Current through Register Vol. 54, No. 44, November 2, 2024
(a)
Alternatives allowed. By
December 22, 1998, existing underground storage tank systems shall comply with
one of the following requirements:
(1)
Underground storage tank system performance standards under §
245.421(b)
(relating to performance standards for underground storage tank
systems).
(2) The upgrading
requirements in subsections (b)-(d).
(3) Closure requirements under §§
245.451-245.455 (relating to
out-of-service underground storage tank systems and closure), including
applicable requirements for corrective action under Subchapter D (relating to
corrective action process for owners and operators of storage tanks and storage
tank facilities and other responsible parties).
(b)
Tank upgrading
requirements. Steel tanks shall be upgraded to meet one of the
following requirements in accordance with a code of practice developed by a
Nationally recognized association or independent testing laboratory:
(1)
Interior lining. A tank
may only be upgraded by internal lining for corrosion protection prior to
November 10, 2007. Existing lined tanks must meet the following conditions:
(i) The lining was installed in accordance
with §
245.434 (relating to repairs
allowed).
(ii) Within 10 years
after lining, and every 5 years thereafter, the lined tank is internally
evaluated by, or under the direct onsite supervision of a certified tank liner
(TL) or by a professional engineer adhering to the evaluation process developed
by a National association (See API 1631 and NLPA 631) and found to be
structurally sound with the lining still performing in accordance with original
design specifications. The evaluation findings shall be documented on a form
approved by the Department and shall be maintained at the facility for the
duration of the tank's operating life.
(iii) Lined tank systems that do not meet
original design specifications or have not been evaluated as required in
subparagraph (ii) shall be emptied, removed from service, and permanently
closed in accordance with §§
245.451 and
245.452 (relating to temporary
removal from service (out-of-service); and permanent closure and
changes-in-service).
(2)
Cathodic protection. A tank may be upgraded by cathodic
protection if the cathodic protection system meets the requirements in §
245.421(b)(1)(ii)(B)-(D)
and the integrity of the tank is ensured using one or more of the following
methods:
(i) The tank is internally inspected
and assessed to ensure that the tank is structurally sound and free of
corrosion holes prior to installing the cathodic protection system.
(ii) The tank is installed at a site that is
determined by a corrosion expert not to be corrosive enough to cause it to have
a release due to corrosion during its operating life. Owners and operators
shall maintain records that demonstrate compliance with this requirement for
the remaining life of the tank.
(iii) The tank is assessed for corrosion
holes by a method that is determined by the Department to prevent releases in a
manner that is no less protective of human health and the environment than
subparagraph (i).
(3)
Internal lining combined with cathodic protection. A tank
upgraded prior to November 10, 2007, having both internal lining and cathodic
protection must meet the following:
(i) The
lining was installed in accordance with the requirements in §
245.434.
(ii) The cathodic
protection system meets § 245.421(b)(1)(ii)(B)-(D).
(c)
Piping upgrading
requirements. Metal piping and fittings that routinely contain
regulated substances and are in contact with the ground must be one or more of
the following:
(1) Replaced with piping
meeting the requirements of new piping in § 245.421(b)(2)(i) and
(ii).
(2) Cathodically protected in
accordance with a code of practice developed by a Nationally recognized
association or independent testing laboratory and meets the requirements in
§ 245.421(b)(2)(ii)(B)-(D).
(3) Installed at a site that is determined to
not be corrosive enough to cause a release due to corrosion for the remaining
operating life of the piping under § 245.421(b)(2)(iii).
(d)
Spill and overfill
prevention equipment. To prevent spilling and overfilling associated
with product transfer to the underground storage tank system, underground
storage tank systems must comply with underground storage tank system spill and
overfill prevention equipment requirements in § 245.421(b)(3) and
(4).
(e)
Under-dispenser
containment. When an existing dispenser is replaced with another
dispenser and equipment at or below the shear valve needed to connect the
dispenser to the underground storage tank system is replaced, under-dispenser
containment meeting the requirements in §
245.421(b)(4)(ii)
is required. This equipment may include check valves, shear valves, vertical
risers, flexible connectors or other transitional components. Under-dispenser
containment shall also be installed when a major modification as defined in
§
245.1 (relating to definitions) is
performed at the dispenser area involving excavation beneath the
dispenser.
This section cited in 25 Pa. Code §
245.110 (relating to certification
of installers); 25 Pa. Code §
245.403 (relating to
applicability); 25 Pa. Code §
245.432 (relating to operation and
maintenance including corrosion protection); 25 Pa. Code §
245.435 (relating to reporting and
recordkeeping); and 25 Pa. Code §
245.451 (relating to temporary
removal from service
(out-of-service)).
