Texas SIP: 30 TAC 115.112-115.119: Storage of Volatile Organic Compounds; SIP effective 2008.09.15 TXd90 to 2010.05.27

Regulatory Text: 
Chapter 115.  Control of Air Pollution from Volatile Organic Compounds.

SUBCHAPTER B : GENERAL VOLATILE ORGANIC COMPOUND SOURCES

5B1 DIVISION 1: STORAGE OF VOLATILE ORGANIC COMPOUNDS
As approved by EPA July 17, 2008 (73 FR 40972) effective September 15, 2008 (TXd90)

Outline: 
§115.112.  Control Requirements. 5-56, TXc105P last
§115.112.  Tables I(a), I(b), and II(a).
§115.113.  Alternate Control Requirements. 5-71, TXd89
§115.114.  Inspection Requirements. 5-56, TXc105P last, all TXc105 
§115.115.  Approved Test Methods 5-56, TXc105P last 
§115.116.  Monitoring and Recordkeeping Requirements. 5-71, TXd89
§115.117.  Exemptions. 5-71, TXd89
§115.119.  Counties and Compliance Schedules. 5-84, TXd90


§115.112.  Control Requirements. 5-56, TXc105P last
As adopted by TNRCC April 30, 1997 effective May 22, 1997 (5-56).
As approved by EPA January 26, 1999 (64 FR 03841) effective March 29, 1999 at 40 CFR 52.2270/52.2299(c)(105).  See the “Chapter 115 SIP Map” document above for the meaning of the left-justified codes before each paragraph.

88C   (a)  For all persons in the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and Houston/Galveston areas as defined in §115.10 of this title (relating to Definitions), the following requirements shall apply.

77A        (1)  No person shall place, store, or hold in any stationary tank, reservoir, or other container any volatile organic compound (VOC) unless such container is capable of maintaining working pressure sufficient at all times to prevent any vapor or gas loss to the atmosphere, or is equipped with at least the control device specified in Table I(a) for VOC other than crude oil and condensate, or Table II(a) for crude oil and condensate.

NOTE: Tables I(a) and II(a) cited above are at the end of this section.

105P       (2)  For floating roof storage tanks subject to the provisions of paragraph (1) of this subsection, the following requirements shall apply.

105K            (A)  All openings in an internal or external floating roof except for automatic bleeder vents (vacuum breaker vents) and rim space vents must provide a projection below the liquid surface or be equipped with a cover, seal, or lid.  Any cover, seal, or lid must be in a closed (i.e., no visible gap) position at all times except when the device is in actual use.

105K            (B)  Automatic bleeder vents (vacuum breaker vents) are to be closed at all times except when the roof is being floated off or landed on the roof leg supports.

77A             (C)  Rim vents, if provided, are to be set to open only when the roof is being floated off the roof leg supports or at the manufacturer's recommended setting.

105K            (D)  Any roof drain that empties into the stored liquid shall be equipped with a slotted membrane fabric cover that covers at least 90% of the area of the opening.

77A             (E)  There shall be no visible holes, tears, or other openings in any seal or seal fabric.

105P            (F)  For external floating roof storage tanks, secondary seals shall be the rim-mounted type (the seal shall be continuous from the floating roof to the tank wall).  The accumulated area of gaps that exceed 1/8 inch (0.32 cm) in width between the secondary seal and tank wall shall be no greater than 1.0 in2 per foot (21 cm2/meter) of tank diameter.

88C        (3)  Vapor recovery systems used as a control device on any stationary tank, reservoir, or other container shall maintain a minimum control efficiency of 90%.

88C   (b)  For all persons in Gregg, Nueces, and Victoria Counties, the following requirements shall apply:

88C        (1)  No person shall place, store, or hold in any stationary tank, reservoir, or other container any VOC, unless such container is capable of maintaining working pressure sufficient at all times to prevent any vapor or gas loss to the atmosphere, or is equipped with at least the control device specified in Table I(a) for VOC other than crude oil and condensate or Table II(a) for crude oil and condensate.

