Current through Register Vol. 50, No. 9, September 20, 2024
A. No person shall place, store, or hold in
any stationary tank, reservoir, or other container of more than 250 gallons
(950 liters) and up to 40,000 gallons (151,400 liters) nominal capacity any
volatile organic compound, having a maximum true vapor pressure of 1.5 psia or
greater at storage conditions, unless such tank, reservoir, or other container
is designed and equipped with a submerged fill pipe or a vapor loss control
system, as defined in Subsection E of this Section, or is a pressure tank
capable of maintaining working pressures sufficient at all times under normal
operating conditions to prevent vapor or gas loss to the atmosphere.
B. No person shall place, store, or hold in
any stationary tank, reservoir, or other container of more than 40,000 gallons
(151,400 liters) nominal capacity any volatile organic compound having a
maximum true vapor pressure of 1.5 psia or greater at storage conditions unless
such tank, reservoir, or other container is a pressure tank capable of
maintaining working pressures sufficient at all times under normal operating
conditions to prevent vapor or gas loss to the atmosphere or is designed and
equipped with a submerged fill pipe and one or more of the vapor loss control
devices described in Subsections C, D, and E of this Section.
C. Internal Floating Roof. An internal
floating roof consists of a pontoon type roof, double deck type roof, or
internal floating cover which will rest or float on the surface of the liquid
contents and is equipped with a closure seal to close the space between the
roof edge and tank wall. All tank gauging and sampling devices shall be gas
tight except when gauging or sampling is taking place. If the organic compounds
have a vapor pressure of 11.0 psia or greater under actual storage conditions,
the requirements of Subsection F of this Section shall supersede the
requirements of this Subsection. In the parishes of Ascension, Calcasieu, East
Baton Rouge, Iberville, Livingston, Pointe Coupee, and West Baton Rouge, the
following additional requirements apply:
1.
The closure seal shall consist of either:
a.
a liquid mounted seal consisting of a foam- or liquid-filled seal mounted in
contact with the liquid between the wall of the storage vessel and the floating
roof continuously around the circumference of the tank;
b. a mechanical shoe seal (metallic-type shoe
seal) consisting of a metal sheet held vertically against the wall of the
storage vessel by springs or weighted levers and connected by braces to the
floating roof. A flexible coated fabric (envelope) spans the annular space
between the metal sheet and the floating roof; or
c. two seals mounted one above the other so
that each forms a continuous closure that completely covers the space between
the wall of the storage vessel and the edge of the internal floating roof. The
lower seal may be vapor-mounted, but both must be continuous.
2. Each opening in the internal
floating roof (except rim space vents and automatic bleeder vents) shall be
provided with a projection below the liquid surface. In addition, each opening
(except for leg sleeves, bleeder vents, rim space vents, column wells, ladder
wells, sample wells, and stub drains) shall be provided with a cover equipped
with a gasket. Automatic bleeder vents and rim space vents shall be gasketed
and ladder wells shall be equipped with a sliding cover.
3. If the internal floating roof does not
meet the specifications of this rule, then the specifications shall be met at
the earlier of either the next scheduled maintenance turnaround (when
deinventorying and degassing occurs) or December 1, 2005. Any request for an
extension beyond December 1, 2005, shall be examined on a case-by-case basis
and must be approved by the administrative authority*.
D. External Floating Roof. An external
floating roof consists of a pontoon type roof, double deck type roof, or
external floating cover which will rest or float on the surface of the liquid
contents and is equipped with a primary closure seal to close the space between
the roof edge and tank wall and a continuous secondary seal (a rim mounted
secondary) extending from the floating roof to the tank wall. In the parishes
of Ascension, Calcasieu, East Baton Rouge, Iberville, Livingston, Pointe
Coupee, and West Baton Rouge, the primary closure seal shall consist of a
liquid mounted seal or a mechanical shoe seal, as defined in Subparagraphs
C.1.a and b of this Section. Installation of the primary and secondary seals in
these parishes shall be within the same time requirements as stipulated in
Paragraph C.3 of this Section.
