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HomeMy WebLinkAbout01.22.26 Board Correspondence - FW_ DOCKET CHANGE- General Correspondence submitted in FERC P-619-190 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; Loeser, Kamie Cc:Nuzum, Danielle Subject:Board Correspondence - FW: DOCKET CHANGE- General Correspondence submitted in FERC P-619-190 by Pacific Gas and Electric Company Date:Friday, January 23, 2026 11:24:19 AM Please see Board Correspondence - -----Original Message----- From: 'FERC eSubscription' <eSubscription@ferc.gov> Sent: Thursday, January 22, 2026 12:26 PM Subject: DOCKET CHANGE- General Correspondence submitted in FERC P-619-190 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 12/22/2025, the following Filing was submitted to the Federal Energy Regulatory Commission (FERC), Washington D.C.: Filer: Pacific Gas and Electric Company Docket(s): P-619-190 Lead Applicant: Pacific Gas and Electric Company Filing Type: General Correspondence Description: Pacific Gas and Electric Company submits request for amendment to revise Clean Water Act Section 401 Water Quality Certification, Condition 1 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=20251222-5045__;!!KNMwiTCp4spf!DArRjOP28gyqwI24knqEUu3-Abgy_MqlkobY2npbbl- ZyqZhLOiCzgb-W6gW-8ZYmrd05vkfxia44xYWT3IB0I53owqIaP7PKm4i$ To modify your subscriptions, click here: Abgy_MqlkobY2npbbl-ZyqZhLOiCzgb-W6gW-8ZYmrd05vkfxia44xYWT3IB0I53owqIaICmXDTi$ ------------------------------------------------------------------------ Please do not respond to this email. Online help is available here: https://urldefense.com/v3/__http://www.ferc.gov/efiling-help.asp__;!!KNMwiTCp4spf!DArRjOP28gyqwI24knqEUu3- Abgy_MqlkobY2npbbl-ZyqZhLOiCzgb-W6gW-8ZYmrd05vkfxia44xYWT3IB0I53owqIaGl7-m_Z$ 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 December 19, 2025 Via Electronic Submittal (E-File) Debbie-Anne Reese, Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C. 20426 Re: Bucks Creek Hydroelectric Project, FERC No. 619-CA Clean Water Act Section 401 Water Quality Certification Condition 1 Request to Amend License Dear Secretary Reese: The Federal Energy Regulatory Commission (FERC) issued a new license for Pacific Gas and Electric Company’s (PG&E) Bucks Creek Hydroelectric Project (Project), FERC No. 619 on June 16, 2022. This letter presents an amendment request to revise State Water Resources Control Board (SWRCB) Clean Water Act (33 U.S.C. §1341) Section 401 Water Quality Certification (WQC) Condition 1. License Requirement Condition 1: Minimum Instream Flows Condition 1 of the Project’s WQC establishes Minimum Instream Flows (MIFs) at six specific locations within the Bucks Creek Hydroelectric Project boundary: 1. Bucks Creek below Bucks Lake Dam 2. Bucks Creek below Lower Bucks Lake Dam 3. Grizzly Creek below Grizzly Forebay 4. Milk Ranch Creek below Three Lakes 5. Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1 6. South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3 The Licensee is required to maintain MIFs at each location as specified in Condition 1. Temporary changes to MIFs for planned maintenance and repairs are currently allowed in reaches 1, 4, 5, and 6, but not in reaches 2 and 3. Modification of MIFs due to operational emergencies are permitted at all locations, provided the Licensee notifies the FERC, Forest Service, California Department of Fish and Wildlife (CDFW), U.S. Fish and Wildlife Service (USFWS), and Deputy Director of the State Water Board’s Division of Water Rights within two business days and documents the event. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Debbie Anne-Reese, Secretary December 19, 2025 Page 2 Annual compliance with MIF requirements must be summarized in a report submitted to the Deputy Director by December 15 each year. The report includes flow data, any deviations, and corrective actions taken. Proposed Amendments The Licensee requests the following amendments to Condition 1: 1. Expand Maintenance Flexibility o Allow temporary MIF modifications for maintenance or repairs at all instream flow release locations, including reaches 2 and 3. 2. Annual Reporting Alignment o Move the annual MIF compliance report due date from December 15 to January 31 to align with Forest Service 4(e) Condition 31 and FERC License Article 401(c). Background and Consultation History PG&E submitted a MIF variance request to the SWRCB for the Lower Bucks Diversion Dam Spillway Project in September 2022. The SWRCB denied the request, citing no mechanism in the WQC for flow modifications at Bucks Creek, and advised PG&E to await action on its 2020 Petition for Reconsideration or request a WQC amendment. To date, PG&E has not received a response to the 2020 Petition. On December 12, 2024, PG&E submitted a formal request to the SWRCB to amend Condition 1 of the Bucks Creek Hydroelectric Project Water Quality Certification (Enclosure 1). The requested amendment sought: • Authorization for temporary MIF variances for planned maintenance and repairs at all instream flow release locations, including Bucks Creek below Lower Bucks Lake Dam and Grizzly Creek below Grizzly Forebay. • A change to the annual reporting due date for MIF compliance, moving it from December 15 to January 31 to align with Forest Service 4(e) Condition 31 reporting requirements. These amendments would provide PG&E flexibility for maintenance and safety-related work, while maintaining environmental protections and streamlining compliance reporting. The SWRCB reviewed the amendment and determined it met regulatory and environmental criteria and issued a formal letter December 11, 2025, approving the amended Condition 1 language. (Enclosure 2) includes the SWRCB letter dated December 11, 2025, including the approved amended WQC Condition 1 language. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Debbie Anne-Reese, Secretary December 19, 2025 Page 3 Conclusion In order to support operational needs while ensuring continued protection of water quality, PG&E respectfully requests FERC formally amend the Bucks Creek project license to incorporate the SWRCB amended WQC Condition 1 language. Should you have any technical questions concerning this matter, please contact PG&E’s license project manager, Jamie Visinoni at (530) 215-6676. Sincerely, Janet Walther Director, Hydro Licensing Enclosures: 1. PG&E Amendment Request: Clean Water Act Section 401 Water Quality Certification Condition 1 dated December 12, 2024 2. State Water Resource Control Board Approval and Amended Water Quality Certificate Condition 1 for the Bucks Creek license (FERC No. 619), dated December 11, 2025 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ENCLOSURE 1 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Power Generation 300 Lakeside Drive Oakland, CA 94612 Mailing Address: P.O. Box 28209 December 12, 2024 Via Electronic Submittal (email) Eric Oppenheimer Executive Director California State Water Resources Control Board 1001 I Street, 14th Floor Sacramento, CA 95814 Eric.Oppenheimer@waterboards.ca.gov RE: Bucks Creek Hydroelectric Project, FERC No. 619-CA Amendment Request: Clean Water Act Section 401 Water Quality Certification Condition 1 Dear Eric Oppenheimer: This letter presents an amendment request to revise State Water Resources Control Board (SWRCB) Clean Water Act (33 U.S.C. §1341) Section 401 Water Quality Certification (WQC) Condition 1 which is part of Pacific Gas and Electric Company’s (PG&E) Bucks Creek Hydroelectric Project, Federal Energy Regulatory Commission (FERC) No. 619 license. On October 23, 2024, PG&E requested a “Pre-filing Meeting” with SWRCB staff, initiating the 30 day waiting period. The meeting took place on November 18, 2024, during which the following revisions were discussed. WQC Condition 1 Revisions Minimum Instream Flow for Maintenance Repairs On September 8, 2022, PG&E submitted a minimum instream flow (MIF) variance request to the SWRCB in support of the Lower Bucks Diversions Dam Spillway Project. The SWRCB responded on November 7, 2022, stating they could not authorize a variance to MIFs as there was no mechanism in the WQC to allow for flow modifications at Bucks Creek. The SWRCB offered two options: 1) wait for SWRCB to act on PG&E’s Petition for Reconsideration, which was submitted to the SWRCB on November 20, 2020, or, 2) request a WQC amendment. To date, PG&E has not received a response to the 2020 Petition for Reconsideration from the SWRCB, therefore, PG&E is requesting an amendment of the WQC. PG&E is requesting an amendment to Condition 1 to allow temporary MIF modifications for maintenance or repairs of the dams, appurtenant structures, outlet facilities, and MIF release facilities at all instream flow release locations described in Condition 1. The current WQC omits instream flow releases captured in Tables 2 (Bucks Creek Minimum Instream Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Eric Oppenheimer, Executive Director December 12, 2024 Page 2 Flow Requirements Below Lower Bucks Lake) and 3 (Grizzly Creek Minimum Instream Flow Requirements Below Grizzly Forebay). Including all flow tables is consistent with the Bucks Creek FERC license articles, the Bucks Creek Section 4(e) conditions, as well as SWRCB WQC and Section 4(e) conditions found in the Phoenix Hydroelectric Project license, FERC No. 1061, the McCloud-Pit Hydroelectric Project license, FERC No. 2106, and Balch Hydroelectric Project license, FERC No. 175. This revision would provide PG&E the flexibility needed to address future maintenance and operational needs at Grizzly Forebay