TRCA 2020 Water Quality Data from Regional ...


The data represent stream water quality conditions sampled throughout TRCA's Regional Watershed Monitoring Program.

"Dataset contains water quality results from samples collected throughout the TRCA's 9 watersheds for the year specified in the Dataset Name. Data includes station name and location, sample date, water quality parameter name and the final value returned from the laboratory conducting the analysis. Units of measure and the Agency/Lab providing the analysis is also included.

Monthly samples were collected using in-stream “grab” techniques following the Provincial Water Quality Monitoring Network (PWQMN) protocol (Ministry of the Environment, Conservation and Parks 2020) and also included in-situ measurements (e.g. water temperature, pH and dissolved oxygen) collected using a hand-held water quality multi-probe (YSI or ProDSS). Water quality samples were collected throughout the year, typically in the third week of each month, irrespective of precipitation. Samples from the 13 stations that are part of the PWQMN partnership were submitted to the MECP Rexdale Laboratory. The remaining samples from stations or months not included in the PWQMN (e.g. December to March) were submitted to the City of Toronto Dee Avenue Laboratory in order to augment water quality data from these stations, and to maintain a year-round dataset."

This resource view is not available at the moment. Click here for more information.

Download resource

Data Dictionary

Column Type Label Description
StationID numeric
ShortName numeric
TRCA_StationID text
StationMapName numeric
Watershed text
UTMNorthing numeric
UTMEasting numeric
UTMDatum text
Result_Date timestamp
Year numeric
Month numeric
Day numeric
ParameterDefinitionName text
ParameterGroup text
FinalValue numeric
FinalUnits text
Result_Qualifier text
DuplicateCode text
Agency_Name text
Update_Date timestamp
MSTECH_Code text
LabComments text
General_Notes text
Update_Notes text

Additional Information

Field Value
Data last updated May 6, 2021
Metadata last updated unknown
Created unknown
Format CSV
License Toronto and Region Conservation Open Data License V1.0
Created4 months ago
Media typetext/csv
datastore activeTrue
has viewsTrue
last modified4 months ago
on same domainTrue
package id34af5f26-86e1-4bd0-a70f-c7863360dd63
revision ida4e599e9-d6f0-42fb-80ba-477a89b41c4c
url typeupload