Groundwater quality is monitored quarterly to assess potential impacts of landfill processes and operations on groundwater. This information is also used to assess compliance with water quality guidelines at the property boundary. The monitoring well network includes groundwater wells adjacent to the Phase 1 and Phase 2 areas and locations adjacent to the property boundary.
Groundwater levels are monitored 6 times per year at approximately 100 well locations to understand groundwater flow within the landfill property. Groundwater quality is monitored at approximately 76 well locations to look for changes in water chemistry that could indicate effects of landfill leachate on groundwater.
Monitoring of domestic wells in the vicinity of Hartland landfill is another component of the groundwater monitoring program. A total of 13 privately-owned domestic drinking water wells located within a 2 kilometre radius of the landfill are monitored by CRD staff.