Wallace Dam Project (FERC No
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Southern Company Generation. 241 Ralph McGill Boulevard, NE BIN 10193 Atlanta, GA 30308-3374 404 506 7219 tel November 21, 2017 Wallace Dam Project (FERC No. 2413-117) Wallace Dam Relicensing Preliminary Licensing Proposal Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Room 1-A- Dockets Room Washington, D.C. 20426 Dear Secretary Bose: On behalf of Georgia Power Company, Southern Company is filing with the Federal Energy Regulatory Commission the Wallace Dam Preliminary Licensing Proposal in compliance with the Commission’s Integrated Licensing Process regulations at 18 CFR § 5.16. If you require further information, please contact me at 404.506.7219 or [email protected]. Sincerely, Courtenay R. O’Mara, P.E. Hydro Licensing & Compliance Supervisor Attachment cc: FERC/OEP – Allan Creamer Geosyntec – Steve Layman, Ph.D. Troutman Sanders – Hallie Meushaw, Fitzgerald Veira Preliminary Licensing Proposal Wallace Dam Hydroelectric Project FERC Project Number 2413 Prepared with: Southern Company Generation Hydro Services and November 2017 TABLE OF CONTENTS EXECUTIVE SUMMARY .............................................................................................. v Project Setting ....................................................................................................... v Current Operation ................................................................................................ vi Preliminary Licensing Proposal ........................................................................... vi 1.0 INTRODUCTION ................................................................................................ 1 1.1 Purposes ....................................................................................................... 1 1.2 Review Schedule.......................................................................................... 2 1.3 Document Organization ............................................................................... 2 2.0 PROPOSED ACTION .......................................................................................... 3 2.1 Project Description ...................................................................................... 3 2.1.1 Project Facilities ............................................................................. 3 2.1.2 Project Lands and Waters ............................................................... 5 2.2 Current Operation ........................................................................................ 6 2.2.1 Normal Operation ........................................................................... 7 2.2.2 Drought Operation .......................................................................... 7 2.3 Proposed Operation...................................................................................... 8 2.4 Proposed Environmental Measures ............................................................. 8 3.0 PRE-FILING CONSULTATION SUMMARY ................................................. 11 3.1 Stakeholder Consultation ........................................................................... 11 3.2 Scoping Process ......................................................................................... 13 3.3 Study Plan Development ........................................................................... 13 3.4 Resource Study Reports ............................................................................. 13 3.5 Stakeholder Meetings ................................................................................ 15 4.0 ENVIRONMENTAL ANALYSIS ..................................................................... 16 4.1 General Description of the River Basin ..................................................... 16 4.1.1 Dams in the Basin ......................................................................... 16 4.1.2 Major Land Uses .......................................................................... 17 4.1.3 Major Water Uses ......................................................................... 17 GK6366/GA170532/Wallace Dam PLP.docx i 11.21.17 TABLE OF CONTENTS (Continued) 4.1.4 Tributary Streams ......................................................................... 18 4.1.5 Climate.......................................................................................... 18 4.2 Cumulative Effects .................................................................................... 18 4.2.1 Geographic Scope ......................................................................... 18 4.2.2 Temporal Scope ............................................................................ 19 4.3 Proposed Action ......................................................................................... 