Haverhill CSO alert, Feb. 11, 2018

Please be advised the City of Haverhill experience CSO activation that occurred February 11, 2018, due to rainfall and high flow. The following CSO were activated based upon current CSO flow meters.


Attached is a GIS map that represent the approximately location for all current active CSO for your reference.



Center Barrel NPDES # 021F

South Webster Street NPDES # 039


Treatment Plant Information

Max flow to the treatment plant 50.92MGD

2  Primary tanks on line

Aeration tanks on line

3 Secondary clarifiers on line


Received  0.87 inches of rain