Ontario’s Dispersion Models Updates

Some of you may have already received pre-notification of the Ministry of Environment, Conservation and Parks (“MECP”), formerly Ministry of Environment and Climate Change (“MOECC”) (available at: http://www.ontario.ca/document/pre-notification-updates-ontarios-air-dispersion-models) ‘s intent to update Ontario’s Dispersion Models.  

We’ve been getting questions about how this may affect our clients. Although no formal notice has yet given by the MECP (and so we can’t yet say exactly what the implementation will look like), based on the pre-notice, the MECP will be adopting new model versions in October 2015. Accordingly, you may wish to follow developments on this front if you will be preparing an Emissions Summary and Dispersion Modelling ("ESDM") report or Environmental Compliance Approval ("ECA") Application with a planned submission date after October 2015.

Any questions, please contact: