In a memo sent out late Friday, the City of Houston said water inside the Bob Lanier Public Works building “is not safe for drinking.”

The city says water testing earlier this week discovered unacceptable levels of bacteria in the water inside the 27-story downtown building at 611 Walker Street.

In a memo to employees, the interim director of the General Services Department said the city is currently disinfecting pipes inside the building and flushing the entire plumbing system.

However, until testing verifies the treatment killed the bacteria, the city warns no one should drink from faucets inside the building.

The water testing followed the discovery of high lead levels in drinking water at Houston City Hall and inside the City Hall Annex building by KHOU 11 Investigates.

That water testing found no problems with lead inside 611 Walker, the Julia Ideson Building, or inside the city’s Central Library downtown.