Datasets
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Multi-Watershed Nutrient Study
Ministry: Environment, Conservation and Parks
The Multi-Watershed Nutrient Study collected stream water samples from 11 small agricultural watersheds between 2014 and 2020. Samples were collected during flow events like...Resource formats:
- ZIP
- CSV
- SHP
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Lake Water Quality at Drinking Water Intakes
Ministry: Environment, Conservation and Parks
This data set includes information on sampling locations, water chemistry and chlorophyll collected at 18 locations in the Great Lakes-St. Lawrence River and 4 locations in Lake...Resource formats:
- XLSX
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Drinking Water Surveillance Program
Ministry: Environment, Conservation and Parks
The Drinking Water Surveillance Program (DWSP) monitors water quality at selected municipal drinking water systems for scientific and research purposes. DWSP is a voluntary...Resource formats:
- ZIP
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Permit to Take Water
Ministry: Environment, Conservation and Parks
Companies or organizations who take over 50,000 litres of water/day from a lake, river, stream or groundwater source, must obtain a Permit to Take Water from the Ministry of the...Resource formats:
- SHP
- XLS
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Lake Ontario Downstream Tributary Water Chemistry Monitoring
Ministry: Environment, Conservation and Parks
From 2018 to 2023, ministry staff collected water quality samples year-round from seven rivers that flow into Lake Ontario in the Greater Toronto Area. They did this to...Resource formats:
- XLSX
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Pesticide Concentrations in Stream Water
Ministry: Environment, Conservation and Parks
This dataset contains measurements of pesticide concentrations in stream water samples collected at selected streams in Ontario. The Ministry of the Environment, Conservation...Resource formats:
- CSV
- XLSX
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Greenhouse Gas Emissions Reporting By Facility
Ministry: Environment, Conservation and Parks
The Ministry of the Environment, Conservation and Parks collects greenhouse gas emissions data from regulated facilities under Ontario Regulation 390/18: Greenhouse Gas...Resource formats:
- CSV
- XLS
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Lake Simcoe Monitoring
Ministry: Environment, Conservation and Parks
The Lake Simcoe lake monitoring program provides measurements of chemical and physical water quality limits such as total phosphorus, nitrogen, chlorophyll a, pH, alkalinity,...Resource formats:
- ZIP
- SHP
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Industrial Wastewater Discharges
Ministry: Environment, Conservation and Parks
Industrial wastewater monitoring data submitted quarterly to the Ministry of the Environment. This reporting is required by the Effluent Monitoring and Effluent Limits...Resource formats:
- XLS
- XLSX
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Provincial Groundwater Monitoring Network
Ministry: Environment, Conservation and Parks
The Provincial Groundwater Monitoring Network (PGMN) datasets report on ambient (baseline) groundwater level and chemistry conditions. Groundwater monitoring mapResource formats:
- SHP
- ZIP
- XLSX
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Inland Waters Lakes and Streams – Biological Communities
Ministry: Environment, Conservation and Parks
This dataset includes information on biological communities in lakes and streams across Ontario since 1976. Biological communities sampled include: crayfish Data were...Resource formats:
- CSV
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Environmental Compliance Reports
Ministry: Environment, Conservation and Parks
Every year, the Ministry of the Environment Conservation and Parks publicly releases the Environmental Compliance Report on the Ontario Data Catalogue. In Ontario, all...Resource formats:
- CSV
- XLSX
- ZIP
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Licensed Well Contractors
Ministry: Environment, Conservation and Parks
Directory of Licensed Well Contractors This directory lists all well contractors licensed in Ontario. Listings in the directory should not be taken as advice or a...Resource formats:
- CSV
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Well Records
Ministry: Environment, Conservation and Parks
This dataset provides information submitted by well contractors as prescribed by Regulation 903, and is stored in the Water Well Information System (WWIS). Spatial information...Resource formats:
- ZIP
- SHP
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Petroleum Crown Lake Grid
Ministry: Natural Resources and Forestry
This information is used to manage oil and gas rights on offshore Crown lands in Ontario. A grid system of blocks and tracts is used to divide the area. 1 block = 5 minute...Resource formats:
- WEB
- DOCX
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Ontario Road Network: Road Net Element
Ministry: Natural Resources and Forestry
The ORN is a provincewide geographic database of over 250,000 kilometres of municipal roads, provincial highways, and resource and recreational roads. The ORN is the...Resource formats:
- WEB
- DOCX
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Ontario radar digital surface model
Ministry: Natural Resources and Forestry
The Ontario Radar Digital Surface Model (DSM) has the following features: source data: 1 arc second spaceborne C-Band Interferometric Synthetic Aperture Radar (IFSAR) data...Resource formats:
- WEB
- ZIP
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Ontario provincial land cover 1996 - 28 classes
Ministry: Natural Resources and Forestry
This data was produced in 1999 by rationalizing a 48-class database into 28 distinct classes. The original database was derived from digital, multispectral Landsat Thematic...Resource formats:
- WEB
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Ontario Integrated Hydrology (OIH) data
Ministry: Natural Resources and Forestry
Ontario Integrated Hydrology (OIH) data is used to generate watersheds and support provincial-scale hydrology applications including: watershed generation hydrologic modelling...Resource formats:
- WEB
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Ontario Hydro Network - Watercourse
Ministry: Natural Resources and Forestry
Watercourses are line features - natural or manmade - that represent the location of flowing surface water. This product requires the use of geographic information system (GIS)...Resource formats:
- WEB
- DOCX