A chemical spill at an Upton rail yard has been cleaned up, but some residents say concerns about safety at the site linger.
On Dec. 18, a faulty valve caused approximately 100 gallons of styrene – a highly flammable chemical used to make Styrofoam – to spill at the Grafton & Upton Railroad, located at 25 Maple Ave. Local and state public safety and environmental workers responded to the scene, and the town’s nearby wastewater treatment plant was evacuated.
Upton Fire Chief Aaron Goodale said the spill occurred on land protected by an impermeable barrier, and the tainted gravel and topsoil has been removed. He said his department received complaints about the smell of the chemical from residents for a couple of days. Full story for BostonGlobe.com subscribers.
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