Montrose Environmental Group Continues to Build their International Presence Acquiring LEHDER Environmental Services

     Posted by Marnie Freer on

Montrose Environmental Group Acquires LEHDER Environmental Services

IRVINE, CA (August 7, 2019) – Montrose Environmental Group, Inc. (“Montrose”), a high-growth environmental services company, and LEHDER Environmental Services (“LEHDER”), one of Canada’s largest air quality management companies, today announced they have entered into a definitive agreement under which Montrose has acquired LEHDER. Terms of the transaction were not disclosed.

LEHDER, pronounced “leader,” combines broad expertise in industrial air quality management with comprehensive knowledge of Canadian regulatory requirements to promote compliance with operational flexibility. LEHDER’s multidisciplinary team of consulting professionals includes engineers, scientists, information management specialists, industrial hygienists, biologists and technologists working together to provide integrated solutions.

This acquisition allows Montrose to expand its international reach, combining LEHDER’s expertise in Canadian stack testing, permitting, and consulting with Montrose’s array of world-class environmental services for industrial customers.

“We’ve been aware of LEHDER for several years, and their customer reputation is unmatched,” said Shawn Nelezen, Senior Vice President at Montrose. “Our team members have great respect for the LEHDER professionals they’ve met.” Nelezen continued, “Now, in addition to accessing a broader suite of services, our international customers will have a local, single point of contact, decreasing response time and costs.”

For Des Hayles, a LEHDER founder and Principal, the Montrose acquisition is a great opportunity to promote long-term growth. “Montrose was the best fit for where we are now, and moving forward.” Hayles added, “Combining our resources with Montrose increases capacity and bench strength. Our customers will benefit from the broader knowledge base.”

About LEHDER Environmental Services
Formed in 1995, LEHDER Environmental Services is one of the largest air quality management companies in Canada. LEHDER helps customers make decisions that provide operational flexibility while meeting regulatory, economic, and social requirements. With expertise in source testing, emission inventories, air dispersion modeling, data analysis, and approval applications, LEHDER serves a wide range of refining, petrochemical, energy, and manufacturing customers.

LEHDER is headquartered in Point Edward, Ontario, with its Western Division based in Edmonton, Alberta. For more information, visit www.lehder.com.

About Montrose Environmental Group, Inc.
Montrose Environmental Group, Inc. (“Montrose”) is a high-growth environmental services company with more than 50 locations and 1,200 employees in North America. As one of the largest companies focused on environmental solutions, they support government and commercial organizations with a diverse range of services. Their expertise covers everything from comprehensive air measurement and laboratory services to regulatory compliance, permitting, engineering, and remediation. Montrose understands the unique nature of each client’s situation and employs their broad range of services and expertise to offer equally specialized services — everything from turn-key anaerobic digesters to landfill gas-to-energy development, from tribal gaming environmental studies to water rights issues and more. Working with Montrose, clients gain the personalized, collaborative attention inherent with a local presence along with the peace of mind that grows out of national scale and a respected track record. For more information, visit www.montrose-env.com

Changes to Toxics Reduction Regulations – 2018 Reporting Year

     Posted by Marnie Freer on

Changes to Toxics Reduction Regulations – 2018 Reporting Year

The Ontario Ministry of the Environment, Conservation and Parks (MECP) has promulgated changes to the Toxics Reduction Reporting requirements by amending O. Reg. 455/09 and finalizing the planned repeal of the Toxics Reduction Act and associated Regulations.  The Act and Regulations will be repealed as of December 31, 2021.  Therefore, annual Toxics Accounting Reports will be required on June 1, 2019, June 1, 2020 and June 1, 2021 for substances that have been previously reported.  There won’t be any further regulatory obligations after June of 2021.

In accordance with the amended O. Reg. 455/09, reporting will still be required until the repeal date of December 31, 2021.  However, facilities do not have to submit an annual Toxics Accounting Report (due June 1, annually) if:

  • A substance triggered the threshold for the first time in 2018 (new substance does not require reporting)
  • The facility has never reported under this program but met the reporting threshold in 2018 for the first time (no report required)
  • The facility previously submitted an exit record for a substance, but triggered again in 2018 (substance does not require reporting) 

Facilities that have reported in previous years must continue to submit annual Toxics Accounting Reports for all substances previously reported that also meet the threshold in 2018. The amended Regulation also eliminates the requirement to review/update Toxics Reduction Plans and submit the associated Plan Summaries which originally had a due date of December 31, 2019.   More details are available on the Toxics Reduction Program website.  Contact LEHDER for more information and assistance.

