SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056

EMISSION RATES AND PERMIT REPRESENTATIONS

1. This permit covers only those sources of emissions listed in the attached table entitled

“Emission Sources - Maximum Allowable Emissi on Rates,” (MAERT) and those sources are limited to the emission limits and other conditions sp ecified in that attached table. This permit authorizes start-up, shutdown, and maintenan ce (SSM) activities which comply with the emission limits in the MAERT and the opacity limit of Special Condition No.11.

2. Emission limits are based upon representations in the permit application July 27, 2005 as subsequently updated.

FEDERAL APPLICABILITY

3. The pulverized coal (PC) boilers, identifie d as emission point numbers (EPN) E-OGU1 and E-OGU2, shall comply with applicable requirements of EPA regulations in Title 40 Code of Federal Regulations Part 60 ( 40 CFR Part 60), Standards of Performance for New Stationary Sources, Subpart A, Genera l Conditions, and Subpart Da, Standards of Performance for Electric Utility Steam Generating Units.

4. The auxiliary boilers, identified as EPN E-OGAB, shall comply with the applicable requirements of 40 CFR

A. Part 60, Subpart A, and Subpart Db, St andards of Performance for Industrial, Commercial, and Institutional Boilers; and

B. Part 63, Subpart A, and Subpart DDDDD, National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, a nd Institutional Boilers and Process Heaters.

5. The stationary diesel engines, identified as EPNs E-OGEG and E-OGFP, shall comply with:

A. The applicable requirements of 40 CFR Pa rt 60, Subpart A, and Subpart IIII, Standards of Performance for Stationary Compression Ignition Internal Combustion Engines, as adopted.

B. The initial notification requirements of 40 CFR § 63.6645(d), as specified in 40 CFR Part 63, Subpart ZZZZ, National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines, § 63.6590(b)(1)(I).

6. The lignite processing, storage and conveying f acilities, identified in the following Table, shall comply with the applicable requirements of 40 CFR Part 60, Subpart A, and Subpart Y, Standards of Performance for Coal Preparation Plants.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 2

Lignite Handling Facilities Subject to NSPS Subpart Y

Facility Facility

Identification

Number Emission

Points EPNs

Railcar Unloading Building F-OGLT1 Vents (2) E-OGLTHV1

E-OGLTHV2

Track Hoppers F-OGLT2 Vent E-OGLTHBV

No. 2 Transfer

Conveyor F-OGLCFT3 Vent E-OGLCFT3V

Lignite Silo 1 F-OGLSILO1 Vent (Fabric filter) E-OGSILO1

Lignite Silo 2 F-OGLSILO2 Vent (Fabric filter) E-OGSILO2

Silo and Emergency

Stockout Reclaim F-OGSSPR Vent E-OGSSPRV

Crusher House F-OGLT9

F-OGCFT9

F-OGCFT11 thru 13 Vents (2) E-OGCHV1

E-OGCHV2

Crusher House Surge Bin F-OGCFT10 Vent (Fabric Filter) E-OGCHBFV

Sample House F-OGSH Vent E-OGSHV

Surge Bin

Transfer Tower -

External Structure F-OGCFT18 thru 22 Vent E-OGSBTTV

Surge Bin Transfer

Tower - Bin F-OGCFT17

F-OGCFT18 Vent (Fabric Filter) E-OGSBTTBV

Transfer Tower 1A F-OGCFT23 Vent E-OGTT1AV

Unit 1 South Side

Tripper House F-OGU1SS Vent (Fabric Filter) E-OGU1SSV

Transfer Tower 1B F-OGCFT24 Vent E-OGTT1BVSPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 3

Facility Facility

Identification

Number Emission

Points EPNs

Unit 1 North Side Tripper House F-OGUINS Vent (Fabric Filter) E-OGU1NSV

Transfer Tower 2A F-OGCFT26 Vent E-OGTT2AV

Unit 2 South Side Tripper House F-OGU2SS Vent (Fabric Filter) E-OGU2SSV

Transfer Tower 2B F-OGCFT25 Vent E-OGTT2BV

Unit 2 North Side Tripper House F-OGU2NS Vent (Fabric Filter) E-OGU2NSV

7. The limestone processing, storage and conveying facilities identified in the following table, shall comply with the applicable requireme nts of 40 CFR 60, Subpart A, and Subpart OOO, Standards of Performance for Non-metallic Mineral Processing Plants.

Limestone Processing Facilities Subject to NSPS Subpart OOO

Facility Facility

Identification

Number Emission

Points EPNs

Railcar Unloading

Track Hopper F-OGL28 Vent E-OGLSTHV

Limestone Storage Shed F-OGLT29 thru 35 Vents (3) E-OGLSSV1

E-OGLSSV2

E-OGLSSV3

Limestone Storage

Reclaim Belts F-OGLSPRV Vent E-OGLSPR

Limestone

Preparation Building F-OGLT36 Vents (3) (Fabric Filter) E-OGLSSB1V

E-OGLSSB2V

E-OGLSSB3VSPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 4

8. If any condition of this permit is more stringent than the regulations identified in Special Conditions No. 3 through 7, then for the purposes of complying with this permit, the permit shall govern and be the standard by which compliance shall be demonstrated.

FUEL SPECIFICATIONS, OPERATING LIMITATIONS, PERFORMANCE STANDARDS, AND

CONSTRUCTION SPECIFICATIONS

9. Fuel fired in the PC Boilers, EPNs E-OGU1 and E-OGU2, shall be limited to:

A. Texas lignite with:

(1) Sulfur content not to exceed a 12- month rolling average of 2.0 pound per million British thermal units (lb/MMBtu) of heat input and with the heat input based on fuel higher heating value (HHV); and

(2) trace metal concentrations not to exceed, on a 12-month rolling average basis, the concentration limitations identified in Attachment A of this permit.

B. Pipeline quality natural gas. (12/08)

C. Use of any other fuel will require prior approval from the permitting authority.

D. Upon request by the Executive Director of the Texas Commission on Environmental Quality (TCEQ) or any air pollution contro l program having jurisdiction, the holder of this permit shall provide a sample and/or an anal ysis of the fuel fired in the PC Boiler, or shall allow air pollution control agency representatives to obtain a sample for analysis.

