Guideline to address odour mixtures in Ontario

ERO number
019-2768
Notice type
Policy
Posted by
Ministry of the Environment, Conservation and Parks
Notice stage
Decision
Decision posted
Comment period
May 4, 2021 - August 6, 2021 (94 days) Closed
Last updated

This consultation was open from:
May 4, 2021
to August 6, 2021

Decision summary

The ministry is not proceeding with the Guideline to Address Odour Mixtures in Ontario at this time.

Decision details

Ontario is committed to protecting the health of communities and our environment and preventing the effects of odour pollution on residential areas.

Between May and August 2021, the ministry consulted with a wide range of stakeholders on the proposed Guideline to Address Odour Mixtures in Ontario (Odour Guideline). The proposed Odour Guideline aimed to enhance regulatory certainty for potentially odorous facilities save time and money by proactively addressing odour and ensure more effective remediation of issues caused by odour mixtures.

The ministry is still considering stakeholder comments and is not proceeding with the proposed Odour Guideline at this time. However, the ministry is continuing with the development of complementary reference tools to support facilities in managing odour, including:

  • Technical bulletin that describes how to complete an assessment of odour mixtures
  • Sector specific technical bulletins that outline best practices for managing and controlling odours
  • Example odour technology benchmarking report

The ministry is also continuing to consider opportunities for accreditation by laboratories conducting assessments of odour mixtures.

The ministry will consider any comments received on the original proposal while developing complementary reference tools and in the development of any future proposed guidance, and will post any future proposals on the Environmental Registry for public consultation.

Proponents are encouraged to contact the ministry’s Environmental Permissions Branch with respect to Environmental Compliance Application expectations and how odour should be addressed in future applications.

Comments received

Through the registry

23

By email

22

By mail

0
View comments submitted through the registry

Effects of consultation

The ministry considered all comments received during and after the posting through:

  • engagement sessions/meetings held with stakeholders
  • written comments received on the proposal

Of the 45 written submissions received:

  • 12 were form-letter support of specific organizations’ submissions

We received comments from:

  • residents
  • municipalities and related associations
  • developers and related associations
  • industry and related associations
  • consultants and related associations
  • environmental, community and/or other organizations

Most comments received can be grouped into the following themes:

  1. General support for the new Odour Guideline and additional resources.
  2. Concerns about possible impacts on siting of a facility, increases in regulatory burden, and costs for facilities with odour management plans already in place.
  3. Request for cannabis operations to be included in the sectors identified in Appendix A.

The ministry is still considering stakeholder comments, but has decided not to proceed with the proposed Odour Guideline at this time.

The ministry will continue to:

  • review how odour is addressed
  • consider the comments received on our proposed Odour Guideline
  • develop complementary reference tools
  • Work with facilities on odour management for ECA applications

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.

Technical Assessment and Standards Development Branch
Address

40 St. Clair Avenue West
7th floor
Toronto, ON
M4V 1M2
Canada

Office phone number

Connect with us

Contact

Sean Avery

Phone number
Email address
Office
Technical Assessment and Standards Development Branch
Address

40 St. Clair Avenue West
7th floor
Toronto, ON
M4V 1M2
Canada

Office phone number

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

Original proposal

ERO number
019-2768
Notice type
Policy
Posted by
Ministry of the Environment, Conservation and Parks
Proposal posted

Comment period

May 4, 2021 - August 6, 2021 (94 days)

Proposal details

Purpose of proposed odour guidance

Ontario is protecting the health of communities and our environment by taking a proactive, preventative approach to managing odour emissions.

We are proposing guidance on how industrial facilities, development proponents and other members of the regulated community can anticipate, prevent, and address odour issues that could be of concern to local residents.

The guidance would help ensure there is:

  • less regulatory uncertainty for facilities
  • better coordination with land planning decisions
  • more effective remediation of issues caused by odour mixtures

Although odorous impacts may be caused by a single contaminant, in many cases they are caused by a mixture of contaminants. The Ministry of the Environment, Conservation and Parks (the “ministry”) publishes odour-based standards (or other benchmarks) under the Local Air Quality Regulation (Ontario Regulation 419/05). Odour mixtures (total odour) are not specifically addressed in the local air quality regulation.

Our proposed guidance will provide more clarity on how to identify, prevent, manage, and remediate human health and environmental impacts caused by emitted odour. It includes:

  • clarification on the requirements for potentially odorous facilities applying for an Environmental Compliance Approval (ECA) under section 20.2 of the Environmental Protection Act
  • clarification for facilities preparing an Odour Study required by the Renewable Energy Approvals Regulation (Ontario Regulation 359/09)
  • tools to more effectively anticipate and prevent odour issues for new sources of odour and speed up remediation efforts
  • a process for assessing, mitigating and minimizing odour impacts when a new development is proposed, which supports the proposed Land Use Compatibility Guideline
  • additional resources for facilities when assessing odours or when preparing a Technology Benchmarking Report for odour
  • considerations for laboratories in Ontario that assess odour

By using this guidance, facilities will be able to identify potential odour sources before they are operational and speed up remediation efforts. They will also have best practices and recommendations available to help them mitigate odorous sources over time.

Other information – proposed phase-in period

We will consider comments on this proposal when finalizing Ontario’s guidance for odour mixtures. We are proposing that the environmental compliance approval application requirements outlined in this proposal be phased in 6 months when adopted.

Other information – development of additional guidance and tools

To assist persons in completing the required odour work for an Environmental Compliance Approval or Renewable Energy Approval application, the ministry has prepared or plans to prepare the following additional guidance and tools to complement the proposed odour guideline:

1) Technical bulletin – Methodology for completing an odour assessment for odour mixtures

The Technical Bulletin for Odour Assessment provides guidance for a facility when completing an odour assessment, including estimating odour emissions, identifying dominant sources, analyzing odour samples or performing air dispersion modelling for odorous mixtures. This proposed technical bulletin is included with this proposal notice for comment.

2) Screening form

The screening form would assist facilities with determining if any additional odour work is required for submission with the Environmental Compliance Approval application. The screening form would be considered a preliminary odour assessment and would assist facilities in determining what additional documentation or assessment is required with their application. The screening form would function similarly to the existing ‘odour screening report form’ found on the ministry’s website.

3) Odour technology benchmarking report

The example odour technology benchmarking report would demonstrate the type of information and report sections expected when completing an odour technology benchmarking report. We anticipate that the example odour technology benchmarking report would also reduce some of the effort and cost for facilities that are expected to complete odour technology benchmarking reports.

4) Technical bulletins outlining minimum expectations

These additional technical bulletins would provide minimum expectations for certain odorous activities and processes to encourage facilities to implement best practices and controls to reduce odour emissions.

We would develop these technical bulletins over time. The decision to develop a technical bulletin would consider factors such as the nature of the activity or process, the volume of ECA applications expected, the need to address challenging issues, etc. We intend to share draft technical bulletins, with stakeholders for their input before they are finalized. Once published, facilities could refer to the technical bulletins when considering odour controls.

Other information – odour analysis laboratory accreditation

Currently, all odour laboratories in Ontario are expected to follow the European Standard EN 13725:2003 in conjunction with provisions outlined within the Ontario Source Testing Code when analyzing odour samples. However, there is no generally accepted odour lab accreditation currently in place in Ontario.

To ensure the highest quality of results when odour laboratories analyze odour samples, we propose to work with accreditation organizations to develop specific quality requirements for Ontario’s odour laboratories.

After a phase-in period following publication of these specific quality requirements, we propose that all odour samples used for source assessments be analyzed by an accredited odour laboratory. The phase-in period is proposed to be two years after quality requirements are published to allow time for all interested odour laboratories to become accredited.

Other information – updating existing guidance

If the proposed odour guideline is finalized, we would update the following guidance documents with respect to odour:

1) Guide to applying for an Environmental Compliance Approval (ECA)

The ECA guide outlines the requirements for persons applying for an ECA application, including odour-related requirements. As part of this initiative, we propose that the ECA guide would be updated to align with requirements in the odour guideline once it has been finalized. For instance, Odour Impact Assessments or Odour Management and Control Plans for ECA applications for waste disposal sites (such as composting facilities and landfills, etc.) may no longer be required.

The ECA guide would also be updated to include the odour guideline requirements for pre-consultation. The ECA guide already includes recommendations for pre-submission meetings, and the update will harmonize pre-submission requirements so that multiple meetings are not required for one ECA submission.

2) Checklist for technical requirements for a complete ECA submission

This checklist would also be updated to reflect the odour guideline once is has been finalized.

3) Technical Guide to Renewable Energy Approvals

We propose that the Technical Guide to Renewable Energy Approvals be updated to indicate that bio-energy facilities will be required to submit a best management practices plan (BMPP) and odour technology benchmarking report (OTBR) with their application to satisfy the requirements of an Odour Study Report.

Concurrent with this posting, the ministry is consulting on a draft land use compatibility guideline and a new draft compliance policy. See the links below for additional information on these postings.

Other public consultation opportunities

As described above, if the proposed odour guideline is finalized, we anticipate developing additional resources in the form of technical bulletins or example reports for facilities when assessing odours or when preparing a Technology Benchmarking Report for odour. Anyone interested in reviewing these additional resources/tools to provide comments once completed should contact Sean Avery, Air Pollution Control Engineer, Technical Assessment and Standards Development Branch, sean.avery@ontario.ca. We intend to seek input before the additional tools and guidance documents are completed.

Comment

Commenting is now closed.

This consultation was open from May 4, 2021
to August 6, 2021

Connect with us

Contact

Sean Avery

Phone number
Email address
Office
Technical Assessment and Standards Development Branch
Address

40 St. Clair Avenue West
7th floor
Toronto, ON
M4V 1M2
Canada

Office phone number