Combined Sewer Overflow Projects
CSO Overview
One major type of on-going construction, and the reason you see streets around the City undergoing a
As required by the US Environmental Protection Agency (EPA) and the New Hampshire Department of Environmental Services (DES), the City is implementing the elimination of our CSOs by separating the sanitary wastewater system from the stormwater system under a schedule which will have all CSOs eliminated by 2020.
The City is incorporating this work into other infrastructure projects in order to cost effectively address the City’s needs for the future.
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Current CSO Projects
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CSO Project No.10
One major type of on-going construction, and the reason you see streets around the City undergoing a transformation, is that of our Combined Sewer Overflow (CSO) projects.
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CSO Project No. 11
The City is incorporating this work into other infrastructure projects in order to cost effectively address the City’s needs for the future.
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CSO Project No. 12
Learn more about Combined Sewer Overflow (CSO) Project, No. 12 which will affect the following streets: Avon Avenue, Ora Avenue, Freeman Avenue, Myra Avenue, Bomhower Street, Mechanic Street, Terrace View Condo’s, and Mascoma Street.