When water delivered from the tap has been contaminated resulting in a boil advisory, water must be brought to a rolling boil for 3 minutes.
This is necessary even if there is a filtering process for the tap water and must be done for all the following situations as recommended by the CDC: Drinking (humans and pets), brushing teeth, making ice cubes, food preparation, and handwashing dishes (wash dishes as normal and then add 1 teaspoon of bleach per gallon of water to separate basin and soak the rinsed dishes for at least one minute in the bleach solution. Allow to air dry completely before using.)
In most cases (unless specified by the local public health officials), unboiled water may be used in the following situations with extreme caution to not ingest: Washing hands, bathing and showering (small children and infants should have sponge baths to avoid accidental ingestion of water), laundry, cleaning surfaces (with bleach added)and running dishwashers if the final rinse temperature reaches 150 degrees or there is sanitizing setting.
Do not use unboiled water from appliances such as refrigerator dispensers. Preferably, use bottled water if possible.
with information from https://www.khou.com/article/news/health/what-to-do-when-a-boil-water-advisory-is-issued/285-a8cfda0f-b243-4420-92c9-49e602961161
