"Lead can enter drinking water through the corrosion of lead or lead-contaminated water service lines, fixtures (such as faucets), or plumbing.
Columbus has a very effective corrosion control treatment process that protects pipes from corrosion. The water chemistry (pH) is adjusted and zinc orthophosphate is added. This process creates a coating in the pipes to serve as a barrier, preventing conditions that can cause lead to leach into the water. The most recent sample results were less than 1.3 parts per billion of lead in water.
