The Source Protection Information Atlas enables anyone to determine if an address is within a Source Protection Vulnerable Area. The map displays over 20 layers of Source Protection data for Ontario. The map uses a ESRI_GEOCORTEX API (Application Programming Interface). There are 4 vulnerable area types that surround municipal water supplies: Wellhead Protection Areas, Intake Protection Zones, Significant Groundwater Recharge Areas and Highly Vulnerable Aquifers. For details on the assessment reports and plans that contain definitions of these zones please click on one of these links. For access to the raw data contact the Conservation Authority for the jurisdiction you are interested in.

Additional Documentation

Source Protection Plans

WHPA fact sheet

IPZ fact sheet

HVA fact sheet

The layers displayed on the map are:

Source Protection Area (SPA) area boundaries Municipal Boundaries (Upper and Lower Tier) Lots and Concession Boundaries Intake Protection Zones (IPZ 1, 2 and 3) Event Based Areas and related Event Type Surface Water Vulnerability Scores (range of 0.1 to 10) Wellhead Protection Areas (A, B, C, D, E (GUDI)) Groundwater Vulnerability Scores (2,4,6,8,10) WHPA E (GUDI) vulnerability scores Issue Contributing Areas and their related contaminant (issue) Significant Groundwater Recharge Areas (SGRA) and scores (2,4 6) Highly Vulnerable Aquifers (HVA) Niagara Escarpment Development Control Area Oak Ridges Moraine Plan Boundary Satellite Imagery ESRI – Topographic/road Map

Under the source protection program, 19 source protection committees worked with conservation authorities and municipalities across Ontario to assess the vulnerability of sources of municipal drinking water. These assessments were documented in 38 local assessment reports that were approved by the ministry. The data collected from these reports form the foundation for the Source Water Protection Mapping Tool.

This interactive map allows you to search for a location in Ontario and determine if it is in a Source Protection vulnerable area. The map will show the location information, vulnerable zone type and score, as well as provide link(s) to local source protection plans where you can find the policies associated with the search location.

Searches can be performed by street address, geographic coordinates or several other search options listed in the help. Confirm the location by using the satellite imagery. Please note that searches by geographic coordinates (Lat. and Long) will return the most accurate results. Searches performed with a street address, postal code, municipality, lot, concession or township may require you to further refine the location by moving the pin to the accurate location based on your knowledge of the site. Please refer to the help (Primary Navigation Pane) for tips on searching, and the proper syntax of your searches.

Questions? If you have any questions on how to use the map, or are unable to find a location, contact the Source Protection Program by email at source.protection@ontario.ca.

For more information about the Source Protection program see our web site at Source Protection.

For additional information about your local source protection plan contact your Conservation Authority: Source Protection Plans and Resources.

Status

On going: Data is continually being updated

Maintenance and Update Frequency

Not stated

Contact

Derek Hatfield, Information Management Lead/Coordinator, Conservation Source Protection Branch, Ministry of the Environment, Conservation, and Parks, derek.hatfield@ontario.ca

The data contains the following mapping layers from the Oak Ridges Moraine Conservation Plan: * Oak Ridges Moraine Conservation Plan outer boundary * Oak Ridges Moraine Conservation Plan designations, including: * natural core area * natural linkage area * countryside area * rural settlement * Palgrave Estates residential community * settlement area The data also contains associated policy designation mapping.

The Contemporary Mapping of Watercourses dataset is a surface water inventory created in partnership and jointly owned by the Niagara Peninsula Conservation Authority and the Niagara Region. The dataset currently corresponds to the extent of the Regional Municipality of Niagara until such a time that NPCA can complete interpretation and development of the inventory throughout its watershed jurisdiction (large scale source geometry exists). The objective of this dataset is to provide a large scale (1:2000) inventory of hydrographic mapping of sufficient detail to support hydrology characterization work at a level that accounts for the influences of significant watercourse features, such as tile drains, municipal drains, roads and culverts, which exert a controlling influence on overland and near sub-surface flows. The Contemporary Mapping of Watercourses feature class is developed from hydrologically coded break lines (select point density) from a photogrammetric digital terrain model (2010 and 2013) that collectively provide a detailed representation of the drainage of the landscape. Each surface water segment is imbedded with information characterizing the physical and technical attributes associated with that hydrographic feature aiming to inform water resources management activities. Further, the Contemporary Mapping of Watercourses dataset provides a spatial framework with which to organize, manage and maintain Niagara’s hydrologic data.

