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Survey mailed to landowners to determine drought impacts on groundwater

South Fork Kings GSA is conducting a series of surveys with landowners to better understand groundwater and land use in their area. The first survey in this survey is designed to help the GSA better understand landowners’ perspectives on how climate and drought impacts their groundwater supply.

The survey was in homes the second week of June. Landowners who submit their survey by June 30, 2021 will be entered to win one of fifteen $50 Amazon gift cards. The survey can also be taken online here.

Our goal as the South Fork Kings Groundwater Sustainability Agency (GSA) is to achieve a sustainable groundwater supply that is strong through cycles of drought. This survey series will help the South Fork Kings GSA better serve its landowners and stakeholders by helping us better understand their needs and the groundwater supply they rely on.

Airborne Electromagnetic Survey will help South Fork Kings GSA make groundwater management decisions

The Department of Water Resources has received funding from a Proposition 68 grant to conduct Airborne Electromagnetic (AEM) Surveys throughout the state.

During an AEM survey, a helicopter tows electronic equipment that sends signals into the ground which bounce back. The process has been compared to taking an MRI of the ground’s subsurface. The data collected is used to create continuous images that are interpreted for underground geology. The resulting information will provide a standardized, statewide dataset that improves the understanding of aquifer structures. It can also help with the development or refinement of hydrogeologic conceptual models and can help identify areas for recharging groundwater. (DWR)

These AEM Surveys will begin in Salinas valley, then move toward the southern Central Valley and work their way north. The data collected by the AEM survey will allow South Fork GSA to make informed groundwater management decisions, like what areas of the agency are ideal for recharging groundwater during wet years. After the flight has taken place, it will take about 6 months to get the AEM results from DWR.

The success of this survey is dependent on driller logs and the collection of other pieces of data. Stanford University and Dr. Rosemary Knight, are conducting additional subsidence modeling, digitizing well driller logs and well completion reports, and are looking to utilize NASA funds for this work. SFKGSA will write a letter of support for Dr. Rosemary Knight to show NASA that there is a need and interest in the collection of this data.

Groundwater in the Tulare Lake Subbasin: Annual Report Update

The South Fork Kings GSA (SFKGSA), together with the four other GSAs in the Tulare Lake Subbasin, submitted the second Annual Report to the CA Department of Water Resources (DWR) by the April 1, 2021 deadline.  Dryer conditions in water year 2020 (Sept 2019 – Oct 2020) strained groundwater supplies across the Tulare Lake Subbasin, evidence that cooperation among groundwater users and strategic surface supply management will be critical to achieving sustainability by 2040.

The Annual Report includes an overview of groundwater conditions in the region including groundwater extraction, surface water supply available for groundwater recharge, total water use, change in groundwater storage, and a description of progress made toward implementing the Groundwater Sustainability Plan (GSP) since the last Annual Report.

The Sustainable Groundwater Management Act (SGMA) requires Groundwater Sustainability Agencies (GSAs) to submit annual reports to the Department of Water Resources (DWR) on April 1 of every year.

The Tulare Lake Subbasin extracted 100,000 acre-feet (AF) less than the prior water year, but due to dryer conditions during Water Year 2020, the Subbasin also saw an overall decrease of 25,706 AF in groundwater storage as observed in this year’s Annual Report.  As we review the Annual Report and consider its implications as we enter another dry water year, SFKGSA will continue to implement innovative projects that will lead to a sustainable, resilient, and steadfast supply of groundwater for the region.

Here are a few SFKGSA highlights from the Tulare Lake Subbasin’s 2020 Annual Report:

SFKGSA participated in discussions with the San Joaquin Valley Blueprint to increase water supplies to the area.

Based on several wells being destroyed or inaccessible, SFKGSA worked with local landowners to modify the groundwater monitoring network. Access agreements were obtained for the modified network to ensure its long-term availability.

SFKGSA applied for and was awarded a grant from the California Resilience Challenge to implement an Aquifer Storage and Recovery (ASR) Pilot Test. Click HERE to learn more about this supply enhancement program and the progress made thus far.

SFKGSA participated in coordination meetings between the Kaweah and Tulare Lake Subbasins. The purpose of the meetings was to identify issues, discuss boundary conditions, and share data across the region. These meetings are expected to continue to help provide common solutions to regional issues. SFKGSA will continue to engage with neighboring subbasins and GSAs to promote inter-basin coordination.

Click HERE to read full Annual Report.

To receive updates on these projects and more, groundwater conditions, and other ways to get involved with the work SFKGSA is doing, sign up for our E-Updates and visit our website at southforkkings.org.

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