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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 Sampling Guidance

AST Registration Form

AST Activity Notification Form

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, with proposed changes to Delaware's Regulations Governing Aboveground Storage Tanks, was signed by Governor Jack Markell on July 13, 2016. For more information on the legislation and changes to the regulations, please visit:

Comments on the Draft Regulations Governing Aboveground Storage Tanks may be emailed to: until July 27, 2016.

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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