Ohio Admin. Code 3745-51-784 - Tanks - air emission standards for tanks and containers
(A)
This rule applies to the control of air pollutant
emissions from tanks for which paragraph (B) of rule
3745-51-782 of the
Administrative Code references the use of this rule for such air emission
control.
(B)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall control air pollutant emissions from
each tank subject to this rule in accordance with the following requirements as
applicable:
(1)
For a tank that manages hazardous secondary material that
meets all of the conditions specified in paragraphs (B)(1)(a) to (B)(1)(c) of
this rule, the remanufacturer or other person who stores or treats the
hazardous secondary material shall control air pollutant emissions from the
tank in accordance with the "Tank Level 1" controls specified in paragraph (C)
of this rule or the "Tank Level 2" controls specified in paragraph (D) of this
rule.
(a)
The
hazardous secondary material in the tank has a maximum organic vapor pressure
which is less than the maximum organic vapor pressure limit for the tank's
design capacity category as follows:
(i)
For a tank design capacity equal to or greater than one
hundred fifty-one cubic meters (m3), the maximum
organic vapor pressure limit for the tank is 5.2 kilopascals
(kPa).
(ii)
For a tank design capacity equal to or greater than
seventy-five m3 but less than one hundred fifty-one
m3, the maximum organic vapor pressure limit for the
tank is 27.6 kPa.
(iii)
For a tank design capacity less than seventy-five
m3, the maximum organic vapor pressure limit for the
tank is 76.6 kPa.
(b)
The hazardous
secondary material in the tank is not heated by the remanufacturer or other
person who stores or treats the hazardous secondary material to a temperature
that is greater than the temperature at which the maximum organic vapor
pressure of the hazardous secondary material is determined for the purpose of
complying with paragraph (B)(1)(a) of this rule.
(2)
For a tank that
manages hazardous secondary material that does not meet all of the conditions
specified in paragraphs (B)(1)(a) to (B)(1)(c) of this rule, the remanufacturer
or other person stores or treats the hazardous secondary material shall control
air pollutant emissions from the tank by using "Tank Level 2" controls in
accordance with the requirements of paragraph (D) of this rule. An example of
tanks required to use "Tank Level 2" controls is a tank for which the hazardous
secondary material in the tank has a maximum organic vapor pressure that is
equal to or greater than the maximum organic vapor pressure limit for the
tank's design capacity category as specified in paragraph (B)(1)(a) of this
rule.
(C)
Remanufacturers or other persons who store or treats
the hazardous secondary material controlling air pollutant emissions from a
tank using "Tank Level 1" controls shall meet the requirements specified in
paragraphs (C)(1) to (C)(4) of this rule:
(1)
The
remanufacturer or other person who stores or treats that hazardous secondary
material shall determine the maximum organic vapor pressure for a hazardous
secondary material to be managed in the tank using "Tank Level 1" controls
before the first time the hazardous secondary material is placed in the tank.
The maximum organic vapor pressure shall be determined using the procedures
specified in paragraph (C) of rule
3745-51-783 of the
Administrative Code. Thereafter, the remanufacturer or other person who stores
or treats the hazardous secondary material shall perform a new determination
whenever changes to the hazardous secondary material managed in the tank could
potentially cause the maximum organic vapor pressure to increase to a level
that is equal to or greater than the maximum organic vapor pressure limit for
the tank design capacity category specified in paragraph (B)(1)(a) of this
rule, as applicable to the tank.
(2)
The tank shall be
equipped with a fixed roof designed to meet the following specifications:
(a)
The fixed roof
and the fixed roof 's closure devices shall be designed to form a continuous
barrier over the entire surface area of the hazardous secondary material in the
tank. The fixed roof may be a separate cover installed on the tank (e.g., a
removable cover mounted on an open-top tank) or may be an integral part of the
tank structural design (e.g., a horizontal cylindrical tank equipped with a
hatch).
(b)
The fixed roof shall be installed in a manner such that
there are no visible cracks, holes, gaps, or other open spaces between roof
section joints or between the interface of the roof edge and the tank
wall.
(c)
Each opening in the fixed roof , and any manifold system
associated with the fixed roof , shall be either:
(i)
Equipped with a
closure device designed to operate such that when the closure device is secured
in the closed position there are no visible cracks, holes, gaps, or other open
spaces in the closure device or between the perimeter of the opening and the
closure device ; or
(ii)
Connected by a closed-vent system that is vented to a
control device . The control device shall remove or destroy organics in the vent
stream, and shall be operating whenever hazardous secondary material is managed
in the tank, except as provided for in paragraphs (C)(2)(c)(ii)(1) to
(C)(2)(c)(ii)(2) of this rule.