Dam and Lower Bucks Lake Dam without seeking a WQC amendment and FERC license amendment each time. Enclosure 1 provides a redlined version of WQC Condition 1 and Enclosure 2 provides a clean amended copy. Annual Reporting As described in PG&E’s 2020 Petition for Reconsideration of the WQC, the timing for SWRCB Condition 1 Reporting on Minimum Instream Flow Compliance is inconsistent with FERC License Article 401(c) (Requirement to File Reports), Section 4(e) Condition No. 31 (Instream Flows) and Condition No. 39 (Streamflow and Reservoir Level Gaging Plan). This due date is also inconsistent with the SWRCB Division of Water Rights reporting for Water Diversion and Use Reports which is due February 1. The Water Diversion and Use Reporting timeline aligns with United States Geological Survey (USGS) process, where records are provided to the USGS by FERC licensees as a method for reviewing and quality assuring licensees’ accuracy and precision in water records. Calibration measurements (by both licensee hydrographers and USGS staff) are taken throughout the water year and into the fall to confirm accuracy, then collaborative review of these preliminary records occurs in the winter, and the USGS publishes final reviewed data by April. Condition 1 requires PG&E to submit the Minimum Instream Flow report to the SWRCB on December 15 annually. Following the Bucks Creek License, the draft Minimum Instream Flow report is due to other agencies on January 31 (per Forest Service 4(e) Condition No. 31), consultation with all agencies is scheduled to occur annually around April 15 (per 4(e) Condition No. 2, 3 and WQC Cond. 22) and the final report is due to FERC on May 1 (per FERC License Article 401(c)). PG&E requests the WQC due date for the Annual Report be moved from December 15 to January 31. Enclosure 1 provides a redlined version of WQC Condition 1 and Enclosure 2 provides a clean amended copy. PG&E is respectfully requesting: 1) Including language into WQC Condition 1 to allow MIF modifications for maintenance or repairs of the dam, appurtenant structures, outlet facilities, and MIF release facilities. 2) Adjust the annual reporting deadline in WQC Condition 1 to align with 4(e) and FERC license. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Eric Oppenheimer, Executive Director December 12, 2024 Page 3 The requested changes to the WQC align with the Bucks Creek FERC license. Upon approval of the amended WQC by the SWRCB, PG&E will submit a formal request to FERC to amend the license accordingly. Once FERC issues an order amending the license, the revised WQC will be incorporated and implemented as specified. If you have questions or comments regarding this matter, please contact Jamie Visinoni, senior license coordinator for PG&E, at (530) 215-6676. Sincerely, Janet Walther Director, Hydro Licensing Enclosures: 1. Original Clean Water Act Section 401 Water Quality Certification Condition 1 (showing markups) 2. Amended Clean Water Act Section 401 Water Quality Certification Condition 1 cc: With Enclosures Eric Oppenheimer, SWRCB – eric.oppenheimer@waterboards.ca.gov Erik Ekhdahl, SWRCB - Erik.ekdahl@waterboards.ca.gov Nathan Fisch, SWRCB – Nathan.Fisch@waterboards.ca.gov Bryan Muro, SWRCB – bryan.muro@waterboards.ca.gov Parker Thaler, SWRCB – Parker.thaler@waterboards.ca.gov cc: Via E-File With Enclosures Debbie Anne-Reese, FERC DHAC Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Eric Oppenheimer, Executive Director December 12, 2024 Page 4 JNVS (530) 215-6676 \\SFShare01-NAS\PG\PG Safety Env & LM\A. NEW SELM\DeSabla Area Projects\Poe (FERC No. 2107)\License Binder\401 Certification Revision\SWRCB BCC: With Enclosures PGenRegulatoryCorrespondence@pge.com Jamie Visinoni Megan Young Anna Urias Andrew Garcia Rob Riedlinger Kevin Stevens Dan Stephens Michelle Lent SAP: 10209280 Notification: Analyst to attach letter and enclosure. Do not close notification LC Tasks: Task 1 • Analyst to update long-text with date of filing. • Analyst close task New Outgoing Commitments for LC? No Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ENCLOSURE 1 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public CONDITION 1. Minimum Instream Flows The Licensees shall provide instream flow releases at the following locations: • Bucks Creek below Bucks Lake Dam; • Bucks Creek below Lower Bucks Lake Dam; • Grizzly Creek below Grizzly Forebay; • Milk Ranch Creek below Three Lakes; • Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1; and • South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3. The Licensees shall provide minimum instream flows as specified in Tables 1 through 6. For compliance purposes, the point of measurement for each required minimum instream flow is described in the Streamflow and Reservoir Level Gaging Plan (Condition 13) and Tables 1 through 6. The Licensees shall implement specified minimum instream flows within the first 90 days of the new license term, as required in Tables 1 through 6. 1 Where an instream flow release structure must be modified or newly constructed (refer to the Streamflow and Reservoir Level Gaging Plan – Condition 13), the Licensees shall complete the work as soon as reasonably practicable, and within two years after receiving all required permits and approvals for the work. Flows shall be measured at the gage or Project location referenced in this condition unless otherwise approved by the Deputy Director. The Licensees shall comply with applicable California laws and regulations regarding measuring and monitoring water diversions, including California Code of Regulations, title 23, section 933, and amendments thereto, and State Water Board requirements to provide telemetered diversion data on a public website.2 The Licensees shall post all gaged flow and other data to the California Data Exchange Center website, within 24-hours of flow measurement, unless otherwise approved by the Deputy Director. The Licensees shall publicly notice at an easily accessible location on the internet all known events that will affect minimum flow releases (e.g., powerhouse outages, construction, etc.) a minimum of 30 days in advance. Flow Measurements and Reporting for Locations with Continuous Measurements 1 Releases made through manually operated valves may be subject to weather and road conditions affecting access or operability, and they shall be made as soon as reasonably practicable given the circumstances. 2 Information regarding telemetered requirements are available at the State Water Board’s Telemetry Requirements webpage, which is available online at: https://www.waterboards.ca.gov/waterrights/water_issues/programs/measurement_regulation/telemetry_r equirements.html. (Last Accessed October 21, 2020) Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public (Table 2 and Table 3). At locations with continuous instream flow measurements (see Tables 2 and 3), minimum instream flows shall be measured as an average hourly flow calculated at the top of each hour. At a minimum, the Licensees shall calculate the average hourly flow by taking the mean of four instantaneous measurements at 15 minute intervals, as specified by United States Geological Survey (USGS) standards. The average hourly instream flow shall be at least 90 percent of the applicable minimum instream flow requirement set forth in Tables 2 and 3. If the average hourly flow temporarily falls below the applicable minimum instream flow requirement (due to unforeseen circumstances such as debris blocking the intake, ice conditions on the measurement weir, etc.) the Licensees shall restore the required minimum instream flow as soon as reasonably practicable and notify the Deputy Director of the Division of Water Rights (Deputy Director) within 24 hours of the temporary hourly flow deviation. For any temporary average hourly instream flow decreases, the Licensee shall be document the following items in the annual report: (a) duration of decreased flow; (b) cause of decreased flow; and (c) actions the Licensees propose to take or have taken to prevent such a decrease in flows in the future or a description of why such actions are not feasible. The average daily flow shall meet the applicable minimum instream flow requirement. If the average daily flow deviates below the applicable minimum instream flow requirement, the Licensees shall file a report with: Federal Energy Regulatory Commission (FERC); United States Department of Agriculture, Forest Service (Forest Service); United States Department of the Interior, Fish and Wildlife Service (USFWS); California Department of Fish and Wildlife (CDFW); and Deputy Director within 30 days of the incident. The report shall identify, to the extent possible, the cause, magnitude (i.e., instream flows measured versus instream flow requirement), duration of the deviation, any observed or reported adverse environmental impacts resulting from the deviation, all corrective actions taken, and actions the Licensees propose to take to prevent such a decrease in flows in the future. The Deputy Director may require the Licensee to implement corrective actions to prevent similar future deviations in instream flows. Flow Measurements and Reporting for Locations with Manual Data Collection (Table 1, Table 4, Table 5, and Table 6). At locations with manual data collection, the release valve shall be inspected and maintained at least once in each of the spring, summer, and fall of each year. Seasonal inspection, maintenance, and documentation of valve settings will constitute compliance with flow requirements at these locations. Adjustments to the valves during seasonal inspections may be needed to comply with the prescribed minimum instream flows in Tables 1, 4, 5, and 6, and adjustments to the valves shall be documented in the annual report described below. