55-00001E

Page 1 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: March 31, 2017 September 26, 2014 

### PLAN APPROVAL Issue Date: Effective Date: In accordance with the provisions of the Air Pollution Control Act, the Act of January 8, 1960, P.L. 2119, as amended, and 25 Pa. Code Chapter 127, the Owner, [and Operator if noted] (hereinafter referred to as permittee) identified below is authorized by the Department of Environmental Protection (Department) to construct, install, modify or reactivate the air emission source(s) more fully described in the site inventory list. This Facility is subject to all terms and conditions specified in this plan approval. Nothing in this plan approval relieves the permittee from its obligations to comply with all applicable Federal, State and Local laws and regulations. The regulatory or statutory authority for each plan approval condition is set forth in brackets. All terms and conditions in this permit are federally enforceable unless otherwise designated as "State-Only" requirements. Plan Approval No. 55-00001E Mailing Address: Plant: HUMMEL STA LLC/SUNBURY NAT GAS PLT

PO BOX 517 OLD TRAIL RD SHAMOKIN DAM, PA 17876-0517 Location: 55 Snyder County

HUMMEL STA LLC
Responsible Official Name: Title: Name: Title: Phone: [Signature] _________________________________________

ED GRIEGEL VP OPERATIONS MARK CRAWFORD EHS MANAGER (570) 884 - 1247 SIC Code: 4911 Trans. & Utilities - Electric Services 55915 Shamokin Dam Borough

MUHAMMAD Q. ZAMAN, ENVIRONMENTAL PROGRAM MANAGER, NORTHCENTRAL REGION Owner Information Plant Information Name:

Phone: (570) 884 - 1241 Expiration Date: Revision Date: Revision Type: September 26, 2014

April 1, 2013 Transfer

Plan Approval Contact Person Federal Tax Id - Plant Code: 47-1427528-01 COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION

AIR QUALITY PROGRAM55-00001E

Page 2 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Plan Approval Description This plan approval is for the repowering of the Sunbury Generation facility. This project will be for the construction of three (3) natural gas fired F class combustion turbines coupled with three (3) heat recovery steam generators (HSRGs) equipped withnatural gas fired duct burners. The project will also be for the construction of a natural gas fired auxiliary boiler to assist with startup and shutdown activities and a small natural gas fired dew point heater. As part of the project all of the facility's existing coal fired utility boilers will be permanently retired.55-00001E

Page 3 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### SECTION A. Table of Contents Section A. Facility/Source Identification Section B. General Plan Approval Requirements

Section C. Site Level Plan Approval Requirements

Section D. Source Level Plan Approval Requirements

Section E. Alternative Operating Scenario(s)
Section F. Emission Restriction Summary #001 #002 #003 #004 #005 #006 #007 #008 #009 #010 #011 #012 #013 Definitions

Future Adoption of Requirements Plan Approval Temporary Operation Content of Applications Public Records and Confidential Information Plan Approval terms and conditions. Transfer of Plan Approvals Inspection and Entry Plan Approval Changes for Cause Circumvention Submissions Risk Management Compliance Requirement Table of Contents Plan Approval Inventory List

C-I: Restrictions C-II: Testing Requirements C-III: Monitoring Requirements C-IV: Recordkeeping Requirements C-V: Reporting Requirements C-VI: Work Practice Standards C-VII: Additional Requirements C-VIII: Compliance Certification C-IX: Compliance Schedule D-I: Restrictions D-II: Testing Requirements D-III: Monitoring Requirements D-IV: Recordkeeping Requirements D-V: Reporting Requirements D-VI: Work Practice Standards D-VII: Additional Requirements Note: These same sub-sections are repeated for each source! E-I: Restrictions E-II: Testing Requirements E-III: Monitoring Requirements E-IV: Recordkeeping Requirements E-V: Reporting Requirements E-VI: Work Practice Standards E-VII: Additional Requirements55-00001E

Page 4 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### SECTION A. Table of Contents Section G. Miscellaneous55-00001E

Page 5 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### PERMIT MAPS CU 070 CU 075 PROC P181 PROC P182 PROC P183 STAC

S070 STAC S075 CNTL C181 CNTL C182 CNTL C183 CNTL

C181A CNTL C182A CNTL C183A STAC

S181 STAC S182 STAC S183 FML FML11 FML FML11 FML FML11 FML FML11 FML FML11 

### SECTION A. Plan Approval Inventory List 070 075 P181 P182 P183 C181 C181A C182 C182A C183 C183A AUX BOILER (REPOWER)

DEW POINT HEATER CCGT #1 AND DUCT BURNER CCGT #2 AND DUCT BURNER CCGT #3 AND DUCT BURNER SCR FOR CCGT 1 OXIDATION CATALYST FOR CCGT 1 SCR FOR CCGT 2 OXIDATION CATALYST FOR CCGT 2 SCR FOR CCGT 3 OXIDATION CATALYST FOR CCGT 3 106.000 15.000 2,538.000 2,538.000 2,538.000 MMBTU/HR

MMBTU/HR MMBTU/HR MMBTU/HR MMBTU/HR Source ID Source Name Capacity/Throughput Fuel/Material

FML11 NATURAL GAS LINE S070 S075 S181 S182 S183 AUX BOILER STACK

DEW POINT HEATER STACK CCGT #1 STACK CCGT #2 STACK CCGT #3 STACK55-00001E

Page 6 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: #001 #002
#003

#004 #005 Definitions Future Adoption of Requirements Plan Approval Temporary Operation

Content of Applications Public Records and Confidential Information

Words and terms that are not otherwise defined in this plan approval shall have the meanings set forth in Section 3 of the Air Pollution Control Act (35 P.S. § 4003) and 25 Pa. Code § 121.1. The issuance of this plan approval does not prevent the future adoption by the Department of any rules, regulations or standards, or the issuance of orders necessary to comply with the requirements of the Federal Clean Air Act or the Pennsylvania Air Pollution Control Act, or to achieve or maintain ambient air quality standards. The issuance of this plan approval shall not be construed to limit the Department's enforcement authority. This plan approval authorizes temporary operation of the source(s) covered by this plan approval provided the following conditions are met. (a) When construction, installation, modification, or reactivation is being conducted, the permittee shall provide written notice to the Department of the completion of the activity approved by this plan approval and the permittee's intent to commence operation at least five (5) working days prior to the completion of said activity. The notice shall state when the activity will be completed and when the permittee expects to commence operation. When the activity involves multiple sources on different time schedules, notice is required for the commencement of operation of each source. (b) Pursuant to 25 Pa. Code § 127.12b (d), temporary operation of the source(s) is authorized to facilitate the shakedown of sources and air cleaning devices, to permit operations pending the issuance of a permit under 25 Pa. Code Chapter 127, Subchapter F (relating to operating permits) or Subchapter G (relating to Title V operating permits) or to permit the evaluation of the air contaminant aspects of the source. (c) This plan approval authorizes a temporary operation period not to exceed 180 days from the date of commencement of operation, provided the Department receives notice from the permittee pursuant to paragraph (a), above. (d) The permittee may request an extension of the 180-day shakedown period if further evaluation of the air contamination aspects of the source(s) is necessary. The request for an extension shall be submitted, in writing, to the Department at least 15 days prior to the end of the initial 180-day shakedown period and shall provide a description of the compliance status of the source, a detailed schedule for establishing compliance, and the reasons compliance has not been established. This temporary operation period will be valid for a limited time and may be extended for additional limited periods, each not to exceed 180 days. (e) The notice submitted by the permittee pursuant to subpart (a) above, prior to the expiration of the plan approval, shall modify the plan approval expiration date on Page 1 of this plan approval. The new plan approval expiration date shall be 180 days from the date of commencement of operation. The permittee shall maintain and operate the sources and associated air cleaning devices in accordance with good engineering practice as described in the plan approval application submitted to the Department. (a) The records, reports or information obtained by the Department or referred to at public hearings shall be available to the public, except as provided in paragraph (b) of this condition. (b) Upon cause shown by the permittee that the records, reports or information, or a particular portion thereof, but not emission data, to which the Department has access under the act, if made public, would divulge production or sales figures or methods, processes or production unique to that person or would otherwise tend to affect adversely the 

### SECTION B. General Plan Approval Requirements [25 Pa. Code § 121.1] [25 Pa. Code § 127.12b (a) (b)] [25 Pa. Code § 127.12b]

[25 Pa. Code § 127.12(a) (10)] [25 Pa. Code §§ 127.12(c) and (d) & 35 P.S. § 4013.2]55-00001E

Page 7 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: #006

#007

#008 Plan Approval terms and conditions.

Transfer of Plan Approvals

Inspection and Entry

competitive position of that person by revealing trade secrets, including intellectual property rights, the Department will consider the record, report or information, or particular portion thereof confidential in the administration of the act. The Department will implement this section consistent with sections 112(d) and 114(c) of the Clean Air Act (42 U.S.C.A. § § 7412(d) and 7414(c)). Nothing in this section prevents disclosure of the report, record or information to Federal, State or local representatives as necessary for purposes of administration of Federal, State or local air pollution control laws, or when relevant in a proceeding under the act. [Additional authority for this condition is derived from 25 Pa. Code Section 127.13] (a) This plan approval will be valid for a limited time, as specified by the expiration date contained on Page 1 of this plan approval. Except as provided in § § 127.11a and 127.215 (relating to reactivation of sources; and reactivation), at the end of the time, if the construction, modification, reactivation or installation has not been completed, a new plan approval application or an extension of the previous approval will be required. (b) If construction has commenced, but cannot be completed before the expiration of this plan approval, an extension of the plan approval must be obtained to continue construction. To allow adequate time for departmental action, a request for the extension shall be postmarked at least thirty (30) days prior to the expiration date. The request for an extension shall include the following: (i) A justification for the extension, (ii) A schedule for the completion of the construction If construction has not commenced before the expiration of this plan approval, then a new plan approval application must be submitted and approval obtained before construction can commence. (c) If the construction, modification or installation is not commenced within 18 months of the issuance of this plan approval or if there is more than an 18-month lapse in construction, modification or installation, a new plan approval application that meets the requirements of 25 Pa. Code Chapter 127, Subchapter B (related to plan approval requirements), Subchapter D (related to prevention of significant deterioration of air quality), and Subchapter E (related to new source review) shall be submitted. The Department may extend the 18-month period upon a satisfactory showing that an extension is justified. (a) This plan approval may not be transferred from one person to another except when a change of ownership is demonstrated to the satisfaction of the Department and the Department approves the transfer of the plan approval in writing. (b) Section 127.12a (relating to compliance review) applies to a request for transfer of a plan approval. A compliance review form shall accompany the request. (c) This plan approval is valid only for the specific source and the specific location of the source as described in the application. (a) Pursuant to 35 P.S. § 4008, no person shall hinder, obstruct, prevent or interfere with the Department or its personnel in the performance of any duty authorized under the Air Pollution Control Act. (b) The permittee shall also allow the Department to have access at reasonable times to said sources and associated air cleaning devices with such measuring and recording equipment, including equipment recording visual observations, as the Department deems necessary and proper for performing its duties and for the effective enforcement of the Air Pollution Control Act and regulations adopted under the act. 

### SECTION B. General Plan Approval Requirements
[25 Pa. Code § 127.12b]

[25 Pa. Code § 127.32]

[25 Pa. Code § 127.12(4) & 35 P.S. § 4008 & § 114 of the CAA]55-00001E

Page 8 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: #009

#010

#011

#012 Plan Approval Changes for Cause

Circumvention

Submissions
Risk Management

(c) Nothing in this plan approval condition shall limit the ability of the Environmental Protection Agency to inspect or enter the premises of the permittee in accordance with Section 114 or other applicable provisions of the Clean Air Act. This plan approval may be terminated, modified, suspended or revoked and reissued if one or more of the following applies: (a) The permittee constructs or operates the source subject to the plan approval in violation of the act, the Clean Air Act, the regulations promulgated under the act or the Clean Air Act, a plan approval or permit or in a manner that causes air pollution. (b) The permittee fails to properly or adequately maintain or repair an air pollution control device or equipment attached to or otherwise made a part of the source. (c) The permittee fails to submit a report required by this plan approval. (d) The Environmental Protection Agency determines that this plan approval is not in compliance with the Clean Air Act or the regulations thereunder. (a) The permittee, or any other person, may not circumvent the new source review requirements of 25 Pa. Code Chapter 127, Subchapter E by causing or allowing a pattern of ownership or development, including the phasing, staging, delaying or engaging in incremental construction, over a geographic area of a facility which, except for the pattern of ownership or development, would otherwise require a permit or submission of a plan approval application. (b) No person may permit the use of a device, stack height which exceeds good engineering practice stack height, dispersion technique or other technique which, without resulting in reduction of the total amount of air contaminants emitted, conceals or dilutes an emission of air contaminants which would otherwise be in violation of this plan approval, the Air Pollution Control Act or the regulations promulgated thereunder, except that with prior approval of the Department, the device or technique may be used for control of malodors. Reports, test data, monitoring data, notifications shall be submitted to the: Regional Air Program Manager PA Department of Environmental Protection (At the address given on the plan approval transmittal letter or otherwise notified) (a) If required by Section 112(r) of the Clean Air Act, the permittee shall develop and implement an accidental release program consistent with requirements of the Clean Air Act, 40 CFR Part 68 (relating to chemical accident prevention provisions) and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act (P.L. 106-40). (b) The permittee shall prepare and implement a Risk Management Plan (RMP) which meets the requirements of Section 112(r) of the Clean Air Act, 40 CFR Part 68 and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act when a regulated substance listed in 40 CFR § 68.130 is present in a process in more than the listed threshold quantity at the facility. The permittee shall submit the RMP to the Environmental Protection Agency according to the following schedule and requirements: (1) The permittee shall submit the first RMP to a central point specified by the Environmental Protection Agency no later than the latest of the following: 

### SECTION B. General Plan Approval Requirements [25 Pa. Code 127.13a]

[25 Pa. Code §§ 121.9 & 127.216]

[25 Pa. Code § 127.12c]
[25 Pa. Code § 127.12(9) & 40 CFR Part 68]55-00001E

Page 9 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: #013 Compliance Requirement

(i) Three years after the date on which a regulated substance is first listed under § 68.130; or, (ii) The date on which a regulated substance is first present above a threshold quantity in a process. (2) The permittee shall submit any additional relevant information requested by the Department or the Environmental Protection Agency concerning the RMP and shall make subsequent submissions of RMPs in accordance with 40 CFR § 68.190. (3) The permittee shall certify that the RMP is accurate and complete in accordance with the requirements of 40 CFR Part 68, including a checklist addressing the required elements of a complete RMP. (c) As used in this plan approval condition, the term "process" shall be as defined in 40 CFR § 68.3. The term "process" means any activity involving a regulated substance including any use, storage, manufacturing, handling, or on-site movement of such substances or any combination of these activities. For purposes of this definition, any group of vessels that are interconnected, or separate vessels that are located such that a regulated substance could be involved in a potential release, shall be considered a single process. A person may not cause or permit the operation of a source subject to § 127.11 (relating to plan approval requirements), unless the source and air cleaning devices identified in the application for the plan approval and the plan approval issued to the source, are operated and maintained in accordance with specifications in the application and conditions in the plan approval issued by the Department. A person may not cause or permit the operation of an air contamination source subject to this chapter in a manner inconsistent with good operating practices. 

### SECTION B. General Plan Approval Requirements

[25 Pa. Code § 127.25]55-00001E

Page 10 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: I. RESTRICTIONS. 

### Emission Restriction(s). # 001

# 002 [25 Pa. Code §123.1]

[25 Pa. Code §123.2] Prohibition of certain fugitive emissions

Fugitive particulate matter The permittee shall not permit the emission of fugitive air contaminants into the outdoor atmosphere from a source other than the following: (1) Construction or demolition of buildings or structures. (2) Grading, paving and maintenance of roads and streets. (3) Use of roads and streets. Emissions from material in or on trucks, railroad cars and other vehicular equipment are not considered as emissions from use of roads and streets. (4) Clearing of land. (5) Stockpiling of materials. (6) Open burning operations. (7) Blasting in open pit mines. Emissions from drilling are not considered as emissions from blasting. (8) Sources and classes of sources other than those identified above, for which the permittee has obtained a determination from the Department that fugitive emissions from the source, after appropriate control, meet the following requirements: (a) the emissions are of minor significance with respect to causing air pollution; and (b) the emissions are not preventing or interfering with the attainment or maintenance of any ambient air quality standard. The permittee shall not permit fugitive particulate matter to be emitted into the outdoor atmosphere from a source specified in (1) through (8) in condition #001 if the emissions are visible at the point the emissions pass outside the permittee's property. # 003

# 004 [25 Pa. Code §127.12b]

[25 Pa. Code §139.1] Plan approval terms and conditions.

Sampling facilities. (a) At least sixty (60) days prior to the performance of the stack testing required by this plan approval, a test plan shall be submitted to the Department for evaluation. The plan shall contain a description of the proposed test methods and dimensioned drawings or sketches showing the test port locations. (b) The Department shall be given at least fourteen (14) days advance notice of the scheduled dates for the performance of the stack testing required by this plan approval. (c) Within sixty (60) days of the completion of the stack tests required by this plan approval, two copies of the test report shall be submitted to the Department. This report shall contain the results of the tests, a description of the testing and analytical procedures actually used in performance of the tests, all process and operating data collected during the tests, a copy of all raw data, and a copy of all calculations generated during data analysis. Upon the request of the Department, the permittee shall provide adequate sampling ports, safe sampling platforms and adequate utilities for the performance by the Department of tests on such source. The Department will set forth, in the request, the time period in which the facilities shall be provided as well as the specifications for such facilities. II. TESTING REQUIREMENTS. 

### SECTION C. Site Level Plan Approval Requirements55-00001E

Page 11 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 005

# 006

# 007 [25 Pa. Code §139.11]

[25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] General requirements.

Plan approval terms and conditions.

Plan approval terms and conditions. (a) As specified in 25 Pa. Code Section 139.11(1), performance tests shall be conducted while the source is operating at maximum routine operating conditions or under such other conditions, within the capacity of the equipment, as may be requested by the Department. (b) As specified in 25 Pa. Code Section 139.11(2), the Department will consider test results for approval where sufficient information is provided to verify the source conditions existing at the time of the test and where adequate data is available to show the manner in which the test was conducted. Information submitted to the Department shall include, as a minimum, all of the following: (1) A thorough source description, including a description of any air cleaning devices and the flue. (2) Process conditions, for example, the charging rate of raw material or rate of production of final product, boiler pressure, oven temperature and other conditions which may effect emissions from the process. (3) The location of sampling ports. (4) Effluent characteristics, including velocity, temperature, moisture content, gas density (percentage of CO, CO2, O2 and N2), static and barometric pressures. (5) Sample collection techniques employed, including procedures used, equipment descriptions and data to verify that isokinetic sampling for particulate matter collection occurred and that acceptable test conditions were met. (6) Laboratory procedures and results. (7) Calculated results. [Compliance with the provisions specified in this streamlined plan approval condition assures compliance with the monitoring requirements specified in 40 CFR Subpart KKKK Section 60.4335, 40 CFR Subpart KKKK Section 60.4345 and 25 Pa. Code Sections 127.1 and 127.12] (a) The permittee shall install, certify, maintain and operate continuous emission monitoring systems (CEMS) for nitrogen oxides, carbon monoxide, carbon dioxide, and ammonia emissions on the exhaust of Source IDs P181, P182 and P183 in accordance with all applicable requirements specified in 25 Pa. Code Chapter 139 and the Department’s “Continuous Source Monitoring Manual.” No CEMS may however be installed unless Phase I approval has first been obtained from the Department. (b) The permittee shall submit a Phase I application to the Department for all CEMS to be associated with Source ID P181, P182 and P183 at least 180 days prior to the expected commencement of operation date of each respective unit. (c) The permittee shall implement a carbon dioxide mass emission monitoring system in accordance with the requirements in 40 CFR Section 98.43 and 40 CFR Section 75.13. [Compliance with the provisions specified in this streamlined plan approval condition assures compliance with the monitoring requirements specified in 40 CFR Subpart KKKK, Section 60.4335, 40 CFR Subpart KKKK, Section 60.4345 and 25 Pa Code Sections 127.1 and 127.12] Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, Source IDs P181, P182 and P183 shall not be operated for any reason unless the associated nitrogen oxides (NOx), ammonia (NH3), carbon III. MONITORING REQUIREMENTS. 

### SECTION C. Site Level Plan Approval Requirements55-00001E

Page 12 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 008

# 009 [25 Pa. Code §127.12b]

[40 CFR Part 98 Mandatory Greenhouse Gas Reporting §40 CFR 98.1] Plan approval terms and conditions.

Purpose and scope. monoxide (CO), carbon dioxide (CO2) and oxygen continuous emission monitoring system has received Phase I approval from the Department and has subsequently been installed and made operational in accordance with the conditions of this plan approval. Furthermore, the continuous emission monitoring system shall be operated any time the combined cycle combustion turbines (Source IDs P181, P182 and P183) are operating in accordance with all applicable requirements specified in 25 Pa. Code Chapter 139, as well as with the Department's Continuous Source Monitoring Manual unless superseded by conditions contained in this plan approval. The required relative accuracy testing shall have been completed on the associated continuous emission monitoring system and the monitoring system shall be fully certified in accordance with the Department's Continuous Source Monitoring Manual within 180 days of startup of the turbines. Pursuant to 25 Pa. Code Section 127.12b, (a) the permittee shall keep accurate and comprehensive records of the following to demonstrate compliance with the fuel requirements specified above under part I. Restrictions for each combined-cycle gas turbine: (1) The gas quality characteristics in a current, valid purchase contract, tariff sheet or transportation contract for the gaseous fuel, specifying that the maximum total sulfur content of the fuel; OR (2) Representative fuel sampling data which show that the sulfur content of the gaseous fuel. (i) With additional authority for this item taken from 40 CFR 70.6, the records of the fuel sampling performed in this paragraph shall include the following; (i) The date, place, and time of sampling; (ii) The date(s) analyses were performed; (iii) The company or entity that performed the analyses; (iv) The analytical techniques or methods used; (v) The results of such analyses; and (vi) The operating conditions as existing at the time of sampling or measurement (b) All information to satisfy this recordkeeping requirement shall be kept for a minimum of five (5) years and shall be made available to the Department upon request. The permittee shall comply with the applicable Mandatory GHG Reporting requirements of 40 CFR Part 98. (a) The facility shall comply with the requirements in 40 CFR Part 98 Subpart D, (40 CFR §§ 98.40 through 98.48). Subpart A - General Provision IV.

