| McDonald Lake | |
|---|---|
| Rafferty Reservoir | |
&sq=Facebook&lang=en&file=File:ISS-61_McDonald_Lake_in_Saskatchewan,_Canada.jpg) McDonald Lake as seen from the ISS | |
&sq=Facebook&lang=en&file=File:Canada_Saskatchewan_relief_location_map.jpg)  McDonald Lake Location in Saskatchewan &sq=Facebook&lang=en&file=File:Canada_relief_map_2.svg) McDonald Lake McDonald Lake (Canada) | |
| Coordinates | 49°11′38″N 103°14′17″W / 49.194°N 103.238°W |
| Type | Reservoir |
| Primary inflows | Souris River and a 10-km diversion channel connecting Boundary and Rafferty Reservoirs, which allows water to be diverted from Boundary Reservoir into McDonald Lake. |
| Primary outflows | Souris River |
| Catchment area | 2,448 km2 (945 sq mi) |
| Managing agency | Saskatchewan Water Security Agency |
| Built | July 1, 1991 |
| Max. length | 57 km (35 mi) |
| Max. width | 1.2 km (0.75 mi) |
| Surface area | 4,341.3 ha (10,728 acres)[1] |
| Max. depth | 15 m (49 ft) |
| Water volume | 439,600 dam3 (356,400 acre⋅ft) |
| Surface elevation | 556 m (1,824 ft) |
| References | [2] |
McDonald Lake, also known as Rafferty Reservoir, is a reservoir in the south-eastern part of the Canadian province of Saskatchewan.[3] It was created when the Rafferty Dam was built on the Souris River in 1994. Before the dam was built that flooded the Souris Valley, McDonald Lake was a small lake and marsh on the valley floor adjacent to the Souris River.
The reservoir provides water to the Shand Power Station and to the city of Estevan. A 10-kilometre long pipeline supplies the power station and a 9.2-kilometre long pipeline, which originates along the Souris River river bed at the bottom of the reservoir, brings water to the Estevan water treatment plant. The water pipeline that brings water to Estevan was completed in 2020 after a three-year project that changed the source of Estevan's drinking water away from Boundary Dam Reservoir.[4]
- ^ "McDonald Lake". Angler's Atlas. Retrieved 21 March 2024.
- ^ "McDonald Lake". Mapcarta.
- ^ "McDonald Lake". Canadian Geographical Names Database. Government of Canada. Retrieved 1 May 2023.
- ^ Florizone, Alaura (16 July 2020). "Ceremony for the New Waterline at Rafferty Dam". Discover Estevan. Retrieved 21 March 2024.