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public The minimum instream flow requirements listed in Tables 1, 2, 3, 4, 5, and 6 may be temporarily modified as required for maintenance or repair of a dam, outlet facility, and minimum flow release facility. The Licensees shall notify FERC, the Forest Service, CDFW, USFWS, and the Deputy Director at least five business days prior to any such modification. The notification shall include: a description of the temporary flow modification; reason for the temporary flow modification; any potential impacts that may result from the temporary flow modification; and anticipated duration of the temporary flow modification. The Deputy Director may require the Licensees to defer the temporary flow modification or implement other actions as part of the temporary flow modification. The Licensees shall notify FERC, Forest Service, CDFW, USFWS, and the Deputy Director within two business days after any modification of the minimum instream flows due to operational emergencies beyond the control of the Licensees, or in the interest of public safety. For the purposes of this condition, an “emergency” is defined as an event that is reasonably out of the control of the Licensees and requires Licensees to take immediate action, either unilaterally or under instruction by law enforcement or other regulatory agency staff, to prevent imminent loss of human life or substantial property damage. An emergency may include but is not limited to: natural events such as landslides, storms or wildfires; malfunction or failure of Project works; and recreation accidents. Extremely dry conditions, including a drought for which the Governor of the State of California declares a drought emergency for Plumas County, shall not be considered an emergency for purposes of this condition. Annual Reporting on Minimum Instream Flow Compliance. After consulting with and incorporating any comments from the Forest Service, CDFW, USFWS, and State Water Board staff, the Licensees shall submit the final annual report to the Deputy Director that summarizes compliance with the minimum instream flow requirements during the prior water year 3 as specified in Condition 25. The annual report shall be submitted to the Deputy Director no later than January 31 and shall include the items referenced below and in this condition. Continuous Monitoring: For all continuously gaged locations, daily mean data shall be included in the report. Manual Monitoring: At locations with flow releases based on manual valve settings, the Licensees shall provide an annual report that includes: • The dates the Licensees checked the outlet works/valves at each site from the beginning of spring through fall; • The estimated flow released at the time the valve was checked, along with a 3 A water year refers to the 12-month time period from October 1 to September 30. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public comparison to the applicable minimum instream flow requirement; • Documentation of any adjustments made at each site at the time the outlet works/valves were checked and the estimated flow released following any adjustments; and • The date the valves were adjusted to the Winter Setting (WS) at Milk Ranch Creek below Three Lakes (Table 4) and at Milk Ranch Conduit Division No. 1 (Table 5), respectively. If the valve(s) was set to the WS prior to November 1, the Licensees shall describe the conditions that required the early adjustment. Deviations from Minimum Instream Flows: Any deviations from the minimum instream flows outlined in this condition shall be summarized in the report, including all information referenced earlier in this condition. The Licensees shall review the instream flow annual report at the annual Ecological Consulting Group (ECG) meeting (Condition 22). Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public Table 1. Bucks Creek Minimum Instream Flow Requirements Below Bucks Lake by Water Year Type (in cubic feet per second [cfs]), as measured at Project ID BUCKS2 All 3 3 3 3 3 3 3 3 3 3 3 3 Table 2. Bucks Creek Minimum Instream Flow Requirements Below Lower Bucks Lake by Water Year Type (in cfs), as measured at USGS Gage No. 11403530 (also referred to as Project ID NF82) Critically Dry 6 4 4 4 6 7 7 7 6 6 6 6 Dry 6 5 5 5 6 8 8 8 8 6 6 6 Normal 6 6 6 6 8 12 12 12 9 8 8 7 Wet 8 8 8 8 10 15 15 15 11 10 8 8 Table 3. Grizzly Creek Minimum Instream Flow Requirements Below Grizzly Forebay by Water Year Type (in cfs), as measured at USGS Gage No. 11404300 (also referred to as Project ID NF22) Critically Dry 6 4 4 4 4 6 6 6 6 6 6 6 Dry 6 6 6 6 6 8 8 8 8 8 8 6 Normal 8 8 8 8 8 10 10 10 9 9 9 8 Wet 9 9 9 9 10 13 13 13 11 10 10 9 Table 4. Milk Ranch Creek Minimum Instream Flow Requirements Below Three Lakes by Water Year Type (in cfs), as measured at Project ID MR2 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public 1 WS: “Winter Setting” refers to when the low-level outlet valve is fully-opened and the natural inflow equals the outflow of the reservoir. The Licensees may open the outlet to the WS prior to November 1 if weather is predicted that may restrict safe access to the valve house. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. Table 5. Milk Ranch Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 1 by Water Year Type (in cfs), as measured at Project ID MRC1 Critically Dry 0.25 0.251 0.251 0.251 0.251 0.251 0.252 0.25 0.25 0.25 0.25 0.25 Dry 0.5 0.251 0.251 0.251 0.251 0.251 0.52 0.5 0.5 0.5 0.5 0.5 Normal 1 0.251 0.251 0.251 0.251 0.251 12 1 1 1 1 1 Wet 2 0.251 0.251 0.251 0.251 0.251 22,3 23 23 23 23 2 1 0.25 or natural inflow, whichever is less. The Licensees may set the outlet to 0.25 cfs prior to November 1 if weather is predicted that may restrict safe access to the diversion. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of the California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. 3 If conditions are met in accordance with Condition 9 – Milk Ranch Conduit Closure, bypass flows shall be implemented from April through August 15 in. Table 6. South Fork Grouse Hollow Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 3 by Water Year Type (in cfs), as measured at Project ID MRC2 All 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public 1 0.5 or natural inflow, whichever is less. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ENCLOSURE 2 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public CONDITION 1. Minimum Instream Flows The Licensees shall provide instream flow releases at the following locations: • Bucks Creek below Bucks Lake Dam; • Bucks Creek below Lower Bucks Lake Dam; • Grizzly Creek below Grizzly Forebay; • Milk Ranch Creek below Three Lakes; • Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1; and • South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3. The Licensees shall provide minimum instream flows as specified in Tables 1 through 6. For compliance purposes, the point of measurement for each required minimum instream flow is described in the Streamflow and Reservoir Level Gaging Plan (Condition 13) and Tables 1 through 6. The Licensees shall implement specified minimum instream flows within the first 90 days of the new license term, as required in Tables 1 through 6. 1 Where an instream flow release structure must be modified or newly constructed (refer to the Streamflow and Reservoir Level Gaging Plan – Condition 13), the Licensees shall complete the work as soon as reasonably practicable, and within two years after receiving all required permits and approvals for the work. Flows shall be measured at the gage or Project location referenced in this condition unless otherwise approved by the Deputy Director. The Licensees shall comply with applicable California laws and regulations regarding measuring and monitoring water diversions, including California Code of Regulations, title 23, section 933, and amendments thereto, and State Water Board requirements to provide telemetered diversion data on a public website.2 The Licensees shall post all gaged flow and other data to the California Data Exchange Center website, within 24-hours of flow measurement, unless otherwise approved by the Deputy Director. The Licensees shall publicly notice at an easily accessible location on the internet all known events that will affect minimum flow releases (e.g., powerhouse outages, construction, etc.) a minimum of 30 days in advance. Flow Measurements and Reporting for Locations with Continuous Measurements 1 Releases made through manually operated valves may be subject to weather and road conditions affecting access or operability, and they shall be made as soon as reasonably practicable given the circumstances. 