ACT Litigation and Updated Water Control Manual

NOTICE

ARC statement on the Landmark Apalachicola-Chattahoochee-Flint Agreement

This is a win-win solution that establishes a clear path to resolve the decades-long dispute over our shared water resources. We appreciate the leadership of Governor Kemp and Governor Ivey and the willingness of all parties to find common ground.

As leaders in water stewardship, we are gratified the parties have come together on an agreement that both protects metro Atlanta’s water supply and provides the downstream flows Alabama requested. We look forward to participating in the Corps’ public comment and environmental review process and are eager to find new opportunities to collaborate outside of the courtroom.

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The Cobb County-Marietta Water Authority (CCMWA), City of Cartersville, and Bartow County rely on Allatoona Lake to meet their municipal and industrial water supply needs. CCMWA withdraws water stored in Allatoona Lake under a storage contract it signed in 1963, which lets CCMWA store up to 13,140 acre-feet of water in the reservoir. (An acre-foot is the volume of water required to cover one acre in water one foot deep, or about 325,851 gallons.) The City of Cartersville has two contracts with the Corps (one signed in 1966 and another signed in 1993), which give it the right to store up to 6,371 acre-feet of water in Allatoona Lake.

In 1981, CCMWA requested to contract for more storage in Allatoona Lake, asking the Corps to move forward “as rapidly as possible” on the request. The Corps completed its review of CCMWA’s request in 1989. At that time, the Corps proposed to “reallocate” 34,864 acre-feet of storage in Allatoona Lake so it could be used by CCMWA and others for water supply storage. The Corps’ proposal was based on an environmental study and its determination that there would “be no significant environmental impacts.”

Alabama sued the Corps in 1990 to block it from finalizing the plan. Like the ACF litigation filed by Alabama, Florida, and others, Alabama’s claims in the ACT Basin were ultimately dismissed in 2012.

In the intervening years, CCMWA and its retail customers worked to reduce water supply needs through conservation. CCMWA also invested heavily in projects to generate “made inflows” to increase the amount of water available from CCMWA’s storage in Allatoona Lake. Made inflows consist of reclaimed water returned to a reservoir for reuse and releases of water stored in other water supply reservoirs. These projects minimize environmental impacts and maximize the use of existing infrastructure by augmenting the amount of water flowing into CCMWA’s storage space in the reservoir.

For example, each day about 17 million gallons of highly treated, reclaimed water is collected and returned to Allatoona Lake for reuse. Likewise, CCMWA has constructed the Hickory Log Creek Reservoir upstream of Allatoona Lake. This project releases water for withdrawal by CCMWA to supplement its Allatoona Lake supplies.

In November 2014, the Corps released an updated master water control manual and Environmental Impact Statement (EIS) for the ACT Basin. Unfortunately, the updated manual and EIS failed to address CCMWA’s request for more storage and many other issues related to water supply. The updated manual was formally adopted in May 2015 without correcting these deficiencies.

Failure to Act Lawsuit (resolved)

In November 2014, following release of the Corps' EIS, the State of Georgia, the Atlanta Regional Commission, and CCMWA sued the Corps to compel it to act on water supply issues at Allatoona Lake.

In September 2017, the district court ruled in favor, finding that the Corps’ failure to respond to the Georgia Parties’ water supply requests at Allatoona Lake was unlawful. The district court ordered the Corps to respond to the water supply requests by August 2021. The case (the “Failure to Act Lawsuit”) was State of Georgia v. U.S. Army Corps of Engineers, Civil Action No. 1:14-cv-3593 (N.D. Ga.).

Storage Accounting Lawsuit (resolved)

In 2017, CCMWA sued the Corps over its refusal to honor CCMWA’s rights to “made inflows” — reclaimed water returned to the lake and releases from the Hickory Log Creek Reservoir — that had been allocated to CCMWA by the State of Georgia. CCMWA and the Corps signed a settlement to resolve CCMWA’s legal claims. The settlement agreement required the Corps to reconsider its practices and study the environmental impacts of honoring CCMWA’s water rights. The case (the “Storage Accounting Lawsuit”) was CCMWA v. U.S. Army Corps of Engineers, Civil Action No. 1:17-cv-400 (N.D. Ga.).

The Corps’ Reallocation Study

The Corps prepared a “Reallocation Study” to comply with the court’s order in the Failure to Act Lawsuit and its settlement agreement in the Storage Accounting Lawsuit. This study, which extended over three years, evaluated the impacts of meeting Metro Atlanta's water supply needs from Allatoona Lake and honoring CCMWA’s rights to made inflows.

Based on a detailed Environmental Impact Statement, the Corps signed a Record of Decision on August 30, 2021, granting Metro Atlanta’s water supply requests from Allatoona Lake. The decision confirms that Metro Atlanta’s projected 2050 water supply needs from Allatoona Lake of 94 million gallons per day will be met, explaining that “exhaustive analysis” by the Corps shows meeting these needs will have “no significant adverse impacts to federal purposes” and no “appreciable effects on flows at the Alabama-Georgia state line, drought triggers, or water quality.”

The decision reallocates more storage space in the reservoir to meet the projected water needs of the City of Cartersville and Bartow County through 2050. When combined with the existing water supply storage space in the reservoir, about 5.85 percent of the usable storage and about 12 percent of the conservation storage in Allatoona Lake will be dedicated to water supply. This means that about 88 percent of the reservoir’s conservation storage will remain available to meet other objectives like recreation, hydropower, navigation, and fish and wildlife conservation.