ECCC Offering Federal GHG Information Sessions

     Posted by Marnie Freer on

ECCC Offering Federal GHG Information Sessions

Environment and Climate Change Canada (ECCC) has announced online information sessions offered later this week to support facilities navigating the new Federal GHG reporting requirements.

A General Reporting Requirements Session will be hosted on Wednesday, May 1 from 1:30-3:30 EDT, and the session covering the Expanded Reporting Requirements will be held on Thursday, May 2 from 1:30-3:30 EDT.  ECCC plans to post the slide decks after the sessions have concluded. 

Reporting requirements details are available on the ECCC GHGRP website.  Contact LEHDER for more information and assistance.

Federal Greenhouse Gas Reporting Program – 2018 Reporting Year

     Posted by Marnie Freer on

Federal Greenhouse Gas Reporting Program – 2018 Reporting Year

The 2018 Reporting Period was opened on Friday, March 29, 2019 for the Canadian Greenhouse Gas Reporting Program (GHGRP).  Reports are due June 1, 2019 via the Single Window system, and pertain to GHG emitted between January 1 and December 31, 2018.  For most facilities, the reporting threshold is 10 000 tonnes of CO2eq emitted during 2018.  In accordance with the 2018 Reporting Notice published on January 19, 2019, the 2018 reporting year encompasses Phases 1 and 2 of the expanded reporting requirements.  

Facilities covered under Phases 1 and Phase 2 must utilize specific quantification methodologies to estimate emissions which are detailed in Canada’s Greenhouse Gas Quantification Requirements for 2018.   Phase 1 and 2 activities include:

  • CO2 capture, transport, and storage activities
  • mining
  • electricity and heat generation
  • petroleum refineries
  • the production of:
    • cement
    • lime
    • aluminium
    • iron and steel
    • ethanol
    • ammonia
    • nitric acid
    • hydrogen
    • pulp and paper
    • base metal

Due to similarities with Provincial reporting requirements, facilities in BC, ON, PQ, NS and NL can elect to submit their provincial report to the GHGRP to satisfy 2018 reporting requirements.  Environment and Climate Change Canada has not indicated whether this coordination will be offered in subsequent years.  More details are available on the GHGRP Reporting website.  

Contact LEHDER for more information and assistance.

Comment Period Open for Proposed New Sulphur Dioxide Regulations for Ontario Petroleum Facilities

     Posted by LEHDER News on

On March 20, 2018, the Ministry of Environment, Parks and Conservation (MECP) posted their decision to update the air standards for sulphur dioxide (SO2) and clarify regulatory requirements to help to reduce risks to communities near industrial facilities. Included in this decision were:

  • the updating of the 1 hour average and annual average SO2 air standards within Ontario Regulation 419/05 and the Air Contaminants Benchmarks List, which come into force on January 1, 2023; 
  • implementation of the 1/2 hour and 1 hour Upper Risk Threshold values to be phased in on January 1, 2019; and
  • amendment to Section 10 of O. Reg. 419/05 for facility modelling of transitional operating conditions (TOCs).

The update to O. Reg. 419/05  was promulgated on July 1, 2018.  For additional background information, please refer to full Environmental Registry of Ontario  (ERO Registry Number 013-0903) post.

Proposed Regulation for Petroleum Facilities

On November 15, 2018, the MECP posted the New regulation to help reduce SO2 emissions from Ontario petroleum facilities proposal to the ERO for comments (ERO Number 013-4126)The comment period is open until December 15, 2018.

The intent of this new regulation is to increase accountability by petroleum facilities in order to reduce emissions of SO2 and provide immediate actions to that would improve management of flaring events and greater accountability through reporting, enhanced monitoring and the introduction of environmental penalties.

Under the proposed regulation, petroleum facilities in Ontario would now be required to:

  • calculate SO2 emissions from flaring incidents and, within two to four years, install continuous in-stack monitoring equipment
  • report SO2 flaring incidents
  • submit reports to the ministry that analyze the root cause of flaring incidents and set out corrective and preventive actions to be taken
  • submit plans to the ministry for reducing emissions of SO2 and flaring incidents at the facility within one year
  • engage the local community about SO2 emissions and plans to address the emissions

For additional background on the proposed regulation, please refer to the ERO post.


Comments can only be submitted online through the ERO website or by mail until December 15, 2018.

To submit comments online, you must have a valid ERO account and submit them directly through the link in the post.  However, comments can be submitted anonymously here.

Comments can be submitted by mail to:

Rudolph Wan
Local Air Quality Permits
40 St. Clair Avenue West
7th Floor
Toronto ON M4V 1M2

If you have any additional questions, please contact Penny McInnis.