2 Information regarding telemetered requirements are available at the State Water Board’s Telemetry Requirements webpage, which is available online at: https://www.waterboards.ca.gov/waterrights/water_issues/programs/measurement_regulation/telemetry_r equirements.html. (Last Accessed October 21, 202 0) Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public (Table 2 and Table 3). At locations with continuous instream flow measurements (see Tables 2 and 3), minimum instream flows shall be measured as an average hourly flow calculated at the top of each hour. At a minimum, the Licensees shall calculate the average hourly flow by taking the mean of four instantaneous measurements at 15 minute intervals, as specified by United States Geological Survey (USGS) standards. The average hourly instream flow shall be at least 90 percent of the applicable minimum instream flow requirement set forth in Tables 2 and 3. If the average hourly flow temporarily falls below the applicable minimum instream flow requirement (due to unforeseen circumstances such as debris blocking the intake, ice conditions on the measurement weir, etc.) the Licensees shall restore the required minimum instream flow as soon as reasonably practicable and notify the Deputy Director of the Division of Water Rights (Deputy Director) within 24 hours of the temporary hourly flow deviation. For any temporary average hourly instream flow decreases, the Licensee shall be document the following items in the annual report: (a) duration of decreased flow; (b) cause of decreased flow; and (c) actions the Licensees propose to take or have taken to prevent such a decrease in flows in the future or a description of why such actions are not feasible. The average daily flow shall meet the applicable minimum instream flow requirement. If the average daily flow deviates below the applicable minimum instream flow requirement, the Licensees shall file a report with: Federal Energy Regulatory Commission (FERC); United States Department of Agriculture, Forest Service (Forest Service); United States Department of the Interior, Fish and Wildlife Service (USFWS); California Department of Fish and Wildlife (CDFW); and Deputy Director within 30 days of the incident. The report shall identify, to the extent possible, the cause, magnitude (i.e., instream flows measured versus instream flow requirement), duration of the deviation, any observed or reported adverse environmental impacts resulting from the deviation, all corrective actions taken, and actions the Licensees propose to take to prevent such a decrease in flows in the future. The Deputy Director may require the Licensee to implement corrective actions to prevent similar future deviations in instream flows. Flow Measurements and Reporting for Locations with Manual Data Collection (Table 1, Table 4, Table 5, and Table 6). At locations with manual data collection, the release valve shall be inspected and maintained at least once in each of the spring, summer, and fall of each year. Seasonal inspection, maintenance, and documentation of valve settings will constitute compliance with flow requirements at these locations. Adjustments to the valves during seasonal inspections may be needed to comply with the prescribed minimum instream flows in Tables 1, 4, 5, and 6, and adjustments to the valves shall be documented in the annual report described below. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public The minimum instream flow requirements listed in Tables 1, 2, 3, 4, 5, and 6 may be temporarily modified as required for maintenance or repair of a dam, outlet facility, and minimum flow release facility. The Licensees shall notify FERC, the Forest Service, CDFW, USFWS, and the Deputy Director at least five business days prior to any such modification. The notification shall include: a description of the temporary flow modification; reason for the temporary flow modification; any potential impacts that may result from the temporary flow modification; and anticipated duration of the temporary flow modification. The Deputy Director may require the Licensees to defer the temporary flow modification or implement other actions as part of the temporary flow modification. The Licensees shall notify FERC, Forest Service, CDFW, USFWS, and the Deputy Director within two business days after any modification of the minimum instream flows due to operational emergencies beyond the control of the Licensees, or in the interest of public safety. For the purposes of this condition, an “emergency” is defined as an event that is reasonably out of the control of the Licensees and requires Licensees to take immediate action, either unilaterally or under instruction by law enforcement or other regulatory agency staff, to prevent imminent loss of human life or substantial property damage. An emergency may include but is not limited to: natural events such as landslides, storms or wildfires; malfunction or failure of Project works; and recreation accidents. Extremely dry conditions, including a drought for which the Governor of the State of California declares a drought emergency for Plumas County, shall not be considered an emergency for purposes of this condition. Annual Reporting on Minimum Instream Flow Compliance. After consulting with and incorporating any comments from the Forest Service, CDFW, USFWS, and State Water Board staff, the Licensees shall submit the final annual report to the Deputy Director that summarizes compliance with the minimum instream flow requirements during the prior water year 3 as specified in Condition 25. The annual report shall be submitted to the Deputy Director no later than December 15 January 31 and shall include the items referenced below and in this condition. Continuous Monitoring: For all continuously gaged locations, daily mean data shall be included in the report. Manual Monitoring: At locations with flow releases based on manual valve settings, the Licensees shall provide an annual report that includes: • The dates the Licensees checked the outlet works/valves at each site from the beginning of spring through fall; • The estimated flow released at the time the valve was checked, along with a 3 A water year refers to the 12-month time period from October 1 to September 30. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public comparison to the applicable minimum instream flow requirement; • Documentation of any adjustments made at each site at the time the outlet works/valves were checked and the estimated flow released following any adjustments; and • The date the valves were adjusted to the Winter Setting (WS) at Milk Ranch Creek below Three Lakes (Table 4) and at Milk Ranch Conduit Division No. 1 (Table 5), respectively. If the valve(s) was set to the WS prior to November 1, the Licensees shall describe the conditions that required the early adjustment. Deviations from Minimum Instream Flows: Any deviations from the minimum instream flows outlined in this condition shall be summarized in the report, including all information referenced earlier in this condition. The Licensees shall review the instream flow annual report at the annual Ecological Consulting Group (ECG) meeting (Condition 22). Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public Table 1. Bucks Creek Minimum Instream Flow Requirements Below Bucks Lake by Water Year Type (in cubic feet per second [cfs]), as measured at Project ID BUCKS2 All 3 3 3 3 3 3 3 3 3 3 3 3 Table 2. Bucks Creek Minimum Instream Flow Requirements Below Lower Bucks Lake by Water Year Type (in cfs), as measured at USGS Gage No. 11403530 (also referred to as Project ID NF82) Critically Dry 6 4 4 4 6 7 7 7 6 6 6 6 Dry 6 5 5 5 6 8 8 8 8 6 6 6 Normal 6 6 6 6 8 12 12 12 9 8 8 7 Wet 8 8 8 8 10 15 15 15 11 10 8 8 Table 3. Grizzly Creek Minimum Instream Flow Requirements Below Grizzly Forebay by Water Year Type (in cfs), as measured at USGS Gage No. 11404300 (also referred to as Project ID NF22) Critically Dry 6 4 4 4 4 6 6 6 6 6 6 6 Dry 6 6 6 6 6 8 8 8 8 8 8 6 Normal 8 8 8 8 8 10 10 10 9 9 9 8 Wet 9 9 9 9 10 13 13 13 11 10 10 9 Table 4. Milk Ranch Creek Minimum Instream Flow Requirements Below Three Lakes by Water Year Type (in cfs), as measured at Project ID MR2 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public 1 WS: “Winter Setting” refers to when the low-level outlet valve is fully-opened and the natural inflow equals the outflow of the reservoir. The Licensees may open the outlet to the WS prior to November 1 if weather is predicted that may restrict safe access to the valve house. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. Table 5. Milk Ranch Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 1 by Water Year Type (in cfs), as measured at Project ID MRC1 Critically Dry 0.25 0.251 0.251 0.251 0.251 0.251 0.252 0.25 0.25 0.25 0.25 0.25 Dry 0.5 0.251 0.251 0.251 0.251 0.251 0.52 0.5 0.5 0.5 0.5 0.5 Normal 1 0.251 0.251 0.251 0.251 0.251 12 1 1 1 1 1 Wet 2 0.251 0.251 0.251 0.251 0.251 22,3 23 23 23 23 2 1 0.25 or natural inflow, whichever is less. The Licensees may set the outlet to 0.25 cfs prior to November 1 if weather is predicted that may restrict safe access to the diversion. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of the California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. 3 If conditions are met in accordance with Condition 9 – Milk Ranch Conduit Closure, bypass flows shall be implemented from April through August 15 in. Table 6. South Fork Grouse Hollow Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 3 by Water Year Type (in cfs), as measured at Project ID MRC2 All 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Public 1 0.5 or natural inflow, whichever is less. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ENCLOSURE 2 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 State Water Resources Control Board December 11, 2025 Ms. Janet Walther Director, Hydro Licensing Pacific Gas and Electricity Company Sent via Email: janet.walther@pge.com Bucks Creek Hydroelectric Project Federal Energy Regulatory Commission Project No. 619 Plumas County Bucks Creek, Grizzly Creek, Milk Ranch Creek, and Unnamed Milk Ranch Creek Tributaries AMENDMENT OF THE BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION RELATED TO CONDITION 1 FOR TEMPORARY MINIMUM INSTREAM FLOW VARIANCES AND ANNUAL REPORT TIMING Dear Janet Walther: On December 12, 2024, the State Water Resources Control Board (State Water Board or Board) received a request from the Pacific Gas and Electric Company (PG&E) for an amendment to the Bucks Creek Hydroelectric Project (Project) water quality certification (certification). PG&E’s amendment request is to change Condition 1: Minimum Instream Flows (Condition 1) of the Project certification to: (1) allow for temporary changes to minimum instream flows (MIFs) for planned maintenance and repairs of Project facilities; and (2) change the Annual Reporting on Minimum Instream Flow Compliance from December 15 to January 31 to align with United States Forest Service (Forest Service) 4(e) reporting requirement for Condition No. 31: Instream Flows. Background PG&E and the City of Santa Clara own and operate the Project, which is located in the North Fork Feather River watershed in Plumas County. The Project has an authorized installed capacity of 84.8 megawatts and is comprised of two developments: (1) Bucks Creek Development; and (2) Grizzly Development. The major components of the Bucks Creek Development include: Bucks Lake Dam, Bucks Lake Reservoir, Bucks Creek Penstocks, Bucks Powerhouse and Switchyard, Three Lakes Dam, Three Lakes (i.e., Lower Lake, Middle Lake, and Upper Lake), Milk Ranch Conduit, Lower Bucks Lake Dam, Lower Bucks Lake, Grizzly Forebay, Grizzly Forebay Dam, and Grizzly Forebay Tunnel. The major components of the Grizzly Development include the Grizzly Powerhouse Tunnel and the Grizzly Powerhouse. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Janet Walther December 11, 2025 2 On October 22, 2020, the State Water Board’s Executive Director issued the original Project certification. On November 20, 2020, PG&E filed a Petition for Reconsideration of the Water Quality Certification for the Bucks Creek Hydroelectric Project (Petition). PG&E’s Petition is currently pending before the State Water Board. This certification amendment does not constitute an action on PG&E’s pending Petition. Condition 1: Minimum Instream Flows Amendment Discussion Condition 1 establishes MIFs in the following Project reaches: (1) Bucks Creek below Bucks Lake Dam; (2) Bucks Creek below Lower Bucks Lake; (3) Grizzly Creek below Grizzly Forebay; (4) Milk Ranch Creek below Three Lakes; (5) Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1; and (6) South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3. Condition 1 also allows temporary changes to MIFs for planned maintenance and repairs in reaches 1, 4, 5, and 6, but does not allow for temporary changes to MIFs in reach 2 (Bucks Creek below Lower Bucks Lake Dam) and reach 3 (Grizzly Creek below Grizzly Forebay). Additionally, Condition 1 allows for changes to MIFs for emergency situations and requires PG&E to submit an annual report to the Deputy Director for the State Water Board’s Division of Water Rights (Deputy Director) that summarizes compliance with MIFs during the prior water year. The annual report is due to the Deputy Director by December 15 of each year. PG&E’s December 12, 2024 certification amendment requests: (1) adding reaches 2 and 3 to the reaches where changes to MIFs are allowed for planned maintenance and repairs; and (2) changing the annual report due date from December 15 to January 31 consistent with the timing of reporting required by Forest Service 4(e) Condition 31: Instream Flows. Updating Condition 1 to allow for variances to MIFs for facility maintenance or repairs in reaches 2 and 3 will provide PG&E with the flexibility to conduct maintenance and safety related work in these reaches throughout the Project’s existing Federal Energy Regulatory Commission (FERC) license term. This amendment requires that PG&E request review and approval of proposed MIF variances in advance implementation of changes to the MIFs and notice of Deputy Director approved changes to MIFs. The noticing and Deputy Director approval provisions ensure planned MIF variances are protective of water quality and beneficial uses and is consistent with similar provisions in recent hydroelectric project certifications. Aligning the annual report due date with Forest Service requirements will streamline PG&E’s reporting requirements without impacting the State Water Board’s oversight of the Project certification. Additionally, this amendment corrects an incomplete statement related to bypass flow requirements in Table 5 of Condition 1. California Environmental Quality Act Issuance of a certification amendment is a discretionary action that requires the State Water Board to comply with the California Environmental Quality Act (CEQA). The State Water Board reviewed the proposed amendment and determined that the request meets the criteria for a Class 1 categorical exemption – Existing Facilities (Cal. Code Regs., tit. 14, § 15301, subd. (m)) and that there is no reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Janet Walther December 11, 2025 3 The State Water Board will file a Notice of Exemption with the Governor’s Office of Land Use and Climate Innovation within five working days of issuance of this Project certification amendment. (Cal. Code Regs., tit. 14, § 15062.) Noticing On January 10, 2025, the State Water Board provided public notice of PG&E’s request for an amendment to the Project certification, pursuant to California Code of Regulations, title 23, section 3858, by posting information describing the amendment request on the Division of Water Rights’ Water Quality Certification Program Public Notices webpage and noticing the “Water Rights Water Quality Certification” email subscription list. The State Water Board received no comments in response to the notice. Additionally, on November 24, 2025, State Water Board staff shared the certification amendment application with staff at the Central Valley Regional Water Quality Control Board and received no comments. Certification Amendment The State Water Board finds that the Board’s amendment of Condition 1 will comply with state water quality standards and other appropriate requirements of state law. Amended Condition 1 is provided in Attachment A: Bucks Creek Hydroelectric Project Water Quality Certification Amendment to Condition 1 (Strikethrough/Underline Version) and Attachment B: Bucks Creek Hydroelectric Project Water Quality Certification Amendment to Condition 1 (Clean Version). Notwithstanding the amendment request, maintenance activities may still be subject to Condition 23: Dewatering and Diversion of the Project certification, which requires PG&E to submit a Dewatering and Diversion Plan to the Deputy Director for review and approval for any activity that requires water diversion or in-water work below the maximum water surface elevation or high-water mark. The State Water Board hereby amends the Project certification with the changes presented in Attachment A of this Project certification amendment and as noted in this letter. This Project certification amendment is granted with the following additional conditions: (1) This certification amendment is subject to modification or revocation upon administrative or judicial review, including review and amendment pursuant to Water Code section 13330 and California Code of Regulations, title 23, division 3, chapter 28, article 6 (commencing with section 3867). (2) This certification amendment is not intended and shall not be construed to apply to any activity involving a hydroelectric facility and requiring a FERC license or an amendment to a FERC license unless the pertinent certification application was filed pursuant to California Code of Regulations, title 23, section 3855, subdivision (b) and that application specifically identified that a FERC license or amendment to a FERC license for a hydroelectric facility was being sought. (3) This certification amendment is conditioned upon total payment of any fee required under California Code of Regulations, title 23, division 3, chapter 28 and owed by the applicant. