Public Water Supply District No. 3 of Franklin County has issued a precautionary boil water advisory impacting about 200 homes in the local area.

The advisory was issued for areas near Highway 100 in eastern Franklin County including Thornton Road, the Las Brisas Subdivision, Victoria Gardens Mobile Home Park and the Eagles View Subdivision.

The advisory is expected to be lifted following water sampling and testing by around 2 p.m. Friday afternoon.

Until then, people in the impacted area are advised to boil water vigorously for three minutes prior to use and use only boiled water for drinking, cooking and brushing teeth.

Dishes and food surfaces that would typically come in contact with tap water should be cleaned using water mixed with household bleach at a rate of one teaspoon of bleach per gallon of water.

Water district officials said the advisory was issued because of emergency water system or water main repairs that caused pressure to drop to less than 20 psi.

For more information, people may contact the water district office at 636-742-5300.