Is the vent located in the Beaumont-Port Arthur, Dallas-Fort Worth, El Paso, or Houston-Galveston- Brazoria areas? Is the vent located in Nueces or Victoria County? Start Is the vent located in Aransas, Bexar, Calhoun, Matagorda, San Patricio, or Travis County? §115.121(a) 1 End 15 §115.121(c) 22 §115.121(b) 30 TAC Chapter 115: Subchapter B, Vent Gas Control does not apply. §115.127(a)(6) §115.720(a) No No Yes Do all VOCs in the vent gas stream originate from another source which is subject to a different Division within 30 TAC Chapter 115, other than 30 TAC Chapter 115, Subchapter H, Division 1: HRVOCs Vent Gas Control? Yes No Yes No Yes Below is a flowchart describing 30 TAC Chapter 115, Vent Gas Control. It will likely not be accessible using a screen reader. For the text of the statute/rule, please go to 30 TAC Chapter 115, Vent Gas Control (1 of 31) Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015) Layered These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change. ***
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Is the vent
located in theBeaumont-Port Arthur,
Dallas-Fort Worth, El Paso, or Houston-Galveston-
Brazoria areas?
Is the
vent located in
Nueces or Victoria
County?
Start
Is the vent
located in Aransas,
Bexar, Calhoun, Matagorda, San
Patricio, or Travis
County?
§115.121(a)
1
End15
§115.121(c)
22
§115.121(b)
30 TAC Chapter 115:
Subchapter B, Vent Gas
Control does not apply.
§115.127(a)(6)
§115.720(a)
No
No
Yes
Do all VOCs in
the vent gas stream originate from another source
which is subject to a different Division within
30 TAC Chapter 115, other than 30 TAC Chapter 115, Subchapter H,
Division 1: HRVOCs Vent
Gas Control?
Yes
No
Yes
No
Yes
Below is a flowchart describing 30 TAC Chapter 115, Vent Gas Control. It will likely not be accessible using a screen reader. For the text of the statute/rule, please go to
30 TAC Chapter 115, Vent Gas Control(1 of 31)
Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015) LayeredThese flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change. ***
stream a combustion unitexhaust stream from a unit which is
not being used as a control device for any vent gas
stream subject to this Division and which originates from a
non-combustion source?
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(2 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
from a SOCMI reactor process or distillation operation?
§115.121(a)(2)(A)
Yes
No
Is the
vent gas stream from an
air oxidation synthetic organic chemical
manufacturing
process?
3
No 5
2
§115.121(a)(2)(B)
Yes
9
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(3 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
process or distillation operation vent gas stream with a flow-
rate < 0.388 scf/min or VOC
concentration < 500 ppm
by volume?
§115.127(a)(4)(C)
Comply with the following:
Standard
§115.127(a)(4)(C)[G]§115.122(a)(4)
§115.127(a)(4)
Monitoring/Testing
[G]§115.125
§115.126(2), (3)(D)
Recordkeeping
§115.126
§115.126(2), (3), (3)(D)
§115.127(a)(4)(B)
No
No
4End
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(4 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
operation meet the requirements of 40 Yes§115.127(a)(4)(D)
CFR 60.660(c)(4) or§115.127(a)(4)
60.662(c)?
§115.127(a)(4)(D)
No End
Does the Comply with the following:
SOCMI reactor Standard
process meet the requirements of §115.127(a)(4)(E)
40 CFR 60.700(c)(2) §115.127(a)(4)
or 60.702(c)?
§115.127(a)(4)(E)No
10
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
combined weight of VOC < 100 lbs (45.4 kg) in any continuous
24-hour period?
§115.127(a)(3)(A)
Does the
vent gas stream have
a VOC concentration < 408 ppmv?
§115.127(a)(3)(C)
No
No
Yes
9
Yes
Is the vent
gas stream from an air
oxidation SOCMI process with
a VOC concentration
< 612 ppmv?
