City Hall Holiday Closure

Santa Ana City Hall is closed December 25, 2025, to January 2, 2026; there is no street sweeping December 24-26 and January 1. Go here to see all service impacts.  

Delhi Groundwater

The Delhi Groundwater also named the South Basin Groundwater by Orange County Water District (OCWD), is a two-square-mile portion of the groundwater aquifer located under Irvine, Santa Ana and Tustin. This groundwater is contaminated near the surface with volatile organic compounds (VOCs) left behind from decades-old manufacturing. A community outreach meeting was held on March 29, 2023 to provide a status update on the clean-up and saftey of Santa Ana's drinking water. View the PowerPoint presentation and meeting recording below.

For more information visit OCWD South Basin website.

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