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Time Set   # 31.
Board of Supervisors
Meeting Date:
10/07/2025
Brief Title
Consider extending 45-Day Agricultural Well Permit Moratorium
From:
Adam Fieseler, Director, Department of Community Services
Staff Contact:
April Meneghetti, Director, Environmental Health Division, Department of Community Services, x8597
Supervisorial District Impact:
District 5

Subject

Hold a public hearing to consider extending the temporary 45-Day Moratorium imposed by Urgency Ordinance No. 1576 on the approval of new agricultural water well permits in the Yolo Subbasin Groundwater Management Agency's Focus Areas for a period not to exceed an additional 10 months and 15 days (may not be extended past August 25, 2026); if the Board opts to proceed with extending the moratorium, introduce by title only and waive further reading of an Interim Urgency Ordinance extending the temporary moratorium on the approval of new agricultural water well permits in the YSGA’s Focus Areas, with specified exemptions, pending the County's study and consideration of well permit and crop conversion regulations through the extension period determined by the Board; determine adoption of the urgency ordinance is exempt from CEQA pursuant to CEQA Guidelines, Sections 15060(c)(2), 15061(b)(3), and 15306 (Class 6); adopt the proposed urgency ordinance extending the moratorium; provide feedback to staff regarding the draft charter for the Agricultural Well Permitting Working Group; and provide direction to staff regarding modifications and extension of Urgency Ordinance No. 1569’s well permit requirements for Non-Focus Area agricultural well permits to be brought forward on October 21, 2025, prior to the expiration of Urgency Ordinance No. 1569. (No general fund impact) (Fieseler/Meneghetti)  (4/5 vote required) (Est.  Staff Presentation: 15 min)

Recommended Action

  1. Hold a Public Hearing to consider extending the current temporary 45-Day Moratorium on the approval of new agricultural water well permits in the Yolo Subbasin Groundwater Agency’s (YSGA) Focus Areas for up to an additional 10 months and 15 days (no longer than through August 25, 2026) with periodic updates to the Board;
     
  2. If the Board opts to extend the moratorium, introduce by title only and waive further reading of an Interim Urgency Ordinance extending the temporary moratorium on the approval of new agricultural water well permits in the YSGA’s Focus Areas, with specified exemptions, pending the County's study and consideration of well permit and crop conversion regulations through the extension period determined by the Board (Attachment A);
     
  3. Determine adoption of the urgency ordinance is exempt from CEQA pursuant to CEQA Guidelines, Sections 15060(c)(2), 15061(b)(3), and 15306 (Class 6) (Attachment I);
     
  4. Adopt the proposed urgency ordinance extending the moratorium;
     
  5. Provide feedback to staff regarding the draft charter for the Agricultural Well Permitting Working Group (Attachment B); and
     
  6. Provide direction to staff regarding modifications and extension of Urgency Ordinance No. 1569’s well permit requirements for Non-Focus Area agricultural well permits to be brought forward on October 21, 2025, prior to the expiration of Urgency Ordinance No. 1569.

Strategic Plan Goal(s)

Thriving Residents
Collaborative Community
Sustainable Environment
Flourishing Agriculture

Reason for Recommended Action/Background

A. Extension of the 45-Day Moratorium

Urgency Ordinance No. 1576, which resulted in a temporary 45-day moratorium on the approval of new agricultural water well permits in the Yolo Subbasin Groundwater Agency (YSGA) Focus Areas, was approved by the Board of Supervisors on August 26, 2025.  Urgency Ordinance No. 1576 and the temporary moratorium will expire on October 10, 2025, if the Board takes no further action or opts not to extend the moratorium. The purpose of the moratorium was to allow additional time to consider whether updates to County zoning regulations or further changes to the well permit process are warranted in the Focus Areas related to crop conversions that result in a hardening of demand for groundwater resources.

Further information regarding the moratorium can be found in the August 26th minute order packet. (Attachment C)

Since the moratorium was enacted, staff have worked diligently to research and develop recommendations.  Staff have met with the YSGA to better understand the development of Focus Area boundaries and the Tier 2 hydrogeologic review process.  Staff have also met with consultant Luhdorff & Scalmanini Consulting Engineers (LSCE) to discuss methods of verification of pumping capacity and other possible options to address the concerns of the Urgency Ordinance. Also, staff have developed a draft charter for the proposed Agricultural Well Permitting Working Group (discussed further below).  These steps are further outlined in the 10-day report approved by the Board pursuant to Government Code section 65858(d) on September 23, 2025.  (Attachment D)

