Kern Groundwater Oversight Returned to DWR in December 2025: What Olde Stockdale Owners Should Know

OLDE STOCKDALE, Kern County — November 10, 2026. Kern County’s groundwater-management rules underwent a significant administrative change in late 2025. The California State Water Resources Control Board confirms that it returned oversight of the Kern County Subbasin to the California Department of Water Resources (DWR) through a letter dated December 8, 2025.

Why the state became involved

DWR determined in March 2023 that the Kern subbasin’s previously submitted Groundwater Sustainability Plans did not adequately address state requirements. The finding referred the subbasin to the State Water Board for possible state intervention under the Sustainable Groundwater Management Act (SGMA). Local Groundwater Sustainability Agencies continued revising their plans, and the State Water Board held a public process that extended into September 2025.

What changed in 2025

On September 17, 2025, the Board decided that probationary designation was unnecessary, subject to review of final local plans. Later, board staff concluded that three priority deficiencies had been adequately addressed and formally returned oversight to DWR on December 8. That is a change in plan oversight, not a declaration that groundwater extraction has no limits or that the region no longer faces depletion risks.

Why Olde Stockdale residents should distinguish agencies

The subbasin is managed through multiple Groundwater Sustainability Agencies; their boundaries can differ from a local census-designated place or from a small mutual drinking-water company’s service territory. A property owner should identify the actual groundwater agency and utility associated with the parcel, rather than assume every Olde Stockdale address falls under a single office.

What the state decision does not prove

Returning oversight to DWR does not establish that any particular domestic well is producing enough water, that contaminants are below drinking-water limits, or that a household’s tariff or assessment was reduced. Those questions require water-system testing, current agency rules and property-specific data. Interested residents can review the state’s September 2025 decision, December letter and current plans through the official web page.

Primary source: California State Water Resources Control Board, Kern County Subbasin SGMA oversight history, last updated December 10, 2025. Reviewed November 10, 2026.

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