HomeMy WebLinkAbout11.20.25 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; 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: Environmental and Recreational Compliance Report submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.
Date:Thursday, November 20, 2025 8:06:13 AM
Please see Board Correspondence -
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Sent: Thursday, November 20, 2025 5:55 AM
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 11/20/2025, 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 Final Water Quality Monitoring Report and data re the 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=20251120-
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Power Generation
300 Lakeside Drive
Oakland, CA 94612
Mailing Address:
P.O. Box 28209
Oakland, CA 94604
November 19, 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
Final Water Quality Monitoring Data
Dear Secretary Reese:
This letter presents the final water quality monitoring report 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,
June 17, 2025, and July 10, 2025, respectively.
On June 13, 2025, PG&E submitted a formal request to discontinue water quality monitoring. On
July 22, 2025, the CVRWQCB requested supplemental documentation. PG&E provided this
documentation on September 15, 2025. Upon review of the submitted information and site
conditions, CVRWQCB approved PG&E’s request on November 4, 2025, concluding that the
potential for further sediment input from the breach site was low.
The consultation history is provided as (Enclosure 1).
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
Enclosure:
1. Consultation Documentation
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
ENCLOSURE 1
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
From: Behnke, Debbie@Waterboards <Debbie.Behnke@Waterboards.ca.gov>
Sent: Tuesday, November 4, 2025 9:10 AM
To: Walther, Janet <janet.walther@pge.com>; Brunswick, Betsy <betsy.brunswick@pge.com>;
Cheslak, Edward <efc3@pge.com>
Cc: Pulupa, Patrick@Waterboards <Patrick.Pulupa@waterboards.ca.gov>; Coster,
Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>; Rose, David@Waterboards
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Subject: Approval of Request to Terminate WQ Monitoring_Butte Creek
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Hello,
Please find the attached document dated 11/4/2025. A hard copy was sent to the
addressees separately. Should those receiving this correspondence have any
questions, please contact Lynn Coster at Lynn.Coster@waterboards.ca.gov or (530)
224-2437.
Thank you,
Debbie Behnke
Seasonal Clerk
R5 CENTRAL VALLEY - REDDING
R5 Stormwater, WQ Certs, ILRP, Watershed Permitting & Enf
Email: Debbie.Behnke@Waterboards.ca.gov
Phone: +1 (530) 224-4243
Regional Water Quality Control Boards
364 Knollcrest Drive, Suite 205, Redding CA 96002
Website: www.waterboards.ca.gov
Follow: X | YouTube | Facebook | LinkedIn
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Central Valley Regional Water Quality Control Board
4 November 2025
Janet Walther
Sr. Manager, Hydro Licensing & Compliance
Pacific Gas and Electric Company
12840 Bill Clark Way
Auburn, CA 95602
Betsy Brunswick
CERTIFIED MAIL:
9589 0710 5270 1157 4137 02
Sr. Manager, Environmental Management
Pacific Gas and Electric Company
300 Lakeside Drive
Oakland, CA 94612
Edward Cheslak
CERTIFIED MAIL:
9589 0710 5270 1157 4137 19
Environmental Management, Power Generation
Pacific Gas and Electric Company
300 Lakeside Drive
Oakland, CA 94612
CERTIFIED MAIL:
9589 0710 5270 1157 4066 29
APPROVAL OF REQUEST TO TERMINATE BUTTE CANAL WATER QUALITY
MONITORING ASSOCIATED WITH 1 SEPTEMBER 2023 WATER CODE SECTION
13267 ORDER (AS AMENDED 4 JANUARY 2024 AND 27 JUNE 2024), PACIFIC GAS
AND ELECTRIC COMPANY, AUGUST 2023 BUTTE CANAL BREACH, BUTTE
COUNTY
On 13 June 2025, the Central Valley Regional Water Quality Control Board (Central
Valley Water Board) received a request from Pacific Gas and Electric Company (PG&E)
to discontinue water quality monitoring and reporting mandated by the
1 September 2023 Notice of Violation and Water Code Section 13267 Order (13267
Order) associated with the August 2023 Butte Canal Breach and the subsequent
4 January 2024 and 27 June 2024 amendments to the 13267 Order.
On 22 July 2025, the Central Valley Water Board responded to PG&E and requested
supplemental information to further assess whether seasonal turbidity increases in Butte
Creek were due to sediment input from the remaining debris berm within the stream
channel and/or the upslope debris flow channel at the Butte Canal Breach site (Site).
