How is wastewater being collected at the derailment site?

EPA is ensuring that water coming into contact with the derailment site does not runoff into the surrounding area. Wastewater is generated after rain falls on a contaminated area, and from cleaning and washing trucks before they leave the derailment site. Wastewater is collected with pumps and pipes, and temporarily stored in tanks before being shipped off-site for disposal. Much of this collected water has little or no contamination, but because it comes from the derailment site, it’s treated as contaminated.