(a)
During periods when it is necessary to provide access
to the tank for performing the activities of paragraph (C)(2)(c)(ii)(2) of this
rule, venting of the vapor headspace underneath the fixed roof to the control
device is not required, opening of closure devices is allowed, and removal of
the fixed roof is allowed. After completion of the activity, the remanufacturer
or other person who stores or treats the hazardous secondary material shall
promptly secure the closure device in the closed position or reinstall the
cover , as applicable, and resume operation of the control
device .
(b)
During periods of routine inspection, maintenance, or
other activities needed for normal operations, and for removal of accumulated
sludge or other residues from the bottom of the tank.
(d)
The fixed roof and the fixed roof 's closure devices
shall be made of suitable materials that will minimize exposure of the
hazardous secondary material to the atmosphere, to the extent practical, and
will maintain the integrity of the fixed roof and closure devices throughout
their intended service life. Factors to be considered when selecting the
materials for and designing the fixed roof and closure devices shall include
organic vapor permeability, the effects of any contact with the hazardous
secondary material or its vapors managed in the tank; the effects of outdoor
exposure to wind, moisture, and sunlight; and the operating practices used for
the tank on which the fixed roof is installed.
(3)
Whenever a
hazardous secondary material is in the tank, the fixed roof shall be installed
with each closure device secured in the closed position except as
follows:
(a)
Opening of closure devices or removal of the fixed roof is
allowed at the following times:
(i)
To provide access to the tank for performing routine
inspection, maintenance, or other activities needed for normal operations.
Examples of such activities include those times when a worker needs to open a
port to sample the liquid in the tank, or when a worker needs to open a hatch
to maintain or repair equipment . After completion of the activity, the
remanufacturer or other person who stores or treats the hazardous secondary
material shall promptly secure the closure device in the closed position or
reinstall the cover , as applicable, to the tank.
(ii)
To remove
accumulated sludge or other residues from the bottom of tank.
(b)
Opening of a spring-loaded pressure-vacuum relief valve,
conservation vent, or similar type of pressure relief device which vents to the
atmosphere is allowed during normal operations for the purpose of maintaining
the tank internal pressure in accordance with the tank design specifications.
The device shall be designed to operate with no detectable organic emissions
when the device is secured in the closed position. The settings at which the
device opens shall be established such that the device remains in the closed
position whenever the tank internal pressure is within the internal pressure
operating range determined by the remanufacturer or other person who stores or
treats the hazardous secondary material based on the tank manufacturer
recommendations, applicable regulations, fire protection and prevention codes,
standard engineering codes and practices, or other requirements for the safe
handling of flammable, ignitable, explosive, reactive, or hazardous materials .
Examples of normal operating conditions that may require these devices to open
are during those times when the tank internal pressure exceeds the internal
pressure operating range for the tank as a result of loading operations or
diurnal ambient temperature fluctuations.
(c)
Opening of a
"safety device ," as defined in rule
3745-51-781 of the
Administrative Code, is allowed at any time conditions require doing so to
avoid an unsafe condition.
(4)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall inspect the air emission control equipment in accordance with
the following requirements
(a)
The fixed roof and the fixed roof 's closure devices
shall be visually inspected by the remanufacturer or other person who stores or
treats the hazardous secondary material to check for defects that could result
in air pollutant emissions. Defects include, but are not limited to, visible
cracks, holes, or gaps in the roof sections or between the roof and the tank
wall; broken, cracked, or otherwise damaged seals or gaskets on closure
devices; and broken or missing hatches, access covers, caps, or other closure
devices.
(b)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall perform an initial inspection of the
fixed roof and the fixed roof 's closure devices on or before the date that the
tank becomes subject to this rule. Thereafter, the remanufacturer or other
person who stores or treats the hazardous secondary material shall perform the
inspections at least once every year except under the special conditions
provided for in paragraph (L) of this rule.
(c)
In the event that
a defect is detected, the remanufacturer or other person who stores or treats
the hazardous secondary material shall repair the defect in accordance with the
requirements of paragraph (K) of this rule.
(d)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall maintain a record of the inspection in accordance with the
requirements specified in paragraph (B) of rule
3745-51-789 of the
Administrative Code.
