INFORMATION RELATIVE TO
THE DRAFT TITLE V OPERATING PERMIT
May 18, 2026

GENERAL FACILITY INFORMATION
Facility Name:  Leaf River Energy Center LLC, Leaf River Energy Center
Facility Address:  County Road 5, Stringer, MS  39481    
County: Smith
SIC Code(s): 4922
NAICS Code(s): 221210  

APPLICATION SUMMARY 
Permit No.: 2500-00085
Permit Action:  Renewal with Modification
Permit Folder: PER20230001
Application Receipt Date: 
Application Deemed Complete:
CBI Submitted?: No	NSPS (Part 60): A, Dc, JJJJ, IIII, KKKKa
NESHAP (Part 61): N/A
NESHAP (Part 63): A, ZZZZ
112(r) / RMP: N/A
Other: N/A	
  
FACILITY DESCRIPTION
Leaf River Energy Center, LLC, (LREC) is designed for injecting and storing natural gas in salt caverns and for withdrawal of stored gas from the caverns for delivery to pipelines. The facility operates under SIC code 4923 and is designed for injection, storage, and the withdrawal of pipeline grade natural gas in four (4) salt caverns.  

The facility currently operates six (6) natural gas-fired reciprocating compressor engines each utilizing an oxidation catalyst for emissions control, one (1) diesel-fired emergency generator engine, five (5)  natural gas-fired emergency generator engines, two (2) gas glycol dehydration still vents, two (2) natural gas-fired glycol reboilers each utilizing a thermal oxidizer for emissions control, two (2) line heaters, five (5) truck loading areas, as well as, numerous storage tanks qualifying as insignificant activities and fugitive emissions. 

TITLE V PROGRAM APPLICABILITY BASIS
The facility’s potential-to-emit (PTE) exceeds the Title V major source threshold of 100 tons per year (tpy) for each of the following criteria air pollutants: Nitrogen Oxides (NOx), Carbon Monoxide (CO). The facility’s potential-to-emit hazardous air pollutants (HAPs) does not exceed the Title V major source thresholds of 25 tpy of total HAPs or 10 tpy for any individual HAPs.

Facility-Wide Potential-to-Emit Summary1
Pollutant	PTE Emissions (tons/yr)	
Particulate Matter (TSP)	15.28	
PM10	15.28	
PM2.5	15.28	
Sulfur Dioxide (SO2)	2.33	
Nitrogen Oxides (NOx)	248.76	
Carbon Monoxide (CO)	163.82	
Volatile Organic Compounds (VOC)	100.23	
Total Reduced Sulfur (TRS)	0	
Lead	0	
CFC/HCFC	0	
Total HAP	16.82	
Formaldehyde	9.78	
1 The PTE emissions reflect any emission limits or enforceable restrictions included in the proposed permit.

PREVENTION OF SIGNIFICANT DETERIORATION (PSD) APPLICABILITY
The facility is not one of the 28 categorical facilities listed in 40 CFR 52.21(b)(1)(i)(c)(iii); therefore, the PSD threshold for a major source is 250 tpy. Following installation of the proposed emission sources, the facility’s status as an existing minor PSD source will not change. 

FACILITY MODIFICATIONS AND/OR PERMIT CHANGES
The LREC currently houses natural gas compression and associated facilities necessary for gas storage and midstream collection and distribution. With the proposed modification, LREC intends to increase its underground salt cavern natural gas storage capacity by 17.62 billion standard cubic feet (Bscf) and its deliverability by 0.50 Bscf per day to meet customer demand. This additional storage volume will require the installation of two (2) new gas-powered centrifugal compressors (proposed as Emission Points AA-045 and AA-046) with a total of 27,050 horsepower (hp) at the facility, including enclosures, ancillary facilities, and equipment. The facility is also installing one (1) new 1,004 HP Caterpillar G3512 four-stroke lean-burn (4SLB) spark ignition (SI) natural gas-fired emergency generator engine (proposed as Emission Point AA-047)

