Document ID: EPA-R01-OAR-2015-0546-0003
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2015-11-03T05:00Z

OTC Model Rule for xxxx(Large Above Ground VOC Storage Tanks) 

This model rule was developed by the Ozone Transport Commission (OTC) as
part of a regional effort to attain and maintain the National Ambient
Air Quality Eight-Hour Ozone Standard (NAAQS).

Notes:

1.  States opting to promulgate rules based on this model rule must
comply with State specific administrative requirements and procedures.

2.  Underlined text (additions) and strikeouts (deletions) are changes
made to the original OTC model rule dated March 6, 2001.

3.  “XXXX” is a placeholder for Section numbers and title numbers.

4.  The term (OTC State) or (OTC State Agency) is a placeholder for
individual State names. 

5.  BOLD text are references to agencies outside the OTC states, section
titles, and for special points of interest.  

6. To allow facilities to apply for facility-specific alternative VOC
control plans, states may adopt provisions similar to those at N.J.A.C.
7:27-16.17, Facility-Specific VOC Control Requirements, which can allow
alternative compliance requirements based on case-by-case determinations
of technical infeasibility or unreasonable costs of provisions in this
model rule.  N.J.A.C. 7:27-16.17(j) includes approval criteria for such
plans. Also, these plans require a certified application, public comment
and SIP revision.  A Microsoft Word copy of N.J.A.C. 7:27-16.17 can be
found at   HYPERLINK "http://www.state.nj.us/dep/aqm/Sub16.doc" 
http://www.state.nj.us/dep/aqm/Sub16.doc  , pages 113 though 121.

Name of rule here: Large Above Ground VOC Storage Tanks (Version for
States Without External Floating roof tanks)

Table of Contents here:

1.1
Definitions……………………………………………………
………………………………………..1  TC \l1 "7:27-16.1
Definitions 

1.2	Stationary storage
tanks…………………………………………………………
…………………7

APPENDIX  ,XXXX
INSPECTIONS……………………………………………………
…………………..26

1.1	Definitions  TC \l1 "7:27-16.1	Definitions 

	

	“Aboveground storage tank” or “AST” means any storage tank that
is not an underground storage tank.

	

“AP-42” means the January 1995, 5th edition of the manual entitled
“Compilation of Air Pollutant Emission Factors,” which is published
by the EPA, including supplements A through G and any subsequent
revisions, as supplemented or amended and incorporated herein by
reference.  The manual may be obtained from the National Technical
Information Service (NTIS), 5285 Port Royal Road, Springfield, Virginia,
22161, (703) 487-4650; or from the Superintendent of Documents,
Government Printing Office, Washington, D.C., 20402, (202) 783-3228.  In
addition, the manual can be accessed electronically through the EPA
Technology Transfer Network CHIEF site at   HYPERLINK
"http://www.epa.gov/ttn/chief/ap42/index.html" 
http://www.epa.gov/ttn/chief/ap42/index.html .

	"Applicable VOC" means any VOC which has a vapor pressure or sum of
partial pressures of organic substances of 0.02 pounds per square inch
(1.0 millimeters of mercury) absolute or greater at standard conditions.

“Authorized inspector” means a person authorized by the tank owner
or operator to conduct floating roof inspections.  This person may be an
employee of the tank owner or operator or a contractor.

	            

“Capacity” means the volume of liquid that is capable of being
stored in a vessel, determined by multiplying the vessel's internal
cross-sectional area by the internal height of the shell.

	

“Clean produced water” means water containing less than 35
milligrams of VOC per liter, as determined by the Diesel Range Organics
option under EPA SW-846 Method 8015B or NJDEP Method OQA-QAM-025,
Revision 6, and/or, if necessary, EPA SW-846 Test Method 8260, as
supplemented or amended, and incorporated herein by reference.
Hydrocarbons heavier than C14, as determined by Test Method ASTM E
260-85, as supplemented or amended and incorporated herein by reference,
may be excluded from the total concentration.  This term will be used
within the context of tank degassing and cleaning operations.   EPA
SW-846 Method 8015B and EPA SW-846 Test Method 8260 are available from
the National Technical Information Service, U.S. Department of Commerce,
5285 Port Royal Road, Springfield, Virginia 22161; phone number
1-800-553-6847.  NJDEP Method OQA-QAM-025 Reference 6 is available on
the Department’s website at   HYPERLINK
"http://www.nj.gov/dep/oqa/bboard.html"  www.nj.gov/dep/oqa/bboard.html
.  Test Method ASTM E 260-85 is available from the American Society for
Testing and Materials (ASTM), 100 Barr Harbor Drive, Post Office Box
C700, West Conshohocken, PA 19428-2959 or from its website at  
HYPERLINK "http://www.astm.org"  www.astm.org .

“Crude oil” means petroleum extracted from the earth and that has
not been processed in a refining operation.

“Deck fitting” means a functional or operational device on a tank
floating roof that substantially closes or seals a penetration in the
deck of the floating roof including, but not limited to, any access
hatch, fixed roof support column and well, gauge float, gauge hatch,
sample port, guidepole, ladder and well, rim vent, roof drain, roof leg,
and vacuum breaker, and excluding the rim seal system.

“Degassing” means the process of removing organic vapors from a
storage tank in preparation for human entry.

	“Domed roof” means a self-supporting fixed roof attached to the top
of an external floating roof tank to reduce evaporative losses.

	"External floating roof" means a movable roof in an otherwise open top
storage vessel consisting of a floating deck resting on the surface of
the liquid contents, a continuous seal supported against the inner
surface of the tank shell, and an envelope closing the gap between the
floating deck and the seal, the entire deck and rim seal system free to
rise and fall with the surface of the liquid during filling and emptying
of the storage vessel.

"Floating roof" means an external or internal roof resting on the
surface of the liquid contents in a storage vessel, and equipped with a
mechanism providing one or more tight seals in the space between the
floating roof rim and the vessel shell throughout the entire vertical
travel distance of the roof, or any other floating type mechanism
approved by the Department for the purpose of preventing air
contaminants from being discharged into the outdoor atmosphere.

	

	"Federally enforceable" means all limitations and conditions on
operation, production, or emissions that can be enforced by EPA.  The
foregoing limitations and conditions that can be enforced by EPA
include, but are not limited to, those established in:

	1.	Any standards of performance for new stationary sources (NSPS)
promulgated at 40 CFR 60;

	2.	Any national emission standard for hazardous air pollutants (NESHAP)
promulgated at 40 CFR 61 or 40 CFR 63;

	3.	Any provision of an applicable SIP;

	4.	Any permit issued pursuant to requirements established at 40 CFR 51,
Subpart I; 40 CFR 52.21; 40 CFR 70; or 40 CFR 71; or

	5.	Any permit or order issued pursuant to the State Air Pollution
Control Act, Statute Citation, or this chapter.

	

“Fixed roof tank” means a tank with a roof that is permanently
affixed to the shell of the tank.

	"Gasoline" means any petroleum distillate or petroleum
distillate/oxygenated blend having a Reid vapor pressure of four pounds
per square inch (207 millimeters of mercury) absolute or greater, and
commonly or commercially known or sold as gasoline.

	

“Gauge float” means a device to indicate the level of the liquid
within a tank.  The float rests on the liquid surface inside a gauge
well in the tank.

	“Gauge hatch/sample well” means a well that consists of a pipe
sleeve equipped with a self-closing gasketed cover (to reduce
evaporative losses) and allows hand-gauging or sampling of the stored
liquid.  The gauge hatch/sample well is usually located beneath the
gauger’s platform, which is mounted on top of the tank shell.  A cord
may be attached to the self-closing gasketed cover so that the cover can
be opened from the platform.

