The Department of Natural Resources and Environmental Control (DNREC) Remediation Section (RS) has adopted a plan regarding the clean-up of the 522 S. Market Street [DE-1723] Site (Site) located in Wilmington. Prior to the 1940s, the Site was undeveloped. The Site historically was part of a larger automobile salvage yard in the 1940s and 1950s. Between the 1970s and 1990s, the Site operated as a restaurant. In the 1990s, the Site was utilized for automobile repair, storage, and sales. Currently, the Site is an empty lot.

The Site will be subject to the following key remedial actions: the submittal of a Remedial Action Work Plan which specifies the methods to be used to remediate the site including the removal and disposal of impacted soils to meet DNREC Hazardous Substance Cleanup Act (HSCA) standards, development and compliance with a Long-Term Stewardship (LTS) Plan detailing groundwater monitoring requirements, development and compliance with the Contaminated Materials Management Plan (CMMP), the recording of an Environmental Covenant restricting groundwater withdrawal and requiring compliance with the CMMP and LTS plan, and the submittal of a Remedial Action Completion Report.

DNREC issued a public notice of the Proposed Plan of Remedial Action (Proposed Plan) for the 522 S. Market Street Site on March 11, 2026. 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:

Gina Marinacci, 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

Related Topics:  clean-up, final plan, public notice, remediation, waste and hazardous substances