Fla. Admin. Code Ann. R. 62-762.701 - Repairs, Operation and Maintenance of Shop Fabricated Storage Tank Systems
(1) Repairs.
(a) Repairs shall be performed if any
component of a storage tank system has:
1. A
release or discharge, or has contributed to a release or discharge of a
regulated substance , or
2. The
presence of groundwater in the interstice of an underground double-walled pipe ,
or
3. An operational or structural
problem that could potentially result in a release or discharge, or lead to the
presence of water in the interstice of a storage tank or integral piping other
than condensate.
(b) The
storage tank system shall immediately cease operating, dispensing, and
accepting deliveries, if:
1. Repairs are
required for any component of a storage tank system ; and,
2. The nature of the repair activities or the
condition of the component cannot be otherwise isolated from the storage tank
system . The restrictions against operating the storage tank system shall not
apply if the storage tank system contains fuels used solely for the generation
of electricity by an electric utility as defined in Chapter 366, F.S., where
the removal of the storage tank system from use would result in the shutdown of
electrical generating units serviced by the storage tank system ; and,
3. The condition of the component
results in an on-going discharge, pursuant to Rule
62-762.441,
F.A.C.
(c) Repairs shall
be made:
1. To restore the structural
integrity of the storage tank system and in a manner that will prevent releases
or discharges from structural failure for the remaining operational life of the
storage tank system ; and,
2. In
accordance with manufacturer's specifications and applicable reference
requirements.
(d) Repairs
shall be evaluated and performed in accordance with Standard for Repair
of Shop Fabricated Aboveground Tank s, STI SP031, 5th Edition, January
2018, hereby adopted and incorporated by reference, and available from the
address listed in subsection
62-762.211(1),
F.A.C., or from the publisher at STI, 944 Donata Court, Lake Zurich, IL 60047,
(847)438-8265, or at https://www.steeltank.com/, or other equivalent
procedures, regardless of the date of installation of the storage tank system
or storage tank system component .
(e) Repaired tanks, integral piping , sumps,
and spill containment systems shall be integrity tested for liquid tightness
before being placed back into operation.
(f) Piping that is damaged or that has caused
a discharge of a regulated substance shall be replaced or repaired. Repairs of
pipe sections, sump penetration fittings, and pipe fittings shall be made in
accordance with applicable requirements in subsections
62-762.501(3) and
(4), F.A.C. Replacement of additional lengths
of single-walled piping in contact with the soil are exempt from the
requirements for secondary containment , provided that:
1. The piping system does not have, or will
not have to install, secondary containment until the deadlines established in
Rule 62-762.501, F.A.C.;
and,
2. The length of replacement
or additional piping is less than 25 percent of the total length of the
existing integral piping for the individual tank , or 100 feet, whichever is
more for each repair event.
(g) A storage tank system that requires
repair , but cannot be repaired within 90 days to operate in accordance with the
requirements of this chapter, shall be taken out-of-service in accordance with
subsection 62-762.801(1),
F.A.C. If the system cannot be repaired within 365 days after being taken
out-of-service , it shall be permanently closed pursuant to subsection
62-762.801(2),
F.A.C.
(2) Cathodic and
corrosion protection .
(a) Cathodic and
corrosion protection systems shall be operated and maintained to provide
continuous corrosion protection to the metal components of those portions of
the storage tank and integral piping in contact with the soil or within
interstitial spaces using vapor corrosion inhibitor technologies.
(b) Inspection and testing requirements.
1. Storage tank systems equipped with
cathodic protection , regardless of the date of installation of the storage tank
system or storage tank system component , must be inspected, tested, and
evaluated by or under the direction of a Corrosion Professional within six
months of installation or repair and at least every year, or every three years
for factory installed (galvanic) cathodic protection systems, thereafter in
accordance with the criteria contained in SP0169-2013, 2013 Edition,
incorporated by reference in subparagraph
62-762.501(3)(c)
2., F.A.C., and External Corrosion Control of Underground Storage Tank
Systems by Cathodic Protection , NACE Standard SP0285-2021, 2021
Edition, hereby adopted and incorporated by reference and, as a copyright
protected document, is available for inspection at the Department of
Environmental Protection or the Department of State address provided in
subsection 62-762.211(1),
F.A.C., or from the publisher at AMPP, 15835 Park Ten Place, Houston, Texas
77084, (800)797-6223, or https://www.ampp.org/home, provided in
paragraph 62-762.211(2)(g),
F.A.C., regardless of the date of installation of the storage tank system or
storage tank system component . All cathodic protection systems shall either
have permanent test stations for soil-to-structure potential measurements or
use temporary field test stations for required testing in accordance with this
subparagraph.
2. Storage tank
systems equipped with impressed current systems shall be inspected at intervals
not exceeding once every 60 days. All sources of impressed current shall be
inspected. Evidence of proper functioning shall be current output, normal power
consumption, a signal indicating normal operation, or satisfactory electrical
state of the protected structure. Impressed current systems that are
inoperative for a cumulative period exceeding 2, 976 hours in one year shall be
assessed within 30 days by a Corrosion Professional to ensure that the storage
tank system is structurally sound, free of corrosion holes, and operating in
accordance with the design criteria before being returned to
service.
