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 Tank Management Section


The Division of Waste and Hazardous Substances' Tank Management Section (TMS) regulates the installation, operation, maintenance, and closure of Underground Storage Tank and Aboveground Storage Tank (UST and AST) systems in order to prevent contamination of soils and groundwater. The staff also permits the installation and operation of Vapor Recovery (VR) equipment, inspects Boilers and Pressure Vessels to protect public safety, and oversees the cleanup of releases from both UST and AST systems. The TMS prevents leaks to the environment by conducting inspections at regulated UST and AST facilities to ensure equipment is properly installed and maintained. These inspections take place at different types of facilities including gas stations, facilities that have large tank systems, and industrial or manufacturing sites located in Delaware. The TMS Program Manager is Alex Rittberg. He can be reached at 302-395-2500. The TMS office is located in DNREC's Lukens Drive Field Office building at: 391 Lukens Drive, New Castle, DE 19720 (Map & Driving Directions).    

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:

ADVISORY: DNREC's Underground Storage Tank Advisory Committee (USTAC) held its first meeting Oct. 26. The newly-formed committee discussed draft changes to the Underground Storage Tank Regulations with stakeholders, along with other topics the USTAC plans to work on. Documentation for the Oct. 26 meeting can be found below. The next meeting will be held Wednesday, Jan. 25, 2017. For questions, or to provide feedback for DNREC, please send an email to  or call Alex Rittberg at 302-395-2500.    

ADVISORY: Effective Feb. 11, 2016, amendments were made to Administrative Code 1351: Regulations Governing Underground Storage Tank Systems (UST Regulations) or printable version. The amendments address changes to the cleanup liability associated with a release from a UST. The amendments to the regulations are found in Part E, Sections 6 and 7 of the UST Regulations. The 2016 UST Regulations can be found here. A fact sheet for owners and operators of UST facilities that explains the changes to cleanup liabilitycan be found here. A PowerPoint presentation that describes the changes can be found here.  For questions regarding the amendments to the UST regulations, please contact Alex Rittberg, Administrator, Tank Management Section, by email at: or by phone at (302) 395-2500.

UST CLOSURE ASSISTANCE: DNREC's Heating Fuel Underground Storage Tank Closure Assistance Program for heating fuel UST systems of 1,100 gallons or less used to store fuel to heat the premises where they are located.


Quick links for frequent users:

UST Program AST Program
Underground Storage Tank Owner/Operator                    Financial Responsibility/Insurance
Homeowner Realtor


UST Operator Training
View Scanned Facility Files A-Z List of Documents
Contractor Information

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

The Tank Management Section also oversees or conducts the investigation and clean up of petroleum and chemical contamination when spills and releases occur on properties with UST or AST systems. The TMS maintains and makes available upon request information stored in paper files and electronic databases relating to USTs, ASTs, and Boilers. Additionally, the TMS provides financial assistance through various programs for the removal of tanks and required cleanup. This includes managing the use of state funds dedicated to the removal and cleanup of UST systems where the owner cannot be found, refuses to perform the work, or does not have the ability to pay.

The Boiler Safety Program is also part of the TMS, ensuring public safety in all public and municipal buildings through inspections of boilers and pressure vessels and by providing education on the operation, maintenance, and repair of boilers and pressure vessels in the State of Delaware.

The TMS staff provides outreach and education by phone, newsletter, website, and presentations to specific groups regarding program activities and requirements.   

To sign up for the Tank Management Section's ListServe, please send a blank email to: 

For more information on the Tank Management Section's Notification and Soil Sampling Guidance, effective Oct. 1, 2012, please visit: Think Tank


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