SCAQMD RULE 1134 EMISSIONS OF OXIDES OF NITROGEN FROM STATIONARY GAS TURBINES
LAST REVISED 04/11/97

(Adopted August 4, 1989)(Amended December 7, 1995)(Amended April 11, 1997)

RULE 1134. EMISSIONS OF OXIDES OF NITROGEN FROM STATIONARY GAS TURBINES

(a) Applicability

The provisions of this rule shall apply to all existing stationary gas turbines, 0.3 megawatt (MW) and larger, as of August 4, 1989.

(b) Definitions

  1. CHEMICAL PROCESSING GAS TURBINE UNIT is a gas turbine unit that vents its exhaust gases into the operating stream of a chemical process.
  2. COGENERATION CYCLE GAS TURBINE UNIT is a gas turbine unit that operates both for the simultaneous production of shaft work and for the recovery of useful thermal energy from the exhaust gases or waste steam as defined by Section 25134 of the California Public Resources Code.
  3. COMBINED CYCLE GAS TURBINE UNIT is a gas turbine unit that operates both for the production of electrical energy from shaft work and the useful energy produced from heat recovered from its exhaust gases.
  4. EMERGENCY STANDBY GAS TURBINE UNIT is a gas turbine unit that operates only as a mechanical or electrical power source for a facility when the primary power source has been rendered inoperable, except due to power interruption pursuant to an interruptible power supply agreement. This does not include utility company electrical power plant units.
  5. EMISSION CONTROL PLAN is a plan that shall contain at a minimum District permit or identification number; name of gas turbine manufacturer; model designation; rated brake horsepower; heat rate (BTU/KW-HR), corrected to the HHV for each type of fueling (liquid/gas); type of liquid fuel and/or type of gaseous fuel; hours of operation in the previous one-year period; fuel consumption (cubic feet of gas or gallons of liquid) for the previous one-year period; and a list of all gas turbine units required to be controlled identifying the type of emission control to be applied to such gas turbine units along with documentation showing existing emissions of NOx and CO.
  6. EXHAUST AFTER-TREATMENT means a control method for the post-combustion reduction of NOx emissions, such as selective catalytic reduction (SCR).
  7. EXISTING GAS TURBINE UNIT is a stationary gas turbine unit that met the following criteria prior to August 4, 1989:
  8. (A) Had been issued a valid permit to construct or operate by the District, or

    (B) Was in operation pursuant to the provisions of District Rule 219(b)(1).

  9. HHV - HIGHER HEATING VALUE OF FUEL.
  10. LHV - LOWER HEATING VALUE OF FUEL.
  11. PEAKING GAS TURBINE UNIT is a gas turbine unit that is used intermittently to produce energy on a demand basis.
  12. PIPELINE GAS TURBINE UNIT is a stationary gas turbine unit used to transport gases or liquids in a pipeline.
  13. POWER AUGMENTATION is the increase in the gas turbine shaft output and/or the decrease in gas turbine fuel consumption by the addition of energy recovered from exhaust heat.
  14. RATING OF A GAS TURBINE UNIT is the continuous MW (megawatt) rating or mechanical equivalent by a manufacturer for gas turbine unit(s) without power augmentation.
  15. SEWAGE DIGESTER GAS is any gas derived from anaerobic decomposition of organic sewage.
  16. SOUTHEAST DESERT AIR BASIN (SEDAB) means the portion of the air basin containing specific desert portions of Los Angeles, Riverside and San Bernardino counties, as defined in Title 17, California Code of Regulations, Section 60109, within the jurisdiction of the District.
  17. STATIONARY GAS TURBINE UNIT is any gas turbine unit that is gas and/or liquid fueled with or without power augmentation. This gas turbine unit is either attached to a foundation at a facility or is portable equipment operated at a specific facility for more than 90 days in any 12-month period. Two or more gas turbines units powering one shaft shall be treated as one gas turbine unit.
  18. THERMAL STABILIZATION PERIOD is the two-hour start up time necessary for NOx control purposes in cogeneration cycle, combined cycle, or any other applicable stationary gas turbine units.

