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Skip Navigation LinksDNREC : Tank Management : Aboveground Storage Tank Program

 Aboveground Storage Tank Program


New! Requirements for ASTs containing Diesel, Kerosene, or Heating Fuel

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

New! Requirements for Agricultural/Farm ASTs

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

AST Sampling Guidance

Appendix A-Financial Test of Self Insurance

Appendix A-Alternative II

Appendix B-Guarantee

Appendix D-Certificate of Insurance

Appendix H-Standby Trust Agreement

AST Registration Form

AST Activity Notification Form

The Tank Management Section also 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.

AST systems which are subject to the requirements of the AST program can be found at large manufacturing or industrial facilities, hospitals, bulk plants, office building, fueling locations, or transportation facilities.

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).

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

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

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

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