◈ Homepage — https://ssjwd.org/Skip to Main Content SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US AGENDAS & MINUTES GSP IMPLEMENTATION NEWSLETTER BASIN SCIENCE 1/4 3-D BASIN MODEL SSJWD has a new modeling tool.  Watch the presentation by GSI Water Solutions and "take a tour" of the Basin. Watch Video ​ NEWS & ANNOUNCEMENTS April 22, 2026 SSJWD Notice of Board Vacancy due to Resignation Resolution 2025-10 The there is a vacancy in the office of Director of the Shandon-San Juan Water District due to a resignation.  A replacement will be appointed by the remaining Directors.  Members of the District who are interested in serving on the Board are encouraged to send their name and resume to the District by May 8, 2026.   Learn More May 13, 2026 June 18, 2026 SSJGSA/SSJWD Board of Directors Meeting Special Meeting The Board of Directors of the Shandon-San Juan Groundwater Sustainability Agency/ Shandon-San Juan Water District will hold a special meeting on Wednesday, May 13, 2026 at 9am at the Illy House located at 3385 Truesdale Road, Shandon, CA 93461.   SSJGSA/SSJWD Board of Directors Meeting Regular Meeting The Shandon-San Juan Groundwater Sustainability Agency/Shandon-San Juan Water District Board of Directors meeting scheduled for Wednesday June 24, 2026 has been rescheduled to Thursday June 18, 2026 at 9am at the Illy House located at 3385 Truesdale Road, Shandon, CA 93461. Agendas & Minutes Agendas & Minutes © 2025 by Shandon-San Juan Water District ◈ Interior Pages — 10 pages crawled--> SSJWD Monitoring Network | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. MONITORING NETWORK SSJWD Well Data Collection The Shandon-San Juan Water District is undertaking a data collection effort to get a better understanding of the hydrogeology that makes up our portion of the Paso Robles Groundwater Basin.  In collaboration with District landowners, we are examining as many of our wells as possible to accurately map areas of relative connectivity and to distinguish areas that are less connected.  The District will ultimately use this information to select wells that accurately represent each part of our area as monitoring wells to be used in implementation of the GSP.  ​ ​ ​ Well Data Collection Request to Landowners Published September 25, 2020 Consent Form for Well Access and Data Use ​ Dear Shandon-San Juan Water District/GSA Landowner,   One bright spot of 2020 is that, thanks to the cooperation of folks like yourself and other landowners, a Groundwater Sustainability Plan (GSP) was completed and submitted to DWR for the Paso Robles Groundwater Basin.  Now it is time to embark upon the next phases of this journey.     The Shandon-San Juan Water District is undertaking a data collection effort to get a better understanding of the hydrogeology that makes up our portion of the Paso Robles Groundwater Basin.  One of the key steps in this process is to gather information from existing wells that will help us paint a better picture of what is beneath us including standing water levels, perforation elevations, well depth, and even just an accurate location.  We need your help.  We are reaching out because we think that you have one or more wells that could help us in our efforts and we would like to discuss the possibility of reaching an agreement that would allow the District, and our consultants and engineers, access and short term use of the information from your well.  The District would also be grateful for any form of well data you can share, including photocopies of old well records.    To gather the standing water data from the wells, we have hired Debbie Cooper and Charity Doherty from Wayne Cooper Ag Services.  Using this data, the District’s hydrogeological engineer, GSI Water Solutions, will examine as many of our wells as possible to accurately map areas of relative connectivity and to distinguish areas that are less connected.  The District will ultimately use this information to select just a few wells that will accurately represent each part of our area as monitoring wells to be used in implementation of the GSP.   Just to clarify, this data collection effort is being led and funded by the Shandon-San Juan Water District so there is no cost to you as the landowner.   