Amended GSP 2025

5-022.01 EASTERN SAN JOAQUIN

Base Information

01/28/2025

02/04/2025

04/20/2025

Central San Joaquin Water Conservation District GSA
Eastside San Joaquin GSA
Lockeford Community Service District GSA
North San Joaquin Water Conservation District GSA
County of San Joaquin GSA - Eastern San Joaquin 1
South Delta Water Agency GSA
City of Stockton GSA
Woodbridge Irrigation District GSA
Central Delta Water Agency GSA
City of Manteca GSA
Linden County Water District GSA
City of Lodi GSA
Oakdale Irrigation District GSA
County of San Joaquin GSA - Eastern San Joaquin 2
South San Joaquin GSA
Stockton East Water District GSA

Fritz Buchman
1810 E. Hazelton Avenue
P.O. Box 1810
Stockton, CA 95201
2094683100
ESJGroundwater@sjgov.org

Notice Date: 07/24/2024

NOI Adopt GSP_24.pdf (573.5kB)
Public Hearing Date: 12/12/2024

All GSAs individually held public hearings where the Amended GSP was adopted. The following are the individual adoption dates for each GSA: Central San Joaquin Water Conservation District (CSJWCD): 1/16/2025; Linden County Water District (LCWD): 1/16/2025; Lockeford Community Services District (LCSD): 12/12/2024; North San Joaquin Water Conservation District (NSJWCD): 12/16/2024; Oakdale Irrigation District (OID): 1/14/2025; San Joaquin County and San Joaquin County No. 2 (combined): 1/14/25; South Delta Water Agency (SDWA): 1/8/25; South San Joaquin Irrigation District (SSJID): 12/18/2024; Stockton East Water District (SEWD): 12/31/2024; Woodbridge Irrigation District (WID): 1/9/2025

