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Glenridge Naturalization Site Leachate and Stormwater Environmental Assessment
All Niagara Region projects

About the Project

Niagara Region has initiated a study to assess the leachate collection system and stormwater management options at Glenridge Quarry Naturalization Site. This site is located at 1860 Sir Isaac Brock Way in St. Catharines. The site stopped accepting waste in 2001.

The Glenridge Quarry Naturalization Site includes a passive leachate collection system to prevent discharge of leachate under Ministry of the Environment, Conservation and Parks Environmental Compliance Approval No. A120106. All collected leachate is currently sent to the sanitary sewer, which is treated at the Port Dalhousie Water Pollution Control Plant.

Leachate is a liquid that passes through a landfill and extracts dissolved or suspended solids from the waste material in the process. This liquid includes rainwater entering the landfill, liquid created as a result of the natural decomposition of organic material and other liquids and chemicals that have been discarded.

Because of the age of the leachate collection system and settlement of the landfill, the underdrain system has experienced some deterioration. Since it closed in 2001, landfill settlement has also caused changes to the surface grading. This settlement has caused poor surficial drainage and created more leachate. This could lead to increased environmental effects like migration of leachate impacts to downstream groundwater or surface water. Current management approaches require active and ongoing maintenance.

The purpose of the process is to identify any potential environmental effects associated with the proposed works, plan appropriate mitigation measures and determine any potential environmental assessment or permitting requirements.

Niagara Region is proposing to improve the leachate collection system and surface grading. These improvements would mean better collection of leachate for discharge and treatment. This would prevent potential impacts to downstream groundwater or surface water.

The proposed modifications to the landfill surface grading and existing leachate collection system are outlined in Schedule 'A/A+' of the Municipal Class Environmental Assessment. Schedule 'A/A+' activities are pre-approved, but public notification is required before project implementation.

Project Timeline

Fall / winter 2021 - Completed
Notice of study commencement

Fall 2021 / winter 2022 - completed
Alternative design concepts

March 2022
Public notification of selected design alternative and Environmental Compliance Approval Submission


Peter Kryger, P. Geo., PMP
Niagara Region
Project Manager
905-685-4225 ext. 3736
Email Peter Kryger

Matt Knowles, P. Eng., PMP
Golder Associates Ltd.
Consultant Project Manager
613-592-9600 ext. 3256

Image Gallery

Glenridge Map

Reports and Documents

This map shows the location of the Glenridge Naturalization Site on St. David's Road at Glenridge Avenue and the 406 highway in St. Catharines.
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