NOTE: Draft determinations are marked with a " * " beside the RBLC ID.

Report Date: 02/14/2010 Control Technology Determinations (Freeform)

Facility Information: COGE NERATION PLANT (AES-PRCP)

RBLC ID: P R -0007 *Facilit y Name: COGENERATION PLANT (AES-PRCP) Application Accepted Received Date: 07/11/2001 EST

Permit Issuance Date: 10/29/2001 ACT Date determination last updated: 08/31/2006

Permit Type: A: NEW/ GREENFIELD FACILITY

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: LIMESTONE DRYE R *Process T y pe: 13.310 Primar y Fuel: PROPANE Throu g hput: 13.00 Throu g hput Unit: MMBTU/H

Pollutant Information: COGENERATION PLANT (AES-PRCP) - LIMESTONE DRYER

*Pollutant Name Carbon Monoxide Emission Limit 1: 0.2600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0200 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name N itro g en Oxides (NOx) Emission Limit 1: 1.9500 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Format RBLC Report

3/6/2010Standard Emission Limit: 0.1500 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Visible Emissions (VE) Emission Limit 1: 20.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: 6 MIN AV

Emission Limit 2: 27.0000 Emission Limit 2 Unit: % OPACITY Emission Limit 2 Avg. Time/Condition: 1 6 MIN SET/H

Standard Emission Limit: 20.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: 6 MIN AV

*Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.2600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0200 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 0.0100 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.1300 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: Format RBLC Report Format RBLC Report

3/6/2010*Pollutant Name Part iculate Matter (PM) Emission Limit 1: 1.2400 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0950 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: 2 COAL-FIRED CIRCULATING FLUIDIZED BED BOILERS *Process T y pe: 11.110 Primar y Fuel: BITUMINOUS COAL Throu g hput: 454.00 Throu g hput Unit: MW (NET)

Pollutant Information: COGENERATION PLAN T (AES-PRCP) - 2 COAL -FIRED CIRCULATING FLUIDIZED BED BOILERS

*Pollutant Name Carbon Monoxide Emission Limit 1: 246.1000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 94.0000 Emission Limit 2 Unit: PPMVD @7%O2 Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.1000 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition: 8 H BASIS

*Pollutant Name Sulfuric Acid (mist, vapors, etc) Emission Limit 1: 0.6400 Emission Limit 1 Unit: PPMVD @ 7%O2 O R Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MIST

Emission Limit 2: 5.9000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. SULFURIC ACID MIST Format RBLC Report Format RBLC Report

3/6/2010Time/Condition: Standard Emission Limit: 0.0024 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition: SULFURIC ACID MIST

*Pollutant Name H y dro g en Fluoride Emission Limit 1: 0.0005 Emission Limit 1 Unit: LB/MMBTU Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 1.1800 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Ammonia (NH3) Emission Limit 1: 10.0000 Emission Limit 1 Unit: PPMDV @ 7% O2 Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name N itro g en Oxides (NOx) Emission Limit 1: 57.0000 Emission Limit 1 Unit: PPMVD @ 7% O2 Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.1000 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition: Format RBLC Report Format RBLC Report

3/6/2010*Pollutant Name Visible Emissions (VE) Emission Limit 1: 20.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: 6 MIN AV

Emission Limit 2: 27.0000 Emission Limit 2 Unit: % Emission Limit 2 Avg. Time/Condition: 1 6 MIN SET/H

Standard Emission Limit: 20.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: 6 MIN AV

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) Emission Limit 1: 73.8000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SEE POLLUTANT NOTES

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0300 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition: SEE POLLUTANT NOTES

*Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 9.0000 Emission Limit 1 Unit: PPMVD @ 7% O2 Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 54.1000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: 3 H AV

Standard Emission Limit: 0.0220 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Organic Compounds (VOC) Emission Limit 1: 7.7000 Emission Limit 1 Unit: PPMVD @ 7% O2 Emission Limit 1 Avg. Time/Condition: Format RBLC Report Format RBLC Report