Additionally, the LREC installed the following sources via a February 25, 2026, 502(b)(10) operational flexibility change, consisting of the following:
1.	Replacement of Emission Point AA-009 with a new 2.75 MMBTU/hr reboiler (proposed as Emission Point AA-049);
2.	Replacement of Emission Point AA-010 with a new 2.75 MMBTU/hr reboiler (proposed as Emission Point AA-050);
3.	Replacement of two (2) thermal oxidizers (Emission Points AA-013 and AA-014) with one (1) new 2.0 MMBTU/hr thermal oxidizer (proposed as Emission Point AA-051);
4.	Installation of a new 750 MMSCFD glycol dehydration unit (proposed as Emission Point AA-052).

COMPLIANCE ASSURANCE MONITORING (CAM) APPLICABILITY
40 CFR Part 64 specifies the requirements for CAM.  The general applicability of this rule can be found in 40 CFR 64.2 and requires a Title V source to comply with the CAM requirements if all three of the following criteria are met for a pollutant-specific emission unit (PSEU):

1.	The unit is subject to an emission limitation or standard for a regulated air pollutant other than exemptions under 40 CFR 64.2(b)(1);
2.	The unit uses a control device to comply with the standard; and
3.	The unit has pre-control emissions exceeding Title V major source threshold.

The following emission units at the Leaf River Energy Center have pre-controlled emission levels above the major source threshold:
1.	Compressor engines: AA-001 through AA-007 for CO emissions.
2.	Compressor engines: AA-001 through AA-007 for formaldehyde emissions.

Emission Points AA-001 through AA-007 are subject to CO emission limits under 40 CFR Part 60, Subpart JJJJ, which was promulgated after November 15, 1990. As such, CAM is not applicable for the CO emissions from Emission Points AA-001 through AA-007. 

Leaf River has requested that the Title V operating permit include an enforceable cap for facility-wide formaldehyde emissions of 9.9 tons per year (enforced on a rolling 12-month total basis) so that the facility can remain an area source of HAP emissions. 

NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAP) APPLICABILITY
The facility is an Area Source of Hazardous Air Pollutants (HAP) since the facility does not have the potential to emit more than 25 tons per year of total HAPs or 10 tpy of any individual HAP.

40 CFR 63 Subpart ZZZZ - National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines
The Reciprocating Internal Combustion Engines (RICE) NESHAP, Subpart ZZZZ, regulates HAP emissions from RICE.

Emission Points AA-001 through AA-008, AA-039 through AA-042, and AB-026, are subject to the National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines (RICE), 40 CFR Part 63, Subpart ZZZZ.  A table denoting the model year for each engine is included below:

Model Year	2009	2012	2014	Permitted but not yet purchased or installed	2010	2012	2009	≥ 2026	
Emission Point	AA-001 through
AA-004	AA-005	AA-006 	AA-007	AA-008	AB-026	AA-039 through
AA-042	AA-047	

Emission Points AA-001 through AA-007 and AA-047 are new non-emergency spark ignition stationary RICE with a site rating greater than 500 brake HP located at an area source of HAP emissions.  As such, each engine must meet the requirements of 40 CFR Part 63, Subpart ZZZZ by meeting the requirements of 40 CFR Part 60, Subpart JJJJ, for spark ignition engines. No further requirements apply for such engines under 40 CFR Part 63, Subpart ZZZZ or the General Provisions in Subpart A.

Emission Point AA-008 is a new emergency compression ignition stationary RICE with a site rating greater than 500 brake HP located at an area source of HAP emissions.  As such, the emergency engine must meet the requirements of 40 CFR Part 63, Subpart ZZZZ by meeting the requirements of 40 CFR Part 60, Subpart IIII, for compression ignition engines.  No further requirements apply for such engines under 40 CFR Part 63, Subpart ZZZZ or the General Provisions in Subpart A.