10. Each PC Boiler, EPNs E-OGU1 and E-OGU2, sh all be limited to a maximum heat input of 8,970 MMBtu/hr, averaged over a calendar month, based on the HHV of the fuel fired.

11. Opacity of emissions from EPNs E-OGU1 and E-OGU2 must not exceed 10 percent, averaged over a six-minute period, except for those periods described in

Title 30 Texas Administrativ e Code § 111.111(a) (1)(E) [30 TAC § 111.111(a)(1)(E)], 40 CFR Part 60, § 60.11(c), or as otherwise allowed by law.

12. Emissions from the PC Boilers, EPNs E-OGU1 and E-OGU2, shall not exceed the performance standards in the following tables. The performan ce standards of the tables shall apply at all times except during periods of start-up and shut down as identified in the permit application. (12/08)SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 5

A. Standards demonstrated by Continuous Emissions Monitoring Systems (CEMS)

Pollutant 1 Performance Standard (lb/MMBtu) 2 Compliance Averaging

Period

NO

x 0.080 30-day rolling

SO 2 0.192 30-day rolling

CO 0.34 12-month rolling

Hg 0.0000092 12-month rolling

PM/PM 10

(fronthalf catch) 0.015 3-hour

not lb/MMBtu:

NH 3 10 ppm hourly

NH 3 4 ppm 12-month rolling

B. Standards demonstrated by Reference Method 3 (RM) testing

Pollutant 1 Performance Standard (lb/MMBtu) 2 Compliance Demonstration

Period

PM/PM 10 total 0.040 4 annual

VOC 0.0045 annual

H 2 SO 4 0.0122 annual

HCl 0.0061 annual

HF 0.0036 annual

Notes:

1 NO

x - nitrogen oxides PM - particulate matter H 2 SO 4 - sulfuric acid mist

SO 2 - sulfur dioxide PM 10 - PM  10μm in diameter HCl - hydrogen chloride

CO - carbon monoxide NH 3 - ammonia HF - hydrogen fluoride Hg - mercury VOC - volatile organic compoundsSPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 6

2 lb/MMBtu - pounds of emissions per million Btu of heat input. Heat input is based on fuel

HHV.

ppm - parts per million by volume, dry, adjusted to 6 percent oxygen (O 2 ).

3 RM - EPA Reference Methods, based on the av erage of three stack sampling runs to be

conducted as prescribed by Special Conditions No. 32 and 39.

4 Total PM/PM 10 including back-half (condensibles) catch of sampling train.

13. A. In the event that a CEMS for NO

x is not operating for a peri od longer than one hour, the permit holder shall operate at no less than the a mmonia feed rate to the selective catalytic reduction (SCR) system that was established during a successful initial performance test (adjusted for load) or at the feed rates that were measured prior to the loss of the CEMS (adjusted for load), whichever feed rates are higher.

B. In the event that a CEMS for SO 2 is not operating for a period longer than one hour, the permit holder shall operate at no less than the reagent feed rate to the flue gas desulfurization system that was establishe d during a successful initial performance test (adjusted for load) or at the feed rates that were measured prior to the loss of the CEMS (adjusted for load), whichever feed rates are higher.

14. The holder of this permit shall operate the PC boilers and associated air pollution control equipment in accordance with good air pollution c ontrol practice to minimize emissions during SSM, by operating in accordance with a written SSM plan. The plan shall include detailed procedures for review of relevant operating pa rameters of the PC boiler and associated air pollution control equipment during SSM to make adjustments and corrections to reduce or eliminate any excess emissions. The plan sha ll also address readily foreseeable start-up scenarios, including hot start-ups, when the operation of the boiler is only temporarily interrupted, and provide for appropriate review of the operational condition of the boiler before initiating start-up. In addition, the plan shall address procedures for minimizing opacity and PM emissions while conducting on-line maintenan ce of the PC boiler or its emission control equipment.

15. The PC Boiler stacks, EPNs E-OGU1 and E-OGU2, will be approximately 450 feet tall with an exit diameter of 34.1 feet. Stack sampling ports and platform(s) shall be constructed on the stack as specified in the attachment entitled “Chapter 2, Stack Sampling Facilities,” or an alternate design may be required at a later date if determined necessary by the appropriate TCEQ Regional Director or the Manager of the TCEQ Austin Enforcement Division, Compliance Support Team. Adequate advance notice shall be provided by TCEQ if an alternate design is required.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 7

16. The auxiliary boilers, with combined stack s identified as EPN F-OGAB, shall meet the following specifications:

A. Emissions of NO

x shall not exceed 0.10 lb/MMBtu, averaged over 3 hours of operation.

B. Opacity of emissions shall not exceed 10 percent.

C. Fuel shall be limited to No. 2 fuel oil.

D. Operation of each boiler shall be limited to a maximum of 10 percent annual capacity factor. Capacity factor is the ratio between the actual heat input from all fuels during a period of 12 consecutive calendar months and th e potential heat input from all fuels had the boiler been operated for 8,760 hours duri ng that 12-month period at the maximum design heat input capacity.

17. The 1,444 hp emergency diesel fuel-fired electri c generator, identified as EPN E-OGEG, shall meet the following specifications:

A. (1) The engine shall be certified by the manufacturer to comply with the corresponding EPA Tier 2 emission specifications for nonr oad diesel engines rated more than 560 kW, promulgated in 40 CFR 89, Control of Emissions from New and In-use Nonroad Compression-Ignition Engines.

(2) Condition A.(1) does not apply if at the time of purchase of the engine, the total installed cost of the Tier 2 compliant engi ne is more than 5 percent higher than the total installed cost of a corresponding Tier 1 compliant engine. In such case, the engine shall be certified by the manufact urer to comply with the corresponding EPA Tier 1 emission specifications for nonroad engines rated more than 560 kW, promulgated in 40 CFR 89, control of Em issions from New and In-Use Nonroad Compression-Ignition Engines. The holder of this permit shall not circumvent the intent of this provision by purchasing the engine at a date earlier than needed to assure timely site installation.