SSJID_24-01-W _GSP_PE.pdf (503.6kB)
SJ County_R-25-10_SJ GSA 1 & 2_1-14-2025_ESJ GSP Amendment & Periodic Evaluation_.pdf (135.4kB)
SEWD Resolution No. 24-25-16_GSP.PDF (1.1MB)
WID_Adopted Resolutions 1-9-25_GSP.pdf (878.5kB)
CSJWCD_Resolution 25-2_GSP.pdf (1.1MB)
LCWD Res 25-01 Signed_GSP.pdf (318kB)
Lockeford 2024 ESJ GSP Amendment Res.pdf (2.7MB)
NSJWCD_2024-12_GSP.pdf (205.8kB)
OID Res. 2025-01 ESJ GSP Adoption.pdf (150.1kB)
SDWA Resolution and Cert_GSP.pdf (124.8kB)
File Name GSP Regulation Element(s) Uploaded Date & Time
Title Publication Name Publish Date Author(s) File Name or URL
The relationship between oak tree roots and groundwater in fractured rock as determined by tritium tracing 1964-06-15 Lewis, D.C., Burgy, R.H.
Mineral Land Classification of the Sutter Creek 15-Minute Quadrangle, El Dorado and Amador Counties, California 1983-12-31 Loyd, R.
Late Cenozoic Stratigraphic Units, Northeastern San Joaquin Valley 1981-12-31 Marchand, D., & Allwardt, A.
Test Drilling and Data Collection in the Calaveras County Portion of the Eastern San Joaquin Groundwater Subbasin, California 2012-12-31 Metzger, L., Izbicki, J., & Nawikas, J.
Farmington Groundwater Recharge/Seasonal Habitat Study- Final Report. United States Army Corps of Engineers 2001-08-31 Montgomery Watson Harza (MWH)
Comments of North Delta Water Agency on the Partially Recirculated Bay-Delta Conservation Plan EIR/ElS with New CA WaterFix Sub-Alternatives 2015-10-30 North Delta Water Agency (NDWA)
2014 Eastern San Joaquin Groundwater Basin Groundwater Management Plan 2004-09-30 Northeastern San Joaquin County Groundwater Banking Authority (NSJCGBA)
Eastern San Joaquin Groundwater Basin Groundwater Management Plan 2004-09-30 Northeastern San Joaquin County Groundwater Banking Authority
2015 Agricultural Water Management Plan 2016-03-31 Oakdale Irrigation District (OID)
Agricultural Water Management Plan 2016-03-31 Oakdale Irrigation District (OID)
Sources of high-chloride water and managed aquifer recharge in an alluvial aquifer in California USA 2015-07-03 O'Leary, D. R., Izbicki, J. A., & Metzger, L. F.
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San Joaquin County Flood Control and Water Conservation District Water Management Plan 2001-10-31 San Joaquin County Flood Control and Water Conservation District (SJCFCWCD)
San Joaquin County Flood Control and Water Conservation District CASGEM Monitoring Plan 2006-12-31 San Joaquin County Flood Control and Water Conservation District (SJCFCWCD)
Mokelumne Interregional Sustainability Evaluation (MokeWISE) Program 2015-05-31 San Joaquin Groundwater Basin Authority (San Joaquin GBA)
The Global Biogeography of Roots 2002-08-01 Schenk, H.J., Jackson, R.B.
2015 Urban Water Management Plan 2016-06-30 SEWD
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San Joaquin County General Plan Policy Document 2016-12-31 SJC
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Groundwater Elevation Monitoring Guidelines 2010-12-31 CA DWR
Statewide Crop Mapping 2014-12-31 CA DWR
Best Management Practices for the Sustainable Management of Groundwater Water Budget 2016-12-31 CA DWR
Groundwater Sustainability Agency Frequently Asked Questions 2019-05-10 CA DWR
Draft Monitoring Networks and Identification of Data Gaps Best Management Practice 2016-10-28 CA DWR
Groundwater Sustainability Plan (GSP) Annotated Outline 2016-12-31 CA DWR
Preparation Checklist for GSP Submittal 2016-12-31 CA DWR
SGMA Groundwater Management 2019-07-10 CA DWR
Guidance for Climate Change Data Use During Groundwater Sustainability Plan Development 2018-07-31 CA DWR
SGMA Data Viewer 2019-07-10 CA DWR
Mapping Tools 2019-07-10 CA DWR
Calaveras County, California – Code of Ordinances/Chapter 8.20 Well Construction and Destruction 2008-12-31 Calaveras County Board of Supervisors
2015 Urban Water Management Plan for Calaveras County Water District 2016-06-30 Calaveras County Water District (CCWD)
2015 Urban Water Management Plan Update 2016-06-30 Calaveras County Water District (CCWD)
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2015 Urban Water Management Plan 2016-06-30 California Water Service District, Stockton District (Cal Water)
Maximum rooting depth of vegetation types at the global scale 1996-07-18 Canadell, J., Jackson, R. B., Ehleringer, J. R., Mooney, H. A., Sala, O. E., Schulze, E.-D.
Calaveras County Monitoring Plan Portions of the Eastern San Joaquin Ground Water Subbasin 2012-11-21 CCWD
Woodbridge Ecological Reserve 2019-11-07 CDFW
CDFW Public Access Lands, Web Tool v5.77.14 2019-07-10 CDFW
Waste Discharge Requirements Order No. R5‑2012-0106 2012-12-31 Central Valley Regional Water Quality Control Board (CVRWQCB)
