Environment workers are trying to contain a black slick discovered on Dodds Lake in Innisfail.
The province says it learned Friday morning of the spill of unknown hydrocarbons on the small lake, a popular swimming and water-skiing spot.
Officials say the slick stretches about 15 metres and appears to have come from a drainage culvert.
Firefighters are using booms to stop the leak and prevent the slick from spreading.
Hydrocarbons can include oil and gas.
Katrina Bluetchen, spokesperson with Alberta Environment and Sustainable Resource Development, said the department will be involved until the situation is under control and remediation is well underway and they are satisfied everything is good.
“Our folks are there right now as are the first responders from Innisfail trying to contain the spill and begin their work of cleaning it up,” Bluetchen said Friday afternoon.
“The town is already quite busy trying to trace the source.”