Turlock Irrigation District

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Allocation

The Turlock Irrigation District is a member of the West Turlock Subbasin Groundwater Sustainability Agency, and together with the City of Turlock, they are the two largest members making up over 80 percent of the subbasin's proportional funding.
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Allocation Documents

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April 14, 2026

March demand surged (highest March flow in 18 years) and may stay strong in April. Snowpack is ~30% of normal; Corps concurrence allowed Don Pedro flood-space encroachment with no flood-control releases. Series Main TCC pilot cut spills sharply (88% same-day orders; 96% customer-placed online). Board unanimously approved the consent calendar and extended the Don Pedro Operating Agreement 3 years.

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March 31, 2026

Snowpack is 29% of average and April–July runoff is well below normal; the Board discussed potentially bringing replenishment-water discussion earlier than June (possibly May). Irrigation planning uses 542,000 AF from Don Pedro. The Board approved a 130 MW solar + 260 MWh battery interconnection; staff said interconnection costs are ~$7M paid by Hondeville.

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March 17, 2026

Hydrology staff reported snowpack near 50% of normal with peak runoff shifting into March, prompting coordination with the Army Corps on possible flood-space encroachment to retain additional water. With Director Macedo absent, the Board adopted the updated 2025 Agricultural Water Management Plan and the 2026–2030 Strategic Plan by 4-0 votes.

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March 3, 2026

The board approved the 2026 irrigation season at 48 inches per acre, running March 12 through October 28, with water orders opening March 11. Under the existing multi-year rate schedule, the Tier 1 volumetric rate is now $3.23/acre-foot for the first 48 inches (year two), and replenishment water above that is available at $20/acre-foot. Out-of-district replenishment water within the groundwater subbasin was also approved at $50/acre-foot.

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February 17, 2026

The 2026 irrigation season is set to begin March 12 with a full 48-inch allocation and no cap for in-district growers, with water ordering opening March 11. Hydrology conditions are strong, with significant precipitation forecast to bring snowpack to near-average levels. Staff also reported the Ceres Main canal automated control pilot is ready to go live at season start, with a grower workshop scheduled February 25.

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