The final product quality of reclaimed
water is dependent on many factors including the original drinking water quality
and the associated watershed. Reclaimed water quality can be correlated with
drinking water quality in many cases to provide insight into the sources of bulk
organic carbon, ions and synthetic organic compounds and other constituents in
reclaimed water. This paper presents an overview of how watershed analysis can be
used to help predict reclaimed water quality and aid decision-makers in the
choice of treatment processes. Examples are presented for dissolved organic
carbon, halogenated organic carbon, classes of synthetic organic compounds and
other constituents. Includes 17 references, figures.