Current through Register Vol. 24-06, March 15, 2024
(1) Specific
applicability.
This section shall apply to all gasoline transport tanks
equipped for gasoline vapor collection and all vapor collection systems at
gasoline loading terminals, bulk gasoline plants and gasoline dispensing
facilities as qualified in WAC
173-490-025 and
173-490-040.
(2) Provisions for specific processes.
(a) The owner(s) or operator(s) of a gasoline
loading or unloading facility shall only allow the transfer of gasoline between
the facility and a transport tank when a current leak test certification for
the transport tank is on file with the facility or a valid inspection sticker
is displayed on the vehicle.
(b)
The owner(s) or operator(s) of a transport tank shall not make any connection
to the tank for the purpose of loading or unloading gasoline, except in the
case of an emergency, unless the gasoline transport tank:
(i) Is tested annually according to the test
procedure referenced in WAC
173-490-202(3)(c);
(ii) Sustains a pressure change of no more
than 0.75 kilopascals (3 inches of water) in five minutes when pressurized to a
gauge pressure of 4.5 kilopascals (18 inches of water) or evacuated to a gauge
pressure of 1.5 kilopascals (6 inches of water) during the testing required in
WAC 173-490-202(2)(b)(i);
(iii) Is repaired by the owner(s) or
operator(s) and retested within fifteen days of testing if it does not meet the
criteria of WAC
173-490-202(2)(b)(ii);
(c) The owner(s) or operator(s) of
a transport tank shall:
(i) Have a current
leak test certification for the transport tank on file with each gasoline
loading or unloading facility where gasoline is transferred; or
(ii) Display a sticker near the department of
transportation certification plate required by 49 C.F.R. 178.340-10 b which:
(A) Shows the date that the gasoline tank
truck last passed the test required in WAC
173-490-202(2)(b)(i) and
(ii);
(B) Shows the identification number of the
gasoline tank truck tank; and
(C)
Expires not more than one year from the date of the leak tight test.
(d) The owner(s) or
operator(s) of a vapor collection system shall:
(i) Operate the vapor collection system and
the gasoline loading equipment during all loadings and unloadings of transport
tanks equipped for emission control such that:
(A) A gauge reading of tank pressure will not
exceed 4.5 kilopascals (18 inches of water) or vacuum 1.5 kilopascals (6 inches
of water);
(B) The concentration of
gasoline vapors is below the lower explosive limit (LEL, measured as propane)
at all points a distance of 2.5 cm (1 inch) from potential leak sources when
measured by the method in WAC
173-490-202(3);
and
(C) There are no visible liquid
leaks.
(ii) Repair and
retest a vapor collection system that exceeds the limits of WAC
173-490-202(2)(d)(i)
within fifteen days.
(e)
Ecology may, at any time, monitor a gasoline transport tank and vapor
collection system during loading or unloading operations by the procedure in
WAC 173-490-202(3)(d)
to confirm continuing compliance with WAC
173-490-202(2)(b) or
(d).
(3) Testing and monitoring.
(a) The owner(s) or operator(s) of a gasoline
transport tank or vapor collection system shall, at his own expense,
demonstrate compliance with WAC
173-490-202(2)(a) and
(b), respectively. All tests shall be made
by, or under the direction of, a person qualified to perform the
tests.
(b) The owner(s) or
operator(s) of a gasoline transport tank shall notify ecology in writing of the
date and location of a certification test at least ten calendar days before the
anticipated test date.
(c) To
demonstrate compliance with this chapter, refer to WAC
173-400-105.
(d) Monitoring to confirm the continuing
existence of leak tight conditions shall be consistent with the procedures on
file with and approved by ecology.
(4) Recordkeeping.
(a) The owner(s) or operator(s) of a gasoline
transport tank or vapor collection system shall maintain records of all
certification tests and repairs for at least two years after the test or repair
is completed.
(b) The records of
certification tests required by WAC
173-490-202(4)(a)
shall, as a minimum, contain:
(i) The
transport tank identification number;
(ii) The initial test pressure and the time
of the reading;
(iii) The final
test pressure and the time of the reading;
(iv) The initial test vacuum and the time of
the reading;
(v) The final test
vacuum and the time of the reading;
(vi) At the top of each report page, the
company name, date and location of the tests on that page; and
(vii) Name and title of the person conducting
the test.
(c) The
owner(s) or operator(s) of a gasoline transport tank shall annually certify
that the transport tank passed the required tests.
(d) Copies of all records required under WAC
173-490-202 shall immediately be
made available to ecology, upon written request, at any reasonable
time.
Statutory Authority:
Chapter
70.94 RCW. 91-05-064
(Order 90-06), § 173-490-202, filed 2/19/91, effective 3/22/91. Statutory
Authority:
RCW
70.94.331 and
70.94.395. 80-11-062 (Order DE
80-18), § 173-490-202, filed
8/20/80.