However, the conditions that led to the Board’s approval of the initial 45-day moratorium remain, and more time is needed to further investigate and determine if additional permitting or land use changes are warranted to address groundwater concerns, particularly in the Focus Areas.  The Findings supporting an extension of the temporary moratorium on new agricultural wells in the Focus Areas are set forth in the proposed Urgency Ordinance. (Attachment A) To summarize:
  • Groundwater is a vital resource essential to the health, safety and welfare of the many communities and agricultural areas in the County. Therefore, it is necessary to better understand the impacts of land use changes on groundwater supplies and gather additional information to better inform YSGA and County evaluation of proposed new agricultural wells with an eye towards protecting the sustainability of groundwater resources. 
  • Although wells in the Yolo Subbasin have shown significant recovery in many areas of the County, that has not been the case in all areas and concerns remain regarding groundwater sustainability with the hardening of water demand for irrigation needs with the continued development of perennial crops.  These concerns were most recently highlighted with the approval of five wells in the Focus Areas to irrigate new perennial crops.
  • There remain additional concerns within the Focus Areas, particularly related to the conversion of dry-farmed lands to irrigated perennial crops (e.g., almonds, pistachios, and olives) that have resulted in calls for a moratorium on new wells in the Focus Areas.  As noted in the Groundwater Sustainability Plan (GSP), “An important feature of land use changes in the Subbasin is an increasing acreage of perennial crops (deciduous, subtropical, and vines), which have partly replaced field crops, and brought previously uncultivated area into production in some regions.”  Because perennial crops are permanent, they decrease the flexibility of water demand (“demand hardening”).  (GSP, Sec. 2.3.2.)  Further analysis is needed to consider groundwater demand hardening with conversions to perennial crops, but absent a moratorium or temporary pause on well permits in the interim, new wells would be approved in the Focus Areas where data gaps and groundwater sustainability concerns are of particular concern. 
  • The YSGA is currently working on developing a water budget and prioritizing projects and management actions for the Hungry Hollow area with a working group that is expected to result in release of a White Paper in April 2026.  The YSGA’s Hungry Hollow White Paper may provide insights into whether further changes to agricultural land uses may be necessary or may be adequately addressed with implementation of other measures.
  • Further study of the impacts of the planting of perennial crops on previously non-irrigated lands to better connect land use decisions with water availability is critical to determine if further regulations should be implemented with respect to such land use changes to protect against unsustainable groundwater impacts.
Examination of these issues and what measures should occur involve more in-depth review and study that cannot be completed within a few months.  As noted in the August 26th staff report, the following options have been raised that reflect significant changes from the County’s current practices and need to be balanced with considerations of Yolo County’s right to farm policies and water rights, as well as considerations related to level of staff involvement and funding considerations:
  • Well Meters – New agricultural wells could be required to install meters to measure the amount of water pumped from the well.  The property owners would likely be required to report this information to either the County and/or the YSGA.  However, preliminary discussions on the use of meters have raised questions as to frequency of reporting, who will be responsible for collecting, cost impacts both to property owners/farmers and the County, concerns about data confidentiality concerning water use, and whether alternatives, such as additional monitoring wells, may be preferential to installation of individual well meters.  Other options to evaluate may also include incentive programs or options for existing agricultural well owners.
  • Conduct additional hydrogeologic review of proposed new agricultural wells with a consultant retained or approved by the County within the Focus Areas to determine the likelihood that extractions from a new well will cause impacts to groundwater levels. This suggested change derived from the review of four recent well permits issued in the Focus Areas that went through the YSGA’s 2-tier review process.  Questions were raised during that review regarding assumptions relied on by the applicant-retained hydrogeologist who prepared the reports.  There are different options for implementing an additional hydrogeological review that have been considered since the August 26th meeting.  Implementing additional review, which requires further consideration and input, includes consideration of the additional costs and whether this would be better left as a matter for the YSGA as part of its tiered review process or as a joint review by the YSGA and County when a well requires a hydrogeologist report based on the County’s well separation requirements. Some suggested ideas include an on-call solicitation that would result in a list of qualified hydrogeologists already vetted that could be utilized for any permits requiring hydrogeologist review.
  • Require use permits or other discretionary review of crop conversions in certain agricultural zones. Currently, the Zoning Regulations do not place any limits on the types of crops on properties zoned for agricultural use and no approval is required to convert dry-farmed land to irrigated crops.  As the discussion regarding the moratorium explains, there have been significant increases in the conversion of dry farmed land or previously uncultivated land to perennial crops or other crops that would increase or "harden" groundwater demands. Initial discussions with Planning staff indicate this will require an amendment to the Yolo County Code to update the Zoning Regulations, as well as a possible amendment to the General Plan to provide policy direction, which may involve significant environmental review as well.  Further analysis and input from the Working Group on whether to even proceed with such changes are necessary.
As the conditions that led to the 45-day moratorium still exist, staff recommends extending the moratorium.  Adoption of the proposed temporary moratorium will maintain the status quo to enable the County and YSGA to adequately study and develop policies and regulations and implement other recommended actions for issuing well permits within the Focus Areas.

