This consultation was open from:
September 24, 2025
to November 8, 2025
Decision summary
An amended Environmental Compliance Approval (ECA) has been issued, permitting stormwater management works to service the Stoney Creek Regional Facility located at 65 Green Mountain Road West in the City of Hamilton.
Location details
Site address
65 Green Mountain Road West
Hamilton,
ON
Canada
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 windowProponent(s)
GFL Environmental Inc.
65 Green Mountain Road West
Hamilton,
ON
L8J 1X5
Canada
Decision details
This amended sewage approval includes stormwater management works. Leachate treatment works have been reviewed and approved under the site's Waste Management ECA. This sewage works approval includes an updated stormwater management plan and modifies the mode of operation of the pond from the continuous discharge mode to a normally closed mode of operation.
Effects of consultation
Comments provided were considered. The current amended sewage works approval includes stormwater management works only. The comments received were also related to other media and the relevant ministry staff have been advised of those comments. The comments that were related to stormwater management works were addressed in the subject approval.
For some comments related to the application form, ministry has obtained clarification from the applicants. Responding to some comments, the applicants have informed that they are working with City of Hamilton to resolve comments. The current sewage works approval requires that the stormwater discharge from the pond meet the applicable effluent criteria prior to discharge. Additionally, the owners are required to undertake monitoring, reporting and contingency measures in order to avoid any impacts to the receiving environment. A ministry approval does not relieve any person of any obligation to comply with any provision of any applicable statute, regulation or other legal requirement.
A comment was received about stormwater management pond dredging and maintenance. The ECA conditions require the owners to clean and maintain the works to prevent excess build-up of sediment and vegetation.
A comment was received to consider controlled discharge from the stormwater management pond. The previous approval required the owners to operation the pond in a normally open condition. This, however, has been revised and the current approval requires the owners to operate the pond in a normally closed condition. Stormwater discharge from the pond can be released upon a confirmation that the effluent quality has met the effluent requirements as per current approval.
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.
119 King Street West
Floor 9
Hamilton,
ON
L8P 4Y7
Canada
How to Appeal
This instrument decision can be appealed. You have 15 days from January 30, 2026 to begin the appeal process.
Carefully review the information below to learn more about the appeal process.
How to appealClick to Expand Accordion
Start the process to appeal
If you’re an Ontario resident, you can start the process to appeal this instrument decision.
First, you’ll need to seek leave (i.e. get permission) from the relevant appellate body to appeal the decision.
If the appellate body grants leave, the appeal itself will follow.
Seek leave to appeal
To seek leave to appeal, you need to do these three things:
- prepare your application
- provide notice to the minister
- mail your application to three parties
1. Prepare your application
You’ll need to prepare an application. You may wish to include the following things in your application:
- A document that includes:
- your name, phone number, fax number (if any), and/or email address
- the ERO number and ministry reference number (located on this page)
- a statement about whether you are a resident in Ontario
- your interest in the decision, and any facts you want taken into account in deciding whether you have an interest in the decision
- the parts of the instrument that you’re challenging
- whether the decision could result in significant harm to the environment
- the reason(s) why you believe that no reasonable person – having regard to the relevant law and to any government policies developed to guide decisions of that kind – could have made the decision
- the grounds (facts) you’ll be using to appeal
- the outcome you’d like to see
- A copy of the instrument (approval, permit, order) that you you are seeking leave to appeal. You’ll find this in the decision notice on the Environmental Registry
- Copies of all supporting documents, facts and evidence that you’ll be using to appeal
What is considered
The appeal body will consider the following two questions in deciding whether to grant you leave to appeal:
- is there is good reason to believe that no reasonable person, with respect to the relevant law and to any government policies developed to guide decisions of that kind, could have made the decision?
- could the decision you wish to appeal result in significant harm to the environment?
2. Provide your notice
You’ll need to provide notice to the Minister of the Environment, Conservation and Parks that you’re seeking leave to appeal.
In your notice, please include a brief description of the:
- decision that you wish to appeal
- grounds for granting leave to appeal
You can provide notice by email at minister.mecp@ontario.ca or by mail at:
College Park 5th Floor, 777 Bay St.
Toronto, ON
M7A 2J3
3. Mail your application
You’ll need to mail your application that you prepared in step #1 to each of these three parties:
- appellate body
- issuing authority (the ministry official who issued the instrument)
- proponent (the company or individual to whom the instrument was issued)
GFL Environmental Inc.
65 Green Mountain Road West
Hamilton,
ON
L8J 1X5
Canada
Registrar, Ontario Land Tribunal
655 Bay Street, Suite 1500
Toronto, Ontario
M5G 1E5
(416) 212-6349
(866) 448-2248
OLT.Registrar@ontario.ca
Include the following:
This is not legal advice. Please refer to the Environmental Bill of Rights for exact legal requirements. Consult a lawyer if you need help with the appeal process.
Connect with us
Contact
Client Services and Permissions Branch
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Original proposal
Proposal details
This application is for an amendment to existing Industrial Sewage ECA No. 5400-7DSSHU (May 1, 2008) that permits the stormwater management facility and leachate collection and disposal facility to service the Stoney Creek Regional Facility [currently identified as the Newalta Stoney Creek Landfill in ECA No. 5400-7DSSHU (formerly known as Taro East Landfill)] located at 65 Green Mountain Road West in the City of Hamilton.
The ECA permits the stormwater management facility to service a total of 34 hectares drainage area of Phase1 of Newalta Stoney Creek Landfill designed to provide quantity and quality control of stormwater runoff from storm events with up to 1:100 year return frequency. The ECA permits operation of a leachate impacted groundwater and stormwater collection system, including a leachate collection pond and leachate equalization lagoon.
This Amendment application includes a name change and a new Leachate Treatment System (LTS) to replace the existing treatment system. The primary purpose and function of the LTS is to remove odour from the leachate collected through the leachate collection system prior to discharge to the sanitary sewer network, while adhering to requirements of the City of Hamilton Sewer By-Law No. 14-090 and City-issued Sewer Discharge Permits.
This application includes an updated proposed Stormwater Management (SWM) Plan to achieve the required water quality and quantity controls for the continued operation of the Site.
The site receives a maximum of 8,000 tonnes per day, for the disposal of solid, non-hazardous commercial, institutional, and industrial waste including petroleum contaminated soils. The maximum volume of waste and cover material, excluding final cover, which may be disposed of at the Stoney Creek Regional Facility is 10,180,000 cubic metres and will serve the Province of Ontario. The facility accepts waste Monday through Friday between the hours of 7:00 a.m. and 5:00 p.m. and is closed weekends and statutory holidays.
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.
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Comment
Commenting is now closed.
This consultation was open from September 24, 2025
to November 8, 2025
Connect with us
Contact
Client Services and Permissions Branch
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Comments received
Through the registry
2By email
0By mail
0