Current through Register Vol. 48, No. 38, September 20, 2024
a) To prevent spilling and overfilling
associated with product transfer to the UST, owners or operators shall use the
following spill containment and overfill prevention equipment:
1) Both:
A)
Spill containment equipment that will prevent release of product to the
environment when the transfer hose is detached from the fill pipe (e.g., a
spill catch basin). Spill containment equipment shall be maintained in a dry,
clean state. Spill containment is subject to the following capacity and wall
requirements depending on the date of installation:
i) Capacity requirement: On or after May 1,
2003, new or replaced spill containment equipment must have a minimum 5 gallon
capacity, except that a third party listed replacement containment designed by
the manufacturer to be inserted into an existing spill containment will be
allowed as long as it has a minimum capacity of
3.5 gallons.
ii) Wall requirements: On and after May 1,
2023, all new or replaced spill containment equipment shall be of double-wall
construction: single-wall horizontal cabinets shall be exempt from this
double-wall requirement and may continue to be installed as single-walled;
and
B) Overfill
prevention equipment that alarms or shuts off flow as follows:
i) Drop tube overfill device: automatically
shuts off flow into the tank when the tank is no more than 95% full;
ii) Ball float overfill device: alerts the
transfer operator when the tank is no more than 90% full by restricting the
flow into the tank;
iii) Ball float
assembly present with ball removed only, with drop tube overfill device:
automatically restricts flow to alert the transfer operator when the tank is no
more than 90% full, for situations where a ball float valve has been disabled
by removing the ball but the related piping remains; or
iv) Overfill alarm: alerts the transfer
operator when the tank is no more than 90% full by triggering an audible and
visual high-product level alarm; or
2) Provides alternative methods that are no
less restrictive than subsections (a)(1)(A) and (a)(1)(B) and no less
protective of human health or the environment, as approved in writing by
OSFM.
b) Owners and
operators of UST systems with spill and overfill prevention equipment must meet
the requirements of subsections (b) and (c) and shall ensure the equipment is
operating properly and will prevent releases to the environment. Spill
prevention equipment (such as a catchment basin, spill bucket, or other spill
containment device) must prevent releases to the environment by being tested at
installation, immediately after any repairs, and at least once every three
years to ensure the equipment is liquid tight by using vacuum, pressure or
liquid testing in accordance with one of the following criteria:
1) Requirements developed by the manufacturer
of the spill prevention equipment. Owners and operators may use this option
only if the manufacturer has developed requirements;
2) Requirements developed by the manufacturer
of the testing equipment; or
3) A
hydrostatic test that meets the requirements of Section
175.410(j).
c) Overfill prevention equipment
must be inspected at installation, immediately after any repairs, and at least
once every three years, and the inspection shall meet the following criteria:
1) At a minimum, the inspection must ensure
that overfill prevention equipment is set to activate at the correct level
specified in subsection (a);
2) The
overfill prevention equipment will activate when the regulated substance
reaches that level; and
3)
Inspections must be conducted in accordance with inspection requirements
developed by the manufacturer.
d) Owners and operators must maintain the
following records for spill prevention equipment and overfill prevention
equipment:
1) All records of installation
shall be maintained for the life of the equipment; and
2) All records of testing or inspection must
be maintained for three years.
e) Ball float overfill devices for overfill
prevention shall not be installed on new and existing UST systems after October
13, 2015. If an approved method of overfill prevention is not present on a UST
when a ball float overfill device fails inspection, overfill prevention
equipment meeting the requirements of this Section shall be
installed.
f) A UST that is filled
by transfers of no more than 25 gallons at one time shall require spill
containment but does not require overfill prevention.
g) In addition to the requirements of this
Section, used oil tanks shall be equipped with spill containment devices at all
fill and retrieval points.
h) All
testing and inspections required by this Section shall be performed:
1) By an OSFM-licensed contractor that has
licensure in the installation/retrofitting or inspection and testing of UST
equipment module; and
2) Using an
employee of the OSFM-licensed contractor for testing or inspection who is
certified in the installation-retrofitting or inspection and testing of UST
equipment module.
i) The
failure to have any functional overfill prevention equipment will result in the
immediate application of a red tag to the USTs missing such
equipment.
