The New York State Department of Environmental Conservation recently ordered the longtime Hoosick Falls Company,  Oak Mitsui Inc, and its landlord to check its plants for pollution.

Oak Mitsui has had plants in Hoosick Falls since the 1970s and is now pulling out of the area, with one plant having closed two years ago and a second that will close in January.

The plants produced copper and aluminum foils for smartphones and other electronics.

“As part of the state’s ongoing efforts to address contamination in the Hoosick Falls area, DEC continues to investigate contamination potentially emanating from former Oak Mitsui facilities,” stated DEC spokeswoman Erica Ringewald.

Both of the company’s plants are located on the Hoosic River. The pollution testing will help to determine if the facilities should be added to the state Superfund cleanup program.

The plant that is still currently open was leased by Oak Mitsui from its former owner, Honeywell International. The company’s former site that closed in 2015 is still owned by Oak Mitsui.

Honeywell International signed an agreement with the DEC last week, consenting to examine its open site for pollution, including PFOA.

Oak Mitsui signed a similar agreement with the DEC last month to examine its former facility for PFOA and other pollution.

The agreement also requires the company to turn over its records on plant operations to the DEC, specifically on how hazardous waste was handled at the facility.

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