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HomeMy WebLinkAbout04.23.26 Board Correspondence - FW_ Project Operations Compliance Report submitted in FERC P-619-179 by Pacific Gas and Electric CompanyFrom:Clerk of the Board To:Clerk of the Board; Connelly, Bill; Cook, Holly; Cook, Robin; Durfee, Peter; Jessee, Meegan; Kimmelshue, Tod; Kitts, Melissa; Krater, Sharleen; Lee, Lewis; Little, Melissa; Pickett, Andy; Ritter, Tami; Stephens, Brad J.; Sweeney, Kathleen; Teeter, Doug; Zepeda, Elizabeth Cc:Loeser, Kamie; Cannon, Jamie Subject:Board Correspondence - FW: Project Operations Compliance Report submitted in FERC P-619-179 by Pacific Gas and Electric Company Date:Thursday, April 23, 2026 1:09:20 PM Please see Board Correspondence - Lewis Lee Administrative Technician - Confidential Butte County Administration 25 County Center Drive, Suite 200 • Oroville, CA 95965 T: 530.552.3326 www.buttecounty.ca.gov | lelee@buttecounty.ca.gov -----Original Message----- From: 'FERC eSubscription' <eSubscription@ferc.gov> Sent: Thursday, April 23, 2026 10:36 AM Subject: Project Operations Compliance Report submitted in FERC P-619-179 by Pacific Gas and Electric Company .ATTENTION: This message originated from outside Butte County. Please exercise judgment before opening attachments, clicking on links, or replying.. On 4/23/2026, the following Filing was submitted to the Federal Energy Regulatory Commission (FERC), Washington D.C.: Filer: Pacific Gas and Electric Company Docket(s): P-619-179 Lead Applicant: Pacific Gas and Electric Company Filing Type: Project Operations Compliance Report Drawing/Maps Description: Pacific Gas and Electric Company submits correction of authorized installed capacity and updated Exhibit A re the Bucks Creek Hydroelectric Project under P-619. To view the document for this Filing, click here https://urldefense.com/v3/__https://elibrary.ferc.gov/eLibrary/filelist? accession_num=20260423-5100__;!!KNMwiTCp4spf!GEnAj9Qehna9pferv2- NwS6AfC34jqcRhpMGKc_00sUuKkgF373R_lnmtUQ0XqAfojDv9tlPpgCUPEs-8tKsyKL9B2W5U7mGx7ls$ To modify your subscriptions, click here: NwS6AfC34jqcRhpMGKc_00sUuKkgF373R_lnmtUQ0XqAfojDv9tlPpgCUPEs-8tKsyKL9B2W5U0MdiEpu$ ------------------------------------------------------------------------ Please do not respond to this email. Online help is available here: https://urldefense.com/v3/__http://www.ferc.gov/efiling-help.asp__;!!KNMwiTCp4spf!GEnAj9Qehna9pferv2- NwS6AfC34jqcRhpMGKc_00sUuKkgF373R_lnmtUQ0XqAfojDv9tlPpgCUPEs-8tKsyKL9B2W5U1oWOdw5$ or for phone support, call 866-208-3676. Power Generation 300 Lakeside Drive Oakland, CA 94612 Mailing Address: P.O. Box 28209 Oakland, CA 94604 April 23, 2026 Via Electronic Submittal (E-File) Debbie-Anne A. Reese, Secretary ATTN: OEP/DHAC Federal Energy Regulatory Commission 888 First Street, NE Washington, DC 20426 RE: Bucks Creek Hydroelectric Project, FERC No. 619-179 Correction of Authorized Installed Capacity, Amendment to Article 201 and Revised Exhibit A Dear Secretary Reese: This letter presents a correction of authorized installed capacity and updated Exhibit A for Pacific Gas and Electric Company’s (PG&E) Bucks Creek Hydroelectric Project, Federal Energy Regulatory Commission (FERC) No. 619. By order issued March 11, 2026, FERC approved revised Exhibits F and G for the Bucks Creek Hydroelectric Project and revised Article 201 of the license to reflect the authorized installed capacity used to calculate annual charges (P-619-179). In that order, the Commission specified an authorized installed capacity of 84.8 megawatts (MW) for purposes of Article 201. This filing provides correction of authorized installed capacity and an updated Exhibit A. Authorized Installed Capacity PG&E previously notified the Commission of planned generator stator rewind and generator core restack maintenance for Bucks Creek Powerhouse Units 1 and 2. That work was completed in January 2026, which was followed by unit testing and updates to the unit nameplates. Final nameplate