Too much water on order can lower Lake Lanier

Ordering more river water than utilities need can mean unnecessary dam releases—and a lower Lake Lanier. That warning sits inside the regional agreement behind Atlanta’s proposal to spend up to $90,688.81 on water-demand forecasting and coordination.⁠[1][2]

Ordinance 26-O-1641, listed for first reading at the November 10 City Utilities Committee meeting, would authorize the mayor or a designee and the Atlanta-Fulton County Water Resources Commission to enter an agreement with the Atlanta Regional Commission. The city’s proposed share covers January 1, 2026, through December 31, 2028.⁠[2][3][4]

The regional agreement also names DeKalb County and the Cobb County-Marietta Water Authority. Participants would provide weekly forecasts, a Monday forecast update and daily reports of the previous day’s actual withdrawals. ARC would relay their weekly water requirements to the federal government and Georgia Power to help inform dam-release decisions.⁠[1]

The goal is to request releases from Buford Dam only when needed and, when possible, schedule them during peak electricity demand. Payments under the agreement would also support U.S. Geological Survey stream gauges on Suwanee Creek near Suwanee and Sope Creek near Marietta, Georgia.⁠[1]

It is coordination, not a water guarantee. The agreement says ARC makes no representation about water quality or availability, and participants gain no right to a fixed water level along the Chattahoochee River.⁠[1]

The committee packet lists City Council consideration as pending for November 16. The records reviewed do not establish final approval or an executed Atlanta agreement; the ordinance would require legal approval, the mayor’s signature, clerk attestation and delivery to ARC before the agreement binds the city.⁠[2]