“Guidepole” means an anti-rotation device that is fixed to the top
and bottom of a tank, passing through a well in a floating roof.  A
guidepole may be solid or be equipped with slots or holes for gauging
purposes provided the guidepole is equipped with an appropriate sealing
device that prevents openings that expose the stored liquid to the
atmosphere.

	

	

	“Hot work” means riveting, welding, flame cutting or other fire or
spark-producing operation.

	

“In-service roof landing” means a roof landing in which the tank is
not taken out of service.

“Internal floating roof” means floating roof located inside a vessel
with a fixed roof.

“Ladder and well” means a ladder that passes through a well, and is
used to access the top of the internal floating roof.

	"Leak" means a gaseous leak or a liquid leak of applicable VOC.

	“Leak-free” means a condition that exists when the reading on a
portable hydrocarbon analyzer is less than 500 ppm, expressed as
methane, above background, measured using EPA Method 21, as identified
in 40 CFR Part 60, Appendix A, Determination of Volatile Organic
Compounds Leaks, incorporated herein by reference.

	“Liquid mounted primary seal” means a primary seal that is mounted
in full contact with the liquid in the annular space between the tank
shell and the floating roof.

“Maximum operating level” means the highest achievable level of
fluid within a tank, as determined by the structural design of the tank.
 In the absence of tank specific design information, the maximum
operating level is equal to tank capacity.

“Mechanical shoe seal” means a metallic sheet (the shoe) that is
held vertically against the vertical tank wall.  The shoe is connected
by braces to the floating roof and is held tightly against the wall by
springs or weighted levers.  A flexible coated fabric (envelope) is
suspended from the shoe seal to the floating roof to form a vapor
barrier over the annular space between the roof and the primary seal.

	“Oily wastewater” means wastewater generated during the refinery
process and which contains oil, emulsified oil, or other hydrocarbons. 
Oily wastewater originates from a variety of refinery processes
including cooling water, condensed stripping steam, tank draw-off, and
contact process water.

	"Operating permit" means the permit described in Title V of the Federal
Clean air Act, 42 U.S.C. §§7661 et seq., and in xxxxxx.  This term
shall include a general operating permit which is applicable facility
wide, but does not include a general operating permit which applies only
to a part of a facility.  Where a general operating permit applies only
to a part of a facility, the general operating permit shall be
incorporated into the operating permit.  This term also includes an
operating permit issued for a temporary facility; for a facility subject
to a MACT or GACT standard pursuant to xxxxxx; or for a component of a
facility pursuant to xxxxx.

“Organic liquid” means any liquid that contains volatile organic
compounds (VOCs) including, but not limited to, crude oils and petroleum
distillates.

	

	“Out-of-service” means any container, pipe, or equipment from which
all liquid and sludge has been removed, all connecting lines and piping
have been disconnected and blanked off, all valves (except for
ventilation valves) have been closed and locked, and on which
conspicuous signs have been posted that state that it is out of service
and note the date of removal from service.

	"Petroleum distillate" means any mixture of VOC produced by condensing
vapors of petroleum during distillation, including, but not limited to,
naphthas, aviation gasoline, motor gasoline, kerosene, diesel oil,
domestic fuel oil, and petroleum solvents.

“Pole float” means a float located inside a guidepole that floats on
the surface of the stored liquid.  The rim of the float has a wiper or
seal that extends to the inner surface of the pole.

“Pole sleeve” means a device that extends from either the cover or
the rim of an opening in a floating roof deck to the outer surface of a
pole that passes through the opening.

“Pole wiper” means a seal that extends from either the cover or the
rim of an opening in a floating roof deck to the outer surface of a pole
that passes through the opening.

“Pressure vessel” means a tank, reservoir, or container that is
capable of maintaining working pressures sufficient to prevent organic
liquid loss or VOC loss to the atmosphere at all times.

	“Primary seal” means a seal mounted below a secondary seal of a rim
seal system that consists of two seals.  A primary seal, which is in
contact with the floating roof tank shell, can be either mechanical
shoe, resilient filled, or wiper type.

	“Psia” means pounds per square inch absolute.

	"Receiving vessel" means any vessel into which an applicable VOC is
introduced including, but not limited to, storage tanks, delivery
vessels, and manufacturing process vessels.

	"Reid vapor pressure" or "RVP" means the absolute vapor pressure of a
petroleum product in pounds per square inch (or kilopascals) at 100
degrees Fahrenheit (oF) (37.8 degrees Celsius (oC)) as measured by
“Method 3- Evacuated Chamber Method” promulgated at 40 CFR 80,
Appendix E; or any other equivalent test method approved in advance in
writing by the Department and the EPA.

“Resilient filled primary seal” means an envelope filled with
resilient foam (non-metallic polyurethane) mounted at the rim of the
floating roof that makes contact with the shell.  A resilient filled
nonmetallic primary seal can be liquid-mounted or vapor-mounted.

“Resilient-toroid-type” seal means a core of open-cell foam
encapsulated in a coated fabric that is attached to a mounting on the
deck perimeter, and is continuous around the floating roof
circumference.

“Rim mounted secondary seal” means a secondary seal mounted on the
rim of the floating roof of a storage tank.  Rim mounted secondary seals
are effective at reducing losses from the primary seal fabric.

“Rim seal system” means a closure device between the shell of the
storage tank and the floating roof edge.  A rim seal system may consist
of two seals, one above the other.  The lower seal is referred to as the
primary seal and the upper seal is referred to as the secondary seal.

“Rim vent” means a vent used on tanks equipped with a seal design,
such as a mechanical shoe seal, that creates a vapor pocket in the seal
and rim area.  The vent is used to release excess pressure or vacuum
that is present in the vapor space bounded by the primary-seal shoe, the
floating roof rim, the primary seal fabric, and the liquid level.  A rim
vent usually consists of a weighted pallet that rests on a gasketed
cover.

“Roof drain” means a drain that permits the removal of rainwater
from the surface of external floating roofs.  A roof drain may be a
closed drainage system that carries rainwater from the surface of the
floating roof to the outside of the tank, or an open drainage system
consisting of an open pipe that extends a short distance below the
bottom of the deck allowing rainwater to drain from the surface of the
floating roof into the organic liquid contents of the tank.

“Roof landing” means an event where the liquid level in a floating
roof tank is lowered to the point where the floating roof is resting on
its legs or is supported from above by cables or hangers, and is no
longer floating on the surface of the stored liquid.

“Roof leg” means an adjustable or fixed leg that is attached to the
floating roof deck to support or hold the floating roof deck at a
predetermined distance off the tank bottom to prevent damage to the
fittings located underneath the deck and to allow for tank cleaning or
repair.  For adjustable legs, the load-carrying element passes through a
well or sleeve in the deck.

“Roof opening” means any opening through a floating roof of a
storage tank for any deck fitting.

	“Secondary seal” means a seal mounted above the primary seal of a
rim seal system that consists of two seals.  Secondary seals can be shoe
mounted or rim-mounted.

	

	“Shoe mounted secondary seal” means a secondary seal mounted on the
primary mechanical shoe. Shoe mounted secondary seals are effective at
reducing vapor losses from the gaps between the shoe and the tank shell.

“Slop Oil” means the floating oil and solids that accumulate on the
surface of an oil-water separator.

	"Standard conditions" means 70 degrees Fahrenheit (oF) (21.1 degrees
Celsius (oC)) and one atmosphere pressure (14.7 pounds per square inch
absolute or 760.0 millimeters of mercury).