The Water Quality Control Plan (Basin Plan) - Sacramento River Basin and San Joaquin River Basin 2018-05-31 Central Valley Regional Water Quality Control Board (CVRWQCB)
Calaveras County General Plan 2019-11-12 Calaveras County
Water Data Library 2019-07-10 CA DWR
Elk Grove General Plan (Draft) 2019-02-27 City of Elk Grove
Escalon General Plan 2005-06-06 City of Escalon
2030 Galt General Plan 2009-04-30 City of Galt
Lodi General Plan 2010-04-07 City of Lodi
2015 Urban Water Management Plan for City of Lodi 2016-06-30 City of Lodi
Agricultural Water Management Plan 2015-12-31 South San Joaquin Irrigation District (SSJID).
Urban Water Management Plan 2015 Update 2016-06-30 South San Joaquin Irrigation District (SSJID).
CASGEM Monitoring Plan for the Stanislaus County Portion of Eastern San Joaquin Groundwater Subbasin 2016-01-20 Stanislaus County Department of Environmental Resources
Stanislaus County General Plan 2016-08-23 Stanislaus County
Stanislaus County Code, Chapter 9.36 Water Wells 2019-10-31 Stanislaus County
Stanislaus County Code, Chapter 9.37 Groundwater 2019-11-01 Stanislaus County
County Groundwater Ordinance, Well Permit Application Review Process 2018-03-21 Stanislaus County
Municipal Service Review and Sphere of Influence Update for the Rock Creek Water District 2018-06-27 Stanislaus Local Agency Formation Commission (Stanislaus LAFCO)
1,2,3, -Trichloropropane (1,2,3-TCP) 2019-05-02 State Water Resources Control Board (SWRCB)
2015 Agricultural Water Management Plan 2017-07-31 Stockton East Water District (SEWD)
Maximum Contaminant Levels and Regulatory Dates for Drinking Water U.S. EPA vs California 2018-10-31 SWRCB
Irrigation Water Quality Standards and Salinity Management Strategies 2003-04-30 Texas A&M AgriLife Extension
Plant Rooting Depth Database 2019-07-10 The Nature Conservancy
Kriging Water Levels with a Regional-Linear and Point-Logarithmic Drift 2005-12-13 Tonkin, M., & Larson, S.
InSAR land surveying and mapping services in support of the DWR SGMA program 2019-07-10 TRE Altamira
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CropScape - Cropland Data Layer 2019-12-23 United States Department of Agriculture (USDA)
San Joaquin River National Wildlife Refuge 2012-12-21 United States Fish and Wildlife (USFWS)
Soil Agricultural Groundwater Banking Index 2019-07-10 University of California, Davis
EPA’s PFAS Action Plan: A Summary of Key Actions 2019-12-31 US Environmental Protection Agency (USEPA)
National Field Manual for the Collection of Water Quality Data: U.S. Geological Survey Techniques of Water Resources Investigations 2018-06-30 USGS
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Aquapedia: Seawater Intrusion 2019-07-10 Water Education Foundation
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Eastern San Joaquin Water Resources Model (ESJWRM) Final Report 2018-08-31 Woodard & Curran
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Best Management Practices for the Sustainable Management of Groundwater Monitoring Protocols, Standards, and Sites 2016-12-31 CA Department of Water Resources (CA DWR)
Sustainable Management Criteria BMP 2017-11-30 CA Department of Water Resources (CA DWR)
Chronological Reconstructed Sacramento and San Joaquin Valley Water Year Hydrologic Classifications Indices. 2019-07-10 CA Department of Water Resources (CA DWR)
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2015 Urban Water Management Plan 2016-06-30 City of Lodi
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City of Ripon General Plan 2006-09-19 City of Ripon
2015 Urban Water Management Plan Update for City of Ripon 2017-11-30 City of Ripon
2015 Urban Water Management Plan 2017-11-30 City of Ripon
2015 Urban Water Management Plan for City of Stockton 2016-07-31 City of Stockton
2015 Urban Water Management Plan 2016-07-31 City of Stockton
Envision Stockton 2040 General Plan Update 2018-06-30 City of Stockton
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Waste Discharge Requirements Order No. R5-2012-0106 2012-12-31 CVRWQCB
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Eastern San Joaquin Integrated Regional Water Management Plan Update 2014-06-05 Eastern San Joaquin County Groundwater Basin Authority (Eastern San Joaquin County GBA)
Bylaws of the Eastern San Joaquin Groundwater Authority 2017-08-09 Eastern San Joaquin Groundwater Authority (ESJGWA)
2015 Urban Water Management Plan for the City of Lathrop 2017-10-31 EKI Environment & Water
Joint Exercise of Powers Agreement Establishing the Eastern San Joaquin Groundwater Authority 2017-04-11 ESJGWA
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Groundwater Resources of Northern California: An Overview 2001-12-31 Ferriz, H
Groundwater 1979-12-31 Freeze, R., & Cherry, J.
