The Philomath Public Works Department reported a loss of water pressure in the city’s distribution system due to a break in the water line.
City sources said residents will be informed when tests show no bacteria and the boiling of water is no longer needed.
Officials anticipate resolving the problem by the end of Thursday.
Bacteria that could possibly be present in the water supply can make people sick and are a particular concern for people with weakened immune systems, including infants and young children.
• Bring all water to a boil, let it boil for one full 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.
A release from the city states that potentially harmful bacteria include fecal coliforms and E. coli which are bacteria whose presence indicates that the water may be contaminated with human or animal wastes, the city reported.
Microbes in these wastes can cause diarrhea, cramps, nausea, headaches or other symptoms.
People at increased risk should seek advice about drinking water from their health-care providers.