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Final Plan of Remedial Action for 55 Loockerman Plaza Site (DE-1859)



Division of Waste and Hazardous Substances

Published: Jan. 21, 2026

Encuentre la versión en español en de.gov/dnrecavisos

DNREC Notice No. WHS20260024
Non-Discrimination Policy

The Department of Natural Resources and Environmental Control (DNREC) Remediation Section(RS) has adopted a plan regarding the clean-up of the 55 Loockerman Plaza Site (DE-1859) (Site) located in Dover. The Site was developed with a parking lot in the early 1950s and has been used as a post office since 1964. The site at one point contained a 500-gallon heating oil Underground Storage Tank (UST), a 12,000-gallon heating oil UST, and a 4,000-gallon unleaded gasoline UST, all of which were removed in 1994. The Site requires a restriction on use of groundwater at the Site, capping of contaminated soils, and long-term monitoring to ensure elimination of exposure to existing Site soils and groundwater for future Site users.

DNREC issued a public notice of the Proposed Plan of Remedial Action (Proposed Plan) for the 55 Loockerman Plaza Site on December 24, 2025. There were no comments or questions from the public regarding the Proposed Plan.

Details of the Final Plan of Remedial Action are available online at den.dnrec.delaware.gov.

For additional information, please contact:

Bill Duy, Project Manager
DNREC- Division of Waste and Hazardous Substances
Remediation Section
391 Lukens Drive, New Castle, DE 19720
DNREC_WHS_REMEDIATIONINBOX@delaware.gov
302-395-2600




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