Thomas A. Crosson, senior director of strategic communications with Norfolk Southern, said the dam area lies a mile and a half away from the derailment site, and that the derailment site remains contained.
Sens. Bob Casey and John Fetterman along with Rep. Chris Deluzio sent a letter to Norfolk Southern CEO, Alan Shaw, urging the railroad company to help Darlington Township residents.
The National Transportation Safety Board has said the crew operating the Norfolk Southern train that derailed outside East Palestine, Ohio, near the Pennsylvania border on Feb. 3 got a warning from such a detector but couldn't stop the train before more than three dozen cars came off the tracks and caught fire.