NOTE: Tables I(a) and II(a) cited above are at the end of this section.

105K       (2)  For floating roof storage tanks subject to the provisions of paragraph (1) of this subsection, the following requirements shall apply.

105K            (A)  All openings in an internal or external floating roof, except for automatic bleeder vents (vacuum breaker vents) and rim space vents, must provide a projection below the liquid surface or be equipped with a cover, seal, or lid.  Any cover, seal, or lid must be in a closed (i.e., no visible gap) position at all times, except when the device is in actual use.

105K            (B)  Automatic bleeder vents (vacuum breaker vents) are to be closed at all times except when the roof is being floated off or landed on the roof leg supports.

88C             (C)  Rim vents, if provided, are to be set to open only when the roof is being floated off the roof leg supports or at the manufacturer's recommended setting.

105K            (D)  Any roof drain that empties into the stored liquid shall be equipped with a slotted membrane fabric cover that covers at least 90% of the area of the opening.

88C             (E)  There shall be no visible holes, tears, or other openings in any seal or seal fabric.

105P            (F)  For external floating roof storage tanks, secondary seals shall be the rim-mounted type (the seal shall be continuous from the floating roof to the tank wall).  The accumulated area of gaps that exceed 1/8 inch (0.32 centimeter) in width between the secondary seal and tank wall shall be no greater than 1.0 square inch per foot (21 square centimeters/meter) of tank diameter.

105B  (c)  For all persons in Aransas, Bexar, Calhoun, Matagorda, San Patricio, and Travis Counties, the following requirements shall apply.

77A        (1)  No person may place, store, or hold in any stationary tank, reservoir, or other container any VOC, other than crude oil or condensate, unless such container is capable of maintaining working pressure sufficient at all times to prevent any vapor or gas loss to the atmosphere, or is designed and equipped with at least the control device specified in Table I(b) for VOC other than crude oil and condensate.

NOTE: Table I(b) cited above is at the end of this section.

77A        (2)  For floating roof storage tanks subject to the provisions of paragraph (1) of this subsection, the following requirements shall apply:

105B            (A)  There shall be no visible holes, tears, or other openings in any seal or seal fabric.

77A             (B)  All tank gauging and sampling devices shall be vapor-tight except when gauging and sampling is taking place.

105B       (3)  No person in Matagorda or San Patricio Counties shall place, store, or hold crude oil or condensate in any stationary tank, reservoir, or other container, unless such tank, reservoir, or other container is a pressure tank capable of maintaining working pressures sufficient at all times to prevent vapor or gas loss to the atmosphere or is equipped with one of the following vapor-loss control devices, properly maintained and operated:

88C             (A)  an internal floating cover or external floating roof as defined in §115.10 of this title.  This control equipment shall not be permitted if the VOC has a true vapor pressure of 11.0 psia (75.8 kPa) or greater.  All tank-gauging and tank-sampling devices shall be vapor-tight, except when gauging or sampling is taking place; or

88C             (B)  a vapor recovery system as defined in §115.10 of this title.

**********************end 115.112**************************


§115.112.  Tables I(a), I(b), and II(a)

Outline:  
Table I(a).  REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR VOC OTHER THAN CRUDE OIL AND CONDENSATE
Table II(a).  REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR CRUDE OIL AND CONDENSATE
Table I(b).  REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR VOC OTHER THAN CRUDE OIL AND CONDENSATE



88C      Table I(a). 

REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR VOC OTHER THAN CRUDE OIL AND CONDENSATE 
 

*L=Liter 

77A     Table I(b). 

REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR VOC OTHER THAN CRUDE OIL AND CONDENSATE 
 

88C       Table II(a) 

REQUIRED CONTROL DEVICES FOR STORAGE TANKS FOR CRUDE OIL AND CONDENSATE 
 

***************** end Section 115.112, Tables I(a), I(b), and II(a) ***********94p**95m**


§115.113.  Alternate Control Requirements.
5-71:  As adopted by TNRCC April 26, 2002 effective May 16, 2002 (5-71).
Approved by EPA February 27, 2008 (73 FR 10383) effective March 28, 2008 (TXd89).

Alternate methods of demonstrating and documenting continuous compliance with the applicable control requirements or exemption criteria in this division may be approved by the executive director in accordance with §115.910 of this title (relating to Availability of Alternate Means of Control) if emission reductions are demonstrated to be substantially equivalent.

Adopted April 26, 2002, Effective May 16, 2002 (5-71).
***end tx 115.113***5-71***EPA-R06-OAR-2005-TX-0015***TX021***TXd89***k35***


§115.114.  Inspection Requirements. 5-56, TXc105P last, all TXc105 
As adopted by TNRCC April 30, 1997 effective May 22, 1997 (5-56).
As approved by EPA January 26, 1999 (64 FR 03841) effective March 29, 1999 at 40 CFR 52.2270/52.2299(c)(105).  See the “Chapter 115 SIP Map” document above for the meaning of the left-justified codes before each paragraph.

105P  (a)  For all persons in the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and Houston/Galveston areas, the following inspection requirements shall apply.

105P       (1)  For internal floating roof storage tanks, the internal floating roof and the primary seal or the secondary seal (if one is in service) shall be visually inspected through a fixed roof inspection hatch at least once every 12 months.  If the internal floating roof is not resting on the surface of the volatile organic compounds (VOC) inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the internal floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank in accordance with §§115.541-115.547 of this title (relating to Degassing or Cleaning of Stationary, Marine, and Transport Vessels).  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105P       (2)  For external floating roof storage tanks, the secondary seal gap shall be physically measured at least once every 12 months to insure compliance with §115.112(a)(2)(F) of this title (relating to Control Requirements).  If the secondary seal gap exceeds the limitations specified by §115.112(a)(2)(F) of this title, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank in accordance with §§115.541-115.547 of this title.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105K       (3)  If the tank is equipped with a mechanical shoe or liquid-mounted primary seal, compliance with §115.112(a)(2)(F) of this title can be determined by visual inspection.

105P       (4)  For external floating roof storage tanks, the secondary seal shall be visually inspected at least once every six months to ensure compliance with §115.112(a)(2)(E)-(F) of this title. If the external floating roof is not resting on the surface of the VOC inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the external floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank in accordance with §§115.541-115.547 of this title.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105P  (b)  For all persons in Gregg, Nueces, and Victoria Counties, the following inspection requirements shall apply.

105P       (1)  If during an inspection of an internal floating roof storage tank, the internal floating roof is not resting on the surface of the VOC inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the internal floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105P       (2)  For external floating roof storage tanks, the secondary seal gap shall be physically measured at least once every 12 months to insure compliance with §115.112(b)(2)(F) of this title.  If the secondary seal gap exceeds the limitations specified by §115.112(b)(2)(F) of this title, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105K       (3) If the tank is equipped with a mechanical shoe or liquid-mounted primary seal, compliance with §115.112(b)(2)(F) of this title can be determined by visual inspection.

105P       (4)  For external floating roof storage tanks, the secondary seal shall be visually inspected at least once every 12 months to insure compliance with §115.112(b)(2)(E)-(F) of this title.  If the external floating roof is not resting on the surface of the VOC inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the external floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105P  (c)  For all persons in Aransas, Bexar, Calhoun, Matagorda, San Patricio, and Travis Counties, the following inspection requirements shall apply.

