Datasets
Search for specific datasets or use filters to explore our data.
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Tables of Drinking Water Threats
Ministry: Environment, Conservation and Parks
We've made tables that include the 21 drinking water quality threat activities, set out in O. Reg. 287/07, which may pose a risk to a municipal drinking water supply. The...Resource formats:
- XLSX
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Ontario Hydro Network - Watercourse
Ministry: Natural Resources
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
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Office of the Registrar General Annual Report
Ministry: Public and Business Service Delivery and Procurement
The Office of the Registrar General (ORG), under the Ministry of Public and Business Service Delivery and Procurement, is dedicated to delivering secure, accurate and accessible...Resource formats:
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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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Ontario Typical Range Soil Chemistry
Ministry: Environment, Conservation and Parks
Concentration levels from soil sampled in urban and rural parklands in the province. Data includes: station name and location (rounded to 1 km precision) sample date results...Resource formats:
- SHP
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Ontario radar digital surface model
Ministry: Natural Resources
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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Oak Ridges Moraine: planning area
Ministry: Municipal Affairs and Housing
This dataset was created to establish a permanent boundary. Lands within this boundary are subject to the principles contained in the Oak Ridges Moraine Legislation. Boundary is...Resource formats:
- DOCX
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Agreement Forest Area
Ministry: Natural Resources
An Agreement Forest Area is a polygon feature that identifies an area of forested private land governed by a Forest Management Agreement. Private companies have agreed, through...Resource formats:
- SHP
- DOCX
- dBase
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Niagara Escarpment Plan policy area
Ministry: Natural Resources
The Niagara Escarpment Special Policy Area is comprised of the North Aldershot Policy Area and the Waterdown Policy Area. More informationResource formats:
- WEB
- DOCX
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Petroleum Crown Lake Grid
Ministry: Natural Resources
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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Official airports
Ministry: Natural Resources
This layer is derived from data provided from Nav Canada. Where possible, it is spatially aligned with Ontario land parcel layers. Data is continually updated. This layer should...Resource formats:
- WEB
- DOCX
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Ontario Elevation Data Index
Ministry: Natural Resources
Elevation data is the representation of the height of the ground at a location on earth. This data allows users to discover the extent of elevation products, and the metadata...Resource formats:
- WEB
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Provincial Watersheds, Historical
Ministry: Natural Resources
Note: This data has been replaced by the Ontario Watershed Boundaries (OWB). We are no longer updating this data. It is best suited for historical research and analysis. A...Resource formats:
- ZIP
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Oak Ridges Moraine: land use designations
Ministry: Municipal Affairs and Housing
This dataset was created to provide land use information on the Oak Ridges Moraine and is the basis for Ontario Regulation 140/02. The data was digitized at 1:10,000 or better...Resource formats:
- DOCX
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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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Water systems that sought regulatory relief due to COVID-19 pandemic
Ministry: Environment, Conservation and Parks
Ministry of the Environment, Conservation and Parks allowed temporary system-specific regulatory relief to address challenges posed by the pandemic such as operational...Resource formats:
- CSV
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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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Caribou Range Boundary
Ministry: Environment, Conservation and Parks
Shows areas where the health and prevalence of caribou can be linked to the attributes of the land that supports them. Ontario's Woodland Caribou Recovery Strategy (2008)...Resource formats:
- SHP
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Forest Insect Damage Event
Ministry: Natural Resources
Shows areas where forest insect pests have damaged or killed trees by defoliation, foliage mining and wood boring. Tree mortality rarely occurs as the result of one year's...Resource formats:
- WEB
- DOCX
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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