fugprog.txt

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General provisions:  28M
5/94

Piping, Valves, Flanges, Pumps and Compressors in Volatile
Organic Compound (VOC) Service

A.  These provisions shall not apply (1) where the VOC has an
    aggregate partial pressure or vapor pressure of less than
    0.5 psia at 100F or at maximum process operating
    temperature if less than 100F, or (2) to piping and
    valves two inches nominal size and smaller,or (3) where
    the operating pressure is at least 5 kilopascals (0.725
    psi) below ambient pressure.  Equipment excluded from this
    provision shall be identified in a list to be made
    available upon request.

B.  Construction of new and reworked piping, valves and pump
    and compressor systems shall conform to applicable ANSI,
    API, ASME, or equivalent codes.

C.  New and reworked underground process pipelines shall
    contain no buried valves such that fugitive emission
    monitoring is rendered impractical.

D.  To the extent that good engineering practice will permit,
    new and reworked valves and piping connections shall be so
    located to be reasonably accessible for leak-checking
    during plant operation.  Non-accessible valves, as defined
    in Regulation V, shall be identified in a list to be made
    available upon request.

E.  New and reworked piping connections shall be welded or
    flanged.  Screwed connections are permissible only on
    piping smaller than two-inch diameter.  No later than the
    next scheduled quarterly monitoring period after initial
    installation or replacement, all new or reworked
    connections shall be gas-tested or hydraulically-tested at
    no less than normal operating pressure and adjustments
    made as necessary to obtain leak-free performance.  
    Flanges shall be inspected by visual, audible and/or
    olfactory means at least weekly by operating personnel
    walk-through.  

    Each open-ended valve or line shall be equipped with a
    cap, blind flange, plug, or a second valve.  Except during
    sampling, the second valve shall be closed.

F.  Accessible valves shall be monitored by leak-checking for
    fugitive emissions at least quarterly using an approved
    gas analyzer.  Sealless/leakless valves (including but not
    limited to welded bonnet bellows and diaphragm valves) and
    relief valves equipped with a rupture disc upstream or
    venting to a control device are not required to be
    monitored.  For valves equipped with rupture discs, a
    pressure gauge shall be installed between the relief valve
    and rupture disc to monitor disc integrity.  All leaking
    discs shall be replaced at the earliest opportunity but no
    later than the next process shutdown.  An approved gas
    analyzer shall conform to requirements listed in Title 40
    Code of Federal Regulations Part 60.485(a) - (b) (40CFR
    60.485[a][b]).

G.  Except as may be provided for in the special provisions of
    this permit, all pump and compressor seals shall be
    monitored with an approved gas analyzer at least quarterly
    or be equipped with a shaft sealing system that prevents
    or detects emissions of VOC from the seal.  Seal systems 
    designed and operated to prevent emissions or seals
    equipped with an automatic seal failure detection and
    alarm system need not be monitored.  Seal systems that
    prevent emissions may include (but are not limited to)
    dual pump seals with barrier fluid at higher pressure than
    process pressure or seals degassing to vent control
    systems kept in good working order.  

    Submerged pumps or sealless pumps (including but not
    limited to diaphragm, canned, or magnetic driven pumps)
    may be used to satisfy the requirements of this provision
    and need not be monitored.

H.  Damaged or leaking valves, flanges, compressor seals, and
    pump seals found to be emitting VOC in excess of 10,000
    ppmv or found by visual inspection to be leaking (e.g.,
    dripping liquids) shall be tagged and replaced or
    repaired.  Every reasonable effort shall be made to repair
    a leaking component as specified in this paragraph within
    15 days after the leak is found.  If the repair of a
    component would require a unit shutdown, the repair may be
    delayed until the next scheduled shutdown.  All leaking
    components which cannot be repaired until a scheduled
    shutdown shall be identified for such repair by tagging.
    The Executive Director, at his discretion, may require
    early unit shutdown or other appropriate action based on
    the number and severity of tagged leaks awaiting shutdown.

