Water Well Rehabilitation: A Practical Guide to Understanding Well Problems and Solutions PDF
Preview Water Well Rehabilitation: A Practical Guide to Understanding Well Problems and Solutions
The Sustainable Well Series Roy Cullimore Series Editor The Application of Heat and Chemicals in the Control of Bio fouling Events in Wells, George Alford and Roy Cullimore Water Well Rehabilitation: A Practical Guide to Understanding Well Problems and Solutions, Neil Mansuy WATER WELL REHABILITATION A Practical Guide to Understanding Well Problems and Solutions By Neil Mansuy Layne GeoSciences, Inc. A Subsidiary of Layne Christensen Company CRC Press Taylor & Francis Group Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business Library of Congress Catalogieg-in-Publicatioii Data Mansuy, Neil. Well water rehabilitation : a practical guide to understanding well problems and solutions / Neil Mansuy. p. cm. — (The sustainable wells series) Includes bibliographical references and index. ISBN 1-56670-387-5 (alk. paper) 1. Wells-Design and construction. 2. Wells-Maintenance and repair. 3. Wells—Fouling. 4. Fouling organisms—Control. II. Title. III. Series. TD405.M36 1998 628.ri4—dc21 98-44337 CIP This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming, and recording, or by any infor mation storage or retrieval system, without prior permission in writing from the publisher. The consent of CRC Press LLC does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific permission must be obtained from CRC Press LLC for such copying. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation, without intent to infringe. © 1999 by CRC Press No claim to original U.S. Government works International Standard Book Number 1-56670-387-5 Library of Congress Card Number 98-44337 Printed in the United States of America 2 3 4 5 6 7 8 9 0 Printed on acid-free paper Preface This book is a compeEdium from a receet workshop preseeted by Layne Geosciences Inc. and organized by the Regina Water Research Institute, held in Regina, Saskatchewan, Canada. The information contained within this monograph has been gathered from many years of theoretical training and research under the expert guidance of Dr. Roy Cullimore while at the Regina Water Research Institute. In addition to the educational background, much of what is presented here are novel concepts and ideas based upon very extensive practical experience on many thousands of wells and water systems. One of the primary purposes of this monograph is to further advance the knowledge and understanding of well problems and solutions. There is a lack of published information on the topic of well rehabilitation. Some of the concepts and ideas presented here are also contrary to the current literature and the current understanding. This is most evident in the area of the source of "‘iron related bacteria”, many of the “unsafe” bacterial samples, and the “contamination” of wells. Some of these concepts are from observations made by the author during many years of practical experience with water well rehabilitation. Some of the concepts on well hydraulics are presented for their significance to well rehabilitation issues and are currently under further investigation. Many of these concepts require additional research, in order to further understand well problems and solutions. In the water well industry, it is important to strengthen and enforce well construction codes, designed to protect our most precious resource. In addition to prevention of some contamination of wells taking place, it is also important to begin to accept the fact that wells need periodic appropriate cleaning and preventative maintenance treatments, just like any other part of a water system. The well has always been the part of, an entire water system not getting maintenance cleaning, because it is out of sight. The lack of adequate maintenance is also perpetuated by the historical misconception that aquifers are sterile and in order for a well to experience biofouling, it had to be contaminated. In order for water systems to maintain good water quality, it is most important to prevent biofouling of surfaces within water environments. I would like to thank Dr. Roy Cullimore for his unending support in the public education in this field and also in preparation of this manuscript. Without the efforts put forth by him, this manuscript would have taken much longer to prepare. V,# »'■^\■ '0'¿V^'‘ m ^M Neil Mansuy has approximately 20 years of extensive, worldwide well rehabilitation experience. This includes both academic training and consider able practical experience. Neil holds a M.Sc. degree from the University of Regina, Regina, Saskatchewan, Canada, specializing in iron-related bacteria and causes of well plugging. Much of his academic training was obtained while working seven years at the Regina Water Research Institute under the guidance of Dr. Roy Cullimore. The practical experiences began while working at the Water institute. Some of this practical experience involved the application of heat or heat in combination with chemicals at sites in the U.S., Canada, and France. After working at the Regina Water Research Institute, he worked as a private consultant and was president of a company selling water treatment equipment. During the past nine years he has worked with Layne Geosciences Inc., based in Mission Woods, Kansas, as an aquifer and well rehabilitation specialist. During the past nine years Neil has become recognized as a leading authority on well rehabilitation. Neil gives approximately 100 seminars and workshops a year covering all aspects of well problems and solutions. During the past nine years, assessment of well problems and recommending cost-effective solutions has been performed on thousands of wells across the U.S. and around the world. In recent years, he has recommended solutions to hundreds of wells, aquifers and water systems with “unsafe” bacterial results. Neil has the unique combination of extensive multidisciplinary understanding of well problems and the experience to recommend the most cost-effective solutions. He continues to make strides in further understanding lost capacity and water quality problems, while continually looking for more effective, environmentally sound methods and procedures for removal of deposits from water systems, wells and aquifers. Neil is also the developer of the patented Layne Anoxic Block System'^'^ for controlling biofouling problems on wells. Acknowledgments The experience and information in this book would not be possible without all the outstanding people that I have worked with in the Layne Christensen organization. It has been their confidence in me that has allowed the ongoing work towards improving well rehabilitation procedures. It is through the professionalism portrayed by all levels of the Layne Christensen Company that we continue to lead the industry. I am grateful for the guidance given by Dr. Roy Cullimore while working on my undergraduate and graduate degrees. Special thanks are given to Dr. Roy Cullimore, Natalie Ostryzniuk, and Vincent Ostryzniuk of Droycon Bioconcepts Inc. during the preparation of the manuscript for this book. I would like to dedicate this book to my three children Trevor, Rebecca, and Chantal for the sacrifices they have made during a lifetime of developing knowledge and experience with well rehabilitation.
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