V.

VI. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS.
WORK PRACTICE REQUIREMENTS. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). 

### SECTION C. Site Level Plan Approval Requirements55-00001E

Page 13 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 010 # 011 # 012 # 013

# 014
# 015
# 016
# 017 [25 Pa. Code §121.7] [25 Pa. Code §123.31] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Prohibition of air pollution. Limitations Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. No person may permit air pollution as that term is defined in the Air Pollution Control Act (35 P.S. Section 4003). The permittee shall not permit the emission of any malodorous air contaminants into the outdoor atmosphere from any source in such a manner that the malodors are detectable outside the property of the person on whose land the source is being operated. Source IDs 031, 032, 033 034, 035 and 036 shall be permanently shut down prior to the commencement of operation to the combustion turbines authorized by this plan approval. Under no circumstances Source IDs 031, 032, 033 034, 035 and 036 be operated once the combustion turbines have commenced operation.Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the three combinedcycle gas turbines shall be constructed and operated from the options identified in this plan approval. The three combinedcycle gas turbines chosen by the permittee shall be either the three Siemens model 5000F4 combined-cycle gas turbines, the three Siemens model 5000F5 or the three General Electric model 7FA.05 combined-cycle gas turbines. Additionally, the permittee shall let the Department know within 10 days of the selection of the vendor and model for the turbines, selective catalytic reduction units and oxidation catalyst. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.106(a)(1)(i), 96.121(a), 97.106(a)(1)(i) and 97.121(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.306(a)(1)(i), 96.321(a), 97.306(a)(1)(i) and 97.321(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx ozone season unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.206(a)(1)(i), 96.221(a), 97.206(a)(1)(i) and 97.221(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR SO2 unit commences operation. The Department will evaluate the actual emission rates and may revise the allowable emission rates based upon demonstrated performance (CEMS data, stack tests results), and/or subsequently promulgated applicable requirements during the first five years of operation. Any revision of the allowable emission rates shall be accomplished by minor modification provided that the revised allowable emission rates do not exceed levels at which best available technology (BAT) were evaluated and that are not a result of a physical change at the facility. VII. ADDITIONAL REQUIREMENTS. 

### SECTION C. Site Level Plan Approval Requirements55-00001E

Page 14 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 018 # 019

# 020 [25 Pa. Code §127.12b] [25 Pa. Code §145.204.]

[40 CFR Part 72 Regulations on Permits §40 CFR 72.9] Plan approval terms and conditions. Incorporation of Federal regulations by reference.

Standard requirements. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, all air-contaminant sources and control devices shall be maintained and operated in accordance with the manufacturer’s recommend maintenance and operation. (a) Except as otherwise specified in this subchapter, the provisions of the CAIR SO2 Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (b) Except as otherwise specified in this subchapter, the provisions of the CAIR NOx Ozone Season Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (c) In the event of a conflict between Federal regulatory provisions incorporated by reference in this subchapter and Pennsylvania regulatory provisions, the provision expressly set out in this subchapter shall be followed unless the Federal provision is more stringent. Federal regulations that are cited in this subchapter or that are cross-referenced in the Federal regulations incorporated by reference include any Pennsylvania modifications made to those Federal regulations. [Additional authority for this plan approval condition is also derived from 40 CFR Part 72 Section 72.30(b)(2) (ii)] The permittee shall submit an Acid Rain permit application for the new units to be constructed at least 24 months before the date on which the units commence operation. VIII. COMPLIANCE CERTIFICATION. IX. COMPLIANCE SCHEDULE. No compliance milestones exist. Subpart A--Acid Rain Program General Provisions 

### SECTION C. Site Level Plan Approval Requirements

No additional compliance certifications exist except as provided in other sections of this plan approval including Section B (relating to Plan Approval General Requirements).55-00001E

Page 15 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Source ID: Source Name:

070 AUX BOILER (REPOWER)

Source Capacity/Throughput:
FML FML11 CU 070 STAC

S070 106.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s).

Fuel Restriction(s). # 001
# 002 # 003 # 004
# 005

# 006 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 40 CFR Part 60 Subpart Db Section 60.44b] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions from Source ID 070 shall not exceed 0.036 lbs/MMBTU and 7.60 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide (CO) emissions from Source ID 070 shall not exceed 0.074 lbs/MMBTU and 15.7 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compounds (VOC) emissions from Source ID 070 shall not exceed 0.005 lbs/MMBTU and 1.10 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 25 Pa. Code Section 123.22] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides (SOx) emissions from Source ID 070 shall not exceed 0.003 lbs/MMBTU and 0.60 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 25 Pa. Code Section 123.11] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total particulate matter emissions, including PM10 and PM2.5 from Source ID 070 shall not exceed 0.008 lbs/MMBTU and 1.58 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 070 shall only be fired on pipeline quality natural gas. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 16 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4] # 008

# 009

# 010 Subpart A - General Provisions Plan approval terms and conditions.

Plan approval terms and conditions.

Address. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 40 CFR Part 60 Section 60.8] Within 120 days of achieving maximum normal production, but no later than 180 days after initial startup, the permittee shall perform testing on the exhaust of Source ID 070 to verify compliance with the NOx and CO emissions limitations. The NOx and CO stack testing shall be conducted simultaneously. The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval.

The permittee shall keep records of the following: (a) the supporting calculations on a monthly basis for the NOx emissions from Source ID 070 to verify compliance with the NOx emissions limitations of pounds per million Btu, pounds and tons in any 12 consecutive month period. (b) the supporting calculations on a monthly basis for the CO emissions from Source ID 070 to verify compliance with the CO emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (c) the supporting calculations on a monthly basis for the SOx emissions from Source ID 070 to verify compliance with the SOx emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (d) the supporting calculations on a monthly basis for the total PM and PM10 emissions from Source ID 070 to verify compliance with the total PM and PM10 emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (e) the supporting calculations on a monthly basis for the VOC emissions from Source ID 070 to verify compliance with the VOC emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (f) The number of hours each month and the cooresponding 12 consecutive month totals Source ID 070 has operated. (g) These records shall be retained for a minimum of five (5) years and shall be made available to the Department upon request. The submission of all requests, reports, applications, submittals and other communications required by the Standards of Performance must be made to both the Department of Environmental Protection and the Environmental Protection No additional monitoring requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). II.

III. IV.

V. TESTING REQUIREMENTS.

MONITORING REQUIREMENTS. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS. Operation Hours Restriction(s). # 007 [25 Pa. Code §127.12b] Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 070 shall not be operated in excess of 4,000 hours in any 12 consecutive month period. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 17 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.40b] # 011 # 012 # 013 Subpart Db - Standards of Performance for Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions. Plan approval terms and conditions. Applicability and delegation of authority. Agency.The Environmental Protection Agency copies may be sent to: Associate Director, Office of Air Enforcement and Compliance Assistance (3AP20) U.S. EPA Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448

Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 070 shall be a natural gas fired auxilliary boiler rated at 106.0 MMBTU/hr. Within 30 days of selection, but no less than 120 days prior to the installation, of Source ID 070, the permittee shall submit to the Department for approval, the manufacturer name and model number with design specifications of Source ID 070, by submitting the appropriate pages of the plan approval application. Source ID 070 is subject to the New Source Performance Standards, 40 CFR Part 60, Subpart Db and shall comply with all applicable requirements as specified in 40 CFR Sections 60.40b through 60.49b. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). VI. VII. WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 18 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Source ID: Source Name:

075 DEW POINT HEATER

Source Capacity/Throughput:
FML FML11 CU 075 STAC

S075 15.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s).

Fuel Restriction(s). Operation Hours Restriction(s). # 001 # 002 # 003 # 004
# 005

# 006
# 007 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions from Source ID 075 shall not exceed 0.085 lbs/MMBTU and 5.25 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide (CO) emissions from Source ID 075 shall not exceed 0.037 lbs/MMBTU and 2.28 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compounds (VOC) emissions from Source ID 075 shall not exceed 0.006 lbs/MMBTU and 0.34 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 25 Pa. Code Section 123.22] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides (SOx) emissions from Source ID 075 shall not exceed 0.003 lbs/MMBTU and 0.17 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 25 Pa. Code Section 123.11] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total particulate matter emissions, including PM10 and PM2.5 from Source ID 075 shall not exceed 0.008 lbs/MMBTU and 0.46 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall not be operated in excess of 8,275 hours in any 12 consecutive month period. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 19 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.48c]

[25 Pa. Code §127.12b] # 008

# 009

# 010 Subpart Dc - Standards of Performance for Small Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions.

Reporting and recordkeeping requirements.

Plan approval terms and conditions. The permittee shall keep records of the following : (a) the supporting calculations on a monthly basis for the NOx emissions from Source ID 075 to verify compliance with the NOx emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (b) the supporting calculations on a monthly basis for the CO emissions from Source ID 075 to verify compliance with the CO emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (c) the supporting calculations on a monthly basis for the SOx emissions from Source ID 075 to verify compliance with the SOx emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (d) the supporting calculations on a monthly basis for the total particulate matter (PM) emissions from Source ID 075 to verify compliance with the total PM emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (e) the supporting calculations on a monthly basis for the VOC emissions from Source ID 075 to verify compliance with the VOC emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (f) the number of hours each month and the cooresponding 12 consecutive month totals Source ID 075 has been operated.. (g) These records shall be retained for a minimum of five (5) years and shall be made available to the Department upon request. The permittee shall keep records of the amount of natural gas combusted in Source ID 075 on a daily basis.

Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall be No additional testing requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional monitoring requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements).

No additional reporting requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). II. III. IV.

V. VI. VII. TESTING REQUIREMENTS. MONITORING REQUIREMENTS. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS. WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 20 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.40c] # 011 # 012 Subpart Dc - Standards of Performance for Small Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions. Applicability and delegation of authority. a natural gas fired fuel gas heater rated at 15.0 MMBTU/hr. Within 30 days of selection, but no less than 120 days prior to the installation, of Source ID 075, the permittee shall submit to the Department for approval, the manufacturer name and model number with design specifications of Source ID 075, by submitting the appropriate pages of the plan approval application. Source ID 075 is subject to the New Source Performance Standards, 40 CFR Part 60, Subpart Dc and shall comply with all applicable requirements as specified in 40 CFR Sections 60.40c through 60.48c. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 21 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Source ID: Source Name:

P181 CCGT #1 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P181 CNTL

C181 CNTL

C181A STAC

S181 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P181 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P181 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from Source ID P181 when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P181 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P181 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P181 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P181 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P181, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 22 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source ID P181 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P181 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P181 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P181shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P181 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P181 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 23 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012

# 013
# 014

# 015 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP (a) Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the emissions from Source ID P181 shall not at anytime exceed any of the following limitations during a startup/shut down event : 1) The carbon monoxide (CO) emissions shall not exceed 1980 lbs/each cold start, 1394 lbs/each warm start, 757 lbs/each hot start, and 201 lbs/each shutdown. 2) The total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions shall not exceed 6.3 lbs/each cold start, 5.67 lbs/each warm start, 4.0 lbs/each hot start, and 1.6 lbs/each shutdown. 3) The nitrogen oxides (NOx) emissions shall not exceed 101.1 lbs/each cold start, 89.3 lbs/each warm start, 68.7 lbs/each hot start, and 35.4 lbs/each shutdown. 4) The volatile organic compounds (VOC) emissions shall not exceed 234.0 lbs/each cold start, 185.0 lbs/each warm start, 102.0 lbs/each hot start, and 34.0 lbs/each shutdown. [Compliance with this streamlined plan approval condition assures compliance with the requirements of 25 Pa. Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P181 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P181 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 24 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 018

# 019 # 020 # 021 Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (a) Within 180 days of start-up of Source ID P181, the permittee shall conduct EPA reference method testing on Source ID P181 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential II.

III. TESTING REQUIREMENTS.

MONITORING REQUIREMENTS. # 016

# 017 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, (a) A “startup event” is the period of time from initiation of combustion firing until the unit reaches steady state operation. “Shutdown event” is the period of time during the reduction in load of the CT for the purposes of shutting down the source. “Steady-state operation” is operation of the CT when the rate of change in load, with respect to time, is zero. (b) A cold start is defined as a restart occurring after an extended shutdown (generally >72 hours). A warm start is a restart occurring after a weekend shutdown (generally 12 to 72 hours). A hot start is a restart occurring after an overnight shutdown (generally < 8 to 12 hours). (c) A cold start shall not last longer than 48 minutes, a warm start no longer than 42 minutes, a hot start no longer than 36 minutes, and a shutdown no longer than 13 minutes. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 25 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] # 022

# 023

# 024 Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions. across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P181 . (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P181: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P181 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P181. 3) The number of start-ups and shut-downs performed on Source ID P181 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 26 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4] # 025

# 026

# 027

# 028 Subpart A - General Provisions Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175.

Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address. (c) The permittee shall keep records of a current, valid purchase contract, tariff sheet or transportation contract obtained yearly from the natural gas supplier demonstrating compliance with the sulfur content limitation of the natural gas. (d) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C181). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C181A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). (a) The permittee shall submit the records required for Source ID P181 on an quarterly basis to demonstrate compliance with the conditions herein. The quarterly records shall contain the 12 consecutive rolling totals, where applicable. (b) The quarterly reports shall be submitted to the Department by April 30 (covering January through March), July 31 (covering April through June), October 31 (covering July through September), and January 31 (covering October through December of the previous calendar year). The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 27 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] # 029 # 030

# 031
# 032 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. What are my general requirements for complying with this subpart?

What are my general requirements for complying with this subpart? Plan approval terms and conditions. Associate Director Office of Air Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P181. (a) You must operate and maintain your stationary combustion turbine, air pollution control equipment, and monitoring equipment in a manner consistent with good air pollution control practices for minimizing emissions at all times including during startup, shutdown, and malfunction. (b) When an affected unit with heat recovery utilizes a common steam header with one or more combustion turbines, the owner or operator shall either: (1) Determine compliance with the applicable NOX emissions limits by measuring the emissions combined with the emissions from the other unit(s) utilizing the common heat recovery unit; or (2) Develop, demonstrate, and provide information satisfactory to the Administrator on methods for apportioning the combined gross energy output from the heat recovery unit for each of the affected combustion turbines. The Administrator may approve such demonstrated substitute methods for apportioning the combined gross energy output measured at the steam turbine whenever the demonstration ensures accurate estimation of emissions related under this part. The permittee shall comply with the work practicce standards of 40 CFR PArt 60 Section 60.4333 for Source ID P181. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalgas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR VI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 28 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 033 # 034 # 035 # 036 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Does this subpart apply to my stationary combustion turbine? a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, the air contaminant emissions from Source ID P181 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the total combined hours of startups and shutdowns for Source ID P181 shall not exceed 210 hours in any 12 consecutive month period. Source ID P181 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 29 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Source ID: Source Name:

P182 CCGT #2 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P182 CNTL

C182 CNTL

C182A STAC

S182 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P182 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P182 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from each turbine when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P182 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P182 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P182 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P182 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P182, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 30 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source ID P182 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P182 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P182 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P182 shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P182 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P182 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 31 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012

# 013
# 014

# 015 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP (a) Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the emissions from Source ID P182 shall not at anytime exceed any of the following limitations during a startup/shut down event : 1) The carbon monoxide (CO) emissions shall not exceed 1980 lbs/each cold start, 1394 lbs/each warm start, 757 lbs/each hot start, and 201 lbs/each shutdown. 2) The total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions shall not exceed 6.3 lbs/each cold start, 5.67 lbs/each warm start, 4.0 lbs/each hot start, and 1.6 lbs/each shutdown. 3) The nitrogen oxides (NOx) emissions shall not exceed 101.1 lbs/each cold start, 89.3 lbs/each warm start, 68.7 lbs/each hot start, and 35.4 lbs/each shutdown. 4) The volatile organic compounds (VOC) emissions shall not exceed 234.0 lbs/each cold start, 185.0 lbs/each warm start, 102.0 lbs/each hot start, and 34.0 lbs/each shutdown. [Compliance with this streamlined plan approval condition assures compliance with the requirements of 25 Pa. Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P182 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P182 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 32 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 018

# 019 # 020 # 021 Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (a) Within 180 days of start-up of Source ID P182, the permittee shall conduct EPA reference method testing on Source ID P182 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential II.

III. TESTING REQUIREMENTS.

MONITORING REQUIREMENTS. # 016

# 017 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, (a) A “startup event” is the period of time from initiation of combustion firing until the unit reaches steady state operation. “Shutdown event” is the period of time during the reduction in load of the CT for the purposes of shutting down the source. “Steady-state operation” is operation of the CT when the rate of change in load, with respect to time, is zero. (b) A cold start is defined as a restart occurring after an extended shutdown (generally >72 hours). A warm start is a restart occurring after a weekend shutdown (generally 12 to 72 hours). A hot start is a restart occurring after an overnight shutdown (generally < 8 to 12 hours). (c) A cold start shall not last longer than 48 minutes, a warm start no longer than 42 minutes, a hot start no longer than 36 minutes, and a shutdown no longer than 13 minutes. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 33 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] # 022

# 023

# 024 Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions. across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P182 . (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P182: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P182 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P182. 3) The number of start-ups and shut-downs performed on Source ID P182 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 34 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4] # 025

# 026

# 027

# 028 Subpart A - General Provisions Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175.

Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address. (c) The permittee shall keep records of a current, valid purchase contract, tariff sheet or transportation contract obtained yearly from the natural gas supplier demonstrating compliance with the sulfur content limitation of the natural gas. (d) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C182). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C182A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). (a) The permittee shall submit the records required for Source ID P182 on an quarterly basis to demonstrate compliance with the conditions herein. The quarterly records shall contain the 12 consecutive rolling totals, where applicable. (b) The quarterly reports shall be submitted to the Department by April 30 (covering January through March), July 31 (covering April through June), October 31 (covering July through September), and January 31 (covering October through December of the previous calendar year). The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 35 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] # 029 # 030

# 031
# 032 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. What are my general requirements for complying with this subpart?

What are my general requirements for complying with this subpart? Plan approval terms and conditions. Associate Director Office of Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P182. (a) You must operate and maintain your stationary combustion turbine, air pollution control equipment, and monitoring equipment in a manner consistent with good air pollution control practices for minimizing emissions at all times including during startup, shutdown, and malfunction. (b) When an affected unit with heat recovery utilizes a common steam header with one or more combustion turbines, the owner or operator shall either: (1) Determine compliance with the applicable NOX emissions limits by measuring the emissions combined with the emissions from the other unit(s) utilizing the common heat recovery unit; or (2) Develop, demonstrate, and provide information satisfactory to the Administrator on methods for apportioning the combined gross energy output from the heat recovery unit for each of the affected combustion turbines. The Administrator may approve such demonstrated substitute methods for apportioning the combined gross energy output measured at the steam turbine whenever the demonstration ensures accurate estimation of emissions related under this part. The permittee shall comply with the work practicce standards of 40 CFR Part 60 Section 60.4333 for Source ID P182. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalgas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR VI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 36 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 033 # 034 # 035 # 036 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Does this subpart apply to my stationary combustion turbine? a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, , the air contaminant emissions from Source ID P182 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the total combined hours of startups and shutdowns for Source ID P182 shall not exceed 210 hours in any 12 consecutive month period. Source ID P182 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 37 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Source ID: Source Name:

P183 CCGT #3 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P183 CNTL

C183 CNTL

C183A STAC

S183 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P183 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P183 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from each turbine when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P183 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P183 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P183 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P183 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P183, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 38 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source IDs P183 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P183 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P183 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P183 shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P183 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P183 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 39 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012

# 013
# 014

# 015 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP (a) Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the emissions from Source ID P183 shall not at anytime exceed any of the following limitations during a startup/shut down event : 1) The carbon monoxide (CO) emissions shall not exceed 1980 lbs/each cold start, 1394 lbs/each warm start, 757 lbs/each hot start, and 201 lbs/each shutdown. 2) The total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions shall not exceed 6.3 lbs/each cold start, 5.67 lbs/each warm start, 4.0 lbs/each hot start, and 1.6 lbs/each shutdown. 3) The nitrogen oxides (NOx) emissions shall not exceed 101.1 lbs/each cold start, 89.3 lbs/each warm start, 68.7 lbs/each hot start, and 35.4 lbs/each shutdown. 4) The volatile organic compounds (VOC) emissions shall not exceed 234.0 lbs/each cold start, 185.0 lbs/each warm start, 102.0 lbs/each hot start, and 34.0 lbs/each shutdown. [Compliance with this streamlined plan approval requirement assures compliance with the provisions of 25 Pa Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P183 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P183 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 40 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 018

# 019 # 020 # 021 Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (a) Within 180 days of start-up of Source ID P183, the permittee shall conduct EPA reference method testing on Source ID P183 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential II.

III. TESTING REQUIREMENTS.

MONITORING REQUIREMENTS. # 016

# 017 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, (a) A “startup event” is the period of time from initiation of combustion firing until the unit reaches steady state operation. “Shutdown event” is the period of time during the reduction in load of the CT for the purposes of shutting down the source. “Steady-state operation” is operation of the CT when the rate of change in load, with respect to time, is zero. (b) A cold start is defined as a restart occurring after an extended shutdown (generally >72 hours). A warm start is a restart occurring after a weekend shutdown (generally 12 to 72 hours). A hot start is a restart occurring after an overnight shutdown (generally < 8 to 12 hours). (c) A cold start shall not last longer than 48 minutes, a warm start no longer than 42 minutes, a hot start no longer than 36 minutes, and a shutdown no longer than 13 minutes. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 41 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] # 022

# 023

# 024 Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions. across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P183. (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P183: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P183 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P183. 3) The number of start-ups and shut-downs performed on Source ID P183 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 42 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §145.213.]

[25 Pa. Code §145.223.]

