CLOSPA Significant Groundwater Recharge Area (English, CSV)

Explore the interactive map. CLOSPA Significant Groundwater Recharge Area: English CSV file you can open as a table, filter, chart and export up to 10,000 rows. From Conservation Ontario, updated Jan 2026.

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Publisher-reported update

2026-01-12

Click to view Metadata The jurisdictional identification of a Significant Groundwater Recharge Area (SGRA) was approved by the Source Protection Committee (SPC). However, Technical Rule (45) requires that “an area shall NOT be delineated as a SGRA unless the area has a hydrological connection to a surface water body or aquifer that is a source of drinking water for a drinking water system.” This includes private systems (O. Reg. 170/03). This Technical Rule introduces the idea of clipping out SGRAs that are of no significance from a drinking water point of view, since it would not make practical sense to protect them. These areas may be important in other contexts, but they are not considered significant under the CWA. In the CTC Region, the SGRA located within the municipal service boundary that are on the Lake Ontario shoreline and sourced from Lake Ontario have been clipped out if no drinking water systems (as defined in the Safe Drinking Water Act, 2002) depend on those SGRAs.

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