Groundwater is the water found underneath the ground in spaces between rocks, sand, and soil.
Levels and quality are monitored quarterly to assess potential impacts of landfill processes and operations on groundwater.
Groundwater is monitored at over 150 stations on and off the landfill site, including 14 privately-owned domestic drinking water wells located within a 2km radius of the landfill.
Groundwater Monitoring Program results are reported annually in the Hartland Landfill Groundwater Surface Water and Leachate Monitoring Program reports, found here.