Great Lakes Water Quality Monitoring and Surveillance Data

Water quality and ecosystem health data collected in the Great Lakes and priority tributaries to determine baseline water quality status, long term trends and spatial distributions, the effectiveness of management actions, determine compliance with water quality objectives and identify emerging issues are included in this dataset.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 21:12 (UTC)
Created April 17, 2026, 21:12 (UTC)
contact_person {}
criticality_level []
data_dictionary []
geographic_scope ["0"]
open_canada_collection primary
open_canada_date_published 2015-09-08 00:00:00
open_canada_keywords {"fr": ["La qualité de l'eauLa qualité de l'eau", "Grands Lacs", "Tendances", "Statut", "Nutriments", "Pesticides", "Métaux", "Substances toxiques", "Plan de gestion des produits chimiques", "Produits chimiques de préoccupations mutuelles", "écosystème", "Transfrontalier", "Les ions majeurs", "Monitoring", "Surveillance", "Environnement", "Lac Huron", "Lac Ontario", "Lac Érié", "Lac Supérieur", "Ontario"], "en": ["Water quality", "Water quality", "Great Lakes", "Trends", "Status", "Nutrients", "Pesticides", "Metals", "Toxics", "Chemicals Management Plan", "Chemicals of mutual concern", "Ecosystem", "Transboundary", "Major ions", "Monitoring", "Surveillance", "Environment", "Lake Huron", "Lake Ontario", "Lake Erie", "Lake Superior", "Ontario"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Données de surveillance et de monitoring de l'eau des Grands Lacs
update_frequency as_needed