Continuous monitoring data showed that turbidity increased at the Forks of Butte
Recreation Area monitoring location (downstream of the Site) during and following storm
events, compared to the upstream baseline turbidity at Above Butte Head Dam.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
PG&E 2 4 November 2025
Summary of Photo Documentation
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
PG&E 3 4 November 2025
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
From:Williamshen, Brian
To:Coster, Lynn@Waterboards; Snyder, Clint@Waterboards
Cc:Hillaire, Sam; Cheslak, Edward; Brunswick, Betsy; Walther, Janet; Salve, Rohit; Ramirez-Doble, Sky; Young,
Megan; Ognisty, Kim (Law)
Subject:RE: Butte Creek and Armored Rock Crossing Photograph Report
Date:Friday, September 26, 2025 1:13:42 PM
Attachments:image001.png
Classification: Public
Hi Lynn,
Thank you for your response. PG&E will continue monitoring turbidity and temperature at
Lower Centerville Diversion Dam and Centerville powerhouse and will await the Central
Valley Water Board’s decision on whether monitoring equipment will be reinstalled at
the Above Butte Head Dam and Forks of Butte sites.
Regards,
Brian Williamshen, Ph.D.
Senior Water Quality Scientist
PG&E Environmental Management – Generation
Phone: 530-201-8895
From: Coster, Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>
Sent: Thursday, September 25, 2025 2:27 PM
To: Williamshen, Brian <BOW2@pge.com>; Snyder, Clint@Waterboards
<Clint.Snyder@waterboards.ca.gov>
Cc: Hillaire, Sam <SMH3@pge.com>; Cheslak, Edward <EFC3@pge.com>; Brunswick, Betsy
<BMB7@pge.com>; Walther, Janet <JMW3@pge.com>; Salve, Rohit <ROSK@pge.com>; Ramirez-
Doble, Sky <S9RV@pge.com>; Young, Megan <MRY2@pge.com>; Ognisty, Kim (Law)
<KXOV@pge.com>
Subject: RE: Butte Creek and Armored Rock Crossing Photograph Report
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Hi Brian,
Thank you for the inquiry on 25 September 2025 regarding PG&E’s Request to Terminate
Butte Canal Water Quality Monitoring. On 15 September 2025, the Central Valley Water
Board received a photograph report of Butte Creek and the armored rock crossings
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Caution: External Email. Use caution when clicking links or opening attachments. When in doubt, contact DIT or
use the Phish Alert Button.
below Butte Canal, as requested by the Central Valley Water Board; review of the report
is pending. In the interim, the Central Valley Water Board approves suspension of
continuous monitoring for turbidity and temperature at Above Butte Head Dam
(background reference location) and Forks of Butte Recreation Area until the Central
Valley Water Board issues a decision whether monitoring is required to resume or if
monitoring under the 13267 Order may be terminated. The suspension is contingent on
ongoing continuous monitoring for turbidity and temperature at Lower Centerville
Diversion Dam and Centerville Powerhouse (as part of PG&E’s long-term monitoring
program for the watershed) for at least the period of suspension of monitoring at the
other two locations. Please contact me if you have questions.
Respectfully,
Lynn Coster
Senior Environmental Scientist (Supervisory)
R5 CENTRAL VALLEY - REDDING
R5 Stormwater, WQ Certs, ILRP, Watershed Permitting & Enf
Email: Lynn.Coster@Waterboards.ca.gov
Phone: +1 (530) 224-2437
Central Valley Regional Water Quality Control Board
364 Knollcrest Drive, Suite 205, Redding CA 96002
Website: www.waterboards.ca.gov
From: Williamshen, Brian <BOW2@pge.com>
Sent: Thursday, September 25, 2025 10:30 AM
To: Coster, Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>
Cc: Hillaire, Sam <SMH3@pge.com>; Cheslak, Edward <EFC3@pge.com>; Brunswick, Betsy
<BMB7@pge.com>; Walther, Janet <JMW3@pge.com>; Salve, Rohit <ROSK@pge.com>; Ramirez-
Doble, Sky <S9RV@pge.com>; Young, Megan <MRY2@pge.com>; Ognisty, Kim (Law)
<KXOV@pge.com>
Subject: RE: Butte Creek and Armored Rock Crossing Photograph Report
Classification: Public
Hello Lynn,
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
I am following up on the photo report I sent on 9/15. Are there any updates to PG&E’s
Request to Terminate Butte Canal Water Quality Monitoring given the provided
photographs?