The confidentiality of your data is of great concern to the District.  During this study period, the District and our Consultant Engineer will hold this data solely for the purpose of this study.     If you can help us and wish to participate, all you need to do is fill out this Consent Form for Access and Use of Well Data  and share any old well records you have on hand.  We can make the photo copies.  Please sign and return the form via email at  [email protected]  or by mail to:  P.O. Box 150, Shandon, CA 93461.  We would like to get to work as soon as possible.  If you could get this back to us by October 5th, we would appreciate it.    If you have any questions, concerns, or would just like to discuss this further, please feel free to contact us at [email protected]   Thank you for your time. New Monitoring Wells & Stream Gages SSJGSA has helped the Department of Water Resources install a stream gage on Cholame Creek right above Shandon and completed installation on another stream gage on the San Juan Creek at Shell Creek Road crossing. ​ The City of Paso added monitoring wells at the 13th ST bridge and at the Estrella/Airport Road crossing.  The City of Paso Robles has also installed stream gages along the Estrella River at Whitley Gardens / Hwy 46 E Bridge and the Salinas River at San Miguel. ​ ​ Potential Stream Gage Sites SSJWD discussed these potential projects and resources at the April 21, 2020 Board Meeting. ​ Salinas River 13th Street Bridge in Paso Robles Salinas River North of San Miguel - Potential Stream Gage Site Huer Huero at Highway 41 and Creston Road Huer Huero Stream Gage at Linde Road near Cass Winery Shell Creek Carissa Highway 58 East of Shell Creek Road San Juan Creek Cement Slab Crossing of Shell Creek Road Estrella River East of Shandon at Highway 46 Bridge Creek Lands Conservation Scope of Work Creek Lands Conservation Alluvial Support Interconnected Surface Water Monitoring Data Gap Proposed Gage Location Map Proposed Gage Site Map Paso Basin Stream Gage Locations (11-27-19) Technical Needs Assessment for Support Services in the Paso Basin (2018) © 2025 by Shandon-San Juan Water District bottom of page --> Board of Directors | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. BOARD OF DIRECTORS The Shandon-San Juan Water District is governed by a five-member Board of Directors.  The Directors are elected by the registered voters of the Water District to staggered four-year terms.   WILLY CUNHA [email protected] STEVE SINTON [email protected] PRESIDENT Term:  2023-2027 VICE PRESIDENT Term:  2025-2029 MARSHALL MILLER [email protected] DIRECTOR Term:  2025-2029 RAY SHADY  [email protected] DIRECTOR Term:  2025-2029 MATT TURRENTINE [email protected] DIRECTOR Term:  2023-2027 © 2025 by Shandon-San Juan Water District bottom of page --> GSP IMPLEMENTATION | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. PASO ROBLES AREA GROUNDWATER AUTHORITY  GSA Partners The Sustainable Groundwater Management Act (SGMA), enacted in 2014, required local agencies to manage groundwater.  Five local agencies — the City of Paso Robles, San Luis Obispo County, San Miguel Community Services District (SMCSD), Shandon-San Juan Water District, and Estrella-El Pomar-Creston Water District — formed GSAs and collaborated under a Memorandum of Agreement (MOA) to develop the Groundwater Sustainability Plan   (GSP) t o sustainably manage the portions of the Paso Robles Basin underlying their combined service areas (i.e. all portions of the Basin located within San Luis Obispo County). ​ With the GSP now approved by the State, a long-term governance structure was recently adopted to implement it more effectively.  The Joint Exercise of Powers Agreement (JPA ), adopted in March 2025, supplants the MOA, and creates a legal entity, the Paso Robles Area Groundwater Authority (PRAGA), to oversee and fund GSP implementation. The 4-Party JPA defines governance, voting rights, funding mechanisms, and responsibilities. PRAGA will be funded primarily through groundwater extraction fees, though initial costs would be covered by contributions from the GSAs. The Authority has powers to regulate and manage groundwater use but does not replace the individual GSAs.  