Los Angeles, California (July 1, 2026) – The Los Angeles Department of Water and Power (LADWP) has issued a Boil Water Notice for a two-block area in the city’s Koreatown neighborhood following routine water quality testing that came back positive for Escherichia coli (E. coli) bacteria on Tuesday, June 30, 2026.
The boundaries for the affected area are:
- South Ardmore Avenue to the west
- South Mariposa Avenue to the east
- West 5th Street to the north
- West 6th Street to the south
LADWP urges affected customers within the boundaries to only use boiled tap water or bottled water for drinking and food preparation until further notice.
Preliminary reports from the field indicate the E. coli was found in routine water samples taken from one particular water quality testing station in Koreatown and does not affect the overall water distribution system. This Boil Water Notice is not related to the warehouse fire in Boyle Heights, and no fire-related contaminants were found in the water samples.
Out of an abundance of caution LADWP issued the Boil Water Notice while we conduct additional sample collection and testing.
Customers in the area should bring all tap water to a boil for one (1) minute and let it cool before use. This applies to water for drinking, cooking, brushing teeth, making ice cubes, and food preparation such as washing produce and for cooking. Customers should follow these important health and safety instructions while LADWP conducts further testing to restore water quality. Once the Boil Water Notice can be lifted, LADWP will immediately inform customers.
For further information and updates and the full Boil Water Notice visit www.LADWP.com/WaterQuality. For additional questions about water quality or to request water quality testing at your home, customers can call 1-800-DIAL-DWP.
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