Lafarge Canada Inc. - Environmental Compliance Approval (sewage)

Instrument type: Environmental Compliance Approval (sewage)

ERO number
Ministry reference number
Notice type
Environmental Protection Act, R.S.O. 1990
Posted by
Ministry of the Environment, Conservation and Parks
Notice stage
Proposal posted
Comment period
January 20, 2023 - March 6, 2023 (45 days) Open
Last updated

This consultation closes at 11:59 p.m. on:
March 6, 2023

Proposal summary

This proposal is for a new Environmental Compliance Approval (industrial sewage) for Lafarge Canada Inc., for the establishment of sewage works to support a proposed McGill Pit industrial wastewater development, located in North Grenville, Ontario.

Location details

Site address

Lots 3, 4, and 5, Concessions 5 and 6
North Grenville, ON

Site location details

McGill Pit

Site location map

The location pin reflects the approximate area where environmental activity is taking place.

View this location on a map opens link in a new window


Lafarge Canada Inc.
6509 Airport Road
Mississauga, ON
L4V 1S7

Proposal details

This proposal is for a new Environmental Compliance Approval (industrial sewage) for Lafarge Canada Inc., for the establishment of sewage works in support of a proposed McGill Pit (Bennett Road Pit) industrial wastewater development; for the collection, treatment and disposal of discharge water from the McGill Pit, located in North Grenville, United Counties of Leeds and Grenville, Ontario.

The stormwater management works include:

  • a wash plant
  • on-site ditches
  • two stormwater management wet ponds

The stormwater management works will discharge to the South Gower Wetland upstream of the culvert that crosses South Gower Drive, approximately 700 metres south of Kennedy Road, within the Kemptville Creek Subwatershed and Rideau Valley Watershed.

Supporting materials

View materials in person

Some supporting materials may not be available online. If this is the case, you can request to view the materials in person.

Get in touch with the office listed below to find out if materials are available.

Client Services and Permissions Branch

135 St. Clair Avenue West
Floor 1
Toronto, ON
M4V 1P5

Office phone number


Let us know what you think of our proposal.

Have questions? Get in touch with the contact person below. Please include the ERO number for this notice in your email or letter to the contact.

Read our commenting and privacy policies.

Submit online

Submit by mail


Connect with us


Sign up for notifications

We will send you email notifications with any updates related to this consultation. You can change your notification preferences anytime by visiting settings in your profile page.

Follow this notice