San Miguel Community Services District elected not to participate in the JPA. ​ City of Paso Robles County of San Luis Obispo Estrella-El Pomar-Creston  Shandon-San Juan Water District ​ Paso Robles Area Groundwater Authority (PRAGA) Meetings PRAGA conducts its regular board meetings on the fourth Wednesday of each month.   Parties interested in the management of groundwater in the Paso Robles Basin are encouraged to attend.  Remote participation is also available to the public and is noted on each agenda. PRAGA Agendas © 2025 by Shandon-San Juan Water District bottom of page --> GSA Formation | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. GROUNDWATER SUSTAINABILITY AGENCY (GSA)  WHAT IS A GSA? The Shandon-San Juan Water District has formed a Groundwater Sustainability Agency (GSA), the Shandon-San Juan GSA.  GSAs are tasked with assessing conditions in their local basins and adopting local management plans or “Groundwater Sustainability Plans” (GSPs).  Each high and medium priority groundwater basin must be managed in its entirety by one or more GSAs in a coordinated manner.  For more information, download the fact sheets. ​ GSA Fact Sheet SGMA Fact Sheet SGMA Implementation Update, December 2017 GSA PARTNERS The Shandon-San Juan GSA worked collaboratively with other local area GSA's to form the Paso Basin Cooperative Committee.  The purpose of the Cooperative Committee is to to develop one single Groundwater Sustainability Plan (GSP) for the entire Basin that will be considered for adoption by each individual GSA and subsequently submitted to the Department of Water Resources for approval by January 31, 2020.  The Paso Basin Cooperative Committee is comprised of the following GSA's. ​ City of El Paso de Robles County of San Luis Obispo Heritage Ranch Community Services District San Miguel Community Services District Shandon-San Juan Water District GSA FORMATION GSA HEARING The District held a public hearing on Thursday, June 8, 2017 to officially form a GSA. View the presentation . BECOMING A GSA Framework of priorities to become or form a groundwater sustainability agency (GSA).   Read more . PASO BASIN GSA'S The County held a public hearing on May 16, 2017 to provide an overview of the Paso Basin.   View presentation. RESOURCES County of San Luis Obispo http://www.slocountywater.org/sgma ​ Sustainable Groundwater Management Website: http://water.ca.gov/groundwater/sgm/index.cfm ​ Sustainable Groundwater Management Act (SGMA) Updates: June 2017 Update ​ 2014 SGMA Legislation Text with 2015 Legislative Amendments: http://www.water.ca.gov/cagroundwater/docs/2014%20Sustainable%20Groundwater%20Management%20Legislation%20_with% 202015 %20amends%2011-10-2015_clean-2.pdf ​ GSA Frequently Asked Questions: http://water.ca.gov/groundwater/sgm/gsa.cfm ​ GSA Formation Table:       http://www.water.ca.gov/groundwater/sgm/gsa_table.cfm   GSA Interactive Map: http://water.ca.gov/groundwater/sgm/gsa_map.cfm   Water Management Planning Tool: http://water.ca.gov/groundwater/boundaries.cfm   Basin Boundaries Assessment Tool: http://water.ca.gov/groundwater/sgm/bbat.cfm GIC Interactive Map (Data): http://water.ca.gov/groundwater/MAP_APP/index.cfm © 2025 by Shandon-San Juan Water District bottom of page --> Stormwater Capture Studies | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. STORMWATER CAPTURE STUDIES AND RESOURCES December 2020 STORMWATER CAPTURE AND RECHARGE FEASIBILITY STUDY January 2018 HUER HUERO CREEK SITE RECHARGE SITING FEASIBILITY STUDY Library RESOURCES TO REVIEW ​ Huer Huero Study Report (Final) DWR Streamlined Recharge Permitting FloodMar White Paper - June 2018 Enhancing Groundwater Recharge with Stormwater Flood Control, Groundwater Recharge, and Water Rights Flood Managed Aquifer Recharge (FloodMar) FloodMar RDD Plan ACWA Groundwater Replenishment Framework On-Farm Recharge Engineering Cost Analysis Report On-Farm Recharge Guidance Sheet DWR - Purposes of Use for Underground Storage Projects Recharge Net Metering Salinas River Watershed in SLO County Central Coast - Stillwater Watershed Characteristics Surface Water Rights Decisions, Upper Salinas (1980) Fully Appropriated Stream Systems, Salinas River (SWRCB 1997)  © 2025 by Shandon-San Juan Water District bottom of page --> AGENDAS & MINUTES | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. AGENDAS & MINUTES Regular monthly meetings for the Shandon-San Juan Sustainability Agency/Shandon-San Juan Water District are held on the fourth Wednesday of each month at 9:00 a.m. at the Illy Lodge at Illy Sunnyslope Farms located at 3385 Truesdale Rd., Shandon, CA 93461. Special meetings will be held as necessary and noticed to the public.  