Monitoring the number and location of wells drilled gives an indication of pressure on groundwater resources through development.
Contractors are required to keep drill-logs, which provide an important source of information on groundwater resource investigation and management. We also monitor the construction and completion of wells to ensure they meet the conditions set in the consent to avoid or mitigate adverse effects on the resource.
This indicator monitors the number of resource consents issued to drill wells or piezometers (narrow wells drilled for monitoring and investigations), and their locations in the Waikato region. Consents may be issued for multiple drill holes.
This information shows where groundwater resources are investigated, monitored or developed for water supply. Drilling activities above the water table, and temporary drilling (for example, site investigation), are excluded from this indicator as no resource consent is required.
The region’s groundwater resource makes up about 90 per cent of our fresh water. The graph linked shows the number of resource consents issued for constructing groundwater wells in the Waikato region from 1990 to 2015. Consents can be issued for drilling and constructing multiple wells or piezometers at a site. Piezometers are narrow wells drilled for monitoring or investigation purposes.
The region’s groundwater wells supply drinking water, irrigation water for agriculture and horticulture and water for industrial use. Groundwater wells and piezometers (narrow wells) are also constructed for monitoring and investigating purposes.
Managing groundwater well construction is important as poorly constructed wells can result in contaminated water supplies. It also helps tell us about where the pressure on this water resource is occurring.
Waikato Regional Council checks consented wells to ensure that they are properly constructed and completed and comply with the conditions of the resource consent. It's important that wells comply with resource consent conditions, as:
More detail on this indicator, including how and where we collect this information, is available in the technical information page.
This indicator is updated annually.
Groundwater Hydrologist - Science and Strategy Directorate
Updated 30 June 2016