(D)
Remanufacturers
or other persons who store or treat the hazardous secondary material
controlling air pollutant emissions from a tank using "Tank Level 2" controls
shall use one of the following tanks:
(1)
A fixed-roof tank
equipped with an internal floating roof in accordance with the requirements
specified in paragraph (E) of this rule;
(2)
A tank equipped
with an external floating roof in accordance with the requirements specified in
paragraph (F) of this rule;
(3)
A tank vented
through a closed-vent system to a control device in accordance with the
requirements specified in paragraph (G) of this rule;
(4)
A pressure tank
designed and operated in accordance with the requirements specified in
paragraph (H) of this rule; or
(5)
A tank located
inside an enclosure that is vented through a closed-vent system to an enclosed
combustion control device in accordance with the requirements specified in
paragraph (I) of this rule.
(E)
The
remanufacturer or other person who stores or treats the hazardous secondary
material who controls air pollutant emissions from a tank using a fixed roof
with an internal floating roof shall meet the requirements specified in
paragraphs (E)(1) to (E)(3) of this rule.
(1)
The tank shall be
equipped with a fixed roof and an internal floating roof in accordance with the
following requirements:
(a)
The internal floating roof shall be designed to float
on the liquid surface except when the floating roof shall be supported by the
leg supports.
(b)
The internal floating roof shall be equipped with a
continuous seal between the wall of the tank and the floating roof edge that
meets either of the following requirements:
(i)
A single
continuous seal that is either a "liquid-mounted seal " or a "metallic shoe
seal ," as defined in rule
3745-51-781 of the
Administrative Code; or
(ii)
Two continuous seals mounted one above the other. The
lower seal may be a vapor-mounted seal .
(c)
The internal
floating roof shall meet the following specifications:
(i)
Each opening in a
noncontact internal floating roof except for automatic bleeder vents (vacuum
breaker vents) and the rim space vents is to provide a projection below the
liquid surface.
(ii)
Each opening in the internal floating roof shall be
equipped with a gasketed cover or a gasketed lid except for leg sleeves,
automatic bleeder vents, rim space vents, column wells, ladder wells, sample
wells, and stub drains.
(iii)
Each penetration of the internal floating roof for the
purpose of sampling shall have a slit fabric cover that covers at least ninety
per cent of the opening.
(iv)
Each automatic bleeder vent and rim space vent shall be
gasketed.
(v)
Each penetration of the internal floating roof that
allows for passage of a ladder shall have a gasketed sliding
cover .
(vi)
Each penetration of the internal floating roof that
allows for passage of a column supporting the fixed roof shall have a flexible
fabric sleeve seal or a gasketed sliding cover .
(2)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall operate the tank in accordance with the following
requirements:
(a)
When the floating roof is resting on the leg supports,
the process of filling, emptying, or refilling shall be continuous and shall be
completed as soon as practical.
(b)
Automatic bleeder
vents are to be set closed at all times when the roof is floating, except when
the roof is being floated off or is being landed on the leg
supports.
(c)
Prior to filling the tank, each cover , access hatch,
gauge float well or lid on any opening in the internal floating roof shall be
bolted or fastened closed (i.e., no visible gaps). Rim space vents are to be
set to open only when the internal floating roof is not floating or when the
pressure beneath the rim exceeds the manufacturer's recommended
setting.
(3)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall inspect the internal floating roof in
accordance with the procedures specified as follows:
(a)
The floating roof
and the floating roof 's closure devices shall be visually inspected by the
remanufacture or other person who stores or treats the hazardous secondary
material to check for defects that could result in air pollutant emissions.
Defects include, but are not limited to, the internal floating roof is not
floating on the surface of the liquid inside the tank; liquid has accumulated
on top of the internal floating roof ; any portion of the roof seals have
detached from the roof rim; holes, tears, or other openings are visible in the
seal fabric; the gaskets no longer close off the hazardous secondary material
surface from the atmosphere; or the slotted membrane has more than ten per cent
open area.
(b)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall inspect the internal floating roof
components as follows except as provided in paragraph (E)(3)(c) of this
rule:
(i)
Visually inspect the internal floating roof components
through openings on the fixed-roof (e.g., manholes and roof hatches) at least
once every twelve months after initial fill, and
(ii)
Visually inspect
the internal floating roof , primary seal, secondary seal (if one is in
service), gaskets, slotted membranes, and sleeve seals (if any) each time the
tank is emptied and degassed and at least every ten years.