This data contains location information for 1 of Ontario’s snow monitoring networks: * Surface Water Monitoring Centre (SWMC) Snow course data is collected by: * conservation authorities * Ontario Power Generation * Ministry of Natural Resources (MNR) districts Data is collected twice a month from November 15 until May 15. The Surface Water Monitoring Centre uses this data to assess: * current snow cover * frozen ground conditions * snowpack * potential snowmelt * contributions to streamflow The snow data is located in a corporate water and climate database. This data helps MNR and conservation authorities assess the potential for flood at the local and provincial scale.

The Ontario Parcel is commercially licensed data with restricted usage.The parcels are managed by the Municipal Property Assessment Corporation (assessment), Teranet Enterprises Inc. (ownership), and the Ontario Government (Crown lands). The Ontario Parcel dataset is a source of assessment, ownership and Crown parcel mapping that can be used for assessment, taxation, land title/registration, as well as land use management and business planning.The Ontario Parcel (OP) consists of three data classes in geodatabase format and supporting information in CAD format:Assessment ParcelOwnership ParcelCrown ParcelOntario Parcel - Supporting Information (CAD format).See Ontario Parcel Guide (coming soon) for a comparison of the products. Public viewing of the standard Ontario Parcel - Assessment Parcel is available through the following web applications:Make a Topographic MapMake a Map: Natural Heritage AreasAgricultural Information Atlas (AgMaps).Licence EligibilityThe Ontario Parcel licensed through LIO is for non-commercial use. To receive data from Land Information Ontario (LIO), the organization must be eligible and sign an Ontario Parcel licensing agreement (MNRF General List User Licence Agreement).Eligible to apply: all Ontario ministries; agencies, boards and commissions; Indigenous communities; conservation authorities; non-profit organizations and others.Ontario Parcel data is available at no cost to those eligible to receive the data. Eligible organizations should contact Ontario Parcel at ontarioparcel@ontario.ca.Corporations and for-profit entities should contact:Municipal Property Assessment Corporation (MPAC)Teranet Enterprises, Inc. - Ontario ParcelTerms of UseOntario Parcel geometry represents an index of property locations, not a legal representation of property boundaries.Ontario Parcel is an indication that a boundary may be in the general area.The data should not be used for legal purposes. The data should not be used to define boundaries on the ground or be relied on to calculate areas of properties (unless for crude estimates) or depths or frontages of lots. The data is not a substitute for a legal survey and should not be used for applications that require accurate positional data.Additional DocumentationOntario Parcel FAQ (PDF)Assessment Parcel - Data Description (PDF)Assessment Parcel - Documentation (Word)Crown Parcel - Data Description (PDF)Crown Parcel - Documentation (Word)Ownership Parcel - Data Description (PDF)Ownership Parcel - Documentation (Word)StatusOn going: data is being continually updatedMaintenance and Update FrequencyFortnightly: data is updated every two weeksContactOntario Parcel, ontarioparcel@ontario.ca

The Provincial Groundwater Monitoring Network (PGMN) is a partnership program between the Ontario Ministry of the Environment, Conservation and Parks and the province’s Conservation Authorities, as well as some municipalities in areas not covered by a Conservation Authority. There are almost 400 wells monitored across the province. The PGMN program began in 2000 and is designed to monitor ambient groundwater level and chemistry conditions across Ontario. Toronto and Region Conservation Authority (TRCA) is responsible for maintaining the digital telemetry systems at 21 monitoring wells in our jurisdiction, collecting water level data and arranging for chemical analyses of water quality samples at dedicated wells. This dataset includes water level observations for PGMN monitoring wells located within TRCA’s jurisdiction, including: seven wells in the Oak Ridges Moraine Aquifer Complex, five in the Thorncliffe Formation, six in the Scarborough Formation, one in the Lower Newmarket Till, and one in a bedrock unit. Wells are identified by PGMN Well No., coordinates, and aquifer.

