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The Tank Management Section (TMS) Corrective Action program oversees the cleanup of petroleum and chemical contamination at properties where a release has occurred from underground storage tanks (USTs) or aboveground storage tanks (ASTs). Remediation and investigation activities are guided by the Delaware Risk-Based Corrective Action Program (DERBCAP). DERBCAP is a risk-based clean up approach that assesses the risks associated with petroleum and chemical impacts to soil and groundwater. If remediation is required, DERBCAP is used to develop clean up goals
To assist consultants, responsible parties, and the public through the investigation process, the Corrective Action program has developed a Hydrogeologic Investigation (HI) Guide. This guidance contains a checklist and information on how to successfully complete the requirements needed for investigation of a release at a facility.
The TMS keeps a list of Environmental Investigation and Remediation Consultants. If you are interested in being placed on this list, please click here.
Information regarding release sites is available online using the Delaware Environmental Navigator (DEN). A request for information may be made through the Freedom of Information Act (FOIA).
To report a release, call: 1-800-662-8802