Amended Proposed Plan of Remedial Action for the Delaware Air National Guard Site

Division of Waste and Hazardous Substances
Start Date: July 3, 2019
End Date: July 29, 2019

The Department invites public comment on a proposal to clean-up IRP Site 4B (Soil) of the Delaware Air National Guard Site located in New Castle. The Site is an active military base and a soil vapor extraction system was previously required to clean-up contaminated soil at IRP Site 4B.  The Amended Proposed Plan reflects the correct operable unit boundary for IRP Site 4B (Soil).   

Details of the Amended Proposed Plan are available at the office of DNREC-Remediation Section, formerly DNREC-SIRS, at 391 Lukens Drive, New Castle, DE, 19720 or online at:

The comment period ends on July 29, 2019. For additional information, please contact Stephanie Gordon, Project Manager at (302) 395-2600 or via email at

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