(c)
As an
alternative to performing the inspections specified in paragraph (E)(3)(b) of
this rule for an internal floating roof equipped with two continuous seals
mounted one above the other, the remanufacturer or other person who stores or
treats the hazardous secondary material may visually inspect the internal
floating roof , primary and secondary seals, gaskets, slotted membranes, and
sleeve seals (if any) each time the tank is emptied and degassed and at least
every five years.
(d)
Prior to each inspection required by paragraph
(E)(3)(b) or (E)(3)(c) of this rule, the remanufacturer or other person who
stores or treats the hazardous secondary material shall notify the director in
advance of each inspection to provide the director with the opportunity to have
an observer present during the inspection. The remanufacturer or other person
who stores or treats the hazardous secondary material shall notify the director
of the date and location of the inspection as follows:
(i)
Prior to each
visual inspection of an internal floating roof in a tank that has been emptied
and degassed, written notification shall be prepared and sent by the
remanufacturer or other person who stores or treats the hazardous secondary
material so that the notification is received by the director at least thirty
calendar days before refilling the tank except when an inspection is not
planned as provided for in paragraph (E)(3)(d)(ii) of this
rule.
(ii)
When a visual inspection is not planned and the
remanufacturer or other person who stores or treats the hazardous secondary
material could not have known about the inspection thirty calendar days before
refilling the tank, the remanufacturer or other person who stores or treats the
hazardous secondary material shall notify the director as soon as possible, but
no later than seven calendar days before refilling of the tank. This
notification may be made by telephone and immediately followed by a written
explanation for why the inspection is unplanned. Alternatively, written
notification, including the explanation for the unplanned inspection, may be
sent so that the notification is received by the director at least seven
calendar days before refilling the tank.
(e)
In the event that
a defect is detected, the remanufacturer or other person who stores or treats
the hazardous secondary material shall repair the defect in accordance with the
requirements of paragraph (K) of this rule.
(f)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall maintain a record of the inspection in accordance with the
requirements specified in paragraph (B) of rule
3745-51-789 of the
Administrative Code.
(4)
"Safety devices,"
as defined in rule
3745-51-781 of the
Administrative Code, may be installed and operated as necessary on any tank
complying with the requirements of paragraph (E) of this rule.
(F)
The
remanufacturer or other person who stores or treats the hazardous secondary
material who controls air pollutant emissions from a tank using an external
floating roof shall meet the requirements specified in paragraphs (F)(1) to
(F)(3) of this rule.
(1)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall design the external floating roof in
accordance with the following requirements:
(a)
The external
floating roof shall be designed to float on the liquid surface except when the
floating roof shall be supported by the leg supports.
(b)
The floating roof
shall be equipped with two continuous seals, one above the other, between the
wall of the tank and the roof edge. The lower seal is referred to as the
primary seal, and the upper seal is referred to as the secondary seal.
(i)
The primary seal
shall be a "liquid-mounted seal " or a "metallic shoe seal ," as defined in rule
3745-51-781 of the
Administrative Code. The total area of the gaps between the tank wall and the
primary seal shall not exceed two hundred twelve square centimeters
(cm2) per meter of tank diameter, and the width of
any portion of these gaps shall not exceed 3.8 centimeters (cm). If a metallic
shoe seal is used for the primary seal, the metallic shoe seal shall be
designed so that one end extends into the liquid in the tank and the other end
extends a vertical distance of at least sixty-one centimeters above the liquid
surface.
(ii)
The secondary seal shall be mounted above the primary
seal and cover the annular space between the floating roof and the wall of the
tank. The total area of the gaps between the tank wall and the secondary seal
shall not exceed 21.2 square centimeters (cm2) per
meter of tank diameter, and the width of any portion of these gaps shall not
exceed 1.3 centimeters (cm).
(c)
The external
floating roof shall meet the following specifications:
(i)
Except for
automatic bleeder vents (vacuum breaker vents) and rim space vents, each
opening in a noncontact external floating roof shall provide a projection below
the liquid surface.
(ii)
Except for automatic bleeder vents, rim space vents,
roof drains, and leg sleeves, each opening in the roof shall be equipped with a
gasketed cover , seal, or lid.
(iii)
Each access
hatch and each gauge float well shall be equipped with a cover designed to be
bolted or fastened when the cover is secured in the closed
position.
(iv)
Each automatic bleeder vent and each rim space vent
shall be equipped with a gasket.
