HomeMy WebLinkAbout03.02.21 Board Correspondence - FW_ Supplemental_Additional Information submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.
From:Clerk of the Board
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:Board Correspondence - FW: Supplemental/Additional Information submitted in FERC P-803-000 by Pacific Gas
and Electric Company,et al.
Date:Tuesday, March 2, 2021 2:48:50 PM
Good afternoon,
Please see the email correspondence below from FERC.
Shaina Paulsen
Administrative Assistant, Senior
Butte County Administration
25 County Center Drive, Suite 200, Oroville, CA 95965
O: 530.552.3300 |D: 530.552.3304 | F: 530.538.7120
-----Original Message-----
From: 'FERC eSubscription' <eSubscription@ferc.gov>
Sent: Tuesday, March 2, 2021 2:05 PM
Subject: Supplemental/Additional Information submitted in FERC P-803-000 by Pacific Gas and Electric
Company,et al.
.ATTENTION: This message originated from outside Butte County. Please exercise judgment before opening
attachments, clicking on links, or replying..
On 3/2/2021, the following Filing was submitted to the Federal Energy Regulatory Commission (FERC),
Washington D.C.:
Filer: Pacific Gas and Electric Company
No Organization Found (as Agent)
Docket(s): P-803-000
Lead Applicant: Pacific Gas and Electric Company
Filing Type: Supplemental/Additional Information
Description: Pacific Gas and Electric Company submits Response Regarding DeSabla Centerville Hydroelectric
Project 2019 Dam Safety Inspection Follow-Up Actions under P-803.
To view the document for this Filing, click here
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245 Market Street
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San Francisco, CA 94105
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March 2, 2021
Via Electronic Submittal (E-File)
Mr. Frank L. Blackett, P.E., Regional Engineer
San Francisco Regional Office
Federal Energy Regulatory Commission
Division of Dam Safety and Inspections
100 First Street, Suite 2300
San Francisco, CA 94105
RE: DeSabla-Centerville Hydroelectric Project, FERC No. 803-CA
2019 Dam Safety Inspection Follow Up Actions
Response to FERC Comments
Dear Mr. Blackett:
This letter responds to comments from the Federal Energy Regulatory Commission
(FERC) regarding Pacific plans to address action
items from the 2019 annual FERC inspection of DeSabla-Centerville Hydroelectric
Project, FERC No. 803. FERC identified action items from the inspection in a letter to
PG&E, dated October 15, 2019, and PG&E provided its responses to the action items in a
letter to FERC, dated May 29, 2020.
In a letter to PG&E, dated January 14, 2021, FERC provided three comments on
plans to address action items from the inspection. For reference, Comments 1 and 3 are
responses (in italics). No response to Comment 2 was
required.
Comment 1: In view of the high-downstream hazard potential classification, historical
seepage, observed spillway damage and deficiencies, and uncertain foundation
conditions at Round Valley Dam, we continue to encourage PG&E to consider installing
survey monuments at the dam and monitor for horizontal and vertical movement, as
recommended in our October 15, 2019 inspection follow-up letter. Accordingly, please
provide a plan and schedule for installing survey monuments at the dam to monitor for
horizontal and vertical movement (settlement).
In the summer of 2021, PG&E will perform a site reconnaissance to identify potential
locations for survey monuments and control points to support monitoring of Round
Valley Dam for potential horizontal and vertical movement. By October 31, 2021, PG&E
will develop and submit to FERC a plan and schedule for installing the monuments.
Mr. Frank L. Blackett, P.E., Regional Engineer
March 2, 2021
Page 2
Comment 3:
and schedule for repairing the damaged concrete at Hendricks Head Dam that was
observed during the 2019 FERC annual dam inspection by December 1, 2020.
However, as of the date of this letter, we have not yet received this plan and schedule,
and thus is now overdue. Please provide an updated plan and schedule for repairing
the damaged concrete at Hendricks Head Dam.
In a letter to FERC, dated January 7, 2021, PG&E requested an extension of time, to
April 30, 2021, to submit its seepage repair plan for Hendricks Head Dam. FERC
accepted the request on February 10, 2021.
PG&E plans to perform the seepage repairs in the summer of 2021. As stated in
PG&E, PG&E will evaluate the condition of the concrete
as part of the seepage repair work and submit the results of the evaluation to FERC,
along with a plan and schedule for further actions, if necessary, within 45 days after the
seepage repair work is complete. Based on the current repair schedule, PG&E expects
to submit the results of the concrete evaluation to FERC no later than November 30,
2021.
Should you have any technical dam safety engineer,
Kaitlyn Thatcher, at (707) 342-7885. For general questions, please contact PG&
coordinator, Mrs. Jamie Visinoni, at (530) 215-6676.
Sincerely,
Dave Ritzman, P.E., G.E.
Chief Dam Safety Engineer