(c) Emissions Limitations

  1. The operator of any stationary gas turbine unit shall not operate such unit under load conditions, excluding the thermal stabilization period or other time period specified in the Permit to Construct or the Permit to Operate issued prior to August 4, 1989, which result in the discharge of oxides of nitrogen (NOx) emissions, directly or indirectly, into the atmosphere at concentrations in excess of the following as measured pursuant to subdivision (e):
  2. Where:

    Compliance Limit = allowable NOx emissions (ppm by volume).
    Reference Limit = the NOx emission limit (ppm by volume) is corrected to 15 percent oxygen on a dry basis, and averaged over 15 consecutive minutes. These limits for various megawatt ratings (continuous rating by the manufacturer without power augmentation) are as follows:

    REFERENCE NOx LIMITS, PPM

    Unit Size
    Megawatt (MW) Rating
    Effective

    12-31-95

    0.3 to Less Than 2.9 MW 25
    2.9 to Less Than 10.0 MW 9
    2.9 to Less Than 10.0 MW
    No SCR
    15
    10.0 MW and Over 9
    10.0 MW and Over
    No SCR
    12
    60 MW and Over Combined Cycle
    No SCR
    15
    60 MW and Over Combined Cycle 9

    Effective
    4/11/97
    2.9 to Less Than 10.0 MW Utilizing Fuel Containing a Minimum of 60% Sewage Digester Gas by Volume on a Daily Average 25

    And,

    or,

    or

    EFF = the demonstrated percent efficiency of the gas turbine unit only as calculated without consideration of any downstream energy recovery from the actual heat rate, (BTU/KW HR) or 1.34 BTU/HP; corrected to the HHV (higher heating value) of the fuel, as measured at peak load for that facility; or the manufacturer's continuous rated percent efficiency (manufacturer's rated efficiency) of the gas turbine unit after correction from LHV (lower heating value) to the HHV of the fuel, whichever efficiency is higher. The value of EFF shall not be less than 25 percent. Gas turbine units with lower efficiencies will be assigned a 25 percent efficiency for this calculation.
  3. The operator of any existing gas turbine unit subject to this rule shall also be subject to Regulation XIII if carbon monoxide (CO) emissions increase as a result of the application of NOx controls.

(d) Monitoring and Source Testing

The operator of any stationary gas turbine unit subject to the provisions of this rule shall perform the following actions:

  1. Install, operate, and maintain in calibration a continuous in-stack NOx and oxygen monitoring system which meets the requirements of 40 CFR Part 60, Appendix B, Spec. 2, for NOx , Spec 3 for oxygen (except the alternative RA procedures for Spec. 2 shall not apply), the 2 and 24 -hour calibration spec. of Rule 218, and 40 CFR Part 60, Appendix F to demonstrate compliance with the emission limits of this rule. The continuous emissions monitoring system shall have data gathering and retrieval capability which meets the reporting requirements of 40 CFR part 60.7(c), 60.7(d), and 60.13. This system shall include equipment that measures and records the following:
  2. (A) Flow rate of liquids or gases and the ratio of water or steam to fuel added to the combustion chamber or to the exhaust for the reduction of NOx emissions, as applicable.

    (B) Elapsed time of operation.

  3. Source Testing
  4. (A) Provide source test information regarding the gas turbine unitís exhaust gas NOx concentration, and the demonstrated percent efficiency (EFF), or the manufacturerís rated EFF, if the Executive Officer determines that it is representative of the unitís EFF, and the carbon monoxide concentration as specified pursuant to paragraph (e)(1). NOx and carbon monoxide concentrations shall be in ppm by volume, corrected to 15 percent oxygen on a dry basis.