B. Fuel shall be limited to diesel engine fuel containing no more than 500 ppm by weight sulfur. Purchased diesel engine fuel sha ll comply with the EPA standards for nonroad diesel fuel in 40 CFR 80, Regula tion of Fuels and Fuel Additives , in effect at the time of purchase.

C. Operation shall be limited to a maximum of 876 hours per year.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 8

18. The 450 hp emergency diesel fuel-fired fire water pump, identified as EPN OG-FP, shall meet the following specifications:

A. (1) The engine shall be certified by the manufacturer to comply with the corresponding EPA emission specifications for nonroad dies el engines in the size range between 225 kW and 600 kW, promulgated in 40 CFR 89, Control of Emissions from New and In-use Nonroad Compression-Ignition Engines, in effect at the time of purchase. The holder of this permit shall not circumvent the intent of this provision by purchasing the engine at a date earlier than needed to assure timely site installation.

(2) If there are no Underwriters Laboratories (UL) listed fire pumps that meet the nonroad engine emission specifications in effect at the time of purchase, then the engine shall be certified by the manufacturer to comp ly with the highest Tier EPA nonroad emission specification for which the engine is UL listed (or no Tier specification, if no UL listed fire pump meets such a specification).

(3) Conditions A.(1) and A.(2) shall not apply if the emission specification requirement is shown to result in greater than 5% increase in total installed cost.

B. Fuel shall be limited to diesel engine fuel containing no more than 500 ppm by weight sulfur. Purchased diesel engine fuel sha ll comply with the EPA standards for nonroad diesel fuel in 40 CFR 80, Regula tion of Fuels and Fuel Additives , in effect at the time of purchase.

C. Operation shall be limited to a maximum of 500 hours per year unless a greater number of hours of operation is required to fight a fire.

CHEMICAL AND FUEL STORAGE

19. Anhydrous ammonia storage is subject to the following requirements.

A. Maximum on-site storage is limited to the two pressure tanks identified in the permit application, each with maximum volume of 30,000 gallons.

B. The tanks shall be located within

(1) a physical barrier to vehicular traffic; and

(2) a containment system which is capable of holding the entire volume of material

stored.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 9

C. Piping and unloading points shall be pr otected from impact by falling objects.

D. Each tank vent valve shall be equipped with an alarm which will no tify personnel that the relief valve has opened.

E. Tanks shall be vapor balanced to the transport vessel during all tank filling operations. The vapor return line shall be purged back to either the transport vessel or the storage tank after every tank loading operation and prior to disconnection of the line. Interlocks shall be installed so that the unloading pump will not run unless the vapor return line to the transport vessel is connected.

F. All plant personnel assigned to anhydrous a mmonia injection operati ons shall participate in continuing training in safety guidelines fo r the handling of anhydrous ammonia, to be conducted no less frequently than once every two years: new and transferred personnel shall complete all initial training required for their specific assignments prior to assumption of their new duties.

G. Overhead activity involving the lifting of heavy equipment above the anhydrous ammonia storage area shall not be permitted.

H. The holder of this permit shall maintain a complete emergency response plan at the plant

site that describes the course of action to be taken by personnel in the event of an anhydrous ammonia tank or line rupture, or a severe anhydrous ammonia leak. This plan shall include water-mitigation methods, notifi cation of the proper civil authorities, and any potentially affected residences and any ot her appropriate organizations. This plan shall be made available upon request to repres entatives of the TCEQ or any local program having jurisdiction.

20. Audio, olfactory, and visual checks for ammonia leaks shall be made on ce per shift within the operating area.

A. No later than one hour following detecti on of a leak, plant personnel shall take the following actions:

(1) Locate and isolate the leak.

(2) Stop the leak by bypassing the leaking equipm ent or taking equipment out of service.

B. If the leaking equipment cannot be repaired or replaced within 6 hours, use clamping procedures to prevent the leak until replacement or repair can be performed.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 10

21. In any consecutive 12-month period, the holder of this permit shall not receive more than the following quantities of diesel fuel:

Tank Number 12-month throughput (Gallons)

E-OGFOST 3,620,000

E-OGEGDST 49,972

E-OGFPDST 49,972

MATERIAL HANDLING OPERATING LIMITATIONS AND STANDARDS

22. Annual coal received at the Oak Grove site shall not exceed 11.82 million tons per calendar year. Coal shall be delivered at the rail car unloading building which shall be partially enclosed as described in the application.

23. If spontaneous combustion occurs in a coal st ockpile, plant personnel will begin efforts as soon as possible to extinguish or eliminate the fi re, except when extinguishing the fire may unduly jeopardize the safety of plant personnel and equipment, or may cause the fire to spread, in which case the stockpile fire may be permitted to burn itself out.

24. A watering truck and/or the coal yard watering system shall be used to minimize dust emissions from the active coal storage pile area as necessa ry. Surface crusting agents or like chemicals shall be used to minimize dust emissions from the inactive coal storage pile area.

25. Plant roads shall be paved with a cohesive hard surface which can be cleaned by sweeping or washing; or sprinkled with water and/or surf ace crusting agents as necessary to maintain compliance with all TCEQ rules and regulations.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 11

26. Material open storage area footprints shall be limited as follows:

Source EPN Area, acres (sq.ft)

Lignite Stackout Pile E-OGLSPF 0.32 (13,940 ft 2 )

Lignite Dead Storage Pile E-OGLDSPF 7.70 (335,410 ft 2 )

Local landfill area - active working face* E-OGLDLF 0.80 (34,850 ft 2 )

Local landfill area - inactive exposed surfaces* E-OGLDLF 5.00 (217,800 ft 2 )

Remote landfill area - active working face* E-OGRDLF 0.80 (34,850 ft 2 )

Remote landfill area -

inactive exposed surfaces* E-OGRDLF 5.00 (217,800 ft 2 )

*footprint is not limited to a specific location

27. All conveyors shall be covered, enclosed, partially covered, or partially enclosed, as represented in the application, to minimize fugitive partic ulate matter (PM) emissions. If visibility problems occur, additional controls may be requi red. Coverings and enclosures are considered abatement equipment, and should be kept in good repair.

