In October and November 2019 we tested bore water quality across the Motueka/Riwaka Plains.
Our aim was to identify:
Local bores source water from the underground aquifer (water-bearing ground layers) that are underneath the Motueka / Riwaka Plains. The water comes from rivers and rainfall which soaks in through the land. There are many potential sources of contamination.
For household bores (where the water supply is used only by the people on that property) there is no requirement for the property owner to regularly test the water quality. Most of these household bores are ‘pile driven’ and shallow (4 - 6 m deep).
Private bores in the Motueka / Riwaka Plains also supply multiple houses, businesses, public facilities, community centres and schools. As the water from private bores is not piped through a Council treatment plant, there is no testing or treatment of these bores by Council to ensure water quality meets national standards. This means it is up to the property owner where the bore is located to test the water quality.
Motueka has an estimated 2000 private domestic bore water takes Local bores source water from rivers and ground aquifers. These are fed by rainfall which soaks in through the land, and there are many potential sources of contamination. As the water is not piped through a council treatment plant, there is no testing or treatment to ensure water quality meets national standards.
Approximately one-third of the houses in Motueka are connected to the Tasman District Council water supply. This makes Motueka the largest town in New Zealand that doesn’t have a fully reticulated (networked) supply.
No. Currently there are no plans to connect anyone with their own private bore onto the Council reticulated supply.
A report detailing the findings from this survey is being produced and will be made available in the next few months. For more information about groundwater quality and security please refer to the Ministry of Health website.
If you have any questions about the survey itself, please email firstname.lastname@example.org or phone 03 543 8680. Alternatively contact Joseph Thomas, Resource Scientist, on 03 543 8494.
If it is a health-related question, please contact the duty Council Environmental Health Officer or the Nelson Marlborough Public Health service.