their application. Questions about specific situations or applicability to specific valves or fittings should be directed to the manufacturer or supplier. Information contained in this manual is useful for operators, technicians, and engineers for gaining a basic understanding of the use and selection of elastomers.

As desalination technologies advance and the availability of conventional freshwater sources decreases, inland water users are increasingly turning to desalination. This manual presents the key issues and challenges of developing inland desalination facilities, including concentrate management and disposal methods. It aims to aid water utilities, industrial facilities, and other users in evaluating and adapting inland desalination for their water supply needs.

This manual provides users of PE pipe and fittings in potable water systems with both technical and general information on design, specification, procurement, and installation. Coverage includes engineering properties of polyethylene, manufacturing, hydraulics, external loads, joining, fittings, transportation, handling, and storage, installation, and maintenance.

This manual provides the user with both general and technical information to aid in design, procurement, installation, and maintenance of PVC pipe and fittings. This manual presents a discussion of recommended practices. It is not intended to be a technical commentary on AWWA standards that apply to PVC pipe, fittings, and related appurtenances. Topics covered include: general properties of polyvinyl chloride pipe; testing and inspection; hydraulics; design factors related to external forces, internal pressure, and thrust; receiving, storage, and handling; installation; testing and maintenance; service connections; and installation.

Providing a reliable supply of water requires being prepared for water shortages of varying degree and duration, and preparing for drought and water shortages before they occur is the best defense. A Water Shortage Contingency Plan (WSCP) enables a water supplier to assess the risks and reduce the vulnerability of a community to drought impacts and establishes priorities that will provide water for public health and safety and minimize impacts on economic activity, environmental resources, and the region's lifestyle. M60 will help water managers facing water shortages by illustrating how to employ tried-and-true strategies and tactics of drought mitigation, as well as introducing new tools and methods. The manual accomplishes this by providing a step-by-step process to anticipate and respond to water shortages through a structured planning process.

As their infrastructures age, utilities are increasingly challenged to maintain levels of service while keeping water affordable to all. Water main condition assessment helps utilities meet this challenge by identifying more precisely where money is best spent, leaving in place pipelines that have adequate integrity, and preventing the unnecessary failure of others. This manual provides technical information to aid utility managers and engineers in making informed decisions, along with practical information about how methods can be deployed. It covers the benefits of condition assessment, how to plan for and build a condition assessment program, methods of condition assessment, strategies for economical assessments, and how information gathered during condition assessment can be best used by utilities in managing their systems.

The distribution of reclaimed water using dual water distribution systems, one for potable water and the other for nonpotable water, is a widely accepted practice. Some drivers for the increasing use of reclaimed water include diminishing supplies of high-quality water resources, escalating costs for developing new sources or for treating poor-quality water to potable-water standards, and the increasing costs involved in discharging wastewater to the environment. M24 provides the latest information for water systems wishing to distribute reclaimed water. This manual discusses the planning, design, construction, operation, regulatory framework, and management of community dual water distribution systems, which consist of separate systems for distributing potable water and nonpotable water principally drawn from reclaimed wastewater specifically for use in such dual distribution systems. This fourth edition contains considerable revision, most notably the incorporation of the USEPA 2012 Guidelines for Water Reuse and 2017 Potable Reuse Compendium. Additional changes that reflect advancements in the field have also been incorporated throughout the manual.

Disruptions in water quality and delivery can result from emergencies such as natural disasters, accidents, or intentional acts. Regardless of their size and location, utilities should prepare for emergencies before they occur and be able to quickly restore water services. This manual presents an all-hazards approach for principles, practices, and guidelines in water utility emergency planning. It walks through all areas of emergency preparedness including plan development, mutual aid partnerships, communication strategies, staff preparedness, risk mitigation and more. The fifth edition has been significantly updated to include recent changes within the industry. Several new case studies based on recent emergency situations have been added. Additionally, the manual now highlights key resources that can provide more in-depth processes and procedures.

