This is an urgent notification from California American Water. A Boil Water Advisory has been issued for your service area as of 9:00PM on 11/07/2026 due to an IMPORTANT ABOUT YOUR DRINKING WATER WARNING Cal Am – West San Martin (Zone 1) water is contaminated with E. coli BOIL YOUR WATER BEFORE USING E. coli bacteria were found in the water supply on November, 7, 2026. These bacteria can make you sick, and are a particular concern for people with weakened immune systems. What should I do? DO NOT DRINK THE WATER WITHOUT BOILING IT FIRST. Bring all water to a boil, let it boil for one minute, and let it cool before using, or use bottled water. Boiled or bottled water should be used for drinking, making ice, brushing teeth, washing dishes, and food preparation until further notice. Boiling kills bacteria and other organisms in the water. E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Human pathogens in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a greater health risk for infants, young children, the elderly, and people with severely-compromised immune systems. The symptoms above are not caused only by organisms in drinking water. If you experience any of these symptoms and they persist, you may want to seek medical advice. People with severely compromised immune systems, infants, and some elderly may be at increased risk. These people should seek advice about drinking water from their health care providers. General guidelines on ways to lessen the risk of infection by microbes are available from U.S. EPA’s Safe Drinking Water Hotline at 1(800) 426-4791. What happened? What is being done? Bacterial contamination can occur when increased run-off enters the drinking water source (for example, following heavy rains). It can also happen due to a break in the distribution system (pipes) or a failure in the water treatment process. State Water Resources Control Board October 5, 2021 The following corrective actions will be taken: Flushing the distribution system within Zone 1 Chlorinating the system as soon as feasible We will inform you when tests show no bacteria and you no longer need to boil your water. We anticipate resolving the problem within 6 days (November 13, 2026). For more information, please contact Mike Magretto at 831-646-3220 or Shilpa Singh at 916-207-2685 or Shilpa.Singh@amwater.com Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this public notice in a public place or distributing copies by hand or mail. Secondary Notification Requirements Upon receipt of notification from a person operating a public water system, the following notification must be given within 10 days Health and Safety Code Section 116450(g): SCHOOLS: Must notify school employees, students, and parents (if the students are minors). RESIDENTIAL RENTAL PROPERTY OWNERS OR MANAGERS (including nursing homes and care facilities): Must notify tenants. BUSINESS PROPERTY OWNERS, MANAGERS, OR OPERATORS: Must notify employees of businesses located on the property. This notice is being sent to you by Cal Am – West San Martin. State Water System ID#: CA4300543 Date distributed: 11/7/2026. You reside in the affected area. This advisor1y is expected to be in effect for apporximately 144 hours.
Any water to be used for drinking or cooking should be brought to a rolling boil for 3 minutes. Water is OK for bathing, washing, and other common uses. You will receive another notification should additional action be required or conditions change, or when normal water use may be resumed.
If you are a landlord and water servide is in your name, please inform your tenants so they are aware of this impact to their water service. For more information or to see a map of the affected area please go to Californiaamwater.com and click on 'Alerts'.
We apologize for the inconvenience and appriciate your patience and understanding as we work to resove the issue.
