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EWL Management Ltd

500 Centre Street SE, Alberta
Formerly	Conwest Exploration Alberta Energy Company AEC West Encana
Industry	Mining
Predecessor	2013568239 Alberta Ltd
Founded	October 17, 2007
Defunct	February 22, 2022
Headquarters	500 Centre Street SE, Calgary
Number of locations	5
Key people	Dave Lye, President (as of 2014)
Total assets	Madawaska Mine Dyno Mine Greyhawk Mine Coldstream Copper Mine Gordon Lake Mine
Parent	Ovintiv

The successor of multiple historical Canadian mining and energy companies, EWL Management Limited was an Alberta based corporation that owned five decommissioned mines in Ontario, including three former uranium mines.

The company was one of seven companies in Canada which managed decommissioned uranium mines and, as of 2016, held 2% of all uranium tailings in Canada.

The company was a subsidiary of Ovintiv, and dissolved into Ovintiv in February 2022.

Corporate history

In 1996, Conwest Exploration Company Limited was acquired by Alberta Energy Company, which became AEC West. AEC became Encana with legacy mines being moved into the holding of subsidiary EWL Management.

The company was registered on October 17, 2007 in Alberta, originally as 356823 Alberta Ltd, changing its name to EWL Management Limited in 2009.

Encanada, and EWL, became part of Ovintiv in 2019, and is now known as Ovintiv Canada ULC.

Assets

EWL Management Limited owned five decommissioned mines in Ontario:

• Madawaska Uranium Mine, Bancroft,
• Dyno Uranium Mine, Bancroft,
• Greyhawk Uranium Mine, Bancroft,
• Coldstream Copper Mine, Burchell Lake Area, Thunder Bay, and
• Gordon Lake Mine, near Werner Lake in the Kenora District.

The company managed 4,600,000 tonnes of uranium tailings at former mines, which in 2016 represented 2% of all uranium tailings in Canada.

Operations

Since two of EWL's mines contaminated local groundwater, EWL were rehabilitating mines to meet provincial water safety standards. This included rehabilitating two tailing management areas at Madawaska Mine. The rehabilitation was managed by Golder Associates with the aim to make the site compliant with Canada's Nuclear Safety and Control Act and Ontario's Mining Act.

Dissolution

EWL dissolved into Ovintiv in on February 22, 2022. The Canadian Nuclear Safety Commission obliged Ovintiv to meet the licensing requirements of the two licenses WNSL-W5-3101.1/2034 and WNSL-W5-3100.0/2036.