[25 Pa. Code §127.12b]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4] # 025

# 026

# 027

# 028 Subpart A - General Provisions Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175.

Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address. (c) The permittee shall keep records of a current, valid purchase contract, tariff sheet or transportation contract obtained yearly from the natural gas supplier demonstrating compliance with the sulfur content limitation of the natural gas. (d) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C183). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C183A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). (a) The permittee shall submit the records required for Source ID P183 on an quarterly basis to demonstrate compliance with the conditions herein. The quarterly records shall contain the 12 consecutive rolling totals, where applicable. (b) The quarterly reports shall be submitted to the Department by April 30 (covering January through March), July 31 (covering April through June), October 31 (covering July through September), and January 31 (covering October through December of the previous calendar year). The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 43 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] # 029 # 030

# 031
# 032 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. What are my general requirements for complying with this subpart?

What are my general requirements for complying with this subpart? Plan approval terms and conditions. Associate Director Office of Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P183. (a) You must operate and maintain your stationary combustion turbine, air pollution control equipment, and monitoring equipment in a manner consistent with good air pollution control practices for minimizing emissions at all times including during startup, shutdown, and malfunction. (b) When an affected unit with heat recovery utilizes a common steam header with one or more combustion turbines, the owner or operator shall either: (1) Determine compliance with the applicable NOX emissions limits by measuring the emissions combined with the emissions from the other unit(s) utilizing the common heat recovery unit; or (2) Develop, demonstrate, and provide information satisfactory to the Administrator on methods for apportioning the combined gross energy output from the heat recovery unit for each of the affected combustion turbines. The Administrator may approve such demonstrated substitute methods for apportioning the combined gross energy output measured at the steam turbine whenever the demonstration ensures accurate estimation of emissions related under this part. The permittee shall comply with the work practicce standards of 40 CFR Part 60 Section 60.4333 for Source ID P183. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalgas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR VI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 44 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 033 # 034 # 035 # 036 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Does this subpart apply to my stationary combustion turbine? a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, , the air contaminant emissions from Source ID P183 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the total combined hours of startups and shutdowns for Source ID P183 shall not exceed 210 hours in any 12 consecutive month period. Source ID P183 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001E

Page 45 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### SECTION E. Alternative Operation Requirements. No Alternative Operations exist for this Plan Approval facility.55-00001E

Page 46 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### SECTION F. Emission Restriction Summary. No emission restrictions listed in this section of the permit.55-00001E

Page 47 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042017 DEP Auth ID: 

### SECTION G. Miscellaneous.

# ****** End of Report ******55-00001F

Page 1 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: March 31, 2017 September 26, 2014 

### PLAN APPROVAL Issue Date: Effective Date: In accordance with the provisions of the Air Pollution Control Act, the Act of January 8, 1960, P.L. 2119, as amended, and 25 Pa. Code Chapter 127, the Owner, [and Operator if noted] (hereinafter referred to as permittee) identified below is authorized by the Department of Environmental Protection (Department) to construct, install, modify or reactivate the air emission source(s) more fully described in the site inventory list. This Facility is subject to all terms and conditions specified in this plan approval. Nothing in this plan approval relieves the permittee from its obligations to comply with all applicable Federal, State and Local laws and regulations. The regulatory or statutory authority for each plan approval condition is set forth in brackets. All terms and conditions in this permit are federally enforceable unless otherwise designated as "State-Only" requirements. Plan Approval No. 55-00001F Mailing Address: Plant: HUMMEL STA LLC/SUNBURY NAT GAS PLT

PO BOX 517 OLD TRAIL RD SHAMOKIN DAM, PA 17876-0517 Location: 55 Snyder County

HUMMEL STA LLC
Responsible Official Name: Title: Name: Title: Phone: [Signature] _________________________________________

ED GRIEGEL VP OPERATIONS MARK CRAWFORD EHS MANAGER (570) 884 - 1247 SIC Code: 4911 Trans. & Utilities - Electric Services 55915 Shamokin Dam Borough

MUHAMMAD Q. ZAMAN, ENVIRONMENTAL PROGRAM MANAGER, NORTHCENTRAL REGION Owner Information Plant Information Name:

Phone: (570) 884 - 1241 Expiration Date: Revision Date: Revision Type: September 26, 2014

August 8, 2014 Transfer

Plan Approval Contact Person Federal Tax Id - Plant Code: 47-1427528-01 COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION

AIR QUALITY PROGRAM55-00001F

Page 2 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: Plan Approval Description This plan approval is for the constuction of a 225,000 GPM cooling tower.55-00001F

Page 3 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### SECTION A. Table of Contents Section A. Facility/Source Identification Section B. General Plan Approval Requirements

Section C. Site Level Plan Approval Requirements

Section D. Source Level Plan Approval Requirements

Section E. Alternative Operating Scenario(s)
Section F. Emission Restriction Summary #001 #002 #003 #004 #005 #006 #007 #008 #009 #010 #011 #012 #013 Definitions

Future Adoption of Requirements Plan Approval Temporary Operation Content of Applications Public Records and Confidential Information Plan Approval terms and conditions. Transfer of Plan Approvals Inspection and Entry Plan Approval Changes for Cause Circumvention Submissions Risk Management Compliance Requirement Table of Contents Plan Approval Inventory List

C-I: Restrictions C-II: Testing Requirements C-III: Monitoring Requirements C-IV: Recordkeeping Requirements C-V: Reporting Requirements C-VI: Work Practice Standards C-VII: Additional Requirements C-VIII: Compliance Certification C-IX: Compliance Schedule D-I: Restrictions D-II: Testing Requirements D-III: Monitoring Requirements D-IV: Recordkeeping Requirements D-V: Reporting Requirements D-VI: Work Practice Standards D-VII: Additional Requirements Note: These same sub-sections are repeated for each source! E-I: Restrictions E-II: Testing Requirements E-III: Monitoring Requirements E-IV: Recordkeeping Requirements E-V: Reporting Requirements E-VI: Work Practice Standards E-VII: Additional Requirements55-00001F

Page 4 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### SECTION A. Table of Contents Section G. Miscellaneous55-00001F

Page 5 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### PERMIT MAPS PROC P800 CNTL

C800 STAC

S800 

### SECTION A. Plan Approval Inventory List P800 C800 COOLING TOWER

DRIFT ELIMINATOR Source ID Source Name Capacity/Throughput Fuel/Material S800 COOLING TOWER STACK55-00001F

Page 6 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: #001 #002
#003

#004 #005 Definitions Future Adoption of Requirements Plan Approval Temporary Operation

Content of Applications Public Records and Confidential Information

Words and terms that are not otherwise defined in this plan approval shall have the meanings set forth in Section 3 of the Air Pollution Control Act (35 P.S. § 4003) and 25 Pa. Code § 121.1. The issuance of this plan approval does not prevent the future adoption by the Department of any rules, regulations or standards, or the issuance of orders necessary to comply with the requirements of the Federal Clean Air Act or the Pennsylvania Air Pollution Control Act, or to achieve or maintain ambient air quality standards. The issuance of this plan approval shall not be construed to limit the Department's enforcement authority. This plan approval authorizes temporary operation of the source(s) covered by this plan approval provided the following conditions are met. (a) When construction, installation, modification, or reactivation is being conducted, the permittee shall provide written notice to the Department of the completion of the activity approved by this plan approval and the permittee's intent to commence operation at least five (5) working days prior to the completion of said activity. The notice shall state when the activity will be completed and when the permittee expects to commence operation. When the activity involves multiple sources on different time schedules, notice is required for the commencement of operation of each source. (b) Pursuant to 25 Pa. Code § 127.12b (d), temporary operation of the source(s) is authorized to facilitate the shakedown of sources and air cleaning devices, to permit operations pending the issuance of a permit under 25 Pa. Code Chapter 127, Subchapter F (relating to operating permits) or Subchapter G (relating to Title V operating permits) or to permit the evaluation of the air contaminant aspects of the source. (c) This plan approval authorizes a temporary operation period not to exceed 180 days from the date of commencement of operation, provided the Department receives notice from the permittee pursuant to paragraph (a), above. (d) The permittee may request an extension of the 180-day shakedown period if further evaluation of the air contamination aspects of the source(s) is necessary. The request for an extension shall be submitted, in writing, to the Department at least 15 days prior to the end of the initial 180-day shakedown period and shall provide a description of the compliance status of the source, a detailed schedule for establishing compliance, and the reasons compliance has not been established. This temporary operation period will be valid for a limited time and may be extended for additional limited periods, each not to exceed 180 days. (e) The notice submitted by the permittee pursuant to subpart (a) above, prior to the expiration of the plan approval, shall modify the plan approval expiration date on Page 1 of this plan approval. The new plan approval expiration date shall be 180 days from the date of commencement of operation. The permittee shall maintain and operate the sources and associated air cleaning devices in accordance with good engineering practice as described in the plan approval application submitted to the Department. (a) The records, reports or information obtained by the Department or referred to at public hearings shall be available to the public, except as provided in paragraph (b) of this condition. (b) Upon cause shown by the permittee that the records, reports or information, or a particular portion thereof, but not emission data, to which the Department has access under the act, if made public, would divulge production or sales figures or methods, processes or production unique to that person or would otherwise tend to affect adversely the 

### SECTION B. General Plan Approval Requirements [25 Pa. Code § 121.1] [25 Pa. Code § 127.12b (a) (b)] [25 Pa. Code § 127.12b]

[25 Pa. Code § 127.12(a) (10)] [25 Pa. Code §§ 127.12(c) and (d) & 35 P.S. § 4013.2]55-00001F

Page 7 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: #006

#007

#008 Plan Approval terms and conditions.

Transfer of Plan Approvals

Inspection and Entry

competitive position of that person by revealing trade secrets, including intellectual property rights, the Department will consider the record, report or information, or particular portion thereof confidential in the administration of the act. The Department will implement this section consistent with sections 112(d) and 114(c) of the Clean Air Act (42 U.S.C.A. § § 7412(d) and 7414(c)). Nothing in this section prevents disclosure of the report, record or information to Federal, State or local representatives as necessary for purposes of administration of Federal, State or local air pollution control laws, or when relevant in a proceeding under the act. [Additional authority for this condition is derived from 25 Pa. Code Section 127.13] (a) This plan approval will be valid for a limited time, as specified by the expiration date contained on Page 1 of this plan approval. Except as provided in § § 127.11a and 127.215 (relating to reactivation of sources; and reactivation), at the end of the time, if the construction, modification, reactivation or installation has not been completed, a new plan approval application or an extension of the previous approval will be required. (b) If construction has commenced, but cannot be completed before the expiration of this plan approval, an extension of the plan approval must be obtained to continue construction. To allow adequate time for departmental action, a request for the extension shall be postmarked at least thirty (30) days prior to the expiration date. The request for an extension shall include the following: (i) A justification for the extension, (ii) A schedule for the completion of the construction If construction has not commenced before the expiration of this plan approval, then a new plan approval application must be submitted and approval obtained before construction can commence. (c) If the construction, modification or installation is not commenced within 18 months of the issuance of this plan approval or if there is more than an 18-month lapse in construction, modification or installation, a new plan approval application that meets the requirements of 25 Pa. Code Chapter 127, Subchapter B (related to plan approval requirements), Subchapter D (related to prevention of significant deterioration of air quality), and Subchapter E (related to new source review) shall be submitted. The Department may extend the 18-month period upon a satisfactory showing that an extension is justified. (a) This plan approval may not be transferred from one person to another except when a change of ownership is demonstrated to the satisfaction of the Department and the Department approves the transfer of the plan approval in writing. (b) Section 127.12a (relating to compliance review) applies to a request for transfer of a plan approval. A compliance review form shall accompany the request. (c) This plan approval is valid only for the specific source and the specific location of the source as described in the application. (a) Pursuant to 35 P.S. § 4008, no person shall hinder, obstruct, prevent or interfere with the Department or its personnel in the performance of any duty authorized under the Air Pollution Control Act. (b) The permittee shall also allow the Department to have access at reasonable times to said sources and associated air cleaning devices with such measuring and recording equipment, including equipment recording visual observations, as the Department deems necessary and proper for performing its duties and for the effective enforcement of the Air Pollution Control Act and regulations adopted under the act. 

### SECTION B. General Plan Approval Requirements
[25 Pa. Code § 127.12b]

[25 Pa. Code § 127.32]

[25 Pa. Code § 127.12(4) & 35 P.S. § 4008 & § 114 of the CAA]55-00001F

Page 8 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: #009

#010

#011

#012 Plan Approval Changes for Cause

Circumvention

Submissions
Risk Management

(c) Nothing in this plan approval condition shall limit the ability of the Environmental Protection Agency to inspect or enter the premises of the permittee in accordance with Section 114 or other applicable provisions of the Clean Air Act. This plan approval may be terminated, modified, suspended or revoked and reissued if one or more of the following applies: (a) The permittee constructs or operates the source subject to the plan approval in violation of the act, the Clean Air Act, the regulations promulgated under the act or the Clean Air Act, a plan approval or permit or in a manner that causes air pollution. (b) The permittee fails to properly or adequately maintain or repair an air pollution control device or equipment attached to or otherwise made a part of the source. (c) The permittee fails to submit a report required by this plan approval. (d) The Environmental Protection Agency determines that this plan approval is not in compliance with the Clean Air Act or the regulations thereunder. (a) The permittee, or any other person, may not circumvent the new source review requirements of 25 Pa. Code Chapter 127, Subchapter E by causing or allowing a pattern of ownership or development, including the phasing, staging, delaying or engaging in incremental construction, over a geographic area of a facility which, except for the pattern of ownership or development, would otherwise require a permit or submission of a plan approval application. (b) No person may permit the use of a device, stack height which exceeds good engineering practice stack height, dispersion technique or other technique which, without resulting in reduction of the total amount of air contaminants emitted, conceals or dilutes an emission of air contaminants which would otherwise be in violation of this plan approval, the Air Pollution Control Act or the regulations promulgated thereunder, except that with prior approval of the Department, the device or technique may be used for control of malodors. Reports, test data, monitoring data, notifications shall be submitted to the: Regional Air Program Manager PA Department of Environmental Protection (At the address given on the plan approval transmittal letter or otherwise notified) (a) If required by Section 112(r) of the Clean Air Act, the permittee shall develop and implement an accidental release program consistent with requirements of the Clean Air Act, 40 CFR Part 68 (relating to chemical accident prevention provisions) and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act (P.L. 106-40). (b) The permittee shall prepare and implement a Risk Management Plan (RMP) which meets the requirements of Section 112(r) of the Clean Air Act, 40 CFR Part 68 and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act when a regulated substance listed in 40 CFR § 68.130 is present in a process in more than the listed threshold quantity at the facility. The permittee shall submit the RMP to the Environmental Protection Agency according to the following schedule and requirements: (1) The permittee shall submit the first RMP to a central point specified by the Environmental Protection Agency no later than the latest of the following: 

### SECTION B. General Plan Approval Requirements [25 Pa. Code 127.13a]

[25 Pa. Code §§ 121.9 & 127.216]

[25 Pa. Code § 127.12c]
[25 Pa. Code § 127.12(9) & 40 CFR Part 68]55-00001F

Page 9 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: #013 Compliance Requirement

(i) Three years after the date on which a regulated substance is first listed under § 68.130; or, (ii) The date on which a regulated substance is first present above a threshold quantity in a process. (2) The permittee shall submit any additional relevant information requested by the Department or the Environmental Protection Agency concerning the RMP and shall make subsequent submissions of RMPs in accordance with 40 CFR § 68.190. (3) The permittee shall certify that the RMP is accurate and complete in accordance with the requirements of 40 CFR Part 68, including a checklist addressing the required elements of a complete RMP. (c) As used in this plan approval condition, the term "process" shall be as defined in 40 CFR § 68.3. The term "process" means any activity involving a regulated substance including any use, storage, manufacturing, handling, or on-site movement of such substances or any combination of these activities. For purposes of this definition, any group of vessels that are interconnected, or separate vessels that are located such that a regulated substance could be involved in a potential release, shall be considered a single process. A person may not cause or permit the operation of a source subject to § 127.11 (relating to plan approval requirements), unless the source and air cleaning devices identified in the application for the plan approval and the plan approval issued to the source, are operated and maintained in accordance with specifications in the application and conditions in the plan approval issued by the Department. A person may not cause or permit the operation of an air contamination source subject to this chapter in a manner inconsistent with good operating practices. 

### SECTION B. General Plan Approval Requirements

[25 Pa. Code § 127.25]55-00001F

Page 10 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: I. RESTRICTIONS. 

### Emission Restriction(s). # 001

# 002

# 003 [25 Pa. Code §123.1]

[25 Pa. Code §123.41]
[25 Pa. Code §123.42] Prohibition of certain fugitive emissions

Limitations
Exceptions (a) No person may permit the emission into the outdoor atmosphere of fugitive air contaminants from a source other than the following: (1) Construction or demolition of buildings or structures. (2) Grading, paving and maintenance of roads and streets. (3) Use of roads and streets. Emissions from material in or on trucks, railroad cars and other vehicular equipment are not considered as emissions from use of roads and streets. (4) Clearing of land. (5) Stockpiling of materials. (6) Open burning operations. No person may permit the emission into the outdoor atmosphere of visible air contaminants in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 20% for a period or periods aggregating more than three minutes in any 1 hour. (2) Equal to or greater than 60% at any time. The emission limitations of 25 Pa. Code Section 123.41 shall not apply when: (1) The presence of uncombined water is the only reason for failure of the emission to meet the limitations; (2) The emission results from the operation of equipment used solely to train and test persons in observing the opacity of visible emissions; (3) The emission results from sources specified in 25 Pa. Code Section 123.1(a)(1)-(9). II. III. IV. TESTING REQUIREMENTS. MONITORING REQUIREMENTS. RECORDKEEPING REQUIREMENTS. No additional testing requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional monitoring requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional record keeping requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). 

### SECTION C. Site Level Plan Approval Requirements55-00001F

Page 11 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: # 004

# 005 # 006 [25 Pa. Code §127.12b]

[25 Pa. Code §121.7] [25 Pa. Code §123.31] Plan approval terms and conditions.

Prohibition of air pollution. Limitations (a) The permittee shall report malfunctions which occur at this facility to the Department. A malfunction is any sudden, infrequent, and not reasonably preventable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner. Failures that are caused in part by poor maintenance or careless operation are not malfunctions. (b) Failures that are caused in part by poor maintenance or careless operation shall be reported as excess emissions or deviations from this plan approval requirements. (c) When the malfunction, excess emissions or deviation from this plan approval requirements poses an imminent and substantial danger to the public health and safety or potential harm to the environment, the permittee shall notify the Department by telephone no later than one (1) hour after the incident. (d) Any malfunction, excess emissions or deviation from this plan approval requirements that is not subject to the notice requirements of subsection (c) of this permit condition shall be reported to the Department within twenty-four (24) hours of discovery. In notifying the Department, the permittee shall describe the following: (i) name and location of the facility; (ii) nature and cause of the malfunction or breakdown; (iii) time when the malfunction or breakdown was first observed; (iv) expected duration of excess emissions; (v) estimated rate of emissions; and (vi) corrective actions or preventative measures taken. (e) The permittee shall notify the Department immediately when corrective measures have been accomplished. (f) Upon the request of the Department, the permittee shall submit a full written report to the Regional Air Program Manager within fifteen (15) days of the malfunction, excess emissions or deviations from this plan approval requirements.
No person may permit air pollution as that term is defined in the act (The Air Pollution Control Act (35 P.S. §§ 4001-4015)). No person may permit the emission into the outdoor atmosphere of any malodorous air contaminants from any source in a manner that the malodors are detectable outside the property of the person on whose land the source is being operated. VIII. COMPLIANCE CERTIFICATION. IX. COMPLIANCE SCHEDULE. V.

VI. VII. REPORTING REQUIREMENTS.

WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). 

### SECTION C. Site Level Plan Approval Requirements

No additional compliance certifications exist except as provided in other sections of this plan approval including Section B (relating to Plan Approval General Requirements).55-00001F

Page 12 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: No compliance milestones exist. 

### SECTION C. Site Level Plan Approval Requirements55-00001F

Page 13 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: Source ID: Source Name:

P800 COOLING TOWER

Source Capacity/Throughput:

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] # 002
# 003
# 004

# 005 Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. The permittee shall take a grab sample of the cooling tower circulating water and analyze it on a weekly basis to determine the total solids content of the cooling tower circulating water. The permittee shall continuously monitor the circulating water flow rate in units of gallons per minute and the circulating water's total dissolved solids content via conductivity of Source ID P800. The circulating water flow rate shall be recorded and stored on a computerized system. (a) The permittee shall keep records of the weekly grab sample results of the circulating water's total solids content as well as the results of any additional grab samples of the circulating water contained in Source ID P800. (b) The permittee shall keep records of the supporting calculations to verify compliance with the total particulate matter emission limitations in pounds per hour on a weekly and monthly basis and tons in any 12 consecutive month period. These records shall be retained for a minimum of five (5) years and shall be made available to the Department upon request. The permittee shall submit reports to the Department on a semi-annual basis that include the supporting calculations used to verify compliance with total particulate matter emission limitation in any 12 consecutive month period. The semi-annual reports shall be submitted to the Department no later than March 1 (for January 1 through December 31 of the previous year) and September 1 (for July 1 of the previous year through June 30 of the current year). PROC P800 CNTL

C800 STAC

S800

II.
III.
IV.

V. TESTING REQUIREMENTS. MONITORING REQUIREMENTS.
RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS. I. RESTRICTIONS. Emission Restriction(s). # 001 [25 Pa. Code §127.12b] Plan approval terms and conditions. {Compliance with the requirement specified in this streamlined condition assures compliance with the provisions in 25 Pa.Code Section 123.13} Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, the total particulate matter (including PM10 and PM2.5) emitted from Source ID P800 shall not exceed 2.82 pounds per hour and 12.3 tons in any 12 consecutive month period. 