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Janet Walther December 11, 2025 4 If you have questions regarding this amendment, please contact Bryan Muro, Project Manager, by email to: Bryan.Muro@waterboards.ca.gov or by phone call to: (916) 327-8702. Sincerely, Eric Oppenheimer Executive Director Attachment A: Bucks Creek Hydroelectric Project Water Quality Certification Amendment to Condition 1 (Strikethrough/Underline Version) Attachment B: Bucks Creek Hydroelectric Project Water Quality Certification Amendment to Condition 1 (Clean Version) ec: Debbie Anne-Reese, Secretary Federal Energy Regulatory Commission Via e-filing to FERC Project Docket No. 619 Sahrye Cohen, United States Environmental Protection Agency, Region 9 R9cwa401@epa.gov Leigh Bartoo, United States Fish and Wildlife Service aondrea_bartoo@fws.gov Leslie Edlund, United States Forest Service leslie.edlund@usda.gov Kurt Sable, United States Forest Service kurt.sable@usda.gov Erika Brenzovich, United States Forest Service ebrenzovich@fs.fed.us Michael Maher, California Department of Fish and Wildlife michael.maher@wildlife.ca.gov Amber Mouser, California Department of Fish and Wildlife Amber.Mouser@wildlife.ca.gov Jason Julienne, California Department of Fish and Wildlife Jason.Julienne@wildlife.ca.gov Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Janet Walther December 11, 2025 5 Patrick Pulupa, Executive Officer Central Valley Regional Water Quality Control Board Patrick.Pulupa@waterboards.ca.gov Steve Hance, Division Manager City of Santa Clara SHance@SantaClaraca.gov Larry Wise Jr., Pacific Gas and Electric Company LMWO@pge.com Jamie Visinoni, Pacific Gas and Electric Company jnvs@pge.com Megan Young, Pacific Gas and Electric Company MRY2@pge.com Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) This attachment shows the changes to Conditions 1: Minimum Instream Flows of the water quality certification (certification) for Pacific Gas and Electric Company’s Bucks Creek Hydroelectric Project, issued on October 22, 2020. Text from the certification is shown as regular text. Additions are shown in the bold, underlined text, and deletions are shown in red strikethrough text. Condition 1. Minimum Instream Flows The Licensees shall provide instream flow releases at the following locations: • Bucks Creek below Bucks Lake Dam; • Bucks Creek below Lower Bucks Lake Dam; • Grizzly Creek below Grizzly Forebay; • Milk Ranch Creek below Three Lakes; • Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1; and • South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3. The Licensees shall provide minimum instream flows as specified in Tables 1 through 6. For compliance purposes, the point of measurement for each required minimum instream flow is described in the Streamflow and Reservoir Level Gaging Plan (Condition 13) and Tables 1 through 6. The Licensees shall implement specified minimum instream flows within the first 90 days of the new license term, as required in Tables 1 through 6.9 Where an instream flow release structure must be modified or newly constructed (refer to the Streamflow and Reservoir Level Gaging Plan – Condition 13), the Licensees shall complete the work as soon as reasonably practicable, and within two years after receiving all required permits and approvals for the work. Flows shall be measured at the gage or Project location referenced in this condition unless otherwise approved by the Deputy Director of the Division of Water Rights (Deputy Director). The Licensees shall comply with applicable California laws and regulations regarding measuring and monitoring water diversions, including California Code of Regulations, title 23, section 933, and amendments thereto, and State Water Board 9 Releases made through manually operated valves may be subject to weather and road conditions affecting access or operability, and they shall be made as soon as reasonably practicable given the circumstances. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 2 requirements to provide telemetered diversion data on a public website.10 The Licensees shall post all gaged flow and other data to the California Data Exchange Center website, within 24- hours of flow measurement, unless otherwise approved by the Deputy Director. The Licensees shall publicly notice at an easily accessible location on the internet all known events that will affect minimum flow releases (e.g., powerhouse outages, construction, etc.) a minimum of 30 days in advance. Flow Measurements and Reporting for Locations with Continuous Measurements (Table 2 and Table 3). At locations with continuous instream flow measurements (see Tables 2 and 3), minimum instream flows shall be measured as an average hourly flow calculated at the top of each hour. At a minimum, the Licensees shall calculate the average hourly flow by taking the mean of four instantaneous measurements at 15-minute intervals, as specified by United States Geological Survey (USGS) standards. The average hourly instream flow shall be at least 90 percent of the applicable minimum instream flow requirement set forth in Tables 2 and 3. If the average hourly flow temporarily falls below the applicable minimum instream flow requirement (due to unforeseen circumstances such as debris blocking the intake, ice conditions on the measurement weir, etc.) the Licensees shall restore the required minimum instream flow as soon as reasonably practicable and notify the Deputy Director of the Division of Water Rights (Deputy Director) within 24 hours of the temporary hourly flow deviation. For any temporary average hourly instream flow decreases, the Licensee shall be document the following items in the annual report: (a) duration of decreased flow; (b) cause of decreased flow; and (c) actions the Licensees propose to take or have taken to prevent such a decrease in flows in the future or a description of why such actions are not feasible. The average daily flow shall meet the applicable minimum instream flow requirement. If the average daily flow deviates below the applicable minimum instream flow requirement, the Licensees shall file a report with: Federal Energy Regulatory Commission (FERC); United States Department of Agriculture, Forest Service (Forest Service); United States Department of the Interior, Fish and Wildlife Service (USFWS); California Department of Fish and Wildlife (CDFW); and the Deputy Director within 30 days of the incident. The report shall identify, to the extent possible, the cause, magnitude (i.e., instream flows measured versus instream flow requirement), duration of the deviation, any observed or reported adverse environmental impacts resulting from the deviation, all corrective actions taken, and actions the Licensees propose to take to prevent such a decrease in flows in the future. The Deputy Director may require the Licensees to implement corrective actions to prevent similar future deviations in instream flows. Flow Measurements and Reporting for Locations with Manual Data Collection (Table 1, Table 4, Table 5, and Table 6). At locations with manual data collection, the release valve shall be 10 Information regarding telemetered requirements are available at the State Water Board’s Telemetry Requirements webpage, which is available online at: https://www.waterboards.ca.gov/waterrights/water_issues/programs/measurement_regulation/t elemetry_requirements.html. (Last Accessed October 21, 2020) Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 3 inspected and maintained at least once in each of the spring, summer, and fall of each year. Seasonal inspection, maintenance, and documentation of valve settings will constitute compliance with flow requirements at these locations. Adjustments to the valves during seasonal inspections may be needed to comply with the prescribed minimum instream flows in Tables 1, 4, 5, and 6, and adjustments to the valves shall be documented in the annual report described below. The minimum instream flow requirements listed in Tables 1, 4, 5, and 6 may be temporarily modified as required for maintenance or repair of a dam, outlet facility, and minimum flow release facility. The Licensees shall notify FERC, the Forest Service, CDFW, USFWS, and the Deputy Director at least five business days prior to any such modification. The notification shall include: a description of the temporary flow modification; reason for the temporary flow modification; any potential impacts that may result from the temporary flow modification; and anticipated duration of the temporary flow modification. The Deputy Director may require the Licensees to defer the temporary flow modification or implement other actions as part of the temporary flow modification. The Licensees may request temporary minimum instream flow variances for planned and/or non-emergency work including facility construction, modification, or maintenance activities. Requests for temporary variance to the minimum instream flows for non-emergency work shall be submitted to the Deputy Director for review and consideration of approval as far in advance as practicable and no less than four months in advance of the desired effective date. The Licensees shall notify the Forest Service, CDFW and USFWS of the proposed temporary variance to minimum instream flows. The request shall include: a description of the proposed work that necessitates the variance, including a schedule for the proposed work; a description of the proposed variance to minimum instream flows, including the planned duration and magnitude of the variance; documentation of notification to the Forest Service, CDFW, USFWS and any comments received; and proposed measures that will be implemented to protect water quality and beneficial uses during the proposed minimum instream flow variance. The Deputy Director may deny the request or require changes as part of any approval. Upon Deputy Director approval of the variance, the Licensees shall provide public notice of the planned variance on the Licensees’ Project webpage(s) and FERC docket a minimum of 30 days in advance of the planned variance. The Licensees shall file with the FERC any Deputy Director-approved variances to minimum instream flows and any Deputy Director-approved amendments thereto. The Licensees shall notify FERC, Forest Service, CDFW, USFWS, and the Deputy Director within two business days after any modification of the minimum instream flows due to operational emergencies beyond the control of the Licensees, or in the interest of public safety. For the purposes of this condition, an “emergency” is defined as an event that is reasonably out of the control of the Licensees and requires Licensees to take immediate action, either unilaterally or under instruction by law enforcement or other regulatory agency staff, to prevent imminent loss of human life or substantial property damage. An emergency may include but is not limited to: natural events such as landslides, storms or wildfires; malfunction or failure of Project works; and recreation accidents. Extremely dry conditions, including a drought for Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 4 which the Governor of the State of California declares a drought emergency for Plumas County, shall not be considered an emergency for purposes of this condition. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 5 Annual Reporting on Minimum Instream Flow Compliance. After consulting with and incorporating any comments from the Forest Service, CDFW, USFWS, and State Water Board staff, the Licensees shall submit the final annual report to the Deputy Director that summarizes compliance with the minimum instream flow requirements during the prior water year 11 as specified in Condition 25. The annual report shall be submitted to the Deputy Director no later than December 15January 31 and shall include the items referenced below and in this condition. Continuous Monitoring: For all continuously gaged locations, daily mean data shall be included in the report. Manual Monitoring: At locations with flow releases based on manual valve settings, the Licensees shall provide an annual report that includes: • The dates the Licensees checked the outlet works/valves at each site from the beginning of spring through fall; • The estimated flow released at the time the valve was checked, along with a comparison to the applicable minimum instream flow requirement; • Documentation of any adjustments made at each site at the time the outlet works/valves were checked and the estimated flow released following any adjustments; and • The date the valves were adjusted to the Winter Setting (WS) at Milk Ranch Creek below Three Lakes (Table 4) and at Milk Ranch Conduit Division No. 1 (Table 5), respectively. If the valve(s) was set to the WS prior to November 1, the Licensees shall describe the conditions that required the early adjustment. Deviations from Minimum Instream Flows: Any deviations from the minimum instream flows outlined in this condition shall be summarized in the report, including all information referenced earlier in this condition. The Licensees shall review the instream flow annual report at the annual Ecological Consulting Group (ECG) meeting (Condition 22). 11 A water year refers to the 12-month time period from October 1 to September 30. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 6 Table 1. Bucks Creek Minimum Instream Flow Requirements Below Bucks Lake by Water Year Type (in cubic feet per second [cfs]), as measured at Project ID BUCKS2 All 3 3 3 3 3 3 3 3 3 3 3 3 Table 2. Bucks Creek Minimum Instream Flow Requirements Below Lower Bucks Lake by Water Year Type (in cfs), as measured at USGS Gage No. 11403530 (also referred to as Project ID NF82) Critically Dry 6 4 4 4 6 7 7 7 6 6 6 6 Dry 6 5 5 5 6 8 8 8 8 6 6 6 Wet 8 8 8 8 10 15 15 15 11 10 8 8 Table 3. Grizzly Creek Minimum Instream Flow Requirements Below Grizzly Forebay by Water Year Type (in cfs), as measured at USGS Gage No. 11404300 (also referred to as Project ID NF22) Critically Dry 6 4 4 4 4 6 6 6 6 6 6 6 Normal 8 8 8 8 8 10 10 10 9 9 9 8 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 7 Table 4. Milk Ranch Creek Minimum Instream Flow Requirements Below Three Lakes by Water Year Type (in cfs), as measured at Project ID MR2 Critically Dry 0.25 WS1 2 Dry 0.5 WS WS WS WS WS 0.52 0.5 0.5 0.5 0.5 0.5 2 Wet 2 WS WS WS WS WS 22 2 2 2 2 2 1 WS: “Winter Setting” refers to when the low-level outlet valve is fully-opened and the natural inflow equals the outflow of the reservoir. The Licensees may open the outlet to the WS prior to November 1 if weather is predicted that may restrict safe access to the valve house. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. Table 5. Milk Ranch Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 1 by Water Year Type (in cfs), as measured at Project ID MRC1 Critically Dry 0.25 0.251 0.251 0.251 0.251 0.251 0.252 0.25 0.25 0.25 0.25 0.25 1 1 1 1 1 2 Normal 1 0.251 0.251 0.251 0.251 0.251 12 1 1 1 1 1 1 1 1 1 1 2,3 3 3 3 3 1 0.25 or natural inflow, whichever is less. The Licensees may set the outlet to 0.25 cfs prior to November 1 if weather is predicted that may restrict safe access to the diversion. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of the California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. 3 If conditions are met in accordance with Condition 9 – Milk Ranch Conduit Closure, bypass flows shall be implemented from April through August 15 in wet water years. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT A: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENT TO CONDITION 1 (STRIKETHOUGH/UNDERLINE VERSION) 8 Table 6. South Fork Grouse Hollow Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 3 by Water Year Type (in cfs), as measured at Project ID MRC2 All 0.51 1 1 1 1 1 1 1 1 1 1 1 1 0.5 or natural inflow, whichever is less. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 1 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) This attachment shows the clean version of Condition 1: Minimum Instream Flows of the water quality certification (certification) for Pacific Gas and Electric Company’s Bucks Creek Hydroelectric Project), issued on October 22, 2020. Text from the certification is shown as regular text. Condition 1. Minimum Instream Flows The Licensees shall provide instream flow releases at the following locations: • Bucks Creek below Bucks Lake Dam; • Bucks Creek below Lower Bucks Lake Dam; • Grizzly Creek below Grizzly Forebay; • Milk Ranch Creek below Three Lakes; • Milk Ranch Creek at Milk Ranch Conduit Diversion No. 1; and • South Fork Grouse Hollow Creek at Milk Ranch Conduit Diversion No. 3. The Licensees shall provide minimum instream flows as specified in Tables 1 through 6. For compliance purposes, the point of measurement for each required minimum instream flow is described in the Streamflow and Reservoir Level Gaging Plan (Condition 13) and Tables 1 through 6. The Licensees shall implement specified minimum instream flows within the first 90 days of the new license term, as required in Tables 1 through 6.9 Where an instream flow release structure must be modified or newly constructed (refer to the Streamflow and Reservoir Level Gaging Plan – Condition 13), the Licensees shall complete the work as soon as reasonably practicable, and within two years after receiving all required permits and approvals for the work. Flows shall be measured at the gage or Project location referenced in this condition unless otherwise approved by the Deputy Director of the Division of Water Rights (Deputy Director). The Licensees shall comply with applicable California laws and regulations regarding measuring and monitoring water diversions, including California Code of Regulations, title 23, section 933, and amendments thereto, and State Water Board requirements to provide telemetered diversion data on a public website.10 The Licensees shall post all gaged flow and 9 Releases made through manually operated valves may be subject to weather and road conditions affecting access or operability, and they shall be made as soon as reasonably practicable given the circumstances. 10 Information regarding telemetered requirements are available at the State Water Board’s Telemetry Requirements webpage, which is available online at: https://www.waterboards.ca.gov/waterrights/water_issues/programs/measurement_regulation/t elemetry_requirements.html. (Last Accessed October 21, 2020) Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 2 other data to the California Data Exchange Center website, within 24-hours of flow measurement, unless otherwise approved by the Deputy Director. The Licensees shall publicly notice at an easily accessible location on the internet all known events that will affect minimum flow releases (e.g., powerhouse outages, construction, etc.) a minimum of 30 days in advance. Flow Measurements and Reporting for Locations with Continuous Measurements (Table 2 and Table 3). At locations with continuous instream flow measurements (see Tables 2 and 3), minimum instream flows shall be measured as an average hourly flow calculated at the top of each hour. At a minimum, the Licensees shall calculate the average hourly flow by taking the mean of four instantaneous measurements at 15-minute intervals, as specified by United States Geological Survey (USGS) standards. The average hourly instream flow shall be at least 90 percent of the applicable minimum instream flow requirement set forth in Tables 2 and 3. If the average hourly flow temporarily falls below the applicable minimum instream flow requirement (due to unforeseen circumstances such as debris blocking the intake, ice conditions on the measurement weir, etc.) the Licensees shall restore the required minimum instream flow as soon as reasonably practicable and notify the Deputy Director within 24 hours of the temporary hourly flow deviation. For any temporary average hourly instream flow decreases, the Licensee shall be document the following items in the annual report: (a) duration of decreased flow; (b) cause of decreased flow; and (c) actions the Licensees propose to take or have taken to prevent such a decrease in flows in the future or a description of why such actions are not feasible. The average daily flow shall meet the applicable minimum instream flow requirement. If the average daily flow deviates below the applicable minimum instream flow requirement, the Licensees shall file a report with: Federal Energy Regulatory Commission (FERC); United States Department of Agriculture, Forest Service (Forest Service); United States Department of the Interior, Fish and Wildlife Service (USFWS); California Department of Fish and Wildlife (CDFW); and the Deputy Director within 30 days of the incident. The report shall identify, to the extent possible, the cause, magnitude (i.e., instream flows measured versus instream flow requirement), duration of the deviation, any observed or reported adverse environmental impacts resulting from the deviation, all corrective actions taken, and actions the Licensees propose to take to prevent such a decrease in flows in the future. The Deputy Director may require the Licensees to implement corrective actions to prevent similar future deviations in instream flows. Flow Measurements and Reporting for Locations with Manual Data Collection (Table 1, Table 4, Table 5, and Table 6). At locations with manual data collection, the release valve shall be inspected and maintained at least once in each of the spring, summer, and fall of each year. Seasonal inspection, maintenance, and documentation of valve settings will constitute compliance with flow requirements at these locations. Adjustments to the valves during seasonal inspections may be needed to comply with the prescribed minimum instream flows in Tables 1, 4, 5, and 6, and adjustments to the valves shall be documented in the annual report described below. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 3 The Licensees may request temporary minimum instream flow variances for planned and/or non-emergency work including facility construction, modification, or maintenance activities. Requests for temporary variance to the minimum instream flows for non-emergency work shall be submitted to the Deputy Director for review and consideration of approval as far in advance as practicable and no less than four months in advance of the desired effective date. The Licensees shall notify the Forest Service, CDFW and USFWS of the proposed temporary variance to minimum instream flows. The request shall include: a description of the proposed work that necessitates the variance, including a schedule for the proposed work; a description of the proposed variance to minimum instream flows, including the planned duration and magnitude of the variance; documentation of notification to the Forest Service, CDFW, USFWS and any comments received; and proposed measures that will be implemented to protect water quality and beneficial uses during the proposed minimum instream flow variance. The Deputy Director may deny the request or require changes as part of any approval. Upon Deputy Director approval of the variance, the Licensees shall provide public notice of the planned variance on the Licensees’ Project webpage(s) and FERC docket a minimum of 30 days in advance of the planned variance. The Licensees shall file with the FERC any Deputy Director-approved variances to minimum instream flows and any Deputy Director-approved amendments thereto. The Licensees shall notify FERC, Forest Service, CDFW, USFWS, and the Deputy Director within two business days after any modification of the minimum instream flows due to operational emergencies beyond the control of the Licensees, or in the interest of public safety. For the purposes of this condition, an “emergency” is defined as an event that is reasonably out of the control of the Licensees and requires Licensees to take immediate action, either unilaterally or under instruction by law enforcement or other regulatory agency staff, to prevent imminent loss of human life or substantial property damage. An emergency may include but is not limited to: natural events such as landslides, storms or wildfires; malfunction or failure of Project works; and recreation accidents. Extremely dry conditions, including a drought for which the Governor of the State of California declares a drought emergency for Plumas County, shall not be considered an emergency for purposes of this condition. Annual Reporting on Minimum Instream Flow Compliance. After consulting with and incorporating any comments from the Forest Service, CDFW, USFWS, and State Water Board staff, the Licensees shall submit the final annual report to the Deputy Director that summarizes compliance with the minimum instream flow requirements during the prior water year 11 as specified in Condition 25. The annual report shall be submitted to the Deputy Director no later than January 31 and shall include the items referenced below and in this condition. Continuous Monitoring: For all continuously gaged locations, daily mean data shall be included in the report. Manual Monitoring: At locations with flow releases based on manual valve settings, the Licensees shall provide an annual report that includes: 11 A water year refers to the 12-month time period from October 1 to September 30. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 4 • The dates the Licensees checked the outlet works/valves at each site from the beginning of spring through fall; • The estimated flow released at the time the valve was checked, along with a comparison to the applicable minimum instream flow requirement; • Documentation of any adjustments made at each site at the time the outlet works/valves were checked and the estimated flow released following any adjustments; and • The date the valves were adjusted to the Winter Setting (WS) at Milk Ranch Creek below Three Lakes (Table 4) and at Milk Ranch Conduit Division No. 1 (Table 5), respectively. If the valve(s) was set to the WS prior to November 1, the Licensees shall describe the conditions that required the early adjustment. Deviations from Minimum Instream Flows: Any deviations from the minimum instream flows outlined in this condition shall be summarized in the report, including all information referenced earlier in this condition. The Licensees shall review the instream flow annual report at the annual Ecological Consulting Group (ECG) meeting (Condition 22). Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 5 Table 1. Bucks Creek Minimum Instream Flow Requirements Below Bucks Lake by Water Year Type (in cubic feet per second [cfs]), as measured at Project ID BUCKS2 Water Year Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep All 3 3 3 3 3 3 3 3 3 3 3 3 Table 2. Bucks Creek Minimum Instream Flow Requirements Below Lower Bucks Lake by Water Year Type (in cfs), as measured at USGS Gage No. 11403530 (also referred to as Project ID NF82) Water Year Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Critically Dry 6 4 4 4 6 7 7 7 6 6 6 6 Dry 6 5 5 5 6 8 8 8 8 6 6 6 Normal 6 6 6 6 8 12 12 12 9 8 8 7 Wet 8 8 8 8 10 15 15 15 11 10 8 8 Table 3. Grizzly Creek Minimum Instream Flow Requirements Below Grizzly Forebay by Water Year Type (in cfs), as measured at USGS Gage No. 11404300 (also referred to as Project ID NF22) Water Year Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Critically Dry 6 4 4 4 4 6 6 6 6 6 6 6 Dry 6 6 6 6 6 8 8 8 8 8 8 6 Normal 8 8 8 8 8 10 10 10 9 9 9 8 Wet 9 9 9 9 10 13 13 13 11 10 10 9 Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 6 Table 4. Milk Ranch Creek Minimum Instream Flow Requirements Below Three Lakes by Water Year Type (in cfs), as measured at Project ID MR2 Water Year Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Critically Dry 0.25 WS1 WS WS WS WS 0.252 0.25 0.25 0.25 0.25 0.25 Dry 0.5 WS WS WS WS WS 0.52 0.5 0.5 0.5 0.5 0.5 Normal 1 WS WS WS WS WS 12 1 1 1 1 1 Wet 2 WS WS WS WS WS 22 2 2 2 2 2 1 WS: “Winter Setting” refers to when the low-level outlet valve is fully-opened and the natural inflow equals the outflow of the reservoir. The Licensees may open the outlet to the WS prior to November 1 if weather is predicted that may restrict safe access to the valve house. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. Table 5. Milk Ranch Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 1 by Water Year Type (in cfs), as measured at Project ID MRC1 Water Year Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Critically Dry 0.25 0.251 0.251 0.251 0.251 0.251 0.252 0.25 0.25 0.25 0.25 0.25 Dry 0.5 0.251 0.251 0.251 0.251 0.251 0.52 0.5 0.5 0.5 0.5 0.5 Normal 1 0.251 0.251 0.251 0.251 0.251 12 1 1 1 1 1 Wet 2 0.251 0.251 0.251 0.251 0.251 22,3 23 23 23 23 2 1 0.25 or natural inflow, whichever is less. The Licensees may set the outlet to 0.25 cfs prior to November 1 if weather is predicted that may restrict safe access to the diversion. 2 The Licensees shall adjust the valve within two business days, or as soon thereafter as accessible, following the publication of the California Department of Water Resources water year forecast of unimpaired runoff in the Feather River at Oroville as set forth in Bulletin 120. 3 If conditions are met in accordance with Condition 9 – Milk Ranch Conduit Closure, bypass flows shall be implemented from April through August 15 in wet water years. Document Accession #: 20251222-5045 Filed Date: 12/22/2025 ATTACHMENT B: BUCKS CREEK HYDROELECTRIC PROJECT WATER QUALITY CERTIFICATION AMENDMENTS TO CONDITION 1 (CLEAN VERSION) 7 Table 6. South Fork Grouse Hollow Creek Minimum Instream Flow Requirements at Milk Ranch Conduit Diversion No. 3 by Water Year Type (in cfs), as measured at Project ID MRC2 WY Type Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep All 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 1 0.5 or natural inflow, whichever is less Document Accession #: 20251222-5045 Filed Date: 12/22/2025 Document Content(s) PGE20251219_619_Bucks_ReqtoAmend_WQCCond.1.pdf ...........................1 Document Accession #: 20251222-5045 Filed Date: 12/22/2025