105P       (1)  If during an inspection of an internal floating roof storage tank, the internal floating roof is not resting on the surface of the VOC inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the internal floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

105P       (2)  If during an inspection of an external floating roof storage tank, the external floating roof is not resting on the surface of the VOC inside the storage tank and is not resting on the leg supports; or liquid has accumulated on the external floating roof; or the seal is detached; or there are holes or tears in the seal fabric; or there are visible gaps between the seal and the wall of the storage tank, within 60 days of the inspection the owner or operator shall repair the items or shall empty and degas the storage tank.  If a failure cannot be repaired within 60 days and if the storage tank cannot be emptied within 60 days, the owner or operator may submit written requests for up to two extensions of up to 30 additional days each to the appropriate regional office.  The owner or operator shall submit a copy to any local air pollution control program with jurisdiction.  Each request for an extension shall include a statement that alternate storage capacity is unavailable and a schedule that will assure that the repairs will be completed as soon as possible.

**********************end 115.114**************************


§115.115.  Approved Test Methods 5-56, TXc105P last ??? 
As adopted by TNRCC April 30, 1997 effective May 22, 1997 (5-56).
As approved by EPA January 26, 1999 (64 FR 03841) effective March 29, 1999 at 40 CFR 52.2270/52.2299(c)(105).  See the “Chapter 115 SIP Map” document above for the meaning of the left-justified codes before each paragraph.

88C   (a)  For the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and Houston/Galveston areas, compliance with §115.112(a) of this title (concerning Control Requirements) shall be determined by applying the following test methods, as appropriate:

77A        (1)  Test Methods 1-4 (40 Code of Federal Regulations (CFR) 60, Appendix A) for determining flow rates, as necessary;

77A        (2)  Test Method 18 (40 CFR 60, Appendix A) for determining gaseous organic compound emissions by gas chromatography;

77A        (3)  Test Method 22 (40 CFR 60, Appendix A) for visual determination of fugitive emissions from material sources and smoke emissions from flares;

77A        (4)  Test Method 25 (40 CFR 60, Appendix A) for determining total gaseous nonmethane organic emissions as carbon;

77A        (5)  Test Methods 25A or 25B (40 CFR 60, Appendix A) for determining total gaseous organic concentrations using flame ionization or nondispersive infrared analysis;

105P       (6)  test method described in 40 CFR 60.113a(a)(1)(ii) (effective April 8, 1987) for measurement of storage tank seal gap;

105B       (7)  determination of true vapor pressure using American Society for Testing and Materials (ASTM) Test Methods D323-89, D2879, D4953, D5190, or D5191 for the measurement of Reid vapor pressure; or

88C        (8)  minor modifications to these test methods approved by the Executive Director.

88C   (b)  For Gregg, Nueces, and Victoria Counties, compliance with §115.112(b) of this title shall be determined by applying the following test methods, as appropriate:

88C        (1)  Test Methods 1-4 (40 CFR 60, Appendix A) for determining flow rates, as necessary;

88C        (2)  Test Method 18 (40 CFR 60, Appendix A) for determining gaseous organic compound emissions by gas chromatography;

88C        (3)  Test Method 22 (40 CFR 60, Appendix A) for visual determination of fugitive emissions from material sources and smoke emissions from flares;

88C        (4)  Test Method 25 (40 CFR 60, Appendix A) for determining total gaseous nonmethane organic emissions as carbon;

88C        (5)  Test Methods 25A or 25B (40 CFR 60, Appendix A) for determining total gaseous organic concentrations using flame ionization or nondispersive infrared analysis;

105P       (6)  test method described in 40 CFR 60.113a(a)(1)(ii) (effective April 8, 1987) for measurement of storage tank seal gap;

105B       (7)  determination of true vapor pressure using ASTM Test Methods D323-89, D2879, D4953, D5190, or D5191 for the measurement of Reid vapor pressure; or

88C        (8)  minor modifications to these test methods approved by the Executive Director.

**********************end 115.115**************************


§115.116.  Monitoring and Recordkeeping Requirements.
5-71:  As adopted by TNRCC April 26, 2002 effective May 16, 2002 (5-71).
Approved by EPA February 27, 2008 (73 FR 10383) effective March 28, 2008 (TXd89).

