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Regional Watershed Monitoring Program Water Quality Data
Water Quality Data from monthly grab samples collected across the Toronto and Region Conservation Authority’s (TRCA) jurisdiction. Samples are collected monthly following the... -
Regional Watershed Monitoring Program Benthic Macroinvertebrate Data, 2013-2021
Dataset provides an overview of the benthic macroinvertebrate communities in lotic systems in TRCA’s jurisdiction for the purposes of biomonitoring and bioassessment. The data... -
TRCA GIS Open Data (ArcGIS Online)
TRCA GIS Open data on ArcGIS online. This link will take you to an external site URL: https://trca-camaps.opendata.arcgis.com/ -
Regional Watershed Monitoring Program Water Temperature Data
This is a water temperature dataset collected from 2001 to 2019 throughout TRCA watersheds as part of the Regional Watershed Monitoring Program (RWMP). Water temperature data... -
Regional Watershed Monitoring Program Fish Community Data
Fish Community records from sites sampled throughout nine watersheds in Toronto and Region Conservation Authority’s (TRCA) jurisdiction. Data is from TRCA's Regional Watershed... -
TRCA Waterfront Fish Data 2000 - 2018
This dataset contains the species fish caught using boat electrofishing along the TRCA Lake Ontario shoreline from 2000 to 2018. The fish are monitored for a variety of reasons... -
Real Time Hydrometeorological Data
Obtain real-time and historic TRCA stream and precipitation gauge time series data. Stream gauge data is measured in 15-minute intervals with water levels (stage) presented in... -
Hydrometric Data Approval and Grade Code Reference Tables
Hydrometeorological data collected by TRCA undergoes a standard review and correction process to ensure all data is of known quality. Data follows a multi-step correction and... -
Streamflow
Stream gauge data from TRCA real time and manual monitoring networks. Data represents preceding 15 minute average discharge (flow) in m3/second. Each file contains full period... -
Hydrology Calibration and Validation Data
Historic storm event data from TRCA monitoring networks for hydrology modelling calibration and validation activities. All timestamps are in Eastern Standard Time. Rainfall is... -
Precipitation
Precipitation gauge data from TRCA real time and manual monitoring networks. Data represents preceding 5 minute total (accumulated) rainfall in mm. Each file contains full... -
Stream Water Level
Stream gauge data from TRCA real time and manual monitoring networks. Data represents preceding 15 minute average water level (stage). Where possible stage is in masl. Each... -
Active TRCA Flood Messages
Get any currently active TRCA Flood Messages. Includes both Riverine Flooding and Lake Ontario Shoreline flood messages. For more information see... -
Event Data - Precipitation Observations - August 7th 2018
This dataset is a packaged set of rainfall data amalgamated together for the August 7, 2018 storm event. It includes preliminary data from the TRCA meteorological gauge network. -
Flood Vulnerable Cluster Data
Flood Vulnerable Cluster Study Results Currently defined as Flood Vulnerable Areas (FVAs) in TRCA’s Living City Policies, Flood Vulnerable Clusters (FVCs) are sub-areas within... -
TRCA Climate Change Projections under RCP8.5 and RCP4.5 (1971-2100)
TRCA Climate Change Projections under RCP8.5 and RCP4.5 (1971-2100) These datasets represent future climate change projections for TRCA. The summary information can be used by...