	

	"Storage tank" means any tank, reservoir, or vessel which is a
container for liquids or gases, wherein:

	1.	No manufacturing process, or part thereof, other than filling or
emptying takes place; and

	2.	The only treatment carried out is that necessary to prevent change
from occurring in the physical condition or chemical properties of the
liquids or gases deposited into the container.  Such treatment may
include recirculating, agitating, maintaining the temperature of the
stored liquids or gases, or replacing air in the vapor space above the
stored liquids or gases with an inert gas in order to inhibit the
occurrence of chemical reaction.

	"Submerged fill pipe" means a fill pipe whose point of discharge into
the receiving vessel is entirely submerged when the liquid level is no
more than 6 inches (15.2 centimeters) above the vessel bottom or, in the
case of a top or side-entering fill pipe, when the liquid level is no
more than three times the inside radius of the fill pipe plus 5 inches
(12.7 centimeters), but no more than 42 inches (106.7 centimeters),
above the vessel bottom.

	"Tank" means any container whose walls are constructed of material
which is rigid and self-supporting.

	"Thermal oxidizer" means a type of control apparatus which reduces the
emission of air contaminants by subjecting the gases being emitted to
elevated temperatures which cause the air contaminant molecules to
decompose within an enclosed space.  For the purposes of this
subchapter, this term includes catalytic and non-catalytic thermal
oxidizers.

	“True vapor pressure” or “TVP” means the equilibrium partial
vapor pressure exerted by an organic liquid at actual storage
temperature.

	

“Vacuum breaker” means a device used to equalize the pressure of the
vapor space across the floating roof deck as the deck is either being
landed on or floated off its legs.  

	

	"Vapor control system" means a system for preventing the emission of
organic vapors into the outdoor atmosphere.

	"Vapor-mounted primary seal" means a rim seal which is mounted so that
underneath the seal there is an annular vapor space which is bounded by
the bottom of the seal, the vessel wall, the liquid surface, and the
floating roof.

	"Vapor pressure" means the pressure of the vapor phase of a substance,
or the sum of the partial pressures of the vapor phases of individual
substances in a mixture of substances, when in equilibrium with the
non-vapor phase of the substance or substances.

	“Visible gap” means a gap of a deck fitting or roof opening of more
than 1/8 inch (0.32 centimeters) between any gasket or seal and the
opening that it is intended to seal.

"Volatile organic compound" or "VOC" means a volatile organic compound
as that term is defined by the EPA at 40 CFR 51.100(s), as supplemented
or amended, which is incorporated by reference herein.

	“Wiper primary seal” means a continuous annular blade of flexible
material (for example, rubber, urethane, or foam filled) fastened to a
mounting bracket on the deck perimeter that spans the annular rim space
and contacts the tank shell.  A wiper seal system may consist of a
single primary seal, or dual (multiple) seals where one seal is mounted
above the other.

1.2	Stationary storage tanks  TC \l1 "7:27-16.2	Storage of volatile
organic compounds 

(a)	 The provisions of this section shall apply to any above ground
stationary storage tank that stores only VOC, or that stores VOC and
non-VOC, except as set forth in (e) and (f) below.

(b)	No person shall cause, suffer, allow, or permit the following:

1.	The storage of any applicable VOC in any stationary storage tank that
has a maximum capacity of 2,000 gallons (7,570 liters) or greater and is
exposed to the rays of the sun unless:

i.	The external surfaces of the tank are either mill-finish aluminum or
are painted and maintained white upon the next painting of the tank, or
upon being returned to service after being out of service for the first
time after the operative date of this rule, whichever is sooner, and no
less than 10 years after the operative date of the rule, except that
this provision shall not apply to words and logograms applied to the
external surface of the storage tank for purposes of identification
provided such symbols do not cover more than 20 percent of the external
surface area of the tank's sides and top or more than 200 square feet
(18.6 square meters), whichever is less ; or

ii. 	An equivalent method of emission control approved by the Department
is used; and

2.	The storage of any VOC with a vapor pressure of 0.75 psia or greater
at standard conditions in any stationary storage tank having a maximum
capacity of 40,000 gallons (151,418 liters) or greater unless, in
addition to meeting the requirement in (b)1 above, such stationary
storage tank is equipped with a floating roof or other control apparatus
approved by the Department as being equally or more effective in
preventing the emission of a VOC into the outdoor atmosphere.

.

(c)	No person shall cause, suffer, allow, or permit the storage of any
VOC having a vapor pressure of greater than 13.0 pounds per square inch
absolute (672 millimeters of mercury) at the actual temperature existing
at or near the liquid surface in any stationary storage tank having a
maximum capacity of 1,000 gallons (3,785 liters) or greater unless such
tank is equipped with a vapor control system to reduce the rate of VOC
emissions to the outdoor atmosphere by at least 90 percent by weight of
the uncontrolled VOC emissions from the tank.

(d)	No person shall cause, suffer, allow, or permit the storage of any
VOC in any stationary storage tank subject to the provisions of either
(b)2 above or (c) above and equipped with gauging and/or sampling
systems that penetrate the tank shell unless such systems are
vapor-tight.

(e)	The provisions of (b) and (c) above shall not apply to a stationary
storage tank that is not in Range III and is located underground at a
depth of no less than eight inches (20.3 centimeters) below the surface
measured to the highest point of the tank shell, or installed in other
manner approved by the Department as being equally or more effective in
preventing the emission of any VOC into the outdoor atmosphere.

The following exemptions apply:

1.	The provisions of (b) above shall not apply to a stationary storage
tank, if the tank is:

	 

i.	Maintained under a controlled elevated temperature; or

ii.	Equipped with a vapor control system reducing by at least 98 percent
the weight of VOC emissions to the outdoor atmosphere; or

iii	A pressurized storage tank designed to operate in excess of 15
pounds per square inch gauge (psig) without any emissions to the
atmosphere except under emergency conditions.

2.	Any of the following tanks shall be exempt from (q) below:

i.	Any fixed roof storage tank having a capacity of less than 40,000
gallons;

ii.	Any fixed roof storage tank less than 125,000 gallons whose contents
has a vapor pressure of less than or equal to 2 psia at standard
conditions; and

iii.	Any storage tank not in Range III equipped with a floating roof.

3.	Any external floating roof tank in Range III that was in existence on
(the day before the operative date of these amendments), and that is not
degassed and emptied within 120 days after (the operative date of these
amendments) shall be temporarily exempt from complying with (l)1i below
if the operator has demonstrated to the Department that in order to
properly bolt the covers for access hatches and gauge float wells, a
flange or other comparable device must be welded to the fitting or other
hot- work must be performed.  The operator shall use equivalent means,
such as clamping, to secure the covers during the interim period.  
However, the owner or operator must comply with (l)1i below the first
time the tank is degassed and emptied after 120 days after (the
operative date of these amendments).

(Reserved)

5.	Any floating-roof tank shall not be required to meet the gap seal
requirements at (l)3i through x below while the roof is resting on its
legs during the processes of draining, degassing or refilling the tank.

6.	Any floating roof tank subject to a Federally enforceable condition
limiting its annual in-service roof landing VOC emissions to less than
five tons as calculated by AP-42, Chapter 7, may be exempt from (p)
below, at the owner or operator’s discretion, provided that the owner
or operator shall maintain the records of these calculations pursuant to
(s) below and the tank’s Operating Permit or Preconstruction Permit,
as applicable. 

7. 	Any floating roof tank subject to a Federally enforceable condition
in its Operating Permit or Preconstruction Permit, as applicable,
limiting the vapor pressure of its contents to less than 1.5 psia at
standard conditions, shall be exempt from (p) below only if the tank’s
records, maintained pursuant to (s)1 below, show that the vapor pressure
of the tank’s contents is less than 1.5 psia under standard
conditions.