28. Fugitive emissions from the transfer points on belt conveyors, any material handling, and the stockpile activities shall not create an off-prope rty nuisance condition. A trained observer with delegation from the Executive Director of th e TCEQ may determine compliance with this special condition by 40 CFR Part 60, Appendix A, RM 22, or equivalent. Continuous demonstration of compliance with this special condition is not required. If this condition is violated, additional controls or process changes may be required to limit visible PM emissions.

29. As determined by a certified opacity observer w ith delegation from the Executive Director of the TCEQ and according to 40 CFR 60, Appendix A, RM 9, or equivalent, opacity of emissions from any single fabric filter baghouse stack liste d in Special Condition No. 30 shall not exceed 5 percent averaged over a six-minute period. Continuous demonstration of compliance with this special condition is not required.

30. Material handling baghouses or bin vent filters , designed to meet an emission limit of 0.01 grain PM per dry standard cubic foot of exhaust, pr operly installed and in good working order, shall control PM emissions from the following sources:SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 12

Lignite transfer tower Bin vent E-OGSBTTV

Lignite tripper houses: PC Boiler 1, south side PC Boiler 1, north side PC Boiler 2, south side PC Boiler 2, north side Baghouse Baghouse Baghouse Baghouse E-OGU1SSV

E-OGU1NSV

E-OGU2SSV

E-OGU2NSV

Limestone preparation

building Bin vent

Bin vent

Bin vent E-OGLSSB1V

E-OGLSSB2V

E-OGLSSB3V

Fly ash filter separators:

Unit 1

Unit 2 Baghouse Baghouse Baghouse

Baghouse Baghouse Baghouse E-OGVS1V1

E-OGVS1V2

E-OGVS1V3

E-OGVS2V1

E-OGVS2V2

E-OGVS2V3

Fly ash Silo 1

Fly ash Silo 2 Bin vent

Bin vent

Bin vent

Bin vent

Bin vent

Bin vent E-OGFAS1V1

E-OGFAS1V2

E-OGFAS1V3

E-OGFAS2V1

E-OGFAS2V2

E-OGFAS2V3

Fly ash Silo 1 loading spout Baghouse E-OGSLS1V

Fly ash Silo 2 loading spout Baghouse E-OGSLS2VSPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 13

INITIAL DEMONSTRATION OF COMPLIANCE

31. The holder of this permit shall perform initial stack sampling and other testing to establish the actual quantities of air contaminants being em itted into the atmosphere. Unless otherwise specified in this Special Condition No. 31, th e sampling and testing shall be conducted in accordance with the methods and procedures specified in Special Condition No. 32. The holder of this permit is responsible for providing sampling and testing facilities and conducting the sampling and testing operations at his expens e. The TCEQ Executive Director or his designated representative shall be afforded the opportunity to observe all such sampling.

A. For EPNs E-OGU1 and E-OGU2:

(1) Demonstrate compliance with the performance standards of Special Condition No. 12B and the hourly em ission rates of the MAERT, applicable to normal operations, using the average of th ree one-hour stack samp ling test runs for

each contaminant.

(2) Air contaminants to be sampled and analyzed under (1) above include: nitrogen oxides (NO

x ), sulfur dioxide (SO 2 ), CO, VOC, H 2 SO 4 , HCl, HF, PM, PM 10 , NH 3 , and Hg. Diluents to be measured include O 2 or carbon dioxide (CO 2 ).

(3) Demonstrate compliance w ith the performance standards of Special Condition No. 11 applicable to normal operations, using th e average of 30 six-minute readings as provided in 40 CFR 60.11(b).

(4) Demonstrate compliance with 40 CFR 60, Subparts A and Da, for NO

x , SO 2 , PM, and opacity.

(5) Demonstrate compliance with the lb/MMBtu performance standards listed on

Attachment A and the lb/hr emission rate for lead listed on the MAERT using the average of three stack sampling test runs.

(6) Boiler load during testing shall be ma intained at maximum firing rates for the atmospheric conditions occurring during the te st as measured by millions of pounds of steam generated per hour or MW of electric generator output. If the steam generating unit is unable to operate at maximum rates during testing, then additional stack testing may be required when higher production rates are achieved. This requirement applies to hourly average emission testing and doe s not apply to 30-day average emission testing.

B. For the auxiliary boilers, EPN E-OGAB:SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 14

(1) Demonstrate compliance with the NO

x performance standard of Special Conditions No. 4B, No. 16 and the hourly NO

x and CO emission rates of the MAERT, using the average of three one- hour stack sampling test runs for each

contaminant.

(2) Demonstrate compliance with the opac ity limitation of 40 CFR 60 Subpart Db and Special Condition No. 16.

(3) Demonstrate compliance with the SO 2 emission rate of the MAERT through fuel sulfur sampling and presumed 100 percent c onversion of the fuel sulfur and emission

as SO 2

.

(4) Demonstrate compliance with the PM/PM 10 and VOC emission rates of the MAERT through operation of the auxiliary boiler within its design limitations.

C. (1) For the coal handling facilities with st ack emissions, identified in Special Condition 7, demonstrate compliance with the opacity limits of this permit and 40 CFR 60, Subpart Y.

(2) For the coal handling facilities with fugitive emissions, EPNs E-OGLSPF and E-OGLDSPF, demonstrate compliance with the opacity limits of 40 CFR 60, Subpart Y using 40 CFR Part 60, Appendix A, Reference Method 22.

D. For the limestone handling facilities with stack emissions, identified in Special Condition 8, demonstrate compliance with the opacity limits of this permit and 40 CFR 60, Subpart OOO.

E. For at least one material handling baghouse, to be selected by the Waco Regional Director of the TCEQ, or his designated representative, sample PM emissions using RM 5 testing to show compliance with the emission limit of Special Condition No. 30.

F. For the emergency generator and fi re-water pump, EPNs E-OGEG and E-OGFP, demonstrate compliance with the emission rates of the MAERT by showing compliance with the requirements of Special Condition No. 17 and 18, respectively.

