A water main break in west Edmonton has left some homes without water.

The break happened around 10 a.m. Monday at 151st Street and 87th Avenue.

Three blocks were originally affected along 151st Street. Water is now off for just one of those blocks, affecting 20 customers.

"They will be without water for some time, while we expose the ground and look at the pipe and determine what repairs need to be conducted," said EPCOR spokeswoman Sarah Doyle.

"We have brought out an emergency water tank to the area so that those customers can have access to fresh, clean water."

Doyle isn't sure when the repairs will be completed. She expects the affected customers will not have water service for at least the rest of the day.