Emission Point AB-026 is a new emergency spark ignition stationary RICE with a site rating greater than 500 brake HP located at an area source of HAP emissions.  As such, the emergency engine must meet the requirements of 40 CFR Part 63, Subpart ZZZZ by meeting the requirements of 40 CFR Part 60, Subpart JJJJ, for spark ignition engines.  No further requirements apply for such engines under 40 CFR Part 63, Subpart ZZZZ or the General Provisions in Subpart A.

Emission Points AA-039 through AA-042 are new emergency spark ignition stationary RICE with a site rating less than 500 brake HP located at an area source of HAP emissions.  As such, each emergency engine must meet the requirements of 40 CFR Part 63, Subpart ZZZZ by meeting the requirements of 40 CFR Part 60, Subpart JJJJ, for spark ignition engines.  No further requirements apply for such engines under 40 CFR Part 63, Subpart ZZZZ or the General Provisions in Subpart A.

40 CFR 63 Subpart JJJJJJ - National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers Area Sources
Since the facility is an “Area” source of HAP emissions, Leaf River is potentially subject to 40 CFR 63, Subpart JJJJJJ, and the facility’s “Industrial, Commercial, Institutional” (ICI) boilers could potentially be affected units.  Further, none of the facility’s process heaters are affected sources.  However, since the facility’s combustion boiler (Emission Point AA-015) is a “gas-fired boiler”, the unit is not subject to Subpart JJJJJJ or to any requirements in Subpart JJJJJJ.

40 CFR 63 Subpart HH
The NESHAP for Oil and Natural Gas Production Facilities establishes HAP emission limits for oil and natural gas production facilities that are major or area sources of HAP emissions. NESHAP HH specifically regulates facilities that process, upgrade, or store hydrocarbon liquids and facilities that process, upgrade, or store natural gas prior to the point at which natural gas enters the natural gas transmission and storage source category or is delivered to a final end user (40 CFR 63.760(a)(3)). The Leaf River facility clearly does not meet the criteria of 40 CFR 63.760(a)(3) because it is located after the point where natural gas enters the natural gas transmission and storage source category. As such, Subpart HH is not applicable to the Leaf River facility.

40 CFR 63 Subpart HHH 
The NESHAP for Natural Gas Transmission and Storage Facilities establishes emission limitations and operating limitations for HAP emissions from owners and operators of natural gas transmission and storage facilities that transport or store natural gas prior to entering the pipeline to a local distribution company or to a final end user, and that are major sources of HAP emissions.  The Leaf River Energy Center is an Area Source of HAP emissions; therefore, NESHAP HHH does not apply to the facility.

40 CFR 63 Subpart YYYY 
The NESHAP for Stationary Combustion Turbines establishes national emission limitations and operating limitations for HAP emissions from stationary combustion turbines located at major sources of HAP emissions, and requirements to demonstrate initial and continuous compliance with the emission and operating limitations.  The facility operates as an area source and not a major source; therefore, NESHAP YYYY does not apply to the facility.

NEW SOURCE PERFORMANCE STANDARDS (NSPS) APPLICABILITY

40 CFR 60 SUBPART Dc
The 10-MMBTUH natural gas-fired heater (Emission Point AA-015) is used at Leaf River to heat natural gas during winter months. The unit is an indirect-fired heater as it uses ethylene glycol as a heat transfer medium to heat natural gas and therefore meets the above definition of a steam generating unit. As such, this heater is subject to NSPS Subpart Dc.

Emission Point AA-015 is not subject to any emission limits under NSPS Subpart Dc because it only combusts natural gas. Per 40 CFR 60.48c(g), Leaf River must record and maintain records of either the amount of fuel combusted during each calendar month, or the total amount of fuel delivered to the property during each calendar month.