G. For the cooling tower, EPN E-OGCT1, demons trate compliance with the emission rates of the MAERT by records that demonstrate that the drift eliminators are designed to limit drift as specified in the application, a nd by inspection of modules, selected by the TCEQ Regional Director or his designated re presentative, for: consistency with the specified design; flow bypassing the drift eliminators; and damage to the eliminators.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 15

H. Requests to waive testing for any pollutant specified in this condition shall be submitted to the TCEQ Office of Permitting, Remediati on, and Registration, Air Permits Division. Test waivers and alternate or equivale nt procedure proposals for New Source Performance Standards testing which must have EPA approval shall be submitted to the TCEQ Austin Compliance Support Division.

I. For each PC Boiler, sampling as required by this condition shall occur within 60 days after the particular boiler achieves the maximum fuel firing rate at which it will be operated, but no later than 180 days after initia l start-up. The first boiler operating day of 30-day average initial performance testing required by 40 CFR 60.46a(f) must commence

within this time.

TEST METHODS AND PROCEDURES

32. A. Sampling shall be conducted in accordance w ith the appropriate procedures of the TCEQ Sampling Procedures Manual , EPA Methods in 40 CFR Part 60, Appendix A and 40 CFR Part 51, Appendix M, EPA Conditional Test Me thods, and American Society for Testing and Materials (ASTM) as follows:

(1) Appendix A, Methods 1 through 4, as appr opriate, for exhaust flow, diluent, and moisture concentration;

(2) Appendix A, Method 5B or 17, modified to include back-half condensibles, for the concentration of PM;

(3) Appendix A, Method 5B or 17, for the filterable concentration of PM (front-half catch);

(4) Appendix A, Method 6, 6a, 6c, or 8, for the concentration of SO 2 ;

(5) Appendix A, Method 7E for the concentrations of NO

x and O 2 , or equivalent methods;

(6) Appendix A, Method 8 or a modified Method 8 for H 2 SO 4 ;

(7) Appendix A, Method 9 for opacity;

(8) Appendix A, Method 10 for the concentration of CO;

(9) Appendix A, Method 19, for applicable calculation methods;SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 16

(10) Appendix A, Method 22, for visual dete rmination of fugitive emissions from material

sources;

(11) Appendix A, Method 25A, modified to exclude methane and ethane, for the concentration of VOC (to measure total carbon as propane);

(12) Appendix A, Method 26 or 26A for HCl and HF;

(13) EPA Conditional Test Method 27 (CTM-027), for NH 3 ;

(14) Appendix A, Method 29 for the metals listed in Attachment A;

(15) Appendix M, Methods 201A and 202, or Appendix A, Reference Method 5, modified to include back-half condensibles, for the c oncentration of particulate matter less than 10 microns in diameter, PM 10 ;

(16) Appendix M, Methods 201A or Appe ndix A, Reference Method 5, for the filterable concentration of particulate matter less than 10 microns in diameter, PM 10 (front-half catch);

(17) ASTM D6784-02, Standard Test Me thod for Elemental, Oxidized, Particle-Bound, and Total Mercury in Flue Gas Generated fr om Coal-Fired Stationary Sources (also known as the Ontario Hydro Method), or other approved EPA methods.

(18) Any variations from those procedur es must be approved by the Executive Director of the TCEQ or his designated representative prior to sampling.

B. The TCEQ Waco Regional Offi ce shall be given notice as soon as testing is scheduled but not less than 30 days prior to sampling to schedule a pretest meeting.

(1) The notice shall include:

(a) Date for pretest meeting. (b) Date sampling will occur. (c) Name of firm conducting sampling. (d) Type of sampling equipment to be used. (e) Method or procedure to be used in sampling. (f) Projected date of commencement of the 30-day rolling average initial performance tests for SO 2 and NO

x , in accordance with 40 CFR 60.46a(f).SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 17

(2) The purpose of the pretest meeting is to review the necessary sampling and testing procedures, to provide the proper data fo rms for recording pertinent data, and to review the format procedures for submitting the test reports. The permit holder shall present at the pretest meeting the manner in which stack sampling will be executed in order to demonstrate compliance with emission standards found in this permit and 40 CFR Part 60, Subparts Da, Db, Y, and OOO.

(3) Prior to the pretest meeting, a written pr oposed description of any deviation from sampling procedures specified in permit conditions or TCEQ, EPA or ASTM sampling procedures shall be made available to the TCEQ. The TCEQ Regional Director or the TCEQ Au stin Compliance Support Division shall approve or disapprove of any deviati on from specified sampling procedures.

C. Information in the test report shall include the following data for each test run:

(1) hourly coal firing rate (in tons);

(2) average coal Btu/lb as-received and dry weight;

(3) average steam generation rate in millions of pounds per hour;

(4) average generator output in MW;

(5) daily sulfur content and heat content of the fuel measured in accordance with EPA RM 19 to show compliance with 40 CFR 60, Subpart Da;

(6) control device operating rates, includi ng SCR reagent injection and limestone injection rates; and

(7) emissions in the units of the limits of th is permit, lb/hr and lb/MMBtu, three-hour or 30-day average, as appropriate.

(8) any additional records deemed necessary during the stack sampling pre-test meeting.

D. Two copies of the final sampling report sha ll be forwarded to the TCEQ within 60 days after sampling is completed. Sampling reports shall comply with the attached conditions of Chapter 14 of the TCEQ Sampling Procedures Manual . The reports shall be distributed

as follows:SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 18

One copy to the TCEQ Waco Regional Office. One copy to the TCEQ Austin Office of Permitting, Remediation, and Registration, Air

Permits Division.

CONTINUOUS DEMONSTRATION OF COMPLIANCE

33. The holder of this permit shall install, calibrate, maintain, and operate continuous emission monitoring systems (CEMS) to measure a nd record the concentrations of NO

x , CO, and SO 2 from EPNs E-OGU1 and E-OGU2. Dilu ents to be measured include O 2 or CO 2. The

CEMS data shall be used to determ ine continuous compliance with the NO

x , CO, and SO 2 emission limitations in Special Condition No. 3 (NO

x and SO 2 ), Special Condition No. 12A, and the attached MAERT. Except as pr ovided by Special Condition No. 49, continuous compliance with the performance standards of Special Condition No. 12A shall commence on the first boiler operating day of the 30-da y initial performance testing required by NSPS Subpart Da.

