Atlanta’s Department of Watershed Management announced water service would be halted at 5 p.m. Friday in much of Atlanta, including all of downtown, so crews can work to repair breaks on a 48-inch and 36-inch transmission line “that carries large volumes of water to the metropolitan area.”

Just after 2 p.m., the Watershed Management Department issued a boil water advisory “out of an abundance of caution.” The advisory affects any Atlanta water customers who have experienced a water outage or low water pressure. The order was still in place on Sunday afternoon, even though repairs were completed on the major break near Joseph E. Boone Boulevard. Other repairs were continuing.

The Georgia Environmental Protection Division will advise the city when the boil water advisory can be lifted, the city said. Watershed crews have sampled the water to make sure there is no contamination.