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Notice of Application
OSCA Application No.  1943374
OSCA Application No.  1943376
EPEA Application No. 062-00000026
Syncrude Canada Limited 
Mildred Lake and Aurora North Updated Tailing Management Plans  

The Alberta Energy Regulator (AER) has received Oil Sands Conservation Act (OSCA) Applications 1943374 and 1943376, and Environmental Protection and Enhancement Act (EPEA) Application No. 062-00000026, from Syncrude Canada Limited (Syncrude).  The AER is reviewing the applications together with the supporting documents.

This notice also sets out the deadline for filing a statement of concern under the section How to File a Statement of Concern.

Description of the Applications
Syncrude has applied under the OSCA and EPEA to amend their Tailings Management Plan. The 2023 Tailings Management Plan applications reflect proposed changes to both the Mildred Lake and Aurora North sites integrated mine, tailings, and closure plans. Syncrude has also submitted their Life of Mine Closure Plan pursuant to subsection 7.3.8 of EPEA approval 00000026-00-00, which is being reviewed concurrently.

The project is located about 35 kilometres (km) north of the city of Fort McMurray and 15 km south of the hamlet of Fort MacKay.

For a copy of the applications, contact
Syncrude Canada Ltd.
P.O. Bag 4009, Mail Drop Y201
Fort McMurray, Alberta  T9H 3L1
Attention:  Silcar Roache
Telephone: 825-409-8336
Email: @email

To receive a copy of the applications and supporting documents, submit an information request, as outlined at, to

AER Information Distribution Services
Suite 1000, 250 – 5 Street SW
Calgary, Alberta  T2P 0R4
Telephone: 1-855-297-8311
(toll free; option 0)

Requirement to File a Statement of Concern
If you have concerns with these applications, you must file a statement of concern as described below. If you do not file a statement of concern, the AER may approve the applications without further notification.

How to File a Statement of Concern
For your submission to be considered a valid statement of concern, it must be filed by 11:59 p.m. on August 14, 2023. Send one copy of your statement of concern to Syncrude Canada Ltd. at the name and address above and one copy either online via the AER’s web-based form or by mail or email:


Mail or email:
Regulatory Applications
Alberta Energy Regulator
Suite 1000, 250 – 5 Street SW
Calgary, Alberta T2P 0R4
Fax: 403-297-7336
Email: @email

Contents of a Statement of Concern
For your submission to be considered a valid statement of concern, it must include

  1. why you believe that you may be directly and adversely affected by a decision of the AER on the applications;
  2. the nature of your objection to the applications;
  3. the outcome of the applications that you advocate;
  4. the location of your land, residence, or activity in relation to the location of the energy resource activity that is the subject of the applications; and
  5. your contact information, including your name, address in Alberta, telephone number, and email address or, if you do not have an email address, your fax number.

 The AER also requests that you include the application number in your statement of concern.

Section 49 of the Alberta Energy Regulator Rules of Practice (Rules of Practice) requires that all documents and information filed in a proceeding be placed on the public record. If you file a submission, you must not include any personal information that you do not want to appear on or are not authorized to put on the public record. Section 49(2) of the Rules of Practice states how to apply to the AER for an order to keep information confidential. The Rules of Practice is available on the AER website at

Submissions relating exclusively to compensation for land use are not dealt with by the AER and should be referred to the Land and Property Rights Tribunal (formerly the Surface Rights Board).

Under section 21 of the Responsible Energy Development Act, the AER does not have the jurisdiction to assess the adequacy of Crown consultation associated with the rights of aboriginal peoples as recognized and affirmed under the Constitution Act, 1982.

For information on AER procedures, contact the authorizations specialist, Rachel McMillan, by phone at 780-642-9114 or by email to @email

Issued at Calgary, Alberta, on June 26, 2023