### SECTION D. Source Level Plan Approval Requirements55-00001F

Page 14 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] # 006 # 007 # 008

# 009 Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12,Source ID P800 shall be equipped with a drift eliminator (ID C800). Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, ID C800 shall be capable of achieving a maximum drift rate of 0.0005%. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, (a) the circulating water flow rate of Source ID P800 shall not exceed 225,000 gallons per minute at any time. (b) the total solids concentration of the circulating water in Source ID P800 shall not exceed 5,000 ppm at any time. (c) These operating parameter requirements may be revised based upon newly available data and manufacturers recommendations for Source ID P800. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, Source ID P800 shall be a mechanical-draft 14 cell cooling tower, or a cooling tower of equivalent design as approved by the Department. Additionally, no chromium based water treatment chemicals shall be used in Source ID P800. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). VI. VII. WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001F

Page 15 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### SECTION E. Alternative Operation Requirements. No Alternative Operations exist for this Plan Approval facility.55-00001F

Page 16 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### SECTION F. Emission Restriction Summary. No emission restrictions listed in this section of the permit.55-00001F

Page 17 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042018 DEP Auth ID: 

### SECTION G. Miscellaneous.

# ****** End of Report ******55-00001G

Page 1 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: March 31, 2017 September 26, 2014 

### PLAN APPROVAL Issue Date: Effective Date: In accordance with the provisions of the Air Pollution Control Act, the Act of January 8, 1960, P.L. 2119, as amended, and 25 Pa. Code Chapter 127, the Owner, [and Operator if noted] (hereinafter referred to as permittee) identified below is authorized by the Department of Environmental Protection (Department) to construct, install, modify or reactivate the air emission source(s) more fully described in the site inventory list. This Facility is subject to all terms and conditions specified in this plan approval. Nothing in this plan approval relieves the permittee from its obligations to comply with all applicable Federal, State and Local laws and regulations. The regulatory or statutory authority for each plan approval condition is set forth in brackets. All terms and conditions in this permit are federally enforceable unless otherwise designated as "State-Only" requirements. Plan Approval No. 55-00001G Mailing Address: Plant: HUMMEL STA LLC/SUNBURY NAT GAS PLT

PO BOX 517 OLD TRAIL RD SHAMOKIN DAM, PA 17876-0517 Location: 55 Snyder County

HUMMEL STA LLC
Responsible Official Name: Title: Name: Title: Phone: [Signature] _________________________________________

ED GRIEGEL VP OPERATIONS MARK CRAWFORD EHS MANAGER (570) 884 - 1247 SIC Code: 4911 Trans. & Utilities - Electric Services 55915 Shamokin Dam Borough

MUHAMMAD Q. ZAMAN, ENVIRONMENTAL PROGRAM MANAGER, NORTHCENTRAL REGION Owner Information Plant Information Name:

Phone: (570) 884 - 1241 Expiration Date: Revision Date: Revision Type: September 26, 2014

April 1, 2013 Transfer

Plan Approval Contact Person Federal Tax Id - Plant Code: 47-1427528-01 COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION

AIR QUALITY PROGRAM55-00001G

Page 2 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Plan Approval Description This plan approval is for the repowering of the Sunbury Generation facility. This project will be for the construction of three (3) natural gas fired F class combustion turbines coupled with three (3) heat recovery steam generators (HSRGs) equipped withnatural gas fired duct burners. The project will also be for the construction of a natural gas fired auxiliary boiler to assist with startup and shutdown activities and a small natural gas fired dew point heater. As part of the project all of the facility's existing coal fired utility boilers will be permanently retired.55-00001G

Page 3 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### SECTION A. Table of Contents Section A. Facility/Source Identification Section B. General Plan Approval Requirements

Section C. Site Level Plan Approval Requirements

Section D. Source Level Plan Approval Requirements

Section E. Alternative Operating Scenario(s)
Section F. Emission Restriction Summary #001 #002 #003 #004 #005 #006 #007 #008 #009 #010 #011 #012 #013 Definitions

Future Adoption of Requirements Plan Approval Temporary Operation Content of Applications Public Records and Confidential Information Plan Approval terms and conditions. Transfer of Plan Approvals Inspection and Entry Plan Approval Changes for Cause Circumvention Submissions Risk Management Compliance Requirement Table of Contents Plan Approval Inventory List

C-I: Restrictions C-II: Testing Requirements C-III: Monitoring Requirements C-IV: Recordkeeping Requirements C-V: Reporting Requirements C-VI: Work Practice Standards C-VII: Additional Requirements C-VIII: Compliance Certification C-IX: Compliance Schedule D-I: Restrictions D-II: Testing Requirements D-III: Monitoring Requirements D-IV: Recordkeeping Requirements D-V: Reporting Requirements D-VI: Work Practice Standards D-VII: Additional Requirements Note: These same sub-sections are repeated for each source! E-I: Restrictions E-II: Testing Requirements E-III: Monitoring Requirements E-IV: Recordkeeping Requirements E-V: Reporting Requirements E-VI: Work Practice Standards E-VII: Additional Requirements55-00001G

Page 4 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### SECTION A. Table of Contents Section G. Miscellaneous55-00001G

Page 5 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### PERMIT MAPS CU 070 CU 075 PROC P181 PROC P182 PROC P183 STAC

S070 STAC S075 CNTL C181 CNTL C182 CNTL C183 CNTL

C181A CNTL C182A CNTL C183A STAC

S181 STAC S182 STAC S183 FML FML11 FML FML11 FML FML11 FML FML11 FML FML11 

### SECTION A. Plan Approval Inventory List 070 075 P181 P182 P183 C181 C181A C182 C182A C183 C183A AUX BOILER (REPOWER)

DEW POINT HEATER CCGT #1 AND DUCT BURNER CCGT #2 AND DUCT BURNER CCGT #3 AND DUCT BURNER SCR FOR CCGT 1 OXIDATION CATALYST FOR CCGT 1 SCR FOR CCGT 2 OXIDATION CATALYST FOR CCGT 2 SCR FOR CCGT 3 OXIDATION CATALYST FOR CCGT 3 106.000 15.000 2,538.000 2,538.000 2,538.000 MMBTU/HR

MMBTU/HR MMBTU/HR MMBTU/HR MMBTU/HR Source ID Source Name Capacity/Throughput Fuel/Material

FML11 NATURAL GAS LINE S070 S075 S181 S182 S183 AUX BOILER STACK

DEW POINT HEATER STACK CCGT #1 STACK CCGT #2 STACK CCGT #3 STACK55-00001G

Page 6 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: #001 #002
#003

#004 #005 Definitions Future Adoption of Requirements Plan Approval Temporary Operation

Content of Applications Public Records and Confidential Information

Words and terms that are not otherwise defined in this plan approval shall have the meanings set forth in Section 3 of the Air Pollution Control Act (35 P.S. § 4003) and 25 Pa. Code § 121.1. The issuance of this plan approval does not prevent the future adoption by the Department of any rules, regulations or standards, or the issuance of orders necessary to comply with the requirements of the Federal Clean Air Act or the Pennsylvania Air Pollution Control Act, or to achieve or maintain ambient air quality standards. The issuance of this plan approval shall not be construed to limit the Department's enforcement authority. This plan approval authorizes temporary operation of the source(s) covered by this plan approval provided the following conditions are met. (a) When construction, installation, modification, or reactivation is being conducted, the permittee shall provide written notice to the Department of the completion of the activity approved by this plan approval and the permittee's intent to commence operation at least five (5) working days prior to the completion of said activity. The notice shall state when the activity will be completed and when the permittee expects to commence operation. When the activity involves multiple sources on different time schedules, notice is required for the commencement of operation of each source. (b) Pursuant to 25 Pa. Code § 127.12b (d), temporary operation of the source(s) is authorized to facilitate the shakedown of sources and air cleaning devices, to permit operations pending the issuance of a permit under 25 Pa. Code Chapter 127, Subchapter F (relating to operating permits) or Subchapter G (relating to Title V operating permits) or to permit the evaluation of the air contaminant aspects of the source. (c) This plan approval authorizes a temporary operation period not to exceed 180 days from the date of commencement of operation, provided the Department receives notice from the permittee pursuant to paragraph (a), above. (d) The permittee may request an extension of the 180-day shakedown period if further evaluation of the air contamination aspects of the source(s) is necessary. The request for an extension shall be submitted, in writing, to the Department at least 15 days prior to the end of the initial 180-day shakedown period and shall provide a description of the compliance status of the source, a detailed schedule for establishing compliance, and the reasons compliance has not been established. This temporary operation period will be valid for a limited time and may be extended for additional limited periods, each not to exceed 180 days. (e) The notice submitted by the permittee pursuant to subpart (a) above, prior to the expiration of the plan approval, shall modify the plan approval expiration date on Page 1 of this plan approval. The new plan approval expiration date shall be 180 days from the date of commencement of operation. The permittee shall maintain and operate the sources and associated air cleaning devices in accordance with good engineering practice as described in the plan approval application submitted to the Department. (a) The records, reports or information obtained by the Department or referred to at public hearings shall be available to the public, except as provided in paragraph (b) of this condition. (b) Upon cause shown by the permittee that the records, reports or information, or a particular portion thereof, but not emission data, to which the Department has access under the act, if made public, would divulge production or sales figures or methods, processes or production unique to that person or would otherwise tend to affect adversely the 

### SECTION B. General Plan Approval Requirements [25 Pa. Code § 121.1] [25 Pa. Code § 127.12b (a) (b)] [25 Pa. Code § 127.12b]

[25 Pa. Code § 127.12(a) (10)] [25 Pa. Code §§ 127.12(c) and (d) & 35 P.S. § 4013.2]55-00001G

Page 7 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: #006

#007

#008 Plan Approval terms and conditions.

Transfer of Plan Approvals

Inspection and Entry

competitive position of that person by revealing trade secrets, including intellectual property rights, the Department will consider the record, report or information, or particular portion thereof confidential in the administration of the act. The Department will implement this section consistent with sections 112(d) and 114(c) of the Clean Air Act (42 U.S.C.A. § § 7412(d) and 7414(c)). Nothing in this section prevents disclosure of the report, record or information to Federal, State or local representatives as necessary for purposes of administration of Federal, State or local air pollution control laws, or when relevant in a proceeding under the act. [Additional authority for this condition is derived from 25 Pa. Code Section 127.13] (a) This plan approval will be valid for a limited time, as specified by the expiration date contained on Page 1 of this plan approval. Except as provided in § § 127.11a and 127.215 (relating to reactivation of sources; and reactivation), at the end of the time, if the construction, modification, reactivation or installation has not been completed, a new plan approval application or an extension of the previous approval will be required. (b) If construction has commenced, but cannot be completed before the expiration of this plan approval, an extension of the plan approval must be obtained to continue construction. To allow adequate time for departmental action, a request for the extension shall be postmarked at least thirty (30) days prior to the expiration date. The request for an extension shall include the following: (i) A justification for the extension, (ii) A schedule for the completion of the construction If construction has not commenced before the expiration of this plan approval, then a new plan approval application must be submitted and approval obtained before construction can commence. (c) If the construction, modification or installation is not commenced within 18 months of the issuance of this plan approval or if there is more than an 18-month lapse in construction, modification or installation, a new plan approval application that meets the requirements of 25 Pa. Code Chapter 127, Subchapter B (related to plan approval requirements), Subchapter D (related to prevention of significant deterioration of air quality), and Subchapter E (related to new source review) shall be submitted. The Department may extend the 18-month period upon a satisfactory showing that an extension is justified. (a) This plan approval may not be transferred from one person to another except when a change of ownership is demonstrated to the satisfaction of the Department and the Department approves the transfer of the plan approval in writing. (b) Section 127.12a (relating to compliance review) applies to a request for transfer of a plan approval. A compliance review form shall accompany the request. (c) This plan approval is valid only for the specific source and the specific location of the source as described in the application. (a) Pursuant to 35 P.S. § 4008, no person shall hinder, obstruct, prevent or interfere with the Department or its personnel in the performance of any duty authorized under the Air Pollution Control Act. (b) The permittee shall also allow the Department to have access at reasonable times to said sources and associated air cleaning devices with such measuring and recording equipment, including equipment recording visual observations, as the Department deems necessary and proper for performing its duties and for the effective enforcement of the Air Pollution Control Act and regulations adopted under the act. 

### SECTION B. General Plan Approval Requirements
[25 Pa. Code § 127.12b]

[25 Pa. Code § 127.32]

[25 Pa. Code § 127.12(4) & 35 P.S. § 4008 & § 114 of the CAA]55-00001G

Page 8 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: #009

#010

#011

#012 Plan Approval Changes for Cause

Circumvention

Submissions
Risk Management

(c) Nothing in this plan approval condition shall limit the ability of the Environmental Protection Agency to inspect or enter the premises of the permittee in accordance with Section 114 or other applicable provisions of the Clean Air Act. This plan approval may be terminated, modified, suspended or revoked and reissued if one or more of the following applies: (a) The permittee constructs or operates the source subject to the plan approval in violation of the act, the Clean Air Act, the regulations promulgated under the act or the Clean Air Act, a plan approval or permit or in a manner that causes air pollution. (b) The permittee fails to properly or adequately maintain or repair an air pollution control device or equipment attached to or otherwise made a part of the source. (c) The permittee fails to submit a report required by this plan approval. (d) The Environmental Protection Agency determines that this plan approval is not in compliance with the Clean Air Act or the regulations thereunder. (a) The permittee, or any other person, may not circumvent the new source review requirements of 25 Pa. Code Chapter 127, Subchapter E by causing or allowing a pattern of ownership or development, including the phasing, staging, delaying or engaging in incremental construction, over a geographic area of a facility which, except for the pattern of ownership or development, would otherwise require a permit or submission of a plan approval application. (b) No person may permit the use of a device, stack height which exceeds good engineering practice stack height, dispersion technique or other technique which, without resulting in reduction of the total amount of air contaminants emitted, conceals or dilutes an emission of air contaminants which would otherwise be in violation of this plan approval, the Air Pollution Control Act or the regulations promulgated thereunder, except that with prior approval of the Department, the device or technique may be used for control of malodors. Reports, test data, monitoring data, notifications shall be submitted to the: Regional Air Program Manager PA Department of Environmental Protection (At the address given on the plan approval transmittal letter or otherwise notified) (a) If required by Section 112(r) of the Clean Air Act, the permittee shall develop and implement an accidental release program consistent with requirements of the Clean Air Act, 40 CFR Part 68 (relating to chemical accident prevention provisions) and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act (P.L. 106-40). (b) The permittee shall prepare and implement a Risk Management Plan (RMP) which meets the requirements of Section 112(r) of the Clean Air Act, 40 CFR Part 68 and the Federal Chemical Safety Information, Site Security and Fuels Regulatory Relief Act when a regulated substance listed in 40 CFR § 68.130 is present in a process in more than the listed threshold quantity at the facility. The permittee shall submit the RMP to the Environmental Protection Agency according to the following schedule and requirements: (1) The permittee shall submit the first RMP to a central point specified by the Environmental Protection Agency no later than the latest of the following: 

### SECTION B. General Plan Approval Requirements [25 Pa. Code 127.13a]

[25 Pa. Code §§ 121.9 & 127.216]

[25 Pa. Code § 127.12c]
[25 Pa. Code § 127.12(9) & 40 CFR Part 68]55-00001G

Page 9 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: #013 Compliance Requirement

(i) Three years after the date on which a regulated substance is first listed under § 68.130; or, (ii) The date on which a regulated substance is first present above a threshold quantity in a process. (2) The permittee shall submit any additional relevant information requested by the Department or the Environmental Protection Agency concerning the RMP and shall make subsequent submissions of RMPs in accordance with 40 CFR § 68.190. (3) The permittee shall certify that the RMP is accurate and complete in accordance with the requirements of 40 CFR Part 68, including a checklist addressing the required elements of a complete RMP. (c) As used in this plan approval condition, the term "process" shall be as defined in 40 CFR § 68.3. The term "process" means any activity involving a regulated substance including any use, storage, manufacturing, handling, or on-site movement of such substances or any combination of these activities. For purposes of this definition, any group of vessels that are interconnected, or separate vessels that are located such that a regulated substance could be involved in a potential release, shall be considered a single process. A person may not cause or permit the operation of a source subject to § 127.11 (relating to plan approval requirements), unless the source and air cleaning devices identified in the application for the plan approval and the plan approval issued to the source, are operated and maintained in accordance with specifications in the application and conditions in the plan approval issued by the Department. A person may not cause or permit the operation of an air contamination source subject to this chapter in a manner inconsistent with good operating practices. 

### SECTION B. General Plan Approval Requirements

[25 Pa. Code § 127.25]55-00001G

Page 10 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: I. RESTRICTIONS. 

### Emission Restriction(s). # 001

# 002 [25 Pa. Code §123.1]

[25 Pa. Code §123.2] Prohibition of certain fugitive emissions

Fugitive particulate matter The permittee shall not permit the emission of fugitive air contaminants into the outdoor atmosphere from a source other than the following: (1) Construction or demolition of buildings or structures. (2) Grading, paving and maintenance of roads and streets. (3) Use of roads and streets. Emissions from material in or on trucks, railroad cars and other vehicular equipment are not considered as emissions from use of roads and streets. (4) Clearing of land. (5) Stockpiling of materials. (6) Open burning operations. (7) Blasting in open pit mines. Emissions from drilling are not considered as emissions from blasting. (8) Sources and classes of sources other than those identified above, for which the permittee has obtained a determination from the Department that fugitive emissions from the source, after appropriate control, meet the following requirements: (a) the emissions are of minor significance with respect to causing air pollution; and (b) the emissions are not preventing or interfering with the attainment or maintenance of any ambient air quality standard. The permittee shall not permit fugitive particulate matter to be emitted into the outdoor atmosphere from a source specified in (1) through (8) in condition #001 if the emissions are visible at the point the emissions pass outside the permittee's property. # 003

# 004 [25 Pa. Code §127.12b]

[25 Pa. Code §139.1] Plan approval terms and conditions.

Sampling facilities. (a) At least sixty (60) days prior to the performance of the stack testing required by this plan approval, a test plan shall be submitted to the Department for evaluation. The plan shall contain a description of the proposed test methods and dimensioned drawings or sketches showing the test port locations. (b) The Department shall be given at least fourteen (14) days advance notice of the scheduled dates for the performance of the stack testing required by this plan approval. (c) Within sixty (60) days of the completion of the stack tests required by this plan approval, two copies of the test report shall be submitted to the Department. This report shall contain the results of the tests, a description of the testing and analytical procedures actually used in performance of the tests, all process and operating data collected during the tests, a copy of all raw data, and a copy of all calculations generated during data analysis. Upon the request of the Department, the permittee shall provide adequate sampling ports, safe sampling platforms and adequate utilities for the performance by the Department of tests on such source. The Department will set forth, in the request, the time period in which the facilities shall be provided as well as the specifications for such facilities. II. TESTING REQUIREMENTS. 

### SECTION C. Site Level Plan Approval Requirements55-00001G

Page 11 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 005

# 006

# 007 [25 Pa. Code §139.11]

[25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] General requirements.

Plan approval terms and conditions.

Plan approval terms and conditions. (a) As specified in 25 Pa. Code Section 139.11(1), performance tests shall be conducted while the source is operating at maximum routine operating conditions or under such other conditions, within the capacity of the equipment, as may be requested by the Department. (b) As specified in 25 Pa. Code Section 139.11(2), the Department will consider test results for approval where sufficient information is provided to verify the source conditions existing at the time of the test and where adequate data is available to show the manner in which the test was conducted. Information submitted to the Department shall include, as a minimum, all of the following: (1) A thorough source description, including a description of any air cleaning devices and the flue. (2) Process conditions, for example, the charging rate of raw material or rate of production of final product, boiler pressure, oven temperature and other conditions which may effect emissions from the process. (3) The location of sampling ports. (4) Effluent characteristics, including velocity, temperature, moisture content, gas density (percentage of CO, CO2, O2 and N2), static and barometric pressures. (5) Sample collection techniques employed, including procedures used, equipment descriptions and data to verify that isokinetic sampling for particulate matter collection occurred and that acceptable test conditions were met. (6) Laboratory procedures and results. (7) Calculated results. [Compliance with the provisions specified in this streamlined plan approval condition assures compliance with the monitoring requirements specified in 40 CFR Subpart KKKK Section 60.4335, 40 CFR Subpart KKKK Section 60.4345 and 25 Pa. Code Sections 127.1 and 127.12] (a) The permittee shall install, certify, maintain and operate continuous emission monitoring systems (CEMS) for nitrogen oxides, carbon monoxide, carbon dioxide, and ammonia emissions on the exhaust of Source IDs P181, P182 and P183 in accordance with all applicable requirements specified in 25 Pa. Code Chapter 139 and the Department’s “Continuous Source Monitoring Manual.” No CEMS may however be installed unless Phase I approval has first been obtained from the Department. (b) The permittee shall submit a Phase I application to the Department for all CEMS to be associated with Source ID P181, P182 and P183 at least 180 days prior to the expected commencement of operation date of each respective unit. (c) The permittee shall implement a carbon dioxide mass emission monitoring system in accordance with the requirements in 40 CFR Section 98.43 and 40 CFR Section 75.13. [Compliance with the provisions specified in this streamlined plan approval condition assures compliance with the monitoring requirements specified in 40 CFR Subpart KKKK, Section 60.4335, 40 CFR Subpart KKKK, Section 60.4345 and 25 Pa Code Sections 127.1 and 127.12] Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, Source IDs P181, P182 and P183 shall not be operated for any reason unless the associated nitrogen oxides (NOx), ammonia (NH3), carbon III. MONITORING REQUIREMENTS. 

### SECTION C. Site Level Plan Approval Requirements55-00001G

Page 12 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 008

# 009

# 010 [25 Pa. Code §127.12b]

[40 CFR Part 98 Mandatory Greenhouse Gas Reporting §40 CFR 98.1]

[25 Pa. Code §121.7] Plan approval terms and conditions.

Purpose and scope.

Prohibition of air pollution. monoxide (CO), carbon dioxide (CO2) and oxygen continuous emission monitoring system has received Phase I approval from the Department and has subsequently been installed and made operational in accordance with the conditions of this plan approval. Furthermore, the continuous emission monitoring system shall be operated any time the combined cycle combustion turbines (Source IDs P181, P182 and P183) are operating in accordance with all applicable requirements specified in 25 Pa. Code Chapter 139, as well as with the Department's Continuous Source Monitoring Manual unless superseded by conditions contained in this plan approval. The required relative accuracy testing shall have been completed on the associated continuous emission monitoring system and the monitoring system shall be fully certified in accordance with the Department's Continuous Source Monitoring Manual within 180 days of startup of the turbines. Pursuant to 25 Pa. Code Section 127.12b, (a) the permittee shall keep accurate and comprehensive records of the following to demonstrate compliance with the requirement for the sources to utilize pipeline quality natural gas as their fuel: (1) The gas quality characteristics in a current, valid purchase contract, tariff sheet, transportation contract for the fuel or other data compiled by the gas pipeline company, specifying the maximum total sulfur content of the fuel and verifying that the fuel is pipeline quality natural gas. OR (2) Representative fuel sampling data showing the sulfur content of the fuel and verifying that the fuel is pipeline quality natural gas. (a) The records of the fuel sampling performed shall include the following: (i) The date, place, and time of sampling; (ii) The date(s) analyses were performed; (iii) The company or entity that performed the analyses; (iv) The analytical techniques or methods used; (v) The results of such analyses; and, (vi) The operating conditions at the time of sampling or measurement. (b) All information to satisfy this recordkeeping requirement shall be kept for a minimum of five (5) years and shall be made available to the Department upon request. The permittee shall comply with the applicable Mandatory GHG Reporting requirements of 40 CFR Part 98. (a) The facility shall comply with the requirements in 40 CFR Part 98 Subpart D, (40 CFR §§ 98.40 through 98.48).
No person may permit air pollution as that term is defined in the Air Pollution Control Act (35 P.S. Section 4003). Subpart A - General Provision IV.

