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Aboveground Storage Tanks

Aboveground Storage Tanks

The State Water Control Board promulgates Virginia's regulations which include Aboveground Storage Tanks. The following file is downloadable in PDF format by clicking on the following link.  Facility and Aboveground Storage Tank (AST) Regulation  Scroll thru each section of 9VAC25-91. The AST regulations were revised on November 1, 2015 to incorporate new performance standards as mandated by the 2011 General Assembly. Other changes align Virginia's regulatory requirements with federal requirements and current industry standards.

Federal Requirements

At the federal level, EPA’s oil spill prevention program includes the Spill Prevention, Control, and Countermeasure (SPCC) and the Facility Response Plan (FRP) rules. The SPCC rule helps facilities prevent a discharge of oil into navigable waters or adjoining shorelines. The FRP rule requires certain facilities to submit a response plan and prepare to respond to a worst case oil discharge or threat of a discharge. Further information and guidance on the federal SPCC and FRP oversight is available here:

Locality-Specific Requirements

In addition to federal and state requirements, local building and fire codes may apply to the location, construction, operation, monitoring, and closure of new or existing ASTs.  Local building and fire officials should be consulted to determine applicability of local building and fire codes.



Summary of General AST Requirements


AGGREGATE FACILITY CAPACITY - Gallons    0 to ≤ 660  >660 to < 25K ≥ 25K to < 1MM ≥ 1MM
Excluded from Regulation 30.A.3 X      
Registration of Tank(s) w/DEQ  100.A   X X X
Re-registration every 5 years  100.F   X X X
Registration of Tank(s) w/Local Officials 100.G   X X X
Closure Assessment 120   X X X
Record-keeping 150     X X
Inventory Control Testing 130.B.1     X X
Secondary Containment  130.B.2     X X
Safe Fill & Shutdown 130.B.3     X X
Pressure Testing of Pipes 130.B.4     X X
Visual Daily & Weekly Inspection of Tanks 130.B.5     X X
Training of Individuals 130.B.6     X X
Leak Detection 130.B.7     X X
Formal Inspection (new tanks) 130.C.1       X
Formal Re-inspection  130.C.2       X
Safe Fill & Shutdown & High Level Alarm 130.C.3       X
Cathodic Protection of Piping  130.C.4       X
Performance Standards for ASTs Newly Installed, Retrofitted, or Brought Into Use 140     X X
Oil Discharge Contingency Plan (22 items)  170     X X
Groundwater Characterization & Monitoring 180 & 190       X

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Aboveground Storage Tank Financial Requirements

The Aboveground Storage Tank and Pipeline Facility Financial Responsibility Requirements Regulation, 9 VAC 640-10 et seq. requires operators of pipelines and operators of aboveground storage tank (AST) facilities having a maximum aggregate storage capacity of 25,000 gallons or greater to demonstrate that they have adequate financial resources to perform their responsibility to contain and cleanup any oil discharges which may occur at their facilities. Any operator of a regulated AST facility and any operator of a pipeline facility must demonstrate financial responsibility in accordance with the regulation. The regulation provides for a variety of financial mechanisms with which an operator may demonstrate that they have adequate financial resources. Types of mechanisms range from self-insurance to letters of credit. The language for each type of mechanism is provided in the regulation. Operators must update the documents annually and maintain them at the facility or at corporate headquarters if the headquarters is located within the Commonwealth.   A fact sheet is available to provide more information on the AST financial responsibility requirements.

Flood Risk

Virginia Flood Risk Information System (VFRIS). VFRIS is a web-based GIS designed to help communities, real estate agents, property buyers and property owners discern an area's flood risk. Tank and facility owners can use VFRIS to assess the risk of flood damage to their property. Direct questions on flood zones to the Department of Conservation and Recreation (DCR) and to the appropriate local authority.

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Virginia Department of
Environmental Quality
P.O. Box 1105
Richmond, VA 23218
(804) 698-4000

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