Authority: IC 13-14-8
Affected: IC 13-17
Sec. 2.
(a) The
emission limitations specified in this article shall be achieved through one
(1) or any combination of the following:
(1)
Carbon adsorption.
(2) Thermal or
catalytic incineration. The owner or operator of a source using a natural gas
afterburner incineration method may petition the commissioner for permission to
not operate the natural gas afterburner during the months of November,
December, January, February, and March. The commissioner may allow such
exemption if the owner or operator adequately demonstrates that the operation
of the natural gas afterburner is not required for control of toxic substances
or odor.
(3) Higher solids (low
solvent) coatings, including powder, ultraviolet, and electron beam
coatings.
(4) Waterborne
coatings.
(5) Equivalent emission
limitations based on an actual measured transfer efficiency greater than the
specified baseline transfer efficiency as follows:
(A) This subdivision is applicable only to
the following:
(B) For metal furniture coating operations,
large appliance coating operations, or miscellaneous metal coating operations,
this subdivision and the equivalent emission limits it contains may not be used
to determine compliance unless a test method for determining actual measured
transfer efficiency has been specified by U.S. EPA or submitted to U.S. EPA and
approved as a SIP revision.
(C) The
equivalent emission limitations in units of kilograms of volatile organic
compounds (VOC) per liter solids deposited (pounds of VOC per gallon solids
deposited), baseline transfer efficiencies, and baseline volume percent solids
content of the coating are specified below:
| Category |
Equivalent Emission Limit |
Baseline Transfer Efficiency |
Baseline Volume Percent Solids |
| Automobiles and light duty trucks assembly (topcoat)
|
1.83 (15.1) |
30 |
62.0 |
| Metal furniture |
1.01 (8.4) |
60 |
59.2 |
| Large appliances |
0.91 (7.4) |
60 |
62.0 |
| Miscellaneous metal coating category |
|
|
|
| Clear coatings |
2.08 (17.3) |
60 |
41.6 |
| Air dried up to 90°C |
1.34 (11.2) |
60 |
52.4 |
| Extreme performance coatings |
1.34 (11.2) |
60 |
52.4 |
| All other coatings and coating systems |
1.01 (8.4) |
60 |
59.2 |
(D)
Compliance with an equivalent emission limit shall be determined as follows:
(i) For automobile and light duty topcoating
operations and combined primer-surfacer and topcoat operations, use procedures
found in "Protocol for Determining the Daily Volatile Organic Compound Emission
Rate of Automobile and Light-Duty Truck Primer-Surfacer and Topcoat
Operations"; EPA-453/R-08-002; September 2008*.
(ii) For metal furniture coating operations,
large appliance coating operations, or miscellaneous metal coating operations
use the following equation:
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Where: E = Actual emissions in pounds of VOC per gallon of
coating solids deposited.
L = Actual VOC content in pounds of VOC per gallon of
coating, as applied, excluding water and nonphotochemically reactive
hydrocarbons.
D = Actual density of the VOC in the coating in pounds per
gallon of VOC.
T = Actual measured transfer efficiency.
(6) The use of
nonphotochemically reactive hydrocarbons as defined in
326 IAC 1-2-48.
(7) A daily volume-weighted average of all
coatings applied in a coating line or printing line subject to the requirements
in
326 IAC 8-2 or
326 IAC 8-5-5. Records of daily
usage of gallons solids coating and VOC content of each coating, ink, and
solvent shall be maintained and made available upon request. Also, records of
daily emissions in pounds VOC shall be maintained and made available upon
request. If daily records sufficient to determine an accurate daily weighted
average are not available, each coating, ink, and solvent shall meet the
requirements of the applicable section.
(8) The use of an emission control device
specifically allowed under provisions of any rule in this article to meet the
emission limitations specified in the rule.
(9) This subdivision is applicable only to
dip coating or flow coating operations at miscellaneous metal coating
operations subject to
326 IAC 8-2-9 as follows:
(A) For dip coating or flow coating
operations only. The equivalent emission limit in kilograms VOC/liter
(lb/gallon) of coating solids is as follows:
| Miscellaneous metal coating category |
Limit in kilograms VOC/liter (lb/gallon) of coating less
water |
Equivalent emission limit in kilograms VOC/liter
(lb/gallon) of coating solids |
| Clear coatings |
0.52 (4.3) |
1.22 (10.2) |
| Air dried or forced warm air dried at temperatures up to
ninety (90) |
|
|
| degrees Celsius (one hundred ninety-four (194) degrees
Fahrenheit) |
0.42 (3.5) |
0.80 (6.7) |
| Extreme performance coatings |
0.42 (3.5) |
0.80 (6.7) |
| All other coatings and coating application systems |
0.36 (3.0) |
0.61 (5.1) |
(B)
Compliance with the equivalent emission limit shall be determined by doing the
following:
(i) Calculate the VOC content of a
dip coating or flow coating, expressed in units of weight of VOC per volume of
coating solids, on a thirty (30) day rolling average basis using the following
equation: VOC
A = (3(W
oi
×
D
ci
× Q
i) + 3
(W
oJ
× D
dJ
×
Q
J))/(3(V
ni
×
Q
i))
Where: VOCA = The as-applied, VOC
content in pound VOC per gallon (lb VOC/gal) of coating solids for a dip
coating or flow coating, calculated on a thirty (30) day rolling average
basis.
