This book has come from many sources. It started out as a set of course notes to help transfer
knowledge about earth science computing and especially environmental data management to our
clients as part of our software and consulting practice. While it is still used for that purpose, it has
evolved into a synthesis of theory and a relation of experience in working with site environmental
data. It is not intended to be the last word on the way things are or should be done, but rather to
help people learn from the experience of others, and avoid mistakes whenever possible.
The book has six main sections plus appendices. Part One provides an overview of the subject
and some general concepts, including a discussion of system data content. Part Two covers system
design and implementation, including database elements, user interface issues, and implementation
and operation of the system. Part Three addresses gathering the data, starting with an overview of
site investigation and remediation, progressing through gathering samples in the field, and ending
with laboratory analysis. Part Four covers the data management process, including importing,
editing, maintaining data quality, and managing multiple projects. Part Five is about using the data
once it is in the database. It starts with selecting data, and then covers various aspects of data
output and analysis including reporting and display; graphs; cross sections and similar displays; a
large chapter on mapping and GIS; statistical analysis; and integration with other programs.
Section Six discusses problems, benefits, and successes with implementing a site environmental
data management system, along with an attempt to look into the future of data management and
environmental projects. Appendices include examples of a needs assessment, a data model, a data
transfer standard, typical constituent parameters, some exercises, a glossary, and a bibliography.