I.  The results of the required fugitive monitoring and
    maintenance program shall be made available to the
    Executive Director or his designated representative upon
    request.  Records shall indicate appropriate dates, test
    methods, instrument readings, repair results, and
    corrective actions taken for all components.  Records of
    flange inspections are not required unless a leak is
    detected.

J.  Fugitive emission monitoring required by an applicable New
    Source Performance Standard (NSPS), 40 CFR 60, or an
    applicable National Emission Standard for Hazardous Air
    Pollutants (NESHAPS) 40 CFR 61 may be used in lieu of
    Items F through I of this provision.  Compliance with the
    requirements of this provision does not assure compliance
    with requirements of NSPS, or NESHAPS and does not
    constitute approval of alternative standards for these
    regulations.
General Provisions:  28RCT
3/98

Piping, Valves, Connectors, Pumps, and Compressors in Volatile Organic Compounds (VOC)
Service - 28RCT

Except as may be provided for in the special conditions of this permit, the following
requirements apply to the above-referenced equipment.

A.   These conditions shall not apply (1) where the VOC has an aggregate partial pressure or
     vapor pressure equal to or less than 0.044 psia at 68F or (2) * REMOVE
     IF SUBJECT TO REG. V*  to piping and valves two inches nominal size and smaller
     or (3) operating pressure is at least 5 kilopascals (0.725 psi) below ambient pressure. 
     Equipment excluded from this condition shall be identified in a list to be made available
     upon request.

B.   Construction of new and reworked piping, valves, pump systems, and compressor systems
     shall conform to applicable ANSI, API, ASME, or equivalent codes.

C.   New and reworked underground process pipelines shall contain no buried valves such that
     fugitive emission monitoring is rendered impractical.

D.   To the extent that good engineering practice will permit, new and reworked valves and
     piping connections shall be so located to be reasonably accessible for leak-checking during
     plant operation.  Non-accessible valves, as defined by TNRCC 30 TAC Chapter 115
     (Regulation V), shall be identified in a list to be made available upon request.

E.   New and reworked piping connections shall be welded or flanged.  Screwed connections
     are permissible only on piping smaller than two-inch diameter.  No later than the next
     scheduled quarterly monitoring after initial installation or replacement, all new or
     reworked connections shall be gas-tested or hydraulically-tested at no less than normal
     operating pressure and adjustments made as necessary to obtain leak-free performance. 
     Connectors shall be inspected by visual, audible, and/or olfactory means at least weekly
     by operating personnel walk-through.

  Each open-ended valve or line shall be equipped with a cap, blind flange, plug, or a
  second valve.  Except during sampling, the second valve shall be closed.

F.   Accessible valves shall be monitored by leak-checking for fugitive emissions at least
     quarterly using an approved gas analyzer.  Sealless/leakless valves (including, but not
     limited to, welded bonnet bellows and diaphragm valves) and relief valves equipped with a
     rupture disc upstream or venting to a control device are not required to be monitored.  For
     valves equipped with rupture discs, a pressure-sensing device shall be installed between
     the relief valve and rupture disc to monitor disc integrity.  All leaking discs shall be
     replaced at the earliest opportunity but no later than the next process shutdown.

  An approved gas analyzer shall conform to requirements listed in Title 40 Code of Federal
  Regulations Part 60.485(a) - (b).

  Replaced components shall be re-monitored within 15 days of being placed back into VOC
  service.

G.   Except as may be provided for in the special conditions of this permit, all pump and
     compressor seals shall be monitored with an approved gas analyzer at least quarterly or be
     equipped with a shaft sealing system that prevents or detects emissions of VOC from the
     seal.  Seal systems designed and operated to prevent emissions or seals equipped with an
     automatic seal failure detection and alarm system need not be monitored.   These seal
     systems may include (but are not limited to) dual pump seals with barrier fluid at higher
     pressure than process pressure, seals degassing to vent control systems kept in good
     working order, or seals equipped with an automatic seal failure detection and alarm
     system.  Submerged pumps or sealless pumps (including, but not limited to, diaphragm,
     canned, or magnetic-driven pumps) may be used to satisfy the requirements of this
     condition and need not be monitored.

