Table Of ContentThe 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
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© 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.
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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.