§115.127(a)(3)(B)
No
Comply with the following:
Standard
§115.127(a)(3)(A)
[G]§115.122(a)(4)§115.127(a)(3)
Monitoring/Testing[G]§115.125
§115.126(2)
Recordkeeping
§115.126
§115.126(2)
Comply with the following:Standard
§115.127(a)(3)(B)
[G]§115.122(a)(4)
§115.127(a)(3)
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping
§115.126
§115.126(2)
Comply with the following:
Standard
§115.127(a)(3)(C)[G]§115.122(a)(4)
§115.127(a)(3)
Monitoring/Testing
[G]§115.125§115.126(2)
Recordkeeping
§115.126
§115.126(2)
10
11
12
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(10 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
have a VOC emission rate or concentration less than
the applicable exemption limits at maximum actual operating conditions and
choosing to use alternative
recordkeeping? §115.126(4)
No
Comply with the following:
Recordkeeping§115.126(4)
End
Does the vent
have a VOC emission
rate or concentration less thanthe applicable exemption limits at maximum
actual operating conditions and
choosing to use alternative
recordkeeping?
§115.126(4)
Comply with the following:
Monitoring/Testing
§115.126(3)(B)Recordkeeping
§115.126(3)
§115.126(3)(B)
Comply with the following:
Monitoring/Testing
§115.126(3)(C)
Recordkeeping
§115.126(3)
§115.126(3)(C)
Yes
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(12 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
documenting compliance per§115.123(a)(1) being utilized for a bakery in
the Dallas-Fort Worth, El Paso,
or Houston-Galveston-Brazoria
areas?
Is the bakery in the
Houston-Galveston-Brazoria
area with a total weight of VOC emitted
from all bakery ovens on the property,
when uncontrolled, > 25 tons
per calendar year?
§115.122(a)(3)(A)
Yes
No
33
No
Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
the vent gas stream originate from another source which is subject to
another Division within 30
TAC Chapter 115?
§115.127(b)(3)
§115.127(b)(4)
End
30 TAC Chapter 115:
Subchapter B, Vent Gas
Control does not apply.
Is the
potential vent gas stream a combustion unit
exhaust stream from a unit which
is not being used as a control device for any
vent gas stream subject to this Division
and which originates from a non-combustion
source?
15
16
Is the vent gas
emitting ethylene associated
with the formation, handling, or storage of
solidified low-density
polyethylene?
§115.121(b)(1)18
Yes
No
No
YesNo
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(15 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
combined weight of VOC or classes of compounds, specified in
§115.121(b)(2)-(3), < 100 lbs.
in any continuous
24-hr period?
§115.127(b)(2)(A)
Comply with the following:
Standard
§115.127(b)(2)(A)
§115.127(b)(2)
Monitoring/Testing
[G]§115.125§115.126(2)
Recordkeeping
§115.126
§115.126(2)
No
Comply with the following:Recordkeeping
§115.126(4)
End
Does the vent
have a VOC emission
rate or concentration less than
the applicable exemption limits at maximum
actual operating conditions and
choosing to use alternative
recordkeeping?
17
§115.126(4)
Comply with the following:
Monitoring/Testing
§115.126(3)(B)
Recordkeeping
§115.126(3)
§115.126(3)(B)
NoYes
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(16 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
vent gas stream have a concentration of the VOC specified in
§115.121(b)(2)-(3) of
< 30,000 ppmv?
Comply with the following:
Standard§115.127(b)(2)(B)
§115.127(b)(2)(B)
§115.127(b)(2)
Monitoring/Testing[G]§115.125
§115.126(2)
Recordkeeping
§115.126
§115.126(2)
No
Comply with the following:
Recordkeeping
§115.126(4)End
Does the vent
have a VOC emission
rate or concentration less than theapplicable exemption limits at maximum
actual operating conditions and
choosing to use alternative
recordkeeping?§115.126(4)
No
Yes
Yes
18
Comply with the following:Monitoring/Testing
§115.126(3)(C)
Recordkeeping
§115.126(3)
§115.126(3)(C)
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(17 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
from a low-polyethylene plant (LDPE) emitting < 1.1 lbs of
ethylene per 1,000 pounds of product from all
vent gas streams associated with
the formation, handling, and
storage of the solidified
product?