drawings are included in (Enclosure 1). It was determined that the installed capacity calculation should be based on the turbine rating as the limiting factor. This results in a change in the limiting factor (i.e., from generator to turbine) which in turn results in a revised installed capacity calculation. Calculation of Authorized Installed Capacity Bucks Creek powerhouse contains two, double-overhung impulse turbines that each have a rated output of 40,000 horsepower (hp). In addition, the powerhouse includes two revolving field generators that have a total maximum capacity of 65,340 kilowatt (kW) and are rated at 36,300 kilovolt-amperes (kVA) at 0.9 power factor (PF). Consistent with the Commission’s regulations, the authorized installed capacity for this development is 60,000 kW limited by the turbines. Debbie-Anne Reese, Secretary April 23, 2026 Page 2 The Grizzly powerhouse contains one vertical Francis turbine with a rated output of 26,400 hp and one synchronous generator with a maximum capacity of 19,800 kW which is rated at 22,000 kVA at 0.9 PF. Consistent with the Commission’s regulations, the authorized installed capacity for this development is 19,800 kW. The current generator and turbine capacities for 2026 are summarized in the following table. As per 18 C.F.R. § 11.1(i), the limiting factor is the turbines, the installed capacity is the sum of the highlighted cells. Per 18 C.F.R. § 11.1(i), the total authorized installed capacity for the entire project is 79.80 MW. Revision to Article 201 – Administrative Annual Charges Article 201(a) states: “Reimbursing the United States for the cost of administering Part I of the Federal Power Act. The authorized installed capacity for that purpose is 84.8 MW.” Article 201(a) should be revised to state: “Reimbursing the United States for the cost of administering Part I of the Federal Power Act. The authorized installed capacity for that purpose is 79.8 MW.” Revised Exhibit A Pursuant to Article 203 of the license, licensees must file for Commission approval a revised Exhibit A that includes updates to the Grizzly powerhouse and transmission line . Based on completion of generator stator rewind and generator core restack maintenance and testing for Bucks Creek Powerhouse Units 1 and 2, and incorporation of final nameplate information, PG&E is submitting a revised Exhibit A reflecting the updated installed capacity calculation for the Commission’s review and approval (Enclosure 2). 2026 Capacities Generator MW Turbine MW Bucks U1 32.67 30.00 Bucks U2 32.67 30.00 Grizzly 19.80 19.80 Authorized Installed Capacity 79.80 Debbie-Anne Reese, Secretary April 23, 2026 Page 3 If you have questions or comments regarding this matter, please contact Trevor Moore, senior license coordinator for PG&E, at 530-205-7645. Sincerely, Matt Joseph Supervisor, Hydro Licensing Enclosures: 1. Nameplate Drawings Bucks U1 and U2 2. Revised Exhibit A, 2026 cc: via email w/enclosures Valentina Guzman, City of Santa Clara – vguzman@santaclaraca.gov Diane Asuncion, City of Santa Clara - dasuncion@santaclaraca.gov ENCLOSURE 1 ENCLOSURE 2 April 2026 Page A-1 Exhibit A Bucks Creek Hydroelectric Project, FERC Project No. 619 ©2026, Pacific Gas and Electric Company and the City of Santa Clara Public Public Exhibit A Project Description Section 5.18(a)(5)(iii) of Title 18 of the Code of Federal Regulations (CFR) refers to Section 4.51 (License for Major Project–Existing Dam) for a description of information that an applicant must include 18 CFR § 4.51(b), as a reference states: (b) Exhibit A is a description of the project. This exhibit need not include information on project works maintained and operated by the U.S. Army Corps of Engineers, the Bureau of Reclamation, or any ot her department or agency of the United States, except for any project works that are proposed to be altered or modifie d. If the project includes more than one dam with associated facilities, each dam and the associated component part