Greenhouse Gas Reporting Program Resources Available

     Posted by LEHDER News on

The following information was disseminated by the Greenhouse Gas Reporting Program of Environment and Climate Change Canada on May 4, 2018 and includes a list of resources now available for 2017RY GHG Reporting.


Environment and Climate Change Canada (ECCC)’s Greenhouse Gas Reporting Program (GHGRP) is accepting GHG reports for the 2017 calendar year:

Available Resources

Here are resources available to help you report to the GHGRP (includes newly added resources).

We conducted several Webex information sessions in April to explain the general requirements (for all facilities) and newly expanded requirements (for specific facilities). We also gave a demonstration on how to use the Single Window to submit a GHG report.

NEW! Below are links to the information provided during these sessions.

Questions? Please contact us by telephone or email.

Greenhouse Gas Reporting Program
Environment and Climate Change Canada / Government of Canada
Tel: 819-938-3258
Toll Free: 1-877-877-8375
Greenhouse Gas Reporting Program Website

For more information on GHG reporting requirements, please contact Marnie Freer.

Policy Summary on Cumulative Effects Assessment in Air Approvals

     Posted by LEHDER News on

In November 2017, the MOECC proposed an air approvals policy with the intent to more effectively consider cumulative impacts from multiple air pollution sources. The final policy decision notice was published on the Environmental Registry of Ontario (formerly EBR) on April 26, 2017. The policy will take effect on October 1, 2018.

Impacted Facilities

The policy applies to ECA applications for new or expanding facilities located in Sarnia/Corunna that emit benzene, and those in Hamilton/Burlington that emit benzene or Benzo[a]pyrene (BaP). Key definitions are shown below.

New Facility: no construction of any part of the facility has occurred before the date that the ECA application was received by the Ministry, and no ECA has been issued in respect of any part of the facility before the date that the ECA application was received by the Ministry.

Expanding Facility: the application involves a modification at the facility that will result in an increase in production rate; or a net increase in the POI concentrations for benzene or benzo[a]pyrene compared to the ESDM report that was submitted in respect of the facility’s current approval; or an increase in emissions of benzene or benzo[a]pyrene.

The MOECC has conducted multi-source modelling to identify areas of elevated contaminant concentrations within these cities and has classified specific areas according to the level of cancer risk (Level 1/2/3). Sarnia/Corunna is classified as a Level 1 area, and Hamilton/Burlington has a mix of levels 1, 2 and 3.

Required Actions

Areas with higher cancer risk will be required to undertake more detailed assessments to support ECA applications, and may be required to install specific equipment in accordance with Technology Benchmarking studies. The Action Levels and required actions are detailed in the table below. 

Action Level Cumulative Concentration/ Lifetime Incremental Combined Cancer Risk Management Actions
N/A <1 in a million Does not trigger further action
1 1 to 10 in a million No further action for industry.
Triggers periodic evaluation (by ministry) to determine if the Action Level changes
2 > 10 to 100 in a million ECA Applications for new or expanding facilities may be required to:
1. include a technology benchmarking report with some exceptions
2. include best available pollution control methods
3 > 100 in a million ECA Applications for new or expanding facilities may be required to:
1. include a technology benchmarking report with some exceptions
2. include pollution control methods to achieve the lowest possible emission rates as compared to an  existing pollution source of the same kind globally

Impacted facilities located in Action Level 2 or 3 areas will be required to participate in pre-consultation with Approvals Branch at least 9 months prior to submission of the ECA application. The meeting will provide the MOECC an understanding of dominant sources and assist in determining the scope of the Technology Benchmarking Report (TBR).

Facilities located in Sarnia/Corunna will not be required to complete any additional actions for their ECA applications under this policy since the entire area is classified as a Level 1 at present. However, it should be anticipated that additional scrutiny and detailed review of calculations, modelling and documentation related to benzene is a potential.


Following are the link to the ERO posting on this policy decision and related policy documentation.

EBR Posting


ERO Posting

Note: You may receive a 404 error message if you have not created an account to the beta ERO system

Policy Document

Cumulative Effects Assessment (CEA) in Air Approvals Cumulative Effects Assessment (CEA) in Air Approvals (118 KB)

For more information on the CEA, please contact Marnie Freer.

Alberta AMD Chapter 7 Calibration Draft Amendment Posted

     Posted by LEHDER News on

Environment and Parks has amended AMD Chapter 7 Calibration based on feedback received from airsheds. A draft has been posted to the AMD website for 60-day public review. Comments/feedback must be submitted by June 27, 2018 to AMDFeedback@gov.ab.ca.

