Notice of Availability of Record of Decision for the Final Supplemental Environmental Impact Statement for the Allatoona Lake Water Supply Storage Reallocation Study and Updates to Weiss and Logan Martin Reservoir Project Water Control Manuals in the Alabama-Coosa-Tallapoosa River Basin, Alabama and Georgia

Published date07 September 2021
Citation86 FR 50093
Record Number2021-19266
SectionNotices
CourtArmy, Corps Of Engineers Department
50093
Federal Register / Vol. 86, No. 170 / Tuesday, September 7, 2021 / Notices
determined that the meeting shall be
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Dated: August 30, 2021.
Aaron T. Siegel,
Alternate OSD Federal Register Liaison
Officer, Department of Defense.
[FR Doc. 2021–19168 Filed 9–3–21; 8:45 am]
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DEPARTMENT OF DEFENSE
Department of the Army, Corps of
Engineers
Notice of Availability of Record of
Decision for the Final Supplemental
Environmental Impact Statement for
the Allatoona Lake Water Supply
Storage Reallocation Study and
Updates to Weiss and Logan Martin
Reservoir Project Water Control
Manuals in the Alabama-Coosa-
Tallapoosa River Basin, Alabama and
Georgia
AGENCY
: Department of the Army, U.S.
Army Corps of Engineers, DoD.
ACTION
: Notice of availability of the
record of decision.
SUMMARY
: The U.S. Army Corps of
Engineers (USACE) announces the
availability of the Record of Decision
(ROD) for the Final Integrated
Supplemental Environmental Impact
Statement for the Allatoona Lake Water
Supply Storage Reallocation Study and
Updates to Weiss and Logan Martin
Reservoir Project Water Control
Manuals in the Alabama-Coosa-
Tallapoosa River Basin, Alabama and
Georgia (FR/SEIS), published in the
Federal Register on Friday, November
20, 2020. The Assistant Secretary of the
Army for Civil Works signed the ROD
on August 27, 2021. Copies of the ROD
along with the FR/SEIS and other
supporting documents are available for
viewing at https://
www.sam.usace.army.mil/Missions/
Planning-Environmental/Allatoona-
Lake-Water-Supply-Storage-
Reallocation-Study-and-Updates-to-
Weiss-and-Logan-Martin-Reservoirs-
Project-Water-Control-Manuals/
Document-Library/.
ADDRESSES
: U.S. Army Corps of
Engineers, Mobile District, Post Office
Box 2288, Mobile, AL 36628–0001.
FOR FURTHER INFORMATION CONTACT
: Mr.
Mike Malsom, Inland Environment
Team, Planning and Environmental
Division, U.S. Army Corps of Engineer
District-Mobile, Post Office Box 2288,
Mobile, AL 36628–0001; Telephone
(251) 690–2023; delivered by electronic
facsimile at (251) 694–3815; or by
electronic mail: ACT-ACR@
usace.army.mil.
SUPPLEMENTARY INFORMATION
: The FR/
SEIS includes a water supply storage
reallocation study evaluating a March
30, 2018, request by the State of Georgia
and the Cobb County-Marietta Water
Authority for increased water supply
use at Allatoona Lake; a State of Georgia
recommended storage accounting
method; updated operating criteria and
guidelines for managing the water
storage and release actions of Federal
water managers; Alabama Power
Company’s (APC) proposed raising of
winter pool levels for recreation and
lowering the upper limit of the induced
surcharge operational pools at Weiss
Dam and Lake (Reservoir); and Logan
Martin Dam and Lake (Reservoir).
USACE will also update the Water
Control Manuals (WCMs) for Allatoona
Lake and APC’s Weiss and Logan Martin
Reservoirs, and the Alabama-Coosa-
Tallapoosa (ACT) River Basin Master
Manual.
A final array of alternatives was
considered in detail during the plan
formulation process. USACE identified
Alternative 11 as the Recommended
Plan in the FR/SEIS; however,
Alternative 12 was chosen as the
Selected Plan and will be implemented.
Alternative 11 would have reallocated
33,872 acre-feet (ac-ft) of storage in
Allatoona Lake (11,670 ac-ft from flood
storage and 22,202 ac-ft from
conservation storage) and would have
utilized the USACE storage accounting
method. The USACE storage accounting
method charges all water supply
withdrawals to the respective water
supply account and credits all inflows,
including return flows directly to
Allatoona Lake or additive flows
released from Hickory Log Creek
Reservoir, to all accounts according to
their proportion of project yield.
Alternative 11 would have also
modified flood control storage to the
APC projects Weiss Lake and Logan
Martin Lake. The Selected Plan
(Alternative 12) would reallocate 14,159
ac-ft from conservation storage at
Allatoona Lake for water supply storage
and utilizes the Georgia preferred
storage accounting method in which 100
percent of return flows from Cobb
County’s water treatment facilities at
Allatoona Lake and releases from the
upstream Hickory Log Creek Reservoir
would be credited to water supply
storage accounts. The Selected Plan also
includes modified flood control storage
to the APC projects’ Weiss and Logan
Martin Reservoirs (unchanged from
Alternative 11).
A summary of environmental
consequences for the final array of
alternatives is provided in the FR/SEIS.
Three of the alternatives (in addition to
the no action alternative) were selected
for detailed analysis of impacts in
accordance with the National
Environmental Policy Act; they are
Alternative 11 (the Recommended Plan),
Alternative 10, and Alternative 3. The
other alternatives are variations of these
three alternatives, and they would
involve similar impacts as one of these
three alternatives. The Selected Plan
(Alternative 12) is similar to Alternative
10, except that Alternative 12 includes
the use of the Georgia preferred storage
accounting method. The anticipated
environmental consequences of the
Selected Plan (Alternative 12) are not
significantly different from those
anticipated for Alternatives 10 or 11.
The ROD documents why the USACE
has chosen to implement Alternative 12
instead of Alternative 11, as described
in the FR/SEIS.
Dated: September 1, 2021.
Jason E. Kelly,
Brigadier General, U.S. Army Commanding.
[FR Doc. 2021–19266 Filed 9–3–21; 8:45 am]
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