WASHINGTON (WUSA9) -- The National Park Service will collect more groundwater data before moving forward with a plan to address risks associated with exposure to contaminants at the old Kenilworth Park Landfill site.
The site is located in the Kenilworth Park and Aquatic Gardens (Park) on the east side of the Anacostia River. Officials say it used to be a D.C.-operated municipal landfill from 1942 to 1970.
In the late 1990s, NPS started an extensive environmental investigation to identify potential risks to humans and the environment and to evaluate potential remedies to address identified risks. NPS completed its investigation and identified a "preferred alternative" to address risks -- a 24-inch low-permeability cap, which would prevent exposure to contaminants within the landfill and prevent surface water from infiltrating the landfill.
Officials say the NPS also concluded that additional groundwater data should be collected to ensure that contaminants are not being transported from the landfill to the Anacostia River, Kenilworth Marsh, and Watts Branch. The data will be collected later this year, according to officials, to help reevaluate whether the Anacostia River and adjacent surface water bodies may be at risk from contaminants disposed in the landfill.
NPS has decided to hold off on selecting a final remedy for the landfill until more groundwater data are available. Once it has collected and analyzed this data, the NPS will reach out to the public for comments again, say officials.