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

Report Date: 03/05/2010 Control Technology Determinations (Freeform)

Facility Information: NORT ON ENERGY STORAGE, LLC

RBLC ID: OH-0264 *Facilit y Name: N ORTON ENERGY STORAGE, LLC EPA Re g ion: 5 *Permit Number: 16-02110 *SIC: 4911 Permit Issuance Date: 05/23/2002 ACT Date determination entered in RBLC: 04/17/2003

Process Information : NORT ON ENERGY STORAGE, LLC

*Process Name: COMBUSTION TURBINES (9), COMB CYCLE W DUCT BURNER *Process T y pe: 15.210 Primar y Fuel: N ATURAL GAS Throu g hput: 300.00 Throu g hput Unit: MW

Pollutant Information: NORTON ENERGY ST ORAGE, LLC - COMBUSTION TURBINES (9), COMB CYCLE W DUCT BURNER

*Pollutant Name N itrogen Oxides (NOx) *Control Method Code: B *Control Method Description: SELECTIVE CATALYTIC REDUCT ION (SCR) AND DRY LOW NOX (DLN)BURNERS Emission Limit 1: 16.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 37.7000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 3.5000 Standard Emission Limit Unit: PPM @ 15% O2

Standard Limit Avg. Time/Condition:

*Pollutant Name Carbon Monoxide *Control Method Code: N *Control Method Description: CATALYTIC OXIDATION WAS NOT CONSIDERED COST EFFECTIVE.

Emission Limit 1: 38.0000 Format RBLC Report

3/6/2010Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 195.4000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 17.0000 Standard Emission Limit Unit: PPM @ 15% O2

Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Organic Compounds (VOC) *Control Method Code: N *Control Method Description: Emission Limit 1: 7.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 16.3000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Particulate matt er, filterable < 10 Âμ (FPM10) *Control Method Code: N *Control Method Description: Emission Limit 1: 13.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 27.0000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) *Control Method Code: N Format RBLC Report Format RBLC Report

3/6/2010*Control Method Description: Emission Limit 1: 2.5500 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 5.3000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Ammonia (NH3) *Control Method Code: N *Control Method Description: Emission Limit 1: 20.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 41.6000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Formaldeh y de *Control Method Code: N *Control Method Description: Emission Limit 1: 0.4720 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 1.0960 Emission Limit 2 Unit: T/Y R 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 Sulfuric Acid (mist, vapors, etc) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.2550 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MIST

Emission Limit 2: 0.5300 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: SULFURIC ACID MIST

Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Visible Emissions (VE) *Control Method Code: N *Control Method Description: Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: as a six minute average

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 10.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: as a six minute average

Process Information : NORT ON ENERGY STORAGE, LLC

*Process Name: RECUPERATOR PRE-HEATERS (9) *Process T y pe: 13.310 Primary Fuel: N ATURAL GAS Throu g hput: 12.84 Throughput Unit: MMBTU/H

Pollutant Information: NORTON ENERGY ST ORAGE, LLC - RECUPERATOR PRE-HEATERS (9)

*Pollutant Name N itro g en Oxides (NOx) *Control Method Code: N Format RBLC Report Format RBLC Report

3/6/2010*Control Method Description: Emission Limit 1: 1.2070 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0600 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0940 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) *Control Method Code: P *Control Method Description: THE MAXIMUM SULFUR CONTENT OF THE NATURAL GAS SHALL N OT EXCEED 0.6 GRAINS PER 100 STANDARD CUBIC FEET. Emission Limit 1: 0.0230 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0012 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0020 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Carbon Monoxide *Control Method Code: N *Control Method Description: Emission Limit 1: 0.5140 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0300 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0400 Standard Emission Limit Unit: LB/MMBTU

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

3/6/2010*Pollutant Name Volatile Or g anic Compounds (VOC) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.0710 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0040 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0060 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Particulate matt er, filterable < 10 Âμ (FPM10) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.0980 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0050 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0080 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Visible Emissions (VE) *Control Method Code: N *Control Method Description: Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: as a six minute average

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 10.0000 Standard Emission Limit % OPACITY Format RBLC Report Format RBLC Report

3/6/2010Unit: Standard Limit Avg. Time/Condition: as a six minute average

Process Information : NORT ON ENERGY STORAGE, LLC

*Process Name: FUEL SUPPLY HEATERS (9) *Process T y pe: 13.310 Primary Fuel: N ATURAL GAS Throu g hput: 11.45 Throughput Unit: MMBTU/H

Pollutant Information: NORTON ENERGY STORAGE, LLC - FUEL SUPPLY HEATERS (9)

