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Regulatory Permitting

Most provincial environmental ministries require industrial sources of air and noise emissions receive approval to operate. Facilities must identify how the contaminants are discharged (stack height, flow rate, etc.), quantify the rate of discharge (g/s or kg/year) and determine building heights and property boundaries.

At this point dispersion modeling is conducted to determine maximum off-site concentrations. These concentrations are then compared to provincial ambient air quality limits or guidelines. If the plant is in compliance then the application is submitted. If the current plant configuration does not meet the limits or guidelines then a mitigation phase is required.

Many clients have RWDI look after their licences and permits on a continual basis, and others have their first licences and permits submitted then have software and tools for future submissions.

Ontario

There are currently three types of C of A's in Ontario:

Process or unit specific
Consolidated plant wide
Comprehensive or flexibly C of A

Regardless of the type of C of A applied for, the MOE now requires facility wide emission inventory and dispersion modeling to accompany all submissions.

For more information, please visit the following links:

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