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Contribution of Bedrock Nitrogen to High Nitrate Concentrations in Stream Water 1998-10-22 Holloway, J. M., R. A. Dahlgren, B. Hansen, & W. H. Casey
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Source, Distribution, and Management of Arsenic in Water from Wells, East San Joaquin Ground-Water Subbasin, California 2008-10-31 Izbicki, J., Stamus, C., Metzger, L., Halford, K., Kulp, T., & Benner, G.
Locally Reported Dry Wells 2023-01-01 CA DWR
Data Report for Survey Area 6 Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa Subbasins, and Livermore Valley Groundwater Basin 2023-01-01 CA DWR
DWR Airborne Electromagnetic (AEM) Surveys Data 2023-05-24 CA DWR
Depletions of Interconnected Surface Water: An Introduction 2024-02-01 CA DWR
Best Management Practices for the Sustainable Management of Groundwater; Monitoring Networks and Identification of Data Gaps 2016-12-01 CA DWR
San Joaquin Valley Water Year Hydrologic Classification Index 2024-10-01 California Department of Water Resources (DWR) California Data Exchange Center (CDEC)
GPS Survey of the Sacramento Valley Subsidence Network 2018-12-01 California Department of Water Resources: Natural Resources Agency
Data Browser 2024-07-01 California Spatial Reference Center, Scripps Orbit and Permanent Array Center (SOPAC)
2020 Urban Water Management Plan Update 2021-06-01 Calaveras County Water District (CCWD)
Surveys Manual 2019-12-01 California Department of Transportation
GPS Survey of the Sacramento Valley Subsidence Network 2018-12-01 California Department of Water Resources: Natural Resources Agency
Decision tree for classification of water systems 2021-11-30 California State Water Resources Control Board
2020 Urban Water Management Plan 2021-06-01 California Water Service District, Stockton District (Cal Water)
2020 Urban Water Management Plan 2021-08-01 City of Lodi
Manteca General Plan Update 2023-04-01 City of Manteca
2020 Urban Water Management Plan 2021-06-01 City of Stockton
Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay. Reviews of Geophysics. 50. 1-33. 10.1029/2012RG000397 2012-10-24 Cloern, James & Jassby, Alan
Integrated Water Flow Model Theoretical Documentation (IWFM-2015), Revision 1443. Bay-Delta Office, California Department of Water Resources 2024-04-02 Dogrul, E. and Kadir, T
Integrated Water Flow Model User’s Manual (IWFM-2015), Revision 1443. Bay-Delta Office, California Department of Water Resources 2024-04-03 Dogrul, E. and Kadir, T
Eastern San Joaquin Groundwater Subbasin Groundwater Sustainability Plan 2022-06-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2019 Annual Report 2020-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2020 Annual Report 2021-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2021 Annual Report 2022-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2022 Annual Report 2023-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2023 Annual Report 2024-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Extent of Corcoran Clay modified from Page (1986) for the Central Valley Hydrologic Model (CVHM): U.S. Geological Survey data release 2023-09-15 Faunt, C.C.
2021 Agricultural Water Management Plan 2021-03-01 Oakdale Irrigation District (OID)
San Joaquin County Local Hazard Mitigation Plan 2023-01-01 San Joaquin County (SJC)
East Bay Municipal Utility District comments on the Development of Flow Criteria for Priority Streams 2014-04-16 Setka, Jose D
Eastern San Joaquin Integrated Regional Water Management Plan 2020 Addendum 2021-02-01 SJC
2020 Agricultural Water Management Plan 2021-03-23 South San Joaquin Irrigation District (SSJID).
2020 Urban Water Management Plan Update 2021-06-01 South San Joaquin Irrigation District (SSJID).
Groundwater Ambient Monitoring and Assessment (GAMA) Groundwater Information System 2024-07-01 State Water Resources Control Board (SWRCB)
2020 Urban Water Management Plan 2021-06-01 Stockton East Water District (SEWD)
Plant Rooting Depth Database 2024-07-01 The Nature Conservancy
Statewide Status 2024-07-01 The Nature Conservancy
“InSAR Data Accuracy for California Groundwater Basins: CGPS Data Comparative Analysis.” Siskiyou County - California, Project No.14750-0137 2020-03-23 Towill, Inc.
Locally Reported Dry Wells 2023-01-01 CA DWR
Data Report for Survey Area 6 Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa Subbasins, and Livermore Valley Groundwater Basin 2023-01-01 CA DWR
DWR Airborne Electromagnetic (AEM) Surveys Data 2023-05-24 CA DWR
Depletions of Interconnected Surface Water: An Introduction 2024-02-01 CA DWR
Best Management Practices for the Sustainable Management of Groundwater; Monitoring Networks and Identification of Data Gaps 2016-12-01 CA DWR
San Joaquin Valley Water Year Hydrologic Classification Index 2024-10-01 California Department of Water Resources (DWR) California Data Exchange Center (CDEC)