V.

VI. VII. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS.
WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). 

### SECTION C. Site Level Plan Approval Requirements55-00001G

Page 13 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 011 # 012 # 013

# 014
# 015 # 016 [25 Pa. Code §123.31] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [40 CFR Part 72 Regulations on Permits §40 CFR 72.9] Limitations Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions. Standard requirements. The permittee shall not permit the emission of any malodorous air contaminants into the outdoor atmosphere from any source in such a manner that the malodors are detectable outside the property of the person on whose land the source is being operated. Source IDs 031, 032, 033 034, 035 and 036 shall be permanently shut down prior to the commencement of operation to the combustion turbines authorized by this plan approval. Under no circumstances Source IDs 031, 032, 033 034, 035 and 036 be operated once the combustion turbines have commenced operation. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the three combined cycle gas turbines shall be constructed and operated from the options identified in this plan approval. The three combined cycle gas turbines chosen by the permittee shall be either the three Siemens model 5000F 4 combined-cycle gas turbines (or equivalent as determined by the Department), the three Siemens model 5000F5 combined-cycle gas turbines (or equivalent as determined by the Department), or the three General Electric model 7FA.05 combined-cycle gas turbines (or equivalent as determined by the Department). Additionally, the permittee shall provide the Department, within 30 days prior to selection, the information related to selection of the vendor and model for the turbines, selective catalytic reduction units and oxidation catalyst for Department approval. The Department will evaluate the actual emission rates and may revise the allowable emission rates based upon demonstrated performance (CEMS data, stack tests results), and/or subsequently promulgated applicable requirements during the first five years of operation. Any revision of the allowable emission rates shall be accomplished by minor modification provided that the revised allowable emission rates do not exceed levels at which best available technology (BAT) were evaluated and that are not a result of a physical change at the facility. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, all air-contaminant sources and control devices shall be maintained and operated in accordance with all applicable and appropriate manufacturer’s recommended maintenance and operation parameters. [Additional authority for this plan approval condition is also derived from 40 CFR Part 72 Section 72.30(b)(2) (ii)] The permittee shall submit an Acid Rain permit application for the new units to be constructed at least 24 months before the date on which the units commence operation. VIII. COMPLIANCE CERTIFICATION. IX. COMPLIANCE SCHEDULE. No compliance milestones exist. Subpart A--Acid Rain Program General Provisions 

### SECTION C. Site Level Plan Approval Requirements

No additional compliance certifications exist except as provided in other sections of this plan approval including Section B (relating to Plan Approval General Requirements).55-00001G

Page 14 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Source ID: Source Name:

070 AUX BOILER (REPOWER)

Source Capacity/Throughput:
FML FML11 CU 070 STAC

S070 106.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s).

Fuel Restriction(s). # 001
# 002 # 003 # 004
# 005

# 006 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 40 CFR Part 60 Subpart Db Section 60.44b] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions from Source ID 070 shall not exceed 0.036 lbs/MMBTU and 7.60 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide (CO) emissions from Source ID 070 shall not exceed 0.074 lbs/MMBTU and 15.7 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compounds (VOC) emissions from Source ID 070 shall not exceed 0.005 lbs/MMBTU and 1.10 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 25 Pa. Code Section 123.22] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides (SOx) emissions from Source ID 070 shall not exceed 0.003 lbs/MMBTU and 0.60 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition also assures compliance with the provisions of 25 Pa. Code Section 123.11] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total particulate matter emissions, including PM10 and PM2.5 from Source ID 070 shall not exceed 0.008 lbs/MMBTU and 1.58 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 070 shall only be fired on pipeline quality natural gas. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 15 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4] # 008

# 009

# 010 Subpart A - General Provisions Plan approval terms and conditions.

Plan approval terms and conditions.

Address. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 40 CFR Part 60 Section 60.8] Within 120 days of achieving maximum normal production, but no later than 180 days after initial startup, the permittee shall perform testing on the exhaust of Source ID 070 to verify compliance with the NOx and CO emissions limitations. The NOx and CO stack testing shall be conducted simultaneously. The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval.

The permittee shall keep records of the following: (a) the supporting calculations on a monthly basis for the NOx emissions from Source ID 070 to verify compliance with the NOx emissions limitations of pounds per million Btu, pounds and tons in any 12 consecutive month period. (b) the supporting calculations on a monthly basis for the CO emissions from Source ID 070 to verify compliance with the CO emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (c) the supporting calculations on a monthly basis for the SOx emissions from Source ID 070 to verify compliance with the SOx emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (d) the supporting calculations on a monthly basis for the total PM and PM10 emissions from Source ID 070 to verify compliance with the total PM and PM10 emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (e) the supporting calculations on a monthly basis for the VOC emissions from Source ID 070 to verify compliance with the VOC emissions limitations of pounds per million Btu and tons in any 12 consecutive month period. (f) The actual heat input for Source ID 070 on a monthly basis which verifies compliance with the 12 consecutive month heat input limitation. (g) These records shall be retained for a minimum of five (5) years and shall be made available to the Department upon request. The submission of all requests, reports, applications, submittals and other communications required by the Standards of No additional monitoring requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). II.

III. IV.

V. TESTING REQUIREMENTS.

MONITORING REQUIREMENTS. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS. Throughput Restriction(s). # 007 [25 Pa. Code §127.12b] Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the maximum annual heat input to Source ID 070 shall not exceed 424,000 MMBTU in any 12 consecutive month period. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 16 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.40b] # 011 # 012 # 013 Subpart Db - Standards of Performance for Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions. Plan approval terms and conditions. Applicability and delegation of authority. Performance must be made to both the Department of Environmental Protection and the Environmental Protection Agency.The Environmental Protection Agency copies may be sent to: Associate Director, Office of Air Enforcement and Compliance Assistance (3AP20) U.S. EPA Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448

Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 070 shall be a natural gas fired auxilliary boiler rated at 106.0 MMBTU/hr. Within 30 days of selection, but no less than 120 days prior to the installation, of Source ID 070, the permittee shall submit to the Department for approval, the manufacturer name and model number with design specifications of Source ID 070, by submitting the appropriate pages of the plan approval application. Source ID 070 is subject to the New Source Performance Standards, 40 CFR Part 60, Subpart Db and shall comply with all applicable requirements as specified in 40 CFR Sections 60.40b through 60.49b. No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). VI. VII. WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 17 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Source ID: Source Name:

075 DEW POINT HEATER

Source Capacity/Throughput:
FML FML11 CU 075 STAC

S075 15.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s).

Fuel Restriction(s). Operation Hours Restriction(s). # 001 # 002 # 003 # 004
# 005

# 006
# 007 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions from Source ID 075 shall not exceed 0.085 lbs/MMBTU and 5.25 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide (CO) emissions from Source ID 075 shall not exceed 0.037 lbs/MMBTU and 2.28 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compounds (VOC) emissions from Source ID 075 shall not exceed 0.006 lbs/MMBTU and 0.34 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 25 Pa. Code Section 123.22] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides (SOx) emissions from Source ID 075 shall not exceed 0.003 lbs/MMBTU and 0.17 tons in any 12 consecutive month period. [Compliance with this streamlined plan approval condition assures compliance with the provisions of 25 Pa. Code Section 123.11] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total particulate matter emissions, including PM10 and PM2.5 from Source ID 075 shall not exceed 0.008 lbs/MMBTU and 0.46 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall not be operated in excess of 8,275 hours in any 12 consecutive month period. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 18 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.48c]

[25 Pa. Code §127.12b] # 008

# 009

# 010 Subpart Dc - Standards of Performance for Small Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions.

Reporting and recordkeeping requirements.

Plan approval terms and conditions. The permittee shall keep records of the following : (a) the supporting calculations on a monthly basis for the NOx emissions from Source ID 075 to verify compliance with the NOx emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (b) the supporting calculations on a monthly basis for the CO emissions from Source ID 075 to verify compliance with the CO emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (c) the supporting calculations on a monthly basis for the SOx emissions from Source ID 075 to verify compliance with the SOx emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (d) the supporting calculations on a monthly basis for the total particulate matter (PM) emissions from Source ID 075 to verify compliance with the total PM emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (e) the supporting calculations on a monthly basis for the VOC emissions from Source ID 075 to verify compliance with the VOC emissions limitations of pounds per million Btu, pounds per hour, and tons in any 12 consecutive month period. (f) the number of hours each month and the cooresponding 12 consecutive month totals Source ID 075 has been operated.. (g) These records shall be retained for a minimum of five (5) years and shall be made available to the Department upon request. The permittee shall keep records of the amount of natural gas combusted in Source ID 075 on a daily basis.

Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID 075 shall be No additional testing requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional monitoring requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements).

No additional reporting requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). No additional work practice requirements exist except as provided in other sections of this plan approval including Section B (Plan Approval General Requirements). II. III. IV.

V. VI. VII. TESTING REQUIREMENTS. MONITORING REQUIREMENTS. RECORDKEEPING REQUIREMENTS.

REPORTING REQUIREMENTS. WORK PRACTICE REQUIREMENTS. ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 19 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.40c] # 011 # 012 Subpart Dc - Standards of Performance for Small Industrial- Commercial-Institutional Steam Generating Units Plan approval terms and conditions. Applicability and delegation of authority. a natural gas fired fuel gas heater rated at 15.0 MMBTU/hr. Within 30 days of selection, but no less than 120 days prior to the installation, of Source ID 075, the permittee shall submit to the Department for approval, the manufacturer name and model number with design specifications of Source ID 075, by submitting the appropriate pages of the plan approval application. Source ID 075 is subject to the New Source Performance Standards, 40 CFR Part 60, Subpart Dc and shall comply with all applicable requirements as specified in 40 CFR Sections 60.40c through 60.48c. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 20 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Source ID: Source Name:

P181 CCGT #1 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P181 CNTL

C181 CNTL

C181A STAC

S181 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P181 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P181 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from Source ID P181 when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P181 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P181 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P181 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P181 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P181, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 21 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source ID P181 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P181 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P181 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P181shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P181 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P181 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not exceed the following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 22 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012
# 013

# 014 # 015

# 016 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP [Compliance with this streamlined plan approval condition assures compliance with the requirements of 25 Pa. Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P181 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P181 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, The durations of startups and shutdowns shall be minimized to the extent practicable. Startup and shutdowns shall be defined as follows: Cold start is identified as a restart occurring 72 hours or more after shutdown and shall not exceed 90 minutes in duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 23 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4360]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4400] # 017

# 018

# 019 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines
Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions.

How do I determine the total sulfur content of the turbine's combustion fuel?
How do I conduct the initial and subsequent performance tests, regarding NOX ? (a) Within 180 days of start-up of Source ID P181, the permittee shall conduct EPA reference method testing on Source ID P181 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. The permittee shall monitor the total sulfur content of the fuel being fired in the turbine, except as provided in §60.4365. The sulfur content of the fuel must be determined using total sulfur methods described in §60.4415. Alternatively, if the total sulfur content of the gaseous fuel during the most recent performance test was less than half the applicable limit, ASTM D4084, D4810, D5504, or D6228, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17), which measure the major sulfur compounds, may be used. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent NOX performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). (1) There are two general methodologies that you may use to conduct the performance tests. For each test run: (i) Measure the NOX concentration (in parts per million (ppm)), using EPA Method 7E or EPA Method 20 in appendix A of this part. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix Aof this part, and measure and record the electrical and thermal output from the unit. Then, use the following equation to calculate the NOX emission rate: "Equation 5" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate, in lb/MWh 1.194 x 10-7 = conversion constant, in lb/dscf-ppm (NOX)c = average NOX concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for II. TESTING REQUIREMENTS. Warm start is identified as a restart occurring between 12 hours to 72 hours after shutdown and shall not exceed 75 minutes in duration. Hot start is identified as a restart occurring less than 12 hours after shutdown and shall not exceed 66 minutes duration. Shut down is the period of time during the reduction in load of the CT for the purposes of shutting down the source and shall not exceed 60 minutes duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 24 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (ii) Measure the NOX and diluent gas concentrations, using either EPA Methods 7E and 3A, or EPA Method 20 in appendix A of this part. Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix Aof this part to calculate the NOX emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the NOX emission rate in lb/MWh. (2) Sampling traverse points for NOX and (if applicable) diluent gas are to be selected following EPA Method 20or EPA Method 1 (non-particulate procedures), and sampled for equal time intervals. The sampling must be performed with a traversing single-hole probe, or, if feasible, with a stationary multi-hole probe that samples each of the points sequentially. Alternatively, a multi-hole probe designed and documented to sample equal volumes from each hole may be used to sample simultaneously at the required points. (3) Notwithstanding paragraph (a)(2) of this section, you may test at fewer points than are specified in EPA Method 1 or EPA Method 20 in appendix A of this part if the following conditions are met: (i) The permittee may perform a stratification test for NOX and diluent pursuant to (A) [Reserved], or (B) The procedures specified in section 6.5.6.1(a) through (e) of appendix A of part 75 of this chapter. (ii) Once the stratification sampling is completed, you may use the following alternative sample point selection criteria for the performance test: (A) If each of the individual traverse point NOX concentrations is within ±10 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±5ppm or ±0.5 percent CO2 (or O2) from the mean for all traverse points, then you may use three points (located either 16.7, 50.0 and 83.3 percent of the way across the stack or duct, or, for circular stacks or ducts greater than 2.4 meters (7.8 feet) in diameter, at 0.4, 1.2, and 2.0 meters from the wall). The three points must be located along the measurement line that exhibited the highest average NOX concentration during the stratification test; or (B) Not Applicable (C) For turbines with a NOX standard less than or equal to 15 ppm @ 15% O2, you may sample at a single point, located at least 1 meter from the stack wall or at the stack centroid if each of the individual traverse point NOX concentrations is within ±2.5 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±1ppm or ±0.15 percent CO2 (or O2) from the mean for all traverse points. (b) The performance test must be done at any load condition within plus or minus 25 percent of 100 percent of peak load. You may perform testing at the highest achievable load point, if at least 75 percent of peak load cannot be achieved in practice. You must conduct three separate test runs for each performance test. The minimum time per run is 20 minutes. (1) Not Applicable (2) For a combined cycle and CHP turbine systems with supplemental heat (duct burner), you must measure the total NOX emissions after the duct burner rather than directly after the turbine. The duct burner must be in operation during the performance test. (3) Not Applicable (4) Compliance with the applicable emission limit in §60.4320 must be demonstrated at each tested load level. Compliance is achieved if the three-run arithmetic average NOX emission rate at each tested level meets the applicable 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 25 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4405]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4415] # 020

# 021 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I perform the initial performance test if I have chosen to install a NOX-diluent CEMS?

How do I conduct the initial and subsequent performance tests for sulfur? emission limit in §60.4320. (5) If you elect to install a CEMS, the performance evaluation of the CEMS may either be conducted separately or (as described in §60.4405) as part of the initial performance test of the affected unit. (6) The ambient temperature must be greater than 0 °F during the performance test. If the permittee elects to install and certify a NOX-diluent CEMS under §60.4345, then the initial performance test required under §60.8 may be performed in the following alternative manner: (a) Perform a minimum of nine RATA reference method runs, with a minimum time per run of 21 minutes, at a single load level, within plus or minus 25 percent of 100 percent of peak load. The ambient temperature must be greater than 0 °F during the RATA runs. (b) For each RATA run, concurrently measure the heat input to the unit using a fuel flow meter (or flow meters) and measure the electrical and thermal output from the unit. (c) Use the test data both to demonstrate compliance with the applicable NOX emission limit under §60.4320 and to provide the required reference method data for the RATA of the CEMS described under §60.4335. (d) Compliance with the applicable emission limit in §60.4320 is achieved if the arithmetic average of all of the NOX emission rates for the RATA runs, expressed in units of ppm or lb/MWh, does not exceed the emission limit. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent SO2 performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). There are three methodologies that you may use to conduct the performance tests. (1) If the permittee chooses to periodically determine the sulfur content of the fuel combusted in the turbine, a representative fuel sample would be collected following ASTM D5287 (incorporated by reference, see §60.17) for natural gas. The fuel analyses of this section may be performed either by you, a service contractor retained by you, the fuel vendor, or any other qualified agency. Analyze the samples for the total sulfur content of the fuel using: (i) Not Applicable (ii) For gaseous fuels, ASTM D1072, or alternatively D3246, D4084, D4468, D4810, D6228, D6667, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17). (2) Measure the SO2 concentration (in parts per million (ppm)), using EPA Methods 6, 6C, 8, or 20 in appendix A of this part. In addition, the American Society of Mechanical Engineers (ASME) standard, ASME PTC 19-10-1981-Part 10, "Flue and Exhaust Gas Analyses," manual methods for sulfur dioxide (incorporated by reference, see §60.17) can be used instead of EPA Methods 6 or 20. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix A of this part, and measure and record the electrical and thermal output from the unit. Then use the following equation to calculate the SO2 emission rate: "Equation 6" (Formula omitted...refer to regulation for exact notation). Where: E = SO2 emission rate, in lb/MWh 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 26 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §145.213.]
[25 Pa. Code §145.223.] # 022 # 023 # 024

# 025

# 026 Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375. 1.664 x 10-7 = conversion constant, in lb/dscf-ppm (SO2)c = average SO2 concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (3) Measure the SO2 and diluent gas concentrations, using either EPA Methods 6, 6C, or 8 and 3A, or 20 in appendix A of this part. In addition, you may use the manual methods for sulfur dioxide ASME PTC 19-10-1981-Part 10 (incorporated by reference, see §60.17). Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix A of this part to calculate the SO2 emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the SO2 emission rate in lb/MWh. (b) [Reserved] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). III. MONITORING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 27 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4340]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4345]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4350] # 027

# 028

# 029 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I demonstrate continuous compliance for NOX if I do not use water or steam injection?

What are the requirements for the continuous emission monitoring system equipment, if I choose to use this option?

How do I use data from the continuous emission monitoring equipment to identify excess emissions? (a) If the permittee is not using water or steam injection to control NOX emissions, you must perform annual performance tests in accordance with §60.4400 to demonstrate continuous compliance. As an alternative, you may install, calibrate, maintain and operate Continuous emission monitoring as described in §§60.4335(b). (1) Install, certify, maintain, and operate a continuous emission monitoring system (CEMS) consisting of a NOX monitor and a diluent gas (oxygen (O2) or carbon dioxide (CO2)) monitor, to determine the hourly NOX emission rate in parts per million (ppm) or pounds per million British thermal units (lb/MMBtu); and (2) For units complying with the output-based standard, install, calibrate, maintain, and operate a fuel flow meter (or flow meters) to continuously measure the heat input to the affected unit; and (3) For units complying with the output-based standard, install, calibrate, maintain, and operate a watt meter (or meters) to continuously measure the gross electrical output of the unit in megawatt-hours; and (4) For combined heat and power units complying with the output-based standard, install, calibrate, maintain, and operate meters for useful recovered energy flow rate, temperature, and pressure, to continuously measure the total thermal energy output in British thermal units per hour (Btu/h). If the option to use a NOX CEMS is chosen: (a) Each NOX diluent CEMS must be installed and certified according to Performance Specification 2 (PS 2) in appendix B to this part, except the 7-day calibration drift is based on unit operating days, not calendar days. With state approval, Procedure 1 in appendix F to this part is not required. Alternatively, a NOX diluent CEMS that is installed and certified according to appendix A of part 75 of this chapter is acceptable for use under this subpart. The relative accuracy test audit (RATA) of the CEMS shall be performed on a lb/MMBtu basis. (b) As specified in §60.13(e)(2), during each full unit operating hour, both the NOX monitor and the diluent monitor must complete a minimum of one cycle of operation (sampling, analyzing, and data recording) for each 15-minute quadrant of the hour, to validate the hour. For partial unit operating hours, at least one valid data point must be obtained with each monitor for each quadrant of the hour in which the unit operates. For unit operating hours in which required quality assurance and maintenance activities are performed on the CEMS, a minimum of two valid data points (one in each of two quadrants) are required for each monitor to validate the NOX emission rate for the hour. (c) Each fuel flowmeter shall be installed, calibrated, maintained, and operated according to the manufacturer's instructions. Alternatively, with state approval, fuel flowmeters that meet the installation, certification, and quality assurance requirements of appendix D to part 75 of this chapter are acceptable for use under this subpart. (d) Each watt meter, steam flow meter, and each pressure or temperature measurement device shall be installed, calibrated, maintained, and operated according to manufacturer's instructions. (e) The owner or operator shall develop and keep on-site a quality assurance (QA) plan for all of the continuous monitoring equipment described in paragraphs (a), (c), and (d) of this section. For the CEMS and fuel flow meters, the owner or operator may, with state approval, satisfy the requirements of this paragraph by implementing the QA program and plan described in section 1 of appendix B to part 75of this chapter. For purposes of identifying excess emissions: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 28 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) All CEMS data must be reduced to hourly averages as specified in §60.13(h). (b) For each unit operating hour in which a valid hourly average, as described in §60.4345(b), is obtained for both NOX and diluent monitors, the data acquisition and handling system must calculate and record the hourly NOX emission rate in units of ppm or lb/MMBtu, using the appropriate equation from method 19 in appendix A of this part. For any hour in which the hourly average O2 concentration exceeds 19.0 percent O2 (or the hourly average CO2 concentration is less than 1.0 percent CO2), a diluent cap value of 19.0 percent O2 or 1.0 percent CO2 (as applicable) may be used in the emission calculations. (c) Correction of measured NOX concentrations to 15 percent O2 is not allowed. (d) If the permittee has installed and certified a NOX diluent CEMS to meet the requirements of part 75 of this chapter, states can approve that only quality assured data from the CEMS shall be used to identify excess emissions under this subpart. Periods where the missing data substitution procedures in subpart D of part 75 are applied are to be reported as monitor downtime in the excess emissions and monitoring performance report required under §60.7(c). (e) All required fuel flow rate, steam flow rate, temperature, pressure, and megawatt data must be reduced to hourly averages. (f) Calculate the hourly average NOX emission rates, in units of the emission standards under §60.4320, using either ppm for units complying with the concentration limit or the following equation for units complying with the output based standard: (1) For simple-cycle operation: "Equation 1" (Formula omitted...refer to regulation for exact formula notation). Where: E = hourly NOX emission rate, in lb/MWh, (NOX)h = hourly NOX emission rate, in lb/MMBtu, (HI)h = hourly heat input rate to the unit, in MMBtu/h, measured using the fuel flowmeter(s), e.g., calculated using Equation D-15a in appendix D to part 75 of this chapter, and P = gross energy output of the combustion turbine in MW. (2) For combined-cycle and combined heat and power complying with the output-based standard, use Equation 1 of this subpart, except that the gross energy output is calculated as the sum of the total electrical and mechanical energy generated by the combustion turbine, the additional electrical or mechanical energy (if any) generated by the steam turbine following the heat recovery steam generator, and 100 percent of the total useful thermal energy output that is not used to generate additional electricity or mechanical output, expressed in equivalent MW, as in the following equations: "Equation 2" (Formula omitted...refer to regulation for exact formula notation). Where: P = gross energy output of the stationary combustion turbine system in MW. (Pe)t = electrical or mechanical energy output of the combustion turbine in MW, (Pe)c = electrical or mechanical energy output (if any) of the steam turbine in MW, and "Equation 3" (Formula omitted...refer to regulation for exact formula notation). 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 29 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4365]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4370] # 030

# 031 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How can I be exempted from monitoring the total sulfur content of the fuel?