     (a)  For all persons in the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and Houston/Galveston areas, the following recordkeeping requirements shall apply.

          (1)  The owner or operator of any storage vessel with an external floating roof which is exempted from the requirement for a secondary seal as specified in §115.117(a)(1), (6), and (7) of this title (relating to Exemptions) and used to store volatile organic compounds (VOC) with a true vapor pressure greater than 1.0 psia (6.9 kPa) at storage conditions shall maintain records of the type of VOC stored and the average monthly true vapor pressure of the stored liquid.

          (2)  The results of inspections required by §115.114(a) of this title (relating to Inspection Requirements) shall be recorded.  For secondary seal gaps that are required to be physically measured during inspection, these records shall include a calculation of emissions for all secondary seal gaps that exceed 1/8 inch (0.32 cm) where the accumulated area of such gaps is greater than 1.0 square inch per foot (21 square centimeters per meter) of tank diameter.  These calculated emissions (Tr) shall be reported in the annual emissions inventory submittal required by §101.10 of this title (relating to Emissions Inventory Requirements).  The emissions shall be calculated using the following methodology:

               (A)  Allowable Seal Gap (greater than 1/8 inch wide):  As (square inches) = 1 square inch per tank diameter foot x tank diameter.

               (B)  Measured Seal Gap:  Ms (square inches).

               (C)  Reportable Seal Gap Area:  Rs = Ms - As in square inches.

               (D)  Reportable Seal Gap/Allowable Ratio:  RRs = Rs divided by As.

               (E)  Tank Circumference:  Tc (feet).

               (F)  Reportable Seal Gap Length (total linear feet of seal gap greater than 1/8 inch gap width):  Rl.

               (G)  Reportable Seal Gap Length/Tank Circumference Ratio:  RRl = Rl/Tc.

               (H)  Tank Emissions (with good single seal):  Ts = AP-42 Calculation (convert to pounds/day).

               (I)  Tank Emissions (with two good seals):  Tss = AP-42 Calculation (convert to pounds/day).  Note:  Use maximum local monthly average ambient temperature as reported by the National Weather Service to calculate true vapor pressure.

               (J)  Reportable emissions:  Tr (pounds) = (Ts - Tss) x RRs x RRl x 90 days.  Note:  In no case should Tr be greater than (Ts - Tss).

          (3)  Affected persons shall install and maintain monitors to continuously measure and record operational parameters of any of the following emission control devices installed to meet applicable control requirements.  Such records must be sufficient to demonstrate proper functioning of those devices to design specifications, including:

               (A)  the exhaust gas temperature immediately downstream of a direct-flame incinerator;

               (B)  the inlet and outlet gas temperature of a chiller or catalytic incinerator; and

               (C)  the exhaust gas VOC concentration of any carbon adsorption system, as defined in §115.10 of this title (relating to Definitions), to determine if breakthrough has occurred.

          (4)  The results of any testing conducted in accordance with the provisions specified in §115.115(a) of this title (relating to Testing Requirements) shall be maintained at an affected facility.

          (5)  All records shall be maintained for two years and be made available for review upon request by authorized representatives of the executive director, EPA, or local air pollution control agencies.

     (b)  For all persons in Gregg, Nueces, and Victoria Counties, the following recordkeeping requirements shall apply.

          (1)  The owner or operator of any storage vessel with an external floating roof which is exempted from the requirement for a secondary seal as specified in §115.117(b)(1), (6), and (7) of this title and used to store VOC with a true vapor pressure greater than 1.0 psia (6.9 kPa) at storage conditions shall maintain records of the type of VOC stored and the average monthly true vapor pressure of the stored liquid.

          (2)  The results of inspections required by §115.114(b) of this title shall be recorded.

