Water Quality – Baseline Surface Water Monitoring Program - 1998-2025

Water Quality – Baseline Surface Water Monitoring Program Water Quality in Ottawa’s Rivers and Streams is monitored by the City of Ottawa’s Stormwater Management Services to provide up-to-date information on the condition of Ottawa’s surface water resources. 

Accuracy: n/a 

Update Frequency: Annually 

Attributes:
Data 

  • Sampling Point – The code for the specific sampling site. See the “Sample Point Key” for more information regarding site locations. 
  • Depth – The depth that the sample was taken at 
  • Date Sampled – The day the sample was taken 
  • Parameter – The specific parameter that was tested 
  • Result – The numeric result of the test 
  • Flag – A field that provides information about the result. See the “Flag Key” for more information. 
  • Unit – The method of measurement of the result. See the “Units Key” for more information. 
  • RDL – The Reported Detection Limit 
  • Project – The project number 
Sample Point Key 
  • Sampling Point – The code that corresponds to the sampling point field in the dataset 
  • Description – A description of the location of the sampling site 
  • Easting – The easting in MTM Zone 9, NAD83 (CSRS) of the site 
  • Northing – The northing in MTM Zone 9, NAD83 (CSRS) of the site  
Units Key 
  • Unit_Type – The type of unit specified in the unit field in the dataset 
  • Description – Describes the unit type.
Flags Key
  • Flag Key  – A code that corresponds to the flag field in the dataset 
  • Description – A description of the flag related to the test result.
  • AI - Spike recovery failure. Analytical interference suspected
  • B3 - Analytical blank > 3 times and < 10 times undiluted RDL
  • B10 - Analytical blank > 10 times undiluted RDL
  • D - Duplicate difference higher than desired. Possibly due to lack of sample homogeneity
  • E - Indicated concentration is estimated
  • F - Calibration check failure; result suspect
  • HT - Analytical hold time exceeded
  • RM - Reference material result outside desired range
  • SC - Test was Subcontracted
  • < - Result is less than the indicated concentration
  • > - Result is greater than the indicated concentration
  • 3X - Analytical blank > 3 times and < 10 times undiluted RDL
  • 10X - Analytical blank > 10 times undiluted RDL.
Contact: Corey Van Es, Greg Chapman

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Additional Info

Field Value
Last Updated August 26, 2026, 07:11 (UTC)
Created March 24, 2026, 20:41 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Title
Title for the Dataset.
Water Quality – Baseline Surface Water Monitoring Program - 1998-2025
Description
A description of the dataset.

Water Quality – Baseline Surface Water Monitoring Program Water Quality in Ottawa’s Rivers and Streams is monitored by the City of Ottawa’s Stormwater Management Services to provide up-to-date information on the condition of Ottawa’s surface water resources. 

Accuracy: n/a 

Update Frequency: Annually 

Attributes:
Data 

  • Sampling Point – The code for the specific sampling site. See the “Sample Point Key” for more information regarding site locations. 
  • Depth – The depth that the sample was taken at 
  • Date Sampled – The day the sample was taken 
  • Parameter – The specific parameter that was tested 
  • Result – The numeric result of the test 
  • Flag – A field that provides information about the result. See the “Flag Key” for more information. 
  • Unit – The method of measurement of the result. See the “Units Key” for more information. 
  • RDL – The Reported Detection Limit 
  • Project – The project number 
Sample Point Key 
  • Sampling Point – The code that corresponds to the sampling point field in the dataset 
  • Description – A description of the location of the sampling site 
  • Easting – The easting in MTM Zone 9, NAD83 (CSRS) of the site 
  • Northing – The northing in MTM Zone 9, NAD83 (CSRS) of the site  
Units Key 
  • Unit_Type – The type of unit specified in the unit field in the dataset 
  • Description – Describes the unit type.
Flags Key
  • Flag Key  – A code that corresponds to the flag field in the dataset 
  • Description – A description of the flag related to the test result.
  • AI - Spike recovery failure. Analytical interference suspected
  • B3 - Analytical blank > 3 times and < 10 times undiluted RDL
  • B10 - Analytical blank > 10 times undiluted RDL
  • D - Duplicate difference higher than desired. Possibly due to lack of sample homogeneity
  • E - Indicated concentration is estimated
  • F - Calibration check failure; result suspect
  • HT - Analytical hold time exceeded
  • RM - Reference material result outside desired range
  • SC - Test was Subcontracted
  • < - Result is less than the indicated concentration
  • > - Result is greater than the indicated concentration
  • 3X - Analytical blank > 3 times and < 10 times undiluted RDL
  • 10X - Analytical blank > 10 times undiluted RDL.
Contact: Corey Van Es, Greg Chapman

Download note: If you are having problems downloading using Microsoft Edge as your web browser, try disabling the “Open Office files in the browser” option in Settings.

Tags / Keywords
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Format (CSV, XLS, TXT, PDF, etc)
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Dataset Size
Dataset size in megabytes.
47731.29
Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
Published Date
Published date of the dataset.
2019-12-12
Time Period Data Span (start date)
Start date of the data in the dataset.
Time Period Data Span (end date)
End date of time data in the dataset.
GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
Field Value
Access category
Type of access granted for the dataset (open, closed, service, etc).
public
License
License used to access the dataset.
https://ottawa.ca/en/city-hall/get-know-your-city/open-data#open-data-licence-version-2-0
Limits on use
Limits on use of data.
Location
Location of the dataset.
https://od-dev2-ottawa.opendata.arcgis.com/datasets/ottawa::water-quality-baseline-surface-water-monitoring-program-1998-2025
Data Service
Data service for accessing a dataset.
Owner
Owner of the dataset.
[email protected]
Contact Point
Who to contact regarding access?
City of Ottawa
Contact Point Email
The email to contact regarding access?
[email protected]
Publisher
Publisher of the dataset.
City of Ottawa
Publisher Email
Email of the publisher.
Author
Author of the dataset.
[email protected]
Author Email
Email of the author.
Accessed At
Date the data and metadata was accessed.
2026-08-10
Field Value
Identifier
Unique identifier for the dataset.
543ac006b3884a839e724b4b15c54904
Language
Language(s) of the dataset
English
Link to dataset description
A URL to an external document describing the dataset.
https://od-dev2-ottawa.opendata.arcgis.com/datasets/ottawa::water-quality-baseline-surface-water-monitoring-program-1998-2025
Persistent Identifier
Data is identified by a persistent identifier.
Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
Contains data about individuals
Does the data hold data about individuals?
Contains data about identifiable individuals
Does the data hold identifiable data about individual?
Contains Indigenous Data
Does the data hold data about Indigenous communities?
Portal Type
Platform type of the source portal.
Field Value
Version
Version of the datatset
None
Source
Source of the dataset.
None
Version notes
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Is version of another dataset
Link to dataset that it is a version of.
Other versions
Link to datasets that are versions of it.
Provenance Text
Provenance Text of the data.
City of Ottawa
Provenance URL
Provenance URL of the data.
Temporal resolution
Describes how granular the date/time data in the dataset is.
GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
Field Value
Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
Community Permission
Community permission (who gave permission).
The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
Field Value
Number of data rows
If tabular dataset, total number of rows.
Number of data columns
If tabular dataset, total number of unique columns.
Number of data cells
If tabular dataset, total number of cells with data.
Number of data relations
If RDF dataset, total number of triples.
Number of entities
If RDF dataset, total number of entities.
Number of data properties
If RDF dataset, total number of unique properties used by the triples.
Data quality
Describes the quality of the data in the dataset.
Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.

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