Current through Vol. 24-16, September 15, 2024
Rule 92. Section 280.252 is added as adopted from the
July 15, 2015, EPA-UST rules as follows:
Section 280.252. Additions, exceptions, and alternatives
for UST systems with field-constructed tanks and airport hydrant systems.
(a) Exception to piping secondary
containment requirements. Owners and operators may use single walled piping
when installing or replacing piping associated with UST systems with
field-constructed tanks greater than 50,000 gallons and piping associated with
airport hydrant systems. Piping associated with UST systems with
field-constructed tanks less than or equal to 50,000 gallons not part of an
airport hydrant system shall meet the secondary containment requirement when
installed or replaced.
(b) Upgrade
requirements. Not later than October 13, 2018, airport hydrant systems and UST
systems with field-constructed tanks where installation commenced on or before
October 13, 2015 shall meet the following requirements or be permanently closed
pursuant to subpart G of these rules.
(1)
Corrosion protection. UST system components in contact with the ground that
routinely contain regulated substances shall meet 1 of the following:
(i) Except as provided in subsection (a) of
this section, the new UST system performance standards for tanks at subsection
280.20(a) and for piping at subsection 280.20(b).
(ii) Be constructed of metal and cathodically
protected according to a code of practice developed by a nationally recognized
association or independent testing laboratory that meets both of the following:
(A) Cathodic protection shall meet the
requirements of paragraphs 280.20(a)(2)(ii), (iii), and (iv) for tanks, and
paragraphs 280.20(b)(2)(ii), (iii), and (iv) for piping.
(B) Tanks greater than 10 years old without
cathodic protection shall be assessed to ensure the tank is structurally sound
and free of corrosion holes prior to adding cathodic protection. The assessment
shall be by internal inspection or another method determined by the
implementing agency to adequately assess the tank for structural soundness and
corrosion holes.
(2) Spill and overfill prevention equipment.
To prevent spilling and overfilling associated with product transfer to the UST
system, all UST systems with field-constructed tanks and airport hydrant
systems shall comply with new UST system spill and overfill prevention
equipment requirements specified in subsection 280.20(c).
(c) Walkthrough inspections. In addition to
the walkthrough inspection requirements in section 280.36, owners and operators
shall inspect the following additional areas for airport hydrant systems at
least once every 30 days if confined space entry according to the Occupational
Safety and Health Administration (see 29 CFR part 1910) is not required or at
least annually if confined space entry is required and keep documentation of
the inspection according to subsection 280.36(b).
(1) Hydrant pitsvisually check for any
damage; remove any liquid or debris; and check for any leaks, and
(2) Hydrant piping vaultscheck for any
hydrant piping leaks.
(d) Release detection. Owners and operators
of UST systems with field-constructed tanks and airport hydrant systems must
begin meeting the release detection requirements described in this subpart not
later than October 13, 2018.
(1) Methods of
release detection for field-constructed tanks. Owners and operators of
field-constructed tanks with a capacity less than or equal to 50,000 gallons
shall meet the release detection requirements in subpart D of these rules.
Owners and operators of field-constructed tanks with a capacity greater than
50,000 gallons shall meet either the requirements in subpart D (except
subsections 280.43(e) and (f) shall be combined with inventory control as
stated below) or use 1 or a combination of the following alternative methods of
release detection:
(i) Conduct an annual tank
tightness test that can detect a 0.5 gallon per hour leak rate.
(ii) Use an automatic tank gauging system to
perform release detection at least every 30 days that can detect a leak rate
less than or equal to 1 gallon per hour. This method shall be combined with a
tank tightness test that can detect a 0.2 gallon per hour leak rate performed
at least every 3 years
(iii) Use an
automatic tank gauging system to perform release detection at least every 30
days that can detect a leak rate less than or equal to 2 gallons per hour. This
method shall be combined with a tank tightness test that can detect a 0.2
gallon per hour leak rate performed at least every 2 years.
(iv) Perform vapor monitoring (conducted in
accordance with subsection 280.43(e) for a tracer compound placed in the tank
system) capable of detecting a 0.1 gallon per hour leak rate at least every 2
years.
(v) Perform inventory
control (conducted in accordance with Department of Defense Directive 4140.25;
ATA Airport Fuel Facility Operations and Maintenance Guidance Manual; or
equivalent procedures) at least every 30 days that can detect a leak equal to
or less than 0.5 percent of flow-through and complete either of the following:
(A) Perform a tank tightness test that can
detect a 0.5 gallon per hour leak rate at least every 2 years.
