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Home My WebLink About02.17.21 BOS Correspondence - FW_ Compliance Directives issued in FERC P-2105-000,et al. From:Schuman, Amy To:Alpert, Bruce;Bennett, Robin;Clerk of the Board;Connelly, Bill;Cook, Holly;Cook, Robin;Kimmelshue, Tod;Lucero, Debra;Paulsen, Shaina;Pickett, Andy;Ring, Brian;Ritter, Tami;Rodas, Amalia;Sweeney, Kathleen;Teeter, Doug Subject:BOS Correspondence - FW: Compliance Directives issued in FERC P-2105-000,et al. Date:Wednesday, February 17, 2021 9:05:19 AM Please see the email below from FERC. Amy Schuman Associate Clerk of the Board Butte County Administration 25 County Center Drive, Suite 200, Oroville, CA 95965 O: 530.552.3300 |D: 530.552.3308 | F: 530.538.7120 Twitter | Facebook | YouTube | Pinterest -----Original Message----- From: 'FERC eSubscription' <eSubscription@ferc.gov> Sent: Wednesday, February 17, 2021 5:25 AM Subject: Compliance Directives issued in FERC P-2105-000,et al. .ATTENTION: This message originated from outside Butte County. Please exercise judgment before opening attachments, clicking on links, or replying.. On 2/16/2021, the Federal Energy Regulatory Commission (FERC), Washington D.C., issued this document: Docket(s): P-2105-000 P-619-000 P-803-000 Lead Applicant: Pacific Gas and Electric Company Filing Type: Compliance Directives Delegated Order Description: Letter order to Pacific Gas and Electric Company accepting the revised probable maximum flood for seven high hazard dams under the Bucks Creek Project et al under P-619 et al. To view the document for this Issuance, click here https://urldefense.com/v3/__https://elibrary.ferc.gov/eLibrary/filelist?accession_num=20210216- 3093__;!!KNMwiTCp4spf!RoVx1w0xFhvkVgQxx6yUbVYz7bdJQA_fpydOk0mXYrY1K6NYSxaLHD9VmfBJcncfJoFu5D4yvEo$ To modify your subscriptions, click here: https://urldefense.com/v3/__https://ferconline.ferc.gov/eSubscription.aspx__;!!KNMwiTCp4spf!RoVx1w0xFhvkVgQxx6yUbVYz7bdJQA_fpydOk0mXYrY1K6NYSxaLHD9VmfBJcncfJoFu4P1ExOA$ ------------------------------------------------------------------------ Please do not respond to this email. Online help is available here: https://urldefense.com/v3/__http://www.ferc.gov/efiling-help.asp__;!!KNMwiTCp4spf!RoVx1w0xFhvkVgQxx6yUbVYz7bdJQA_fpydOk0mXYrY1K6NYSxaLHD9VmfBJcncfJoFumnVzSqc$ or for phone support, call 866-208-3676. Comments and Suggestions can be sent to this email address: mailto:FERCOnlineSupport@Ferc.gov FEDERAL ENERGY REGULATORY COMMISSION Office of Energy Projects Division of Dam Safety and Inspections San Francisco Regional Office 100 First Street, Suite 2300 San Francisco, CA 94105-3084 (415) 369-3300 Office (415) 369-3322 Facsimile February 16, 2020 In reply refer to: Project Nos. 619-CA, 803-CA, 2105-CA Mr. Jan Nimick, Vice President Pacific Gas and Electric Company Mail Code N11E P.O. Box 770000 San Francisco, CA 94177-0001 Re: Revised Probable Maximum Flood for Bucks Creek, De Sabla-Centerville, and Upper North Fork Feather River Projects Dear Mr. Nimick: This is in response to a letter dated September 14, 2017, from Mr. Neil Wong that submitted the Probable Maximum Flood (PMF) Estimate Revisions dated September 2017 for seven high hazard dams under the Bucks Creek, De Sabla-Centerville, and Upper North Fork Feather River Projects, FERC Nos. 619, 803 and 2105, respectively. The dams included in the study are listed in the Enclosure. We have reviewed the submittal and the results of the revised PMF study are acceptable. However, we have the following comments: 1. With the exception of Lake Almanor Dam, six of the seven dams studied are predicted to overtop for flows calculated from the revised PMF study (either by the PMF stillwater reservoir level alone, or by the stillwater level with added wind-generated setup and wave runup). However, your submittal does not discuss any potential dam safety implications that would result from the overtopping at these dams nor any proposed actions to address this issue. Evaluate the potential impacts that overtopping would have on these dams and provide a plan and schedule to mitigate against any adverse effects that the overtopping could have on dam safety. You must develop a long-term plan and schedule for performing the appropriate analyses, evaluating remedial options, prioritizing which projects to address first, and enacting final remedial measures. 2 2. Since your submittals indicate the potential of flows overtopping your dams during the PMF event, your plan and schedule requested above must include an evaluation of the necessity of implementing interim risk reduction measures (IRRMs). Any IRRMs deemed necessary should be in effect until such time the overtopping concern is resolved. Within 45 days of the date of this letter, please submit a plan and schedule to address the comments. You may also setup a conference call with us to discuss our comments before you submit a response. We appreciate your cooperation in this aspect If you have any questions, please contact the FERC engineers listed in the enclosure. Sincerely, Frank L. Blackett, P.E. Regional Engineer Enclosure Projects and Dams Included in PMF Analysis Enclosure Project Project Name Dam Name Project Engineer No. Edgar Salire 619 Bucks Creek Bucks Lake (415) 369-3369 619 Bucks Creek Lower Bucks Lake Edgar Salire 619 Bucks Creek Grizzly Forebay Edgar Salire Christopher Wang 803 DeSabla-Centerville Philbrook Main (415) 369-3366 Upper North Fork 2105 Lake Almanor Edgar Salire Feather River Upper North Fork 2105 Butt Valley Edgar Salire Feather River Upper North Fork 2105 Belden Forebay Edgar Salire Feather River 1 of 1