N.H. Code Admin. R. Env-A 1217.09

Current through Register No. 25, June 20, 2024

Section Env-A 1217.09 - Control Techniques for Bulk Gasoline Plants

(a) A bulk gasoline plant, regardless of storage capability or average daily throughput, shall use the following VOC control techniques:

(1) The filling of a storage tank shall be restricted to the use of submerged fill;

(2) The loading of an outgoing gasoline tank truck shall be restricted to the use of submerged fill; and

(3) The bulk plant owner or operator and the owner or operator of each tank truck engaged in transfer operations at the bulk plant shall:

a. Observe all transfer operations involving the subject tank truck; and

b. Discontinue transfer immediately upon the observation of any vapor or liquid leaks associated with the transfer operation.

(b) A bulk gasoline plant having an average daily throughput of 15,000 liters, equivalent to 4,000 gallons, or more based on any consecutive 30-day period during the ozone season for the calendar year 1989 or any subsequent year shall be equipped with the following VOC control equipment:

(1) A Stage I vapor balance system between each incoming gasoline tank truck and any gasoline storage tank having a capacity of more than 2,082 liters, equivalent to 550 gallons; and

(2) A Stage I vapor balance system between each outgoing gasoline tank truck and any gasoline storage tank having a capacity of more than 2,082 liters, equivalent to 550 gallons.

(c) A Stage I vapor balance system installed pursuant to (b), above, shall be as follows:

(1) A Stage I vapor balance system installed pursuant to (b)(1), above, shall be equipped with line fittings that:

a. Are vapor-tight; and

b. Automatically close upon disconnection; and

(2) A Stage I vapor balance system installed pursuant to (b)(2), above, shall be designed to prevent any transfer of collected vapors between loading racks.

(d) The owner or operator of any bulk gasoline plant having an average daily throughput of 15,000 liters, equivalent to 4,000 gallons, or more based on any consecutive 30-day period during the ozone season for the calendar year 1989 or any subsequent year shall ensure that the following VOC control procedures are observed during all transfer and storage operations:

(1) The Stage I vapor balance system required in (b), above, shall remain connected between the tank truck and storage tank;

(2) For a storage tank with a capacity of more than 2,082 liters, equivalent to 550 gallons, tank openings, including inspection hatches and gauging and sampling devices, shall remain vapor-tight when not in use;

(3) The gasoline tank truck compartment hatch cover shall remain closed during product transfer;

(4) Gauge pressure shall not:

a. Exceed 450 mm, equivalent to 18 in., of water in the gasoline tank truck; or

b. Exceed 150 mm, equivalent to 5.9 in., of water in the vapor balance system vacuum during product transfer operations;

(5) Compliance with (4), above, shall be determined by means of a pressure measuring device, such as a liquid manometer, magnehelic gauge, or equivalent instrument, as follows:

a. The device shall be capable of measuring 500 mm, equivalent to 20 in., of water gauge pressure with a precision of +2.5 mm, equivalent to +0.098 in.; and

b. The device shall be calibrated and installed on the bulk gasoline plant vapor balance system at a pressure tap that is located as close as possible to the connection with the gasoline tank truck;

(6) No pressure vacuum relief valve in the bulk gasoline plant vapor balance system shall begin to open at:

a. A system pressure of less than 450 mm, equivalent to 18 in., of water; or

b. A vacuum of less than 150 mm, equivalent to 5.9 in., of water;

(7) Loading of liquid product into gasoline tank trucks shall be limited to vapor-tight tank trucks;

(8) At least once each calendar month, the vapor balance systems required by (b), above, and each loading rack used in loading gasoline tank trucks shall be inspected by visual, sound, or odor detection methods for liquid or vapor leaks during product transfer operations; and

(9) Each detection of a leak shall be recorded and the source of the leak repaired within 16 calendar days after it is detected.

N.H. Code Admin. R. Env-A 1217.09

(See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11

Amended by Volume XXXIX Number 46, Filed November 14, 2019, Proposed by #12899, Effective 10/17/2019, Expires 10/17/2029