Indiana Administrative Code
Title 326 - AIR POLLUTION CONTROL DIVISION
Article 8 - VOLATILE ORGANIC COMPOUND RULES
Rule 4 - Petroleum Sources
Section 4-3 - Petroleum liquid storage facilities
Universal Citation: 326 IN Admin Code 4-3
Current through March 20, 2024
Authority: IC 13-1-1-4; IC 13-7-7
Affected: IC 13-1-1-1; IC 13-7-1-1; IC 13-7-7-5
Sec. 3.
(a) This section will apply to all petroleum liquid storage vessels with capacities greater than one hundred fifty thousand (150,000) liters (thirty-nine thousand (39,000) gallons) containing volatile organic compounds whose true vapor pressure is greater than 10.5 kPa (1.52 psi).
(b) External Fixed Roof Tanks.
(1) No owner or operator of an affected fixed
roof tanks shall permit the use of such facility unless:
(A) The facility has been retrofitted with an
internal floating roof equipped with a closure seal, or seals, to close the
space between the roof edge and tank wall unless the source has been
retrofitted with equally effective alternative control which has been
approved.
(B) The facility is
maintained such that there are no visible holes, tears, or other openings in
the seal or any seal fabric or materials.
(C) All openings, except stub drains, are
equipped with covers, lids, or seals such that:
(i) the cover, lid, or seal is in the closed
position at all times except when in actual use;
(ii) automatic bleeder vents are closed at
all times except when the roof is floated off or landed on the roof leg
supports;
(iii) rim vents, if
provided, are set to open when the roof is being floated off the roof leg
supports or at the manufacturer's recommended setting.
(c) External Floating Roof Tanks.
(1) This subsection applies to
applicable open top tanks with a cover consisting of a double deck or pontoon
single deck which rests upon and is supported by the petroleum liquid being
contained and is equipped with a closure seal or seals to close the space
between the roof edge and tank wall.
This subsection does not apply to vessels which:
(A) are used to store a crude oil with a pour
point of 50° F. or higher as determined by the ASTM Standard D97-66
(reapproved 1978) "Pour Point of Petroleum Oils" ASTM Part 15, 1981 ASTM, 1916
Race Street, Philadelphia, PA 19103 Library of Congress Cat. Card
#40-10712;
(B) have capacities less
than one million six hundred thousand (1,600,000) liters (four hundred twenty
thousand (420,000) gal) and are used to store produced crude oil and condensate
prior to lease custody transfer. "Condensate" means hydrocarbon liquid
separated from natural gas which condenses due to changes in the temperature
and/or pressure and remains liquid at standard conditions. "Lease custody
transfer" means the transfer of produced crude oil and/or condensate, after
processing and/or treating in the producing operations, from storage tanks or
automatic transfer facilities to pipelines or any other forms of
transportation;
(C) contain a
petroleum liquid with a true vapor pressure less than 27.6 kPa (4.0 psi); and
(i) are of welded construction; and
(ii) presently possess a metallic-type shoe
seal, a liquid-mounted foam seal, a liquid-mounted liquid filled-type seal, or
other closure device of demonstrated equivalence approved by the commissioner;
or
(D) are of welded
construction, equipped with a metallic-type shoe primary seal and has a
secondary seal from the top of the shoe seal to the tank wall (shoe-mounted
secondary seal).
(2) No
owner of a facility subject to this subsection shall store a petroleum liquid
in that facility unless:
(A) The facility has
been fitted with:
(i) a continuous secondary
seal extending from the floating roof to the tank wall (rim-mounted secondary
seal); or
(ii) a closure or other
device approved by the commissioner which is equally effective.
(B) All seal closure devices meet
the following requirements:
(i) there are no
visible holes, tears, or other openings in the seal(s) or seal
fabric;
(ii) the seal(s) are intact
and uniformly in place around the circumference of the floating roof between
the floating roof and the tank wall.
(iii) for vapor mounted primary seals, the
accumulated gap area around the circumference of the secondary seal where a gap
exceeding one-eighth (1/8) inch exists between the secondary seal and the tank
wall shall not exceed 1.0 square inch per foot of tank diameter. There shall be
no gaps exceeding one-half (½) inch between the secondary seal and the
tank wall of welded tanks and no gaps exceeding one (1) inch between the
secondary seal and the tank wall of riveted tanks.
(C) All openings in the external floating
roof, except for automatic bleeder vents, rim space vents, and leg sleeves,
are:
(i) equipped with covers, seals, or lids
in the closed position except when the openings are in actual use;
and
(ii) equipped with projections
into the tank which remain below the liquid surface at all times.
(D) automatic bleeder vents are
closed at all times except when the roof is floated off or landed on the roof
leg supports;
(E) rim vents are set
to open when the roof is being floated off the leg supports or at the
manufacturer's recommended setting; and
(F) emergency roof drains are provided with
slotted membrane fabric covers or equivalent covers which cover at least ninety
percent (90%) of the area of the opening.
(d) Record Keeping and Reporting. Owners or operators of petroleum liquid storage vessels shall maintain records of the types of volatile petroleum liquid stored, the maximum true vapor pressure of the liquid as stored, and the results of the inspections performed on the storage vessels. Such records shall be maintained for a period of two (2) years and shall be made available to the commissioner upon written request.
Disclaimer: These regulations may not be the most recent version. Indiana may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