In CVRWQCB’s Response to Request to Terminate Butte Canal Water Quality
Monitoring, the following language was provided,
“If photo documentation is not provided on or before 15 September 2025, continuous
monitoring for turbidity and temperature at Above Butte Head Dam (background
reference location) and Forks of Butte Recreation Area is required to resume on or
before 1 October 2025 with reporting required biweekly (i.e., every two weeks) to the
Central Valley Water Board.”
I am wondering if PG&E should plan to continue turbidity monitoring at all four locations
on October 1.
Thank you,
Brian Williamshen, Ph.D.
Senior Water Quality Scientist
PG&E Environmental Management – Generation
Phone: 530-201-8895
From: Williamshen, Brian
Sent: Monday, September 15, 2025 10:06 AM
To: Coster, Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>
Cc: Hillaire, Sam <SMH3@pge.com>; Cheslak, Edward <EFC3@pge.com>; Brunswick, Betsy
<BMB7@pge.com>; Walther, Janet <JMW3@pge.com>; Salve, Rohit <ROSK@pge.com>; Ramirez-
Doble, Sky <S9RV@pge.com>; Young, Megan <MRY2@pge.com>; Ognisty, Kim (Law)
<KXOV@pge.com>
Subject: Butte Creek and Armored Rock Crossing Photograph Report
Good morning, Lynn –
Please find the attached report including photographs of Butte Creek and the armored
rock crossings below Butte Canal as requested in the Central Valley Regional Water
Quality Control Board’s July 22, 2025, Response to Request to Terminate Butte Canal
Water Quality Monitoring Associated With 1 September 2023 Water Code Section 13267
Order (as Amended 4 January 2024 and 27 June 2024), Pacific Gas and Electric
Company, August 2023 Butte Canal Breach, Butte County.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Please contact me if you have any questions.
Thank you,
Brian Williamshen, Ph.D.
Senior Water Quality Scientist
PG&E Environmental Management – Generation
Phone: 530-201-8895
You can read about PG&E’s data privacy practices at PGE.com/privacy.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 1 of 14
On August 1 8 and 21, 2025, PG&E personnel visited several locations associated with the
2023 Butte Canal slide event (event) to photograph current conditions as requested by the
Central Valley Regional Water Quality Control Board in the Response to Request to
Terminate Butte Canal Water Quality Monitoring Associated with 1 September 2023 Water
Code Section 13267 Order (dated July 22, 2025).
On August 18 , PG&E personnel hiked to the north bank of Butte Creek across from the 2023
debris fan site (site) and took photos across the creek and from upstream and downstream
angles. The water in Butte Creek was clear and no evidence remained of fine sediment
from the 2023 event.
On August 21, PG&E personnel visited the three armored rock crossings (crossings) that
were installed below the canal following the 2023 event. At each crossing, photos were
taken from the road on both sides of the crossing, a photo looking upslope from the
crossing, and a photo looking downslope from the crossing . No evidence of new erosion at
any of the rock crossings was present. On August 21 a drone was flown over the creek and
crossings to get aerial images – photos of the site, and the two lower rock crossings are
included. A tree obscured the overhead view of the up per rock crossing, so no image was
captured from above at this location .
In photographs from Photo Points 1 through 5, only cobble and bedrock are visible. No fine
red sediment, which was present following the 2023 event, remains in the creek channel at
the site. Re-establishment of riparian vegetation on the north bank of Butte Creek is also
evident. In photographs from Photo Points 6 through 1 4 , clean rocks and stable slopes are
visible at each crossing . No evidence of new erosion above or below each of the crossings
is present.
Date: September 15, 2025
To: Clint Snyder, Assistant Executive Office r, Central Valley Regional Water Board
Lynn Coster, Sr. Environmental Scientist, Central Valley Regional Water Board
From: Janet Walther, Director, Hydro Licensing & Compliance
Betsy Brunswick, Sr. Manager, Environmental Management
Edward Cheslak, Manager, Environmental Management – Generation
Subject: Photograph Report for Butte Canal Water Quality Monitoring, Request to
Terminate Butte Canal Water Quality Monitoring Associated with 1 September
2023 Water Code Section 13267 Order
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 2 of 14
Map of photo points (PP; yellow dots) and approximate erosion path (orange line).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 3 of 14
Photo Point 1 – 8/18/2025 – Looking south at site from elevated point on north bank of Butte
Creek.