    (B) Source Test Frequency

    (i) Units emitting 25 tons or more of NOx per calendar year shall be source tested, at least once every 12 months.

    (ii) All other existing units shall be source tested within 90 days after every 8,400 hours of operation.

(e) Test Methods

The following may be used by the Executive Officer to verify the concentrations of NOx, CO and oxygen subject to the provisions of this rule. Emissions determined to exceed any limits established by this rule through either of the following shall constitute a violation of this rule.

  1. District Test Methods 3.1, 7.1, 10.1 and 100.1 and EPA Test Method 10 or any method deemed to be equivalent by the Executive Officer and approved by CARB and EPA.
  2. Data obtained from a continuous emissions monitoring system, which is installed and properly operated according to paragraph (d)(1) of this rule and as approved by the Executive Officer.

(f) Recordkeeping

The facility operator shall comply with the following provisions:

  1. All records shall be maintained at the facility for a period of two years and made available to District staff upon request.
  2. Maintain a gas turbine operating log that includes, on a daily basis, the actual Pacific Standard Time start-up and stop time, total hours of operation; type and quantity of fuel used (liquid/gas), cumulative hours of operation to date for the calendar year; and if applicable the cumulative hours of operation since the last source test required by subparagraph (d)(2)(A).
  3. A monthly summary of emissions pursuant to paragraph (d)(1) shall be submitted to the District on or before the last day of the following calendar month.
  4. The results of source tests shall be submitted to the District in a form and manner as specified by the Executive Officer within 30 days after testing is completed.
  5. Any person using an emission control system as a means of complying with this rule shall maintain daily records of system operation and maintenance which will demonstrate proper operation and compliance of the emission control device during periods of emission producing activities.

(g) Exemptions

Any person seeking to qualify for any one of the following exemptions has the burden of proving its existing gas turbine unit meets the applicable specified criteria.

  1. All provisions of this rule shall not apply to the following:
  2. (A) Laboratory gas turbine units used in research and testing.

    (B) Gas turbine units operated exclusively for fire fighting and/or flood control.

    (C) Chemical processing gas turbine units.

    (D) All existing pipeline gas turbine units located in the Southeast Desert Air Basin (SEDAB).

  3. The provisions of subdivisions (c) and (d), and paragraphs (f)(3), (f)(4) and (f)(5) shall not apply to the following:
  4. (A) Emergency standby and peaking gas turbine units demonstrated to operate less than 200 hours per calendar year, which have installed and maintained in proper operation a non-resettable engine hour meter.

    (B) All existing gas turbine units located in the Southeast Desert Air Basin (SEDAB) which are rated below 4 MW and operate less than 877 hours per year.

    (C) All existing gas turbine units located on San Clemente Island which are rated below 4 MW and operate less than 877 hours per year.

    However, if the hour-per-year limit is exceeded, the exemption shall be automatically and permanently withdrawn. The operator of any stationary gas turbine exempt under this subparagraph must notify the Executive Officer within seven days if the hour-per-year limit is exceeded. Within 30 days after the date the hour-per-year limit is exceeded, the operator must submit a permit application for modification to equipment to meet the applicable compliance limit within 24 months of the date the hour-per-year limit is exceeded. Included with this permit application, the operator must submit an emission control plan including a schedule of increments of progress for the installation of the required control equipment. This plan and schedule shall be subject to the review and approval of the Executive Officer.


SCAQMD RULE 1134 EMISS. OF OXIDES OF NITRO. FROM STAT. GAS TURBINES                        
LAST REVISED 12/07/1995                        

                        
                        (Adopted August 4, 1989) (Amended December 7, 1995)


          RULE 1134.  EMISSIONS OF OXIDES OF NITROGEN FROM STATIONARY
                      GAS TURBINES

          (a) Applicability

              The provisions of this rule shall apply to all existing
              stationary gas turbines, 0.3 megawatt (MW) and larger, as of
              August 4, 1989.

