Port Granby
Long-Term Waste Management Facility

The newly constructed long-term waste management facility (LTWMF) is situated in
Port Granby on the east side of Elliott Road, south of the railway lines, 750 metres away from the Lake Ontario shoreline.

The LTWMF includes an engineered aboveground mound to isolate the historic low-level radioactive waste by securely encasing it on the top, bottom and sides with thick, multiple layers of natural and specially manufactured materials.

These layers form components of the cover and baseliner that, independently, are robust enough to prevent contaminants from entering the environment. Together, they function as multiple back-up safety systems.

The multi-component cover system is approximately 2.75 m thick and reduces surface water infiltration through the waste, provides protection of the mound from inadvertent intrusion into the waste, and reduces levels of gamma radiation on the surface of the mound to background levels.

Monitoring systems are installed within the mound and around the perimeter of the long-term waste management facility site.

Port Granby Waste Water Treatment Plant

A dedicated waste water treatment plant constructed at the LTWMF meets stringent Canadian Nuclear Safety Commission requirements for effluent discharge into Lake Ontario.

Equipped with best available technologies to treat waste water, the new plant went into operation in October 2016, prior to starting cleanup activities at the former waste management facility.

The advanced treatment technology ensures the quality of water being discharged into Lake Ontario meets stringent Canadian Nuclear Safety Commission requirements.

Learn more about the Waste Water Treatment Process

Port Granby Long-Term Waste Management Facility

Port Granby Waste Water Treatment Plant

Quarterly Results of the Effluent Monitoring Program

Port Granby
Long-Term Waste Management Facility

Quarterly Results
of the Effluent
Monitoring Program