Twenty homes in the Griesbach neighbourhood are flooded with sewage and rainwater, EPCOR says.

Some houses near 153 Avenue have been flooded since Friday evening, and residents of three condominiums on 107 Street were evacuated that night.

EPCOR told CTV News Edmonton it responded to the situation as quickly as possible, but that residents should have called 311.

"We truly understand this is a terrible situation and a big inconvenience for a lot of customers but we are working as quick as we can," said Anthony Nardi of EPCOR Drainage Operations.

The company does not have a timeline to clean the water up.

“They couldn’t tell me anything, they couldn’t tell me if it was safe or not to stay here. They couldn’t tell me whether it would be dealt with today, tomorrow, next week,” said Griesbach resident Brandon Rideout.

The company does not have a timeline to clean the water up.

With files from CTV Edmonton's Timm Bruch