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Watertown City Council considers $35 million ‘biosolid’ project

Aug 22, 2022

WATERTOWN — The City Council has informally agreed to proceed with a $35 million Phase II sludge project at the city’s wastewater treatment plant.

For a decade, the city has been working toward getting to this point to overhaul the plant and turn its sludge — what is called “biosolid” in the industry — into methane gas.

In 2016, the city used $9.3 million in state funding to shut down the plant’s incinerator and complete the first phase of the biosolid project.


And now GHD Consulting Engineers LLC, Cazenovia, the engineering company that’s been working on the project, recommends moving forward with the second phase to modify the city’s biosolid.

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