          (b) Definitions

              ( 1) CHEMICAL PROCESSING GAS TURBINE UNIT is a gas turbine 
                   unit that vents its exhaust gases into the operating 
                   stream of a chemical process.

              ( 2) COGENERATION CYCLE GAS TURBINE UNIT is a gas turbine unit
                   that operates both for the simultaneous production of 
                   shaft work and for the recovery of useful thermal energy 
                   from the exhaust gases or waste steam as defined by 
                   Section 25134 of the California Public Resources Code.

              ( 3) COMBINED CYCLE GAS TURBINE UNIT is a gas turbine unit 
                   that operates both for the production of electrical 
                   energy from shaft work and the useful energy produced 
                   from heat recovered from its exhaust gases.

              ( 4) EMERGENCY STANDBY GAS TURBINE UNIT is a gas turbine unit
                   that operates only as a mechanical or electrical power 
                   source for a facility when the primary power source has 
                   been rendered inoperable, except due to power 
                   interruption pursuant to an interruptible power supply 
                   agreement.  This does not include utility company 
                   electrical power plant units.

              ( 5) EXHAUST AFTER TREATMENT means a control method for the
                   post-combustion reduction of NOx emissions, such as 
                   selective catalytic reduction.

              ( 6) EXISTING GAS TURBINE UNIT is a stationary gas turbine 
                   unit that prior to August 4, 1989 meets the following 
                   criteria:

                   (A) Has been issued a valid permit to construct or 
                       operate by the District, or

                   (B) Is in operation pursuant to the provisions of 
                       District Rule 219(b)(1).

              ( 7) HHV - HIGHER HEATING VALUE OF FUEL.

              ( 8) LHV - LOWER HEATING VALUE OF FUEL.
              
              ( 9) The Measured NOx Emissions Concentration corrected to
                   International Standards Organization (ISO) standard 
                   conditions is:

                                    0.5           1.53  19(Hobs - 0.00633))
          NOx = (NOx obs)(Pref/Pobs)   (288K/Tamb)    (e

                   Where:
                           NOx     = emissions of NOx at 15 percent oxygen 
                                     and ISO standard conditions on a dry 
                                     basis, ppm.

                           NOx obs = measured NOx emissions at 15 percent 
                                     oxygen on a dry basis, ppm.

                           Pref    = reference ambient absolute pressure, 
                                     101.3 kilopascals (14.696 psia).

                           Pobs    = measured ambient absolute pressure.

                           Hobs    = measured absolute specific humidity of
                                     ambient air, pounds water per pound dry 
                                     air.

                           e       = transcendental constant (2.718).

                           Tamb    = measured temperature of ambient air,
                                     degrees K.

              (10) PEAKING GAS TURBINE UNIT is a gas turbine unit that is
                   used intermittently to produce energy on a demand basis.

              (11) PIPELINE GAS TURBINE UNIT is a stationary gas turbine 
                   unit used to transport gases or liquids in a pipeline.

              (12) POWER AUGMENTATION is the increase in the gas turbine
                   shaft output and/or the decrease in gas turbine fuel 
                   consumption by the addition of energy recovered from 
                   exhaust heat.

              (13) RATING OF A GAS TURBINE UNIT is the continuous MW
                   (megawatt) rating or mechanical equivalent by a 
                   manufacturer for gas turbine unit(s) without power 
                   augmentation.

              (14) SOUTHEAST DESERT AIR BASIN (SEDAB) means the portion of
                   the air basin containing specific desert portions of 
                   Los Angeles, Riverside and San Bernardino counties, as 
                   defined in Title 17, California Code of Regulations, 
                   Section 60109, within the jurisdiction of the District.