s must be described together as a discrete development. The description for each development must contain: (1) The physical composition, dimensions, and general configuration of any dams, spillways, penstocks, powerhouses, tailraces, or other structures, whether existing or proposed , to be included as part of the project; (2) The normal maximum surface area and normal maximum surface elevation (mean sea level), gross storage capacity, and usable storage capacity of any impoundments to be included as part of the project; (3) The number, type, and rated capacity of any turbines or generators, whet her existing or proposed, to be included as part of the project; (4) The number, length, voltage, and interconnections of any primary transmission lines, whether existing or proposed, to be included as part of the project (see 16 U.S.C. 796(1 1)); (5) The specifications of any additional mechanical, electrical, and transmission equipment appurtenant to the project; and (6) All lands of the United States that are enclosed within the project boundary described under paragraph (h) of this section (Exhibit G), identified and tabulated by legal subdivisions of a public land survey of the affected area or, in the absence of a public land survey, by the best a vailable legal description. The tabulation must show the total acreage of the lands of the United States within the project boundary. The Bucks Creek Hydroelectric Project (FERC 619) is located entirely within Plumas County, California in the Sierra Nevada Mountains, approximately 17 mi southwest of the community of Quincy. The Project is in the Sacramento River Hydrologic Region of northern California, and is in the North Fork Feather River (NFFR) drainage basin. The Project includes Bucks Lake, Lower Bucks Lake, Grizzly Forebay, Three Lakes, and their respective dams; Milk Ranch Conduit and its respective diversions; and Grizzly and Bucks Creek powerhouses. These features are on Bucks, Grizzly and Milk Ranch creeks, which are tributaries to the NFFR. Water inflow from these three watersheds is impounded and up to 400 cubic feet per second (cfs) is diverted through Grizzly and subsequently Bucks Creek powerhouses for generation purposes. The installed capacity of the Project is 79.80 megawatts (MW). The Project is a tributary to the NFFR, with Bucks Creek Powerhouse discharging into the Rock Creek Reach upstream of Cresta Reservoir, a feature of PG&E’s Rock Creek-Cresta Hydroelectric Project (Federal Energy Regulatory Commission [FERC] Project No. 1962). All elevations provided are based on Feather River Power Company vertical datum. Elevations on Feather River Power Company datum are 3.5 ft lower than NGVD 1929 (USGS) vertical datum. Page 2 Exhibit A Public Public A.1.1 Bucks Creek Development A.1.1.1 Three Lakes Dam and Reservoir and Milk Ranch Conduit The Three Lakes Dam consists of a rock-fill dam with a structural height of 30 ft and a length of 584 ft. Three Lakes Dam impounds the flow of Milk Ranch Creek. These water bodies are hydraulically linked and extend approximately 0.75 mi from the dam. Total storage in the 40-acre reservoir is approximately 605 af at the normal maximum water surface elevation of approximately 6,078 ft. The usable storage capacity of Three Lakes is 605 af. The diversion/outlet tunnel consists of a 30-inch-diameter pipe from the dam tapering to a 20-inch gate valve. Water from Three Lakes is discharged into and flows down Milk Ranch Creek before flow is diverted into Milk Ranch Conduit. The 8.1 mi long conduit is buried under Three Lakes Road (USFS Road 24N24) and extends from Three Lakes at the north to Lower Bucks Lake on the south. The function of this conduit is to transfer water stored in Three Lakes to Lower Bucks Lake. The conduit is a steel pipeline varying from 23 inches in diameter at the upstream end to 36 inches in diameter at the downstream discharge point at Lower Bucks Lake with a maximum capacity of about 70 cfs. Additionally, several