| (iii) The component may be inspected and/or tested
by an alternative method which has been reviewed and determined by
the agency to ascertain electrical isolation and to prevent the release
or threatened release of any stored regulated substance in a manner
that is no less protective of human health and safety and the environment
than the methods described in clauses (i) and (ii) of this subparagraph,
in accordance with the procedures in §334.43 of this title.
(B) The inspections and tests required in subparagraph
(A) of this paragraph shall be conducted within three to six months
after installation of the metal component, and then once every three
years thereafter for the remaining operational life of the UST system.
(C) If the tests required in subparagraph (A) of this
paragraph indicate that the metal component is no longer electrically
isolated from the surrounding soil, backfill, groundwater or any other
water, or from other metal components, a qualified corrosion specialist
shall review the test results and thoroughly inspect the area of the
metal component to ascertain the extent of electrical isolation and
corrosion protection for the component.
(D) If the qualified corrosion specialist determines
that the metal component is no longer adequately protected from corrosion,
the owner or operator shall assure that one or more of the following
procedures are completed within 60 days of the date of such determination:
(i) appropriate repairs or modifications shall be made
to restore the electrical isolation of the protected component; or
(ii) a field-installed cathodic protection system meeting
the requirements of subsection (c)(2) of this section shall be installed.
(2) Dual-protected tanks. If a steel/fiberglass-reinforced
plastic composite tank, a steel tank with a bonded fiberglass-reinforced
plastic external cladding or laminate, a steel tank with a bonded
fiberglass reinforced polyurethane coating, or a steel tank with a
bonded polyurethane coating is also equipped with a factory-installed
cathodic protection system, then the normal inspection and testing
requirements for cathodic protection systems in subsection (c)(4)
of this section may be waived. This paragraph shall be applicable
only to tanks meeting the design and construction requirements in §334.45(b)(1)(D)
or (E) of this title, as applicable, and when such tanks are fitted
with factory-installed cathodic protection systems meeting the requirements
of subsection (c)(1) of this section.
(e) Corrosion protection records.
(1) Owners and operators shall maintain all corrosion
protection records required in this subsection in accordance with
the requirements in §334.10(b) of this title.
(2) Owners and operators shall maintain records adequate
to demonstrate compliance with the corrosion protection requirements
in this section, and in accordance with the following minimum requirements.
(A) All appropriate installation records related to
the corrosion protection system, as listed in §334.46(i) of this
title, shall be maintained for as long as the corrosion protection
system is used, including:
(i) the name, address, telephone number, and corrosion
protection credentials of either the company which designed the factory-installed
cathodic protection system or the corrosion specialist who designed
the field-installed cathodic protection system, as applicable;
(ii) drawings or plans depicting the locations of all
cathodic protection system components, including the locations of
all test stations; and
(iii) operating instructions and warranty information,
maintenance schedules, and testing procedures for all operational
components of the cathodic protection systems.
(B) The following corrosion protection records shall
be maintained for at least five years after the applicable test or
inspection is conducted:
(i) results of all tests and inspections of any impressed
current cathodic protection system conducted in accordance with subsection
(c)(2)(C) of this section; and
(ii) results of all tests and inspections of the adequacy
of any cathodic protection system conducted in accordance with subsection
(c)(4) of this section; and
(iii) results of all tests and inspections to assure
corrosion protection for electrically isolated components in accordance
with subsection (d)(1) of this section.
|
| Source Note: The provisions of this §334.49 adopted to be effective September 29, 1989, 14 TexReg 4714; amended to be effective January 2, 1995, 19 TexReg 10104; amended to be effective November 23, 2000, 25 TexReg 11442; amended to be effective October 30, 2008, 33 TexReg 8790; amended to be effective March 17, 2011, 36 TexReg 1675; amended to be effective May 31, 2018, 43 TexReg 3390 |
