Greater Wellington’s river water quality and ecology monitoring programme provides information on the stream condition across the Wellington Region. Water quality and ecosystem health are currently monitored at 39 hard-bottomed and 7 soft-bottomed river and stream sites within each main river catchment (Whaitua). These sites were chosen to represent the major land uses and human activities and the natural diversity of rivers and streams in the wider Wellington Region. This report contains monitoring results from 2018/19 to 2022/23.
Drag and scroll on the map to move and zoom in on areas of interest, hover on the site circles and river lines to see more information. Current state for key monitoring variables are displayed in the hover information for each site – see the methods page for details on how each state is assigned.
River and stream water quality is assessed at monthly intervals by measuring a range of physicochemical and microbiological variables:
Ecological variables assessed as part of the programme include:
This web report may be cited as: GW 2023. River water quality and ecology annual report 2022/23. Greater Wellington.
A static PDF version of this report can be viewed and downloaded here.