.

	9.	Any tank at (b) above is exempt from the vapor-tight condition at
(d) above when gauging or sampling is taking place.  In addition, a
floating roof tank, is exempt from the vapor-tight condition at (d)
above when the condition at (o)1 below is met during refilling.

(g)	(Reserved)

 and secondary rim seal system or equipment approved by the Department
as being equally or more effective in preventing the emission of any VOC
into the outdoor atmosphere.  For the secondary seal, the gap area of
gaps exceeding one-eighth inch (0.32 centimeters) in width between the
seal and the tank wall shall not exceed 1.0 square inch per foot (6.5
square centimeters per 0.3 meters) of tank diameter.  Any secondary seal
shall be intact, with no visible holes, tears or other openings. The
requirements of this subsection shall remain in effect for any such tank
until the rim seal system requirements at (l)3 below become effective
for that tank.

(i)	(Reserved)

(j)	Any delivery vessel that contains any applicable VOC and is located
at a facility and is vented to the atmosphere for more than 30
consecutive days shall be considered a stationary storage tank for the
purposes of this section.

(k)	(Reserved)

(l)	No person shall cause, suffer, allow, or permit the storage of any
VOC in any stationary storage tank unless the provisions of this
subsection are met.  

All floating roof tanks in Range III shall be equipped with internal
floating roofs or shall be equipped with an external floating roof and a
domed roof.

2.	The owner or operator of a floating roof tank in Range III shall,
prior to the date the tank is refilled after being degassed the first
time after (the operative date of these amendments), but no later than
ten years after the operative date of these amendments: 

i.	Equip each access hatch with a cover that is gasketed and bolted or
locked in place. Equip each gauge float well with a cover that is either
gasketed and weighted or gasketed and bolted. The cover shall be closed
at all times, with no visible gaps, except when the hatch or well must
be opened for access;

ii.	Equip each gauge hatch/sample well with a cover that is gasketed or
a slit-fabric seal or similar device that covers at least 90% of the
opening.  If equipped with a cover, the cover shall be closed at all
times, with no visible gaps, except when the hatch or well must be
opened for access;

iii.	Gasket, cap, or cover each adjustable roof leg with a VOC
impervious sock at all times when the roof is floating or, in lieu of
gasketing, capping, or covering each roof leg, the owner or operator may
suspend the floating roof from the fixed or domed roof using cables and
eliminate the roof leg penetrations in the floating roof;

iv.	Gasket each rim vent.  Rim vents shall be closed at all times, with
no visible gaps, when the roof is floating; and shall be set to open
only when the roof is being floated off the roof leg supports or when
the pressure beneath the rim seal exceeds the manufacturer's recommended
setting;

v.	Gasket each vacuum breaker.  Vacuum breakers shall be closed at all
times, with no visible gaps, when the roof is floating; and shall be set
to open only when the roof is being floated off or is being landed on
the roof leg supports;

vi.	Equip each open floating roof drain with a slotted membrane fabric
cover or other device with an equivalent control efficiency that covers
at least 90 percent of the area of the opening.  The fabric cover shall
be impermeable if the liquid is drained into the contents of the tank;

vii.	Equip each unslotted guidepole well with a gasketed sliding cover
and a flexible fabric sleeve or pole wiper;

viii.	Equip each unslotted guidepole with a gasketed cover at the top of
the pole. The cover shall be closed at all times, with no visible gaps,
except when gauging or sampling;

;;

x.	Equip each slotted guidepole having a pole float with a pole float
wiper or seal. The wiper or seal of the pole float shall be at or above
the height of the pole wiper. Maintain the pole float in a condition
such that it floats within the guidepole at all times except when it
must be removed for sampling or when the tank is empty;

xi.	For each slotted guidepole well having a pole sleeve, the pole
sleeve shall extend into the stored liquid;

xii.	(Reserved)

xiii.	Except for vacuum breakers and rim vents, ensure that each opening
in the external floating roof shall provide a projection below the
liquid surface; and

xiv.	Except for vacuum breakers, rim vents, roof drains, and leg
sleeves, equip all other openings in the roof with a gasketed cover or
seal that is closed at all times, with no visible gaps, except when the
cover or seal must be opened for access. 

3.	In lieu of complying with the requirement of no visible gap at (l)1i,
ii, iv, v, viii, xi and xiv above, the owner or operator of a floating
roof tank in Range III may, prior to the date the tank is refilled after
being degassed the first time after (the operative date of these
amendments), but no later than ten years after the operative date of
these amendments, maintain all roof openings in a leak-free condition at
all times except during preventive maintenance, repair, or inspection
periods specified at (r) below. 

4.	The owner or operator of a floating roof tank in Range III shall
equip the tank with a rim seal system meeting the following requirements
prior to the initial fill if the tank was constructed on or after (the
operative date of these amendments), or prior to the date the tank is
refilled after being degassed for the first time after (the operative
date of these amendments), but no later than May 1 of the year 10 years
after the operative date of these amendments if the tank was in
existence on (the day before the operative date of these amendments): 

i.	The rim seal system shall consist of one of the following 

(1)	A liquid-mounted primary seal meeting the requirements for primary
seals at (l)3iii, vii,  and x below and having no tears or openings, or 

(2) 	A mechanical shoe primary seal and a secondary seal meeting the
requirements at (l)3 ii through x below, or:

(3) 	A vapor-mounted wiper primary seal and a secondary seal meeting the
requirements at (l)3 ii through x below may only be used if a tank has a
shell with riveted or lap-welded horizontal seams;

ii.	If present, the secondary seal shall be rim mounted and shall not be
attached to the primary seal;

iii.	Gaps between the tank shell and the primary seal shall not exceed
1.3 centimeters (1/2 inch) for a cumulative length of 30 percent of the
circumference of the tank, and 0.32 centimeters (1/8 inch) for 60
percent of the circumference of the tank.  No gap between the tank shell
and the primary seal shall exceed 3.8 centimeters (1-1/2 inches).  No
continuous gap between the tank shell and the primary seal greater than
0.32 centimeters (1/8 inch) shall exceed 10 percent of the circumference
of the tank;

iv.	If a secondary seal is present, gaps between the tank shell and the
secondary seal shall not exceed 0.32 centimeters (1/8 inch) for a
cumulative length of 95 percent of the circumference of the tank.  No
gap between the tank shell and the secondary seal shall exceed 1.3
centimeters (1/2 inch);

v.	Mechanical shoe primary seals shall be installed so that one end of
the shoe extends into the stored organic liquid a minimum of 10
centimeters (4 inches) and the other end extends a minimum vertical
distance of 15 centimeters (6 inches) above the stored organic liquid
surface;

vi.	The geometry of the shoe shall be such that the maximum gap between
the shoe and the tank shell is no greater than doubled the gap allowed
by the seal gap criteria specified in (l)3iii above for a length of at
least 10 centimeters (4 inches) in the vertical plane above the liquid
surface;

vii.	The primary seal envelope shall be made available for unobstructed
inspection by the Department, upon request, along its circumference.  In
the case of riveted tanks with resilient filled primary seals, at least
eight such locations shall be made available; for all other types of
seals, at least four such locations shall be made available.  If the
Department deems it necessary, further unobstructed inspection of the
primary seal may be required to determine the seal's condition along its
entire circumference;

viii.	If a secondary seal is present, it shall be installed in a way
that permits probes up to 3.8 centimeters (1-1/2 inches) in width to be
inserted to measure gaps in the primary seal;

ix.	If a secondary seal is present, there shall be no holes, tears or
openings in the secondary seal or in the primary seal envelope
surrounding the annular vapor space enclosed by the roof edge, seal
fabric, and secondary seal; and

x.	Except during preventive maintenance, repair, or inspection periods
specified at (r) below that do not exceed 72 hours, both the primary
seal and the secondary seal shall cover the annular space between the
floating roof and the wall of the storage tank in a continuous fashion,
as required at (l)3iii and iv above.

