TRCA 2019 WQ Data - RWMP Sites.csv


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.

Further information on the data collected and the protocols used is available from

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Data Dictionary

Column Type Label Description
StationID text
ShortName text
TRCA_StationID text
StationMapName text
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
MSTECH_Code text
LabComments text

Additional Information

Field Value
Data last updated May 6, 2020
Metadata last updated unknown
Created unknown
Format CSV
License Toronto and Region Conservation Open Data License V1.0
Created3 months ago
Media typetext/csv
datastore activeTrue
has viewsTrue
last modified3 months ago
on same domainTrue
package id10d629a9-21cf-4b65-ba04-02cff899efa3
revision id21b375d7-3110-4d40-9901-712b170e7161
url typeupload