A. The CEMS shall meet the design and perfor mance specifications, pass the field tests, and meet the installation requirements and the data analysis and reporting requirements specified in the applicable Performance Specification Nos. 1 th rough 9, 40 CFR Part 60, Appendix B or an acceptable alternative. If there are no applicable performance specifications in 40 CFR Part 60, Appendix B, contact the TCEQ Office of Permitting, Remediation, and Registration, Air Permits Divisi on in Austin for requi rements to be met.

B. The holder of this permit shall assure that the CEMS meets the applicable quality assurance requirements specified in 40 CFR Part 60, Appendix F, Procedure 1, or an acceptable alternative. Relative accuracy ex ceedances, as specified in 40 CFR Part 60, Appendix F, § 5.2.3 and any CEMS downtime a nd all cylinder gas audit exceedances of ±15 percent accuracy shall be reported semi annually to the appropriate TCEQ Regional Director, and necessary corrective acti on shall be taken. Supplemental stack concentration measurements may be require d at the discretion of the appropriate TCEQ Regional Director.

C. The monitoring data shall be reduced to hourly average concentrations at least once every day, using normally a minimum of four equa lly-spaced data points from each one-hour period. The individual average concentrations shall be reduced to units of the permit allowable emission rate in pounds per hour at least once every day. Pound per hour data shall be summed on a monthly basis to tons per year and used to determine compliance with the annual emissions limits of this pe rmit. If the CEMS malfunctions, then the recorded concentrations may be reduced to units of the permit allowable as soon as practicable after the CEMS resumes normal operation.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 19

D. The appropriate TCEQ Regional Office shall be notified at least 30 days prior to any required relative accuracy test audits in orde r to provide them the opportunity to observe the testing.

E. If applicable, each CEMS will be requi red to meet the design and performance specifications, pass the field tests, and meet th e installation requirements and data analysis and reporting requirements specified in the applicable performance specifications in 40 CFR Part 75, Appendix A and B, as an accepta ble alternative to paragraph A. of this

condition.

F. Each CEMS shall be operational duri ng 95 percent of the operating hours of the PC Boiler, exclusive of the time required for zero and span checks. If this operational criteria is not met for the reporting quarter, the holder of this permit shall develop and implement a monitor quality improvement pla n. The plan should address the downtime issues to improve availability and reliability. The plan should provide additional assurance of compliance including record k eeping of reagent flow rates for monitor downtime periods.

34. The holder of this permit shall install, ca librate, certify, operate, and maintain CEMS to

measure and record the filterable PM/PM 10 emissions from EPNs E-OGU1 and E-OGU2. The

CEMS data shall be used to determine conti nuous compliance with the filterable (front-half) PM emission limitations in Special Condition N o. 12A and the attached MAERT. After the initial determination of compliance, the CEMS shall be used to determine continuous compliance with the opacity limitations in Speci al Conditions No. 3 and 11. Compliance with

the PM mass emission limit will be considered to demonstrate compliance with the opacity limit; however, the TCEQ may use EPA Reference Method 9 to determine opacity at any time.

A. The PM CEMS shall meet the Federa l NSPS requirements specified in 40 CFR §§ 60.13, 60.48Da(p), 60.48Da(v), and 40 CFR Pa rt 60, Appendix B, Performance Specification 11 (PS-11). In order to demons trate compliance with PS-11, the PM CEMS shall meet the manufacturer’s design a nd performance specifications, and undergo performance evaluation testing as outlined in 40 CFR 60, § 60.13. The TCEQ Regional Director shall be notified 30 days prior to the certification.

B. A Quality Assurance Plan (QAP) shall be prepared in accordance with 40 CFR Part 60, Appendix F, Procedure 2 and adhered to follo wing the initial certification of compliance. The QAP shall be maintained to reflect changes to component technology. If requested by the TCEQ Regional Director, the holder of this permit must submit documentation demonstrating compliance with these requirements.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 20

C. The PM data shall be reduced to hourly averages in accordance with 40 CFR § 60.13(h) and PS-11, Section 6.5. The data sh all be recorded in units of lb/MMBtu and lb/hr at least daily. Pounds per hour data shall be summe d on a monthly basis to TPY and used to determine compliance with the annual emission limits of this permit.

D. The TCEQ Waco Regional Office shall be no tified at least 30 days prior to any required relative response audit or response correlation audit.

E. Recertification, if required, shall be ba sed on the requirements of 40 CFR Part 60, Appendix B, PS-11 in effect at the time of initial certification, or as approved by the TCEQ Regional Director. (12/08)

35. The holder of this permit shall install, calibra te, operate, and maintain CEMS to measure and

record the concentration of NH 3 from EPNs E-OGU1 and E-OGU2. The NH 3 concentrations shall be corrected and reported in accordance w ith Special Condition No. 12A. The CEMS data

shall be used to determine c ontinuous compliance with the NH 3 performance specifications in Special Condition No. 12A and the MAERT. Any other method used for measuring NH 3 slip shall require prior approval from the TCEQ W aco Regional Office, with consultation between the Regional Office and the TCEQ Austin Air Permits Division.

36. The holder of this permit shall install, calibra te, operate, and maintain CEMS or sorbent trap monitoring system to measure and record the concentration of mercury from EPNs E-OGU1 and E-OGU2, as prescribed by 40 CFR Parts 60 and 75. The CEMS or sorbent trap data shall be used to demonstrate continuous compliance with the emission limitations of Special Condition No. 12A and the MAERT.

37. If any emission monitor fails to meet specified performance, it shall be repaired or replaced as soon as reasonably possible.

38. After the initial demonstration of compliance, on-going compliance with the non-mercury metal performance standards identified in Attachment A of this permit, the emission rates for lead in the MAERT, and the sulfur content of Special Condition No. 9 will be demonstrated by testing

of the as-fired coal at leas t once per calendar quarter for compliance with the non-mercury

metal coal concentration limits in Attachment A. The HHV of the coal sample shall also be

measured.

