Regulation Limit

Last data update: December 21, 2025 The Ontario Regulation Limit 41/24 is mapped as the greatest extent of the Riverine Hazard Limit (Flood Plain/Meanderbelt/Slope/Apparent Valley with a 15m setback), the Shoreline Hazard Limit (shoreline flood hazard/shoreline erosion hazard with a 15m setback), and Wetlands (with a 30m setback from all MNRF wetlands including evaluated, unevaluated, identified). These components have been dissolved to create an ‘all in one’ polygon showing the greatest extent of the regulation limit within the LSRCA Scientific watershed boundary. Refer to “Reference Manual for Determination of Regulation Limits” (LSRCA, November 2005) for more information on determining the extent of the identified hazards. The Regulation Limit layer is updated and approved/adopted by the LSRCA Board of Directors.   5 components have been dissolved to comprise this 'all in one' polygon of Ontario 41/24 Regulation Limit.
Information regarding the creation of each component (Floodplain Setback, Meanderbelt Setback, Wetland With Adjacent Lands, Lake Shoreline Hazard & Apparent Valley/Steep Slope With Setback) is available upon request.