.	

5.	The owner or operator of a domed external floating roof tank in Range
III shall, prior to the date the tank is refilled after being degassed
the first time after (the operative date of these amendments), but no
later than ten years after the operative date of these amendments ensure
that the concentration of organic vapor in the vapor space above the
domed external floating roof does not exceed 30 percent of its lower
explosive limit.

6.	(Reserved)

7.	On or before the date an internal floating roof tank in Range III is
refilled after being degassed for the first time after (the operative
date of these amendments), but no later than ten years after the
operative date of these amendments, if the tank was in existence on (the
day before the operative date of these amendments), or on initial fill
if the tank is constructed on or after (the operative date of these
amendments) the owner or operator of the tank shall:

i.	Equip each fixed roof support column and well with a sliding cover
that is gasketed or with flexible fabric sleeves; 

ii.	Equip each ladder well with a gasketed sliding cover.  The cover
shall be closed at all times, except when the well must be opened for
access;

	iii.	For an internal floating roof installed prior to July 23, 1984,
ensure that the concentration of organic vapor in the vapor space above
the internal floating roof shall not exceed 50 percent of its lower
explosive limit; and

iv.	For an internal floating roof installed after July 23, 1984, ensure
that the concentration of organic vapor in the vapor space above the
internal floating roof shall not exceed 30 percent of its lower
explosive limit.

	8.	By (ten years after the operative date of these amendments) if a
Range III fixed-roof tank without an internal floating roof was in
existence on (the day before the operative date of these amendments), or
by the initial fill if a tank is constructed on or after (the operative
date of these amendments), and if the fixed roof tank has a capacity of
40,000 gallons or greater storing any VOC with a vapor pressure of 0.5
pounds per square inch absolute or greater at standard conditions, the
owner or operator shall:

i.	Equip any gauging or sampling device on the tank with a leak-free
cover which shall be closed at all times, with no visible gaps, except
during gauging or sampling;

ii.	Maintain the fixed roof in a leak-free condition with no holes,
tears or uncovered openings; and

iii.	Install and maintain each roof opening in a leak-free condition at
all times except when the cover must be open for access or, for vents,
when required to be open to relieve excess pressure or vacuum, in
accordance with the manufacturer’s design.

(m)	If a tank is equipped with a floating roof, the roof shall float on
the liquid surface at all times, except during initial fill and during
those intervals when the storage vessel is completely emptied or
subsequently emptied and refilled.

(n)	((Reserved)

(o)	When performing a roof landing of an internal floating roof tank or
a domed external floating roof tank:

1.	When the roof is resting on its leg supports or suspended by cables
or hangers, the process of filling, emptying, or refilling shall be
continuous and shall be accomplished as rapidly as possible; and

2.	After the tank is refilled after being degassed for the first time
after the operative date of these amendments, any in-service roof
landing shall be with the landed height of the floating roof at its
minimum setting.

(p)	The owner or operator of any floating roof tank, not exempt pursuant
to (f)6 or (f)7 above, used to store a VOC shall:

1.	Submit a complete facility-wide tank VOC control plan to the
Department for approval at the address listed at (v) below as follows:

i.	For any floating roof tank not exempt pursuant to (f)6 above, and
existing as of (the operative date of these amendments), submit to the
Department in writing the complete facility-wide tank VOC control plan
by December 1, 2009; or 

ii.	For any new tank, excluding a tank exempt pursuant to (f)6 above,
added to a facility, submit to the Department in writing a new or
updated complete facility-wide tank VOC control plan by 120 days after
the installation of the newly constructed tank(s);

2.	Include in the facility-wide tank VOC control plan, for all floating
roof tanks, except those floating roof tanks exempt pursuant to (f)6
above, the information in (p)2i and ii below or (p)2i and iii below, as
applicable:

i.	A list of each tank at the facility and the following for each tank:

(1)	The tank type;

(2)	The tank volume;

(3)	The tank diameter;

(4)	The tank contents;

(5)	The permit number;

(6)	Any other identifying numbers; and

(7)	The scheduled date of the next internal tank inspection.

ii.	A schedule to implement one or more of the following emission
controls, which must be implemented by (10 years after the operative
date of these amendments).  This schedule shall be consistent with the
facility’s schedule for tank removal from service for normal
inspection and maintenance and with the facility’s schedule for the
installation of any new tank(s):

(1)	A tank configuration such that the bottom of the roof deck can be
lowered to one foot or less from the top-most point of the surface of
the tank floor;

(2)	A method that routes all vapors from the tank to a vapor control
device with a control efficiency of at least 90 percent, from the time
the roof is landed (the cessassion of liquid withdrawal from the tank)
until it is within 10 percent by volume of being refloated during
refill; or

(3)	Other measures approved by the Department as being equally or more
effective in preventing VOC emissions to the outdoor atmosphere.

	iii.	An emissions averaging plan to operate all Range III floating roof
tanks that store gasoline, except those tanks exempt pursuant to (f)6
above, such that their average annual in-service roof landing VOC
emissions, as calculated in accordance with Chapter 7.1.3.2.2 “Roof
Landings” of AP-42, as supplemented or amended and incorporated herein
by reference, or as calculated using another method approved by the
Department in accordance with (v) below, and after applying any
applicable control efficiencies, is less than:

(1)	Five tons per tank per calendar year from the first through the
third years after the operative date of these amendments;

(2)	Four tons per tank per calendar year from the fourth through the
sixth years after the operative date of these amendments;

	(3)	Three tons per tank per calendar year from the seventh through the
ninth years after the operative date of these amendments; and 

			(4)	Two tons per tank per calendar year in the tenth and subsequent
years after the operative date of these amendments.

(q)	On and after ten years after the operative date of these amendments,
any part of a degassing and cleaning operation of a stationary storage
tank performed during the period May 1 through September 30 shall be
performed only as follows:

1.	The owner or operator shall degas a tank storing a VOC with a vapor
pressure equal to or greater than 0.5 psia at standard conditions as
follows: 

i.	Empty the tank of the VOC liquid;

ii.	Minimize VOC vapors in the tank vapor space by one of the following
methods:

(1)	Exhaust VOCs contained in the tank vapor space to a vapor control
system rated at a minimum 95 percent efficiency until the organic vapor
concentration is 5,000 parts per million by volume (ppmv) or less as
methane, or is 10 percent or less of the lower explosive limit,
whichever is less;

(2)	Displace VOCs contained in the tank vapor space to a vapor control
system rated at a minimum 95 percent efficiency by filling the tank with
a suitable liquid until 90 percent or more of the maximum operating
level of the tank is filled.  Suitable liquids are organic liquids
having a TVP of less than 0.5 psia, water, clean produced water, or
produced water derived from crude oil having a TVP less than 0.5 psia; 

If the tank is a free-water knockout tank, a person may degas the tank
vapor space by restricting the outflow of water and floating off the
oilpad, such that at least 90 percent of the tank volume is displaced;
or

Using other measures approved by the Department as being equally or more
effective in preventing VOC emissions to the outdoor atmosphere.

iii.	Discharge or displace the VOC vapors contained in the tank vapor
space to a vapor control  system that is vapor-tight and free of liquid
leaks; and

iv.	As appropriate, temporarily remove for no longer than one hour, a
suitable tank fitting, such as a manway, to facilitate connection to an
external vapor control system.