              (15) Stationary Gas Turbine Unit is any gas turbine unit that
                   is gas and/or liquid fueled with or without power 
                   augmentation.  This gas turbine unit is either attached 
                   to a foundation at a facility or is portable equipment 
                   operated at a specific facility for more than 90 days in 
                   any 12-month period.  Two or more gas turbines units 
                   powering one shaft shall be treated as one gas turbine 
                   unit.

              (16) THERMAL STABILIZATION PERIOD is the two-hour start up 
                   time necessary to build-up steam pressure for NOx control 
                   purposes in cogeneration cycle, combined cycle, or any 
                   other applicable stationary gas turbine units.

          (c) Emissions Limitations

              (1) The owner or operator of any stationary gas turbine unit
                  shall not operate such unit under load conditions, 
                  excluding the thermal stabilization period or other time 
                  period specified in the Permit to Construct or the Permit 
                  to Operate issued prior to August 4, 1989, which result in 
                  the discharge of oxides of nitrogen (NOx) emissions, 
                  directly or indirectly, into the atmosphere at 
                  concentrations in excess of the following:

                      Compliance Limit  =  Reference Limit  x  EFF
                                                               25%
                  Where:

                      Compliance Limit  =  allowable NOx emissions (ppm by
                                             volume).

                      Reference Limit   =  the NOx emission limit (ppm by
                                            volume) is corrected to 
                                            15 percent oxygen on a dry basis, 
                                            and averaged over 15 consecutive 
                                            minutes.  These limits for 
                                            various megawatt ratings 
                                            (continuous rating by the 
                                            manufacturer without power 
                                            augmentation) are as follows:

                              
                              REFERENCE NOx LIMITS, PPM

                      Unit Size                    Effective
                      Megawatt                     12-31-95
                      Rating (MW)

                      0.3 to Less
                      Than 2.9 MW                     25

                      2.9 to Less
                      Than 10.0 MW                     9

                      2.9 to Less
                      Than 10.0 MW
                      No SCR                          15

                      10.0 MW and Over                 9

                      10.0 MW and Over
                      No SCR                          12

                      60 MW and Over
                      Combined Cycle
                      No SCR                          15

                      60 MW and Over
                      Combined Cycle                   9

                  And,
                       EFF  =                 3413 x 100%
                               ___________________________________________
                               Actual Heat Rate at HHV of Fuel (BTU/KW-HR)

                  or

                       EFF  =  (Manufacturer's Rated Efficiency at LHV)xLHV
                                                                        ___
                                                                        HHV

                       EFF  =  the demonstrated percent efficiency of the
                               gas turbine unit only as calculated without 
                               consideration of any downstream energy 
                               recovery from the actual heat rate, 
                               (BTU/KW-HR) or 1.34 (BTU/HP-HR); corrected 
                               to the HHV (higher heating value) of the 
                               fuel, as measured at peak load for that 
                               facility; or the manufacturer's continuous 
                               rated percent efficiency (manufacturer's 
                               rated efficiency) of the gas turbine unit 
                               after correction from LHV (lower heating 
                               value) to the HHV of the fuel, whichever 
                               efficiency is higher.  The value of EFF 
                               shall not be less than 25 percent.  Gas 
                               turbine units with lower efficiencies will 
                               be assigned a 25 percent efficiency for 
                               this calculation.

              (2) The owner or operator of any existing gas turbine unit
                  subject to this rule shall also be subject to 
                  Regulation XIII if carbon monoxide (CO) emissions 
                  increase as a result of the application of NOx controls.

          (d) Compliance Schedule

              Owners or operators of all existing gas turbine units shall
              comply with the provisions of subdivision (c) in accordance 
              with the following schedule:

              (1) For gas turbine units rated from 0.3 to less than 2.9 MW.

                  (A) By December 31, 1993 submit to the Executive Officer 
                      or designee for approval an Emission Control Plan of 
                      actions and alternatives which will be taken to 
                      demonstrate compliance.

                  (B) Demonstrate final compliance with the 25 ppm reference
                      emission limit by December 31, 1995.

