W. Va. Code R. § 45-21-21

Current through Register Vol. XLI, No. 50, December 13, 2024

Section 45-21-21 - Bulk Gasoline Plants

21.1. Applicability.

21.1.1. This section 21. applies to all unloading, loading, and storage operations at bulk gasoline plants and to any tank truck delivering or receiving gasoline at a bulk gasoline plant.

21.1.2. The following are subject only to the requirements of paragraphs 21.2.3.g., 21.2.3.h., and 21.2.3.i.:

21.1.2.a. Any stationary storage tank of 2,082 liters (L) (550 gallons [gal]) capacity or less notwithstanding section 8.; or

21.1.2.b. Any bulk gasoline plant with an average daily throughput of gasoline of less than 15,000 L (4,000 gal) on a 30-day rolling average provided that records are maintained according to the requirements in subdivision 21.4.1.

21.2. Standards.

21.2.1. Each bulk gasoline plant subject to this section 21. shall be equipped with a vapor balance system between the gasoline storage vessel and the incoming gasoline tank truck designed to capture and transfer vapors displaced during filling of the gasoline storage vessel. These lines shall be equipped with fittings that are vapor tight and that automatically and immediately close upon disconnection.

21.2.2. Each bulk gasoline plant subject to this section 21. shall be equipped with a vapor balance system between the gasoline storage vessel and the outgoing gasoline tank truck designed to capture and transfer vapors displaced during the loading of the gasoline tank truck. The vapor balance system shall be designed to prevent any vapors collected at one loading rack from passing to another loading rack.

21.2.3. Each owner or operator of a bulk gasoline plant subject to this section 21. shall act to ensure that the procedures in paragraphs 21.2.3.a. through 21.2.3.i. are followed during all loading, unloading, and storage operations:

21.2.3.a. The vapor balance system required by subdivisions 21.2.1. and 21.2.2. shall be connected between the tank truck and storage vessel during all gasoline transfer operations;

21.2.3.b. All storage vessel openings, including inspection hatches and gauging and sampling devices shall be vapor tight when not in use;

21.2.3.c. The gasoline tank truck compartment hatch covers shall not be opened during the gasoline transfer;

21.2.3.d. All vapor balance systems shall be designed and operated at all times to prevent gauge pressure in the gasoline tank truck from exceeding 450 millimeters (mm) (18 inches [in]) of water and vacuum from exceeding 150 mm (5.9 in) of water during product transfers;

21.2.3.e. No pressure vacuum relief valve in the bulk gasoline plant vapor balance system shall begin to open at a system pressure of less than 450 mm (18 in) of water or at a vacuum of less than 150 mm (5.9 in) of water;

21.2.3.f. All product transfers involving gasoline tank trucks at bulk gasoline plants subject to this section 21. shall be limited to vapor-tight gasoline tank trucks;

21.2.3.g. Filling of storage vessels shall be restricted to submerged fill;

21.2.3.h. Loading of outgoing gasoline tank trucks shall be limited to submerged fill; and

21.2.3.i. Owners or operators of bulk gasoline plants or owners or operators of tank trucks shall observe all parts of the transfer and shall discontinue transfer if any leaks are observed.

21.2.4. Each calendar month, the vapor balance systems described in subdivisions 21.2.1. and 21.2.2. and each loading rack handling gasoline shall be inspected for liquid or vapor leaks during gasoline transfer operations. For purposes of this subdivision 21.2.4., detection methods incorporating sight, sound, or smell are acceptable. Each leak that is detected shall be repaired within 15 calendar days after it is detected.

21.3. Compliance provisions. -- A pressure measurement device (liquid manometer, magnehelic gauge, or equivalent instrument) capable of measuring 500 mm (20 in) of water gauge pressure within a "2.5 mm (0.098 in) of water precision, shall be calibrated and installed on the bulk gasoline plant vapor balance system at a pressure tap, located as close as possible to the connection with the gasoline tank truck, to allow determination of compliance with paragraph 21.2.3.d.

21.4. Recordkeeping. -- The owner or operator of a facility subject to this section 21. shall maintain the following records in a readily accessible location for at least 3 years and shall make these records available to the Secretary upon verbal or written request.

21.4.1. All bulk gasoline plants subject to this section 21. shall maintain daily records showing the quantity of all gasoline loaded into gasoline tank trucks.

21.4.2. A record of each monthly leak inspection required under subdivision 21.2.4. shall be kept on file at the plant. Inspection records shall include, as a minimum, the following information:

21.4.2.a. Date of inspection;

21.4.2.b. Findings (may indicate no leaks discovered or location, nature, and severity of each leak);

21.4.2.c. Leak determination method;

21.4.2.d. Corrective action (date each leak repaired; reasons for any repair interval in excess of 15 days); and

21.4.2.e. Inspector name and signature.

21.5. Reporting. -- The owner or operator of any facility containing sources subject to this section 21. shall comply with the requirements in subsections 5.1. and 5.2.

W. Va. Code R. § 45-21-21