Great Lakes Basin Integrated Nutrient Dataset (2000-2019)

The Great Lakes Basin Integrated Nutrient Dataset compiles and standardizes phosphorus, nitrogen, and suspended solids data collected between the 2000-2019 water years from multiple Canadian and American sources around the Great Lakes. Ultimately, the goal is to enable regional nutrient data analysis within the Great Lakes Basin. This data is not directly used in the Water Quality Monitoring and Surveillance Division tributary load calculations. Data processing steps include standardizing data column and nutrient names, date-time conversion to Universal Time Coordinates, normalizing concentration units to milligram per liter, and reporting all phosphorus and nitrogen compounds 'as phosphorus' or 'as nitrogen'. Data sources include the Environment and Climate Change Canada National Long-term Water Quality Monitoring Data (WQMS), the Provincial (Stream) Water Quality Monitoring Network (PWQMN) of the Ontario Ministry of the Environment, the Grand River Conservation Authority (GRCA) water quality data, and Heidelberg University’s National Center for Water Quality Research (NCWQR) Tributary Loading Program.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 19:56 (UTC)
Created	April 17, 2026, 19:56 (UTC)
contact_email	open-overt@tbs-sct.gc.ca
contact_person	{}
criticality_level	[]
data_dictionary	[]
geographic_scope	["0"]
open_canada_collection	primary
open_canada_date_published	2019-12-18 00:00:00
open_canada_keywords	{"fr": ["nutriments", "phosphore", "azote", "turbidité", "sédiments en suspension", "intégré", "harmonisé", "standardisé", "concentration", "qualitéde l’eau", "rivière", "ruisseau", "bassin versant", "bassin hydrographique", "Qualité de l'eau", "grands lacs", "canada", "états-unis", "amérique du nord", "lac erié", "lac huron", "lac saint clair", "rivière grand", "rivière thames", "lacontario", "lac supérieur"], "en": ["nutrients", "phosphorus", "nitrogen", "nitrite", "nitrate", "ammonia", "turbidity", "suspended solids", "integrated", "standardized", "concentration", "water quality", "river", "stream", "watershed", "catchment", "basin", "Water quality", "great lakes", "canada", "united states", "north america", "lake erie", "lake huron", "lake st. clair", "grand river", "thames river", "lakeontario", "lake superior"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Jeu de données intégré des nutriments dans les bassins versants des Grands Lacs (2000-2019)
update_frequency	as_needed