ECWP Highly Vulnerable Aquifers

The HVA layer was developed to satisfy requirements of the Source Protection Plan for the Credit Valley, Toronto and Region and Central Lake Ontario region (CTC-SPC 2015) under the Clean Water Act (2006). Here aquifers are defined as water-bearing permeable rock, fractures within rocks, or loose materials (such as gravel, sand, or silt). Vulnerability of aquifers is considered to be related to the depth to aquifer, soil type and thickness to provide an indication of the potential protection provided by materials above the aquifer (CTC-SPC 2015). Details of the methodology used to develop this layer can be found in CTC-SPC (2015).

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Additional Info

Field Value
Last Updated August 15, 2026, 07:15 (UTC)
Created May 19, 2026, 16:32 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Title
Title for the Dataset.
ECWP Highly Vulnerable Aquifers
Description
A description of the dataset.

The HVA layer was developed to satisfy requirements of the Source Protection Plan for the Credit Valley, Toronto and Region and Central Lake Ontario region (CTC-SPC 2015) under the Clean Water Act (2006). Here aquifers are defined as water-bearing permeable rock, fractures within rocks, or loose materials (such as gravel, sand, or silt). Vulnerability of aquifers is considered to be related to the depth to aquifer, soil type and thickness to provide an indication of the potential protection provided by materials above the aquifer (CTC-SPC 2015). Details of the methodology used to develop this layer can be found in CTC-SPC (2015).
Tags / Keywords
Keywords/tags categorizing the dataset.
Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
Dataset Size
Dataset size in megabytes.
232.0
Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
Published Date
Published date of the dataset.
2022-01-07
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.
Toronto and Region Conservation Authority (TRCA) Open Data Licence v1.0 - Toronto and Region Conservation Authority (TRCA)
Limits on use
Limits on use of data.
Location
Location of the dataset.
https://trca-camaps.opendata.arcgis.com/datasets/camaps::ecwp-highly-vulnerable-aquifers-1
Data Service
Data service for accessing a dataset.
Owner
Owner of the dataset.
trca_d.macleod
Contact Point
Who to contact regarding access?
Conservation Ontario
Contact Point Email
The email to contact regarding access?
[email protected]
Publisher
Publisher of the dataset.
Conservation Ontario
Publisher Email
Email of the publisher.
Author
Author of the dataset.
trca_d.macleod
Author Email
Email of the author.
Accessed At
Date the data and metadata was accessed.
2025-08-08
Field Value
Identifier
Unique identifier for the dataset.
053caf8893494beba4aa95320aa58f22
Language
Language(s) of the dataset
English
Link to dataset description
A URL to an external document describing the dataset.
https://trca-camaps.opendata.arcgis.com/datasets/camaps::ecwp-highly-vulnerable-aquifers-1
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
Version notes about the dataset.
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.
Conservation Ontario
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.
193
Number of data columns
If tabular dataset, total number of unique columns.
6
Number of data cells
If tabular dataset, total number of cells with data.
1158
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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