H.   Damaged or leaking valves or connectors found to be emitting VOC in excess of
     500 ppmv or found by visual inspection to be leaking (e.g., dripping process fluids) shall
     be tagged and replaced or repaired.  Damaged or leaking pump and compressor seals
     found to be emitting VOC in excess of 10,000 ppmv or found by visual inspection to be
     leaking (e.g., dripping process fluids) shall be tagged and replaced or repaired. 

I.   Every reasonable effort shall be made to repair a leaking component, as specified in this
     paragraph, within 15 days after the leak is found.  If the repair of a component would
     require a unit shutdown, the repair may be delayed until the next scheduled shutdown.  All
     leaking components which cannot be repaired until a scheduled shutdown shall be
     identified for such repair by tagging.  The TNRCC Executive Director, at his discretion,
     may require early unit shutdown or other appropriate action based on the number and
     severity of tagged leaks awaiting shutdown.

J.   The results of the required instrument fugitive monitoring and maintenance program shall
     be made available to the TNRCC Executive Director or his designated representative upon
     request.  Records shall indicate appropriate dates, test methods, instrument readings,
     repair results, and corrective actions taken for all components.  Records of physical
     inspections are not required unless a leak is detected.

K.   Fugitive emission monitoring required by 30 TAC Chapter 115 may be used in lieu of
     Items F through I of this condition.

  Compliance with the requirements of this condition does not assure compliance with
  requirements of an applicable New Source Performance Standard or an applicable National
  Emission Standard for Hazardous Air Pollutants and does not constitute approval of
    alternative standards for these regulations.General Provisions:  28VHP  3/98

Piping, Valves, Connectors, Pumps, and Compressors in Volatile Organic Compounds (VOC)
Service - 28VHP

Except as may be provided for in the special conditions of this permit, the following
requirements apply to the above-referenced equipment.

A.   These conditions shall not apply (1) where the VOC has an aggregate partial pressure or
     vapor pressure of less than 0.044 psia at 68F or (2) * REMOVE IF
     SUBJECT TO REG. V*  to piping and valves two inches nominal size and smaller or
     (3) operating pressure is at least 5 kilopascals (0.725 psi) below ambient pressure. 
     Equipment excluded from this condition shall be identified in a list to be made available
     upon request.

B.   Construction of new and reworked piping, valves, pump systems, and compressor systems
     shall conform to applicable ANSI, API, ASME, or equivalent codes.

C.   New and reworked underground process pipelines shall contain no buried valves such that
     fugitive emission monitoring is rendered impractical.

D.   To the extent that good engineering practice will permit, new and reworked valves and
     piping connections shall be so located to be reasonably accessible for leak-checking during
     plant operation.  Non-accessible valves, as defined by TNRCC 30 TAC Chapter 115
     (Regulation V), shall be identified in a list to be made available upon request.

E.   New and reworked piping connections shall be welded or flanged.  Screwed connections
     are permissible only on piping smaller than two-inch diameter.  No later than the next
     scheduled quarterly monitoring after initial installation or replacement, all new or
     reworked connections shall be gas-tested or hydraulically-tested at no less than normal
     operating pressure and adjustments made as necessary to obtain leak-free performance. 
     Connectors shall be inspected by visual, audible, and/or olfactory means at least weekly
     by operating personnel walk-through.

  Each open-ended valve or line shall be equipped with a cap, blind flange, plug, or a
  second valve.  Except during sampling, the second valve shall be closed.

F.   Accessible valves shall be monitored by leak-checking for fugitive emissions at least
     quarterly using an approved gas analyzer.  Sealless/leakless valves (including, but not
     limited to, welded bonnet bellows and diaphragm valves) and relief valves equipped with a
     rupture disc upstream or venting to a control device are not required to be monitored.  For
     valves equipped with rupture discs, a pressure-sensing device shall be installed between
     the relief valve and rupture disc to monitor disc integrity.  All leaking discs shall be
     replaced at the earliest opportunity but no later than the next process shutdown.