small diversions are located along the conduit and route water, when seasonally present, from small intermittent tributary drainages into the conduit. The diversion structures typically consist of low (less than 10 ft high) concrete check dams with a steel slide gate in the middle of the dam. On one side of the dam, there is a grizzly (trash rack) and intake pipe equipped with a shutoff gate. The diversion pipe to the Milk Ranch Conduit is located within the grizzly structure. The steel pipes directing water from the diversion to the Milk Ranch Conduit range in length from 70 ft to 200 ft. Under the previous FERC license, the diversions were numbered consecutively from downstream near Lower Bucks Lake, to upstream near Milk Ranch Creek. The diversions are located in the Milk Ranch Creek watershed and in the Bucks Creek watershed. Just upstream of Lower Bucks Lake, an enclosed stilling well and flow station (PG&E Gage NF11) are used to record the conduit discharge. For the diversions the Licensees currently divert water, the approximate drainage area, diameter of diversion pipe and height of diversion dam is provided in Table A.1.1-1. Table A.1.1-1 Summary of Active Milk Ranch Conduit Diversions Drainage Name and Number Status Approximate Drainage Area (square miles) Diameter of Diversion Pipe (inches) Height of Diversion Dam (ft) Milk Ranch Creek 1 Active Diversion 0.3 23 6.3 2 (North Fork Grouse Hollow Creek) Active Diversion 0.3 18 1.5 3 (South Fork Grouse Hollow Creek) Active Diversion (Currently out of service) 1.0 18-23 6.2 Page 3 Exhibit A Public Public 4 (Unnamed Drainage) Active Diversion 0.3 12 18 1.7 5 (Unnamed Drainage) Active Diversion 0.2 12 2.7 6 (Bear Trap Creek) Active Diversion 0.2 18 1.2 7 (Slide Ravine) Active Diversion 0.2 12 1.5 8 (Bear Ravine) Not Operated 1.1 21 4.6 9 (Unnamed Drainage) Active Diversion 0.04 12 1 A.1.1.2 Bucks Lake Dam and Reservoir The Bucks Lake Dam consists of a rock-fill with concrete face dam. It has a structural height of 123 ft and a length of 1,320 ft. Bucks Creek Dam impounds Bucks Lake, extends reservoir length of 5 mi and a shoreline length of 14 mi. Total storage in the 1,827-acre reservoir is approximately 105,605 acre-ft (af) at the normal maximum water surface elevation of approximately 5,157 ft. The usable storage capacity of Bucks Lake is 105,300 af. From Bucks Lake, the Project’s water flow is released immediately downstream into Lower Bucks Lake. The diversion/outlet tunnel consists of two 30-inch riveted steel pipes. Upstream control is provided by two 36-inch ball valves that are normally fully open, and downstream control is provided by two 30-inch-diameter, free discharge, needle valves that are operated by electronic motors. A.1.1.3 Lower Bucks Lake Dam and Reservoir The Lower Bucks Lake Dam consists of a concrete arch dam with a structural height of 99 ft and a length of 500 ft. Lower Bucks Lake Dam impounds Lower Bucks Lake, creating a reservoir length of approximately 1.1 mi and a shoreline of approximately 2.7 mi. Total storage in the 136-acre reservoir is approximately 5,843 af at the normal maximum water surface elevation of approximately 5,022 ft. The usable storage capacity of Lower Bucks Lake is 2,448 af. Water is conveyed from Lower Bucks Lake to the Grizzly Powerhouse by the Grizzly Powerhouse Tunnel. The diversion/outlet tunnel consists of a low-level 24-inch outlet pipe. Upstream control is provided by a 30-inch manually-operated slide gate, and downstream control is provided by a 14-inch-diameter minimum instream flow release (Howell-Bunger) valve. A.1.1.4 Lower Bucks Lake Tunnel The Lower Bucks Lake Tunnel, which previously emptied water from Lower Bucks Lake into Grizzly Creek, approximately 3.5 mi upstream from Grizzly Forebay, was operationally abandoned following the completion of the Grizzly Powerhouse Tunnel, however it remains a Project facility.1 1 FERC’s Orders of April 29, 1988, and July 10, 1990, at 43 FERC 62,136 and 52 FERC 61,019 Page 