EPA has previously determined that TEG reboilers meet the definition of a steam generating unit because TEG functions as a “heat transfer medium”. However, because the TEG reboilers (Emission Points AA-049 and AA-050) at the Leaf River facility have a heat input capacity less than 10 MMBTUH, they are not subject to NSPS Subpart Dc. 

40 CFR 60 SUBPART Kb
NSPS Kb applies to each volatile organic liquid storage tank that is greater than 75 cubic meters (19,813 gallons) in capacity and that has been constructed, reconstructed, or modified after July 23, 1984. NSPS Kb is not applicable to any of the organic liquid storage tanks at the Leaf River facility as none of the tanks are sized over 19,813 gallons.

40 CFR 60 SUBPART GG
The provisions of 40 CFR 60 Subpart GG - New Source Performance Standards for Stationary Gas Turbines are applicable to stationary gas turbines with a heat input at peak load equal to or greater than 10.7 gigajoules (10 million Btu) per hour, based on the lower heating value of the fuel fired constructed prior to February 18, 2005. The facility’s proposed turbines will have construction dates after the NSPS KKKKa December 13, 2024, effective date, therefore NSPS KKKKa applies to the facility and NSPS GG does not apply.

40 CFR 60 Subpart KKK
The provisions of 40 CFR 60, Subpart KKK - Standards of Performance for Equipment Leaks of VOC from Onshore Natural Gas Processing Plants (NSPS KKK) apply to affected facilities in onshore natural gas processing plants that commences construction, reconstruction, or modification after January 20, 1984, and on or before August 23, 2011.  Since the facility does not meet the definition of a natural gas processing plant, as defined in 40 CFR 60.631, the facility is not subject to NSPS KKK.

40 CFR 60 Subpart IIII
The provisions of 40 CFR 60 Subpart IIII - New Source Performance Standards for Compression Ignition Internal Combustion Engines (NSPS IIII) are applicable to stationary compression ignition internal combustion engines that commenced construction, modification, or reconstruction after April 1, 2006.  Emission Point AA-008 is subject to 40 CFR 60.4200(a)(2)(i), 

Per 40 CFR 60.4205(b), owners and operators of 2007 model year and later emergency stationary CI ICE with a displacement of less than 30 liters per cylinder that are not fire pump engines must comply with the emission standards for new nonroad CI engines in 40 CFR 60.4202, for all pollutants, for the same model year and maximum engine power. These standards are the Tier 3 Emission Standards for non-road CI ICE and the diesel engine (Emission Point AA-008) meets these emission standards.

Emission Point AA-008 must also meet the fuel standards outlined in 40 CFR 80.510(b) for nonroad (NR) diesel fuel, including: Sulfur content 15 ppm maximum and a Minimum cetane index of 40 or a maximum aromatic content of 35 volume percent.

Emission Point AA-008 must be operated and maintained according to the manufacturer's emission-related written instructions and change only those emission-related settings that are permitted by the manufacturer. Emission Point AA-008 is certified to the emission standards specified in 40 CFR 60.4205(b) and operated according to manufacturer’s specifications, therefore it is in compliance with 40 CFR 60.4211(c).

In order for the engine to be considered an emergency stationary ICE under this Subpart IIII, operational requirements of 40 CFR 60.4211(f)(1) through (3) must also be met.

40 CFR 60 Subpart JJJJ
The provisions of 40 CFR 60 Subpart JJJJ - New Source Performance Standards for Stationary Spark Ignition Internal Combustion Engines (NSPS JJJJ) are applicable to stationary spark ignition internal combustion engines that commenced construction, modification, or reconstruction after June 12, 2006.  NSPS JJJJ is applicable to the seven (7) compressor engines (Emission Points AA-001 through AA-007) and six (6) emergency generator engines (Emission Points AA-039 through AA-042, AB-026, and AA-047).