The Ontario Classified Point Cloud (Imagery-Derived) is a classified elevation point cloud based on aerial photography. The point cloud is structured in non-overlapping 1 km by 1 km tiles in a compressed format. The following classification codes are applied to the data: * unclassified * ground * low noise This data is for geospatial tech specialists, and is used by government, municipalities, conservation authorities and the private sector for land use planning and environmental analysis. Related data: Raster derivatives have been created from the point clouds for some imagery projects. These products may meet your needs and are available for direct download. For a representation of bare earth, see the Ontario Digital Elevation Model (Imagery-Derived). For a model representing all surface features, see the Ontario Digital Surface Model (Imagery-Derived).

The Ontario Raw Point Cloud (Imagery-Derived) is elevation point cloud data created from aerial photography from the Geospatial Ontario (GEO) imagery program. It was created using a pixel-autocorrelation process based on aerial photography collected by the imagery contractor for the GEO imagery program. The dataset consists of overlapping tiles in LAZ format and is 6.29 terabytes in size. Tiles are overlapping because the pixel-autocorrelation process extracts elevation values from overlapping stereo photo strips. No classification has been applied to the point cloud, however they are encoded with colour (RGB) values from the source photography. This data is for geospatial tech specialists, and is used by government, municipalities, conservation authorities and the private sector for land use planning and environmental analysis. Related data For a product in non-overlapping tiles with a ground classification applied, see the Ontario Classified Point Cloud (Imagery-Derived). Raster derivatives have been created from the point clouds for some imagery projects. These products may meet your needs and are available for direct download. For a representation of bare earth, see Ontario Digital Elevation Model (Imagery-Derived). For a model representing all surface features, see the Ontario Digital Surface Model (Imagery-Derived).

The Contemporary Mapping of Watercourses dataset is a surface water inventory created in partnership and jointly owned by the Niagara Peninsula Conservation Authority and the Niagara Region. The dataset currently corresponds to the extent of the Regional Municipality of Niagara until such a time that NPCA can complete interpretation and development of the inventory throughout its watershed jurisdiction (large scale source geometry exists). The objective of this dataset is to provide a large scale (1:2000) inventory of hydrographic mapping of sufficient detail to support hydrology characterization work at a level that accounts for the influences of significant watercourse features, such as tile drains, municipal drains, roads and culverts, which exert a controlling influence on overland and near sub-surface flows. The Contemporary Mapping of Watercourses feature class is developed from hydrologically coded break lines (select point density) from a photogrammetric digital terrain model (2010 and 2013) that collectively provide a detailed representation of the drainage of the landscape. Each surface water segment is imbedded with information characterizing the physical and technical attributes associated with that hydrographic feature aiming to inform water resources management activities. Further, the Contemporary Mapping of Watercourses dataset provides a spatial framework with which to organize, manage and maintain Niagara’s hydrologic data.

The Provincial (Stream) Water Quality Monitoring Network (PWQMN) measures water quality in rivers and streams across Ontario.Over 400 locations are currently monitored in partnership with Ontario's Conservation Authorities, participating municipalities and provincial parks.Partners collect water samples on an approximately monthly basis and deliver them to the Ministry's laboratory where they are analyzed for a suite of water quality indicators. The program has been operating since 1964 providing a valuable database for tracking changes in water quality over time. More recently, special studies have been implemented in agricultural and urban watersheds to collect additional information in support of source protection planning and nutrient, road salts and pesticides management.

This feature class depicts the allowance/setback applied to top-of-slope features associated with defining valleylands regulated by the Authority as the Apparent Valley Riverine Erosion Hazard under the Generic Regulation of the Conservation Authorities Act known as Ontario Regulation 97/04. A 15 metre setback was applied in the form of a buffer to these top of slope features for regulation mapping purposes regardless of their stability status since it was determined that there was not an accurate enough method of predicting stable tops via desktop analysis that the Authority would be confident defending other than a proper geotechnical review. The purpose of the allowance generated as part of the regulation mapping is to identify lands adjacent to the actaul hazard feature that are potentially prone to erosion so actual setbacks may differ as a result of the review process depending on the stability of the slope and site specific circumstances.

This vector layer is an extraction of only the "Woodbridge" flood vulnerable cluster from "Humber_FVA_NEWNAME_2020" for labelling purposes on map products. Regulatory (Regional storm) floodplain for flood vulnerable areas (clusters) within the Humber River watershed developed during various phases of floodplain mapping in the watershed; the quantification of flood risk was undertaken by IBI Group in 2019. Reports for floodplain mapping and flood risk assessment can be accessed here: https://trca.ca/conservation/flood-risk-management/defining-flood-risk/