The Fire Department responded at about 7 p.m. to a report of a strong chemical odor along the Norwalk River, Deputy Fire Chief Edward Prescott said.
An investigation by the Engine Company led to the Oyster Bend Marina at 23 Platt St. in East Norwalk, Prescott said. Firefighters found the houseboat resting on the bottom of the river, surrounded by a red substance thought to be gasoline or a fuel oil, he said.
The spill 30- to 50-gallon spill was confined within the area of the boat due to the icy conditions in the Norwalk River, Prescott said.
The property owner and vessel owner were ordered to contract with an environmental contractor to clean the spill and place booms around the houseboat until it could be salvaged, Prescott said. Cleanup crews were on the scene Saturday afternoon.
Inspectors from the state Department of Energy and Environmental Protection and the Coast Guard along with the Norwalk Marine Police responded to the scene of the sunken houseboat.
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