Our System

The Authority delivers finished water to its 13 wholesale customers through a more than 200-mile transmission system. The system consists of water mains ranging in size from 20 to 54-inch with nearly half of the pipe being 36-inch. This shared water transmission network is fed from both the Quarles and Wyckoff Water Treatment Plants, allowing for flexibility.

Authority staff constantly monitors system pressures, tank levels and bacterial sampling points to determine any transmission problems or potential contamination of the system. The transmission system, including connections to outside customers, lies entirely within Cobb County, with water storage facilities located throughout the County for demand equalization, fire protection, and emergency conditions.