4 Exhibit A Public Public A.1.1.5 Grizzly Forebay Dam and Reservoir The Grizzly Forebay Dam consists of a concrete arch dam with a structural height of 98 ft and a length of 520 ft. Grizzly Forebay Dam impounds the Grizzly Forebay, forming the Grizzly Forebay Reservoir that extends approximately 0.8 mi with a shoreline of approximately 1.75 mi. The usable storage capacity of Grizzly Forebay is 420 af. Total storage in the 38-acre reservoir is approximately 1,112 af at the normal maximum water surface elevation of approximately 4,316 ft. The diversion/outlet tunnel consists of a low-level 24-inch pipe controlled by a 30-inch manually- operated slide gate on the upstream face of the dam. A.1.1.6 Grizzly Forebay Tunnel From Grizzly Forebay, the Project’s water flow is conveyed through the horseshoe-shaped Grizzly Forebay Tunnel. The tunnel is 9,575-ft-long with two 4,786-ft-long penstocks leading to Bucks Creek Powerhouse. The maximum flow capacity is 400 cfs. A.1.1.7 Bucks Creek Powerhouse The Project’s water flow is conveyed through the Grizzly Forebay Tunnel to Bucks Creek Powerhouse. Bucks Creek Powerhouse is located on the east bank of NFFR approximately 2 mi downstream from Grizzly Forebay. The Bucks Creek Powerhouse was commissioned on March 4, 1928, and is a 47-ft-long by 132-ft-wide, steel frame and concrete building constructed from reinforced concrete. The powerhouse contains two, double-overhung impulse turbines that each have a rated output of 40,000 horsepower (hp). In addition, the powerhouse includes two revolving field generators that have a total maximum capacity of 65,340 kilowatt (kW) and are rated at 36,300 kilovolt-amperes (kVA) at 0.9 power factor (PF). Consistent with the Commission’s regulations, the authorized installed capacity for this development is 60,000 kW limited by the turbines. The normal maximum gross head of Bucks Creek Powerhouse is 2,558 ft. The powerhouse produces an average annual generation of 223.6 gigawatt-hours (GWh), for an average capacity factor of 41.2 percent. There are no associated transmission lines at the Bucks Creek Powerhouse. The powerhouse connects directly to the non-project substation adjacent to the Project powerhouse and switchyard that is part of the interconnected transmission system. Bucks Creek Powerhouse discharges the Project’s water flow in the NFFR, 1 mi upstream of Rock Creek Powerhouse, part of PG&E’s Rock Creek-Cresta Hydroelectric Project (FERC Project No. 1962). A.1.2 Grizzly Development A.1.2.1 Grizzly Powerhouse Tunnel The 12,320-ft-long Grizzly Powerhouse Tunnel (including a 4,900-ft-long buried penstock) conveys the water flow from Lower Bucks Lake to Grizzly Powerhouse. The maximum flow capacity is 400 cfs. A.1.2.2 Grizzly Powerhouse The Grizzly Powerhouse is a 65-ft-long by 55-ft-wide, steel frame and concrete building constructed from reinforced concrete. The powerhouse contains one vertical Francis turbine with a rated output of 26,400 hp and one synchronous generator with a maximum capacity of 20,000 kW which is rated at 22,000 kVA at 0.9 PF. Consistent with the Commission’s regulations, the Page 5 Exhibit A Public Public authorized installed capacity for this development is 19,800 kW. The normal maximum gross head of Grizzly Powerhouse is 719 ft. The powerhouse produces an average annual generation production of 47.4 GWh, for an average capacity factor of 28.2 percent. Grizzly Powerhouse discharges the Project’s water flow directly into the Grizzly Forebay. From the Project switchyard adjacent to the powerhouse, a 4.0-mi-long, 115-kV transmission line transmits power from Grizzly Powerhouse to the 230 kV Rock Creek-Cresta line (non-Project) near Bucks Creek Powerhouse. Table A.1.2-1 provides a summary of the compositions, dimensions, and configuration of the Project features. Table A.1.2-1 Project Summary Data GENERAL INFORMATION FERC Project Number 619 Current License Term June 16, 2022 – June 16, 2072 Commenced Commercial Operation Bucks