The advisory applies to Vålberg, parts of Grums municipality, Slottsbron, Segmon, and Liljedal, according to the municipality. It is in effect from 1:00 PM on Friday until the municipality announces otherwise. Water samples were taken on Friday and will be taken continuously over the weekend, an official said.
The timeline for when the water supply will be declared safe again depends on the test results, which are expected to be announced on Monday, according to officials.