Emission Points AA-001 through AA-007, AB-026, and AA-047 are subject to the requirements of NSPS JJJJ because they commenced construction after June 12, 2006, were manufactured after July 1, 2007, and have a maximum engine power greater than 500 HP.

Table 1 to NSPS JJJJ provides the following emission limitations for non-emergency spark ignition (SI) gas engines rated greater than 500 HP that are manufactured after July 1, 2007 (Emission Points AA-001 through AA-004) and for stationary emergency engines greater than 130 HP (AB-026): NOx – 2.0 g/HP-hr; CO – 4.0 g/HP-hr; and VOC – 1.0 g/HP-hr.

Emission Points AA-005 and AA-006 were manufactured after July 1, 2010 and are each therefore subject to the following emissions limitations specified in Table 1 to NSPS JJJJ: NOx – 1.0 g/HP-hr; CO – 2.0 g/HP-hr; and VOC – 0.7 g/HP-hr.

Emission Point AA-007 will have a manufacture date after July 1, 2010 and will therefore be subject to the following emissions limitations specified in Table 1 to NSPS JJJJ: NOx – 1.0 g/HP-hr; CO – 2.0 g/HP-hr; and VOC – 0.7 g/HP-hr.

The anticipated actual emission factors after controls (oxidation catalysts) for Emission Points AA-001 through AA-007 are within the NSPS emission limitations.

As such, Leaf River will comply with the ongoing maintenance of the engines and emissions control equipment.

The four (4) Olympian 25 kW Emergency Generator Engines (Emission Points AA-039 through AA-042) are subject to the requirements NSPS JJJJ because they commenced construction after June 12, 2006, were manufactured after January 1, 2009, and have a maximum engine power greater than 19 kW.  These units are subject to the following emissions limitations: NOx + HC – 10 g/HP-hr and CO – 387 g/HP-hr.

Emission Points AA-001 through AA-007 utilize oxidation catalysts to comply with the CO and VOC emission limits of NSPS JJJJ. These engines are not considered certified and must keep a maintenance plan and records of conducted maintenance and must, to the extent practicable, maintain and operate the engine in a manner consistent with good air pollution control practice for minimizing emissions.  Each source must also conduct performance testing every 8,760 hours or 3 years, whichever comes first, to demonstrate compliance. 

Emission Points AA-039 through AA-042 must comply with the emergency operational requirements of 40 CFR 60.4243(d)(1) through (3), in order for each engine to be considered an emergency stationary ICE. Each source must also keep records required by 40 CFR 60.4245(a)(1) through (3).

Leaf River is unable to confirm whether emergency engines (Emission Points AA-039 through AA-042) are certified by the manufacturer to meet the non-emergency standards in 40 CFR 1048.101(c) as referenced by 60.4233(d). Therefore, hour meters are operated on these engines and the above records are kept.

40 CFR 60 SUBPART KKKK
The provisions of 40 CFR 60 Subpart KKKK - New Source Performance Standards for Stationary Combustion Turbines are applicable to stationary combustion turbines with a heat input at peak load equal to or greater than 10.7 gigajoules (10 MMBtu) per hour, based on the higher heating value of the fuel, which commenced construction, modification, or reconstruction after February 18, 2005 but before December 13, 2024.  The facility’s proposed turbines will have construction dates after the December 13, 2024, effective date, therefore NSPS KKKK does not apply to the facility.

40 CFR 60 SUBPART KKKKa
The provisions of 40 CFR 60 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines are applicable to stationary combustion turbines with a heat input at peak load equal to or greater than 10.7 gigajoules (10 MMBtu) per hour, based on the higher heating value of the fuel, which commenced construction, modification, or reconstruction after December 13, 2024.  The facility’s proposed turbines will have construction dates after the December 13, 2024, effective date, therefore NSPS KKKKa does apply to the facility.

The turbines are subject to the NOx emission standards of NSPS KKKKa and initial and subsequent NOx performance testing requirements.  The turbines are also subject to fuel sulfur content monitoring and reporting requirements for SO2 compliance purposes.