              (2) For gas turbine units rated from 2.9 to less than 10.0 MW.
                         
                  (A) By December 31, 1993 elect reference emission limit 
                      and submit to the Executive Officer or designee for 
                      approval an Emission Control Plan of actions and 
                      alternatives which will be taken to demonstrate 
                      compliance with this limit.
                         
                  (B) Demonstrate final compliance with the elected 
                      reference emission limit by December 31, 1995.
                         
                  (C) If compliance with the elected 15 ppm reference 
                      emission limit is not demonstrated by December 31, 
                      1995, the reference emission limit shall be 9 ppm.
                    
              (3) For gas turbine units rated at 10.0 MW and over.
                         
                  (A) The owners or operators of the following gas turbine 
                      units or equivalent gas turbines units as approved by 
                      the Executive Officer or designee shall install steam 
                      injection on the specified gas turbine units 
                      demonstrating compliance with a reference emission 
                      limit of 15 ppm NOx at 15 percent oxygen on a dry 
                      basis:
                              
                      (i)  By December 31, 1989, submit an Emission Control 
                           Plan and a permit to construct for a GE LM-5000 
                           to demonstrate compliance by December 31, 1990.
                              
                      (ii) By December 31, 1989, submit an Emission Control 
                           Plan and a permit to construct for a GE LM-2500 
                           to demonstrate compliance by December 30, 1991.
                         
                  (B) By December 31, 1992, submit to the Executive Officer 
                      or designee for approval an Emission Control Plan of 
                      actions and alternatives which will be taken to 
                      demonstrate compliance.
                         
                  (C) Demonstrate final compliance with the appropriate 
                      reference emission limit in paragraph (c)(1) by 
                      December 31, 1995.
                         
                  (D) If compliance with the elected 12 ppm reference 
                      emission limit is not demonstrated by December 31, 
                      1995 the reference emission limit shall be 9 ppm.
                         
                  (E) If there is a failure to comply with any of the 
                      increments of progress specified in 
                      clauses (d)(3)(A)(i) or (d)(3)(A)(ii), the final 
                      reference NOx limit for all 10 MW and greater units 
                      shall be a reference emission limit of 9 ppm.
                                        
                      (i)  By August 1, 1992, the owners or operators of all 
                           10 MW and greater gas turbine units shall submit 
                           to the Executive Officer or designee for approval 
                           Emission Control Plans.
                                        
                      (ii) The final compliance date for all 10 MW and 
                           greater units with the reference 9 ppm NOx limit 
                           shall be August 1, 1993.
                         
                  (F) Any gas turbine unit which demonstrates early 
                      compliance with the specific final reference limit 
                      specified in paragraph (c)(1) by February 1, 1992 
                      shall remain subject to such reference emission limit 
                      and shall not be subject to any changed reference 
                      emission limit set forth in paragraph (d)(3).
                         
                  (G) In order to encourage the efficient production of 
                      electrical energy and the conservation of natural 
                      resources, any gas turbine that is operated to 
                      support the recycling and remanufacturing of paper 
                      products and that is at least fifteen years old on 
                      August 4, 1989 may comply with the following schedule:
                                   
                      By December 31, 1993:
                              
                      (i)  submit a plan to the Executive Officer or 
                           designee for approval that commits to repowering 
                           or replacement of its existing gas turbine unit 
                           by December 31, 1999 with a unit that is more 
                           energy efficient than the current unit and 
                           satisfies the BACT requirements of 
                           Regulation XIII at the time of permit 
                           application, or 
                           
                      (ii) submit a permit to construct for modifications of 
                           the existing gas turbine unit to comply by 
                           December 31, 1995 with the final reference 
                           emission limit specified in paragraph (c)(1).

              (4) For gas turbine units 60 MW and over combined cycle.
                         