The public may participate in-person, via phone, or by logging onto the web-based meeting link provided on each agenda.   ​ May 13, 2026 Special Meeting @ 9am Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Board Vacancy a.    Candidate Resume b.   Resolution 26-001 April 22, 2026 Regular Meeting @ 9am Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Consent Agenda                    a.  Meeting Minutes - February 4, 2026              b.     Secretary/Treasurer's Report   - April 17, 2026 #6:  PRAGA Agenda for April 22, 2026 #8:  DRAFT SSJ Budget for FY 2026-27 #9:  Rate Calculator for Assessments #12:  Metrics from SSJ/EPC Newsletters #13:  LAFCO Run-off Election for Special District           Alternate Seat   December 8, 2025 Special Meeting @ 9am February 4, 2026 Special Meeting @ 9am Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Consent Agenda                    a.  Meeting Minutes - Dec 8, 2025                b.   Secretary/Treasurer's Report - Jan 30, 2026 #6:  PRAGA  c-e.  Stakeholder Feedback Form #7:  SSJGSA-EPCGSA Outreach Efforts a.    Proposal from Altum Aqua Logic b.    Newsletter Metrics #8:  DWR URCTA Program   October 29, 2025 Meeting Cancelled Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Consent Agenda                    a.  Meeting Minutes - Sept. 24, 2025                b.   Secretary/Treasurer's Report - Dec. 5, 2025 #6:  PRAGA Agenda Packet - Dec 1, 2025         c.  Regional Groundwater Stakeholder Group #7.  PRAGA Funding Request - SSJWD Budget   September 24, 2025 Regular Meeting @ 8am Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Consent Agenda                    a.  Meeting Minutes - August 13, 2025                b.   Secretary/Treasurer's Report - Sept. 18, 2025 #6:   Paso Robles Area Groundwater Authority   #7:  PRAGA Request for Financial Contribution   August 13, 2025 Special Meeting @ 9am Location:  Illy Lodge at Sunnyslope Farms 3385 Truesdale Road, Shandon, CA 93461 Agenda #4:  Consent Agenda                    a.  Meeting Minutes - June 27, 2025                 b.   Secretary/Treasurer's Report - August 8, 2025 #6:  Paso Robles Area Groundwater Authority          c.  Alternative Revenue Options #7:  SSJWD Budget         a.  Approved SSJWD FY 2025-26 Budget         b.  PRAGA Treasurer's Report 08-01-25 #8:  Resolution 25-003 - Levy 2025 Assessment #9:  Tripepi Smith - Community Outreach Support        a.  Amendment #1        b.  Contract Approved by SSJWD (July 2024)   © 2025 by Shandon-San Juan Water District bottom of page --> BASIN SCIENCE | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. PASO BASIN MODELING  TOOL 3-D Model Presentation Based on SkyTEM Survey Data SSJWD recently hired GSI Water Solutions to create a three dimensional computer model of the layers of sediments making up the water holding components of the Paso Robles Groundwater Basin.  This model utilizes publicly available data and analysis from the Sky-TEM electromagnetic helicopter survey of the Basin (links to data below). This 3-D tool is not only fascinating, but will be very useful in any future projects and to guide future management actions.   ​ Hit the play button below or click on this link to view in YouTube:   https://youtu.be/C4F08rJc8ak (You can expand to full screen view with the button to the lower right.) GEOLOGIC STUDIES OF THE BASIN Stanford University March 2021 MULTI-POINT STATISTICS METHOD FOR SkyTEM SURVEY Read MPS Report ​ ​ ​ SkyTEM Data Report October 2020 SURVEY:  PASO ROBLES BASIN ​ ​ ​ Read SkyTEM Report ​ ​ ​ Ramboll Study October 2020 HYDROGEOLOCIAL CONCEPTUAL MODEL IN PASO ROBLES ​ ​ Read Ramboll Study ​ ​ ​ Colgan Report August 2012 NEOGENE DEFORMATION IN THE SALINIAN BLOCK ​ Read Colgan Report ​ ​ SLO COUNTY COMPUTER MODEL UPDATE Final Report and Data 2015 Computer Model Update and 2016 Refinement On August 28, 2012 the Board of Supervisors awarded a contract to Geoscience, Inc. to update the computer model for the Basin. The scope of work for the project