Description: Sec 34 TRSPA Changes: Nobleton Well 4 is now labeled as Well 5 (attribute change only)Caledon East Well 4 and 4A (spatial and attribute change)Sec 34 CVSPA Changes:Inglewood 1 is gone, new Inglewood 3 and 4 have been added (spatial and attribute change)Hillsburgh Wells (attribute change only)Alton Wells (attribute change only)
Definition Expression: N/A
Copyright Text: This feature class can be used to override and update existing MECP database spatial files for CTC
Description: Sec 34 TRSPA Changes: NEW Caledon East 4/4A VSA data (spatial and attribute change)Sec 34 CVSPA Changes:NEW Inglewood 3/4 VSA data (spatial and attribute change)Alton 3/4 Intrinsic Vulnerability has been updated (spatial and attribute change)
Name: Significant Groundwater Recharge Area (SGRA)
Display Field: SPP_ID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Tier 3 model did not encompass 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.