Quantifying Contaminant Sources in the Upper Whangarei Harbour Catchment

This report describes a review of existing information on contaminant sources in the catchment of the upper harbour, the estimation of contaminant loads from certain diffuse sources and  the development of options to fill current gaps in knowledge. The contaminants of interest are sediment, nutrients (nitrogen and phosphorus), faecal pathogens and indicator bacteria, and
metals (copper, lead and zinc).