B. Moratorium Extension Procedure

Government Code section 65858 allows the Board of Supervisors to extend the moratorium following a noticed public hearing and a further four-fifths vote of the Board of Supervisors for up to an additional 10 months and 15 days, or through August 25, 2026 (one year from when the moratorium was initially adopted).  The temporary moratorium may only be extended thereafter for one additional year.  (Gov. Code, § 65858(a).)  No more than two extensions are permitted.

Because of the uncertainty as to what longer-term changes to well permits and any related land use issues, particularly in the Focus Areas, may result from the Working Group recommendations (discussed further below) and the two extension limitations allowed by Government Code section 65858, staff recommend that the Board approve the maximum 10-month and 15-day extension through August 25, 2026, with the understanding that the Board may rescind the moratorium prior to that date.  Although the Board may rescind the moratorium at any time, extending the moratorium is more difficult than attempting to work diligently to lift the moratorium without needing the full year. To address concerns with a longer extension, the Board may want to consider adding a requirement that staff provide periodic updates to the Board, such as every 60–90 days.   

Staff recognize the need to proceed expeditiously in evaluating options in the Focus Areas and have prepared a timeline for options to consider with respect to efforts to determine what, if any, further regulations may be warranted to address the groundwater sustainability concerns in the Focus Areas. (Attachment E)

C. Proposed Change to Scope of the Moratorium

One of the issues that has come up since the Board approved the 45-day moratorium is the scope of the moratorium, which currently applies to new agricultural wells proposed within the boundaries of the Focus Areas, including the entire parcel, even if only a portion of the parcel is included within the Focus Areas and the proposed well is located outside the Focus Area boundary.  After further consultation with the YSGA, staff recommend that the temporary moratorium, if extended, be narrowed to just new agricultural well permits located within the Focus Area boundaries. 

YSGA went through an extensive public process in establishing the Focus Areas (see Focus Area map – Attachment F).  The Focus Area map was developed with the assistance of West Yost and reviewed at the YSGA Board meetings on October 27, 2023, November 20, 2023, January 22, 2024, and March 18, 2024, in conjunction with development of the tiered review process that YSGA applies to new well applications, primarily in the Focus Areas, in determining whether to issue the verification required for the County to approve a new well permit.  As part of that process, a buffer was already accounted for in the well permits to account for the maximum 2,000-foot well separation distances developed by the County with LSCE.  The full summary of the methods used for delineating the Focus Area map is included in Attachment G (Appendix I excerpt from West Yost Technical Memo).  As a result, YSGA has expressed concerns with further expanding the moratorium to portions of properties beyond the Focus Areas, which could potentially add thousands of acres to the moratorium.

In light of the information from YSGA regarding the methods used to delineate the Focus Areas and the fact that all well permits will go to the YSGA for review and verification for consistency findings, further expansion of the moratorium to wells located on portions of properties outside the Focus Area boundaries appears to be unnecessary.  Accordingly, the proposed urgency ordinance extending the moratorium (Attachment A) as drafted is limited to proposed new wells to be located within the boundaries of the Focus Areas.

D. Agricultural Well Permit Working Group

At the August 26, 2025, Board of Supervisors meeting, the Board directed staff to return to this meeting with recommendations and an outline of an Agricultural Well Permit Working Group.  Staff recommend that the Working Group members consist of representatives from YSGA, Yolo County Farm Bureau, Yolo County well drillers, Focus Area landowners, and subject-matter experts from UC Davis with a total of 10–12 members.

The purpose of this Working Group will be to review possible changes to the Yolo County Well Ordinance regarding well permitting within the Yolo Subbasin Groundwater Agency (YSGA) Focus Areas and to provide recommendations on possible changes to Yolo County Environmental Health (YCEH) staff.  YCEH staff will then present these recommendations to the Board of Supervisors for consideration.

A draft charter has been developed (Attachment B). The Working Group members will be tasked with reviewing and approving this charter at the first meeting, which is to be held within 30 days.