1. A secondary
seal is not required if:
a. the tank is a
welded tank storing a VOC with a vapor pressure at storage conditions less than
4.0 psia and is also equipped with a liquid mounted seal, a mechanical shoe
seal, or a seal deemed equivalent by the administrative authority*;
b. the storage vessels are external floating
roof tanks having nominal storage capacities of 420,000 gallons (1,589,900
liters) or less used to store produced crude oil or condensate prior to lease
custody transfer;
c. a mechanical
shoe seal is used in a welded tank which also has a secondary seal from the top
of the shoe seal to the tank wall (i.e., a shoe-mounted secondary);
d. an alternate seal or seals can be used in
lieu of the primary and secondary seals required herein provided the resulting
emission is not greater than that which would have resulted if the primary and
secondary seals were installed. The equivalency demonstration will be made to
the satisfaction of the administrative authority*.
2. The seal closure devices required in LAC
33:III.2103.D shall:
a. have no visible
holes, tears, or other openings in the seal(s) or seal(s) fabric;
b. be intact and uniformly in place around
the circumference of the floating roof and the tank wall;
c. not have gap areas, of gaps exceeding 1/8
inch (0.32 cm) in width between the secondary seal and the tank wall, in excess
of 1.0 in2 per foot of tank diameter (6.5
cm2 per 0.3m);
d. not have gap areas, of gaps exceeding 1/8
inch (0.32 cm) in width between the primary seal and the tank wall, in excess
of 10.0 in2 per foot of tank diameter (65
cm2 per 0.3m);
e. the secondary seals shall be visually
inspected at least semiannually. The secondary seal gap measurements shall be
made annually at any tank level provided the roof is off its legs. The primary
seal gap measurements shall be made every five years at any tank level provided
the roof is off its legs. Conditions not up to standards described in LAC
33:III.2103.D.2 shall be recorded along with date(s) that the standards are not
met and the administrative authority shall be notified within seven days. To
avoid noncompliance with this Section, repairs necessary to be in compliance
must be initiated within seven working days of recognition of defective
conditions by ordering appropriate parts. Repairs shall be completed within
three months of the ordering of the repair parts. However, if it can be
demonstrated that additional time for repair is needed, the administrative
authority may extend this deadline.
3. Requirements for Covering Openings. All
openings in the external floating roof, except for automatic bleeder vents, rim
space vent, and leg sleeves, are to provide a projection below the liquid
surface. Except for automatic bleeder vents, rim space vents, roof drains, and
leg sleeves, each opening in the roof is to be equipped with a cover, seal, or
lid that is to be maintained in a closed position at all times (i.e., no
visible gap) except when the device is in actual use. Automatic bleeder vents
must be closed at all times except when the roof is floated off or landed on
the roof leg supports. Rim vents must be set to open when the roof is being
floated off the roof leg supports or at the manufacturer's recommended setting.
Any emergency roof drain must be equipped with a slotted membrane fabric cover
or equivalent cover that covers at least 90 percent of the opening. In the
parishes of Ascension, Calcasieu, East Baton Rouge, Iberville, Livingston,
Point Coupee, and West Baton Rouge, all covers, seals, lids, automatic bleeder
vents, and rim space vents are to be gasketed.
4. Requirements for Guide Poles and Stilling
Well Systems. Emissions from guide pole systems must be controlled for external
floating roof storage tanks with a capacity greater than 40,000 gallons
(approximately 151 m3) and which store a liquid
having a total vapor pressure of 1.5 psia or greater. The requirements of this
Paragraph shall only apply in the parishes of Ascension, Calcasieu, East Baton
Rouge, Iberville, Livingston, Pointe Coupee, and West Baton Rouge.
a. Controls for nonslotted guide poles and
stilling wells shall include pole wiper and gasketing between the well and
sliding cover. Controls for slotted guide poles shall include a float with
wiper, pole wiper, and gasketing between the well and sliding cover. The
description of the method of control and supporting calculations based upon the
Addendum to American Petroleum Institute Publication Number 2517, Evaporative
Loss from External Floating Roof Tanks, (dated May 1994) shall be submitted to
the Office of Environmental Services for approval prior to
installation.
b. Alternate methods
of controls are acceptable if demonstrated to be equivalent to the controls in
Subparagraph D.4.a of this Section. The administrative authority* must approve
alternate methods of control.
c.
