The Ministry of the Environment, Conservation and Parks (MECP) has recently introduced a modernized approach to the Environmental Compliance Approval application process, now called the Consolidated Linear Infrastructure Environmental Compliance Approval (CLI ECA). This approach is intended to reduce the burden on municipalities, developers and the ministry, while imposing a consistent set of conditions intended to improve environmental protection. The City of Cornwall now has this approval.

In an attempt to streamline this process, the City has compiled application packages and checklists to assist developers seeking approval from the municipality under the new CLI ECAs governing the municipal sewage collection system and stormwater management system. Additionally, you will find the same for Form 1 – Watermains approvals.  

Types of alterations

There are two types of alterations related to CLI ECA applications:

  • sanitary (sewage) collection system: all connected sewage collection works within the City of Cornwall and owned and/or operated by the City of Cornwall including pumping stations and pipes
  • stormwater management system: all connected stormwater management works within the City of Cornwall and owned and/or operated by the City of Cornwall, including pipes, stormwater management facilities, and Low Impact Development (LID) infrastructure
When to request an alteration

You need to request a CLI ECA alteration for the following types of projects:

  • changing, replacing or extending sanitary sewers and storm sewers, including extensions into new residential developments
  • changes that are on city-owned property that includes parks and community centres serving a single parcel of land
  • adding new sewage pumping stations or changing existing sewage pumping stations
  • adding new stormwater management facilities or changing existing facilities (examples: wet pond, infiltration basins, engineered wetlands, oil grit separators)
  • adding new or changing existing equipment with emissions to air (examples: emergency power generators or venting for odour control) related to sanitary and storm sewers, sewage pumping stations and/or stormwater management facilities
When you don't need to request an alteration

You don’t need to apply for a CLI ECA alteration for privately owned sewage works on industrial, institutional or commercial land.

For these projects, you may still need an individual ECA from the MECP, a building permit and a site plan approval.
Active City of Cornwall CLI ECAs

These forms must be completed by the developer and their engineering consultants (similar to the former ECA approvals). In addition please note the new post-construction requirements.

Sewage Collection application package
Stormwater Management application package
Watermains application checklist
Design standards, guidelines, supporting documentation and links

Design Standards and Guidelines

Erosion and sediment control

Outlets
Inspection and Maintenance
 Yearly City of Cornwall CLI-ECA Reports

Application process:

  1. Complete the application (including checklist and forms) specific to your request(s) for approval.
  2. Submit completed application in person at 1225 Ontario Street or online by clicking here. 
  3. Pay applicable fee by cheque, in person at 1225 Ontario Street.

Please note that your submission will not be processed until payment is received. 

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