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Skip Navigation LinksDNREC : Tank Management : Aboveground Storage Tank Program

 Aboveground Storage Tank Program


A-Z List of Documents

Requirements for ASTs containing Diesel, Kerosene, or Heating Fuel

Requirements for ASTs containing Regulated Substances other than Diesel, Kerosene or Heating Fuel

Requirements for Agricultural/Farm ASTs

ASTs- Agricultural/Farm -Approved Best Management Practices for ASTs less than 40,000 gallons 

AST Activity Notification Form

AST Foreclosure Form Notice 

AST Registration Form

AST Sampling Guidance

The Tank Management Section implements the Aboveground Storage Tank (AST) program. The AST program is responsible for ensuring the safe operation of over 1,000 regulated AST facilities in the state. All registered ASTs have to comply with Delaware’s Regulations Governing Aboveground Storage Tank Systems (AST Regulations).The AST program conducts inspections at facilities with AST systems to prevent releases to the environment by ensuring that AST systems are properly installed, inspected, tested, and maintained. The AST program also oversees the cleanup of sites which have had releases from AST systems. Information regarding AST system sites is available online using the Delaware Environmental Navigator (DEN). A request for information may be made through the Freedom of Information Act (FOIA).

UPDATE:  Senate Bill 233, amending Delaware’s Aboveground Storage Tank Law: 7 Delaware Code, Chapter 74A, known as the Jeffrey Davis Act, was signed by Governor Jack Markell on July 13, 2016. With the passage of the legislation, DNREC is now moving forward with promulgating changes to the Aboveground Storage Tank Regulations and will conduct a Public Hearing beginning at 6pm on Tuesday, December 6, 2016 at DNREC’s New Castle Office located at 391 Lukens Drive, New Castle, Delaware.  For more information on the legislation and proposed changes to the regulations, please visit the following links:

Comments on the Proposed Regulations Governing Aboveground Storage Tanks may be emailed to:

Spill Prevention, Control and Countermeasure (SPCC) Plan information:

To report a release, please call: 1-800-662-8802

Not finding what you need on this page? Try the A-Z list of tank-related documents

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