scope:

Foreword

This Disinfection of Pipelines and Storage Facilities Field Guide is one of the "Field Guide" series of books published by the American Water Works Association (AWWA). These books are meant to be small, practical, how-to publications on specific subjects of importance to drinking water system operating personnel. These books omit most of the theory and background that have led to the use of the procedures described in the guides.

This fundamental information is found in other AWWA publications and is referenced in the field guides. The information in this field guide, like the other books in this series, provides what is needed to do the work. Useful tables and easy to follow illustrations help system operators perform the procedures described in the ANSI/AWWA disinfection standards and in other references. The field guides get straight to the point and provide the necessary information to perform the most common procedures. This approach leads the operator to the most useful solutions.

There are several special notes included throughout the book. Look for "Ops Tips" and the "Table Tamer" in call-outs and text boxes for help with important points and how to use some of the tables. There are also several "calculators" that help plug in the numbers needed to calculate a value.

"Calculators" provide easy-to-use, plug-in-the-numbers, equations and examples used to give quick results. The conversion factors and other constants have been combined so that the equation is greatly simplified. The derivation of the formula is not given, just the result. More detail about the source of the constants shown for the calculators is shown in Appendix A.

The authors hope this information is useful and is used to supplement hands-on training and, thus, becomes an indispensable companion for both utility and contractor personnel.