  An approved gas analyzer shall conform to requirements listed in Title 40 Code of Federal
  Regulations Part 60.485(a) - (b).  Replaced components shall be re-monitored within 15 days of
  being placed back into VOC service.

G.   Except as may be provided for in the special conditions of this permit, all pump and
     compressor seals shall be monitored with an approved gas analyzer at least quarterly or be
     equipped with a shaft sealing system that prevents or detects emissions of VOC from the
     seal.  Seal systems designed and operated to prevent emissions or seals equipped with an
     automatic seal failure detection and alarm system need not be monitored.   These seal
     systems may include (but are not limited to) dual pump seals with barrier fluid at higher
     pressure than process pressure, seals degassing to vent control systems kept in good
     working order, or seals equipped with an automatic seal failure detection and alarm
     system.  Submerged pumps or sealless pumps (including, but not limited to, diaphragm,
     canned, or magnetic-driven pumps) may be used to satisfy the requirements of this
     condition and need not be monitored.

H.   Damaged or leaking valves or connectors found to be emitting VOC in excess of
     500 ppmv or found by visual inspection to be leaking (e.g., dripping process fluids) shall
     be tagged and replaced or repaired.  Damaged or leaking pump and compressor seals
     found to be emitting VOC in excess of 2,000 ppmv or found by visual inspection to be
     leaking (e.g., dripping process fluids) shall be tagged and replaced or repaired. 

I.   Every reasonable effort shall be made to repair a leaking component, as specified in this
     paragraph, within 15 days after the leak is found.  If the repair of a component would
     require a unit shutdown, the repair may be delayed until the next scheduled shutdown.  All
     leaking components which cannot be repaired until a scheduled shutdown shall be
     identified for such repair by tagging.  The TNRCC Executive Director, at his discretion,
     may require early unit shutdown or other appropriate action based on the number and
     severity of tagged leaks awaiting shutdown.

J.   The results of the required fugitive instrument monitoring and maintenance program shall
     be made available to the TNRCC Executive Director or his designated representative upon
     request.  Records shall indicate appropriate dates, test methods, instrument readings,
     repair results, and corrective actions taken for all components.  Records of physical
     inspections are not required unless a leak is detected.

K.   Alternative monitoring frequency schedules of 30 TAC Sections 115.352-115.359
     (Regulation V) or National Emission Standards for Organic Hazardous Air Pollutants,
     40 CFR 63, Subpart H, may be used in lieu of Items F through G of this condition.

  Compliance with the requirements of this condition does not assure compliance with
  requirements of 30 TAC Chapter 115, an applicable New Source Performance Standard,
  or an applicable National Emission Standard for Hazardous Air Pollutants and does not
  constitute approval of alternative standards for these regulations.
General Provisions:  28MID
3/98

Piping, Valves, Connectors, Pumps, and Compressors in insert compound~
Service - Intensive Directed Maintenance - 28MID

Except as may be provided for in the special conditions of this permit, the following
requirements apply to the above-referenced equipment.

A. These conditions shall not apply (1) where the concentration in the stream is less than  percent
by weight or (2) where the volatile organic compounds (VOC)
   has an aggregate partial pressure or vapor pressure of less than 0.044 psia at 68F or (3) *
REMOVE IF SUBJECT TO REG. V.* to piping and valves two
   inches nominal size and smaller or (4) operating pressure is at least 5 kilopascals (0.725
   psi) below ambient pressure.  Equipment excluded from this condition shall be identified
   in a list to be made available upon request.

B. Construction of new and reworked piping, valves, pump systems, and compressor
   systems shall conform to applicable ANSI, API, ASME, or equivalent codes.

C. New and reworked underground process pipelines shall contain no buried valves such
   that fugitive emission monitoring is rendered impractical.