How often must I determine the sulfur content of the fuel? Where: Ps = useful thermal energy of the steam, measured relative to ISO conditions, not used to generate additional electric or mechanical output, in MW, Q = measured steam flow rate in lb/h, H = enthalpy of the steam at measured temperature and pressure relative to ISO conditions, in Btu/lb, and 3.413 x 106 = conversion from Btu/h to MW. Po = other useful heat recovery, measured relative to ISO conditions, not used for steam generation or performance enhancement of the combustion turbine. (3) For mechanical drive applications complying with the output-based standard, use the following equation: "Equation 4" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate in lb/MWh, (NOX)m = NOX emission rate in lb/h, BL = manufacturer's base load rating of turbine, in MW, and AL = actual load as a percentage of the base load. (g) Not Applicable (h) For combined cycle and combined heat and power units with heat recovery, use the calculated hourly average emission rates from paragraph (f) of this section to assess excess emissions on a 30 unit operating day rolling average basis, as described in §60.4380(b)(1). The permittee may elect not to monitor the total sulfur content of the fuel combusted in the turbine, if the fuel is demonstrated not to exceed potential sulfur emissions of 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for units located in continental areas and 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for units located in noncontinental areas or a continental area that the Administrator determines does not have access to natural gas and that the removal of sulfur compounds would cause more environmental harm than benefit. You must use one of the following sources of information to make the required demonstration: (a) The fuel quality characteristics in a current, valid purchase contract, tariff sheet or transportation contract for the fuel, specifying that the maximum total sulfur content for oil use in continental areas is 0.05 weight percent (500 ppmw) or less and 0.4 weight percent (4,000 ppmw) or less for noncontinental areas, the total sulfur content for natural gas use in continental areas is 20 grains of sulfur or less per 100 standard cubic feet and 140 grains of sulfur or less per 100 standard cubic feet for noncontinental areas, has potential sulfur emissions of less than less than 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas and has potential sulfur emissions of less than less than 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas; or (b) Representative fuel sampling data which show that the sulfur content of the fuel does not exceed 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas or 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas. At a minimum, the amount of fuel sampling data specified in section 2.3.1.4 or 2.3.2.4 of appendix D to part 75 of this chapter is required. The frequency of determining the sulfur content of the fuel must be as follows: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 30 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) Not Applicable (b) Gaseous fuel. If you elect not to demonstrate sulfur content using options in §60.4365, and the fuel is supplied without intermediate bulk storage, the sulfur content value of the gaseous fuel must be determined and recorded once per unit operating day. (c) Custom schedules. Notwithstanding the requirements of paragraph (b) of this section, operators or fuel vendors may develop custom schedules for determination of the total sulfur content of gaseous fuels, based on the design and operation of the affected facility and the characteristics of the fuel supply. Except as provided in paragraphs (c)(1) and (c)(2) of this section, custom schedules shall be substantiated with data and shall be approved by the Administrator before they can be used to comply with the standard in §60.4330. (1) The two custom sulfur monitoring schedules set forth in paragraphs (c)(1)(i) through (iv) and in paragraph (c)(2) of this section are acceptable, without prior Administrative approval: (i) The owner or operator shall obtain daily total sulfur content measurements for 30 consecutive unit operating days, using the applicable methods specified in this subpart. Based on the results of the 30 daily samples, the required frequency for subsequent monitoring of the fuel's total sulfur content shall be as specified in paragraph (c)(1)(ii), (iii), or (iv) of this section, as applicable. (ii) If none of the 30 daily measurements of the fuel's total sulfur content exceeds half the applicable standard, subsequent sulfur content monitoring may be performed at 12-month intervals. If any of the samples taken at 12-month intervals has a total sulfur content greater than half but less than the applicable limit, follow the procedures in paragraph (c)(1)(iii) of this section. If any measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. (iii) If at least one of the 30 daily measurements of the fuel's total sulfur content is greater than half but less than the applicable limit, but none exceeds the applicable limit, then: (A) Collect and analyze a sample every 30 days for 3 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(B) of this section. (B) Begin monitoring at 6-month intervals for 12 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(C) of this section. (C) Begin monitoring at 12-month intervals. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, continue to monitor at this frequency. (iv) If a sulfur content measurement exceeds the applicable limit, immediately begin daily monitoring according to paragraph (c)(1)(i) of this section. Daily monitoring shall continue until 30 consecutive daily samples, each having a sulfur content no greater than the applicable limit, are obtained. At that point, the applicable procedures of paragraph (c)(1)(ii) or (iii) of this section shall be followed. (2) The owner or operator may use the data collected from the 720-hour sulfur sampling demonstration described in section 2.3.6 of appendix D to part 75 of this chapter to determine a custom sulfur sampling schedule, as follows: (i) If the maximum fuel sulfur content obtained from the 720 hourly samples does not exceed 20 grains/100 scf, no additional monitoring of the sulfur content of the gas is required, for the purposes of this subpart. (ii) If the maximum fuel sulfur content obtained from any of the 720 hourly samples exceeds 20 grains/100 scf, but none of the sulfur content values (when converted to weight percent sulfur) exceeds half the applicable limit, then the minimum required sampling frequency shall be one sample at 12 month intervals. (iii) If any sample result exceeds half the applicable limit, but none exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iii) of this section. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 31 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.213.] # 032

# 033
# 034 Plan approval terms and conditions.

Plan approval terms and conditions. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. (iv) If the sulfur content of any of the 720 hourly samples exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iv) of this section. (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P181 . (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P181: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P181 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P181. 3) The number of start-ups and shut-downs performed on Source ID P181 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). (c) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C181). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C181A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The permittee shall record the type (cold/warm/hot) and duration of each start-up and shut down for Source ID P181. The permittee shall also explain the reason for the startup/shutdown event. Additionally, the permittee shall perform and keep records of emissions calculations including the total emissions for each pollutant from each instance of startup and shutdown. These records shall be retained for a minimum of five years and shall be presented to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 32 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4375] # 035

# 036
# 037

# 038 Subpart A - General Provisions

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address.

What reports must I submit? maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The permittee shall submit the monthly records of emissions and hours of operation for Source ID P181 on a semi-annual basis to demonstrate compliance with any 12 consecutive month period of emissions and hours of operations limitations for Source ID P181. The semi-annual records shall contain the above information in any 12 consecutive month period. The semi-annual reports shall be submitted no later than March1 and September 1 of every year for the previous 12 consecutive month period. The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: Associate Director Office of Air Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 33 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4380]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4385] # 039

# 040 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How are excess emissions and monitor downtime defined for NOX ?

How are excess emissions and monitoring downtime defined for SO2? (a) For each affected unit required to continuously monitor parameters or emissions, or to periodically determine the fuel sulfur content under this subpart, you must submit reports of excess emissions and monitor downtime, in accordance with §60.7(c). Excess emissions must be reported for all periods of unit operation, including start-up, shutdown, and malfunction. (b) For each affected unit that performs annual performance tests in accordance with §60.4340(a), you must submit a written report of the results of each performance test before the close of business on the 60th day following the completion of the performance test. For the purpose of reports required under §60.7(c), periods of excess emissions and monitor downtime that must be reported are defined as follows: (a) Not Applicable (b) For turbines using continuous emission monitoring, as described in §§60.4335(b) and 60.4345: (1) An excess emissions is any unit operating period in which the 4-hour or 30-day rolling average NOX emission rate exceeds the applicable emission limit in §60.4320. For the purposes of this subpart, a “4-hour rolling average NOX emission rate” is the arithmetic average of the average NOX emission rate in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given hour and the three unit operating hour average NOX emission rates immediately preceding that unit operating hour. Calculate the rolling average if a valid NOX emission rate is obtained for at least 3 of the 4 hours. For the purposes of this subpart, a “30-day rolling average NOX emission rate” is the arithmetic average of all hourly NOX emission data in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given day and the twenty-nine unit operating days immediately preceding that unit operating day. A new 30- day average is calculated each unit operating day as the average of all hourly NOX emissions rates for the preceding 30 unit operating days if a valid NOX emission rate is obtained for at least 75 percent of all operating hours. (2) A period of monitor downtime is any unit operating hour in which the data for any of the following parameters are either missing or invalid: NOX concentration, CO2 or O2 concentration, fuel flow rate, steam flow rate, steam temperature, steam pressure, or megawatts. The steam flow rate, steam temperature, and steam pressure are only required if you will use this information for compliance purposes. (3) For operating periods during which multiple emissions standards apply, the applicable standard is the average of the applicable standards during each hour. For hours with multiple emissions standards, the applicable limit for that hour is determined based on the condition that corresponded to the highest emissions standard. (c) Not Applicable If the permittee chooses the option to monitor the sulfur content of the fuel, excess emissions and monitoring downtime are defined as follows: (a) For samples of gaseous fuel and for oil samples obtained using daily sampling, flow proportional sampling, or sampling from the unit's storage tank, an excess emission occurs each unit operating hour included in the period beginning on the date and hour of any sample for which the sulfur content of the fuel being fired in the combustion turbine exceeds the applicable limit and ending on the date and hour that a subsequent sample is taken that demonstrates compliance with the sulfur limit. (b) If the option to sample each delivery of fuel oil has been selected, the permittee must immediately switch to one of the other oil sampling options (i.e., daily sampling, flow proportional sampling, or sampling from the unit's storage tank) if the sulfur content of a delivery exceeds 0.05 weight percent. The permittee must continue to use one of the other sampling 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 34 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4395]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 041
# 042 # 043
# 044
# 045
# 046
# 047 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines When must I submit my reports? Plan approval terms and conditions. What are my general requirements for complying with this subpart? Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. options until all of the oil from the delivery has been combusted, and you must evaluate excess emissions according toparagraph (a) of this section. When all of the fuel from the delivery has been burned, you may resume using the asdelivered sampling option. (c) A period of monitor downtime begins when a required sample is not taken by its due date. A period of monitor downtime also begins on the date and hour of a required sample, if invalid results are obtained. The period of monitor downtime ends on the date and hour of the next valid sample. All reports required under §60.7(c) must be postmarked by the 30th day following the end of each 6-month period. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P181. The permittee shall comply with the work practicce standards of 40 CFR PArt 60 Section 60.4333 for Source ID P181. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.106(a)(1)(i), 96.121(a), 97.106(a)(1)(i) and 97.121(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.306(a)(1)(i), 96.321(a), 97.306(a)(1)(i) and 97.321(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx ozone season unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.206(a)(1)(i), 96.221(a), 97.206(a)(1)(i) and 97.221(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR SO2 unit commences operation. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalVI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 35 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.204.]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 048 # 049 # 050

# 051 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Incorporation of Federal regulations by reference.

Does this subpart apply to my stationary combustion turbine? gas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P181 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, the air contaminant emissions from Source ID P181 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. (a) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR SO2 Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (b) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR NOx Ozone Season Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (c) In the event of a conflict between Federal regulatory provisions incorporated by reference in 40 CFR Part 96 and Pennsylvania regulatory provisions, the provision expressly set out in 25 Pa. Code Chapter 145, Subchapter D shall be followed unless the Federal provision is more stringent. Federal regulations that are cited in 25 Pa. Code Chapter 145, Subchapter D or that are cross-referenced in the Federal regulations incorporated by reference include any Pennsylvania modifications made to those Federal regulations. Source ID P181 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 36 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Source ID: Source Name:

P182 CCGT #2 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P182 CNTL

C182 CNTL

C182A STAC

S182 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P182 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P182 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from each turbine when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P182 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P182 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P182 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P182 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P182, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 37 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source ID P182 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P182 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P182 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P182 shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P182 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P182 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not exceed the following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 38 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012
# 013

# 014 # 015

# 016 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP [Compliance with this streamlined plan approval condition assures compliance with the requirements of 25 Pa. Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P182 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P182 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, The durations of startups and shutdowns shall be minimized to the extent practicable. Startup and shutdowns shall be defined as follows: Cold start is identified as a restart occurring 72 hours or more after shutdown and shall not exceed 90 minutes in duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 39 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4360]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4400] # 017

# 018

# 019 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines
Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions.

How do I determine the total sulfur content of the turbine's combustion fuel?
How do I conduct the initial and subsequent performance tests, regarding NOX ? (a) Within 180 days of start-up of Source ID P182, the permittee shall conduct EPA reference method testing on Source ID P182 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. The permittee shall monitor the total sulfur content of the fuel being fired in the turbine, except as provided in §60.4365. The sulfur content of the fuel must be determined using total sulfur methods described in §60.4415. Alternatively, if the total sulfur content of the gaseous fuel during the most recent performance test was less than half the applicable limit, ASTM D4084, D4810, D5504, or D6228, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17), which measure the major sulfur compounds, may be used. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent NOX performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). (1) There are two general methodologies that you may use to conduct the performance tests. For each test run: (i) Measure the NOX concentration (in parts per million (ppm)), using EPA Method 7E or EPA Method 20 in appendix A of this part. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix Aof this part, and measure and record the electrical and thermal output from the unit. Then, use the following equation to calculate the NOX emission rate: "Equation 5" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate, in lb/MWh 1.194 x 10-7 = conversion constant, in lb/dscf-ppm (NOX)c = average NOX concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for II. TESTING REQUIREMENTS. Warm start is identified as a restart occurring between 12 hours to 72 hours after shutdown and shall not exceed 75 minutes in duration. Hot start is identified as a restart occurring less than 12 hours after shutdown and shall not exceed 66 minutes duration. Shut down is the period of time during the reduction in load of the CT for the purposes of shutting down the source and shall not exceed 60 minutes duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 40 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (ii) Measure the NOX and diluent gas concentrations, using either EPA Methods 7E and 3A, or EPA Method 20 in appendix A of this part. Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix Aof this part to calculate the NOX emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the NOX emission rate in lb/MWh. (2) Sampling traverse points for NOX and (if applicable) diluent gas are to be selected following EPA Method 20or EPA Method 1 (non-particulate procedures), and sampled for equal time intervals. The sampling must be performed with a traversing single-hole probe, or, if feasible, with a stationary multi-hole probe that samples each of the points sequentially. Alternatively, a multi-hole probe designed and documented to sample equal volumes from each hole may be used to sample simultaneously at the required points. (3) Notwithstanding paragraph (a)(2) of this section, you may test at fewer points than are specified in EPA Method 1 or EPA Method 20 in appendix A of this part if the following conditions are met: (i) The permittee may perform a stratification test for NOX and diluent pursuant to (A) [Reserved], or (B) The procedures specified in section 6.5.6.1(a) through (e) of appendix A of part 75 of this chapter. (ii) Once the stratification sampling is completed, you may use the following alternative sample point selection criteria for the performance test: (A) If each of the individual traverse point NOX concentrations is within ±10 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±5ppm or ±0.5 percent CO2 (or O2) from the mean for all traverse points, then you may use three points (located either 16.7, 50.0 and 83.3 percent of the way across the stack or duct, or, for circular stacks or ducts greater than 2.4 meters (7.8 feet) in diameter, at 0.4, 1.2, and 2.0 meters from the wall). The three points must be located along the measurement line that exhibited the highest average NOX concentration during the stratification test; or (B) Not Applicable (C) For turbines with a NOX standard less than or equal to 15 ppm @ 15% O2, you may sample at a single point, located at least 1 meter from the stack wall or at the stack centroid if each of the individual traverse point NOX concentrations is within ±2.5 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±1ppm or ±0.15 percent CO2 (or O2) from the mean for all traverse points. (b) The performance test must be done at any load condition within plus or minus 25 percent of 100 percent of peak load. You may perform testing at the highest achievable load point, if at least 75 percent of peak load cannot be achieved in practice. You must conduct three separate test runs for each performance test. The minimum time per run is 20 minutes. (1) Not Applicable (2) For a combined cycle and CHP turbine systems with supplemental heat (duct burner), you must measure the total NOX emissions after the duct burner rather than directly after the turbine. The duct burner must be in operation during the performance test. (3) Not Applicable (4) Compliance with the applicable emission limit in §60.4320 must be demonstrated at each tested load level. Compliance is achieved if the three-run arithmetic average NOX emission rate at each tested level meets the applicable 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 41 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4405]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4415] # 020

# 021 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I perform the initial performance test if I have chosen to install a NOX-diluent CEMS?

How do I conduct the initial and subsequent performance tests for sulfur? emission limit in §60.4320. (5) If you elect to install a CEMS, the performance evaluation of the CEMS may either be conducted separately or (as described in §60.4405) as part of the initial performance test of the affected unit. (6) The ambient temperature must be greater than 0 °F during the performance test. If the permittee elects to install and certify a NOX-diluent CEMS under §60.4345, then the initial performance test required under §60.8 may be performed in the following alternative manner: (a) Perform a minimum of nine RATA reference method runs, with a minimum time per run of 21 minutes, at a single load level, within plus or minus 25 percent of 100 percent of peak load. The ambient temperature must be greater than 0 °F during the RATA runs. (b) For each RATA run, concurrently measure the heat input to the unit using a fuel flow meter (or flow meters) and measure the electrical and thermal output from the unit. (c) Use the test data both to demonstrate compliance with the applicable NOX emission limit under §60.4320 and to provide the required reference method data for the RATA of the CEMS described under §60.4335. (d) Compliance with the applicable emission limit in §60.4320 is achieved if the arithmetic average of all of the NOX emission rates for the RATA runs, expressed in units of ppm or lb/MWh, does not exceed the emission limit. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent SO2 performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). There are three methodologies that you may use to conduct the performance tests. (1) If the permittee chooses to periodically determine the sulfur content of the fuel combusted in the turbine, a representative fuel sample would be collected following ASTM D5287 (incorporated by reference, see §60.17) for natural gas. The fuel analyses of this section may be performed either by you, a service contractor retained by you, the fuel vendor, or any other qualified agency. Analyze the samples for the total sulfur content of the fuel using: (i) Not Applicable (ii) For gaseous fuels, ASTM D1072, or alternatively D3246, D4084, D4468, D4810, D6228, D6667, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17). (2) Measure the SO2 concentration (in parts per million (ppm)), using EPA Methods 6, 6C, 8, or 20 in appendix A of this part. In addition, the American Society of Mechanical Engineers (ASME) standard, ASME PTC 19-10-1981-Part 10, "Flue and Exhaust Gas Analyses," manual methods for sulfur dioxide (incorporated by reference, see §60.17) can be used instead of EPA Methods 6 or 20. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix A of this part, and measure and record the electrical and thermal output from the unit. Then use the following equation to calculate the SO2 emission rate: "Equation 6" (Formula omitted...refer to regulation for exact notation). Where: E = SO2 emission rate, in lb/MWh 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 42 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §145.213.]
[25 Pa. Code §145.223.] # 022 # 023 # 024

# 025

# 026 Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375. 1.664 x 10-7 = conversion constant, in lb/dscf-ppm (SO2)c = average SO2 concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (3) Measure the SO2 and diluent gas concentrations, using either EPA Methods 6, 6C, or 8 and 3A, or 20 in appendix A of this part. In addition, you may use the manual methods for sulfur dioxide ASME PTC 19-10-1981-Part 10 (incorporated by reference, see §60.17). Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix A of this part to calculate the SO2 emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the SO2 emission rate in lb/MWh. (b) [Reserved] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). III. MONITORING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 43 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4340]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4345]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4350] # 027

# 028

# 029 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I demonstrate continuous compliance for NOX if I do not use water or steam injection?

What are the requirements for the continuous emission monitoring system equipment, if I choose to use this option?