Additionally, and perhaps more significantly, the decision recognizes CCMWA’s right to impound and withdraw made inflows to Allatoona Lake. Made inflows are a critical part of Metro Atlanta’s long-term water supply plan because they increase the amount of water flowing into a reservoir, thus letting water providers meet growing needs and improve water supply reliability by engineering projects to put more water back into existing reservoirs.

The decision recognizing CCMWA’s rights to made inflows marks a sea-change in Corps water policy. It will strongly incentivize more water reuse in Metro Atlanta, enhance the resiliency of the region’s water supply, and maximize the use of existing reservoir storage space, thus avoiding economic and environmental impacts from constructing more and unnecessary water supply infrastructure.

Alabama et al. Lawsuit (ongoing)

Separately, in May 2015, the State of Alabama and Alabama Power also sued the Corps in federal court in Washington, D.C. to challenge the Corps’ 2015 decision to revise its ACT Master Water Control Manual. These suits challenge the Corps’ compliance with NEPA, as well as the operational rules adopted by the Corps. Further, in November 2022, Alabama was granted permission to add new claims challenging the Corps’ 2021 Record of Decision granting water supply requests at Allatoona Lake and honoring CCMWA’s rights to made inflows. The consolidated case (the “Alabama Parties’ Lawsuit”) is Alabama et al. v. U.S. Army Corps of Engineers, Civil Action No. 1:15-cv-696 (D.D.C.). The cities of Montgomery and Mobile, Alabama have also intervened in this case, as have the State of Georgia, the Atlanta Regional Commission and the Cobb-County Marietta Water Authority. This case remains pending in Washington, D.C.

  •  1981
    CMWA requests that the Corps reallocate storage in Allatoona Lake to water supply. CCMWA asks the Corps to take action “as rapidly as possible.”
  • 1989
    The Corps proposes to reallocate storage in Allatoona Lake to meet CCMWA’s needs, finding that it would have no significant environmental impacts.
  • 1990
    Alabama files suit to block the Corps from finalizing its plan. The Corps fails to act on CCMWA’s request in response to Alabama’s lawsuit.
  • 2000s
    CCMWA constructs the Hickory Log Creek Reservoir to expand its supplies.
  • 2012
    CCMWA renews its request for action by the Corps on water supply issues at Allatoona Lake, including its request for additional storage in the reservoir.
  • January 2013
    Georgia submits a revised water supply request for the ACT Basin, seeking additional water supply storage in Allatoona Lake and other changes to water supply operations.
  • March 2013
    The Corps issues draft water control manuals for the ACT Basin and Allatoona Lake without addressing water supply needs in Georgia.
  • November 2014
    The Corps publicly releases the updated Master Water Control Manual and Final Environmental Impact Statement for the ACT Basin.The Atlanta Regional Commission, CCMWA, and the State of Georgia file the Failure to Act Lawsuit against the Corps. The suits stem from the Corps’ failure to act on water supply requests at Allatoona Lake that have been pending for more than 30 years. They seek an order from the court directing the Corps to address water supply issues at Allatoona Lake by a date certain.
  • May 2015
    The Corps formally adopts the updated Master Water Control Manual for the ACT Basin. Alabama and Alabama Power file the Alabama Parties’ Lawsuit against the Corps in Washington, D.C., challenging the new Master Water Control Manual for the ACT Basin.
  • September 2017
    The district court issues a decision in the Failure to Act Lawsuit finding the Corps unlawfully failed to respond to the Georgia Parties’ water supply requests at Allatoona Lake.
  • January 2018
    The district court overseeing the Failure to Act Lawsuit orders the Corps to respond to the water supply requests at Allatoona Lake.
  • May 2019
    CCMWA and the Corps sign the settlement agreement to resolve CCMWA’s claims in the Storage Accounting Lawsuit, which requires the Corps to reconsider CCWMA’s rights to made inflows.
  • August 2021
    The Acting Assistant Secretary of the Army (Civil Works) signs a Record of Decision on August 30, 2021, granting Metro Atlanta’s water supply requests from Allatoona Lake. The decision approves reallocating storage in Allatoona Lake to meet the needs of the City of Cartersville and Bartow County. It directs the Corps to honor CCMWA’s rights to made inflows.
  • February 2022
    Alabama asks the court in Washington, D.C. overseeing the Alabama Parties’ Lawsuit for permission to add new claims challenging the Corps’ August 2021 Record of Decision.
  • November 2022
    The court in Washington, D.C. grants Alabama’s request and allows its supplemental complaint to be filed.
  • November 2023
    The court in Washington, D.C. issues a decision rejecting all challenges by Alabama and Alabama Power to the 2015 Water Control Manual and Final EIS (case originally filed in May 2015). This does not address Alabama’s February 2022 request to add new claims.
  • Next Steps:
    Within 21 days of the November 2023 court ruling on Alabama’s claims, the Par􀆟es will confer and file a proposed schedule for proceeding with the remaining challenges to the 2021 reallocation and decision on made inflows (related to Alabama’s February 2022 request to add new claims, which was approved by the court in November 2022).

Last updated November 11, 2023.

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