(v)
Each roof drain
that empties into the liquid managed in the tank shall be equipped with a
slotted membrane fabric cover that covers at least ninety per cent of the area
of the opening.
(vi)
Each unslotted and slotted guide pole well shall be
equipped with a gasketed sliding cover or a flexible fabric sleeve
seal.
(vii)
Each unslotted guide pole shall be equipped with a
gasketed cap on the end of the pole.
(viii)
Each slotted
guide pole shall be equipped with a gasketed float or other device which closes
off the liquid surface from the atmosphere.
(ix)
Each gauge hatch
and each sample well shall be equipped with a gasketed cover .
(2)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall operate the tank in accordance with the
following requirements:
(a)
When the floating roof is resting on the leg supports,
the process of filling, emptying, or refilling shall be continuous and shall be
completed as soon as practical.
(b)
Except for
automatic bleeder vents, rim space vents, roof drains, and leg sleeves, each
opening in the roof shall be secured and maintained in a closed position at all
times except when the closure device shall be open for access.
(c)
Covers on each
access hatch and each gauge float well shall be bolted or fastened when secured
in the closed position.
(d)
Automatic bleeder vents shall be set closed at all
times when the roof is floating, except when the roof is being floated off or
is being landed on the leg supports.
(e)
Rim space vents
shall be set to open only at those times that the roof is being floated off the
roof leg supports or when the pressure beneath the rim seal exceeds the
manufacturer's recommended setting.
(f)
The cap on the
end of each unslotted guide pole shall be secured in the closed position at all
times except when measuring the level or collecting samples of the liquid in
the tank.
(g)
The cover on each gauge hatch or sample well shall be
secured in the closed position at all times except when the hatch or well shall
be opened for access.
(h)
Both the primary seal and the secondary seal shall
completely cover the annular space between the external floating roof and the
wall of the tank in a continuous fashion except during
inspections.
(3)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall inspect the external floating roof in
accordance with the procedures specified as follows:
(a)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall measure the external floating roof seal gaps in accordance with
the following requirements:
(i)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall perform measurements of gaps between the
tank wall and the primary seal within sixty calendar days after initial
operation of the tank after installation of the floating roof and, thereafter,
at least once every five years.
(ii)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall perform measurements of gaps between the tank wall and the
secondary seal within sixty calendar days after initial operation of the tank
after installation of the floating roof and, thereafter, at least once every
year.
(iii)
If a tank ceases to hold hazardous secondary material
for a period of one year or more, subsequent introduction of hazardous
secondary material into the tank shall be considered an initial operation for
the purposes of paragraphs (F)(3)(a)(i) to (F)(3)(a)(ii) of this
rule.
(iv)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall determine the total surface area of gaps
in the primary seal and in the secondary seal individually using the following
procedure:
(a)
The seal gap measurements shall be performed at one or more
floating roof levels when the roof is floating off the roof
supports.
(b)
Seal gaps, if any, shall be measured around the entire
perimeter of the floating roof in each place where a 0.32 -centimeter (cm)
diameter uniform probe passes freely (without forcing or binding against the
seal) between the seal and the wall of the tank and measure the circumferential
distance of each such location.
(c)
For a seal gap
measured under paragraph (F)(3) of this rule, the gap surface area shall be
determined by using probes of various widths to measure accurately the actual
distance from the tank wall to the seal and multiplying each such width by its
respective circumferential distance.
(d)
The total gap
area shall be calculated by adding the gap surface areas determined for each
identified gap location for the primary seal and the secondary seal
individually, and then dividing the sum for each seal type by the nominal
diameter of the tank. These total gap areas for the primary seal and secondary
seal are then compared to the respective standards for the seal type as
specified in paragraph (F)(1)(b) of this rule.
(v)
In the event that
the seal gap measurements do not conform to the specifications in paragraph
(F)(1)(b) of this rule, the remanufacturer or other person who stores or treats
the hazardous secondary material shall repair the defect in accordance with the
requirements of paragraph (K) of this rule.
(vi)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall maintain a record of the inspection in accordance with the
requirements specified in paragraph (B) of rule
3745-51-789 of the
Administrative Code.
(b)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall visually inspect the external floating roof in accordance with
the following requirements:
(i)
The floating roof and the floating roof 's closure
devices shall be visually inspected by the remanufacturer or other person who
stores or treats the hazardous secondary material to check for defects that
could result in air pollutant emissions. Defects include, but are not limited
to, holes, tears, or other openings in the rim seal or seal fabric of the
floating roof ; a rim seal detached from the floating roof ; all or a portion of
the floating roof deck being submerged below the surface of the liquid in the
tank; broken, cracked, or otherwise damaged seals or gaskets on closure
devices; and broken or missing hatches, access covers, caps, or other closure
devices.