2.	The owner or operator shall clean a tank storing a VOC with vapor
pressure equal to or greater than 0.5 psia at standard conditions only
if:

i.	At least one of the following cleaning agents is used:

(1)	Diesel fuel;

(2)	A solvent with an initial boiling point of greater than 302 degrees
Fahrenheit;

(3)	A solvent with a vapor pressure less than 0.5 psia;

(4)	A solvent with 50 grams per liter VOC content or less; or

(5)	Some other Department-approved cleaning agent; or

ii.	Steam cleaning is performed.

3.	The owner or operator shall control emissions from the sludge removed
from a tank that stores a VOC with a vapor pressure equal to or greater
than 1.5 psia at standard conditions by:

i.	During sludge removal, controlling emissions from the receiving
vessel by operating a vapor control system that reduces VOC emissions by
at least 95 percent;

ii.	Transporting removed sludge in containers that are vapor-tight and
free of liquid leaks; and

iii.	Storing removed sludge, until final disposal, in containers that
are 	vapor-tight and free of liquid leaks, or in tanks that comply with
(b) above.

(r)	The owner or operator of a VOC stationary storage tank in Range III
shall have an inspection performed by an authorized inspector and
maintain the tank as follows:

1.	The findings of any tank inspection, whether completed or not, shall
be recorded on the Inspection Form at xxxx Appendix II, incorporated
herein by reference, in accordance with the rule’s requirements.  If
an inspection is stopped before completion, indicate the reason for this
action in section J “Comments” of the Inspection Form;

2.	During the inspection, the authorized inspector performing the
inspection must have a copy of the relevant portions of the
Preconstruction Permit or the Operating Permit pertinent to the tank
being inspected.  The authorized inspector shall compare the permit to
the existing tank and actual operating conditions of the tank.  The
authorized inspector shall record any discrepancies between the permit
equipment description and the existing tank, or the permit conditions
and the actual operating conditions of the tank, as verified during an
inspection, in section J “Comments” of the Inspection Form;

3.	Annually inspect the ground level periphery of each tank for possible

leaks in the tank shell.  Complete section D “Ground Level
Inspection” of

the Inspection Form;

4.	Annually complete all necessary calculations and record all required
data 

accordingly in the Inspection Form and Fugitive Emissions Form at xxxx
Appendix II;

5.	Reserved

6.	For a domed external floating roof tank in Range III existing as of
the operative date of these new rules, demonstrate compliance with (l)5
above, by:

i.	Annually, using an explosimeter, by measuring the organic vapor
concentration in the vapor space above the floating roof in terms of the
lower explosive 

limit (LEL), and recording the reading in section E of the Inspection
Form;

ii.	Annually, from an opening in the domed or fixed roof, visually
inspecting the roof to check for permit and rule violations, and
visually checking the roof for stored liquid on top of the roof,
unsealed roof legs, open hatches, open emergency roof drains, or open
vacuum breakers.  Indicate presence of any tears in the fabric of the
visible seal.  Record the findings under section F of the Inspection
Form; and 

iii.	Each time the tank is degassed, but no less than once every 10
years, inspecting the entire secondary seal for the gap requirements at
(l)4iv above using the 1/8 inch, 1/2 inch , and 1-1/2 inch probes. 
Record the gap data in section F(4) of the Inspection Form.  Record all
cumulative gaps between 1/8 inch and 1/2 inch, between 1/2 inch and
1-1/2 inch, and in excess of 1-1/2 inches, in section G of the
Inspection Form.  Measure all secondary seal gaps greater than 1/2 inch
for length and width, and record in section J “Comments” of the
Inspection Form; and;

iv.	Each time the tank is degassed, but no less than once every 10 
years inspecting the entire primary seal for the gap requirements at
(l)3iii above using the 1/8 inch,  1/2 inch and 1-1/2 inch probes.  The
primary seal shall be inspected by holding back the secondary seal. 
Record the gap data in section F(5) of the Inspection Form.  Record all
cumulative gaps between 1/8 inch and 1/2 inch; between 1/2 inch and
1-1/2 inch; and in excess of 1-1/2 inches, in section G of the
Inspection Form.

7.	Reserved

8.	For an internal floating roof tank in Range III, demonstrate
compliance with (l) above, by performing the requirements at (r)6 above;

9.	For a fixed roof tank in Range III that is subject to (l)8 above,
annually demonstrate compliance with (l)9 above by inspecting the
fittings located on the roof, piping, pressure relief valves and all
other valves, to ensure they are leak-free using EPA Method 21 set forth
at 40 CFR Part 60 Appendix A incorporated herein by reference, or using
another method approved by the Department.  Record any readings in
excess of 500 ppm in the Fugitive Emissions Form;

10.	The owner or operator of any VOC stationary storage tank in Range
III shall repair or replace any piping, valve, vent, seal, gasket, or
cover of a roof opening that: 

i.	Is defective;

ii.	Has a visible gap or is not leak-free; or

iii.	Does not meet any applicable requirement of this section; and

11.	The owner or operator of a VOC stationary storage tank in Range III
shall perform the repair or replacement at (r)10 above:

i.	If the tank is already degassed, prior to filling; or

ii.	If the tank is not degassed, within 45 days after discovery of the
needed repair or replacement. If a repair cannot be completed and the
vessel cannot be emptied within 45 days, the owner or operator may use
up to two extensions of up to 30 additional days each.  Documentation of
the owner or operator’s decision to use an extension shall include a
description of the failure, shall document that alternative storage
capacity is unavailable, and shall specify a schedule of actions that
will ensure that the control equipment will be repaired or the vessel
will be completely emptied as soon as practicable.

(s) 	The owner or operator shall maintain on-site, for each tank, for
the time period specified at xxxx, unless another time period is
specified below:

1.	Records that specify each VOC stored and the vapor pressure of each
VOC at standard conditions;

2.	For the owner or operator of a floating roof tank, records of the
roof landing emission information required at (EMISSION STATEMENT RULE);

3.	If the owner or operator of a floating roof tank has not implemented
all control measures pursuant to the tank VOC control plan submitted
pursuant to (p) above, or if a floating roof tank is exempt pursuant to
(f)6 above,  the records of each floating roof landing event including,
but not limited to, tank contents before landing and after refilling;
landed height of the floating roof; height of any liquid remaining in
the bottom of the tank after landing; duration of landing; landing
emissions calculated using AP-42, Chapter 7 methodology, and any other
records needed to create the “Floating Roof Landing Emission Summary
Report” required at (EMISSION STATEMENT RULE);

4.	Records relating to the installation of vapor control devices
described at (t) below;

5.	For the lifetime of the tank, all inspection reports required
pursuant to (r) above;

6.	Records of all tank degassing, cleaning and sludge removal activities
performed pursuant to (q) above; and

7.	(Reserved)

8.	Repair and replacement documentation required at (r)11ii above.

(t)	On and after (the operative date of these amendments), the owner or
operator of any floating roof stationary storage tank that installs a
vapor control device in accordance with (p)2ii above shall record
operating parameters as follows:

1.	For a thermal oxidizer, the owner or operator shall record the
following on a continuous basis or at a frequency approved by the
Department:

i.	The operating temperature at the exit of the combustion chamber;

ii.	The carbon monoxide concentration in the flue gas emitted to the
outdoor atmosphere; and 

iii.	Upon request of the Department, any other operating parameter
relevant to the prevention or control of air contaminant emissions from
the tank or the oxidizer;

2.	For a vapor control system that uses carbon or other adsorptive
material, the owner or operator shall record the following on a
continuous basis or at a frequency approved in writing by the
Department:

i.	The concentration of the total applicable VOCs in the gas emitted to
the outdoor atmosphere; or

ii.	Provided that the owner or operator confirms daily that the
automatic switching between carbon beds is functioning in accordance
with permit conditions, the date of carbon bed replacement; and, upon
request of the Department, any other operating parameter relevant to the
prevention or control of air contaminant emissions from the tank or the
adsorber; and

3.	For any other vapor control device, upon request of the Department,
any operating parameter relevant to the prevention or control of air
contaminant emissions from the tank or that vapor control device.

