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Forward
More than ten years ago, I began working on the science underlying
phosphorus cycling related to Total
Maximum Daily Load issues on the Tualatin River watershed west of
Portland, Oregon.
The Tualatin was one of the first water bodies in the US to have
TMDLs implemented. Because
it was so early in the process, it was a great training ground for
learning how watershed management affects water quality.
I prepared this document, with an enormous amount of invaluable input
and review by experts from around the US, because it contains what I
wish we had known when we started the process in the Tualatin. It is
meant to serve as an introduction to the science, policy, and societal
elements of the TMDL program. Because of the complex and
all-encompassing nature of the TMDLs, this document must be considered
as a starting point only. It provides a solid basis for a beginning and
then provides leads to further information needed to manage watersheds
for TMDLs.
The input of many individuals was essential to the success of this
paper, and I owe them all great thanks. A list of their names precedes
the body of the paper. Any errors, however, are mine and mine alone.
Beaverton, OR
April 1999
Dr. Wesley Jarrell
University of Wisconsin
Madison, WI 53706
capmem@aol.com |