§115.127(b)(1)
Yes
No 19
End
Comply with the following:
Standard
§115.127(b)(1)Monitoring/Testing
[G]§115.125
§115.126(2), (3)(A)
Recordkeeping
§115.126
§115.126(2), (3), (3)(A)
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(18 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
demonstrating and documenting compliance per §115.123(b) being
utilized ?
§115.123(b)
No
19
End
Comply with the following:
Standard
§115.123(b)
§115.910
Monitoring/Testing
[G]§115.125§115.126(2)
Recordkeeping
§115.126§115.126(2)
Comply with the following:
Standard
§115.122(b)
§115.121(b)
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping
§115.126
§115.126(2)
20
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(19 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
from another source which is subject to another Division within 30 TAC
Chapter 115?
§115.127(c)(3)
30 TAC Chapter 115:
Subchapter B, Vent Gas
Control does not apply.
End
22
Is the vent attached
to a combustion unit which is not
being used as a control device for any non-
combustion vent gas stream subject
to this Division?
No
Yes
§115.127(c)(4)
Is the vent gas
emitting ethylene associated
with the formation, handling, or storage of
solidified low-density
polyethylene?
§115.121(c)(1)(A)
24
23
No
No
Yes
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(21 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
from a low-density polyethylene plant emitting < 1.1 lbs of ethylene per
1,000 lbs of product from all
vent gas streams?
§115.127(c)(1)(A)
No
23
Comply with the following:Standard
§115.127(c)(1)(A)
§115.127(c)(1)
Monitoring/Testing[G]§115.125
§115.126(2)
§115.126(3)(A)
Recordkeeping
§115.126
§115.126(2)-(3), (3)(A)
Is an alternate
method of demonstrating
and documenting compliance
per §115.123(c) being
utilized ?
Yes
Comply with the following:
Standard
§115.123(c)§115.910
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping§115.126
§115.123(c) §115.126(2)
End
No
26
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(22 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
concentration of the VOC specified in §115.121(c)(1)(B)-(C) of
< 30,000 ppmv?
Comply with the following:
Standard
§115.127(c)(1)(C)
§115.127(c)(1)(C)
§115.127(c)(1)
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping
§115.126
§115.126(2)
Comply with the following:
Recordkeeping
§115.126(4)End
25
Yes
Does the vent
have a VOC emission
rate or concentration less than
the applicable exemption limits at maximum
actual operating conditions and choosing to use alternative
recordkeeping?
§115.126(4)
Comply with the following:
Monitoring/Testing
§115.126(3)(C)
Recordkeeping
§115.126(3)§115.126(3)(C)
Is an alternate
method of demonstrating
and documenting compliance per §115.123(c) being
utilized ?
Yes
Comply with the following:
Standard
§115.123(c)
§115.123(c)
§115.910
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping§115.126
§115.126(2)
End
26
No
No
Yes
No
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(24 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
< 5 tons of total uncontrolled VOCin any one calendar
year?
Is the gas
stream emitted from a
catalyst regeneration of a petroleum
or chemical process system, basicoxygen furnace, or fluid
coking unit?
§115.121(c)(2)
Comply with the following:
Standard
§115.127(c)(2)
Monitoring/Testing
[G]§115.125§115.126(2)
Recordkeeping
§115.126
§115.126(2)
Yes
29
No
27
Is an alternate
method of demonstrating
and documenting compliance per
§115.123(c) being
utilized ?
Yes
Comply with the following:
Standard
§115.123(c)
§115.910
Monitoring/Testing
[G]§115.125
§115.126(2)
Recordkeeping
§115.126§115.123(c) §115.126(2)
End
No
28
No
Yes
30 TAC Chapter 115, Subchapter B,
Division 2: Vent Gas Control(26 of 31)
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
***Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.
Last Modified: October 31, 2019 From 30 TAC Chapter 115 (Effective June 25, 2015)These flowcharts are for use by sources subject to the Federal Operating Permit Program and are subject to change.