D. To the extent that good engineering practice will permit, new and reworked valves and
   piping connections shall be so located to be reasonably accessible for leak-checking
   during plant operation.  Non-accessible valves, as defined by TNRCC 30 TAC Chapter
   115 (Regulation V), shall be identified in a list to be made available upon request.

E. New and reworked piping connections shall be welded or flanged.  Screwed connections
   are permissible only on piping smaller than two-inch diameter.  No later than the next
   scheduled quarterly monitoring after initial installation or replacement, all new or
   reworked connections shall be gas-tested or hydraulically-tested at no less than normal
   operating pressure and adjustments made as necessary to obtain leak-free performance. 
   Connectors shall be inspected by visual, audible, and/or olfactory means at least weekly
   by operating personnel walk-through.

   Each open-ended valve or line shall be equipped with a cap, blind flange, plug, or a
   second valve.  Except during sampling, the second valve shall be closed.

F. Accessible valves shall be monitored by leak-checking for fugitive emissions at least
   quarterly using an approved gas analyzer with a directed maintenance program. 
   Sealless/leakless valves (including, but not limited to, welded bonnet bellows and
   diaphragm valves) and relief valves equipped with a rupture disc upstream or venting to a
   control device are not required to be monitored.  For valves equipped with rupture discs,
   a pressure-sensing device shall be installed between the relief valve and rupture disc to
   monitor disc integrity.  All leaking discs shall be replaced at the earliest opportunity but
   no later than the next process shutdown.

   An approved gas analyzer shall conform to requirements listed in Title 40 Code of
   Federal Regulations Part 60.485(a) - (b).

   A directed maintenance program shall consist of the repair and maintenance of
   components assisted simultaneously by the use of an approved gas analyzer such that a
   minimum concentration of leaking VOC is obtained for each component being
   maintained.  Replaced components shall be re-monitored within 15 days of being placed
   back into VOC service.

G. All new and replacement pumps and compressors shall be equipped with a shaft sealing
   system that prevents or detects emissions of VOC from the seal.  These seal systems need
   not be monitored and may include (but are not limited to) dual pump seals with barrier
   fluid at higher pressure than process pressure, seals degassing to vent control systems
   kept in good working order, or seals equipped with an automatic seal failure detection
   and alarm system.  Submerged pumps or sealless pumps (including, but not limited to,
   diaphragm, canned, or magnetic-driven pumps) may be used to satisfy the requirements
   of this condition and need not be monitored.

   All other pump and compressor seals emitting VOC shall be monitored with an approved
   gas analyzer at least quarterly.

H. Damaged or leaking valves, connectors, compressor seals, and pump seals found to be
   emitting VOC in excess of 500 ppmv or found by visual inspection to be leaking
   (e.g., dripping process fluids) shall be tagged and replaced or repaired.  Every reasonable
   effort shall be made to repair a leaking component, as specified in this paragraph, within
   15 days after the leak is found.  If the repair of a component would require a unit
   shutdown, the repair may be delayed until the next scheduled shutdown.  All leaking
   components which cannot be repaired until a scheduled shutdown shall be identified for
   such repair by tagging.  The TNRCC Executive Director, at his discretion, may require
   early unit shutdown or other appropriate action based on the number and severity of
   tagged leaks awaiting shutdown.

I. In lieu of the monitoring frequency specified in paragraph F, valves in gas and light
   liquid service may be monitored on a semiannual basis if the percent of valves leaking for
   two consecutive quarterly monitoring periods is less than 0.5 percent.

   Valves in gas and light liquid service may be monitored on an annual basis if the percent
   of valves leaking for two consecutive semiannual monitoring periods is less than
   0.5 percent.

   If the percent of valves leaking for any semiannual or annual monitoring period is
   0.5 percent or greater, the facility shall revert to quarterly monitoring until the facility
   again qualifies for the alternative monitoring schedules previously outlined in this
   paragraph.