20 4.3.1 Geology and Soils ......................................................................... 20 4.3.2 Water Resources ........................................................................... 24 4.3.3 Fish and Aquatic Resources ......................................................... 33 4.3.4 Terrestrial Resources .................................................................... 49 4.3.5 Threatened and Endangered Species ............................................ 60 4.3.6 Recreation and Land Use .............................................................. 64 4.3.7 Aesthetic Resources ...................................................................... 75 4.3.8 Cultural Resources ........................................................................ 76 5.0 REFERENCES ................................................................................................... 79 TABLES Table 1 Nameplate Generating Capacity and Hydraulic Capacity of the Wallace Dam Turbine Units Table 2 Design Characteristics of the Wallace Dam Turbine Units Table 3 Monthly Minimum, Mean, and Maximum Flow by Month at Wallace Dam, 1997- 2016 Table 4 Fishes Known to Occur in the Vicinity of the Wallace Dam Project Based on Historical and Recent Records Table 5 Monthly Total Generation (Megawatt-Hours) for the Wallace Dam Project for Years 1997-2016 Table 6 Summary of Wallace Dam Hourly Generation by Month for Water Years 2016 and 2017 Table 7 Summary of Wallace Dam Hourly Pumpback by Month for Water Years 2017 and 2017 GK6366/GA170532/Wallace Dam PLP.docx ii 11.21.17 TABLE OF CONTENTS (Continued) Table 8 Summary of Wallace Dam Generation and Pumpback Hours by Unit and Month for Water Year 2016 Table 9 Summary of Wallace Dam Generation and Pumpback Hours by Unit and Month for Water Year 2017 Table 10 Jocassee Site Monthly Operations, Acoustic-Sampled Entrainment Estimates, and Entrainment Rates Table 11 Comparison of Jocassee and Wallace Dam Site and Operational Characteristics for Entrainment Data Extrapolation Table 12 Wallace Dam Project Monthly Operations for Water Years 2016 and 2017 Table 13 Extrapolated Wallace Dam Entrainment Estimates Using Jocassee Monthly Entrainment Rates and Wallace Dam Average Monthly Operations Table 14 Federally and State Protected Plant and Wildlife Species with Known Records of Occurrence in the Wallace Dam Project Vicinity Table 15 Recreation Facilities Providing Access to the Wallace Dam Project Table 16 Federal or State Comprehensive Waterway Plans Potentially Applicable to Project Recreation or Land Use FIGURES Figure 1 Project Location in the Oconee River Basin Figure 2 Project Location on the Oconee River Figure 3 Project Boundary and Surrounding Area Figure 4 Project Lands Reserved for Future Recreational Use Figure 5 Project Facilities Figure 6 Waterfowl Impoundments in Oconee WMA Figure 7 Wallace Dam Forebay Vertical Profile Figure 8 Conceptual Design of Forebay Oxygen Line Diffuser System for Wallace Dam Figure 9 Proposed Location of Onshore Liquid Oxygen Supply Facility Figure 10 Conceptual Layout of Recreation Improvements at Lawrence Shoals Park Figure 11 Conceptual Layout of Recreation Improvements at Old Salem Park Figure 12 Conceptual Layout of Recreation Improvements at Parks Ferry Park Figure 13 Conceptual Layout of Recreation Improvements at Sugar Creek Boat Ramp Figure 14 Conceptual Layout of Recreation Improvements at Armour Bridge Figure 15 Conceptual Layout of Recreation Improvements at Long Shoals Boat Ramp Figure 16 Proposed Bank Fishing Access at Area C-5 GK6366/GA170532/Wallace Dam PLP.docx iii 11.21.17 TABLE OF CONTENTS (Continued) Figure 17 Proposed Bank Fishing Access at Jerry’s Highway 44 Figure 18 Proposed Fishing Pier at Highway 16 Boat Ramp GK6366/GA170532/Wallace Dam PLP.docx iv 11.21.17 EXECUTIVE SUMMARY This document is Georgia Power Company’s (Georgia Power’s) Preliminary Licensing Proposal (PLP) for Federal Energy Regulatory Commission (FERC) relicensing of the existing Wallace Dam Hydroelectric Project (Wallace Dam Project, the Project) (FERC No. 2413). Georgia Power is using the Integrated Licensing Process and is filing a PLP instead of a draft license application. Relicensing participants may file comments on the PLP with FERC within 90 days of the November 21, 2017 filing date; comments are due February 19, 2018. The Wallace Dam Project is a pumped storage project consisting of Wallace Dam, a powerhouse, and a reservoir (Lake Oconee) on the Oconee River in Hancock, Putnam, Greene, and Morgan Counties, Georgia. Georgia Power operates the Project in a pumped storage mode for peaking power generation. The Wallace Dam Project has a nameplate capacity of 321.3 megawatts. The Project uses Lake Oconee as the upper reservoir