"Huron-Superior Regional…

"Huron-Superior Regional Conservation Authority"

Part of the reason CAs have been so effective in supporting flood-resilient development - a system that has spared Ontario tens of billions of dollars, at a conservative estimate, in flood damage over the last 70 years - is the deep local hydrological and climatologic expertise they bring to the table.

Thunder Bay is 750km away from Wiarton. 850km from the southern shores of Lake Simcoe.

While working for the City of Windsor, we received a commissioned study of updated and projected IDF curves incorporating climate change, a critical resource when designing stormwater infrastructure and siting new developments. The study was a joint effort between the Essex Region Conservation Authority and the Toronto-Region Conservation Authority.

There were significant differences in the projected intensification of storms - particularly the most intense storms - between the study's two focus areas: the Windsor Airport and Pearson Airport - a distance of only 300km.

Each Conservation Authority has its own unique watershed characteristics, local conditions, and on-the-ground expertise. Merging them risks creating a one-size-fits-all approach that may overlook the distinct environmental and hydrological realities within each region. That localized knowledge is exactly what makes CAs so effective.

While there may be opportunities to streamline things like strategic planning and administration across CAs, any loss of local expertise or adjustments to local realities risks swamping any economic or efficiency gains with increased disaster losses, higher premiums, and a reduction of home affordability.