06- 096 C.M.R. ch. 133, § 3

Current through 2024-51, December 18, 2024

Section 096-133-3 - Standards

A. Each bulk gasoline plant 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.

B.Each bulk gasoline plant 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.

C. Each owner or operator of a bulk gasoline plant subject to this regulation shall act to ensure that the following procedures are followed during all loading, unloading, and storage operations:

(1) The vapor balance system shall be connected between the tank truck and storage vessel during all gasoline transfer operations;

(2) All storage vessel openings, including inspection hatches and gauging and sampling devices shall be vapor tight when not in use;

(3) The gasoline tank truck compartment hatch covers shall not be opened during the gasoline transfer;

(4) All vapor balance systems shall be designed and operated at all times to prevent gauge pressure in the gasoline tank truck from exceeding 18 inches of water and vacuum from exceeding 6 inches of water during product transfers;

(5) No pressure vacuum relief valve in the bulk gasoline plant vapor balance system shall begin to open at a system pressure of less than 18 inches of water or at a vacuum of less than 6 inches of water;

(6) No product shall be transferred into a tank truck which does not have a current certification for tank tightness pursuant to Chapter 120;

(7) Filling of storage vessels shall be restricted to submerged fill;

(8) Loading of outgoing gasoline tank trucks shall be limited to submerged fill; and

(9) 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 liquid leaks are observed.

D.Each calendar month, the vapor balance systems and each loading rack handling gasoline shall be inspected for liquid or vapor leaks during gasoline transfer operations. For purposes of this subsection, 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.

06- 096 C.M.R. ch. 133, § 3