Groundwater is a vital resource. It is used for drinking water, industry, and is a major contributor to rivers and streams. We monitor local groundwater quality and quantity regularly. Here, you can find reports and data to see how groundwater quality has changed over time.
What are we doing to monitor groundwater quality and quantity?
We regularly monitor groundwater quality in wells in Canterbury. You can explore the data collected from these wells and see how groundwater quality has changed over time on the Land Air Water Aotearoa's (LAWA) website or view the video to learn more about the water quality monitoring module.
Annual Groundwater Quality Survey Reports
We collect annual groundwater samples from wells across the region. The survey data provide an annual snapshot of groundwater quality in the Canterbury region and helps us evaluate long-term, regional-scale changes in groundwater quality.
- Annual Groundwater Quality Survey 2018 (PDF File, 2.64MB)
- Previous Annual Groundwater Quality Surveys
- Groundwater Surveys (Zone)
- Annual Groundwater quality survey 2018 news story
- Nitrate in Canterbury aim to reverse trend news story
- Reporting: Farm Environment Plan audits
- Reporting: Farming to limits - freshwater management
Maps of the risk of nitrate contamination in Canterbury groundwater
Environment Canterbury, jointly with Community and Public Health/Te Mana Ora, produces a series of maps of the risk of nitrate contamination in Canterbury groundwater used for drinking.
The maps are reviewed and updated every two years. The latest version was published in April 2020 and is available below.
More information about nitrate and drinking water is available on the Community and Public Health Website.
- Freshwater monthly snapshot
- To see data on river flows and groundwater levels in Canterbury, visit the LAWA website.