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Waterbury approves $2.25M transfer to shore up sewage plant; engineers warn incinerator may need multimillion‑dollar overhaul
Summary
The Board approved a $2.25 million reallocation inside the Water Pollution Control capital fund to cover urgent incinerator repairs and preparatory design work. Officials warned that, without repairs, the plant faces more frequent unplanned shutdowns and that full replacement options could cost tens of millions.
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The Board approved a $2.25 million transfer on May 11 from the unallocated Water Pollution Control (WPC) capital fund to pay for emergency and design work at the municipal sewage plant.
Finance manager Sarah Gary explained the transfer: $750,000 will fund near‑term design, engineering and monitoring for capital projects; $1.5 million is earmarked for emergent repairs at the plant’s sludge incinerator. Officials told aldermen the incinerator is increasingly unreliable and past its useful life, producing more frequent, longer unplanned shutdowns that could force the city to haul sludge offsite at dramatically higher cost.
Engineers and finance staff outlined a staged approach: use emergency funds this summer to stabilize the incinerator, follow with a roughly $6 million stabilization package to buy an estimated 3–5 years of operational life, and then undertake a feasibility study to determine whether to repair, retrofit or replace the facility. Replacement estimates cited in committee discussion ranged widely; engineers have discussed figures in the tens of millions.
Officials said the immediate risk is fiscal: if the city must divert sludge to other incinerators or special handling plants, the per‑ton cost could rise from the current contract rate (~$85/ton for Waterbury sludge) to several hundred — or more — dollars per ton, creating very large operating cost impacts for the sewer fund and potentially raising rates.
"If the incinerator is not an option for dealing with that sludge, it would have to be hauled either out of state or to another facility," the finance director said. "That risk is in play; we could be looking at anywhere from $600 to $1,000 per ton depending on market conditions." Staff were authorized to proceed with the transfer and to prioritize emergency repairs needed before the late‑summer shutdown window.
What this means: The transfer funds near‑term work that officials say is necessary to avert a sudden plant failure. Aldermen asked for more detailed cost estimates, a timeline for capital work and clarification of contingency plans should a multiday shutdown become necessary.