Chapter 7 Calibration is applicable to anyone who conducts continuous ambient air monitoring. The chapter sets out the minimum requirements for calibration of continuous ambient air analyzers and meteorological sensors. Section 1.1 “Amendments” outlines what changes have been made in this draft. You can access the draft from the AMD Public Review website: http://aep.alberta.ca/air/legislation-and-policy/air-monitoring-directive/amd-public-review.aspx.

As well, you can access a recording of the April 17th AMD Q&A Webcast from the AMD website homepage: http://aep.alberta.ca/air/legislation-and-policy/air-monitoring-directive/

The questions asked during the webcast, as well as some that came in via email after the webcast, have been posted with responses.

Air Monitoring Directive - Feedback
Air Policy | Alberta Environment and Parks
1st flr, Oxbridge Place, 9820 - 106 Street,
Edmonton AB T5K 2J6 | Tel: 780-427-6873

Recent EBR Decisions - Cumulative Effects, ACB List and Toxics Reduction Act/O. Reg. 455/09

     Posted by LEHDER News on

The MOECC has posted multiple decisions recently to the Environmental Registry of Ontario (ERO, formerly referred to as the Environmental Registry, or EBR).  A brief overview and links to the appropriate documents/ ERO postings are available below.

Amendments to Ontario Regulation 455/09 and Creation of a New Services Documents Regulation under the Toxics Reduction Act

Decision Posted: April 24, 2018
ERO Number: 012-8583

Decision Summary

We have changed when facilities have to review their toxic reduction plans. This will help to align the first two plan reviews with federal timelines and ensure facilities plan and report on current and relevant toxic substances. We also made a new regulation to provide more options to serve documents making it consistent with other regulations.

The full EOR posting is available at https://ero.ontario.ca/notice/012-8583?mc_cid=3b1a5feaf0&mc_eid=4e23b95e90

Cumulative Effects Assessment in Air Approvals

Decision Posted: April 26, 2018
ERO Number: 013-1680

Decision Summary

We have a new policy to improve how we consider cumulative impacts from multiple air pollution sources. The policy applies to air emissions of benzene and benzo[a]pyrene in the Hamilton/Burlington area and benzene in the Sarnia/Corunna area.

Note: This will guide decisions on ECAs for new or expanding facilities and will apply to all ECA applications submitted after October 1, 2018.

The full ERO posting is available at https://ero.ontario.ca/notice/013-1680; a copy of the policy is also provided below.

Cumulative Effects Assessment (CEA) in Air Approvals Cumulative Effects Assessment (CEA) in Air Approvals (118 KB)

New/Updated Screening Levels for the Air Contaminants Benchmarks (ACB) List

Decision Posted: April 27, 2018
ERO Number: 013-2207

Decision Summary

We have updated the Air Contaminants Benchmarks (ACB) list with new or updated screening levels for over 4,500 air contaminants.

Note: This update to the ACB list also includes the new and updated air standards for sulphur dioxide, announced on March 20, 2018 (ERO# 013-0903)

The full ERO posting is available at https://ero.ontario.ca/notice/013-2207


AWMA Breakfast Session May 2, 2018 - 2018 NPRI Reporting Requirements

     Posted by LEHDER News on

AWMA Ontario SectionLEHDER is pleased to be hosting the AWMA Breakfast Series teleconference session on May 2, 2018. 

The Sarnia Breakfast will teleconference into the session taking place in Ottawa.  

The 2018 NPRI Reporting Requirements session will be presented by Jeff Gleeson, P. Eng., Senior Program Engineer with Environment and Climate Change Canada.

This presentation will discuss the 2018 reporting requirements for the National Pollutant Release Inventory and how the data collected from industry is used.


Sign-In and Breakfast - 7:30 A.M. (Please email us with any food allergies or restrictions one week prior to your registered session).

Presentation - 7:45 A.M. until 9:30 A.M.

LEHDER Environmental Services Limited
Suite 210, 704 Mara Street
Point Edward, Ontario
N7V 1X4
Contact: Shawna Graham
Tel: 519-336-4101 ext 252
$25 AWMA Member
$35 Non-member
$10 AWMA Student Member
$20 Student Non-Member
$5 No prior notification surcharge


For additional information and to register for this session, please visit:

2018 NPRI Reporting Requirements

Online registration requires payment via PayPal.   You may also pay cash at the door; funds will be forwarded to AWMA and a receipt will be provided.  To prevent the "$5 no prior notification surcharge" please email us if you are attending so the necessary arrangements can be made.