Datasets
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List of Licensed Laboratories
Ministry: Environment, Conservation and Parks
This is a list of licensed and out-of-province eligible laboratories that can test Ontario drinking water. Prior to submitting samples, please contact the licensed laboratory to...Resource formats:
- CSV
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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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Licensed Toxics Planners
Ministry: Environment, Conservation and Parks
Data contains toxics planner's license number, expiration date, name, contact information and location. Proposed Changes to the Toxic Reduction Program We are proposing...Resource formats:
- XLSX
- CSV
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Large Landfill Sites (Historical data)
Ministry: Environment, Conservation and Parks
Data with the following information for large landfills: landfill capacity fill rates estimated remaining capacity engineering designs reporting and monitoring details This...Resource formats:
- XLS
- CSV
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Landfill Gas Collection, Use and Destruction
Ministry: Environment, Conservation and Parks
This dataset provides a summary of information reported by landfills regarding their landfill gas collection (LFG), methane destruction and/or use, and associated emission...Resource formats:
- XLSX
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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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Lake St Clair Water Quality
Ministry: Environment, Conservation and Parks
This dataset provides water quality analyses of lake surface samples and river samples collected throughout the ice-free season (May/June to October) from 2016 to 2019 from the...Resource formats:
- CSV
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Lake Simcoe Protection Act Watershed Boundary
Ministry: Environment, Conservation and Parks
This boundary is used in the management of watershed-based planning by the Lake Simcoe Region Conservation Authority (LSRCA). It is used to support the Lake Simcoe Protection...Resource formats:
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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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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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Jackfish Bay Area of Concern in Recovery – Water and Sediment Chemistry
Ministry: Environment, Conservation and Parks
In 2017, the Ministry of Environment, Conservation, and Parks collected water and sediment from the Jackfish Bay ‘Area of Concern in Recovery’ study area, which included...Resource formats:
- CSV
- 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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Inland Lakes and Streams – Water Chemistry
Ministry: Environment, Conservation and Parks
This data set includes information on water quality of lakes and streams across Ontario since 1976. It includes: major anions and cations nutrients chlorophyll metals Data...Resource formats:
- ZIP
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Inland Lakes and Streams – Physical Conditions
Ministry: Environment, Conservation and Parks
Data on physical conditions in Ontario’s lakes and streams: For lakes this includes measurements such as temperature, dissolved oxygen levels and water transparency, ice dates,...Resource formats:
- ZIP
- XLSX
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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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Hazardous Waste Public Information
Ministry: Environment, Conservation and Parks
This hazardous waste dataset contains spatial information about generators, carriers and receivers of hazardous and liquid industrial waste. Also contains the volumes and...Resource formats:
- ZIP
- CSV
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Hamilton Harbour Area of Concern (AOC) Monitoring
Ministry: Environment, Conservation and Parks
Dataset includes 8 water quality surveys conducted between May and September 2021 at 4 stations in Hamilton Harbour by the Ontario Ministry of the Environment, Conservation and...Resource formats:
- XLSX
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Guide to Eating Ontario Fish: Advisory Database
Ministry: Environment, Conservation and Parks
Fish consumption advisories for Ontario's lakes and rivers are available in the Guide to Eating Ontario Fish. The zip file below includes a GIS shapefile of all lake/river...Resource formats:
- SHP
- CSV
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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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Greenhouse Gas Emissions by Sector
Ministry: Environment, Conservation and Parks
The data sets show historical greenhouse gas emissions and emission changes for selected years, in megatonnes of CO2 equivalent. Historical estimates are based on Environment...Resource formats:
- ZIP