The Boston Fire Department reports it sent hazmat crews to the MWRA's Deer Island treatment plant tonight when up to 200 gallons of toxic sulfuric acid spilled around 7:45 p.m.
BFD says the acid "overflowed from a holding tank to a containment area made for overflows" outdoors. The acid, used to help break down sewage, caused no injuries and posed no threats to the public, the department says.
BFD declared the situation under control around 9 p.m.; some fire crews remained on scene to monitor the cleanup by a company called Haz Mat Techs.