Programme overview
Greater Wellington carries out coastal monitoring at a range of beach, estuary, harbour and rocky shore sites throughout the region. Monitoring has typically focussed on the impact and accumulation of urban stormwater contaminants and sediment in estuaries and harbours, as these are our most vulnerable depositional environments. Representative beach and rocky shore habitats are surveyed periodically with results available in previous years. Use the monitoring year links in the top navigation bar to see reports for each year.
2020/21 coastal monitoring:
Te Whanganui-a-Tara (Wellington Harbour) Subtidal Monitoring
Seafloor ecosystem health and marine sediment quality monitoring at 15 subtidal sites, November 2020 – full report 
Te Awarua-o-Porirua Harbour Subtidal Monitoring
Seafloor ecosystem health and marine sediment quality monitoring at five subtidal sites, November 2020 – full report
Te Awarua-o-Porirua Harbour Sediment Plate Monitoring
Annual monitoring of sediment deposition and estuary health indicators at nine intertidal and nine subtidal sites, December 2020 – full report
Hutt Estuary Intertidal Sediment Monitoring
Annual monitoring of sediment deposition and estuary health indicators at one site, December 2020 – report card
Waikanae Estuary Intertidal Sediment Monitoring
Annual monitoring of sediment deposition and estuary health indicators at three sites, December 2020 – report card
This web report may be cited as: GWRC 2021. Coastal water quality and ecology monitoring 2020/21. Greater Wellington Region Council.
A PDF list of all the links on this site can be viewed and downloaded here.