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This report assesses the spatial and temporal trends in
water quality at 51 sites on rivers and streams across the
Wellington region over the five year period (1997-2003).
It bases assessments on monthly physico-chemical and
microbiological water quality records, together with annual
macroinvertebrate and periphyton monitoring records
collected under Greater Wellington Regional Council's
Rivers State of the Environment (RSoE) monitoring
programme.