*Pollutant Name N itro g en Oxides (NOx) *Control Method Code: N *Control Method Description: Emission Limit 1: 1.0760 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 2.2400 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0940 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) *Control Method Code: P *Control Method Description: THE MAXIMUM SULFUR CONTENT OF THE NATURAL GAS SHALL N OT EXCEED 0.6 GRAINS PER 100 STANDARD CUBIC FEET. Emission Limit 1: 0.0210 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.0400 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0020 Standard Emission Limit Unit: LB/MMBTU

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

3/6/2010*Pollutant Name Carbon Monoxide *Control Method Code: N *Control Method Description: Emission Limit 1: 0.9600 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 2.0000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0840 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Volatile Organic Compounds (VOC) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.0630 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.1300 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0060 Standard Emission Limit Unit: LB/MMBTU

Standard Limit Avg. Time/Condition:

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.0870 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 0.1800 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 0.0080 Standard Emission Limit LB/MMBTU Format RBLC Report Format RBLC Report

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

*Pollutant Name Visible Emissions (VE) *Control Method Code: N *Control Method Description: Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: as a six minute average

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 10.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: as a six minute average

Process Information : NORT ON ENERGY STORAGE, LLC

*Process Name: COOLING TOWERS (3), MECHANICAL INDUCED DRAFT *Process T y pe: 99.003 Primar y Fuel: Throu g hput: Throu g hput Unit:

Pollutant Information: NORTON ENERGY STORAGE, LLC - COOLING TOWERS (3), MECHANICAL INDUCED DRAFT

*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) *Control Method Code: N *Control Method Description: Emission Limit 1: 5.6200 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 24.6000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Format RBLC Report Format RBLC Report

3/6/2010Time/Condition:

*Pollutant Name Visible Emissions (VE) *Control Method Code: N *Control Method Description: Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: as a 3 minute average

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 10.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: as a 3 minute average

Process Information : NORT ON ENERGY STORAGE, LLC

*Process Name: COMBUSTION TURBINE (9 ), COMB CYCLE W/O DUCT BURNE R *Process T y pe: 15.210 Primar y Fuel: N ATURAL GAS Throu g hput: 300.00 Throu g hput Unit: MW

Pollutant Information: NORTON ENERGY STORAGE, LLC - COMBUSTION TURBINE (9), COMB CYCLE W/O DUCT BURNER

*Pollutant Name N itro g en Oxides (NOx) *Control Method Code: B *Control Method Description: SELECTIVE CATALYTIC REDUCTION (SCR) AND DRY LOW NOX (DLN) BURNERS Emission Limit 1: 14.5000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 37.7000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 3.5000 Standard Emission Limit Unit: PPM @ 15% O2

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

3/6/2010*Pollutant Name Particulate matter, filterable < 10 Â μ (FPM10) *Control Method Code: N *Control Method Description: Emission Limit 1: 12.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 27.0000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfur Dioxide (SO2) *Control Method Code: N *Control Method Description: Emission Limit 1: 1.9800 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 5.3000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Carbon Monoxide *Control Method Code: N *Control Method Description: CATALYTIC OXIDATION WAS NOT CONSIDERED COST EFFECTIVE.

Emission Limit 1: 23.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 195.4000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 11.0000 Standard Emission Limit Unit: PPM @ 15% O2 Format RBLC Report Format RBLC Report

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

*Pollutant Name Volatile Or g anic Compounds (VOC) *Control Method Code: N *Control Method Description: Emission Limit 1: 4.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 16.3000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Visible Emissions (VE) *Control Method Code: N *Control Method Description: Emission Limit 1: 10.0000 Emission Limit 1 Unit: % OPACITY Emission Limit 1 Avg. Time/Condition: as a six minute average

Emission Limit 2: Emission Limit 2 Unit: Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: 10.0000 Standard Emission Limit Unit: % OPACITY

Standard Limit Avg. Time/Condition: as a six minute average

*Pollutant Name Ammonia (NH3) *Control Method Code: N *Control Method Description: Emission Limit 1: 20.0000 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 41.6000 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Format RBLC Report Format RBLC Report

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

*Pollutant Name Formaldeh y de *Control Method Code: N *Control Method Description: Emission Limit 1: 0.4512 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: Emission Limit 2: 1.0960 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: Standard Emission Limit: Standard Emission Limit Unit: Standard Limit Avg. Time/Condition:

*Pollutant Name Sulfuric Acid (mist, vapors, etc) *Control Method Code: N *Control Method Description: Emission Limit 1: 0.1980 Emission Limit 1 Unit: LB/H Emission Limit 1 Avg. Time/Condition: SULFURIC ACID MIST

Emission Limit 2: 0.5300 Emission Limit 2 Unit: T/Y R Emission Limit 2 Avg. Time/Condition: SULFURIC ACID MIST

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

3/6/2010