(B) Perform vapor monitoring or groundwater
monitoring (conducted in accordance with subsections 280.43(e) or (f),
respectively, for the stored regulated substance) at least every 30
days.
(vi) Use another
method approved by the implementing agency if the owner and operator can
demonstrate that the method can detect a release as effectively as any of the
methods allowed in paragraphs (d)(1)(i) through (v) of this section. In
comparing methods, the implementing agency shall consider the size of release
that the method can detect and the frequency and reliability of
detection.
(2) Methods
of release detection for piping. Owners and operators of underground piping
associated with field-constructed tanks less than or equal to 50,000 gallons
shall meet the release detection requirements in subpart D of these rules.
Owners and operators of underground piping associated with airport hydrant
systems and field-constructed tanks greater than 50,000 gallons shall follow
either the requirements in subpart D (except subsections 280.43(e) and (f)
shall be combined with inventory control as stated below) or use 1 or a
combination of the following alternative methods of release detection:
(i)
(A)
Perform a semiannual or annual line tightness test at or above the piping
operating pressure in accordance with the table below.
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MAXIMUM LEAK DETECTION RATE PER TEST SECTION
VOLUME
|
|
Test section volume (gallons)
|
Semiannual test-leak Annual test-leak detection
rate not to exceed detection rate not to exceed (gallons per hour) (gallons per
hour)
|
|
<50,000
|
1.0
|
0.5
|
|
[GREATER THAN EQUAL TO]50,000 to 75,000
|
1.5
|
0.75
|
|
[GREATER THAN EQUAL TO]75,000 to 100,000
|
2.0
|
1.0
|
|
[GREATER THAN EQUAL TO]100,000
|
3.0
|
1.5
|
(B) Piping segment volumes [GREATER THAN
EQUAL TO]100,000 gallons not capable of meeting the maximum 3.0 gallon per hour
leak rate for the semiannual test may be tested at a leak rate up to 6.0
gallons per hour according to the following schedule:
|
PHASE IN FOR PIPINIG SEGMENTS [GREATER THAN
EQUAL TO]100,000 GALLONS IN VOLUME
|
|
First test
|
Not later than October 13, 2018 (may use up to
6.0 gph leak rate).
|
|
Second test
|
Between October 13, 2018 and October 13, 2021
(may use up to 6.0 gph leak rate).
|
|
Third test
|
Between October 13, 2021 and October 13, 2022
(must use 3.0 gph for leak rate).
|
|
Subseque nt tests
|
After October 13, 2022, begin using semiannual
or annual line testing according to the Maximum Leak Detection Rate Per Test
Section Volume table above.
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(ii) Perform vapor monitoring (conducted in
accordance with subsection 280.43(e) for a tracer compound placed in the tank
system) capable of detecting a 0.1 gallon per hour leak rate at least every 2
years.
(iii) Perform inventory
control (conducted in accordance with Department of Defense Directive 4140.25;
ATA Airport Fuel Facility Operations and Maintenance Guidance Manual; or
equivalent procedures) at least every 30 days that can detect a leak equal to
or less than 0.5 percent of flowthrough and complete either of the following:
(A) Perform a line tightness test (conducted
in accordance with paragraph (d)(2)(i) of this section using the leak rates for
the semiannual test) at least every 2 years.
(B) Perform vapor monitoring or groundwater
monitoring (conducted in accordance with subsections 280.43(e) or (f),
respectively, for the stored regulated substance) at least every 30
days.
(iv) Another
method approved by the implementing agency if the owner and operator can
demonstrate that the method can detect a release as effectively as any of the
methods allowed in paragraphs (d)(2)(i) through (iii) of this section. In
comparing methods, the implementing agency shall consider the size of release
that the method can detect and the frequency and reliability of
detection.
(3)
Recordkeeping for release detection. Owners and operators shall maintain
release detection records according to the recordkeeping requirements in
section 280.45.
(e)
Applicability of closure requirements to previously closed UST systems. When
directed by the implementing agency, the owner and operator of an UST system
with field-constructed tanks or airport hydrant system permanently closed
before October 13, 2015 shall assess the excavation zone and close the UST
system in accordance with subpart G of these rules if releases from the UST
may, in the judgment of the implementing agency, pose a current or potential
threat to human health and the environment.
