Water Quality Reports 

Since 1990, California water utilities have been providing an annual Water Quality Report to their customers by July 1st of every year. This year's report has been prepared in compliance with regulations called for in the 1996 reauthorization of the Safe Drinking Water Act.  Once again TCWD is proud to issue a Water Quality Report that confirms that the drinking water we serve to customers meets or exceeds all quality standards required by federal and state regulatory agencies. Through drinking water quality testing programs carried out by TCWD’s licensed water professionals, our customers’ drinking water is constantly monitored from source to tap for constituents that are both regulated and unregulated. TCWD encourages its customers to review the Annual Water Quality Report as it a valuable resource to better understand TCWD’s water sources and their quality profiles as well as what the District does to keep your drinking water safe and reliable. 

TCWD no longer mails hardcopies of the Water Quality Report to customers. If you would like a hardcopy of the current Water Quality Report, please feel free to stop by the District Administrative Facility or contact Customer Service at (949) 858-0277.

TCWD Water Quality Report - 2025

TCWD Watershed Sanitary Survey - 2018

PFAS Information

In April 2024, the U.S. Environmental Protection Agency issued a new national drinking water standard targeting PFAS (per- and polyfluoroalkyl substances), a large group of manufactured chemicals prevalent in many everyday products. The presence of PFAS in certain water supplies and the new EPA standard have received extensive media coverage. For more information regarding PFAS, please reference the following fact sheets and the additional resources referenced within.

PFAS Information

Frequently Asked Questions About PFAS, PFOA and PFOS

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