(ii)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall perform an initial inspection of the
external floating roof and if the external floating roof 's closure devices on
or before the date that the tank becomes subject to this rule. Thereafter, the
remanufacturer or other person who stores or treats the hazardous secondary
material shall perform the inspections at least once every year except for the
special conditions provided for in paragraph (L) of this rule.
(iii)
In the event
that a defect is detected, the remanufacturer or other person who stores or
treats the hazardous secondary material shall repair the defect in accordance
with the requirements of paragraph (K) of this rule.
(iv)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall maintain a record of the inspection in accordance with the
requirements specified in paragraph (B) of rule
3745-51-789 of the
Administrative Code.
(c)
Prior to each
inspection required by paragraph (F)(3)(a) or (F)(3)(b) of this rule, the
remanufacturer or other person who stores or treats the hazardous secondary
material shall notify the director in advance of each inspection to provide the
director with the opportunity to have an observer present during the
inspection. The remanufacturer or other person who stores or treats the
hazardous secondary material shall notify the director of the date and location
of the inspection as follows:
(i)
Prior to each inspection to measure external floating
roof seal gaps as required under paragraph (F)(3)(a) of this rule, written
notification shall be prepared and sent by the remanufacturer or other person
who stores or treats the hazardous secondary material so that the notification
is received by the director at least thirty calendar days before the date the
measurements are scheduled to be performed.
(ii)
Prior to each
visual inspection of an external floating roof in a tank that has been emptied
and degassed, written notification shall be prepared and sent by the
remanufacturer or other person who stores or treats the hazardous secondary
material so that the notification is received by the director at least thirty
calendar days before refilling the tank except when an inspection is not
planned as provided for in paragraph (F)(3)(c)(iii) of this
rule.
(iii)
When a visual inspection is not planned and the
remanufacturer or other person who stores or treats the hazardous secondary
material could not have known about the inspection thirty calendar days before
refilling the tank, the owner or operator shall notify the director as soon as
possible, but no later than seven calendar days before refilling of the tank.
This notification may be made by telephone and immediately followed by a
written explanation for why the inspection is unplanned. Alternatively, written
notification, including the explanation for the unplanned inspection, may be
sent so that the notification is received by the director at least seven
calendar days before refilling the tank.
(4)
"Safety devices,"
as defined in rule
3745-51-781 of the
Administrative Code, may be installed and operated as necessary on any tank
complying with the requirements of paragraph (F) of this rule.
(G)
The
remanufacturer or other person who stores or treats the hazardous secondary
material who controls air pollutant emissions from a tank by venting the tank
to a control device shall meet the requirements specified in paragraphs (G)(1)
to (G)(3) of this rule.
(1)
The tank shall be covered by a fixed roof and vented
directly through a closed-vent system to a control device in accordance with
the following requirements:
(a)
The fixed roof and the fixed roof 's closure devices
shall be designed to form a continuous barrier over the entire surface area of
the liquid in the tank.
(b)
Each opening in the fixed roof not vented to the
control device shall be equipped with a closure device . If the pressure in the
vapor headspace underneath the fixed roof is less than atmospheric pressure
when the control device is operating, the closure devices shall be designed to
operate such that when the closure device is secured in the closed position
there are no visible cracks, holes, gaps, or other open spaces in the closure
device or between the perimeter of the cover opening and the closure device . If
the pressure in the vapor headspace underneath the fixed roof is equal to or
greater than atmospheric pressure when the control device is operating, the
closure device shall be designed to operate with no detectable organic
emissions .
(c)
The fixed roof and the fixed roof 's closure devices
shall be made of suitable materials that will minimize exposure of the
hazardous secondary material to the atmosphere, to the extent practical, and
will maintain the integrity of the fixed roof and closure devices throughout
the intended service life of the fixed roof and closure devices. Factors to be
considered when selecting the materials for and designing the fixed roof and
closure devices shall include organic vapor permeability, the effects of any
contact with the liquid and the liquid's vapor managed in the tank; the effects
of outdoor exposure to wind, moisture, and sunlight; and the operating
practices used for the tank on which the fixed roof is
installed.
