EWL Management Ltd
Former nameConwest Exploration · Alberta Energy Company · AEC West · Encana
IndustryMining
Predecessor2013568239 Alberta Ltd
FoundedOctober 17, 2007
DefunctFebruary 22, 2022
Hq location500 Centre Street SE
Hq location cityCalgary
Num locations5
Key peopleDave Lye, President (as of 2014)
AssetsMadawaska Mine
Dyno Mine
Greyhawk Mine
Coldstream Copper Mine
Gordon Lake Mine
ParentOvintiv
Websiteewlimited.com

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.[1]

The company was one of seven companies in Canada which managed decommissioned uranium mines[2][3] 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.[4] AEC became Encana with legacy mines being moved into the holding of subsidiary EWL Management.[4][5]

The company was registered on October 17, 2007, in Alberta, originally as 356823 Alberta Ltd, changing its name to EWL Management Limited in 2009.[6][7]

Encanada, and EWL, became part of Ovintiv in 2019,[4][8] and is now known as Ovintiv Canada ULC.[9]

Assets

EWL Management Limited owned five decommissioned mines in Ontario:[10][11]

The company managed 4,600,000 tonnes of uranium tailings at former mines, which in 2016 represented 2% of all uranium tailings in Canada.[17]

Operations

Since two of EWL's mines contaminated local groundwater,[18][19][20][21] EWL were rehabilitating mines to meet provincial water safety standards.[12][13][20] This included rehabilitating two tailing management areas at Madawaska Mine.[22][23] 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.[23]

Dissolution

EWL dissolved into Ovintiv in on February 22, 2022.[9][24] 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.[24]

See also

References

  1. ^ "ENVIRONMENTAL COMPLIANCE APPROVAL, NUMBER 1402-BKZM2H". Government of Ontario. 30 May 2020.
  2. ^ "Mount Polley spill spurs CNSC order to check uranium ponds". CBC. 19 Aug 2014. Archived 8 December 2021 at the Wayback Machine. Retrieved 8 December 2021.
  3. ^ "Seventh Canadian National Report for the Joint Convention". Canadian Nuclear Safety Commission. 2021-05-03. Archived 2021-12-08 at the Wayback Machine. Retrieved 2021-12-08.
  4. ^ "Institute on Lake Superior Geology: Proceedings, 2012". Lakehead University. 2012. Archived 2021-05-06 at the Wayback Machine. Retrieved 2022-01-22.
  5. ^ "Revocation of the Current Licence for the Madawaska Mine". 28 July 2011. Archived from the original 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 2021-10-10 at the Wayback Machine. Retrieved 2021-10-10.
  7. ^ "ENVIRONMENTAL COMPLIANCE APPROVAL, NUMBER 1402-BKZM2H". 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 2022-06-23 at the Wayback Machine. 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". Canadian Nuclear Safety Commission. Archived 2021-10-09 at the Wayback Machine. Retrieved 2021-10-10.
  12. ^ "3 decommissioned uranium mines near Bancroft, Ont. deemed protected, no health impacts: study - Peterborough | Globalnews.ca". Global News. Archived 2023-03-18 at the Wayback Machine. Retrieved 2021-10-10.
  13. ^ "Sampling near old mine sites finds 'no expected health impacts'". Haliburton Echo. 2020-10-06. Archived 2023-03-18 at the Wayback Machine. Retrieved 2021-10-10.
  14. ^ "Decommissioning Projects - Canada". www.wise-uranium.org. Archived 2023-03-18 at the Wayback Machine. Retrieved 2021-12-08.
  15. ^ "Inventory of RADIOACTIVE WASTE in CANADA 2016". Natural Resources Canada. 2016. ISBN 978-0-660-26339-7. Archived 2021-12-08 at the Wayback Machine. Retrieved 2021-12-08.
  16. ^ "EWL Legacy Mine Properties Perpetual Management Strategy". Archived from the original on 2022-01-05.
  17. ^ "Inventory of RADIOACTIVE WASTE in CANADA". Natural Resources Canada. 2016. Archived 2021-12-08 at the Wayback Machine. Retrieved 2021-12-08.
  18. ^ Bin Daud, Mohamad (June 1980). "A Study of Uranium in Ground Water Around Greyhawk Mine, Bancroft, Ontario" (thesis). McMaster University. Archived 2023-03-18 at the Wayback Machine. 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 2021-11-25 at the Wayback Machine. Retrieved 2021-12-08. – via Atomic Energy Control Board, Ottawa, Ontario (Canada)
  20. ^ "Independent Environmental Monitoring Program: Dyno, Bicroft, and Madawaska Mines". Canadian Nuclear Safety Commission. 2020-09-21. Archived 2020-11-01 at the Wayback Machine. Retrieved 2021-12-08.
  21. ^ "Revocation of the Current Licence for the Madawaska Mine". Canadian Nuclear Safety Commission. 29 Jul 2011. Archived 8 December 2021 at the Wayback Machine. 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 2020-11-01 at the Wayback Machine. Retrieved 2021-10-10.
  23. ^ "PROJECT PROFILE, Decommissioned Madawaska Mine Site". November 16, 2017. Archived 2022-02-04 at the Wayback Machine. 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)