City of Laredo Issues Precautionary Boil Water Notice for Jefferson Water Treatment Plant Service Area
Written by Post Public Information Representative, May 22, 2026, 0 Comments

Courtesy Noraida Negron,
LAREDO, Texas – The City of Laredo has issued a precautionary boil water notice for customers served by the Jefferson Water Treatment Plant service area following confirmation of bacteriological contamination identified at a specific sampling location within the distribution system.
Although the boil water notice applies to customers within the Jefferson Water Treatment Plant service area, current operational data and additional sampling indicate the issue appears to be isolated to a limited area within the distribution system. At this time, there is no evidence of widespread contamination throughout the Jefferson service area or any failure of the City’s water treatment operations.

The boil water notice is being issued in accordance with regulatory requirements established by the Texas Commission on Environmental Quality (TCEQ) while additional sampling, flushing, and operational response measures continue.
Water treatment operations at the Jefferson Water Treatment Plant continue functioning normally, system pressure remains stable, and disinfectant residual levels throughout the service area remain within operational standards.
Mayor Dr. Victor D. Treviño has also issued a precautionary local emergency declaration to support continued public health protection efforts, operational coordination, and emergency response flexibility associated with the boil water notice. The declaration is precautionary in nature and does not indicate a failure of the City’s water treatment system or a widespread loss of water service.

“The health and safety of our residents remains our highest priority,” said Mayor Dr. Victor D. Treviño. “While current information indicates this issue appears isolated, the City is taking every precaution necessary to protect public health and restore full water quality as quickly as possible. Our Utilities Department and emergency response teams continue working around the clock alongside state partners while additional testing and monitoring efforts remain ongoing.”
Upon receiving the laboratory results, Utilities Department personnel immediately initiated response protocols, including:
Isolating the suspected service connection,
Removing the associated meter from service,
Conducting additional bacteriological sampling throughout the affected service area,
Initiating flushing operations,
Verifying system pressure and disinfectant residuals, and
Expanding monitoring efforts throughout the Jefferson Water Treatment Plant distribution system.
The City is also utilizing approved accelerated sampling and laboratory testing procedures, in coordination with TCEQ requirements, to help obtain confirmatory results as quickly as possible while maintaining all public health and regulatory standards.