(d)
The closed-vent system and control device shall be
designed and operated in accordance with the requirements of rule
3745-51-787 of the
Administrative Code.
(2)
Whenever a
hazardous secondary material is in the tank, the fixed roof shall be installed
with each closure device secured in the closed position and the vapor headspace
underneath the fixed roof vented to the control device except as follows:
(a)
Venting to the
control device is not required, and opening of closure devices or removal of
the fixed roof is allowed at the following times:
(i)
To provide access
to the tank for performing routine inspection, maintenance, or other activities
needed for normal operations. Examples of such activities include those times
when a worker needs to open a port to sample liquid in the tank, or when a
worker needs to open a hatch to maintain or repair equipment . After completion
of the activity, the remanufacturer or other person who stores or treats the
hazardous secondary material shall promptly secure the closure device in the
closed position or reinstall the cover , as applicable, to the
tank.
(ii)
To remove accumulated sludge or other residues from the
bottom of a tank.
(b)
Opening of a
"safety device ," as defined in rule
3745-51-781 of the
Administrative Code, is allowed at any time conditions require doing so to
avoid an unsafe condition.
(3)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall inspect and monitor the air emission control equipment in
accordance with the following procedures:
(a)
The fixed roof
and the fixed roof 's closure devices shall be visually inspected by the
remanufacturer or other person who stores or treats the hazardous secondary
material to check for defects that could result in air pollutant emissions.
Defects include, but are not limited to, visible cracks, holes, or gaps in the
roof sections or between the roof and the tank wall; broken, cracked, or
otherwise damaged seals or gaskets on closure devices; and broken or missing
hatches, access covers, caps, or other closure devices.
(b)
The closed-vent
system and control device shall be inspected and monitored by the
remanufacturer or other person who stores or treats the hazardous secondary
material in accordance with the procedures specified in rule
3745-51-787 of the
Administrative Code.
(c)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall perform an initial inspection of the air
emission control equipment on or before the date that the tank becomes subject
to this rule. Thereafter, the remanufacturer or other person who stores or
treats the hazardous secondary material shall perform the inspections at least
once every year except for the special conditions provided for in paragraph (L)
of this rule.
(d)
In the event that a defect is detected, the
remanufacture or other person who stores or treats the hazardous secondary
material shall repair the defect in accordance with the requirements of
paragraph (K) of this rule.
(e)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall maintain a record of the inspection in accordance with the
requirements specified in paragraph (B) of rule
3745-51-789 of the
Administrative Code.
(H)
The
remanufacturer or other person who stores or treats the hazardous secondary
material who controls air pollutant emissions by using a pressure tank shall
meet the following requirements.
(1)
The tank shall be designed not to vent to the
atmosphere as a result of compression of the vapor headspace in the tank during
filling of the tank to the tank's design capacity.
(2)
All tank openings
shall be equipped with closure devices designed to operate with no detectable
organic emissions as determined using the procedure specified in paragraph (D)
of rule 3745-51-783 of the
Administrative Code.
(3)
Whenever a hazardous secondary material is in the tank,
the tank shall be operated as a closed system that does not vent to the
atmosphere except under either or the following conditions as specified in
paragraph (H)(3)(a) or (H)(3)(b) of this rule.
(a)
At those times
when opening of a "safety device ," as defined in rule
3745-51-781 of the
Administrative Code, is required to avoid an unsafe condition.
(b)
At those times
when purging of inerts from the tank is required and the purge stream is routed
to a closed-vent system and control device designed and operated in accordance
with the requirements of rule
3745-51-787 of the
Administrative Code.
(I)
The
remanufacturer or other person who stores or treats the hazardous secondary
material who controls air pollutant emissions by using an enclosure vented
through a closed-vent system to an enclosed combustion control device shall
meet the requirements specified in paragraphs (I)(1) to (I)(4) of this
rule.
(1)
The
tank shall be located inside an enclosure . The enclosure shall be designed and
operated in accordance with the criteria for a permanent total enclosure as
specified in "Procedure T- Criteria for and Verification of a Permanent or
Temporary Total Enclosure " under
40 CFR
52.741 appendix B. The enclosure may have
permanent or temporary openings to allow worker access; passage of material
into or out of the enclosure by conveyor, vehicles, or other mechanical means;
entry of permanent mechanical or electrical equipment ; or direct airflow into
the enclosure . The remanufacturer or other person who stores or treats the
hazardous secondary material shall perform the verification procedure for the
enclosure as specified in section 5.0 to "Procedure T- Criteria for and
Verification of a Permanent or Temporary Total Enclosure " initially when the
enclosure is first installed and, thereafter, annually.
