HomeMy WebLinkAbout07.10.25 Board Correspondence FW_ Environmental and Recreational Compliance Report submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.From: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; Little, Melissa; Pickett, Andy; Ritter, Tami; Stephens, Brad J.; Sweeney,
Kathleen; Teeter, Doug
Cc:Loeser, Kamie; Nuzum, Danielle
Subject:Board Correspondence FW: Environmental and Recreational Compliance Report submitted in FERC P-803-000 by
Pacific Gas and Electric Company,et al.
Date:Thursday, July 10, 2025 3:09:20 PM
Board Correspondence
-----Original Message-----
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Sent: Thursday, July 10, 2025 12:55 PM
Subject: Environmental and Recreational Compliance Report submitted in FERC P-803-000 by Pacific Gas and
Electric Company,et al.
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On 7/10/2025, the following Filing was submitted to the Federal Energy Regulatory Commission (FERC),
Washington D.C.:
Filer: Pacific Gas and Electric Company
PG&E Corporation (as Agent)
Docket(s): P-803-000
Lead Applicant: Pacific Gas and Electric Company
Filing Type: Environmental and Recreational Compliance Report
Description: Pacific Gas and Electric Company submits Water Quality Monitoring Reports and data for June 2025
re the DeSabla-Centerville Hydroelectric Project under P-803.
To view the document for this Filing, click here
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Power Generation
300 Lakeside Drive
Oakland, CA 94612
Mailing Address:
P.O. Box 28209
Oakland, CA 94604
July 10, 2025
Via Electronic Submittal (E-File)
Debbie-Anne Reese, Secretary
Federal Energy Regulatory Commission
Division of Hydropower Administration and Compliance
888 First Street, NE
Washington, D.C. 20426
RE: DeSabla-Centerville Hydroelectric Project, FERC No. 803-CA
June 2025: Water Quality Monitoring Data
Dear Secretary Reese:
This letter presents the June 2025 water quality monitoring reports and data for Pacific Gas
and Electric Company’s (PG&E) DeSabla-Centerville Hydroelectric Project, Federal Energy
Regulatory Commission (FERC) No. 803. In response to letters from the Central Valley
Regional Water Quality Control Board (CVRWQB) dated September 1, 2023, which was
amended on January 4, 2024, and June 27, 2024, and from the California Department of Fish
and Wildlife (CDFW) on September 15, 2024, PG&E has provided CDFW and CVRWQB with
the requested monitoring reports and data. PG&E provided FERC the water quality
monitoring reports and data from February 2024 through February 2025 on December 31,
2024, February 7, 2025, March 19, 2025, April 22, 2025, and June 17, 2025, respectively.
PG&E is enclosing the June 2025 reports and data for the record.
The June 2025 water quality monitoring reports and data are enclosed with this submittal
(Enclosures 1 and 2, respectively).
If you have questions or comments regarding this matter, please contact Sky Ramirez-Doble,
license coordinator for PG&E, at (530) 250-7002.
Sincerely,
Megan Young
Hydro License Project Manager
Enclosures:
1. Water Quality Monitoring Reports from June 2025
2. Water Quality Monitoring Data from June 2025
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
Public
ENCLOSURE 1
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
1
Butte Creek Watershed Monitoring
Biweekly Water Quality Data Report
June 16, 2025
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
2
DATE: June 13, 2025
TO: Lynn Coster, Central Valley Regional Water Quality Control Board
FROM: Brian Williamshen, Sr. Water Quality Scientist, Pacific Gas and Electric Company
SUBJECT: Biweekly Water Quality Monitoring Report
This biweekly report provides turbidity data collected as a requirement in the Notice of Violation
(NOV) for unpermitted discharge issued by the Central Valley Regional Water Quality Control Board
(CVRWQCB) to PG&E on September 1, 2023, and then amended on January 4, 2024 , with guidance
from a June 27, 2024, letter. PG&E is currently directed to continuously monitor turbidity and water
temperature at four locations i.e., Above Butte Head Dam, Forks of Butte Recreation Area, Lower
Centerville Diversion Dam , and Centerville Powerhouse (Figure 1).
Reporting is required biweekly (i.e., every two weeks) to the CVRWQCB. Ongoing continuous
monitoring data for turbidity and water temperature collected at Lower Centerville Diversion Dam
and Centerville Powerhouse is required to be reported monthly to the CVRWQCB.
This biweekly report includes data (turbidity and water temperature) collected from the four water
quality monitoring locations (Figure 2). All data starts on Oct 1, 2024, as a new water year.