3/6/2010Emission Limit 2: 11.6000 Emission Limit 2 Unit: LB/H Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: COOLING TOWE R *Process T y pe: 99.009 Primary Fuel: N /A Throu g hput: 250000.00 Throughput Unit: GAL/MIN

Pollutant Information: COGENERATION PLANT (AES-PRCP) - COOLING TOWER

*Pollutant Name Particulate matt er, filterable < 10 Âμ (FPM10) Emission Limit 1: 0.3300 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 0.5000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: Format RBLC Report Format RBLC Report

3/6/2010*Pollutant Name Part iculate Matter (PM) Emission Limit 1: 15.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: STORAGE TANKS- FUEL START-UP TAN K *Process T y pe: 42.009 Primar y Fuel: Throu g hput: 150000.00 Throu g hput Unit: GALLON

Pollutant Information: COGENERATION PLAN T (AES-PRCP) - STORAGE TANKS- FUEL STARTUP TANK

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 47.9000 Emission Limit 1 Unit: LB/Y R Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: STORAGE TANKS- DIESEL FUEL *Process T y pe: 42.009 Primary Fuel: Throu g hput: 200.00 Throughput Unit: TO 2000 GAL (5TANKS) Format RBLC Report Format RBLC Report

3/6/2010Pollutant Information: COGENERATION PLANT (AES-PRCP) - STORAGE TANKS- DIESEL FUEL

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 5.0000 Emission Limit 1 Unit: LB/Y R Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: FIRE PUMP- DIESEL *Process T y pe: 19.800 Primary Fuel: DISTILLATE OIL Throu g hput: Throughput Unit:

Pollutant Information: COGENERATION PL ANT (AES-PRCP) - FIRE PUMP- DIESEL

*Pollutant Name Carbon Monoxide Emission Limit 1: 5.1000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available

*Pollutant Name N itro g en Oxides (NOx) Emission Limit 1: 10.4000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Format RBLC Report Format RBLC Report

3/6/2010Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) Emission Limit 1: 0.3000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.1300 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 0.5000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Format RBLC Report Format RBLC Report

3/6/2010Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: DIESEL GENERATOR, EMERGENCY EQUIPMENT *Process Type: 19.800 Primar y Fuel: DISTILLATE OIL* Throughput: Throu g hput Unit:

Pollutant Information: COGENERATION PLANT (AES-PRCP) - DIESEL GENERATOR, EMERGENCY EQUIPMENT

*Pollutant Name Carbon Monoxide Emission Limit 1: 0.5500 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available

*Pollutant Name N itro g en Oxides (NOx) Emission Limit 1: 14.5800 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) Emission Limit 1: 0.6800 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Format RBLC Report Format RBLC Report

3/6/2010Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.2900 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Organic Compounds (VOC) Emission Limit 1: 0.0600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

Process Information : COGENE RATION PLANT (AES-PRCP)

*Process Name: EMERGENCY BOI LER FEED PUMP- DIESEL ENGINE *Process Type: 19.800 Primar y Fuel: DISTILLATE OIL* Throughput: Throu g hput Unit:

Pollutant Information: COGENERATION PLAN T (AES-PRCP) - EMER GENCY BOILER FEED Format RBLC Report Format RBLC Report

3/6/2010PUMP- DIESEL ENGINE

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) Emission Limit 1: 0.8200 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) Emission Limit 1: 0.8200 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Or g anic Compounds (VOC) Emission Limit 1: 0.9900 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name N itrogen Oxides (NOx) Emission Limit 1: 12.3400 Emission Limit 1 Unit: LB/Y R Emission Limit 1 Avg. Format RBLC Report Format RBLC Report

3/6/2010Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available

*Pollutant Name Carbon Monoxide Emission Limit 1: 2.6700 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition: N ot Available Format RBLC Report Format RBLC Report

3/6/2010