E. Proposed Process for Well Ordinance Update

The focus of the October 7th public hearing will be on the temporary moratorium in the Focus Areas, but staff is also providing an update and seeking guidance from the Board for adoption of an ordinance to codify the interim well permit measures set forth in Urgency Ordinance No. 1569, which will expire on October 31, 2025, without further action of the Board.  Urgency Ordinance No. 1569 was approved by the Board on October 22, 2024, to continue the well permitting requirements that YCEH and YSGA adopted to meet the requirements of the Governor's Executive Orders (EOs) N-7-22 and N-3-23, pending completion of long-term well ordinance updates.  These continued requirements have proven to be important to groundwater sustainability efforts, ensuring further coordination between the County and YSGA to consider groundwater sustainability concerns.  While further concerns are prompting the moratorium in the Focus Areas, staff is recommending moving forward with codification of Urgency Ordinance No. 1569’s well permit procedures into the well permit ordinance to help move the process forward and bring more certainty and clarity on the well application process for those well permit applicants outside the Focus Areas.

Staff anticipate returning to the Board with the revised well permit ordinance on October 21, 2025, for introduction and second reading/adoption on November 4, 2025.  The ordinance would then take effect 30 days thereafter on December 4, 2025.  Because Urgency Ordinance No. 1569 expires on October 31, 2025, staff will also bring an urgency ordinance to extend Urgency Ordinance No. 1569 until the effective date of the new ordinance to ensure there is no lapse in application of these permanent well permit procedures to new agricultural well applications. 

In addition to incorporating Urgency Ordinance No. 1569, staff have identified additional minor recommended changes to make at this time. 
  1. Permit Term.  Updating the Well Ordinance’s permit term (currently 120 days) to match what is currently in practice under the Urgency Ordinance (2 years).  The 120-day time period to commence drilling an approved well proved difficult over the years for property owners depending on well driller availability, particularly during droughts.  Two years has proven to be a reasonable period for most permittees to commence and complete construction of a new well.
  2. Application Term.  Adding a time period to the validity of well permit applications.  The application term will be one (1) year with an option to extend the period for an additional 180 days. The intent of this change is to facilitate more timely review and avoid having numerous open well applications years after permit applications are initially submitted.  This will prevent there being applications in the queue that are "stale" and have been awaiting responses from applicants for extended periods.  
  3. Appeal Process.  Changing the appeal process such that a permit appeal will first go to the Planning Commission to be heard rather than the Board of Supervisors.  The Planning Commission’s decision can then be appealed to the Board of Supervisors.  This will track the appeal process used for other types of Planning approvals.
  4. Pumping Capacity Verification.  Adding a requirement that new agricultural wells within the Focus Areas must provide a written report to YCEH stating the pumping capacity of the well after the pump is installed prior to final approval.
More changes will be identified once the Department of Water Resources (DWR) completes its updates to Bulletin 74, which was last updated in 1991.  The updated Bulletin 74 will be submitted to the State Water Resources Control Board for adoption into a Statewide Model Ordinance.  The County’s last communication with DWR indicates that the final standards will be published in the Summer of 2026. YCEH staff will be working with LSCE over the next year to make these recommended changes to the ordinance.

More information regarding Urgency Ordinance No. 1569 and the history of the EO well permitting procedures can be found in the October 22, 2024, minute order packet. (Attachment H)

Collaborations (including Board advisory groups and external partner agencies)

Staff has collaborated with the Yolo Subbasin Groundwater Agency, the Office of County Counsel, and the County Administrator’s Office.

Fiscal Impact

No Fiscal Impact

Fiscal Impact (Expenditure)

Total cost of recommended action:
$    0
Amount budgeted for expenditure:
$    0
Additional expenditure authority needed:
$    0
On-going commitment (annual cost):
$   

Source of Funds for this Expenditure

$0

Attachments

Form Review

Inbox Reviewed By Date
Kimberly Hood Kimberly Hood 09/26/2025 12:02 PM
Stephanie Cormier Stephanie Cormier 09/26/2025 05:00 PM
Adam Fieseler Adam Fieseler 09/28/2025 05:54 PM
County Counsel Phil Pogledich 09/30/2025 11:19 AM
Michael Webb Michael Webb 10/01/2025 10:34 AM
County Counsel Kimberly Hood 10/01/2025 05:35 PM
Berenice Espitia Berenice Espitia 10/02/2025 11:06 AM
Form Started By:
April Meneghetti
Started On:
09/12/2025 01:28 PM
Final Approval Date:
10/02/2025