Installation of controls required by Paragraph D.4 of this Section shall be
required by November 15, 1996. Requests for extension of the November 15, 1996,
compliance date will be considered on a case-by-case basis for situations which
require the tank to be removed from service to install the controls and must be
approved by the administrative authority*.
d. Control systems required by Paragraph D.4
of this Section shall be inspected semiannually for rips, tears, visible gaps
in the pole or float wiper, and/or missing sliding cover gaskets. Any rips,
tears, visible gaps in the pole or float wiper, and/or missing sliding cover
gaskets shall be repaired in accordance with this Paragraph in order to avoid
noncompliance. Repairs must be initiated by ordering appropriate parts within
seven working days after a defect listed in this Subparagraph is identified.
Repairs shall be completed within three months of the ordering of the repair
parts. However, if it can be demonstrated that additional time for repair is
needed, the administrative authority may extend this deadline.
E. Vapor Loss Control
System. A vapor loss control system consists of a gathering system capable of
collecting the volatile organic compound (VOC) vapors and a vapor disposal
system capable of processing such organic vapors. All tank gauging and sampling
devices shall be gas-tight except when gauging or sampling is taking place.
1. The vapor loss control system shall reduce
inlet emissions of total volatile organic compounds by 95 percent or
greater.
2. Notwithstanding
Paragraph E.1 of this Section, if the vapor loss control system was installed
on or before December 31, 1992, then the vapor loss control system shall reduce
inlet emissions of total volatile organic compounds by 90 percent or
greater.
3. The specifications and
requirements in Paragraph E.1 or 2 of this Section do not apply during periods
of planned routine maintenance. Periods of planned routine maintenance of the
vapor loss control system, during which the vapor loss control system does not
meet the specifications of Paragraph E.1 or 2 of this Section, as applicable,
shall not exceed 240 hours per year.
F. No person shall place, store or hold in
any stationary tank, reservoir or other container of more than 40,000 gallons
(151,400 liters) nominal capacity any volatile organic compound having a true
vapor pressure of 11 psia or greater at storage conditions unless such tank,
reservoir or other container is a pressure tank capable of maintaining working
pressures sufficient at all times under normal operating conditions to prevent
vapor or gas loss to the atmosphere or is designed and equipped with a
submerged fill pipe and vapor loss control system in accordance with LAC
33:III.2103.E.
G. Exemptions. The
provisions of this Section (e.g., LAC 33:III.2103) do not apply to:
1. existing and new storage tanks, located in
any parish other than the parishes of Ascension, Calcasieu, East Baton Rouge,
Iberville, Livingston, Pointe Coupee, and West Baton Rouge, used for crude oil
or condensate and having a nominal storage capacity of less than 420,000
gallons (1,589,900 liters) unless such new tanks are subject to New Source
Performance Standards;
2. tanks
420,000 gallons (1,589,900 liters) or greater, located in any parish other than
the parishes of Ascension, Calcasieu, East Baton Rouge, Iberville, Livingston,
Pointe Coupee, and West Baton Rouge, used to store produced crude oil or
condensate prior to lease custody transfer unless such tanks are subject to New
Source Performance Standards;
3.
existing and new storage tanks in the parishes of Ascension, Calcasieu, East
Baton Rouge, Iberville, Livingston, Pointe Coupee, and West Baton Rouge that
are used for crude oil or condensate prior to lease custody transfer and that
have a nominal storage capacity of less than 420,000 gallons (1,589,900 liters)
unless such new tanks are subject to New Source Performance
Standards;
4. JP-4 fuels stored in
horizontal underground tanks;
5.
with regard to the requirements of Paragraph C.1 of this Section, any storage
tank that is used for less than two weeks in the calendar year, provided that
the tank is empty and liquid-free when not in use;
6. with regard to the submerged fill pipe
provisions of Subsection A of this Section, tanks, drums, or other containers
storing pyrophoric catalyst at the Vistalon Production Facility of ExxonMobil
Chemical Company's Baton Rouge Chemical Plant; and
7. with regard to the submerged fill pipe
provisions of Subsections A and B of this Section, tanks, drums, or other
containers used for the storage of corrosive materials, including but not
limited to spent sulfuric acid and hazardous waste, at the Baton Rouge facility
of Rhodia Inc.
