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NORTH TONAWANDA – The state Department of Environmental Conservation announced Friday that cleanup of contaminated sediment will start during October in storm sewers around the former Durez chemical plant site on Walck Road.

Glen Springs Holdings will handle the project. It iss a subsidiary of Occidental Chemical Corp., which owns the site. Work will focus on vacuuming clean the Pettit Creek Flume, a sewer that runs from the central part of the city and discharges into the Little Niagara River.

The main work area will run about 7,300 feet, from the corner of Walck and Nash roads to the discharge in the Pettit Creek Cove, an artificial bay in the riverbank. Also, 448 feet of storm sewer on Nash Road between Walck Road and Duane Drive will be lined to prevent stormwater and sediment from leaking in.

Occidental owned the former Durez Plastics and Chemical Co., which closed in 1996 and was demolished in 1997. The site is now a vacant field, maintained as a remediated hazardous waste site.