(u)	If, during an inspection required at (r) above, or at any other
time, the owner or operator determines that a tank does not comply with
(l) above, the owner or operator shall submit a written report to the
Department including the cause of the inspection failure, corrective
actions to achieve compliance and measures taken to prevent a
re-occurrence of the inspection failure.  If the facility has an
operating permit, in accordance with xxxx, the owner or operator shall
include this report as part of the periodic compliance reports required
at xxxx.  If the facility does not have an operating permit, the owner
or operator shall submit this report to the Department within three
business days after becoming aware of the non-compliance.

(v)	An owner or operator that seeks Department approval for an alternate
method for calculating a tank’s roof landing emissions pursuant to
(p)2iii above shall:

1.	Prepare an application that includes:

i.	A description of the proposed alternate method;

ii.	The parameters in the alternate method; and

iii.	Supporting documentation that justifies the use of the alternate
method; and

2.	Submit a complete application in writing to the Department at: 

APPENDIX 

xxxx

INSPECTIONS

Equipment Needed:

Organic Vapor Analyzer (OVA) calibrated with methane in accordance with
EPA Method 21, as supplemented or amended and incorporated herein by
reference; explosimeter calibrated with methane (for internal floating
roof tanks); liquid resistant measuring tape or device; tank probe (to
measure gaps in tank seals - 1/8 inch, 1/2 inch, 1-1/2 inch);
explosivity meter; flashlight.

Inspection Procedures (Model rule.2(r)):

Any inspection shall be performed by an authorized inspector.

The findings of any tank inspection, whether completed or not, shall be
recorded on the Inspection Form at Model Rule, Appendix , prescribed by
the Department in accordance with the rule's requirements.  If an
inspection is stopped before completion, indicate the reason for this
action in section J “Comments” of the Inspection Form.

During the inspection, the person(s) conducting the inspection must have
a copy of the relevant portions of the Preconstruction Permit or the
Operating Permit pertinent to the tank being inspected.  Any
discrepancies between the permit equipment description and the existing
tank or the permit conditions and the actual operating conditions of the
tank as verified during an inspection must be recorded in section J
“Comments” of the Inspection Form.

Inspect the ground level periphery of each tank for possible leaks in
the tank shell.  Complete section D “Ground Level Inspection” of the
Inspection Form.

For internal floating roof and domed tanks:

1.	Using an explosimeter, measure the concentration of the vapor space
above the internal floating roof in terms of lower explosive limit
(LEL), and record the reading in section E of the Inspection Form.

 

2.	Visually inspect the deck fittings and the visible seal of the rim
seal system, and record findings in section E of the Inspection Form.
During visual inspection of the roof, check for stored liquid on top of
the roof, unsealed roof legs, open hatches, open emergency roof drains
or vacuum breakers and record the findings on the Inspection Form
accordingly.  Indicate presence of any tears in the fabric of both seals

3.	Conduct gap measurements of the deck fittings and rim seal system
each time the tank is emptied and degassed but no less than once every
10 years. Record all cumulative gaps between 1/8 inch and 1/2 inch;
between 1/2 inch and 1-1/2 inch; and in excess of 1-1/2 inches, for both
primary and secondary seals in section G of the Inspection Form. 
Secondary seal gaps greater than 1/2 inch should be measured for length
and width, and recorded in section J “Comments” of the Inspection
Form

For fixed roof tanks:

1.	Inspect the pressure relief valves, piping, valves and fittings
located on the roof for leak-free condition.  Record any readings in
excess of 500 ppm in the Fugitive Emissions Form.

G. 	Complete all necessary calculations and record all required data
accordingly in the Inspection Form and Fugitive Emissions Form.



INSPECTION FORM

**PLEASE COMPLETE FORM LEGIBLY IN BLACK INK**

Program Interest No. ___________  Permit Activity No.
____________________  Tank ID No. E ___________ 

Inspection Date _____________________ Time__________ 

Is this a Follow-up Inspection?    No   FORMCHECKBOX     Yes  
FORMCHECKBOX     If yes, Date of Previous Inspection
____________________

COMPANY INFORMATION:

Company Name
_______________________________________________________________________

Location Address	________________________________ City
____________________	 Zip __________

Mailing Address	_________________________________ City
____________________ Zip __________

Contact Person	_________________________________ Title
____________________

Phone		_________________________________

B.   INSPECTION CONDUCTED BY:

Name		__________________________________ Title
________________________________

Company Name	__________________________________ Phone
_______________________________

Mailing Address	__________________________________ City
___________________ Zip __________

C.  TANK INFORMATION:

Capacity ________ (gals) Installation Date __________ Tank Diameter
_____ (ft) Tank Height ______ (ft)

Product Type ________________________________________ Product Vapor
Pressure __________ (psia)

Type of Tank:  Riveted   FORMCHECKBOX    Welded   FORMCHECKBOX   Other  
FORMCHECKBOX  (describe) _______________________________________

Color of Shell   ______________________________         Color of Roof
______________________________

Roof Type: 	 Pontoon   FORMCHECKBOX      Double Deck    FORMCHECKBOX    
 Other   FORMCHECKBOX  (describe) ________________________________

External floating roof    FORMCHECKBOX  		 Internal floating roof or
domed tank     FORMCHECKBOX  

GROUND LEVEL INSPECTION:

1) 	Product Temperature ________________ ° F 	2) Product level
______________________ (ft)

List type and location of leaks found in tank shell. 

________________________________________________________________________
______________

List any discrepancies between the existing equipment and the equipment
description on the Permit. 

________________________________________________________________________
______________

5)	Is tank in compliance with Permit conditions?  No   FORMCHECKBOX   
Yes   FORMCHECKBOX    If no, explain ____________________

________________________________________________________________________
______________

________________________________________________________________________
______________

E.	 INTERNAL FLOATING ROOF OR DOMED TANK: 

1)	Check vapor space between floating roof and fixed roof with
explosimeter. _______Percent LEL.

2)	Conduct visual inspection of roofs and the visible seal of the rim
seal system.

3)	Are all roof openings covered?  No   FORMCHECKBOX    Yes  
FORMCHECKBOX      If no, explain in Comments section (J) and 	proceed to
part (H)(6).

F. 	EXTERNAL FLOATING ROOF TANK (or DOMED TANK AND INTERNAL FLOATING
ROOF TANK when needed)

On the diagram (below) indicate the location of the ladder, roof
drain(s), anti-rotation device(s), platform, gauge well, and vents or
other appurtenances.  Note information in relation to North (to the top
of the worksheet).

Describe any uncovered openings found on the roof in the Comments
section (J). 

Identify any tears in the seal fabric.  Describe and indicate on diagram
(below):

4)	Secondary Seal Inspection

Type of Secondary Seal:
_____________________________________________________________

b. 	Does 1/2” probe drop past seal?   No    FORMCHECKBOX      Yes   
FORMCHECKBOX     If yes, measure length(s) and show on diagram.

c.	Does 1/8” probe drop past seal?   No   FORMCHECKBOX       Yes  
FORMCHECKBOX      If yes, measure length(s) and show on diagram.

d.	Record dimensions of gap for gaps

> 1/8”
__________________________________________________________________

> 1/2”
__________________________________________________________________

NOTE:	Record the actual width and cumulative length of gaps in feet and
inches.

