Following statutory and regulatory changes by the Province of Ontario, the Central Lake Ontario Conservation Authority (CLOCA) has prepared draft natural hazards regulation mapping for public notification. You are invited to view the draft mapping at this website and by selecting the relevant map links:  www.cloca.com/draft-regulation-area-mapping. You may also reach out to us at mappingupdate@cloca.com if you have any questions regarding the draft mapping.

Mapping of areas that could be unsafe for people and property in the event of a flooding or erosion emergency across the watershed is a mandatory service that CLOCA provides in accordance with provincial regulations.

The Ministry of Natural Resources previously held a consultation on the regulatory changes on the Environmental Registry of Ontario. Details regarding the provincial consultation are available here: https://ero.ontario.ca/notice/019-2927

On April 1, 2024, the province enacted a new regulation under the Conservation Authorities Act for the effective regulation of development for the protection of people and property from natural hazards in Ontario.

The draft mapping shows areas associated within hazardous lands including valleylands, wetlands, watercourses, and other areas that could be subject to flooding and erosion hazards, including the Lake Ontario Shoreline. The mapping is based on provincial regulatory requirements and technical information such as flood and erosion studies prepared by professional engineers and geographic information associated with wetlands, watercourses and topography prepared by other environmental specialists.  Further, the maps show the change in area between the former regulation and the current provincial regulation in effect.

This notification period is in effect between October 9th and November 17th, 2025. The draft mapping will be considered by the CLOCA Board of Directors at their Board meeting scheduled for November 18th, 2025.

You are welcome to contact Chris Jones directly at cjones@cloca.com or our technical staff at mappingupdate@cloca.com regarding this initiative.