Note: a column labeled ‘DFlag’ has been added to the data worksheet which calls out data that has
been flagged. Also added is the ‘DFLAGLegend’ worksheet with provides an explanation of the
flags.
Attachments to the report include:
Appendix 1: Data collected from the four monitoring stations.
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
3
Figure 1. Location of the water quality and turbidity monitoring sites and Butte Canal Slide.
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
4
Figure 2. Hourly Average Turbidity measured at the four monitoring stations, Forks of Butte, Lower Centerville diversion
Dam Centerville Powerhouse and Butte Head Dam.
0
50
100
150
200
250
300
350
400
10/1/24 0:00 11/20/24 0:00 1/9/25 0:00 2/28/25 0:00 4/19/25 0:00 6/8/25 0:00
Tu
r
b
i
d
i
t
y
(
N
T
U
)
Butte Creek Turbidity Monitoring -Hourly Average Data
Butte Head Dam Forks of Butte LCDD Centerville PH
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
1
Butte Creek Watershed Monitoring
Biweekly Water Quality Data Report
June 26, 2025
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
2
DATE: June 26, 2025
TO: Lynn Coster, Central Valley Regional Water Quality Control Board
FROM: Brian Williamshen, Sr. Water Quality Scientist, Pacific Gas and Electric Company
SUBJECT: Biweekly Water Quality Monitoring Report
This biweekly report provides turbidity data collected as a requirement in the Notice of Violation
(NOV) for unpermitted discharge issued by the Central Valley Regional Water Quality Control Board
(CVRWQCB) to PG&E on September 1, 2023, and then amended on January 4, 2024 , with guidance
from a June 27, 2024, letter. PG&E is currently directed to continuously monitor turbidity and water
temperature at four locations i.e., Above Butte Head Dam, Forks of Butte Recreation Area, Lower
Centerville Diversion Dam , and Centerville Powerhouse (Figure 1).
Reporting is required biweekly (i.e., every two weeks) to the CVRWQCB. Ongoing continuous
monitoring data for turbidity and water temperature collected at Lower Centerville Diversion Dam
and Centerville Powerhouse is required to be reported monthly to the CVRWQCB.
This biweekly report includes data (turbidity and water temperature) collected from the four water
quality monitoring locations (Figure 2). All data starts on Oct 1 , 2024, as a new water year.
Note: a column labeled ‘DFlag’ has been added to the data worksheet which calls out data that has
been flagged. Also added is the ‘DFLAGLegend’ worksheet with provides an explanation of the
flags.
Attachments to the report include:
Appendix 1: Data collected from the four monitoring stations .
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
3
Figure 1. Location of the water quality and turbidity monitoring sites and Butte Canal Slide.
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
4
Figure 2. Hourly Average Turbidity measured at the four monitoring stations, Forks of Butte, Lower Centerville diversion
Dam Centerville Powerhouse and Butte Head Dam.
0
50
100
150
200
250
300
350
400
10/1/24 0:00 11/20/24 0:00 1/9/25 0:00 2/28/25 0:00 4/19/25 0:00 6/8/25 0:00
Tu
r
b
i
d
i
t
y
(
N
T
U
)
Butte Creek Turbidity Monitoring -Hourly Average Data
Butte Head Dam Forks of Butte LCDD Centerville PH
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
File [Appendix 1 Nov Turbidity at 4 monitoring stations_06132025.xlsx] cannot be converted to
PDF. (To download this file in its original format, please use the filename hyperlink from your
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of files, please contact the helpdesk at ferconlinesupport@ferc.gov, or, call 866-208-3676 from
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processed.)
Document Accession #: 20250710-5101 Filed Date: 07/10/2025
File [Appendix 1 Nov Turbidity at 4 monitoring stations_06262025.xlsx] cannot be converted to
PDF. (To download this file in its original format, please use the filename hyperlink from your
search results. If you continue to experience difficulties, or to obtain a PDF generated version
of files, please contact the helpdesk at ferconlinesupport@ferc.gov, or, call 866-208-3676 from
9AM to 5PM EST, weekdays. Please allow at least 48 hours for your helpdesk request to be
processed.)
Document Content(s)
PGE20250710_803_June2025_WQ_Monitoring_Data.pdf...........................1
Appendix 1 Nov Turbidity at 4 monitoring stations_06132025.xlsx .........11
Appendix 1 Nov Turbidity at 4 monitoring stations_06262025.xlsx .........12
Document Accession #: 20250710-5101 Filed Date: 07/10/2025