Delivery Prohibition

Delivery Prohibition (R.61-92, Part 280.26 (a)-(h)) is when the Division prohibits the delivery of fuel to an underground storage tank system by placing a red tag on the fill port. The process of delivery prohibition will most often begin by issuance of a Notice of Alleged Violation, either for compliance violations, financial responsibility violations, or operator training violations. After the 30 day follow-up period has passed, and compliance has still not been reached, a delivery prohibition letter will be issued.

Walkthrough Inspections

Walkthrough inspections can be done in conjunction with A/B operator requirements. A person knowledgeable in tank systems (does not have to be the A/B operator) must complete the inspection form. Walkthrough inspections include two components: monthly requirements and annual requirements. Walkthrough inspections must begin no later than May 26, 2020.

UST System Closures

Temporary Closure/Extended-Out-Of-Use (EOU)

Temporary Closure is an option that tank owners may choose when they decide not to use the tanks for a period of time. The proper temporary closure is referred to as Extended-Out-Of-Use (EOU). In order for a facility to remain in compliance while out-of-use, the following requirements must be met:

Secondary Containment

(applies to all systems installed after May 23, 2008)

Examples of secondary containment:

  • Double-wall tank
  • Double-wall piping
  • Under-dispenser containment (dispenser sump )
  • Submersible turbine pump sump

Instances where secondary containment is now required:

Marinas - Special Requirements

A marina is defined as a land-based fueling facility that dispenses fuel over or in close proximity to a waterway. South Carolina currently has 71 marinas that are regulated by the Underground Storage Tank (UST) Management Division (44 saltwater and 27 freshwater).

Because marinas are special facilities that have concerns that differ from "normal" gas stations, there are certain points that should be considered any time a marina is installed or updated.

Recommended items:

Alternative Fuels

Although the Underground Storage Tank Management Division has begun the use of the Alternative Fuel Installation Application/Conversion Notification (pdf) checklist, compatibility between alternative fuels and typical UST system components continues to be an issue. Our support for the industry includes making sure that the proper safeguards are in place so that the positive environmental contributions of renewable fuels are not negated by using equipment that may not be compatible.