Combined Sewer Overflow (CSO) 

Combined Sewer Overflow (CSO) 

January 26, 2023 

This is a Public Health Warning issued by the West Newbury Board of Health. The Board of Health has been notified that one or more of the upstream sewage treatment facilities have had a combined sewer overflow release into the Merrimack River.  It is recommended that the public avoid contact with said waters for a minimum of 48 hours after the sewage discharge or after the end of the rainstorm.  Information about the release can be obtained by going to the CSO tab on the Board of Health’s webpage at www.wnewbury.org/board-health