UPDATE: 9/25/13, 5:10 p.m. PT
In a release today, the Washington State Department of Health has lifted the boil water advisory for residents of southwest King County, specifically Des Moines and Normandy Park, saying, "Lab tests show the water now meets safe drinking water standards."
The statement also says that there have been no reported illnesses linked to the water system, which was found to have potentially harmful E. coli bacteria during a routine water quality test earlier this week.
Customers with questions about their water quality can call the water district at 206.878.7210.