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Delaware

Hazardous Waste Corrective Action

Agency Delaware Department of Natural Resources and Environmental Control

The Delaware Department of Natural Resources and Environmental Control (DNREC) says Delaware is one of the states authorized to implement its own Resource Conservation and Recovery Act (RCRA) Corrective Action Program, to work with hazardous waste facilities in investigating and cleaning up hazardous releases. DNREC's page says corrective action is required under the federal RCRA for facilities that treat, store or dispose of hazardous wastes, and that the Act requires those facilities to investigate and clean up releases of hazardous waste or constituents in soil, groundwater, surface water and air. DNREC's Remediation Section administers the program.

In a Phase I ESA

This is the Delaware program for cleanups at hazardous waste facilities. It sits beside the federal corrective action records described on the RCRA CORRACTS page. ASTM E1527-21 lists state hazardous waste facility records among its standard sources. This handbook does not pair a single Delaware list with that type; this is one of the Delaware records that bear on it, with Hazardous Waste Notification and Reporting. The distances the standard sets for each kind of record are on the search distances page.

Three Delaware details shape how to read a corrective action record.

  • Permits and orders carry the requirements. DNREC says corrective action is principally implemented through RCRA permits and orders, and that its Division of Waste and Hazardous Substances issues RCRA permits to authorize corrective actions as necessary. Ask for the permit or order that governs a facility's corrective action.
  • The work runs in named phases. DNREC lists five: RCRA Facility Assessment (RFA), RCRA Facility Investigation (RFI), Interim Action, Corrective Action Measures Study (CMS) and Corrective Measures Implementation (CMI). It says the process is designed to be site-specific and flexible, and focused more on results than on a fixed sequence of steps.
  • Controls follow the remedy. DNREC says that after remedy completion, institutional and engineering controls are established to prevent or limit exposure to the remaining hazardous waste at the facility. Its examples are environmental covenants restricting land use, contaminated materials management plans to be followed during future earth-disturbing activities, and well drilling restrictions. On a property that was part of a corrective action facility, look for each of these. See also Long-Term Stewardship (LTS).

The page lists corrective action facilities located in Delaware, each linked to a page on EPA's site. DNREC says public notices are provided under the regulations to announce opportunities for the public to review and comment on draft permits and site remedies. The program's laws are 7 Delaware Code Chapter 60 (Environmental Control) and Chapter 63 (Hazardous Waste Management), and its rules are the Regulations Governing Hazardous Waste, 7 DE Admin. Code 1302.

Where to look a site up

Getting the file

The corrective action page does not give a records route of its own. DNREC's FOIA page says the Delaware Freedom of Information Act ensures public access to public records held by DNREC; the route is on the DNREC FOIA Requests page.

Sources

Delaware Department of Natural Resources and Environmental Control pages, read October 13, 2026:

Maintained by Barrow. General reference only, not legal or professional advice. Barrow is not affiliated with any government agency, and neither Barrow nor the information as presented here is endorsed by any state or government agency. See how Barrow drafts the report