J. The percent of valves leaking used in paragraph I shall be determined using the following
   formula:

       (Vl + Vs ) x 100/Vt = Vp

   Where:
   
   Vl = the number of valves found leaking by the end of the monitoring period, either by
        Method 21 or sight, sound, and smell.

   Vs = the number of valves for which repair has been delayed and are listed on the
        facility shutdown log.

   Vt = the total number of valves in the facility subject to the monitoring requirements,
        as of the last day of the monitoring period, not including nonaccessible and
        unsafe-to-monitor valves.

   Vp = the percentage of leaking valves for the monitoring period.

K. The results of the required fugitive instrument monitoring and maintenance program shall
   be made available to the TNRCC Executive Director or his designated representative
   upon request.  Records shall indicate appropriate dates, test methods, instrument
   readings, repair results, and corrective actions taken.  Records of physical inspections are
   not required unless a leak is detected.

L. Compliance with the requirements of this condition does not assure compliance with
   requirements of 30 TAC Chapter 115, an applicable New Source Performance Standard,
   or an applicable National Emission Standard for Hazardous Air Pollutants and does not
   constitute approval of alternative standards for these regulations.
SPECIAL CONDITIONS                                         28LAER
3/98

Piping, Valves, Connectors, Pumps, Agitators, and Compressors in Volatile Organic
Compounds (VOC) Service - Intensive Directed Maintenance - 28LAER

Except as may be provided for in the special conditions of this permit, the following
requirements apply to the above-referenced equipment.

A. With the exception of paragraph N, these conditions shall not apply (1) where the VOC
   has an aggregate partial pressure or vapor pressure of less than 0.044 psia at 68F or
   (2) operating pressure is at least 5 kilopascals (0.725 psi) below ambient pressure. 
   Equipment excluded from this condition shall be identified in a list to be made available
   upon request.

B. Construction of new and reworked piping, valves, pump systems, and compressor
   systems shall conform to applicable ANSI, API, ASME, or equivalent codes.

C. New and reworked underground process pipelines shall contain no buried valves such
   that fugitive emission monitoring is rendered impractical.

D. To the extent that good engineering practice will permit, new and reworked valves and
   piping connections shall be so located to be reasonably accessible for leak-checking
   during plant operation.  Non-accessible valves, as defined by TNRCC 30 TAC Chapter
   115 (Regulation V), shall be identified in a list to be made available upon request.

E. New and reworked piping connections shall be welded or flanged.  Screwed connections
   are permissible only on piping smaller than two-inch diameter.  No later than the next
   scheduled quarterly monitoring after initial installation or replacement, all new or
   reworked connections shall be gas-tested or hydraulically-tested at no less than normal
   operating pressure and adjustments made as necessary to obtain leak-free performance. 
   Connectors shall be inspected by visual, audible, and/or olfactory means at least weekly
   by operating personnel walk-through.  In addition, all connectors shall be monitored by
   leak-checking for fugitive emissions at least annually using an approved gas analyzer with
   a directed maintenance program.  

   Each open-ended valve or line shall be equipped with a cap, blind flange, plug, or a
   second valve.  Except during sampling, the second valve shall be closed.

F. Accessible valves shall be monitored by leak-checking for fugitive emissions at least
   quarterly using an approved gas analyzer with a directed maintenance program. 
   Non-accessible valves shall be monitored by leak-checking for fugitive emissions at least
   annually using an approved gas analyzer with a directed maintenance program. 
   Sealless/leakless valves (including, but not limited to, welded bonnet bellows and
   diaphragm valves) and relief valves equipped with a rupture disc upstream or venting to a
   control device are not required to be monitored.  For valves equipped with rupture discs,
   a pressure-sensing device shall be installed between the relief valve and rupture disc to
   monitor disc integrity.  All leaking discs shall be replaced at the earliest opportunity but
   no later than the next process shutdown.

   An approved gas analyzer shall conform to requirements listed in Title 40 Code of
   Federal Regulations Part 60.485(a) - (b).