39. After the initial demonstration of complian ce, on-going stack sampling of EPNs E-OGU1 and

E-OGU2 for H 2 SO 4 , HCl, HF, VOC, total PM/PM 10 , or coal concentration testing, shall be used to demonstrate continuous compliance and shall meet the following specifications:SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 21

A. Stack sampling shall be performed once annually during periods of normal operation, except as follows:

(1) If the annual test does not establish co mpliance with a performance standard of Special Condition No. 12B, the holder of this permit may conduct additional tests during the year to be averaged with the previous test(s) to demonstrate compliance; or

(2) if, after two years of stack sampling, th e average of the two annual stack sampling results for a pollutant is less than 70 percen t of the applicable performance standard identified in Special Condition No. 12B, then compliance stack sampling for such pollutant may be conducted once every three years.

B. Sampling required in (A.) of this Special Condition shall demonstrat e compliance with the performance standards of Special Condition N o. 12B and the lb/hr emission limits of the MAERT applicable to normal operations.

C. Sampling required in (A.) of this Special Condition shall be conducted in accordance with the methods, procedures, and notification prot ocol specified in Special Condition No. 32.

D. Ongoing compliance with the H 2 SO 4 , HF, HCl, VOC, and PM/PM 10 tons per year emission rates in the MAERT shall be demonstrated by calculating rolling 12-month annual emissions from emission factors (l b/MMBtu, HHV) obtained from the sampling required in (A.) of this condition and the monthly total heat input (MMBtu, HHV) from

coal.

40. Compliance with the following emission rates in the MAERT, applicable to periods of start-up and shutdown, will be demonstrated as follows:

A. Compliance with the lead and PM and PM 10 (filterable and total) emission rates in the MAERT applicable during start-up and shutdown will be demonstrated if the recorded pressure drop across the baghouse meet ma nufacturer guidelines for proper operation during start-up and shutdown.

B. Compliance with the VOC emission rate in the MAERT applicable during start-up and

shutdown will be demonstrated if the CO em issions during start-up and shutdown are in compliance with the CO emission rate in the MAERT for start-up and shutdown.

C. Compliance with the H 2 SO 4 , HF, and HCl emission rates in the MAERT for start-up and

shutdown will be demonstrated if the SO 2 emissions during start-up and shutdown are in compliance with the SO 2 emission rate in the MAERT for start-up and shutdown.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 22

41. Following the initial demonstration of comp liance, ongoing compliance with the emission

limits for the sources and emission limitations lis ted in this condition shall be through source operation in accordance with manufacturer’s sp ecifications, or in accordance with written procedures that are shown to maintain operating conditions necessary for emission compliance. The Executive Director of the TCEQ or his desi gnated representative may also require direct measurement of emissions using the sampling methods and procedures specified in Special Condition No. 32 to establish complia nce with the limitations, in which case the sampled emission rate will be used to determine compliance.

A. The auxiliary boilers, EPN E-OGAB, emissi on limitations of Special Condition No. 16A and 16B, and the MAERT.

B. The emergency diesel engines, EPNs E- OGEG and E-OGFP, emission limitations in the

MAERT.

42. Following the initial demonstration of complia nce, ongoing compliance with the emission rates in the MAERT for the cooling tower, EPN E- OGCT1, will be based on annual inspection of modules, and repair as necessary to maintain drif t eliminator structural integrity and minimize bypassing of flow around drift eliminators.

43. Following the initial demonstration of complia nce, ongoing compliance with the emission rates in the MAERT for the coal, limestone and flya sh material handling baghouses and bin vents will be demonstrated by annual opacity tes ting using RM 9 for EPNs identified in Special Conditions No. 6 and 7, and RM 22 for EPNs E-OGLSPF, E-OGLDSPF, E-OGLDL,

and E-OGRDL. The Executive Dir ector of the TCEQ or his designated representative may also require sampling conducted in accordance with the methods and procedures specified in Special Condition No. 32 to direc tly measure the lb/hr emission rate, in which case the sampled

lb/hr emission rate will be used to determine co mpliance with the applicable emission rate in

the MAERT.

44. Compliance with the emission rates in the MAERT for the fuel storage tanks, EPNs E-OGFOSTV, E-OGEGDST, and E-OGFPDST , will be demonstrated by compliance with Special Condition No. 21.

RECORDKEEPING REQUIREMENTS

45. The following records shall be kept at the plant for the life of the permit. All records required in this permit shall be made available at the request of personnel from the TCEQ, the EPA, or any air pollution control agency with jurisdiction.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 23

A. A copy of this permit.

B. Permit application dated July 27, 2005, and s ubsequent representations submitted to the TCEQ.

C. A complete copy of the testing reports and records of the initial air emissions performance testing completed pursuant to the Initial Demonstration of Compliance.

46. The following records shall be kept for a minimu m of five years after collection and shall be made immediately available upon request to repres entatives of the TCEQ, the EPA, or any local air pollution control program having jurisdiction. Records shall be legible and maintained in an orderly manner. The following records shall be maintained:

A. Continuous emission monitoring data for SO 2 , NO

x , CO, PM/PM 10 and diluent gases,

O 2 or CO 2 , from CEMS to demonstrate compliance with the emission rates listed in the MAERT and performance standards listed in th is permit for pollutant s that are monitored by CEMS. Data retention at intervals less th an one hour is not required. Records should identify the times when emissions data have been excluded from the calculation of average emission rates because of start- up, shutdown, maintenance, and malfunction along with the justification for excluding data. Records should also identify factors used in calculations that are used to demonstrate compliance with emissions limits and performance standards. (12/08)

B. Files of all CEMS quality assurance m easures, calibration checks, adjustments and maintenance performed on these systems. (12/08)

C. Steam turbine generator hourly gross electri cal output in MW, incl uding identification of shutdown intervals, for compliance with output based performance specifications of this permit.

D. Written coal analysis for all coal received from each coal supplier to show compliance

with the sulfur and trace metal concentration limits of this permit, and written analysis provided by fuel oil and diesel fuel suppliers to show compliance with the sulfur content limitations of this permit.

E. Average coal feed rate to the PC Boile r in pounds per hour and the corresponding average heat input (HHV) in MMBtu/hr, based upon an average over each calendar month.

