Every year a certified backflow assembly tester is contracted at a set rate to test every participant’s backflow device. To participate, call the utility’s backflow line mentioned above.

Backflow is essentially water that reverses direction, coming from private plumbing back into the city’s delivery system, thus creating potential health hazards. A selection of valves can ...

Utilities staff with the town of Berthoud discovered Monday that a backflow of untreated water went into the town’s potable water system at a residential connection recently, but after tests … ...

Ald. Ray Lopez (15th) and five other Southwest Side councilmembers issued a letter to Chicago Mayor Brandon Johnson on the subject of storm backflow into homes.