                  (A) By December 31, 1992 elect reference emission limit 
                      and submit to the Executive Officer or designee for 
                      approval an Emission Control Plan of actions and 
                      alternatives which will be taken to demonstrate 
                      compliance with this limit.
                         
                  (B) Demonstrate final compliance with the elected 
                      reference emission limit by December 31, 1995.
                         
                  (C) If compliance with the elected 15 ppm reference 
                      emission limit is not demonstrated by December 31, 
                      1995 the reference emission limit shall be 9 ppm.

              (5) For exempt gas turbine units exceeding the hour-per-year
                  limit.
                    
                  The owner or operator of any stationary gas turbine
                  exempt under subparagraph (i)(1)(D) must notify the
                  Executive Officer or designee within 7 days if the
                  hour-per-year limit is exceeded.  If the hour-per-year
                  limit is exceeded, the exemption shall be automatically
                  and permanently withdrawn.  Within 30 days after the date 
                  the hour-per-year limit is exceeded, the owner or operator 
                  must submit a permit application detailing a plan to meet  
                  the applicable compliance limit within 24 months of the 
                  date the hour-per-year limit is exceeded.  Included with 
                  this permit application, the owner or operator must submit 
                  an Emission Control Plan including a schedule of 
                  increments of progress for the installation of the 
                  required control equipment.  This schedule shall be
                  subject to the review and approval of the Executive
                  Officer or designee.


          (e) Emission Control Plan
               
              The owner or operator of any existing stationary gas turbine
              unit shall submit to the Executive Officer or designee for
              approval an Emissions Control Plan of all actions and
              alternatives, including a schedule of increments of progress, 
              which will be taken to meet or exceed requirements of the 
              applicable emissions limitations in subdivision (c) and 
              compliance schedule in subdivision (d).
                         
              (1) Such plan shall contain at a minimum a list that provides  
                  the following for each gas turbine:
                         
                  (A) District permit or identification number,
                         
                  (B) name of gas turbine manufacturer,
                         
                  (C) model designation,
                         
                  (D) rated brake horsepower,
                              
                  (E) heat rate (BTU/KW-HR), corrected to the HHV for each 
                      type of fueling (liquid/gas),
                  
                  (F) type of liquid fuel and/or type of gaseous fuel,
                              
                  (G) hours of operation in the previous one-year period, 
                      and
                              
                  (H) fuel consumption (cubic feet of gas or gallons of 
                      liquid) for the previous one-year period.
                         
              (2) A list of all gas turbines units required to be controlled 
                  identifying the type of emission control to be applied to 
                  such gas turbine units along with documentation showing 
                  existing emissions of NOX and CO.
                         
              (3) Support documentation for any gas turbine units exempt 
                  under the provisions of subdivision (i).

          (f) Continuous Emissions Monitoring System
               
              The owner or operator of any stationary gas turbine unit
               subject to the provisions of this rule shall perform the
               following actions:
                    
               (1) Install, operate, and maintain in calibration a 
                   continuous in-stack NOx and oxygen monitoring system 
                   which meets the requirements of 40 CFR Part 60, 
                   Appendix B, Spec. 2, for NOX, Spec 3 for oxygen (except 
                   the alternative RA procedures for Spec. 2 shall not 
                   apply), the 2 and 24-hour calibration spec. of Rule 218, 
                   and 40 CFR Part 60, Appendix F to demonstrate compliance  
                   with the emission limits of this rule.  This system shall   
                   include equipment that measures and records the 
                   following:
                         
                   (A) For Cogeneration and Combined Cycle Gas Turbine 
                       Units 2.9 MW and over (continuous rating by the 
                       manufacturer without power augmentation), exhaust 
                       gas NOx concentrations corrected to 15 percent 
                       oxygen on a dry basis at the time gas turbine units 
                       that are subject to the applicable 9 ppm, 12 ppm, 
                       15 ppm or 25 ppm reference NOx limit.
                         