F. Ammonia feed rate and sorbent feed ra te established during a successful initial performance test to fulfill the requirements of Special Condition No. 13.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 24

G. Hours of operation of the emergency genera tor, emergency fire wa ter pump, and auxiliary boilers to show compliance with the hourly operating limitations of this permit.

H. Tons of coal received at the site m onthly to show compliance with the throughput requirements of this permit.

I. The amount of fuel received for st orage in EPNs E-OGFOSTV, E-OGEGDST, and

E-OGFPDST and the consecutive 12-month total of fuel received for each source to show compliance with the throughput requirements of this permit.

J. Records of cleaning and maintenance performed on abatement equipment, including records of replacement maintenance performed on baghouses and conveyors. A log should be kept with descriptions of the ac tivity performed and the time period over which it was performed.

K. Records required to show compliance with 40 CFR part 60, Subparts Da, Db, Kb, Y, and OOO, including records of required reporting.

L. Records of daily road maintenance fo r dust control to show compliance with Special Condition No. 25.

M. Records of audio, olfactory, and visual ch ecks for ammonia leaks and repairs to show compliance with Special Condition No. 20.

N. Records of all venting of the anhydrous a mmonia storage tanks to show compliance with Special Condition No. 19.

O. Required stack sampling results or other air em issions testing (other than CEMS data) that may be conducted on units authorized under this permit after the initial demonstration of compliance testing of this permit. (12/08)

REPORTING

47. The holder of this permit shall submit to the TCEQ Waco Regional Office quarterly reports as described in 40 CFR § 60.7. Such reports are required for each emission unit which is required to be continuously monitored pursuant to this permit.SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 25

AS-BUILT INFORMATION

48. The holder of this permit shall submit to th e TCEQ Waco Regional Office and the TCEQ Air Permits Division change pages to the permit application reflective of the final plans and engineering specifications on the PC Boilers, a uxiliary boilers, emergency engines, and other sources, including their respective control equipment, no later than 30 days before initial start-up of the PC Boilers. This information shall include:

A. All TCEQ Tables in the permit appli cation, updated with manufacturer and other specified data.

B. Revised plot plans and equipment drawings as required to reflect the constructed facility.

C. Manufacturer’s certification of emissions for the diesel engines and if applicable, cost information to verify compliance with the emission Tier requirements of this permit.

D. Identification of any maximum inputs of ra w materials for the as-built facility, and any diesel fuel sulfur or engine manufacturer’s emission specification that is lower than the values represented in the permit applicati on and used for calculating or establishing emissions. Accompanying this information shall be a request for permit alteration. The TCEQ shall alter the permit special conditions and MAERT to reflect any such reduction in emissions. Increases in allowable emission rates require a permit amendment before construction begins.

MITIGATION STUDIES - NO

x , MERCURY AND AMMONIA

49. For each PC boiler, if the perm it holder is unable to demonstrate compliance with the PC Boiler performance standards identified in Special Condition No. 12A for the control of NO

x , NH 3 or Hg within 180 days of initial start-up, then the permit holder may request additional time for an emissions study to mitigate emissions from the unit. Mitigation studies may be requested by the permit holder to evaluate and implement additional efforts to mitigate the emissions of

NO

x , NH 3 , or Hg. Exceedances of an NO

x , NH 3 , or Hg emission limit that occur before or during an approved mitigation study are not a vi olation of the emission limit or performance

standard set forth for those contaminants in this permit as long as the owner or operator maintains and operates the equipment and control equipment at all times in a manner consistent with good practice for minimizing emissions. Th e following conditions shall be met for the

studies:SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 26

A. Prior to the initiation of mitigation studies, a protocol shall be developed and approved by the Executive Director of the TCEQ. The prot ocol shall include at a minimum a proposed duration of the study period and an explanation of control efforts that will be evaluated. Additionally, the protocol will include a descri ption of the specific testing that will be used to evaluate emissions during the mitig ation study. All stack testing done for this study shall be coordinated with the TCEQ Waco Regional Office.

B. A report summarizing the results of the m itigation study shall be submitted to the TCEQ Air Permits Division and TCEQ Waco Regional Office within forty-five (45) days after the completion of the individual mitigation st udy. This report shall include a summary of the effort utilized to mitigate emissions and the resulting emission rates measured during the study, as well as a listing of actions that will be undertaken by the permit holder to achieve the performance standard listed in Special Condition No. 12.

C. All mitigation studies shall be completed w ithin 12 months of the initial demonstration of compliance stack testing.

NO

x OPTIMIZATION

50. During the two years of operation following the initial demonstration of compliance testing of the first PC boiler placed into operation, the permit holder will conduct a study of the operational capability of the SCR system at emission levels below 0.08 lb NO

x /MMBtu to determine the lower sustainable emission rate average over a thirty day averaging period. Factors to be considered in the study include: the demonstrated NO

x removal efficiency of the catalyst at the end of the scheduled catalyst cy cle of replacement; the ab ility of the SCR system to operate at lower levels without adverse effect on the electric generating unit capacity, reliability, and availability; and ot her engineering, operational or environmental factors such as ammonia or CO emissions, or detached plumes. W ithin forty-five days after the end of the twoyear operational period, the permit holder shall submit a written report of the results of the study and a request to alter th e permit to lower the 0.08 lb NO

x /MMBtu limit of Special Condition 12A if the study demonstrates that a lower rate is justified based on SCR performance with typical and expected maintenance and operational effects.

Dated December 9, 2008SPECIAL CONDITIONS

Permit Numbers 76474 and PSD-TX-1056 Page 27

Attachment A Non-mercury Metal Concentrations in C oal and Emission Performance Standards

Constituent Annual Average Coal Concentration (ppmw) Emission

Performance Standard (lb/MMBtu)

Beryllium 2.0 0.000011

Lead 6.4 0.000029

Arsenic 4.7 0.000027

Cadmium 0.20 0.0000017

Vanadium 37 0.00018

Nickel 9.9 0.000052

Silver 0.20 0.00000066

Barium 213 0.0010

Chromium 18 0.000049

Copper 32 0.000039

Manganese 169 0.0011

Antimony 1.1 0.0000043

Selenium 7.6 0.000029

Zinc 18 0.00016

Boron 252 0.00054