GPS Survey of the Sacramento Valley Subsidence Network 2018-12-01 California Department of Water Resources: Natural Resources Agency
Data Browser 2024-07-01 California Spatial Reference Center, Scripps Orbit and Permanent Array Center (SOPAC)
2020 Urban Water Management Plan Update 2021-06-01 Calaveras County Water District (CCWD)
Surveys Manual 2019-12-01 California Department of Transportation
GPS Survey of the Sacramento Valley Subsidence Network 2018-12-01 California Department of Water Resources: Natural Resources Agency
Decision tree for classification of water systems 2021-11-30 California State Water Resources Control Board
2020 Urban Water Management Plan 2021-06-01 California Water Service District, Stockton District (Cal Water)
2020 Urban Water Management Plan 2021-08-01 City of Lodi
Manteca General Plan Update 2023-04-01 City of Manteca
2020 Urban Water Management Plan 2021-06-01 City of Stockton
Drivers of change in estuarine-coastal ecosystems: Discoveries from four decades of study in San Francisco Bay. Reviews of Geophysics. 50. 1-33. 10.1029/2012RG000397 2012-10-24 Cloern, James & Jassby, Alan
Integrated Water Flow Model Theoretical Documentation (IWFM-2015), Revision 1443. Bay-Delta Office, California Department of Water Resources 2024-04-02 Dogrul, E. and Kadir, T
Integrated Water Flow Model User’s Manual (IWFM-2015), Revision 1443. Bay-Delta Office, California Department of Water Resources 2024-04-03 Dogrul, E. and Kadir, T
Eastern San Joaquin Groundwater Subbasin Groundwater Sustainability Plan 2022-06-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2019 Annual Report 2020-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2020 Annual Report 2021-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2021 Annual Report 2022-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2022 Annual Report 2023-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Eastern San Joaquin Groundwater Subbasin Water Year 2023 Annual Report 2024-04-01 Eastern San Joaquin Groundwater Authority (ESJGWA)
Extent of Corcoran Clay modified from Page (1986) for the Central Valley Hydrologic Model (CVHM): U.S. Geological Survey data release 2023-09-15 Faunt, C.C.
2021 Agricultural Water Management Plan 2021-03-01 Oakdale Irrigation District (OID)
San Joaquin County Local Hazard Mitigation Plan 2023-01-01 San Joaquin County (SJC)
East Bay Municipal Utility District comments on the Development of Flow Criteria for Priority Streams 2014-04-16 Setka, Jose D
Eastern San Joaquin Integrated Regional Water Management Plan 2020 Addendum 2021-02-01 SJC
2020 Agricultural Water Management Plan 2021-03-23 South San Joaquin Irrigation District (SSJID).
2020 Urban Water Management Plan Update 2021-06-01 South San Joaquin Irrigation District (SSJID).
Groundwater Ambient Monitoring and Assessment (GAMA) Groundwater Information System 2024-07-01 State Water Resources Control Board (SWRCB)
2020 Urban Water Management Plan 2021-06-01 Stockton East Water District (SEWD)
Plant Rooting Depth Database 2024-07-01 The Nature Conservancy
Statewide Status 2024-07-01 The Nature Conservancy
“InSAR Data Accuracy for California Groundwater Basins: CGPS Data Comparative Analysis.” Siskiyou County - California, Project No.14750-0137 2020-03-23 Towill, Inc.
Gage | Data 2024-06-28 UNAVCO
U.S. Census Bureau, QuickFacts 2024-07-01 United States Census Bureau
Station Pages 2024-07-01 University of Nevada Geodetic Laboratory (UNGL)
National Water Quality Monitoring Council 2024-07-01 U.S. Environmental Protection Agency
California. USGS Water-Resources Investigations Report 73-45. 1974-09-01 USGS
2019 Annual Report 2020-01-01 Water Education Foundation
Eastern San Joaquin Water Resources Model (ESJWRM)Version 2.0 Update, Updated Draft Report 2022-06-02 Woodard & Curran
Eastern San Joaquin Water Resources Model Agricultural and Urban Demand 2022-06-02 Woodard & Curran
Gage | Data 2024-06-28 UNAVCO
U.S. Census Bureau, QuickFacts 2024-07-01 United States Census Bureau
Station Pages 2024-07-01 University of Nevada Geodetic Laboratory (UNGL)
National Water Quality Monitoring Council 2024-07-01 U.S. Environmental Protection Agency
California. USGS Water-Resources Investigations Report 73-45. 1974-09-01 USGS
2019 Annual Report 2020-01-01 Water Education Foundation
Assumptions and Results for Category A Projects in ESJWRM. Draft June 2, 2022 2022-06-02 Woodard & Curran
Demand Reduction Analysis in ESJWRM Technical Memorandum. Draft June 2, 2022 2022-06-02 Woodard & Curran
2024 Model Documentation Update. 2024-11-01 Woodard & Curran
Elevation Readings Export (CSV)

SGMA Wells


Existing Sites


General Sites

Current Periodic Evaluation

2025  Periodic Evaluation