NEWS RELEASEINTERNATIONAL
LAKE SUPERIOR
BOARD OF CONTROL
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The International Lake Superior Board of Control, under authority granted to it by the International Joint Commission, has set the Lake Superior outflow to 1,560 cubic meters per second (m3/s) (55.1 thousand cubic feet per second (tcfs)) for the month of January, effective January 1,2012.
This is the same as the December outflow.
This outflow is as prescribed by Plan 1977-A.
The January outflow will be released by discharging about 1,462 m3/s (51.6 tcfs) through the three hydropower plants and passing most of the remaining flow through the control structure at the head of the St. Marys rapids.
The gate setting of the control structure will be maintained at the existing setting equivalent to one-half gate open (four gates open 20 centimeters (cm), or about 8 inches each).
There will be no change to the setting of Gate No. 1 that supplies the Fishery Remedial Works.
This past month the water supply to the Lake Superior basin was below average and that to the Lakes Michigan-Huron basin was above average.
Lake Superior is currently 14 cm (6 inches) below chart datum level.
The level of Lake Superior is expected to decline in January.
Currently, the Lake Superior level is about 31 cm (12 inches) below its long-term average beginning-of-January level, and is 4 cm (2 inches) higher than the level recorded a year ago.
This past month the level of Lake Superior fell 8 cm (3 inches), while on average it falls 7 cm (3 inches) in December.
The level of Lakes Michigan-Huron declined 2 cm (1 inch), while on average it falls 5 cm (2 inches) in December.
The level of Lakes Michigan-Huron is now about 29 cm (11 inches) below its long-term average beginning-of-January level, and is 18 cm (7 inches) higher than it was a year ago.
Currently Lakes Michigan-Huron is 2 cm (1 inch) above its chart datum level.
The level of Lakes Michigan-Huron is expected to decline in January.
The board continues to monitor conditions both on Lake Superior and downstream and will advise the International Joint Commission accordingly on those conditions.
COL(P) Margaret Burcham is the United States board member.
Mr. David Fay is the board member for Canada.
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BOARD OF CONTROL
************************
The International Lake Superior Board of Control, under authority granted to it by the International Joint Commission, has set the Lake Superior outflow to 1,560 cubic meters per second (m3/s) (55.1 thousand cubic feet per second (tcfs)) for the month of January, effective January 1,2012.
This is the same as the December outflow.
This outflow is as prescribed by Plan 1977-A.
The January outflow will be released by discharging about 1,462 m3/s (51.6 tcfs) through the three hydropower plants and passing most of the remaining flow through the control structure at the head of the St. Marys rapids.
The gate setting of the control structure will be maintained at the existing setting equivalent to one-half gate open (four gates open 20 centimeters (cm), or about 8 inches each).
There will be no change to the setting of Gate No. 1 that supplies the Fishery Remedial Works.
This past month the water supply to the Lake Superior basin was below average and that to the Lakes Michigan-Huron basin was above average.
Lake Superior is currently 14 cm (6 inches) below chart datum level.
The level of Lake Superior is expected to decline in January.
Currently, the Lake Superior level is about 31 cm (12 inches) below its long-term average beginning-of-January level, and is 4 cm (2 inches) higher than the level recorded a year ago.
This past month the level of Lake Superior fell 8 cm (3 inches), while on average it falls 7 cm (3 inches) in December.
The level of Lakes Michigan-Huron declined 2 cm (1 inch), while on average it falls 5 cm (2 inches) in December.
The level of Lakes Michigan-Huron is now about 29 cm (11 inches) below its long-term average beginning-of-January level, and is 18 cm (7 inches) higher than it was a year ago.
Currently Lakes Michigan-Huron is 2 cm (1 inch) above its chart datum level.
The level of Lakes Michigan-Huron is expected to decline in January.
The board continues to monitor conditions both on Lake Superior and downstream and will advise the International Joint Commission accordingly on those conditions.
COL(P) Margaret Burcham is the United States board member.
Mr. David Fay is the board member for Canada.
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