Name: Approved Regional Official Plan - Oak Ridges Moraine (ORM) Landuse
Display Field: OGF_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A division of the Oak Ridges Moraine according to actual and permitted use under the Oak Ridges Moraine Conservation Plan Regulation 140/02. These include Natural Core Areas, Natural Linkage Areas, Countryside Areas, and Settlement Areas. Rural Settlements and the Palgrave Estates Residential Community form part of Countryside Areas.</SPAN></P></DIV></DIV></DIV>
Copyright Text: Contains information licensed under the Open Government Licence – Ontario
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 14 0;"><SPAN>This dataset identifies areas with high groundwater levels and/or confined aquifer conditions. These sites may impact any subsufrace works, sepcifically development applications where it may result in geotechnical and hydrogeological work for the applicant, including structural stability and dewatering implications. The Ministry of the Environment, Conservation and Parks (MECP) has requested that Regional staff share this information with development proponents. The Regional Municipality of York shares this information via the development application and review process by issuing a cautionary memo for developments that could potentially need temporary and/or permanent dewatering.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Name: Clean Water Act (CWA) - Highly Vulnerable Aquifers in the Lake Simcoe Region Conservation Authority (LSRCA)
Display Field: NAME
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN>Modified WHPAs for Newmarket/Aurora wells as detailed in the New Regional Official Plan approved by the Province on November 4, 2022.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Adjusted WHPAs to include Aurora Well 7 and remove Newmarket well 14 as detailed in the WHPA update/ Source Protection Plan update approved by the Province on March 2, 2022.</SPAN></P><P><SPAN>Shows areas of influence on the land around a municipal well, the size of which is determined by how quickly water travels underground to the well, measured in years. For source protection planning, the Clean Water Act required that a standard 100 metre radius circle be provided around each municipal well; that is called the WHPA-A. The WHPA-B represents the 2-year time of travel. The WHPA-C represents the 5-year time of travel and the WHPA-D represents the 25-year time of travel.</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN>The shape of the WHPAs is based on numerical hydrogeological modelling results for all of the York Region production wells and are dynamic to some degree, since they can be influenced by a number of factors such as the slope of the land, the depth of the well, and the type of sediment. The maps that this data is based on have supporting reports that discuss their development and are available via the Water Resources group.</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN /></P><P STYLE="margin:7 0 7 0;"><SPAN>Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act)</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN /></P></DIV></DIV></DIV>
Name: Regional Official Plan (ROP), Oak Ridges Moraine (ORM) - Aquifers
Display Field: RATING
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>A representation of aquifers within the Oak Ridges Moraine boundary as identified in the Oak Ridges Moraine Conservation Plan.</SPAN><SPAN>Used in York Region Official Plan – 2010, Office Consolidation Winter 2019.</SPAN></P></DIV></DIV></DIV>
Name: Clean Water Act (CWA) - Highly Vulnerable Aquifers in the Lake Simcoe Region Conservation Authority (LSRCA)
Display Field: SPP_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Highly Vulnerable Aquifers (HVA) are aquifers that are more susceptible to contamination because of their location. In general, an HVA will consist of source granular aquifer materials (e.g. sand and/or gravel) or fractured rock that has a high permeability and is exposed near the ground surface with a relatively shallow water table.</SPAN></P><P><SPAN>This layer is the final version for the SGBLS Drinking Water Vulnerability Assessment Reports (2011) Please refer the contents in the report of LakeSimcoe_Part1_Ch4_RegionalGroundwaterVulnerability.pdf</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Copyright Text: Source: Lake Simcoe Region Conservation Authority
Name: Clean Water Act (CWA) - Highly Vulnerable Aquifers in the Toronto and Region Conservation Authority (TRCA)
