An autopsy has determined that a St. Louis County boy found dead in the Meramec River drowned.
The body of 12-year-old Christopher Marks of Affton was recovered Tuesday afternoon about six miles downstream from where a search began. He had been missing since Sunday while on an outing with relatives in a conservation area.
As of 1:30 p.m., the boil order that had been in effect for 8,000 Missouri American Water customers in south St. Louis County was lifted. The utility is recommending that customers in the affected area flush their plumbing by letting faucets run for a few minutes.
The affected ZIP codes were:
St. Louis County portions of 63026
St. Louis County portions of 63049
Portions of 63088 that are south of the Meramec River.