Photo Point 2 – 8/18/2025 – Looking upstream on north bank of Butte Creek from
downstream of site on water’s edge.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 4 of 14
Photo Point 3 – 8/18/2025 – Looking downstream on north bank of Butte Creek from
upstream of site on water’s edge.
Photo Point 4 – 8/18/2025 – Looking south at site from water’s edge on north bank of Butte
Creek
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 5 of 14
Photo Point 5 – 8/21/2025 – High a erial view of site.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 6 of 14
Photo Point 5 – 8/21/2025 – Aerial view of creek at site (taken by drone).
Photo Point 5 – 8/21/2025 – Zoom on site from above (taken by drone).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 7 of 14
Photo Point 6 – 8/21/2025 – Lower crossing from east side (facing west).
Photo Point 7 – 8/21/2025 – Lower crossing from west side (facing east).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 8 of 14
Photo Point 8 – 8/21/2025 – Lower crossing looking uphill (south).
Photo Point 8 – 8/21/2025 – Lower crossing looking downhill (north).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 9 of 14
Photo Point 8 – 8/21/2025 – Lower crossing looking down from above (taken by drone).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 10 of 14
Photo Point 9 – 8/21/2025 – Middle crossing from east side (facing west).
Photo Point 10 – 8/21/2025 – Middle rock crossing from west side (facing east).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 11 of 14
Photo Point 11 – 8/21/2025 – Middle crossing looking uphill (south).
Photo Point 11 – 8/21/2025 – Middle crossing looking downhill (north).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 12 of 14
Photo Point 11 – 8/21/2025 – Middle crossing looking down from directly above (taken by
drone).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 13 of 14
Photo Point 12 – 8/21/2025 – Upper crossing from east side (facing west).
Photo Point 13 – 8/21/2025 – Upper crossing from west side (facing east).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Page 14 of 14
Photo Point 14 – 8/21/2025 – Upper crossing looking uphill (south).
Photo Point 14 – 8/21/2025 – Upper rock crossing looking downhill (north).
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
From:Hillaire, Sam
To:Coster, Lynn@Waterboards
Cc:Cheslak, Edward; Brunswick, Betsy; Williamshen, Brian; Salve, Rohit; Walther, Janet; Young, Megan; Ramirez-
Doble, Sky; Ognisty, Kim (Law)
Subject:RE: REQUEST DISCONTINUATION OF MONITORING AT TWO SITES - Amended Section 13267 Order
Date:Friday, June 13, 2025 1:49:14 PM
Thanks so much Lynn.
Looking forward to your response.
Take care-
Sam
From: Coster, Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>
Sent: Friday, June 13, 2025 1:44 PM
To: Hillaire, Sam <SMH3@pge.com>
Cc: Cheslak, Edward <EFC3@pge.com>; Brunswick, Betsy <BMB7@pge.com>; Williamshen, Brian
<BOW2@pge.com>; Salve, Rohit <ROSK@pge.com>; Walther, Janet <JMW3@pge.com>; Young,
Megan <MRY2@pge.com>; Ramirez-Doble, Sky <S9RV@pge.com>; Ognisty, Kim (Law)
<KXOV@pge.com>
Subject: RE: REQUEST DISCONTINUATION OF MONITORING AT TWO SITES - Amended Section 13267
Order
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Hi Sam,
On 13 June 2025, the Central Valley Water Board received PG&E’s request for discontinuation
of water quality monitoring and reporting associated with the Butte Canal Breach and as
required by the amended 13267 Order (issued 20 December 2023) and subsequent Partial
Approval of Request to Terminate Butte Canal Water Quality Monitoring issued on 27 June
2024.
The Central Valley Water Board will review the request and will contact you if additional
information is required.
Thank you,
Lynn Coster
Senior Environmental Scientist
Storm Water / Water Quality Certifications / Irrigated Lands
Central Valley Regional Water Quality Control Board
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Caution: External Email. Use caution when clicking links or opening attachments. When in doubt, contact DIT or
use the Phish Alert Button.