(Do not include gaps > 1/2” in 1/8” measurements)

5) 	Primary Seal Inspection

a)	Type of Primary Seal:    FORMCHECKBOX   Shoe;     FORMCHECKBOX  
Tube;     FORMCHECKBOX   Other ________________________________

b)	Shoe seal: Does 1-1/2” probe drop past seal?  No   FORMCHECKBOX    
Yes   FORMCHECKBOX   If yes, measure length(s) and 	  	   show on
diagram.

c)	Shoe seal: Does 1/2” probe drop past seal?     No   FORMCHECKBOX   
 Yes   FORMCHECKBOX    If yes, measure length(s) and 								    show 
on diagram.

d)	Tube seal: Does 1/2” probe drop past seal?      No   FORMCHECKBOX  
 Yes   FORMCHECKBOX     If yes, measure length(s) and 								     show
on diagram.

e)	All seal types: Does 1/8” probe drop past seal?  No   FORMCHECKBOX 
  Yes   FORMCHECKBOX     If yes, measure length(s) and 								      
show on diagram.

Record dimensions of gaps for gaps

> 1/8”  
_____________________________________________________________________

	

> 1/2”  
_____________________________________________________________________

	

>1-1/2”
_____________________________________________________________________

	

NOTE: Record the actual width and cumulative length of gaps in feet and
inches.  (Do not include gaps > 1/2” in 1/8” measurements, or gaps >
1-1/2” in 1/2” measurements)

6)	Deck Fitting Inspection

(Circle one)  Does 1/8” probe drop past gasket seal or does seal fail
EPA Method 21?   No   FORMCHECKBOX  	Yes   FORMCHECKBOX     If yes,
identify fitting.

Legend

Equipment

AD         Antirotational device

GW        Gauge well

┬             Leg stand

RD          Roof drain

*             Emergency roof drain

∞            Vacuum breaker

▲           Vent

PL           Platform & ladder

Defects

LT         Leg top

╫            Leg pin

OH        Open hatch

V\          Torn  seal

│-P-│    Primary seal gap

NOTE: Show defects using symbols.  Show seal gaps and lengths.

IF INTERNAL FLOATING ROOF OR DOMED TANK, PROCEED TO PART H(6) WHEN
APPROPRIATE:

G. 	CALCULATIONS - complete all applicable portions of the following:

Record dimensions of indicated gaps (from F(4)(d), F(5)(b), and
F(5)(f)). Record in feet and inches.

Gaps in primary seal between 1/8 and 1/2 inch:
____________________________________

Gaps in primary seal between 1/2 and 1-1/2 inch:
____________________________________

Gaps in primary seal greater than 1-1/2 inches:
____________________________________

Gaps in secondary seal between 1/8 and 1/2 inch:
____________________________________

Gaps in secondary seal greater than 1/2 inch:
____________________________________

Multiply diameter (ft) of tank to determine appropriate gap limits:

5 percent circumference = diameter X 0.157 = ____60 percent circ. =
diam. X 1.88 = _______

10 percent circumference = diameter X 0.314 = ____ 90 percent circ. =
diam. X 2.83 = _____

30 percent circumference = diameter X 0.942 = ____95 percent circ. =
diam. X 2.98 = ______

H. 	DETERMINE COMPLIANCE STATUS OF TANK:

1)	Were any openings found on the roof? 				No   FORMCHECKBOX  	 Yes  
FORMCHECKBOX  

2)	Were any tears in the seals found? 					No   FORMCHECKBOX  	 Yes  
FORMCHECKBOX  

3)	Is the product level lower than the level at which the roof would be
floating?  	No   FORMCHECKBOX  	Yes   FORMCHECKBOX  

4)	Secondary Seal:

Did 1/2” probe drop between shell and seal? 			 	 No   FORMCHECKBOX  
Yes   FORMCHECKBOX  

Did cumulative 1/8”- 1/2” gap exceed 95percent circumference length?
No  FORMCHECKBOX   	Yes  FORMCHECKBOX  

Primary Seal:

Shoe:	Did 1-1/2” probe drop between shell and seal?			No  
FORMCHECKBOX   Yes   FORMCHECKBOX  

Did cumulative 1/2” - 1-1/2” gap exceed 30 percent circumference
length, and

did cumulative 1/8 - 1/2” gap exceed 60 percent circumference length? 
No  FORMCHECKBOX   	Yes  FORMCHECKBOX  

Did any single continuous 1/8” - 1-1/2” gap exceed 10 percent
circumference. 

length?								No   FORMCHECKBOX   Yes   FORMCHECKBOX  

Tube:	Did 1/2” probe drop between shell and seal?				No   FORMCHECKBOX
  Yes   FORMCHECKBOX  

Did cumulative 1/8”- 1/2” gap exceed 95 percent circumference
length? No  FORMCHECKBOX   Yes  FORMCHECKBOX  

6)	Internal floating roof (installed before 6/1/84): 

Did percent LEL exceed 50 percent?						No   FORMCHECKBOX   Yes  
FORMCHECKBOX  

(installed after 6/1/84) or domed tank: Did percent LEL exceed 30
percent? 	No   FORMCHECKBOX   Yes   FORMCHECKBOX  

7)	Does tank have permit conditions? 						No   FORMCHECKBOX   Yes  
FORMCHECKBOX  

Does tank comply with these conditions? 					No   FORMCHECKBOX   Yes  
FORMCHECKBOX  

I.	IF THE INSPECTION WAS TERMINATED PRIOR TO COMPLETION FOR ANY REASON,
PLEASE EXPLAIN:
________________________________________________________________________
______________

________________________________________________________________________
______________

J. 	COMMENTS: 

Use this section to complete answers to above listed items and to
describe repairs made to the tank; include date and time repairs were
made.

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

________________________________________________________________________
______________

K.	Certifications

“I certify under penalty of law that I believe the information
provided in this document is true, accurate and complete.  I am aware
that there are significant civil and criminal penalties, including the
possibility of fine or imprisonment or both, for submitting false,
inaccurate or incomplete information.”

Authorized inspector who completed the inspection: 

________________________________________________________________________
____Date: _______________

(Signature) 			 

Individual with Direct Knowledge:

________________________________________________________________________
___Date: ________________

(Signature of person with direct knowledge of, and responsibility for,
the information on this form)

Model Rule.2(s) requires all inspection reports required pursuant to
Model Rule.2(r) to be maintained on-site for the lifetime of the
tank.FUGITIVE EMISSIONS FORM

Company Information

Program Interest No.

Company Name

Address

Contact/Phone Number

Permit Activity Number

	Report Date

Tank ID	Type	Fitting	Date	Leak 

Concen-tration	Type of Repair	Date	Post-Repair Leak Concen-tration

	

	

	

	

	

	

	

	

	

	

	

	

	

Model Rule.2(s) requires all inspection reports required pursuant to
Model Rule.2(r) to be maintained on-site for the lifetime of the tank.

		CAS #					CHEMICAL

Version 2.0

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ఀSubpart WW [§63.1063(a)(2)(viii)], the appropriate control measures
for a slotted guidepole are to be equipped with a gasketed cover and a
pole wiper, plus either a pole float or a pole sleeve.  Paragraph (x) as
originally worded suggested that this was an either/or option, in that
it applied only to those slotted guidepoles equipped with a pole float. 
The language should more clear, however, in specifying the either/or
aspect of these control measures.

Move this requirement to (xi).