Woi = Percent VOC by weight of each as
supplied coating (i) added to the dip coating or flow coating process,
expressed as a decimal fraction (that is 55% = 0.55).
Dci = Density of each as supplied
coating (i) added to the dip coating or flow coating process, in pounds per
gallon.
Qi = Quantity of each as supplied
coating (i) added to the dip coating or flow coating process, in
gallons.
Vni = Percent solids by volume of each
as supplied coating (i) added to the dip coating or flow coating process,
expressed as a decimal fraction.
WoJ = Percent VOC by weight of each
thinner (J) added to the dip coating or flow coating process, expressed as a
decimal fraction.
DdJ = Density of each thinner (J)
added to the dip coating or flow coating process, in pounds per gallon.
QJ = Quantity of each thinner (J)
added to the dip coating or flow coating process, in gallons.
(ii) Maintain the following records on a
daily basis for each VOC-containing coating, solvent, or other material added
to the tank:
(AA) The following parameters for
each coating, thinner, or other material as supplied:
(aa) The coating, thinner, or other material
identification number.
(bb) The
volume used.
(cc) The mix
ratio.
(dd) The density or specific
gravity.
(ee) The weight percent of
total volatiles, water, solids, and exempt solvents.
(ff) The volume percent of solids.
(BB) The VOC content of each
coating and thinner as supplied.
(CC) The VOC content of each as-applied
coating.
(iii) Maintain
all records necessary to confirm compliance as follows:
(AA) On site for the most recent three (3)
year period.
(BB) Make reasonably
accessible for an additional two (2) years.
(b) VOC emissions shall
be limited to not greater than the equivalent emissions, expressed as pounds of
VOC per gallon of coating solids, allowed under the applicable emission
limitation contained in this article for any surface coating operation using
the compliance methods contained in subsection (a) or section 5 of this rule as
follows:
(1) Equivalency shall be determined
by the following equation:
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Where: E = Equivalent emission limit in pounds of VOC per
gallon of coating solids, as applied.
L = Applicable emission limit from this article in pounds of
VOC per gallon of coating.
D = Baseline solvent density of VOC in the coating and shall
be equal to seven and thirty-six hundredths (7.36) pounds of VOC per gallon of
solvent.
(2) Compliance
with an equivalent emission limit established in subdivision (1) shall be
determined according to the following equation:
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Where: Ea = Actual emissions in pounds
of VOC per gallon of coating solids, as applied.
La = Actual VOC content in pounds of
VOC per gallon of coating, as applied.
Da = Actual density of the VOC in the
coating, as applied, in pounds per gallon of VOC.
(c) The overall efficiency of any capture
system and control device determined by the test methods and procedures
specified in section 4 of this rule shall be not less than the equivalent
overall efficiency, which shall be calculated by the following equation:
Click here
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Where: V = The actual VOC content of the coating or, if
multiple coatings are used, the daily weighted average VOC content of all
coatings, as applied to the subject coating line as determined by the
applicable test methods and procedures specified in section 4 of this rule in
units of pounds of VOC per gallon of coating solids as applied.
E = Equivalent emission limit in pounds of VOC per gallon of
coating solids as applied.
O = Equivalent overall efficiency of the capture system and
control device as a percentage.
(d) Any other equivalent method must be
submitted and approved as a SIP revision by U.S. EPA before it can be used to
determine or achieve compliance with any provision of this article.
*This document is incorporated by reference and may be
obtained from the Library Services Office (MD-35), United States Environmental
Protection Agency, Office of Air Quality, Planning and Standards, Research
Triangle Park, NC 27711 or is available for review and copying at the Indiana
Department of Environmental Management, Office of Air Quality, Indiana
Government Center North, Tenth Floor, 100 North Senate Avenue, Indianapolis,
Indiana 46204.