          (3)  In Victoria County, affected persons shall install and maintain monitors to continuously measure and record operational parameters of any of the following emission control devices installed to meet applicable control requirements.  Such records must be sufficient to demonstrate proper functioning of those devices to design specifications, including:

               (A)  the exhaust gas temperature immediately downstream of a direct-flame incinerator;

               (B)  the inlet and outlet gas temperature of a chiller or catalytic incinerator; and

               (C)  the exhaust gas VOC concentration of any carbon adsorption system, as defined in §115.10 of this title, to determine if breakthrough has occurred.

          (4)  The results of any testing conducted in accordance with the provisions specified in §115.115(b) of this title shall be maintained at an affected facility.

          (5)  All records shall be maintained for two years and be made available for review upon request by authorized representatives of the executive director, EPA, or local air pollution control agencies.

Adopted April 26, 2002, Effective May 16, 2002 (5-71).
***end tx 115.116***5-71***EPA-R06-OAR-2005-TX-0015***TX021***TXd89***k35***


§115.117.  Exemptions.
5-71:  As adopted by TNRCC April 26, 2002 effective May 16, 2002 (5-71).
Approved by EPA February 27, 2008 (73 FR 10383) effective March 28, 2008 (TXd89).

     (a)  For all persons in the Beaumont/Port Arthur, Dallas/Fort Worth, El Paso, and Houston/Galveston areas, the following exemptions apply.

          (1)  Except as provided in §115.116 of this title (relating to Monitoring and Recordkeeping Requirements), any volatile organic compound (VOC) with a true vapor pressure less than 1.5 pounds per square inch absolute (psia) (10.3 kPa) at storage conditions is exempt from the requirements of this division (relating to the Storage of Volatile Organic Compounds). 

          (2)  Crude oil and condensate stored in tanks with a nominal capacity less than 210,000 gallons (794,850 liters), prior to custody transfer, is exempt from the requirements of this division.

          (3)  Storage containers which have a capacity of less than 25,000 gallons (94,625 liters) located at motor vehicle fuel dispensing facilities are exempt from the requirements of this division.

          (4)  A welded tank with a mechanical shoe primary seal which has a secondary seal from the top of the shoe seal to the tank wall (a shoe-mounted secondary seal) is exempt from the requirement for retrofitting with a rim-mounted secondary seal if the shoe-mounted secondary seal was installed or scheduled for installation before August 22, 1980.

          (5)  External floating roof tanks storing waxy, high pour point crude oils are exempt from any secondary seal requirements of §115.112(a) of this title (relating to Control Requirements).

          (6)  Any welded tank storing VOC having a true vapor pressure less than 4.0 psia (27.6 kPa) is exempt from any external floating roof secondary seal requirement if any of the following types of primary seals have been installed before August 22, 1980:

               (A)  a mechanical shoe seal;

               (B)  a liquid-mounted foam seal; or

               (C)  a liquid-mounted liquid filled type seal.

          (7)  Any welded tank storing crude oil having a true vapor pressure equal to or greater than 4.0 psia (27.6 kPa) and less than 6.0 psia (41.4 kPa) at storage conditions is exempt from any external floating roof secondary seal requirement if any of the following types of primary seals have been installed before December 10, 1982:

               (A)  a mechanical shoe seal;

               (B)  a liquid-mounted foam seal; or

               (C)  a liquid-mounted liquid filled type seal.

          (8)  Storage containers which have a capacity of no more than 1,000 gallons are exempt from the requirements of this division.

     (b)  For all persons in Gregg, Nueces, and Victoria Counties, the following exemptions apply.

          (1)  Except as provided in §115.116 of this title, any VOC with a true vapor pressure less than 1.5 psia (10.3 kPa) at storage conditions is exempt from the requirements of this division.

          (2)  Crude oil and condensate stored in tanks with a nominal capacity less than 210,000 gallons (794,850 liters), prior to custody transfer, is exempt from the requirements of this division.