See also

• Mining in Canada
• Uranium mining in the Bancroft area

References

1. "ENVIRONMENTAL COMPLIANCE APPROVAL, NUMBER 1402-BKZM2H" (PDF). Government of Ontario. 30 May 2020.
2. "Mount Polley spill spurs CNSC order to check uranium ponds". CBC. 19 Aug 2014. Archived from the original on 8 December 2021. Retrieved 8 December 2021.
3. "Seventh Canadian National Report for the Joint Convention". Canadian Nuclear Safety Commission. 2021-05-03. Archived from the original on 2021-12-08. Retrieved 2021-12-08.
4. ^ "Institute on Lake Superior Geology: Proceedings, 2012". Lakehead University. 2012. Archived from the original on 2021-05-06. Retrieved 2022-01-22.
5. "Revocation of the Current Licence for the Madawaska Mine" (PDF). 28 July 2011. Archived from the original (PDF) on 12 November 2013.
6. "Ewl Management Ltd. was Incorporated in Alberta on Oct 17, 2007. at 1800, 855-2ND STREET SW, CALGARY ALBERTA, T2P 2S5". Alberta Corporations. Archived from the original on 2021-10-10. Retrieved 2021-10-10.
7. "ENVIRONMENTAL COMPLIANCE APPROVAL, NUMBER 1402-BKZM2H" (PDF). Ontario Ministry of the Environment, Conservation and Parks. May 30, 2020. Retrieved 2021-10-10.
8. Dawson, Tyler (October 31, 2019). "As Encana becomes Ovintiv, the rebrand begs a question: What the hell is an Ovintiv?". Financial Post.
9. ^ "Regulatory Action – Ovintiv Canada ULC". Canadian Nuclear Safety Commission. 2022-05-19. Archived from the original on 2022-06-23. Retrieved 2022-06-23.
10. EWL Legacy Mine Properties Perpetual Management Strategy, Presentation Slides by EnCanada, Global Nuclear Safety and Security Network, Accessed 2021-10-10 (archive link)
11. "Record of Proceedings, Revocation of Current License for the Madawaska Mine" (PDF). Canadian Nuclear Safety Commission. Archived (PDF) from the original on 2021-10-09. Retrieved 2021-10-10.
12. ^ "3 decommissioned uranium mines near Bancroft, Ont. deemed protected, no health impacts: study - Peterborough | Globalnews.ca". Global News. Archived from the original on 2023-03-18. Retrieved 2021-10-10.
13. ^ "Sampling near old mine sites finds 'no expected health impacts'". Haliburton Echo. 2020-10-06. Archived from the original on 2023-03-18. Retrieved 2021-10-10.
14. "Decommissioning Projects - Canada". www.wise-uranium.org. Archived from the original on 2023-03-18. Retrieved 2021-12-08.
15. ^ Inventory of RADIOACTIVE WASTE in CANADA 2016 (PDF). 2016. ISBN 978-0-660-26339-7. Archived (PDF) from the original on 2021-12-08. Retrieved 2021-12-08. {{cite book}}: |website= ignored (help)
16. ^ "EWL Legacy Mine Properties Perpetual Management Strategy" (PDF). Archived from the original (PDF) on 2022-01-05.
17. "Inventory of RADIOACTIVE WASTE in CANADA" (PDF). Natural Resources Canada. 2016. Archived (PDF) from the original on 2021-12-08. Retrieved 2021-12-08.
18. Bin Daud, Mohamad (June 1980). A Study of Uranium in Ground Water Around Greyhawk Mine, Bancroft, Ontario. McMaster University (thesis). Archived from the original on 2023-03-18. Retrieved 2021-12-08.
19. Veska, E. (Waterloo Univ., Ontario (Canada)); Cherry, J.A. (Waterloo Univ., Ontario (Canada)); Sharma, H.D. (Waterloo Univ., Ontario (Canada)) (October 1983). "Origin and subsurface migration of radionuclides from waste rock at an abandoned uranium mine near Bancroft, Ontario". University of Ottawa. Archived from the original on 2021-11-25. Retrieved 2021-12-08 – via Atomic Energy Control Board, Ottawa, Ontario (Canada).{{cite journal}}: CS1 maint: multiple names: authors list (link)
20. ^ "Independent Environmental Monitoring Program: Dyno, Bicroft, and Madawaska Mines". Canadian Nuclear Safety Commission. 2020-09-21. Archived from the original on 2020-11-01. Retrieved 2021-12-08.
21. "Revocation of the Current Licence for the Madawaska Mine" (PDF). Canadian Nuclear Safety Commission. 29 Jul 2011. Archived (PDF) from the original on 8 December 2021. Retrieved 8 December 2021.
22. Safety Commission, Canadian Nuclear (2020-09-21). "Independent Environmental Monitoring Program: Dyno, Bicroft, and Madawaska Mines". nuclearsafety.gc.ca. Archived from the original on 2020-11-01. Retrieved 2021-10-10.
23. ^ "PROJECT PROFILE, Decommissioned Madawaska Mine Site" (PDF). November 16, 2017. Archived (PDF) from the original on 2022-02-04. Retrieved 2021-10-10.
24. ^ Canadian Nuclear Safety Commission, Order Under Section 25 or Paragraph 37(2)(f) of the Nuclear Safety Control Act, 6 May 2022. (archive)

• Business
• Canada
• Environment

External links

• Order Under Section 35 or Paragraph 37(2)(f) Of the Nuclear Safety And Control Act (6 May 2022) Canadian Nuclear Safety Commission

• Uranium mining companies of Canada
• Canadian companies established in 2007
• 2007 establishments in Alberta
• Companies based in Alberta
• EWL Management Limited
• Canadian companies disestablished in 2022
• 2022 disestablishments in Alberta
• Ovintiv