EPA launching contamination clean-up to save Des Moines drinking water
The Environmental Protection Agency is launching clean-up efforts in Des Moines for a dangerous chemical known to cause cancer that is threatening the city's drinking water.
The chemical Trichloroethylene is a known carcinogen; studies have linked it to liver and kidney cancers if consumed. Currently, it's contaminating groundwater near the Raccoon River at Fleur Drive and Bell.
The EPA declared the area a superfund site on Tuesday. The area is called Lot 46 Valley Gardens, and it's been added to the EPA's National Priority List for clean-up.
The Iowa Department of Natural Resources has been monitoring the site since 2004, but recently, the contaminated water started migrating toward the Raccoon River, where Des Moines Water Works sources drinking water for the city.
"It is not currently a threat, we're not seeing TCE in the drinking water, the water is perfectly safe, but it's moving off of the site and in time, it would become an issue for the public water supply," Water Works CEO Ted Corrigan said.
The EPA said this contaminant is not naturally occurring and must be introduced to an area. Corrigan said at Lot 46 and a number of other sites around Des Moines, it is believed the TCE contamination is the result of decades of industrial businesses dumping solvents containing TCE, like paint removers and degreasers, onto the land, allowing it to seep into water underground.
According to the Agency for Toxic Substances and Disease Registry, TCE has been discovered at 1,051 of the 1,854 sites on the National Priority List. Last year, the Biden administration proposed a ban on the chemical.
To prevent it from spreading into Des Moines' drinking supply, the EPA will investigate the site to come up with a solution. The project could take years to complete, but since the EPA is handling the effort, it will be funded by the federal government, not local tax dollars.