250 R.I. Code R. 250-RICR-120-05-11.4

Current through December 26, 2024

Section 250-RICR-120-05-11.4 - Storage of Petroleum Liquids - Fixed Roof Tanks

11.4.1Prohibitions and Requirements

A. No person shall place, store or hold in any stationary vessel, reservoir, or other container of more than forty thousand (40,000) gallons capacity any petroleum liquids unless such tank reservoir or other container is a pressure tank capable of maintaining working pressures sufficient at all times to prevent vapor or gas loss to the outdoor atmosphere unless:

1. The source utilizes an internal floating roof equipped with a closure seal, or seals, to close the space between the roof edge and tank wall such that:

a. The cover must float uniformly on the liquid;

b. There is no accumulated liquid on the cover, and;

c. The seal is intact and uniformly in place around the circumference of the cover between the cover and tank wall, or

2. The source utilizes an alternative control device that is at least ninety-five percent (95%) effective at reducing or recovering VOC emissions, approved by the Director, and

3. The source is maintained such that there are no visible holes, tears, or other openings in the seal or any seal fabric or materials, and

4. Where applicable, all openings, except stub drains, are equipped with covers, lids, or seals such that:

a. The cover, lid, or seal is in the closed position at all times except when in actual use, and

b. Automatic bleeder vents are closed at all times except when the roof is being floated off or being landed on the roof leg supports, and

c. Rim vents, if provided, are set to open when the roof is being floated off the roof leg supports or at the manufacturer's recommended setting, and

5. Routine visual inspections of the internal floating roof and the primary and secondary seals are conducted through roof hatches on an annual basis, and

6. A complete visual inspection of the internal floating roof, the primary and secondary seals, gaskets, slotted membranes and sleeve seals is conducted whenever the tank is emptied or once every ten (10) years, whichever is more frequent, or

7. The source utilized a vapor recovery system consisting of a device capable of collecting the vapor from volatile organic liquids and gases so as to prevent their emissions to the outdoor atmosphere. All tank gauging and sampling devices shall be gas tight except when gauging or sampling is taking place.

11.4.2Records

A. Records are to be maintained at the facility by the owner or operator of a source defined in § 11.4.1 of this Part and shall include:

1. Reports of the results of inspections conducted under §§ 11.4.1(A)(5) and (6) of this Part.

2. Records of daily throughput quantities, types of volatile petroleum liquids, average monthly storage temperature, and true vapor pressure of the stored liquid.

3. Records for both scheduled and unscheduled maintenance.

B. Records cited in § 11.4.2(A) of this Part shall be maintained for a period of three (3) years and shall be accessible for review by the Director, personnel designated by the Director, or the EPA.

250 R.I. Code R. 250-RICR-120-05-11.4

Amended effective 1/10/2019
Amended effective 2/18/2024
Amended effective 10/14/2024