Water levels in the Oldman River reservoir are the lowest they've ever been since its construction in the early 1990s. The reservoir and the river are responsible for supplying water to a number of local communities, including Lethbridge. The City of Lethbridge said in a release that while there's no immediate danger of being left without an adequate supply of drinkable water in the city, the lower-than-average water levels across southern Alberta is something they are watching closely.