Faced with ever-increasing challenges, water utility staff can benefit from proactively evaluating distribution system performance and implementing actions that improve operations, infrastructure management, and water quality. Self-Assessment for Distribution System Optimization outlines the Partnership for Safe Water approach to distribution system optimization. Suitable for a wide range of distribution system sizes and configurations, this handbook guides users through a process of completing a comprehensive distribution system self-assessment and creating an action plan framework to improve performance and achieve optimization.

AWWA's most popular operator training aid, this study guide is specially designed to give water operators and students practice in answering questions that are similar in format and content to the questions that appear on state certification exams. Sample questions and answers for both water treatment and distribution systems are included. This study guide was developed by AWWA in cooperation with the Association of Boards of Certification (ABC), which certifies water and wastewater operators in most states. ABC certification is not only a way to protect public health and the environment, but also provides numerous career benefits to both employees and employers. If you were previously familiar with AWWA's Water Operator Certification Study Guide, Sixth Edition this replaces that book, with all-new questions and answers.

This manual provides information about the most common large flowmeters used in water treatment and in custody-transfer applications, including the Venturi, modified Venturi, orifice plate, electromagnetic (mag), turbine and propeller, transit-time ultrasonic, vortex, averaging Pitot, and averaging insertable electromagnetic (mag). The discussion of these meters covers basic theory, installation, maintenance, and advantages and disadvantages. General concepts applicable to flowmeters are also discussed, including flow characteristics, installation and performance. The third edition of this manual contains significant updates that aim to provide more specific information on flowmeters. Additional information has been added on data signals, electronic communication information signal outputs, field testing and more.

This manual provides water utilities and other industry professionals with the skills and information to develop, implement, and measure the success of a water conservation program. Those with an existing conservation program discover areas of improvement using a more comprehensive approach. M52 also discusses water conservation rates, community involvement, how to overcome obstacles and measures for success. New in the second edition: New case studies and appendices Updated Water Loss Control Methodology Advanced Metering Infrastructure, Landscaping, and Commercial information Updated financing and pricing Expanded evaluation of cost-effectiveness of measures Conservation Performance Measurement, Tracking, Reporting Expanded identification and evaluation of water use efficiency measures

Distribution systems represent the last barrier available to water systems to maintain safe and high-quality water, and this manual provides a "first stop" for common distribution system water quality challenges. M68 offers practical guidance and best management practices for maintaining and improving distribution system water quality. It will help drinking water utilities and professionals understand the factors that affect water quality, ways to address them and best practices for optimizing distribution system water quality. Each chapter within the manual focuses on a unique distribution challenge, how to characterize and respond to such challenges, and recommend best practices to address ongoing issues and optimization strategies. The manual covers a variety of topics such as, corrosion, taste and odor concerns, microbiology, capacity and water age, and more. M68 includes numerous case studies to better show the applications discussed. The manual also provides a larger resources section where readers can find places for additional expertise.

Your authoritative resource on water rates, fees, and charges.

This manual of best practices provides complete information for designing, installing, and maintaining steel pipe and fittings for potable water transmission and distribution. M11 has been completely updated with new and revised information has been incorporated into every chapter within the fifth edition. Additional information on, fittings design, welded joint design, suggested bracing for shipping of pipe, weld details for outlets and crotch plates, aboveground design and more has been added. Updates have been made to materials, external load consideration, buckling analysis, pipe joints, coatings and corrosion prevention. Additionally, a new chapter on thrust design has been added, as well as four new appendices.

This standard describes minimum requirements for submersible vertical turbine pumps utilizing a discharge column pipe assembly, 5 hp or larger, used in water service, including materials, design, manufacture, inspection, and testing.

Faced with ever-increasing challenges, it is important for wastewater utility staff to proactively evaluate treatment plant performance and implement actions that improve operations, energy efficiency, and effluent quality. Self-Assessment for Wastewater Treatment Plant Optimization outlines the Partnership for Clean Water approach to achieving this objective, in as energy efficient a manner as possible. Suitable for wastewater treatment facilities in a wide variety of sizes and process configurations, this handbook guides users through the process of completing a comprehensive wastewater treatment plant self-assessment and creating an action plan framework to improve performance and efficiency- and achieve optimization.