NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competencies and with regard for appropriate balance.
This study was supported by Contract No. DACW-72-96-C-0005 between the National Academy of Sciences and U.S. Army Corps of Engineers. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the organizations or agencies that provided support for this project.
Library of Congress Catalog Card Number 99-60701
International Standard Book Number 0-309-06097-4
Additional copies of this report are available from:
National Academy Press
2101 Constitution Ave., NW Box 285 Washington, DC 20055 800-624-6242 202-334-3313 (in the Washington metropolitan area) http://www.nap.edu
Cover by Van Nguyen, National Academy Press, using a photo from the South Florida Water Management District (http://www.sfwmd.gov).
Copyright 1999 © by the National Academy of Sciences. All rights reserved.
Printed in the United States of America.