How do I use data from the continuous emission monitoring equipment to identify excess emissions? (a) If the permittee is not using water or steam injection to control NOX emissions, you must perform annual performance tests in accordance with §60.4400 to demonstrate continuous compliance. As an alternative, you may install, calibrate, maintain and operate Continuous emission monitoring as described in §§60.4335(b). (1) Install, certify, maintain, and operate a continuous emission monitoring system (CEMS) consisting of a NOX monitor and a diluent gas (oxygen (O2) or carbon dioxide (CO2)) monitor, to determine the hourly NOX emission rate in parts per million (ppm) or pounds per million British thermal units (lb/MMBtu); and (2) For units complying with the output-based standard, install, calibrate, maintain, and operate a fuel flow meter (or flow meters) to continuously measure the heat input to the affected unit; and (3) For units complying with the output-based standard, install, calibrate, maintain, and operate a watt meter (or meters) to continuously measure the gross electrical output of the unit in megawatt-hours; and (4) For combined heat and power units complying with the output-based standard, install, calibrate, maintain, and operate meters for useful recovered energy flow rate, temperature, and pressure, to continuously measure the total thermal energy output in British thermal units per hour (Btu/h). If the option to use a NOX CEMS is chosen: (a) Each NOX diluent CEMS must be installed and certified according to Performance Specification 2 (PS 2) in appendix B to this part, except the 7-day calibration drift is based on unit operating days, not calendar days. With state approval, Procedure 1 in appendix F to this part is not required. Alternatively, a NOX diluent CEMS that is installed and certified according to appendix A of part 75 of this chapter is acceptable for use under this subpart. The relative accuracy test audit (RATA) of the CEMS shall be performed on a lb/MMBtu basis. (b) As specified in §60.13(e)(2), during each full unit operating hour, both the NOX monitor and the diluent monitor must complete a minimum of one cycle of operation (sampling, analyzing, and data recording) for each 15-minute quadrant of the hour, to validate the hour. For partial unit operating hours, at least one valid data point must be obtained with each monitor for each quadrant of the hour in which the unit operates. For unit operating hours in which required quality assurance and maintenance activities are performed on the CEMS, a minimum of two valid data points (one in each of two quadrants) are required for each monitor to validate the NOX emission rate for the hour. (c) Each fuel flowmeter shall be installed, calibrated, maintained, and operated according to the manufacturer's instructions. Alternatively, with state approval, fuel flowmeters that meet the installation, certification, and quality assurance requirements of appendix D to part 75 of this chapter are acceptable for use under this subpart. (d) Each watt meter, steam flow meter, and each pressure or temperature measurement device shall be installed, calibrated, maintained, and operated according to manufacturer's instructions. (e) The owner or operator shall develop and keep on-site a quality assurance (QA) plan for all of the continuous monitoring equipment described in paragraphs (a), (c), and (d) of this section. For the CEMS and fuel flow meters, the owner or operator may, with state approval, satisfy the requirements of this paragraph by implementing the QA program and plan described in section 1 of appendix B to part 75of this chapter. For purposes of identifying excess emissions: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 44 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) All CEMS data must be reduced to hourly averages as specified in §60.13(h). (b) For each unit operating hour in which a valid hourly average, as described in §60.4345(b), is obtained for both NOX and diluent monitors, the data acquisition and handling system must calculate and record the hourly NOX emission rate in units of ppm or lb/MMBtu, using the appropriate equation from method 19 in appendix A of this part. For any hour in which the hourly average O2 concentration exceeds 19.0 percent O2 (or the hourly average CO2 concentration is less than 1.0 percent CO2), a diluent cap value of 19.0 percent O2 or 1.0 percent CO2 (as applicable) may be used in the emission calculations. (c) Correction of measured NOX concentrations to 15 percent O2 is not allowed. (d) If the permittee has installed and certified a NOX diluent CEMS to meet the requirements of part 75 of this chapter, states can approve that only quality assured data from the CEMS shall be used to identify excess emissions under this subpart. Periods where the missing data substitution procedures in subpart D of part 75 are applied are to be reported as monitor downtime in the excess emissions and monitoring performance report required under §60.7(c). (e) All required fuel flow rate, steam flow rate, temperature, pressure, and megawatt data must be reduced to hourly averages. (f) Calculate the hourly average NOX emission rates, in units of the emission standards under §60.4320, using either ppm for units complying with the concentration limit or the following equation for units complying with the output based standard: (1) For simple-cycle operation: "Equation 1" (Formula omitted...refer to regulation for exact formula notation). Where: E = hourly NOX emission rate, in lb/MWh, (NOX)h = hourly NOX emission rate, in lb/MMBtu, (HI)h = hourly heat input rate to the unit, in MMBtu/h, measured using the fuel flowmeter(s), e.g., calculated using Equation D-15a in appendix D to part 75 of this chapter, and P = gross energy output of the combustion turbine in MW. (2) For combined-cycle and combined heat and power complying with the output-based standard, use Equation 1 of this subpart, except that the gross energy output is calculated as the sum of the total electrical and mechanical energy generated by the combustion turbine, the additional electrical or mechanical energy (if any) generated by the steam turbine following the heat recovery steam generator, and 100 percent of the total useful thermal energy output that is not used to generate additional electricity or mechanical output, expressed in equivalent MW, as in the following equations: "Equation 2" (Formula omitted...refer to regulation for exact formula notation). Where: P = gross energy output of the stationary combustion turbine system in MW. (Pe)t = electrical or mechanical energy output of the combustion turbine in MW, (Pe)c = electrical or mechanical energy output (if any) of the steam turbine in MW, and "Equation 3" (Formula omitted...refer to regulation for exact formula notation). 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 45 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4365]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4370] # 030

# 031 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How can I be exempted from monitoring the total sulfur content of the fuel?

How often must I determine the sulfur content of the fuel? Where: Ps = useful thermal energy of the steam, measured relative to ISO conditions, not used to generate additional electric or mechanical output, in MW, Q = measured steam flow rate in lb/h, H = enthalpy of the steam at measured temperature and pressure relative to ISO conditions, in Btu/lb, and 3.413 x 106 = conversion from Btu/h to MW. Po = other useful heat recovery, measured relative to ISO conditions, not used for steam generation or performance enhancement of the combustion turbine. (3) For mechanical drive applications complying with the output-based standard, use the following equation: "Equation 4" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate in lb/MWh, (NOX)m = NOX emission rate in lb/h, BL = manufacturer's base load rating of turbine, in MW, and AL = actual load as a percentage of the base load. (g) Not Applicable (h) For combined cycle and combined heat and power units with heat recovery, use the calculated hourly average emission rates from paragraph (f) of this section to assess excess emissions on a 30 unit operating day rolling average basis, as described in §60.4380(b)(1). The permittee may elect not to monitor the total sulfur content of the fuel combusted in the turbine, if the fuel is demonstrated not to exceed potential sulfur emissions of 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for units located in continental areas and 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for units located in noncontinental areas or a continental area that the Administrator determines does not have access to natural gas and that the removal of sulfur compounds would cause more environmental harm than benefit. You must use one of the following sources of information to make the required demonstration: (a) The fuel quality characteristics in a current, valid purchase contract, tariff sheet or transportation contract for the fuel, specifying that the maximum total sulfur content for oil use in continental areas is 0.05 weight percent (500 ppmw) or less and 0.4 weight percent (4,000 ppmw) or less for noncontinental areas, the total sulfur content for natural gas use in continental areas is 20 grains of sulfur or less per 100 standard cubic feet and 140 grains of sulfur or less per 100 standard cubic feet for noncontinental areas, has potential sulfur emissions of less than less than 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas and has potential sulfur emissions of less than less than 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas; or (b) Representative fuel sampling data which show that the sulfur content of the fuel does not exceed 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas or 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas. At a minimum, the amount of fuel sampling data specified in section 2.3.1.4 or 2.3.2.4 of appendix D to part 75 of this chapter is required. The frequency of determining the sulfur content of the fuel must be as follows: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 46 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) Not Applicable (b) Gaseous fuel. If you elect not to demonstrate sulfur content using options in §60.4365, and the fuel is supplied without intermediate bulk storage, the sulfur content value of the gaseous fuel must be determined and recorded once per unit operating day. (c) Custom schedules. Notwithstanding the requirements of paragraph (b) of this section, operators or fuel vendors may develop custom schedules for determination of the total sulfur content of gaseous fuels, based on the design and operation of the affected facility and the characteristics of the fuel supply. Except as provided in paragraphs (c)(1) and (c)(2) of this section, custom schedules shall be substantiated with data and shall be approved by the Administrator before they can be used to comply with the standard in §60.4330. (1) The two custom sulfur monitoring schedules set forth in paragraphs (c)(1)(i) through (iv) and in paragraph (c)(2) of this section are acceptable, without prior Administrative approval: (i) The owner or operator shall obtain daily total sulfur content measurements for 30 consecutive unit operating days, using the applicable methods specified in this subpart. Based on the results of the 30 daily samples, the required frequency for subsequent monitoring of the fuel's total sulfur content shall be as specified in paragraph (c)(1)(ii), (iii), or (iv) of this section, as applicable. (ii) If none of the 30 daily measurements of the fuel's total sulfur content exceeds half the applicable standard, subsequent sulfur content monitoring may be performed at 12-month intervals. If any of the samples taken at 12-month intervals has a total sulfur content greater than half but less than the applicable limit, follow the procedures in paragraph (c)(1)(iii) of this section. If any measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. (iii) If at least one of the 30 daily measurements of the fuel's total sulfur content is greater than half but less than the applicable limit, but none exceeds the applicable limit, then: (A) Collect and analyze a sample every 30 days for 3 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(B) of this section. (B) Begin monitoring at 6-month intervals for 12 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(C) of this section. (C) Begin monitoring at 12-month intervals. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, continue to monitor at this frequency. (iv) If a sulfur content measurement exceeds the applicable limit, immediately begin daily monitoring according to paragraph (c)(1)(i) of this section. Daily monitoring shall continue until 30 consecutive daily samples, each having a sulfur content no greater than the applicable limit, are obtained. At that point, the applicable procedures of paragraph (c)(1)(ii) or (iii) of this section shall be followed. (2) The owner or operator may use the data collected from the 720-hour sulfur sampling demonstration described in section 2.3.6 of appendix D to part 75 of this chapter to determine a custom sulfur sampling schedule, as follows: (i) If the maximum fuel sulfur content obtained from the 720 hourly samples does not exceed 20 grains/100 scf, no additional monitoring of the sulfur content of the gas is required, for the purposes of this subpart. (ii) If the maximum fuel sulfur content obtained from any of the 720 hourly samples exceeds 20 grains/100 scf, but none of the sulfur content values (when converted to weight percent sulfur) exceeds half the applicable limit, then the minimum required sampling frequency shall be one sample at 12 month intervals. (iii) If any sample result exceeds half the applicable limit, but none exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iii) of this section. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 47 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.213.] # 032

# 033
# 034 Plan approval terms and conditions.

Plan approval terms and conditions. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. (iv) If the sulfur content of any of the 720 hourly samples exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iv) of this section. (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P182 . (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P182: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P182 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P182. 3) The number of start-ups and shut-downs performed on Source ID P182 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). (c) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C182). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C182A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The permittee shall record the type (cold/warm/hot) and duration of each start-up and shut down for Source ID P182. The permittee shall also explain the reason for the startup/shutdown event. Additionally, the permittee shall perform and keep records of emissions calculations including the total emissions for each pollutant from each instance of startup and shutdown. These records shall be retained for a minimum of five years and shall be presented to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 48 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4375] # 035

# 036
# 037

# 038 Subpart A - General Provisions

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address.

What reports must I submit? maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The permittee shall submit the monthly records of emissions and hours of operation for Source ID P182 on a semi-annual basis to demonstrate compliance with any 12 consecutive month period of emissions and hours of operations limitations for Source ID P182. The semi-annual records shall contain the above information in any 12 consecutive month period. The semi-annual reports shall be submitted no later than March1 and September 1 of every year for the previous 12 consecutive month period. The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: Associate Director Office of Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 49 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4380]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4385] # 039

# 040 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How are excess emissions and monitor downtime defined for NOX ?

How are excess emissions and monitoring downtime defined for SO2? (a) For each affected unit required to continuously monitor parameters or emissions, or to periodically determine the fuel sulfur content under this subpart, you must submit reports of excess emissions and monitor downtime, in accordance with §60.7(c). Excess emissions must be reported for all periods of unit operation, including start-up, shutdown, and malfunction. (b) For each affected unit that performs annual performance tests in accordance with §60.4340(a), you must submit a written report of the results of each performance test before the close of business on the 60th day following the completion of the performance test. For the purpose of reports required under §60.7(c), periods of excess emissions and monitor downtime that must be reported are defined as follows: (a) Not Applicable (b) For turbines using continuous emission monitoring, as described in §§60.4335(b) and 60.4345: (1) An excess emissions is any unit operating period in which the 4-hour or 30-day rolling average NOX emission rate exceeds the applicable emission limit in §60.4320. For the purposes of this subpart, a “4-hour rolling average NOX emission rate” is the arithmetic average of the average NOX emission rate in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given hour and the three unit operating hour average NOX emission rates immediately preceding that unit operating hour. Calculate the rolling average if a valid NOX emission rate is obtained for at least 3 of the 4 hours. For the purposes of this subpart, a “30-day rolling average NOX emission rate” is the arithmetic average of all hourly NOX emission data in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given day and the twenty-nine unit operating days immediately preceding that unit operating day. A new 30- day average is calculated each unit operating day as the average of all hourly NOX emissions rates for the preceding 30 unit operating days if a valid NOX emission rate is obtained for at least 75 percent of all operating hours. (2) A period of monitor downtime is any unit operating hour in which the data for any of the following parameters are either missing or invalid: NOX concentration, CO2 or O2 concentration, fuel flow rate, steam flow rate, steam temperature, steam pressure, or megawatts. The steam flow rate, steam temperature, and steam pressure are only required if you will use this information for compliance purposes. (3) For operating periods during which multiple emissions standards apply, the applicable standard is the average of the applicable standards during each hour. For hours with multiple emissions standards, the applicable limit for that hour is determined based on the condition that corresponded to the highest emissions standard. (c) Not Applicable If the permittee chooses the option to monitor the sulfur content of the fuel, excess emissions and monitoring downtime are defined as follows: (a) For samples of gaseous fuel and for oil samples obtained using daily sampling, flow proportional sampling, or sampling from the unit's storage tank, an excess emission occurs each unit operating hour included in the period beginning on the date and hour of any sample for which the sulfur content of the fuel being fired in the combustion turbine exceeds the applicable limit and ending on the date and hour that a subsequent sample is taken that demonstrates compliance with the sulfur limit. (b) If the option to sample each delivery of fuel oil has been selected, the permittee must immediately switch to one of the other oil sampling options (i.e., daily sampling, flow proportional sampling, or sampling from the unit's storage tank) if the sulfur content of a delivery exceeds 0.05 weight percent. The permittee must continue to use one of the other sampling 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 50 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4395]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 041
# 042 # 043
# 044
# 045
# 046
# 047 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines When must I submit my reports? Plan approval terms and conditions. What are my general requirements for complying with this subpart? Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. options until all of the oil from the delivery has been combusted, and you must evaluate excess emissions according toparagraph (a) of this section. When all of the fuel from the delivery has been burned, you may resume using the asdelivered sampling option. (c) A period of monitor downtime begins when a required sample is not taken by its due date. A period of monitor downtime also begins on the date and hour of a required sample, if invalid results are obtained. The period of monitor downtime ends on the date and hour of the next valid sample. All reports required under §60.7(c) must be postmarked by the 30th day following the end of each 6-month period. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P182. The permittee shall comply with the work practicce standards of 40 CFR Part 60 Section 60.4333 for Source ID P182. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.106(a)(1)(i), 96.121(a), 97.106(a)(1)(i) and 97.121(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.306(a)(1)(i), 96.321(a), 97.306(a)(1)(i) and 97.321(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx ozone season unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.206(a)(1)(i), 96.221(a), 97.206(a)(1)(i) and 97.221(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR SO2 unit commences operation. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalVI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 51 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.204.]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 048 # 049 # 050

# 051 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Incorporation of Federal regulations by reference.

Does this subpart apply to my stationary combustion turbine? gas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P182 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, , the air contaminant emissions from Source ID P182 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. (a) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR SO2 Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (b) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR NOx Ozone Season Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (c) In the event of a conflict between Federal regulatory provisions incorporated by reference in 40 CFR Part 96 and Pennsylvania regulatory provisions, the provision expressly set out in 25 Pa. Code Chapter 145, Subchapter D shall be followed unless the Federal provision is more stringent. Federal regulations that are cited in 25 Pa. Code Chapter 145, Subchapter D or that are cross-referenced in the Federal regulations incorporated by reference include any Pennsylvania modifications made to those Federal regulations. Source ID P182 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 52 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Source ID: Source Name:

P183 CCGT #3 AND DUCT BURNER

Source Capacity/Throughput:
FML FML11 PROC P183 CNTL

C183 CNTL

C183A STAC

S183 2,538.000 MMBTU/HR

I. RESTRICTIONS. Emission Restriction(s). # 001

# 002
# 003

# 004
# 005 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4320] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the nitrogen oxides emissions (NOx) from Source ID P183 shall not exceed 2 ppm corrected to 15% oxygen at all times. Additionally, the NOx emissions shall not exceed 17.4 lbs/hr from Source ID P181 when the duct burners are not operating and 18.4 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the carbon monoxide emissions (CO) from Source ID P183 shall not exceed 2 ppm corrected to 15% oxygen. Additionally, the CO emissions shall not exceed 10.6 lbs/hr from each turbine when the duct burners are not operating and 11.2 lbs/hr when the duct burners are operating. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330 and 25 Pa. Code Section 123.21] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfur oxides emissions (SOx) from Source ID P183 shall not exceed 0.0024 lbs/MMBTU at all times. Additionally, the SOx emissions shall not exceed 5.8 lbs/hr from Source ID P183 when the duct burners are not operating and 6.1 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the volatile organic compound (VOC) emissions from Source ID P183 shall not exceed the following rates when the duct burners are not in operation: 1.0 ppm corrected to 15% oxygen and 3.0 lbs/hr. Additionally the VOC emissions from Source ID P183 shall not exceed the following rates when the duct burners are operating: 3.9 ppm corrected to 15 % oxygen and 10.8 lbs/hr. [Compliance with this plan approval condition assures compliance with the provisions specified in 25 Pa. Code Section 123.13] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12 for Source ID P183, (a) the total particulate matter (PM) emissions shall not exceed 0.0088 lbs/MMBTU at all times. (b) the PM10 emissions shall not exceed 0.0088 lbs/MMBTU at all times. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 53 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: # 006 # 007 # 008 # 009
# 010 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. (c) the PM2.5 emissions shall not exceed 0.0088 lbs/MMBTU at all times. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the ammonia slip from the SCR associated with Source IDs P183 shall not exceed 5 ppmv and 56.2 tons in any 12 consecutive month period. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the CO2 equivalent emissions from Source ID P183 shall not exceed 281,727 lbs/hr when the duct burners are not operating. Additionally, the CO2 equivalent emissions from Source ID P183 shall not exceed 298,106 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the formaldehyde emissions from Source ID P183 shall not exceed 0.312 lbs/hr and 1.22 tons in any 12 CMP. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the sulfuric acid mist (H2SO4) from Source ID P183 shall not exceed 0.0018 lbs/MMBTU at all times. Additionally, the H2SO4 emissions shall not exceed 4.4 lbs/hr from Source ID P183 when the duct burners are not operating and 4.7 lbs/hr when the duct burners are operating. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total emissions form the combined cycle gas turbines combined (Source IDs P181, P182 and P183) shall not exceed the following totals. These emissions limits also include those during start-up and shut down events: Siemens F4 Option: • Nitrogen Oxides – 182.2 tons/12CMP • Carbon Monoxide – 320.0 tons/12 CMP • Volatile Organic Compounds – 50.3 tons/12 CMP • Sulfur Oxides – 60.6 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 175.2 tons/12 CMP • Sulfuric Acid Mist – 46.4 tons/12 CMP • Carbon Dioxide Equivalent – 2, 950,386 tons/12 CMP • Ammonia – 168.6 tons/12 CMP Siemens F5 Option: • Nitrogen Oxides – 181.9 tons/12CMP • Carbon Monoxide – 343.5 tons/12 CMP • Volatile Organic Compounds – 44.0 tons/12 CMP • Sulfur Oxides – 60.5 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 177.6 tons/12 CMP • Sulfuric Acid Mist – 46.3 tons/12 CMP • Carbon Dioxide Equivalent – 2, 948,896 tons/12 CMP • Ammonia – 168.3 tons/12 CMP GE 7FA.05 Option • Nitrogen Oxides – 181.8 tons/12CMP • Carbon Monoxide – 319.7 tons/12 CMP • Volatile Organic Compounds – 50.5 tons/12 CMP • Sulfur Oxides – 61.1 tons/12 CMP • Total Particulate Matter (including PM10 and PM 2.5) – 178.7 tons/12 CMP 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 54 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: Fuel Restriction(s).
Operation Hours Restriction(s). # 011

# 012
# 013

# 014 # 015

# 016 [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] Plan approval terms and conditions.

Plan approval terms and conditions. Plan approval terms and conditions.
Plan approval terms and conditions. Plan approval terms and conditions.

Plan approval terms and conditions. • Sulfuric Acid Mist – 46.8 tons/12 CMP • Carbon Dioxide Equivalent – 2, 949,212 tons/12 CMP • Ammonia – 166.5 tons/12 CMP [Compliance with this streamlined plan approval requirement assures compliance with the provisions of 25 Pa Code Section 123.41] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall not permit the emission of visible air contaminants into the outdoor atmosphere in such a manner that the opacity of the emission is either of the following: (1) Equal to or greater than 10% for a period or periods aggregating more than six minutes in any 1 hour. (2) Equal to or greater than 20% at any time. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the total HAP emissions from Source ID P183 shall not exceed 4.63 tons in any 12 CMP. [Compliance with this plan approval condition assures compliance with the provisions specified in 40 CFR Part 60 Subpart KKKK Section 60.4330] Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall only be fired on pipeline quality natural gas. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the duct burners associated with Source ID P183 shall not be operated in excess of 1,000 hours in any 12 consecutive month period (CMP). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall not be operated in excess of the following rates: (a) 7,955 hours in any 12 consecutive month period (CMP) if the Siemend F4 option is selected, (b) 6,920 hours in any 12 CMP if the Siemens F5 option is selected, (c) 8,275 hours in any 12 CMP if the GE 7FA.05 option is selected. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, The durations of startups and shutdowns shall be minimized to the extent practicable. Startup and shutdowns shall be defined as follows: Cold start is identified as a restart occurring 72 hours or more after shutdown and shall not exceed 90 minutes in duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 55 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4360]
[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4400] # 017

# 018

# 019 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines
Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions.

