Public Health Warnings

Effective July 6, 2022, the Newburyport Board of Health will issue Public Health Warnings for combined sewage overflows (CSOs) that occur within the Merrimack River pursuant to 314 CMR 16.09. All warnings issued will be posted here as well as at public access points to the water. 

During the summer bathing season, the Health Department also conducts weekly water quality tests at the City's beaches. For more information, please click here


The City of Newburyport Health Department has issued a Public Health Warning due to a CSO that occurred at the Lowell Wastewater Utility and its diversion structures. The discharge concluded on November 30th and concluded at 11:25pm.

The Newburyport Health Department recommends that the public, including pets, avoid contact with the Merrimack River for 48 hours following a sewage discharge or overflow due to the increased health risks from bacteria and other pollutants associated with urban stormwater runoff and discharges of untreated or partially treated wastewater.

For more information on beach water quality testing, please visit

For more information on shellfish closures, please visit