Proposed Plan of Remedial Action for 16519 South Dupont Highway Site (DE-1768)

Division of Waste and Hazardous Substances

Published: May 22, 2022
Comments Due: June 13, 2022

The Department invites public comment on a proposal to clean-up 16519 South Dupont Highway Site (DE-1768) located at 16519 South Dupont Highway in Harrington. The Site operated as a filling station, an automotive parts store and used car/truck lot

The Site’s remedial actions will include the recording of an environmental covenant which will place limitations on groundwater withdrawal and the disturbance of the building slab. A Contaminated Materials Management Plan will be prepared to provide guidance to safely handle any potentially impacted groundwater and detail the asbestos containing materials abatement program to be followed. Finally, a Long-term Stewardship Plan will be prepared to ensure the integrity of the remedy is maintained.

Details of the Proposed Plan are available online at:

The comment period ends on June 13, 2022. For additional information, please contact John Costa, Project Manager at (302) 395-2600 or via email at