   A directed maintenance program shall consist of the repair and maintenance of
   components assisted simultaneously by the use of an approved gas analyzer such that a
   minimum concentration of leaking VOC is obtained for each component being
   maintained.  Replaced components shall be re-monitored within 15 days of being placed
   back into VOC service.

G. All new and replacement pumps and compressors shall be equipped with a shaft sealing
   system that prevents or detects emissions of VOC from the seal.  These seal systems need
   not be monitored and may include (but are not limited to) dual pump seals with barrier
   fluid at higher pressure than process pressure, seals degassing to vent control systems
   kept in good working order, or seals equipped with an automatic seal failure detection
   and alarm system.  Submerged pumps or sealless pumps (including, but not limited to,
   diaphragm, canned, or magnetic-driven pumps) may be used to satisfy the requirements
   of this condition and need not be monitored.

   All other pump, compressor, and agitator seals emitting VOC shall be monitored with an
   approved gas analyzer at least quarterly.

H. Damaged or leaking valves, connectors, agitator seals, compressor seals, and pump seals
   found to be emitting VOC in excess of 500 ppmv or found by visual inspection to be
   leaking (e.g., dripping process fluids) shall be tagged and replaced or repaired.  Every
   reasonable effort shall be made to repair a leaking component, as specified in this
   paragraph, within 15 days after the leak is found.  If the repair of a component would
   require a unit shutdown, the repair may be delayed until the next scheduled shutdown. 
   All leaking components which cannot be repaired until a scheduled shutdown shall be
   identified for such repair by tagging.  The TNRCC Executive Director, at his discretion,
   may require early unit shutdown or other appropriate action based on the number and
   severity of tagged leaks awaiting shutdown.

I. The results of the required fugitive instrument monitoring and maintenance program shall
   be made available to the TNRCC Executive Director or his designated representative
   upon request.  Records shall indicate appropriate dates, test methods, instrument
   readings, repair results, and corrective actions taken.  Records of weekly physical
   inspections are not required unless a leak is detected.

J. Compliance with the requirements of this condition does not assure compliance with
   requirements of 30 TAC Chapter 115, an applicable New Source Performance Standard,
   or an applicable National Emission Standard for Hazardous Air Pollutants and does not
   constitute approval of alternative standards for these regulations.


K. In lieu of the monitoring frequency specified in paragraph F, valves in gas and light
   liquid service may be monitored on a semiannual basis if the percent of valves leaking for
   two consecutive quarterly monitoring periods is less than 0.5 percent.

   Valves in gas and light liquid service may be monitored on an annual basis if the percent
   of valves leaking for two consecutive semiannual monitoring periods is less than
   0.5 percent.

   If the percent of valves leaking for any semiannual or annual monitoring period is
   0.5 percent or greater, the facility shall revert to quarterly monitoring until the facility
   again qualifies for the alternative monitoring schedules previously outlined in this
   paragraph.

L. The percent of valves leaking used in paragraph K shall be determined using the
   following formula:

       (Vl + Vs ) x 100/Vt = Vp

   Where:
    Vl = the number of valves found leaking by the end of the monitoring period, either by
        Method 21 or sight, sound, and smell.

   Vs = the number of valves for which repair has been delayed and are listed on the
        facility shutdown log.

   Vt = the total number of valves in the facility subject to the monitoring requirements,
        as of the last day of the monitoring period, not including nonaccessible and
        unsafe-to-monitor valves.

   Vp = the percentage of leaking valves for the monitoring period.

M. Alternative connector  monitoring frequency schedules  ("skip options")  of 40 Code of 
   Federal Regulations Part 63, Subpart H, National Emission Standards for Organic
   Hazardous Air Pollutants for Equipment Leaks, may be used in lieu of the annual connector
   instrument monitoring required by paragraph E of this permit condition.
  
