A news conference is scheduled for 11:25 a.m. Tuesday at the Shirley C. Franklin Pumping Station in northwest Atlanta.

City officials estimate repairing and replacing thousands of pipes will take two decades and cost upwards of $2 billion.

Water main breaks are a frequent problem across the city, as many of the system’s pipes are more than 100 years old.

The Emerald Necklace Conservancy is making few friends with its legal challenge to White Stadium. But it says it’s worth it to defend Franklin Park.