From: Hillaire, Sam <SMH3@pge.com>
Sent: Friday, June 13, 2025 12:48 PM
To: Coster, Lynn@Waterboards <Lynn.Coster@Waterboards.ca.gov>
Cc: Cheslak, Edward <EFC3@pge.com>; Brunswick, Betsy <BMB7@pge.com>; Williamshen, Brian
<BOW2@pge.com>; Salve, Rohit <ROSK@pge.com>; Walther, Janet <JMW3@pge.com>; Young,
Megan <MRY2@pge.com>; Ramirez-Doble, Sky <S9RV@pge.com>; Ognisty, Kim (Law)
<KXOV@pge.com>
Subject: REQUEST DISCONTINUATION OF MONITORING AT TWO SITES - Amended Section 13267
Order
Importance: High
Hello Lynn –
Pacific Gas and Electric Company (PG&E) is requesting discontinuation of water quality
monitoring and reporting associated with the order
received on December 20, 2023, amending the September 1, 2023, water code section
13267 order from the Central Valley Regional Water
Quality Control Board (CVRWQCB). The order is related to the Butte Creek Canal breach
and was modified by the Partial Approval of Request
to Terminate Butte Canal Water Quality Monitoring issued on June 27, 2024.
The current requirement is for PG&E to continuously monitor turbidity and water
temperature at four locations:
1) Above Butte Head Dam,
2)Forks of Butte Recreation Area,
3) Lower Centerville Diversion Dam, and
4) Centerville Powerhouse.
Monitoring was temporarily suspended at two sites - Above Butte Head Dam and Forks
of Butte Recreation Area - between June 27, 2024,
and October 1, 2024, with the partial approval from CVRWQB of PG&E’s May 23, 2024,
Request to Terminate Butte Canal Water Quality
Monitoring. PG&E requests to indefinitely suspend turbidity and water temperature
monitoring at these two sites.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
PG&E intends to continue ongoing turbidity and temperature monitoring at Lower
Centerville Diversion Dam and Centerville Powerhouse,
as those locations are part of our long-term monitoring program. The long-term
monitoring program has provided data on the seasonal
variability of turbidity in the watershed.
Since issuance of the Butte Creek Canal breach orders and following the Partial
Approval to Terminate Monitoring, PG&E has continued to
meet all monitoring requirements and has reported findings consistent with orders from
the CVRWQCB. The monitoring, as documented in
the reports, has conclusively shown that during the 2024-2025 water year (October 1,
2024 - September 30, 2025) that turbidity measured
downstream and upstream of the Butte Creek Canal event are similar, indicating that
sediment originating from the canal breach is not contributing
to any increases in turbidity. The small differences in turbidity at sites moving from
upstream to downstream can be attributed to sediment
inputs from tributaries (e.g., West Branch Butte Creek) and bank erosion during periods
of high flow. Additionally, transect surveys of pools in 2024
did not find any red sediment, and analysis of aerial imagery showed a reduction in fine
red sediment between 2023 and 2024, indicating that there
was not input of sediment originating from the canal breach (see attached file - Appendix
A).
Since the completion of sediment removal in Fall 2023, the region has had two years of
above average rainfall, including many storm events
and several atmospheric rivers. This precipitation has continued driving sediment
transport in the entire Butte Creek watershed. The data have
shown that Butte Creek turbidity has returned to natural conditions for the watershed.
Finally, the rainfall season for 2024-2025 is now ending,
and seasonal sediment transport in the watershed is significantly diminishing.
Approval of this request by the CVRWQCB would result in the removal of the Above Butte
Head Dam and Forks of Butte Recreation Area turbidity
monitoring sites. The turbidity and temperature monitoring at Lower Centerville
Diversion Dam and Centerville Powerhouse will continue, as those
locations are part of PG&E’s long-term monitoring program. PG&E will share those data
with the CVRWQCB on a monthly basis per our existing site
management protocols, as was done prior to the issuance of the 2023 order.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Thank you for your consideration –
Sincerely,
Brian Williamshen
Senior Water Quality Scientist
PG&E Environmental Management – Generation
Phone: 530-201-8895
Sam Hillaire,
Sr. Land Planner
PG&E Environmental Management – Generation
Phone: 530 513-3404
You can read about PG&E’s data privacy practices at PGE.com/privacy.
Document Accession #: 20251120-5033 Filed Date: 11/20/2025
Document Content(s)
PGE20251119_803_DeSabla_Final_WQReporting.pdf.............................1
Document Accession #: 20251120-5033 Filed Date: 11/20/2025