          (3)  Storage containers which have a capacity of less than 25,000 gallons (94,625 liters) located at motor vehicle fuel dispensing facilities are exempt from the requirements of this division.

          (4)  A welded tank with a mechanical shoe primary seal which has a secondary seal from the top of the shoe seal to the tank wall (a shoe-mounted secondary seal) is exempt from the requirement for retrofitting with a rim-mounted secondary seal if the shoe-mounted secondary seal was installed or scheduled for installation before August 22, 1980.

          (5)  External floating roof tanks storing waxy, high pour point crude oils are exempt from any secondary seal requirements of §115.112(b) of this title.

          (6)  Any welded tank storing VOC having a true vapor pressure less than 4.0 psia (27.6 kPa) is exempt from any external secondary seal requirement if any of the following types of primary seals have been installed before August 22, 1980:

               (A)  a mechanical shoe seal;

               (B)  a liquid-mounted foam seal; or

               (C)  a liquid-mounted liquid filled type seal.

          (7)  Any welded tank storing crude oil having a true vapor pressure equal to or greater than 4.0 psia (27.6 kPa) and less than 6.0 psia (41.4 kPa) at storage conditions is exempt from any external secondary seal requirement if any of the following types of primary seals have been installed before December 10, 1982:

               (A)  a mechanical shoe seal;

               (B)  a liquid-mounted foam seal; or

               (C)  a liquid-mounted liquid filled type seal.

          (8)  Storage containers which have a capacity of no more than 1,000 gallons are exempt from the requirements of this division.

     (c)  For all persons in Aransas, Bexar, Calhoun, Matagorda, San Patricio, and Travis Counties, the following exemptions apply.

          (1)  Any VOC with a true vapor pressure less than 1.5 psia (10.3 kPa) at storage conditions is exempt from the requirements of this division.

          (2)  Slotted sampling and gauge pipes installed in any floating roof storage tank are exempt from the provisions of §115.112(c) of this title.

          (3)  Storage tanks with nominal capacities between 1,000 gallons (3,785 liters) and 25,000 gallons (94,625 liters) are exempt from the requirements of §115.112(c)(1) of this title if construction began before May 12, 1973.

          (4)  Storage tanks with a nominal capacity of 420,000 gallons (1,589,700 liters) or less are exempt from the requirements of §115.112(c)(3) of this title.

          (5)  Storage containers which have a capacity of no more than 1,000 gallons are exempt from the requirements of this division.

Adopted April 26, 2002, Effective May 16, 2002 (5-71).
***end tx 115.117***5-71***EPA-R06-OAR-2005-TX-0015***TX021***TXd89***k35***


5B1 §115.119. Counties and Compliance Schedules.
5-84:  As adopted by TCEQ November 15, 2006 effective December 7, 2006 (5-84).
Approved by EPA July 17, 2008 (73 FR 40972), effective September 15, 2008  (TXd90).

     (a) The owner or operator of each stationary tank, reservoir, or other container in which any volatile organic compound (VOC) is placed, stored, or held in Brazoria, Chambers, Collin, Dallas, Denton, El Paso, Fort Bend, Galveston, Hardin, Harris, Jefferson, Liberty, Montgomery, Orange, Tarrant, and Waller Counties shall continue to comply with this division (relating to Storage of Volatile Organic Compounds) as required by §115.930 of this title (relating to Compliance Dates).

     (b) The owner or operator of each stationary tank, reservoir, or other container in which any VOC is placed, stored, or held in Ellis, Johnson, Kaufman, Parker, and Rockwall Counties shall comply with this division as soon as practicable, but no later than March 1, 2009.

Adopted November 15, 2006, Effective December 7, 2006 (5-84).
***end tx 115.119***5-84***EPA-R06-OAR-2006-1029***TX055***TXd90***m6s***
**************end texas chapter 115 subchapter b division 1***TXd90***m6s***