Yes, you can drink the tap water in New Haven because the City’s water utility treats the water to make it potable and safe for consumption before it’s distributed to homes and businesses.
Most of the City’s water is sourced from surface water, but just over one-fifth of the New Haven water supply comes from groundwater (underground) supplies.
Regardless of where the water in New Haven comes from, it undergoes the same disinfection and treatment process at one of several water treatment plants, including the Whitney Water Purification Facility.
The City of New Haven tap water is managed by the New Haven Regional Water Authority (RWA) and regulated by the Environmental Protection Agency (EPA) and the Connecticut Department of Public Health.
The most recent Water Quality Report for New Haven is the 2022 Report, containing data from January to December 2022.
The Report shows that the City met regulatory standards for all the contaminants detected in the public water supply. That means that no contaminants were detected in concentrations higher than the EPA legal limit.