Final Plan of Remedial Action for 215-219 N Tatnall Street Site (DE-1808)

Division of Waste and Hazardous Substances

Published: Jan. 7, 2024

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DNREC Notice No. WHS20240009

The Department has adopted a plan regarding the clean-up of the 215-219 N Tatnall Street Site located in Wilmington. The Site is currently undeveloped, but previously contained rowhouses. The Site requires a restriction on use of groundwater at the Site to ensure elimination of exposure to existing Site groundwater for future Site users and compliance with a Contaminated Materials Management Plan.

DNREC issued a public notice of the Proposed Plan for the 215-219 N Tatnall Street Site on December 3, 2023. There were no comments or questions from the public regarding the Proposed Plan. Details of the Final Plan are available online at:

For additional information, please contact Bill Duy, Project Manager at (302) 395-2600 or via email at