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Boil-water restrictions lifted for remaining homes after Mountain View water-main contamination

City of Mountain View · May 27, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Mayor Emily Ann Ramos said the city declared a state of emergency after an April 24 contractor-related incident contaminated a water main that initially affected 67 homes north of Cuesta Park; as of the State of the City address, boil-water restrictions had been lifted for the remaining 21 homes following negative bacteria tests and State Water Board approval.

Mayor Emily Ann Ramos provided an update May 19 on the city-declared emergency following an April 24 incident in which cement slurry from a private contractor came into contact with a live water main north of Cuesta Park.

"So, last month we declared a state of emergency for the Cuesta water main contamination incident, which originally left 67 homes north of Cuesta Park originally affected them," Ramos said. She added that, "as of this evening on day 26 of the emergency response, the boil water restrictions have now been lifted for the remaining 21 homes."

Ramos said the lift of restrictions depended on negative bacteria test results and approval from the State Water Board. She emphasized that outside the affected area the city's water remained safe for drinking and other uses. The mayor apologized to affected families for the disruption and uncertainty caused by the incident and said the city would continue working to provide safe water services.

At the State of the City address, the mayor described the incident as involving a private contractor hired by the city that resulted in cement slurry contacting a live water main; she did not announce any formal findings of fault or any enforcement action. City officials have not provided a timeline for any repairs beyond the testing and clearance process described at the event.