Public Notice

February 12, 2004

IJC invites public comment on peaking and ponding in St. Marys River

The International Joint Commission (IJC) is considering granting the Edison Sault Electric Company and Great Lakes Power Ltd. the authority to conduct peaking and ponding operations in the St. Marys River, under the supervision of the IJC’s International Lake Superior Board of Control (the Board of Control), until March 20, 2006.

Peaking and ponding operations are carried out by the power companies to store water during times of off-peak demand and increase hydroelectric power generation during times of on-peak demand. Peaking is the variation of hourly flows within the daily average flow while ponding is the variation of daily flows within the weekly average flow (i.e. higher weekday flows and lower weekend flows).

Additional information, including information on impacts, is contained in a January 27, 2004 report to the IJC by its International Lake Superior Board of Control on peaking and ponding operations during 2003. The report may be downloaded from the IJC’s website (, or requested from one of the offices below.

Before deciding whether to extend the authority for peaking and ponding operations for an additional two years, the IJC invites public comment. Comments may be submitted to either address below for receipt by March 12, 2004:

Lisa Bourget
U.S. Section Secretary
International Joint Commission
1250 23rd Street NW, Suite 100
Washington, DC 20440
Telephone: (202) 736-9000
Fax: (202) 467-0746
Murray Clamen
Canadian Section Secretary
International Joint Commission
234 Laurier Avenue West, 22nd Floor
Ottawa, ON K1P 6K6
Telephone: (613) 995-2984
Fax: (613) 993-5583

The International Joint Commission is an international organization established by the Boundary Waters Treaty of 1909 to prevent and resolve disputes over the use of waters shared by the United States and Canada. More information is available on the IJC’s website at:

News Room         Top of Page