The Roswell Water Utility has a comprehensive Corrosion Control Program to help prevent plumbing materials such as metals from breaking down into drinking water. In order to prevent lead from dissolving into water from lead service lines/laterals or home plumbing, Roswell adjusts the water’s chemistry at the treatment plant. This process is known as corrosion control. We sample water at homes considered to be high risk in order to ensure our corrosion control remains effective. Although corrosion control can reduce risks, the best way to assure your home is safe from lead exposure through water is to remove all of the potential sources of lead.
Because of low levels of lead and copper historically found in the service area (and an associated low level of risk for lead and copper contamination), the City of Roswell is required to submit samples collected at customer taps to the state only once every three years. The latest round of sampling was 2022. The next sampling will be 2025.