(2)
The enclosure
shall be vented through a closed-vent system to an enclosed combustion control
device that is designed and operated in accordance with the standards for
either a vapor incinerator , boiler, or process heater specified in rule
3745-51-787 of the
Administrative Code.
(3)
"Safety devices," as defined in rule
3745-51-781 of the
Administrative Code, may be installed and operated as necessary on any
enclosure , closed-vent system , or control device used to comply with the
requirements of paragraphs (I)(1) to (I)(2) of this rule.
(4)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall inspect and monitor the closed-vent system and control device as
specified in rule
3745-51-787 of the
Administrative Code.
(J)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall transfer hazardous secondary material to a tank subject to this
rule in accordance with the following requirements:
(1)
Transfer of
hazardous secondary material, except as provided in paragraph (J)(2) of this
rule, to the tank from another tank subject to this rule shall be conducted
using continuous hard-piping or another closed system that does not allow
exposure of the hazardous secondary material to the atmosphere. For the purpose
of complying with this provision, an individual drain system is considered to
be a closed system when the individual drain system meets the requirements of
40 CFR Part 63 subpart RR- "National Emission Standards for Individual Drain
Systems."
(2)
The requirements of paragraph (J)(1) of this rule do
not apply when transferring a hazardous secondary material to the tank under
any of the following conditions:
(a)
The hazardous secondary material meets the average VO
concentration conditions specified in paragraph (C)(1) of rule
3745-51-782 of the
Administrative Code at the point of material origination .
(b)
The hazardous
secondary material has been treated by an organic destruction or removal
process to meet the requirements in paragraph (C)(2) of rule
3745-51-782 of the
Administrative Code.
(c)
The hazardous secondary material meets the requirements
of paragraph (C)(4) of rule
3745-51-782 of the
Administrative Code.
(K)
The
remanufacturer or other person who stores or treats the hazardous secondary
material shall repair each defect detected during an inspection performed in
accordance with the requirements of paragraph (C)(4), (E)(3), (F)(3), or (G)(3)
of this rule as follows:
(1)
The remanufacturer or other person who stores or treats
the hazardous secondary material shall make first efforts at repair of the
defect no later than five calendar days after detection, and repair shall be
completed as soon as possible but no later than forty-five calendar days after
detection except as provided in paragraph (K)(2) of this rule.
(2)
Repair of a
defect may be delayed beyond forty-five calendar days if the remanufacturer or
other person who stores or treats the hazardous secondary material determines
that repair of the defect requires emptying or temporary removal from service
of the tank and no alternative tank capacity is available at the site to accept
the hazardous secondary material normally managed in the tank. In this case,
the remanufacturer or other person who stores or treats the hazardous secondary
material shall repair the defect the next time the process or unit that is
generating the hazardous secondary material managed in the tank stops
operation. Repair of the defect shall be completed before the process or unit
resumes operation.
(L)
After the initial
inspection and monitoring of the cover as required by the applicable provisions
of rules
3745-51-780 to
3745-51-789 of the
Administrative Code, subsequent inspection and monitoring may be performed at
intervals longer than one year under the following special conditions:
(1)
In the case when
inspecting or monitoring the cover would expose a worker to dangerous,
hazardous, or other unsafe conditions, then the remanufacturer or other person
who stores or treats the hazardous secondary material may designate a cover as
an "unsafe to inspect and monitor cover " and comply with all of the following
requirements:
(a)
Prepare a written explanation for the cover stating the
reasons why the cover is unsafe to visually inspect or monitor, if
required.
(b)
Develop and implement a written plan and schedule to
inspect and monitor the cover , using the procedures specified in the applicable
provision of rules
3745-51-780 to
3745-51-789 of the
Administrative Code, as frequently as practicable during those times when a
worker can safely access the cover .
(2)
In the case when
a tank is buried partially or entirely underground, a remanufacturer or other
person who stores or treats the hazardous secondary material is required to
inspect and monitor, as required by the applicable provisions of this rule,
only those portions of the tank cover and those connections to the tank (e.g.,
fill ports, access hatches, gauge wells, etc.) that are located on or above the
ground surface.
Notes
Five Year Review (FYR) Dates: Exempt
Promulgated Under: 119.03
Statutory Authority: 3734.12
Rule Amplifies: 3734.12
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