Display Field: HVA_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Highly Vulnerable Aquifers of the Toronto & Region Source Protection Authority Highly Vulnerable Aquifers are aquifers that are more susceptible to contamination because of their location. In general, an HVA will consist of source granular aquifer materials (e.g. sand and/or gravel) or fractured rock that has a high permeability and is exposed near the ground surface with a relatively shallow water table.</SPAN></P></DIV></DIV></DIV>
Copyright Text: Source: Toronto and Region Conservation Authority
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Modified VS for Newmarket/Aurora wells as detailed in the New Regional Official Plan approved by the Province on November 4, 2022.</SPAN></P><P><SPAN>Adjusted VS to include Aurora Well 7 and remove Newmarket well 14 as detailed in the WHPA update/ Source Protection Plan update approved by the Province on March 2, 2022.</SPAN></P><P><SPAN>Shows the Vulnerability Scoring (VS) zones in accordance with the Technical Rules for the Clean Water Act (issued in December 2008) for all municipal well fields in York Region. VS values of 2-10 are provided within Wellhead Protection Areas (WHPA) A, B, C and D (which represent the 100 metre, 0-2 year, 2-5 year and 5-25 year zones respectively), as based on scoring rules provided by the Ministry of the Environment (MOE) in the Clean Water Act. The figures and the final report present results of data compilation and computer simulations of a complex geologic setting. As outlined in the final report, data errors and data gaps are likely present in information provided to the consultant (EarthFX Inc.). In addition, computer models represent a simplification of the actual geologic and hydrogeologic conditions, and are subjected to simplifying assumptions. The data has been created by EarthFX Inc. The geologic and hydrogeologic data used as input into the numerical modelling procedure has been provided by various sources, including the MOE water-well records, previous consulting/research reports, and York Region.</SPAN></P><P><SPAN>Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act)</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Name: Clean Water Act (CWA) - Intake Protection Zone
Display Field: INTAKE_NAME
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN STYLE="font-size:12pt">The contiguous area of land and water immediately surrounding a surface water intake, which includes: the distances from the intake (IPZ1, 120m inland and 1000m on water); a minimum travel time of the water associated with the intake of a municipal residential system or other designated system, based on the minimum response time for the water treatment plant operator to respond to adverse conditions or an emergency (IPZ2, 2hr time of travel); and the remaining watershed area upstream of the minimum travel time area (also referred to as the Total Water Contributing Area) - applicable to inland water courses and inland lakes only</SPAN></P><DIV><DIV><P><SPAN /></P></DIV></DIV></DIV>
Name: Clean Water Act (CWA) - Significant Groundwater Recharge Area (SGRA) in the Lake Simcoe Region Conservation Authority (LSRCA)
Display Field: SUBWATERSHEDNAME
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Significant Groundwater Recharge Areas of the Lake Simcoe Region Conservation Authority. Significant Groundwater Recharge Areas are recharge areas that are characterized by permeable soils, such as sand or gravel that allow the water to seep easily into the ground and flow to an aquifer. A recharge area is considered significant when it helps maintain the water level in an aquifer that supplies a community with drinking water, or supplies groundwater recharge to a cold water ecosystem that is dependent on this recharge to maintain its ecological function.</SPAN></P><P><SPAN>Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act)</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Copyright Text: Source: Lake Simcoe Region Conservation Authority
Name: Clean Water Act (CWA) - Significant Groundwater Recharge Area (SGRA) in the Toronto and Region Conservation Authority (TRCA)
Display Field: SPP_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Significant Groundwater Recharge Area (SGRA) for the Toronto & Region Source Protection Authority (TRSPA). SGRAs are areas which generate higher than average groundwater recharge and are hydraulically connected to a drinking water system. Recharge areas are characterized by permeable soils, such as sand or gravel that allow the water to seep easily into the ground and flow to an aquifer. These areas help to maintain the water quantity in aquifers that supply communities with drinking water.A water budget is a study that evaluates the movement of water as well as its uses, on and below the earth’s surface. A Tier Three Water Budget and Local Area Risk Assessment uses surface water and groundwater flow models to evaluate municipal groundwater wells