California American Water Issues Boil Water Notice for Customers in its San Diego District

San Diego (August 25, 2023) – California American Water has issued an updated Boil Water Advisory for customers that reside in the City of Imperial Beach, Coronado (south of Fiddlers Cove) and portions of San Diego and Chula Vista due to positive E. Coli results found in the drinking water.  The California Division of Drinking Water in conjunction with California American Water, is advising impacted California American Water customers that reside in the above cities to use boiled tap water or bottled water for drinking and cooking purposes as a safety precaution.

California American Water customers in Imperial Beach and Coronado (south of Fiddlers Cove) are advised to not drink water without boiling it first.  The California Division of Drinking Water recommends bringing all water to a boil, let it boil for three (3) minutes, and let it cool before using, or use bottled water. Boiled or bottled water should be used for drinking and food preparation until further notice. Boiling kills bacteria and other organisms in the water.  This is the preferred method to assure that the water is safe to drink.  Alternatively, you may add eight drops of unscented, household bleach to one gallon of water and let sit for 30 minutes.

California American Water customers are also asked to immediately discontinue any non-essential water usage.  This includes all outdoor irrigation.

Commercial customers including restaurants, markets and hotels that are impacted and can find additional information about restrictions on County of San Diego’s Environmental Health website:

For questions about other uses of tap water, such as bathing and dishwashing, please follow CDC guidance:

For updated information, customers can visit California American Water’s website at, under the Alerts Notifications section and on the company’s social media channels.

Please be advised that the company is doing all it can to make sure water is of the highest quality and anticipate resolving the problem within 48-72 hours.  California American Water will provide information as to when the advisory is lifted.

California American Water, a subsidiary of American Water (NYSE: AWK), provides high-quality and reliable water and wastewater services to more than 725,000 people. Information regarding California American Water’s service areas can be found on the company’s website

Media Contacts

Brian Barreto

Southern California External Affairs Manager