Development 1928; Grizzly Development 1993 County Plumas County, California Hydrologic Drainage Basin North Feather River (18020121) Watersheds Bucks Creek, Grizzly Creek, and Milk Ranch Creek BUCKS CREEK DEVELOPMENT Three Lakes Dam and Reservoir Dam Location Milk Ranch Creek, approximately 7 mi northeast from Bucks Creek Powerhouse Drainage Area (mi2) 1.3 Dam Type Rock fill Dam Height and Length 30 ft high and 584 ft long Spillway Elevation 6,074.3 ft Diversion/Outlet Tunnel 30-inch-diameter pipe from the dam tapering to a 20-inch gate valve Normal Maximum Water Surface Elevation 6,077.8 ft Normal Minimum Water Surface Elevation 6,050 ft Reservoir Length Approx. 0.75 mi (from GIS) Shoreline Length Approx. 2 mi (from GIS) Gross Storage 605 af Usable Storage 605 af Surface Area at Maximum Water Surface 40 acres Bucks Lake Dam and Reservoir Dam Location Bucks Creek, tributary of the NFFR, approximately 17 mi southwest Page 6 Exhibit A Public Public of Quincy, California Drainage Area (mi2) 28.6 Dam Type Rock-fill with concrete face Dam Height and Length 123 ft high and 1,320 ft long Spillway Elevation 5,155 ft Diversion/Outlet Tunnel • Outlet Type/Capacity: Two 30-inch riveted steel pipes • Upstream control: Two 36-inch-high ball valves; normally fully open • Downstream control: Two 30-inch-diameter, free discharge, needle valves operated by electric motors • Rated capacity: 146 cfs/pipe at El. 5,168 ft; normal maximum total release 250 cfs (may be limited by ball valves) Normal Maximum Water Surface Elevation 5,157 ft Normal Minimum Water Surface Elevation 5,100 ft (Normal Year), 5,080 ft (Dry Year) Reservoir Length 5 mi Shoreline Length 14 mi Gross Storage 105,605 af Usable Storage 105,300 af Surface Area at Maximum Water Surface 1,827 acres Lower Bucks Lake Dam and Reservoir Dam Location Bucks Creek, tributary of the NFFR, approximately 17 mi southwest of Quincy, CA Drainage Area (mi2) 31.2 Dam Type Concrete Arch Dam Height and Length 99 ft high and 500 ft long Spillway Elevation 5,022 ft Diversion/Outlet Tunnel • Low-level Outlet: 24-inch pipe • Upstream control by a 30-inch manually operated slide gate at about invert El. 4,952 ft. • Downstream control by a 14-inch-diameter minimum instream flow release (Howell-Bunger) valve. Howell-Bunger Valve 14-inch-diameter installed on low level outlet pipe in 2007 Normal Maximum Water Surface Elevation 5,022 ft Normal Minimum Water Surface Elevation 5,003.5 ft Reservoir Length Approx. 1.1 mi (from GIS) Shoreline Length Approx. 2.7 mi (from GIS) Gross Storage 5,843 af Usable Storage 2,448 af Surface Area at Maximum Water Surface 136 acres Page 7 Exhibit A Public Public Grizzly Forebay Dam and Reservoir Dam Location Grizzly Creek, approximately 2 mi upstream of Bucks Creek Powerhouse Drainage Area (mi2) 14.6 Dam Type Concrete Arch Dam Height and Length 98 ft high and 520 ft long Spillway Elevation 4,316 ft Diversion/Outlet Tunnel Low-level: 24-inch pipe controlled by a 30-inch manually operated slide gate on the upstream face of the dam at about invert El. 4,250 ft. Howell-Bunger Valve 10-inch-diameter installed on low level outlet pipe in 2008 Normal Maximum Water Surface Elevation 4,316 ft Normal Minimum Water Surface Elevation 4,304.5 ft Reservoir Length Approx. 0.8 mi (from GIS) Shoreline Length Approx. 1.75 mi (from GIS) Gross Storage 1,112 af Usable Storage 420 af Surface Area at Maximum Water Surface 38 acres Grizzly Forebay Tunnel Location Grizzly Forebay to Bucks Creek Powerhouse Tunnel Type Horseshoe Length 9,575 ft, and two 4,786-ft penstocks leading to Bucks Creek Powerhouse Diameter 8 to 12 ft; 3 to 4.5 ft (Penstocks) Maximum Flow Capacity 400 cfs Bucks Creek Powerhouse Location NFFR, east bank, approximately 0.2 mi downstream of Bucks Creek confluence with NFFR. Date of Commission March 4, 1928 Structure Steel Frame and Concrete Building Construction Material Reinforced Concrete Approximate Size 47 by 132 ft Turbine • Number of Units Two • Type Double-overhung Impulse • Manufacturer Pelton Co./Vevey Engineering Works Ltd. • Rated Output 40,000 hp each • Maximum Hydraulic Capacity 384 cfs Page 8 Exhibit A Public Public • Speed 450 RPM Generator • Number and Type Two revolving field • Manufacturer General Electric • Rated Capacity 36,300 kVA at 0.9 PF • Maximum Capacity 65,340 kW total • Authorized Installed Capacity 60,000 kW • Voltage 11 kV • Average Annual Energy 223.6 GWh per year • Closest Downstream Facility Rock Creek Powerhouse, 1 mi downstream • Transmission Line No transmission line exists. The powerhouse connects directly to the non-project substation adjacent to the powerhouse part of the inter-connected transmission system. GRIZZLY DEVELOPMENT Grizzly Powerhouse Tunnel Location Lower Bucks Lake to Grizzly Powerhouse Tunnel Type Tunnel Boring Machine and conventional excavation Length 12,320 ft, and 4,900-ft (buried) penstock leading to Grizzly Powerhouse Diameter 11 to 14 ft, 4.5 to 8 ft (Penstock) Maximum Flow Capacity 400 cfs Grizzly Powerhouse Location Grizzly Creek, 2.5 mi above Bucks Creek Powerhouse Date of Commission November 18, 1993 Structure Steel Frame and Concrete Building Construction Material Reinforced Concrete Approximate Size 65 by 55 ft Turbine • Number of Units One • Type Vertical Francis • Manufacturer American Hydro • Rated Output 26,400 hp • Maximum Hydraulic Capacity 395 cfs • Speed 450 RPM Generator • Type Synchronous • Manufacturer Asea, Brown Boveri • Rated Capacity Unit No. 1 – 22,000 kVA at 0.9 PF • Maximum Capacity 19,800 kW • Authorized Installed Capacity 19,800 kW • Voltage 6.9 kV Page 9 Exhibit A Public Public • Average Annual Energy (since Date of Commission) 47.4 GWh per year • Closest Downstream Facility Bucks Creek Powerhouse, 2.5 mi downstream • Transmission Line 4.0 mile long 115 kV transmission line extending from Grizzly Powerhouse to the 230 kV Rock Creek-Cresta line (non-Project) near Bucks Creek Powerhouse. USGS 2005. North Fork Feather River (18020121). All elevations in this table are based on Feather River Power Company vertical datum. Elevations on Feather River Power Company datum are 3.5 ft lower than NGVD 1929 (USGS) vertical datum. af = acre-feet cfs = cubic feet per second City = City of Santa Clara El. = Elevation GIS = Geographic Information System GWh = gigawatt-hours hp = horsepower kV = kilovolt kVA = kilovolt-amperes mi2 = square miles MW = megawatt NFFR = North Fork Feather River PF = power factor PG&E = Pacific Gas and Electric Company RPM = revolutions per minute A.2 Federal Lands within Project Boundaries The Project lies entirely within the boundary of the Plumas National Forest (PNF). The PNF managed federal lands are located extensively within the Project boundary. Most of the PG&E- owned Project lands are located at Bucks Lake. A small amount of private lands not owned by PG&E are located at Bucks Lake and along Bucks Penstock Road. and identified in Table A.2.1. Table A.2.1 Landownership within the Project Boundary as shown in Exhibit G: Table A.2.1 Landownership within the Project Boundary (rounded) Federal Land 1,212.2 acres PG&E Land 1,515.2 acres Private Land 8.6 acres Total Project Land 2,736.0 acres Table A.2.2 identifies federal lands for each section of the Public Land Survey System within the Project Boundary Page 10 Exhibit A Public Public Table A.2.2 Lands of the United States within the FERC Project Boundary Exhibit Township, Range Section Acres G-2 24N 7E 36 0.01 G-3 24N 7E 22 4.54 27 246.57 28 61.36 33 107.07 34 66.40 35 3.38 G-4 23N 7E 3 13.00 4 30.26 33 55.29 G-4 24N 7E 34 14.56 35 5.55 G-5 23N 7E 5 1.22 G-5 24N 7E 32 9.77 G-6 24N 6E 25 7.34 G-6 24N 7E 19 7.26 20 8.32 28 5.28 29 125.89 30 15.52 31 2.76 32 57.08 33 5.14 G-7 24N 6E 12 8.05 13 12.11 G-7 24N 7E 7 4.43 18 1.65 19 5.29 20 0.00 G-8 24N 7E 4 0.11 5 70.88 6 12.68 7 3.76 G-9 24N 6E 25 12.62 26 10.12 27 4.97 34 58.08 35 58.92 Page 11 Exhibit A Public Public 36 1.60 G-10 24N 6E 20 2.67 27 5.00 28 33.74 29 29.31 32 0.97 33 7.41 34 14.24 Total 1212.2