40 CFR 60 Subpart OOOO
The provisions of 40 CFR 60, Subpart OOOO - Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution (NSPS OOOO) are potentially applicable to owners and operators of onshore affected facilities that commence construction, modification, or reconstruction after August 23, 2011.  The site does not have any single natural gas wells or sweetening units. The facility is not located between the wellhead and the point of custody transfer to the natural gas transmission and storage segment; therefore, centrifugal compressors and reciprocating compressors are not affected facilities.  The storage vessels at the facility have uncontrolled potential VOC emissions under 6 tpy each and commenced construction before the NSPS OOOO trigger date of August 23, 2011.  The pneumatic controllers at the Leaf River facility are not affected sources because they do not belong to the oil production segment, the natural gas production segment, or to a natural gas processing plant. They do not belong to the natural gas production segment because the facility is after the point of custody transfer to the natural gas transmission and storage segment. The facility is not considered a natural gas processing plant as per the definition in Subpart OOOO (not engaged in the extraction of natural gas liquids from field gas or in fractionation of mixed natural gas liquids).  Consequently, none of the sources at the Leaf River Energy facility are subject to NSPS OOOO.

40 CFR 60 Subpart OOOOa
The provisions of 40 CFR 60, Subpart OOOOa - Standards of Performance for Crude Oil and Natural Gas Facilities for which Construction, Modification or Reconstruction Commenced After September 18, 2015 (NSPS OOOOa) are potentially applicable to new and modified sources in the oil and gas industry after August 18, 2015.  The site does not have any single natural gas wells or sweetening units. The facility is not located between the wellhead and the point of custody transfer to the natural gas transmission and storage segment; therefore, centrifugal compressors and reciprocating compressors are not affected facilities.  The storage vessels at the facility have uncontrolled potential VOC emissions under 6 tpy each and commenced construction before the NSPS OOOOa trigger date of August 18, 2015.  The pneumatic controllers at the Leaf River facility are not affected sources because they do not belong to the oil production segment, the natural gas production segment, or to a natural gas processing plant. They do not belong to the natural gas production segment because the facility is after the point of custody transfer to the natural gas transmission and storage segment. The facility is not considered a natural gas processing plant as per the definition in Subpart OOOO (not engaged in the extraction of natural gas liquids from field gas or in fractionation of mixed natural gas liquids).  Consequently, none of the sources at the Leaf River Energy facility are subject to NSPS OOOOa.

SPECIFIC APPLICABLE REQUIREMENTS
Emission Points AA-015, AA-016, and AA-049, and AA-050, are subject to an SO2 limit of 4.8 lbs/MMBTU. Emission Points AA-008, AA-039 through AA-042, AA-047, and AA-049 through AA-051, each have a particulate matter emission limitation of 0.6 lbs/MMBTU, because they have a rated heat input less than 10 MMBTU/hr. Emission Points AA-001 through AA-007, AA-015,  AA-016, AB-026,  AA-045, and AA-046 each have a rated heat input greater than 10 MMBTUH and thus are subject to a particulate matter limit of E=0.8808 * I-0.1667 where E is the emission rate in pounds per million BTU per hour heat input and I is the heat input in millions of BTU per hour.

Since the applicable regulations are state standards for combustion for PM and SO2, all the units should have a large margin of compliance.  The only fuel that is being used is natural gas, except for diesel fuel in Emission Point AA-008, therefore, the only monitoring requirement is the recording of the type and quantity of fuel used.

Other requirements are tabularized below.

