Regional Information and Monitoring Network

The Canadian Nuclear Safety Commission (CNSC) and Environment and Climate Change Canada (ECCC) are publishing databases with effluent and environmental monitoring results from nuclear facilities located along the Ottawa River watershed as part of the Regional Information and Monitoring Network (RIMNet) for the Ottawa River Watershed Basin initiative. The facilities included are Chalk River Laboratories, Nordion Canada Inc., SRB Technologies Canada Inc., and Nuclear Power Demonstration Waste Facility. The initiative was developed to address questions and concerns expressed by members of the public and Indigenous Nations and communities about the availability of publicly accessible environmental monitoring data in the Ottawa River Watershed Basin. More information about the initiative is available here: https://www.cnsc-ccsn.gc.ca/eng/resources/environmental-protection/rimnet/

This dataset contains effluent and environmental monitoring results from Chalk River Laboratories, Nordion Canada Inc., SRB Technologies Canada Inc., and Nuclear Power Demonstration Waste Facility.  All of the effluent and emissions releases to the environment in this dataset are below the CNSC licensed release limits. All of the environmental monitoring results in this dataset are below environmental quality guidelines.

More information about CNSC staff’s assessment of these facilities are found in CNSC staff’s regulatory oversight reports: https://www.cnsc-ccsn.gc.ca/eng/resources/publications/reports/regulatory-oversight-reports/

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 20:57 (UTC)
Created April 17, 2026, 20:57 (UTC)
contact_email informationmanagement-gestiondelinformation@cnsc-ccsn.gc.ca
contact_person {"fr": "Gouvernement du Canada;Commission canadienne de sûreté nucléaire;Direction de la protection de l'environnement, de la radioprotection et de l'évaluation,informationmanagement-gestiondelinformation@cnsc-ccsn.gc.ca", "en": "Government of Canada;Canadian Nuclear Safety Commission;Directorate of Environmental and Radiation Protection and Assessment,informationmanagement-gestiondelinformation@cnsc-ccsn.gc.ca"}
criticality_level []
data_dictionary ["environment", "utilities_communication"]
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2023-08-31 00:00:00
open_canada_keywords {"fr": ["radionucléides", "surveillance régionale", "Laboratoires de Chalk River", "Nordion", "SRBT", "Réacteur Nucléaire de Démonstration", "rivière des Outaouais", "Matière radioactive", "Énergie nucléaire", "Installations nucléaires", "Polluant", "Pollution", "Environnement", "Émissions atmosphériques", "Qualité de l'air", "Qualité de l'eau"], "en": ["radionuclides", "regional monitoring", "Chalk River Laboratories", "Nordion", "SRBT", "Nuclear Power Demonstration", "Ottawa River", "Radioactive materials", "Nuclear energy", "Nuclear facilities", "Pollutants", "Pollution", "Environment", "Atmospheric emissions", "Air quality", "Water quality"]}
open_canada_subject ["economics_and_industry", "information_and_communications", "nature_and_environment"]
sensitivity_level unrestricted
title_fr Réseau régional d'information et de suivi
update_frequency as_needed