included: ​ Updating the model to extend the period covered from 1981-1997 to 1981-2011 Refining the perennial (safe) yield for the Basin Assessing the model input parameters that have the greatest effects on the model's simulation results to determine the certainty of model predictions Evaluating the Basin's response to "growth" and "no-growth" scenarios projected over the period 2011 to 2041 (i.e. simulating how water levels would change) ​ On January 13, 2015, the final report was presented to the Board of Supervisors, and an amendment to the contract to perform additional refinements to the model and conduct additional model runs was approved. © 2025 by Shandon-San Juan Water District bottom of page --> NEWSLETTER | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. QUARTERLY NEWSLETTER Sustainable Solutions:  Securing Water Resiliency in the Paso Robles Groundwater Basin Sign up for the Shandon-San Juan / Estrella-El Pomar-Creston joint newsletter to receive the latest news and information on our progress toward sustainability in the Paso Robles Groundwater Basin.   ​ ​ ​ Sign Up Now Read Spring/Summer 2025 Newsletter: Read Winter 2025 Newsletter: Read Fall 2024 Newsletter: © 2025 by Shandon-San Juan Water District bottom of page --> GSP 5 Year Evaluation | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. PASO BASIN GSP 5-YEAR PERIODIC EVALUATION The Sustainable Groundwater Management Act (SGMA) requires periodic evaluation of approved Groundwater Sustainability Plans (GSPs) at least every 5 years. The periodic evaluation represents the Groundwater Sustainability Agencies’ (GSAs’) written assessment of GSP implementation and adaptive management. The Paso Basin GSAs submitted the 5-Year Plan Evaluation to the California Department of Water Resources on January 30, 2025 following a 30-day public comment period that closed in December. Thank you to all who contributed to this important process!.​ ​ ​       Progress Toward Sustainability ​ The implementation of the GSP to date, in tandem with higher-than-average rainfall over the past two years, has been effective in preventing further declines in groundwater levels and, by extension, reduction of groundwater in storage. These activities, in addition to planned Projects and Management Actions indicate progress toward achieving sustainability in the first 5-year period of SGMA implementation. ​ Key Takeaways Over the past five years, groundwater monitoring data revealed rising water levels due to above-average precipitation, with no significant changes in subsidence or water quality conditions linked to groundwater management.  Significant strides have been made in data collection, policy changes, and governance, with water level declines in most representative monitoring sites reversed, indicating notable progress toward sustainability.   See Summary Table The GSAs believe it is premature to revise or amend the existing GSP at this time.  Several key activities, such as the installation of more monitoring wells and initiation of GSP projects and programs, are still in progress. ​ View 5-Year Evaluation Read GSP 5-Year Evaluation: © 2025 by Shandon-San Juan Water District bottom of page --> GSP Annual Reports | SSJWD top of page SHANDON-SAN JUAN WATER DISTRICT SHANDON-SAN JUAN GROUNDWATER SUSTAINABILITY AGENCY ABOUT US District Info Notive of Vacancy GSA Formation Board of Directors Contact AGENDAS & MINUTES GSP IMPLEMENTATION Read the GSP GSP Annual Reports GSP 5 Year Evaluation Rate Study SWRCB Applications Economic Impact Study NEWSLETTER BASIN SCIENCE Stormwater Capture Studies SSJWD Monitoring Network More Use tab to navigate through the menu items. GSP ANNUAL REPORTS GSP Annual Report, Water Year 2025 The GSP Annual Report for Water Year 2025 (October 1, 2024 - September 30, 2025) is now available to download. Click on the images below to download a copy.   Each year, the Annual Report is uploaded to the California Department of Water Resources Groundwater Sustainability Plan portal before the April 1 deadline in compliance with SGMA.   ​ Annual Report  WATER YEAR 2025 ​ Annual Report  WATER YEAR 2024 ​ Annual Report  WATER YEAR 2023 ​ Annual Report  WATER YEAR 2022 ​ Annual Report  WATER YEAR 2021 ​ © 2025 by Shandon-San Juan Water District bottom of page