H.
Compliance Tests
1. Floating Roofs. The seal
gap area shall be determined by measuring the length and width of the gaps
around the entire circumference of the seal. A 1/8 inch (0.32 cm) uniform
diameter probe shall be used for measuring gaps. Only gaps greater than or
equal to 1/8 inch (0.32 cm) shall be used in computing the gap area. The area
of the gaps shall be accumulated to determine compliance with LAC
33:III.2103.D.2.c and d. Compliance with the other provisions specified in LAC
33:III.2103.D.2.a and b and D.4 may be determined by visual
inspection.
2. Add-On Control
Devices. The following test methods shall be used, where appropriate to measure
control device compliance:
a. Test Methods
1-4 ( 40 CFR Part 60, Appendix A, as incorporated by reference at LAC
33:III.3003) for determining flow rates, as necessary;
b. Test Method 18 ( 40 CFR Part 60, Appendix
A, as incorporated by reference at LAC 33:III.3003) for measuring gaseous
organic compound emissions by gas chromatographic analysis;
c. Test Method 21 ( 40 CFR Part 60, Appendix
A, as incorporated by reference at LAC 33:III.3003) for determination of
volatile organic compound leaks;
d.
Test Method 25 ( 40 CFR Part 60, Appendix A, as incorporated by reference at
LAC 33:III.3003) for determining total gaseous nonmethane organic emissions as
carbon;
e. additional performance
test procedures, or equivalent test methods, approved by the administrative
authority*.
3. Vapor
Pressure. The maximum true vapor pressure is determined based upon the highest
expected calendar-month average of the storage temperature. The true vapor
pressure shall be determined from one of the following methods:
a. from available data on the Reid vapor
pressure;
b. by ASTM Test Methods
D323, D4953, or D5190 for the measurement of Reid vapor pressure, and adjusted
for actual storage temperature using the nomographs contained in API Bulletin
2517;
c. from standard reference
texts;
d. determined by ASTM Test
Method D2879 or D5191; or
e. by
another method approved by the administrative authority*.
I.
Monitoring/Recordkeeping/Reporting. The owner/ operator of any storage facility
shall maintain records to verify compliance with or exemption from LAC
33:III.2103. The records shall be maintained for at least two years and will
include, but not be limited to, the following:
1. the results of inspections required by LAC
33:III.2103.D.2.e and D.4 shall be recorded;
2. for vapor loss control systems (LAC
33:III.2103.E) the following information shall be recorded:
a. daily measurements of the exhaust gas
temperature immediately downstream of a direct-flame incinerator;
b. daily measurements of the inlet and outlet
gas temperature of a chiller, or catalytic incinerator;
c. results of monitoring outlet VOC
concentration of carbon adsorption bed to detect breakthrough;
3. the date and reason for any
maintenance and repair of the applicable control devices and the estimated
quantity and duration of volatile organic compound emissions during such
activities;
4. the results of any
testing conducted in accordance with the provisions specified in LAC
33:III.2103.H;
5. records of the
type(s) of VOC stored and the average monthly true vapor pressure of the stored
liquid for any storage vessel with an external floating roof that is exempt
from the requirements for a secondary seal and is used to store VOCs with a
true vapor pressure greater than 1.0 psia; and
6. records of the type(s) of VOC stored and
the length of time stored for any storage tank exempted under Paragraph G.5 of
this Section;
7. records of planned
routine maintenance performed on the vapor loss control system, including the
duration of each time the vapor loss control system does not meet the
specifications of Paragraph E.1 or 2 of this Section, as applicable, due to the
planned routine maintenance. Such records shall include the information
specified as follows:
a. the first time of day
and date the requirements of Subsection E of this Section were not met, at the
beginning of the planned routine maintenance; and
b. the first time of day and date the
requirements of Subsection E of this Section were met, at the conclusion of the
planned routine maintenance.
J. The facility shall provide notice of any
use of a storage tank exempted under Paragraph G.5 of this Section. The notice
shall be provided to the Office of Environmental Compliance in the manner
identified in LAC 33:I.3923.A in advance, if possible, but no later than 24
hours after the tank starts filling.
AUTHORITY NOTE:
Promulgated in accordance with
R.S.
30:2054.
