Eastmain-1-A/Sar celle/Ruper t Hydr oelectric Development INFORMATION BULLETIN NO. 3 JANUARY 2011
Increased Flow Sector Boyd Lake and Sakami Lake After the partial diversion of the Rupert River
Before the partial diversion of the Rupert River
300 m3/s
300 m3/s
hway ïga hig a t s n a Tr
hway ïga hig a t s n a Tr
Boyd Lake
Outflow from Sarcelle powerhouse
0
15 km
Lambert, NAD83
Sakami Lake
es
Natural inflows to Lac Boyd and Lac Sakami
Sarcelle powerhouse (under construction) Opinaca reservoir
m Baie- Ja
m Baie- Ja
es
Sakami Lake
Natural inflows to Lac Boyd and Lac Sakami
Boyd Lake
Outflow from Sarcelle powerhouse
0
15 km
Lambert, NAD83
= 100 m3
Sarcelle powerhouse (under construction) Opinaca reservoir
Before the partial diversion of the Rupert River
After the partial diversion of the Rupert River
The outflow from the Sarcelle powerhouse spillway ± 900 m3/s. The natural inflows (i.e., the water from nearby mountains and rivers) to Lac Boyd and Lac Sakami is ± 170 m3/s. The total flow at the Lac Sakami weir was hence ± 1,070 m3/s.
The outflow from the Sarcelle powerhouse spillway after the Ruper t diversion is ± 1,350 m3/s. Since the natural inflows to Lac Boyd and Lac Sakami are ± 170 m3/s, the total flow after the Ruper t diversion is ± 1,520 m3/s at the Lac Sakami weir.
Did you know ... A trailer truck is the equivalent of 100 m3 of water.
Year 2010 Due to unusual weather conditions (there was little precipitation and natural inflows were low), 2010 cannot be considered a reference year.
Note: Averages are provided for information purposes, to facilitate understanding. Flow data vary from year to year.
Information about the impact of hydroelectric developments on the territory.
Water level at Boyd Lake Average after diversion = ± 2.0 ft. (0,6 m) Average before diversion = 656.2 ft. (200 m)
Note: Averages are provided for information purposes, to facilitate understanding. Water level data vary from year to year.
Water level at Sakami Lake Maximum 612 ft. (186,5 m) Average after diversion ± 1.2 ft. (0,4 m) Average before diversion 607.9 ft. (185,3 m) Minimum 602,7 ft. (183,7 m)
Note: Averages are provided for information purposes, to facilitate understanding. Water level data vary from year to year.
Information : MARTIN DESGAGNÉ, Advisor – Aboriginal Affairs and Project Follow-Up, 1 800 903-9705, ext. 4951 This bulletin was published by the Direction régionale – La Grande Rivière, Hydro-Québec. Ce document est également publié en français.
Information about the impact of hydroelectric developments on the territory.