                   (B) Flow rate of liquids or gases and the ratio of water  
                       or steam to fuel added to the combustion chamber or  
                       to the exhaust for the reduction of NOx emissions, 
                       as applicable.
                         
                   (C) Elapsed time of operation.
                    
               (2) The continuous emissions monitoring system shall have 
                   data gathering and retrieval capability which meets the  
                   reporting requirements of 40 CFR part 60.7(c), 60.7(d), 
                   and 60.13.  Data shall be maintained for at least 
                   two years and made available for inspection by the 
                   Executive Officer or designee.  A monthly summary of 
                   emissions shall be submitted on or before the last day 
                   of the following calendar month.

               (3) Provide source test information regarding the gas turbine 
                   unit's exhaust gas NOx concentration, and the 
                   demonstrated percent efficiency (EFF), or the 
                   manufacturer's rated EFF, if the Executive Officer or 
                   designee determines that it is representative of the 
                   unit's EFF, and the carbon monoxide concentration.  NOx 
                   and carbon monoxide concentrations shall be in ppm by 
                   volume, corrected to 15 percent oxygen on a dry basis.  
                   In addition, NOx concentrations shall also be provided at   
                   ISO conditions.


                   Units emitting 25 tons or more of NOx per calendar year  
                   shall be source tested, at least once every 12 months.  
                   All other existing units shall be source tested within 
                   90 days after every 8,400 hours of operation.  The 
                   results  of source tests shall be submitted in a form 
                   and manner as specified by the Executive Officer or 
                   designee within 30 days after testing is completed.

          (g) Test Methods
               
              The following may be used by the Executive Officer or
              designee to verify the concentrations of NOx, CO and oxygen
              subject to the provisions of this rule:
                    
              (1) District Test Methods 3.1, 7.1, 10.1 and 100.1 and EPA 
                  Test Method 10 or any method deemed to be equivalent by 
                  the Executive Officer or designee and approved by CARB 
                  and EPA.
                    
              (2) Data obtained from a continuous emissions monitoring 
                  system, which is installed and properly operated according 
                  to subdivision (f) of this rule and as approved by the 
                  Executive Officer or designee.
          
              A violation of any standard of this rule established by any of
              the specified test methods shall constitute a violation of 
              this rule.

          (h) Recordkeeping

              The owner or operator of any stationary gas turbine unit,
              except those gas turbine units exempt under the provisions
              of subparagraphs (i)(1)(A), (B), and (C) and 
              clause (i)(1)(E)(ii) must maintain a gas turbine operating 
              log that includes, on a daily basis, the actual Pacific 
              Standard Time start-up and stop time, total hours of 
              operation; type and quantity of fuel used (liquid/gas), 
              cumulative hours of operation to date for the calendar year; 
              and cumulative hours of operation since the last source test  
              required by paragraph (f)(3).  This information shall be 
              maintained at the facility for at least two years, and be 
              made available to District staff upon request.


          (i) Exemptions
                    
              (1) Provisions of subdivisions (c), (d), (e), and (f),
                  except paragraph (e)(3) shall not apply to:
                    
                  (A) Laboratory gas turbine units used in research and 
                      testing.
                         
                  (B) Gas turbine units operated exclusively for fire 
                      fighting and/or flood control.
                         
                  (C) Chemical processing gas turbine units.
                         
                  (D) Emergency standby and peaking gas turbine units 
                      demonstrated to operate less than 200 hours per 
                      calendar year, which  have installed and maintained 
                      in proper operation a non-resettable engine hour 
                      meter.
                         
                  (E) All existing gas turbine units located in the 
                      Southeast Desert Air Basin (SEDAB) which:
                                    
                      (i)  are rated below 4 MW and operate less than 
                           877 hours per year; or
                                   
                      (ii) are pipeline gas turbines units.
                         
                  (F) All existing gas turbine units located on San Clemente  
                      Island which are rated below 4 MW and operate less 
                      than 877 hours per year.