CSO Public Notification

CSO Public Notification

The City is developing a CSO web page for notifying the public of the status if its CSO activations. Please check back for progress.

Click here to view the CSO map which provides near real-time information (5-minute intervals) on CSO activation status, where they occur, how often and how long they occur.


The City’s annual CSO report is posted here. The annual report provides information on the locations of Haverhill's CSOs, a summary of CSO activations and volumes, status and progress of CSO abatement work.