(c) Records of
the continuous operation of impressed current systems and all cathodic
protection inspection, testing, and repair activities shall be maintained in
accordance with paragraph
62-762.711(3)(c),
F.A.C.
(d) Storage tank systems
with cathodic protection systems that have been determined by a Corrosion
Professional that the cathodic protection system cannot achieve or maintain
protection levels in accordance with the design criteria shall:
1. Be repaired within 90 days in accordance
with paragraph 62-762.701(1)(c)
or 62-762.702(1)(c),
F.A.C., or
(3)
Vapor Corrosion Inhibitor Systems.
(a) Vapor
Corrosion Inhibitor systems, if installed, shall be operated and maintained to
provide continuous corrosion protection to the metal surfaces within the
interstitial spaces of storage tanks, piping and other enclosed spaces for
storage tank systems.
(b)
Inspection and testing requirements.
1.
Storage tank systems equipped with VCI protection must be inspected, tested,
and evaluated by or under the direction of a Corrosion Professional within six
months of installation or repair and at least every year thereafter.
2. Systems using vapor corrosion inhibitor
technology must be tested in accordance with manufacturer's
instructions.
(c) Records
of the continuous operation of VCI systems and all inspection, testing, and
repair activities shall be maintained in accordance with paragraph
62-762.711(3)(c),
F.A.C.
(d) Storage tank systems
with VCI protection systems that have been determined by a Corrosion
Professional that the VCI system requires replenishing shall:
1. Be replenished or replaced within 90 days
and be retested within 90 days from the date of replenishment, or
2. Be closed in accordance with subsection
62-762.801(2),
F.A.C.
(4)
Operation and maintenance .
(a) Integrity
testing.
1. The integrity of secondary
containment systems and interstitial spaces, regardless of the date of
installation of the storage tank system or storage tank system component , shall
be verified by performing an interstitial or containment integrity test in
accordance with manufacturer's specifications. For storage tank system or
system components without manufacturer integrity or containment testing
specifications, PEI/RP1200-19, 2019 Edition, incorporated by reference in
subparagraph 62-762.501(1)(b)
8., F.A.C., shall be used. Secondary containment systems that use vacuum,
pressure, or liquid level (hydrostatic) monitoring for release detection are
exempt from this requirement. The interstitial or containment integrity tests
shall be performed in accordance with the following schedule:
a. Double-walled storage tanks and
double-walled piping in contact with the soil or over surface waters of the
state, shall be tested at the time of installation and at the time of any
subsequent repair ,
b. Piping sumps
in contact with the soil shall be tested by October 13, 2018, and every three
years thereafter, not to exceed 36 months,
c. Dispenser sumps in contact with the soil
shall be tested by October 13, 2018, and every three years thereafter, not to
exceed 36 months,
d. Piping and
dispenser sumps over surface waters of the state shall be tested within one
year of July 9, 2019, and every three years thereafter, not to exceed 36
months,
e. Below-grade spill
containment systems shall be tested by January 11, 2018, and at intervals not
exceeding every three years thereafter, not to exceed 36 months; and,
f. Hydrant sumps in contact with
the soil shall be tested by January 11, 2018, and every three years thereafter,
not to exceed 36 months.
2. Any integrity test that indicates that the
component is not tight shall be reported and investigated as an incident
pursuant to Rule 62-762.431,
F.A.C.
(b) Water removal.
1. Spill containment systems, interstitial
spaces, dispenser sumps, and piping sumps shall be maintained to provide access
for examination and water removal. Water in excess of one inch in depth, or any
regulated substances collected in secondary containment , spill containment
systems, or in piping sumps, and dispenser sumps shall be removed within 72
hours of discovery , and be either reused or properly disposed.
2. Petroleum Contact Water. Petroleum contact
water from storage tank systems shall be managed in accordance with Chapter
62-740, F.A.C.
(c)
Exterior Coatings shall be maintained to prevent corrosion.
(5) Stormwater management for secondary
containment systems.
(a) The removal of
stormwater from a facility should be performed in accordance with all
applicable Department rules. Owners and operators are advised that other
federal, state, or local requirements may apply to these activities.
(b) Accumulated stormwater shall:
1. Be drawn off within one week after a
rainfall event unless another frequency is allowed by the facility's stormwater
discharge permit or by another instrument, such as a Spill Prevention Control
Countermeasure Plan or a Department permit; and,
2. Not be discharged without treatment if it
has free product , a visible sheen , sludge, or emulsion of regulated
substances.
(c) If
gravity drain pipes are used to remove water from the dike field areas, all
valves shall be kept closed except when the operator is in the process of
draining water.
(d) The removal of
stormwater from a dike field area or secondary containment system can be
continuously removed through equipment registered in accordance with subsection
62-762.851(2),
F.A.C., which is designed to allow filtration of water and prevent discharges
of contaminated water.
(6) Evaluation and testing of single-walled
metallic bulk product and hydrant piping systems in contact with the soil
associated with shop fabricated storage systems shall meet the requirements of
subsection 62-762.702(7),
F.A.C.
(7) When a storage tank
system is registered out-of-service , the system shall continue to be maintained
in accordance with subsection
62-762.801(1),
F.A.C.
Notes
Rulemaking Authority 376.303 FS. Law Implemented 376.303, 403.091 FS.
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