HomeMy WebLinkAbout3.31.22 Annual Groundwater Status Report (2)
From:Loeser, Kamie
To:BOS
Cc:Pickett, Andy; Hatcher, Casey
Subject:Annual Groundwater Status Report
Date:Thursday, March 31, 2022 7:40:31 PM
Dear Board Members,
I am sending this email on behalf of Assistant Director, Christina Buck. Please see her correspondence below.
Sincerely,
Kamie N. Loeser
Director
Butte County Dept. of Water and Resource Conservation
Dear Board Members,
At the upcoming April 12, 2022 Board meeting I will present the County’s Annual Groundwater Status
Report. Due to its length, I am providing the report to you via the link below in advance of the agenda
coming out. The structure of the report is a brief overview of conditions in all three subbasins (Butte,
Vina, and Wyandotte Creek) followed by each complete annual report developed in compliance with the
Sustainable Groundwater Management Act (SGMA) and submitted for the individual subbasin, as
Attachments A-C.
The complete report with Attachments:
http://www.buttecounty.net/wrcdocs/Reports/GWStatusReports/2021/Annual_GW_Status_Rpt_2021.pdf
On our Department’s webpage the Groundwater Status Report can be downloaded separately from the
Attachments.
https://www.buttecounty.net/waterresourceconservation/Groundwater-Status-Reports/Current-
Groundwater-Status-Report
If you would like a hard copy of the report, please let me know and we will provide one to you.
Thank you,
Christina
Christina R. Buck, Ph.D.
Assistant Director
Dept. of Water and Resource Conservation
Butte County
308 Nelson Avenue
Oroville, CA 95965-3302
Off: 530.552.3593
cbuck@buttecounty.net
Butte County Groundwater Status Report
Attachment A
Butte Subbasin
2021 Water Year Annual Report
2021 Water Year Annual Report
Appendix B
Explanation of Sustainable Management Criteria
Appendix B: Explanation of Sustainable Management Criteria
The Sustainable Groundwater Management Act (SGMA) requires a Groundwater Sustainability Plan
(GSP) to define Sustainable Management Criteria (SMC) for the groundwater subbasin. The SMC offer
guideposts and guardrails for groundwater managers seeking to achieve sustainable groundwater
groundwater in a manner that can be maintained during the planning and implementation horizon
the first 20 years spent working toward achieving sustainable groundwater management and the
following 30 years (and beyond) spent maintaining it (California Water Code §10721).
Undesirable Results are associated with up to six Sustainability Indicators (SI), including groundwater
levels, groundwater storage, water quality, seawater intrusion, land subsidence, and interconnected
surface water. SGMA defines undesirable results as those having significant and unreasonable negative
impacts. Failure to avoid undesirable results on the part of the GSAs may lead to intervention by the
State. Once the sustainability goal and Undesirable Results have been locally identified, projects and
management actions are formulated to achieve the sustainability goal and avoid undesirable results.
ɎɎɎɎɎɎ
SI and associated Undesirable Results, if significant and unreasonable
The terminology for describing SMC is defined as follows:
ƓķĻƭźƩğĬƌĻ wĻƭǒƌƷƭ Significant and unreasonable negative impacts associated with each SI.
aźƓźƒǒƒ ŷƩĻƭŷƚƌķ ΛaΜ Quantitative threshold for each SI used to define the point at which
undesirable results may begin to occur.
aĻğƭǒƩğĬƌĻ hĬƆĻĭƷźǝĻ ΛahΜ Quantitative target that establishes a point above the MT that allows
for a range of active management to prevent undesirable results.
ağƩŭźƓ ƚŅ hƦĻƩğƷźƚƓğƌ CƌĻǣźĬźƌźƷǤ The range of active management between the MT and the MO.
LƓƷĻƩźƒ aźƌĻƭƷƚƓĻƭ ΛLaƭΜ Targets set in increments of five years over the implementation period
of the GSP offering a path to sustainability.
1 | Page
LƌƌǒƭƷƩğƷźƚƓ ƚŅ ĻƩƒƭ
ƭĻķ ŅƚƩ 5ĻƭĭƩźĬźƓŭ {ǒƭƷğźƓğĬƌĻ ağƓğŭĻƒĻƓƷ /ƩźƷĻƩźğ
ƭźƓŭ ƷŷĻ DƩƚǒƓķǞğƷĻƩ
\[ĻǝĻƌ {L
The Figure above illustrates these terms for the groundwater level SI.
SI are intended to be measured and compared against quantifiable SMC throughout a monitoring
framework of Representative Monitoring Site (RMS) wells. Ongoing monitoring of SI can:
Determine compliance with the adopted GSP
Offer a means to evaluate the effectiveness of projects and management actions over time
Allow for course correction and adaptation in five-year updates
Facilitate understanding among diverse stakeholders
Support decision-making on the part of the GSAs into the future
The SMC for the Butte Subbasin is fully explained and defined in Section 4 of the GSP available here:
https://sgma.water.ca.gov/portal/gsp/preview/98
2 | Page
2021 Water Year Annual Report
Appendix C
GSP Annual Reporting Elements Guide
Butte County Groundwater Status Report
Attachment B
Vina Subbasin
2021 Water Year Annual Report
2021 Water Year Annual Report
Appendix B
Explanation of Sustainable Management Criteria
2021 Water Year Annual Report
Appendix C
GSP Annual Reporting Elements Guide
Butte County Groundwater Status Report
Attachment C
Wyandotte Creek Subbasin
2021 Water Year Annual Report
2021 Water Year Annual Report
Appendix B
Explanation of Sustainable Management Criteria
2021 Water Year Annual Report
Appendix C
GSP Annual Reporting Elements Guide