Emission Point(s)	Pollutant/ Parameter	Limit/Standard	Monitoring Requirements	
AA-001 through
AA-007,
AA-015, 
AA-016,
AB-026,
AA-045,
and
AA-046	PM	E=0.8808*I-0.1667	Record Type and Quality of Fuel Used	
AA-008, 
AA-039
through
AA-042,
AA-047,
and
AA-049
through
AA-051	PM	0.6 lbs/MMBTUH	Record Type and Quality of Fuel Used	
AA-015,
AA-016,
and
AA-049, 
and
AA-050	SO2	4.8 lbs/MMBTU	Record Type and Quality of Fuel Used	
Facility-Wide	H2S	One (1) grain per 100 standard cubic feet	Record Type and Quality of Fuel Used	
AA-001 through
AA-007,
AA-015,
AA-016,
AA-039
through
AA-042,
AB-026,
AA-045
through
AA-047,
AA-049,
and
AA-050	Fuel	Combust pipeline quality natural gas	Record Type and Quality of Fuel Used	
AA-001 through
AA-007	Control Device	Engines must operate with an oxidation catalyst	Monitoring of operations	
AB-026	NOx,
CO, and VOC	2.0 g/bhp-hr NOx or 160 ppmvd @ 15% O2 
4.0 g/bhp-hr CO or 540 ppmvd @ 15% O2 
1.0 g/bhp-hr VOC or 86 ppmvd @ 15% O2 	Monitoring of operations	
AA-001 through
AA-004	NOx,
CO, and VOC	2.0 g/bhp-hr NOx or 160 ppmvd @ 15% O2 per source,
4.0 g/bhp-hr CO or 540 ppmvd @ 15% O2 per source,
1.0 g/bhp-hr VOC or 86 ppmvd @ 15% O2 per source	Performance Stack Testing	
AA-005 
through
AA-007	NOx,
CO, and VOC	1.0 g/bhp-hr NOx or 82 ppmvd @ 15% O2 per source,
2.0 g/bhp-hr CO or 270 ppmvd @ 15% O2 per source,
0.7 g/bhp-hr VOC or 60 ppmvd @ 15% O2 per source	Performance Stack Testing	
AA-008	NMHC + NOx, CO, and PM	4.0 g/kW-hr NMHC + NOx,
3.5 g/kW-hr CO,
0.2 g/kW-hr PM	Monitoring of operations	
	Fuel	15 ppm sulfur content and a min. cetane index of 40 or a max. aromatic content of 35 % volume	Record Type and Quality of Fuel Used	
AA-011
and
AA-012	Hours	≤ 7,008 hours/year per emission source and
≤  1,500 MMscf/day combined gas throughput 	Monitoring of operations	
AA-051	Control Device	Operational Requirement	Monitoring of operations	
	Temp.	≥ 1,600 combustion chamber temperature	Monitoring of operations	
AA-015
and
AA-016	Fuel	≤ 0.5% by weight	Record Type and Quality of Fuel Used	
AA-008
and
AA-039
through
AA-042	CO and
NOx + HC	387 g/bhp-hr CO per source and 10 g/bhp-hr NOx + HC per source	Monitoring of operations	
AA-008,
AA-039
through
AA-042,
AB-026,
and
AA-047	Hour Meter	Operational Requirement	Monitoring of operations	
Facility-Wide	NOx, CO, and VOC	≤ 249 tpy per pollutant	Monitoring of operations	
	Formaldehyde	≤ 9.9 tpy	Monitoring of operations	
	Total HAPs	≤ 24.9 tpy	Monitoring of operations	
AA-045
and
AA-046	SO2	0.060 lb SO2 /MMBTU (20 grains S/100scf)	Record Type and Quality of Fuel Used	
	NOx	15 ppm at 15% O2 or 24 ng/J (0.055 lb/MMBtu) while operating at a utilization rate > 45%; or  	Performance Stack Testing	
		25 ppm at 15% O2 or 40 ng/J (0.092 lb/MMBtu) while operating at a utilization rate ≤ 45%	Monitoring of operations	
		150 ppm at 15% O2 or 240 ng/J (0.55 lb/MMBtu) while operating at less than 70 percent of the base load rating	Monitoring of operations