HomeMy WebLinkAbout03.29.21 BOS 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:BOS Correspondence: FW: Supplemental/Additional Information submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.
Date:Monday, March 29, 2021 8:47:09 AM
Good Morning,
Please see BOS Correspondence below from FERC.
Shaina Paulsen
Administrative Assistant, Senior
Butte County Administration
25 County Center Drive, Suite 200
Oroville, CA 95969
T: 530.552.3304 | F: 530.538.7120
-----Original Message-----
From: 'FERC eSubscription' <eSubscription@ferc.gov>
Sent: Monday, March 29, 2021 6:05 AM
Subject: Supplemental/Additional Information submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.
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On 3/26/2021, 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: Toadtown Canal Supplemental Information for Toadtown Canal Undermining Repair Project of Pacific Gas and Electric Company for
DeSabla-Centerville Hydroelectric Project under P-803
To view the document for this Filing, click here https://urldefense.com/v3/__https://elibrary.ferc.gov/eLibrary/filelist?accession_num=20210326-
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Power Generation
245 Market Street
San Francisco, CA 94105
Mailing Address:
Mail Code N11D
P.O. Box 770000
San Francisco, CA 94177
March 26, 2021
Via Electronic Submittal (E-file)
Mr. Frank L. Blackett, P.E., Regional Engineer
Federal Energy Regulatory Commission
Division of Dam Safety and Inspections
San Francisco Regional Office
100 First Street, Suite 2300
San Francisco, CA 94105-3084
RE: DeSabla-Centerville Hydroelectric Project, FERC No. 803-CA
Toadtown Canal Supplemental Information for Toadtown Canal
Undermining Repair Project
ENCLOSURE CONTAINS CUI//CEII - DO NOT RELEASE
Dear Mr. Blackett:
This letter presents Pacific Gas and Electric Company’s (PG&E’s) responses to Federal
Regulatory Commission (FERC) comments regarding the proposed project to repair
undermining on the Toadtown Canal, part of PG&E’s DeSabla Centerville Hydroelectric
Project, FERC No. 803. FERC’s comments were provided in a letter to PG&E, dated
March 24, 2021.
For reference, FERC’scomments have been included below, followed by PG&E’s
responses (in italics).
Comment 1: Design drawings were included in PG&E’s submittal, and it is unclear
whether they are the final drawings since they are simply noted as “Revision 1”. Only final
design drawings that are clearly marked “Approved for Construction,” “100-Percent
Complete,” or similarly to indicate that they are the final drawings to be used for
construction should be submitted with your construction packages. Please submit the final
design drawings for this project, for our information. Future submittals that do not contain
drawings clearly indicated to be the final design will be returned and rejected.
The drawings included in PG&E’s initial submittal were the final, approved-for-construction
(AFC) drawings for the project. The drawing title block has been revised to state the AFC
status. The updated AFC drawings are included as Enclosure 1of this letter.
Mr. Frank L. Blackett, P.E., Regional Engineer
March 26, 2021
Page 2
Comment 2:PG&E’s submittal indicates that the subgrade is to be compacted to a
minimum of 95-percent relative density based on the Modified Proctor test (ASTM D 1557).
However, compaction specifications are typically based on relative compaction, which is
different parameter from relative density. If 95-percent relative density is indeed intended
as the compaction standard rather than relative compaction, PG&E should be aware that
this is a very difficult compaction standard to achieve. Please clarify the intended
compaction specification and correct the drawings and supporting text as needed.
PG&E has removed testing standard ASTM D 1557 from Appendix D, Section 7, of the
Quality Control Inspection Program (QCIP). All concrete will be installed on bedrock and
not on imported fill. The revised QCIP is included as Enclosure 2.
If you have any technical questions concerning this matter, please contact PG&E’s dam
safety engineer, Ms. Kaitlyn Thatcher, at (707) 342-7885 or PG&E’s senior project
engineer, Mr. Jonathan Edwards, at (530) 896-4400. For general comments or questions,
please contact PG&E’s senior license coordinator, Ms. Jamie Visinoni, at (530) 215-6676.
Sincerely,
Teri Smyly
Manager, FERC Compliance
Enclosures: CUI//CEII –DO NOT RELEASE
1. Toadtown Canal Undermining Repair Project, Approved for Construction Drawings and
Specifications, prepared by PACE Engineering, dated March 20, 2020
2. Quality Control and Inspection Program for Toadtown Canal Mitigate Undermining,
prepared by PG&E, dated November 30, 2020