located within subwatersheds assigned a moderate or significant water quantity stress level in a Tier 2 water budget. The objective of the Tier Three Water Budget is to estimate the likelihood that a municipality will be able to meet future water quantity requirements. Tier 3 model did not encompass the entire TRSPA, thus this is a combination of (mostly) the Tier 3 SGRA (where recharge rate is greater than 224 mm/yr) and the Tier 1 SGRA (where recharge rate is greater than 150mm/yr) for the area that fell outside of the Tier 3 model (Etobicoke Creek Watershed). SGRA excludes areas that are fully serviced by Lake Ontario.Background:Both the Tier 1 and the Tier 3 analyses used variations of the PRMS modelling code. The Tier 1 study used the PRMS model (Leavesely, et al., 1983) developed by Earthfx Inc. for the TRCA. The Tier 3 study used rates of groundwater recharge estimated with the integrated GSFLOW model (Markstrom et al., 2008) developed by Earthfx for the Tier 3 Water Budget Analysis.Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act)</SPAN></P></DIV></DIV></DIV>
Copyright Text: Source: Toronto and Region Conservation Authority
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Shows the areas that are used to identify locations of potential water quantity threats. There are two types of threats: those associated with water demand and those associated with reductions to groundwater recharge. The WHPA-Q1 delineates an area where there is potential for water demand threats (i.e. new wells). The WHPA-Q2 delineates an area where there is potential for threats from reductions in groundwater recharge (i.e. new development). </SPAN></P><P><SPAN>The WHPA-Q1, WHPA-Q2 were delineated as part of the York Region Tier 3 water budget study that was completed for the Clean Water Act, 2006. A water budget is a quantitative measure of the hydrologic cycle components and an understanding of the processes and pathways in which water flows through watersheds. These two areas were delineated using the Tier 3 Water Budget numerical model. </SPAN></P><P><SPAN>Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act).</SPAN></P></DIV></DIV></DIV>
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Watersheds are defined as geographic areas from which water drains to a particular stream, river or body of water. Watersheds are composed of sub-watersheds and catchments. Information was taken from the Lake Simcoe Region Conservation Authority (LSRCA).</SPAN></P></DIV></DIV></DIV>
Copyright Text: Data provided by Lake Simcoe Region Conservation Authority, 2006
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Watersheds are defined as geographic areas from which water drains to a particular stream, river or body of water. Watersheds are composed of sub-watersheds and catchments. Information was taken from the Toronto Region Conservation Authority (TRCA) to show thewatershed boundaries for TRCA jurisdiction.</SPAN></P></DIV></DIV></DIV>
Name: Clean Water Act (CWA) - Wellhead Protection Areas
Display Field: NAME
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN>Modified WHPAs for Newmarket/Aurora wells as detailed in the New Regional Official Plan approved by the Province on November 4, 2022.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Adjusted WHPAs to include Aurora Well 7 and remove Newmarket well 14 as detailed in the WHPA update/ Source Protection Plan update approved by the Province on March 2, 2022.</SPAN></P><P><SPAN>Shows areas of influence on the land around a municipal well, the size of which is determined by how quickly water travels underground to the well, measured in years. For source protection planning, the Clean Water Act required that a standard 100 metre radius circle be provided around each municipal well; that is called the WHPA-A. The WHPA-B represents the 2-year time of travel. The WHPA-C represents the 5-year time of travel and the WHPA-D represents the 25-year time of travel.</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN>The shape of the WHPAs is based on numerical hydrogeological modelling results for all of the York Region production wells and are dynamic to some degree, since they can be influenced by a number of factors such as the slope of the land, the depth of the well, and the type of sediment. The maps that this data is based on have supporting reports that discuss their development and are available via the Water Resources group.</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN /></P><P STYLE="margin:7 0 7 0;"><SPAN>Please refer to the Clean Water Act approved symbology when using this data. (http://www.ontario.ca/environment-and-energy/mapping-symbology-clean-water-act)</SPAN></P><P STYLE="margin:7 0 7 0;"><SPAN /></P></DIV></DIV></DIV>