N. Any component found to be leaking by physical inspection (i.e., sight, sound, or smell)
   shall be repaired or monitored with an approved gas analyzer within 15 days to determine
   whether the component is leaking in excess of 500 ppmv of VOC.  If the component is
   found to be leaking in excess of 500 ppmv of VOC, it shall be subject to the repair and
      replacement requirements contained in this special condition.Audio, Visual and Olfactory (AVO) Inspection 
5/94

Piping, Valves, Pumps, and Compressors in (x) Service

A.  Audio, olfactory, and visual checks for (insert compound)
    leaks within the operating area shall be made every four
    hours.

B.  Immediately, but no later than one hour upon detection of
    a leak, plant personnel shall take the following actions:

    (1)  Isolate the leak.
    (2)  Commence repair or replacement of the leaking 
         component.
    (3)  Use a leak collection/containment system to prevent
         the leak until repair or replacement can be made if
         immediate repair is not possible.

    Date and time of each inspection shall be noted in the 
    operator's log or equivalent.  Records shall be maintained
    at the plant site of all repairs and replacements made due
    to leaks.  These records shall be made available to
    representatives of the Texas Natural Resource Conservation
    Commission (TNRCC) upon request.Audio, Visual and Olfactory (AVO) Inspection for Petroleum
Marketing Terminals
3/96

Piping, Valves, Pumps, and Compressors in Petroleum Service

     A. Audio, olfactory, and visual checks for petroleum
        product leaks within the operating area shall be made
        monthly.

     B. Every reasonable effort shall be made to repair or replace
        a leaking component within 15 days after a leak is found. 
        If the repair or replacement of a leaking component would
        require a unit shutdown, the repair may be delayed until
        the next scheduled shutdown.  All leaking components which
        cannot be repaired or replaced until a scheduled shutdown
        shall be identified in a list to be made available to
        representatives of the Texas Natural Resource Conservation
        Commission (TNRCC) upon request. 

Records shall be maintained at the plant site of all repairs and
replacements made due to leaks.  These records shall be made
available to representatives of the TNRCC upon request. 28 CNTA
3/98

In addition to the weekly physical inspection required by Item E of Special Condition XX, all
connectors in gas\vapor and light liquid service shall be monitored annually with an approved
gas analyzer in accordance with Items F thru J of Special Condition XX.  Alternative monitoring
frequency schedules ("skip options") of 40 Code of Federal Regulations Part 63, Subpart H,
National Emission Standards for Organic Hazardous Air Pollutants for Equipment Leaks, may be
used in lieu of the monitoring frequency required by this permit condition.  Compliance with this
condition does not assure compliance with requirements of applicable state or federal regulation
and does not constitute approval of alternative standards for these regulations.

28CNTQ
3/98

A. In addition to the weekly physical inspection required by Item E of Special Condition XX,
   all accessible connectors in gas\vapor and light liquid service shall be monitored quarterly 
   with an approved gas analyzer in accordance with Items F thru J of Special Condition XX.  

B. In lieu of the monitoring frequency specified in paragraph A, connectors may be
   monitored on a semiannual basis if the percent of connectors leaking for two consecutive
   quarterly monitoring periods is less than 0.5 percent.

   Connectors may be monitored on an annual basis if the percent of connectors leaking for
   two consecutive semiannual monitoring periods is less than 0.5 percent.

   If the percent of connectors leaking for any semiannual or annual monitoring period is
   0.5 percent or greater, the facility shall revert to quarterly monitoring until the facility
   again qualifies for the alternative monitoring schedules previously outlined in this
   paragraph.

C. The percent of connectors leaking used in paragraph B shall be determined using the
   following formula:

        (Cl + Cs ) x 100/Ct = Cp

   Where:
   
   Cl = the number of connectors found leaking by the end of the monitoring period,
        either by Method 21 or sight, sound, and smell.

   Cs = the number of connectors for which repair has been delayed and are listed on the
        facility shutdown log.

   Ct = the total number of connectors in the facility subject to the monitoring
        requirements, as of the last day of the monitoring period, not including
        nonaccessible and unsafe-to-monitor connectors.

   Cp = the percentage of leaking connectors for the monitoring period.