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UST Systems with Field-Constructed Tanks and Airport Hydrant Fuel Distribution Systems

Not later than May 26, 2020, all owners of previously deferred UST systems must submit a one-time notice of tank  system existence to the Department, using EPA form 7530-1, a Department form, a Department approved form, or submitted in a format as approved by the Department in accordance with Section 280.22(c). Owners and operator of UST systems in use as of May 26, 2017 must demonstrate financial responsibility at the time of submission of the notification form as required by Section 280.251.

R. 61-92, Part 280.250(a) states that "Airport hydrant fuel distribution system (also called airport hydrant system)" means an UST system which fuels aircraft and operators under high pressure with large diameter piping that typically terminates into one or more hydrants (fill stands). The airport hydrant system begins where fuel enters one or more tanks from an external source such as a pipeline, barge, rail car, or other motor fuel carrier.

R.61-92, Part 280.250(b) states that "Field-Constructed tank" means a tank constructed in the field. For example, a tank constructed of concrete that is poured in the field, or a steel or fiberglass tank primarily fabricated in the field is considered field-constructed.

If you are planning to Install a UST system with Field-Constructed Tanks or Airport Hydrant Fuel Distribution System please submit an Application for Permit to Install:

Leak Detection Requirements

Method Requirement
Vapor Monitoring Must be combined with Inventory Control and Tank Tightness Test
Groundwater Monitoring Must be combined with Inventory Control and Tank Tightness Test
Automatic tank Gauge Option 1 Can detect a 1 gallon/hour leak and must be used with a Tank Tightness Test every 3 years
Automatic Tank Gauge Option 2 Can detect less than or equal to 2 gallon/hour leak with a Tank Tightness Test every 2 years
Inventory Control Can detect less than or equal to 0.5 gallon/hr leak with a Tank Tightness Test every 2 years

The methods listed in the table above are for Airport Hydrant and Field-Constructed Systems with a capacity of greater than 50,000 gallons only.

  • You can refer to the following industry standards for further reference: API 1615; ANSI B31.3; Unified Facilities Criteria 3-460-01; Defense Directive 4140.25
  • Field Constructed Systems only of greater than 50,000 gallon can use single walled piping