How do I determine the total sulfur content of the turbine's combustion fuel?
How do I conduct the initial and subsequent performance tests, regarding NOX ? (a) Within 180 days of start-up of Source ID P183, the permittee shall conduct EPA reference method testing on Source ID P183 for nitrogen oxides, carbon monoxide, ammonia slip, volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde. (b) Subsequent EPA reference method testing for volatile organic compounds, sulfur oxides (SO2), sulfuric acid mist, total PM, total PM10, total PM2.5 and formaldehyde shall be conducted every two years from the date of the previous tests. The testing frequency may be revised based upon the satisfactory demonstration of compliance with the emission limitations. (c) The permittee shall follow the testing and notification requirements specified in Section C, Site Level Requirements, of this plan approval. The permittee shall monitor the total sulfur content of the fuel being fired in the turbine, except as provided in §60.4365. The sulfur content of the fuel must be determined using total sulfur methods described in §60.4415. Alternatively, if the total sulfur content of the gaseous fuel during the most recent performance test was less than half the applicable limit, ASTM D4084, D4810, D5504, or D6228, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17), which measure the major sulfur compounds, may be used. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent NOX performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). (1) There are two general methodologies that you may use to conduct the performance tests. For each test run: (i) Measure the NOX concentration (in parts per million (ppm)), using EPA Method 7E or EPA Method 20 in appendix A of this part. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix Aof this part, and measure and record the electrical and thermal output from the unit. Then, use the following equation to calculate the NOX emission rate: "Equation 5" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate, in lb/MWh 1.194 x 10-7 = conversion constant, in lb/dscf-ppm (NOX)c = average NOX concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for II. TESTING REQUIREMENTS. Warm start is identified as a restart occurring between 12 hours to 72 hours after shutdown and shall not exceed 75 minutes in duration. Hot start is identified as a restart occurring less than 12 hours after shutdown and shall not exceed 66 minutes duration. Shut down is the period of time during the reduction in load of the CT for the purposes of shutting down the source and shall not exceed 60 minutes duration. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 56 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (ii) Measure the NOX and diluent gas concentrations, using either EPA Methods 7E and 3A, or EPA Method 20 in appendix A of this part. Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix Aof this part to calculate the NOX emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the NOX emission rate in lb/MWh. (2) Sampling traverse points for NOX and (if applicable) diluent gas are to be selected following EPA Method 20or EPA Method 1 (non-particulate procedures), and sampled for equal time intervals. The sampling must be performed with a traversing single-hole probe, or, if feasible, with a stationary multi-hole probe that samples each of the points sequentially. Alternatively, a multi-hole probe designed and documented to sample equal volumes from each hole may be used to sample simultaneously at the required points. (3) Notwithstanding paragraph (a)(2) of this section, you may test at fewer points than are specified in EPA Method 1 or EPA Method 20 in appendix A of this part if the following conditions are met: (i) The permittee may perform a stratification test for NOX and diluent pursuant to (A) [Reserved], or (B) The procedures specified in section 6.5.6.1(a) through (e) of appendix A of part 75 of this chapter. (ii) Once the stratification sampling is completed, you may use the following alternative sample point selection criteria for the performance test: (A) If each of the individual traverse point NOX concentrations is within ±10 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±5ppm or ±0.5 percent CO2 (or O2) from the mean for all traverse points, then you may use three points (located either 16.7, 50.0 and 83.3 percent of the way across the stack or duct, or, for circular stacks or ducts greater than 2.4 meters (7.8 feet) in diameter, at 0.4, 1.2, and 2.0 meters from the wall). The three points must be located along the measurement line that exhibited the highest average NOX concentration during the stratification test; or (B) Not Applicable (C) For turbines with a NOX standard less than or equal to 15 ppm @ 15% O2, you may sample at a single point, located at least 1 meter from the stack wall or at the stack centroid if each of the individual traverse point NOX concentrations is within ±2.5 percent of the mean concentration for all traverse points, or the individual traverse point diluent concentrations differs by no more than ±1ppm or ±0.15 percent CO2 (or O2) from the mean for all traverse points. (b) The performance test must be done at any load condition within plus or minus 25 percent of 100 percent of peak load. You may perform testing at the highest achievable load point, if at least 75 percent of peak load cannot be achieved in practice. You must conduct three separate test runs for each performance test. The minimum time per run is 20 minutes. (1) Not Applicable (2) For a combined cycle and CHP turbine systems with supplemental heat (duct burner), you must measure the total NOX emissions after the duct burner rather than directly after the turbine. The duct burner must be in operation during the performance test. (3) Not Applicable (4) Compliance with the applicable emission limit in §60.4320 must be demonstrated at each tested load level. Compliance is achieved if the three-run arithmetic average NOX emission rate at each tested level meets the applicable 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 57 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4405]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4415] # 020

# 021 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I perform the initial performance test if I have chosen to install a NOX-diluent CEMS?

How do I conduct the initial and subsequent performance tests for sulfur? emission limit in §60.4320. (5) If you elect to install a CEMS, the performance evaluation of the CEMS may either be conducted separately or (as described in §60.4405) as part of the initial performance test of the affected unit. (6) The ambient temperature must be greater than 0 °F during the performance test. If the permittee elects to install and certify a NOX-diluent CEMS under §60.4345, then the initial performance test required under §60.8 may be performed in the following alternative manner: (a) Perform a minimum of nine RATA reference method runs, with a minimum time per run of 21 minutes, at a single load level, within plus or minus 25 percent of 100 percent of peak load. The ambient temperature must be greater than 0 °F during the RATA runs. (b) For each RATA run, concurrently measure the heat input to the unit using a fuel flow meter (or flow meters) and measure the electrical and thermal output from the unit. (c) Use the test data both to demonstrate compliance with the applicable NOX emission limit under §60.4320 and to provide the required reference method data for the RATA of the CEMS described under §60.4335. (d) Compliance with the applicable emission limit in §60.4320 is achieved if the arithmetic average of all of the NOX emission rates for the RATA runs, expressed in units of ppm or lb/MWh, does not exceed the emission limit. (a) The permittee shall conduct an initial performance test, as required in §60.8. Subsequent SO2 performance tests shall be conducted on an annual basis (no more than 14 calendar months following the previous performance test). There are three methodologies that you may use to conduct the performance tests. (1) If the permittee chooses to periodically determine the sulfur content of the fuel combusted in the turbine, a representative fuel sample would be collected following ASTM D5287 (incorporated by reference, see §60.17) for natural gas. The fuel analyses of this section may be performed either by you, a service contractor retained by you, the fuel vendor, or any other qualified agency. Analyze the samples for the total sulfur content of the fuel using: (i) Not Applicable (ii) For gaseous fuels, ASTM D1072, or alternatively D3246, D4084, D4468, D4810, D6228, D6667, or Gas Processors Association Standard 2377 (all of which are incorporated by reference, see §60.17). (2) Measure the SO2 concentration (in parts per million (ppm)), using EPA Methods 6, 6C, 8, or 20 in appendix A of this part. In addition, the American Society of Mechanical Engineers (ASME) standard, ASME PTC 19-10-1981-Part 10, "Flue and Exhaust Gas Analyses," manual methods for sulfur dioxide (incorporated by reference, see §60.17) can be used instead of EPA Methods 6 or 20. For units complying with the output based standard, concurrently measure the stack gas flow rate, using EPA Methods 1 and 2 in appendix A of this part, and measure and record the electrical and thermal output from the unit. Then use the following equation to calculate the SO2 emission rate: "Equation 6" (Formula omitted...refer to regulation for exact notation). Where: E = SO2 emission rate, in lb/MWh 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 58 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §127.12b]
[25 Pa. Code §145.213.]
[25 Pa. Code §145.223.] # 022 # 023 # 024

# 025

# 026 Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions.
Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375. 1.664 x 10-7 = conversion constant, in lb/dscf-ppm (SO2)c = average SO2 concentration for the run, in ppm Qstd = stack gas volumetric flow rate, in dscf/hr P = gross electrical and mechanical energy output of the combustion turbine, in MW (for simple-cycle operation), for combined-cycle operation, the sum of all electrical and mechanical output from the combustion and steam turbines, or, for combined heat and power operation, the sum of all electrical and mechanical output from the combustion and steam turbines plus all useful recovered thermal output not used for additional electric or mechanical generation, in MW, calculated according to §60.4350(f)(2); or (3) Measure the SO2 and diluent gas concentrations, using either EPA Methods 6, 6C, or 8 and 3A, or 20 in appendix A of this part. In addition, you may use the manual methods for sulfur dioxide ASME PTC 19-10-1981-Part 10 (incorporated by reference, see §60.17). Concurrently measure the heat input to the unit, using a fuel flowmeter (or flowmeters), and measure the electrical and thermal output of the unit. Use EPA Method 19 in appendix A of this part to calculate the SO2 emission rate in lb/MMBtu. Then, use Equations 1 and, if necessary, 2 and 3 in §60.4350(f) to calculate the SO2 emission rate in lb/MWh. (b) [Reserved] Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, the permittee shall continuously monitors the inlet temperature and the pressure differential across the selective catalytic reduction catalyst. Pursuant to best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, an oxygen monitor shall be located in the stack of the source to monitor oxygen levels and utilized to ensure maximum combustion efficiency. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, the pressure differential across the oxidation catalyst as well as the catalyst inlet and outlet temperatures shall be monitored and recorded on a continuous basis (1-hour average). Visual and audible alarms shall be utilized to indicate improper operation. The pressure differential and temperature ranges will be established based upon the recorded data and the stack testing. In addition to these operating parameters, the CO emissions from the CEMS will be used as an indicator for VOC emission compliance based upon the recorded data and the stack testing. The owner or operator of the CAIR NOx unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). The owner or operator of the CAIR NOx ozone season unit shall install, calibrate, maintain and operate a wattmeter, measure gross electrical output in megawatt-hours on a continuous basis and record the output of the wattmeter. If a generator is served by two or more units, the information to determine the heat input of each unit for that control period shall also be recorded, so as to allow each unit's share of the gross electrical output to be determined. If heat input data are used, the owner or operator shall comply with the applicable provisions of 40 CFR Part 75 (relating to continuous emission monitoring). III. MONITORING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 59 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4340]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4345]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4350] # 027

# 028

# 029 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How do I demonstrate continuous compliance for NOX if I do not use water or steam injection?

What are the requirements for the continuous emission monitoring system equipment, if I choose to use this option?

How do I use data from the continuous emission monitoring equipment to identify excess emissions? (a) If the permittee is not using water or steam injection to control NOX emissions, you must perform annual performance tests in accordance with §60.4400 to demonstrate continuous compliance. As an alternative, you may install, calibrate, maintain and operate Continuous emission monitoring as described in §§60.4335(b). (1) Install, certify, maintain, and operate a continuous emission monitoring system (CEMS) consisting of a NOX monitor and a diluent gas (oxygen (O2) or carbon dioxide (CO2)) monitor, to determine the hourly NOX emission rate in parts per million (ppm) or pounds per million British thermal units (lb/MMBtu); and (2) For units complying with the output-based standard, install, calibrate, maintain, and operate a fuel flow meter (or flow meters) to continuously measure the heat input to the affected unit; and (3) For units complying with the output-based standard, install, calibrate, maintain, and operate a watt meter (or meters) to continuously measure the gross electrical output of the unit in megawatt-hours; and (4) For combined heat and power units complying with the output-based standard, install, calibrate, maintain, and operate meters for useful recovered energy flow rate, temperature, and pressure, to continuously measure the total thermal energy output in British thermal units per hour (Btu/h). If the option to use a NOX CEMS is chosen: (a) Each NOX diluent CEMS must be installed and certified according to Performance Specification 2 (PS 2) in appendix B to this part, except the 7-day calibration drift is based on unit operating days, not calendar days. With state approval, Procedure 1 in appendix F to this part is not required. Alternatively, a NOX diluent CEMS that is installed and certified according to appendix A of part 75 of this chapter is acceptable for use under this subpart. The relative accuracy test audit (RATA) of the CEMS shall be performed on a lb/MMBtu basis. (b) As specified in §60.13(e)(2), during each full unit operating hour, both the NOX monitor and the diluent monitor must complete a minimum of one cycle of operation (sampling, analyzing, and data recording) for each 15-minute quadrant of the hour, to validate the hour. For partial unit operating hours, at least one valid data point must be obtained with each monitor for each quadrant of the hour in which the unit operates. For unit operating hours in which required quality assurance and maintenance activities are performed on the CEMS, a minimum of two valid data points (one in each of two quadrants) are required for each monitor to validate the NOX emission rate for the hour. (c) Each fuel flowmeter shall be installed, calibrated, maintained, and operated according to the manufacturer's instructions. Alternatively, with state approval, fuel flowmeters that meet the installation, certification, and quality assurance requirements of appendix D to part 75 of this chapter are acceptable for use under this subpart. (d) Each watt meter, steam flow meter, and each pressure or temperature measurement device shall be installed, calibrated, maintained, and operated according to manufacturer's instructions. (e) The owner or operator shall develop and keep on-site a quality assurance (QA) plan for all of the continuous monitoring equipment described in paragraphs (a), (c), and (d) of this section. For the CEMS and fuel flow meters, the owner or operator may, with state approval, satisfy the requirements of this paragraph by implementing the QA program and plan described in section 1 of appendix B to part 75of this chapter. For purposes of identifying excess emissions: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 60 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) All CEMS data must be reduced to hourly averages as specified in §60.13(h). (b) For each unit operating hour in which a valid hourly average, as described in §60.4345(b), is obtained for both NOX and diluent monitors, the data acquisition and handling system must calculate and record the hourly NOX emission rate in units of ppm or lb/MMBtu, using the appropriate equation from method 19 in appendix A of this part. For any hour in which the hourly average O2 concentration exceeds 19.0 percent O2 (or the hourly average CO2 concentration is less than 1.0 percent CO2), a diluent cap value of 19.0 percent O2 or 1.0 percent CO2 (as applicable) may be used in the emission calculations. (c) Correction of measured NOX concentrations to 15 percent O2 is not allowed. (d) If the permittee has installed and certified a NOX diluent CEMS to meet the requirements of part 75 of this chapter, states can approve that only quality assured data from the CEMS shall be used to identify excess emissions under this subpart. Periods where the missing data substitution procedures in subpart D of part 75 are applied are to be reported as monitor downtime in the excess emissions and monitoring performance report required under §60.7(c). (e) All required fuel flow rate, steam flow rate, temperature, pressure, and megawatt data must be reduced to hourly averages. (f) Calculate the hourly average NOX emission rates, in units of the emission standards under §60.4320, using either ppm for units complying with the concentration limit or the following equation for units complying with the output based standard: (1) For simple-cycle operation: "Equation 1" (Formula omitted...refer to regulation for exact formula notation). Where: E = hourly NOX emission rate, in lb/MWh, (NOX)h = hourly NOX emission rate, in lb/MMBtu, (HI)h = hourly heat input rate to the unit, in MMBtu/h, measured using the fuel flowmeter(s), e.g., calculated using Equation D-15a in appendix D to part 75 of this chapter, and P = gross energy output of the combustion turbine in MW. (2) For combined-cycle and combined heat and power complying with the output-based standard, use Equation 1 of this subpart, except that the gross energy output is calculated as the sum of the total electrical and mechanical energy generated by the combustion turbine, the additional electrical or mechanical energy (if any) generated by the steam turbine following the heat recovery steam generator, and 100 percent of the total useful thermal energy output that is not used to generate additional electricity or mechanical output, expressed in equivalent MW, as in the following equations: "Equation 2" (Formula omitted...refer to regulation for exact formula notation). Where: P = gross energy output of the stationary combustion turbine system in MW. (Pe)t = electrical or mechanical energy output of the combustion turbine in MW, (Pe)c = electrical or mechanical energy output (if any) of the steam turbine in MW, and "Equation 3" (Formula omitted...refer to regulation for exact formula notation). 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 61 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4365]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4370] # 030

# 031 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How can I be exempted from monitoring the total sulfur content of the fuel?

How often must I determine the sulfur content of the fuel? Where: Ps = useful thermal energy of the steam, measured relative to ISO conditions, not used to generate additional electric or mechanical output, in MW, Q = measured steam flow rate in lb/h, H = enthalpy of the steam at measured temperature and pressure relative to ISO conditions, in Btu/lb, and 3.413 x 106 = conversion from Btu/h to MW. Po = other useful heat recovery, measured relative to ISO conditions, not used for steam generation or performance enhancement of the combustion turbine. (3) For mechanical drive applications complying with the output-based standard, use the following equation: "Equation 4" (Formula omitted...refer to regulation for exact formula notation). Where: E = NOX emission rate in lb/MWh, (NOX)m = NOX emission rate in lb/h, BL = manufacturer's base load rating of turbine, in MW, and AL = actual load as a percentage of the base load. (g) Not Applicable (h) For combined cycle and combined heat and power units with heat recovery, use the calculated hourly average emission rates from paragraph (f) of this section to assess excess emissions on a 30 unit operating day rolling average basis, as described in §60.4380(b)(1). The permittee may elect not to monitor the total sulfur content of the fuel combusted in the turbine, if the fuel is demonstrated not to exceed potential sulfur emissions of 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for units located in continental areas and 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for units located in noncontinental areas or a continental area that the Administrator determines does not have access to natural gas and that the removal of sulfur compounds would cause more environmental harm than benefit. You must use one of the following sources of information to make the required demonstration: (a) The fuel quality characteristics in a current, valid purchase contract, tariff sheet or transportation contract for the fuel, specifying that the maximum total sulfur content for oil use in continental areas is 0.05 weight percent (500 ppmw) or less and 0.4 weight percent (4,000 ppmw) or less for noncontinental areas, the total sulfur content for natural gas use in continental areas is 20 grains of sulfur or less per 100 standard cubic feet and 140 grains of sulfur or less per 100 standard cubic feet for noncontinental areas, has potential sulfur emissions of less than less than 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas and has potential sulfur emissions of less than less than 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas; or (b) Representative fuel sampling data which show that the sulfur content of the fuel does not exceed 26 ng SO2/J (0.060 lb SO2/MMBtu) heat input for continental areas or 180 ng SO2/J (0.42 lb SO2/MMBtu) heat input for noncontinental areas. At a minimum, the amount of fuel sampling data specified in section 2.3.1.4 or 2.3.2.4 of appendix D to part 75 of this chapter is required. The frequency of determining the sulfur content of the fuel must be as follows: 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 62 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: (a) Not Applicable (b) Gaseous fuel. If you elect not to demonstrate sulfur content using options in §60.4365, and the fuel is supplied without intermediate bulk storage, the sulfur content value of the gaseous fuel must be determined and recorded once per unit operating day. (c) Custom schedules. Notwithstanding the requirements of paragraph (b) of this section, operators or fuel vendors may develop custom schedules for determination of the total sulfur content of gaseous fuels, based on the design and operation of the affected facility and the characteristics of the fuel supply. Except as provided in paragraphs (c)(1) and (c)(2) of this section, custom schedules shall be substantiated with data and shall be approved by the Administrator before they can be used to comply with the standard in §60.4330. (1) The two custom sulfur monitoring schedules set forth in paragraphs (c)(1)(i) through (iv) and in paragraph (c)(2) of this section are acceptable, without prior Administrative approval: (i) The owner or operator shall obtain daily total sulfur content measurements for 30 consecutive unit operating days, using the applicable methods specified in this subpart. Based on the results of the 30 daily samples, the required frequency for subsequent monitoring of the fuel's total sulfur content shall be as specified in paragraph (c)(1)(ii), (iii), or (iv) of this section, as applicable. (ii) If none of the 30 daily measurements of the fuel's total sulfur content exceeds half the applicable standard, subsequent sulfur content monitoring may be performed at 12-month intervals. If any of the samples taken at 12-month intervals has a total sulfur content greater than half but less than the applicable limit, follow the procedures in paragraph (c)(1)(iii) of this section. If any measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. (iii) If at least one of the 30 daily measurements of the fuel's total sulfur content is greater than half but less than the applicable limit, but none exceeds the applicable limit, then: (A) Collect and analyze a sample every 30 days for 3 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(B) of this section. (B) Begin monitoring at 6-month intervals for 12 months. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, follow the procedures in paragraph (c)(1)(iii)(C) of this section. (C) Begin monitoring at 12-month intervals. If any sulfur content measurement exceeds the applicable limit, follow the procedures in paragraph (c)(1)(iv) of this section. Otherwise, continue to monitor at this frequency. (iv) If a sulfur content measurement exceeds the applicable limit, immediately begin daily monitoring according to paragraph (c)(1)(i) of this section. Daily monitoring shall continue until 30 consecutive daily samples, each having a sulfur content no greater than the applicable limit, are obtained. At that point, the applicable procedures of paragraph (c)(1)(ii) or (iii) of this section shall be followed. (2) The owner or operator may use the data collected from the 720-hour sulfur sampling demonstration described in section 2.3.6 of appendix D to part 75 of this chapter to determine a custom sulfur sampling schedule, as follows: (i) If the maximum fuel sulfur content obtained from the 720 hourly samples does not exceed 20 grains/100 scf, no additional monitoring of the sulfur content of the gas is required, for the purposes of this subpart. (ii) If the maximum fuel sulfur content obtained from any of the 720 hourly samples exceeds 20 grains/100 scf, but none of the sulfur content values (when converted to weight percent sulfur) exceeds half the applicable limit, then the minimum required sampling frequency shall be one sample at 12 month intervals. (iii) If any sample result exceeds half the applicable limit, but none exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iii) of this section. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 63 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.213.] # 032

# 033
# 034 Plan approval terms and conditions.

Plan approval terms and conditions. Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.170--96.175. (iv) If the sulfur content of any of the 720 hourly samples exceeds the applicable limit, follow the provisions of paragraph (c)(1)(iv) of this section. (a) The permittee shall keep accurate and comprehensive records of the following information: 1) A copy of the stack test reports for any testing performed on Source ID P183. (b) The permittee shall keep accurate and comprehensive records of the following information on a monthly basis for Source ID P183: 1) The calculations of air contaminant emissions (including emission calculations during start-up, and shut-down) from Source ID P183 to verify compliance with nitrogen oxides, carbon monoxide, sulfur oxides, volatile organic compounds, formaldehyde, carbon dioxide equivalent, sulfuric acid, total HAPs, and particulate matter including total particulate matter including particulate matter having a nominal aerodynamic diameter less than 10 microns, particulate matter having a nominal aerodynamic diameter less than 2.5 microns, and condensable particulate matter (PM/PM10/PM2.5/condensable) emissions limitations in any 12 consecutive month period. 2) The amount of fuel used in Source ID P183. 3) The number of start-ups and shut-downs performed on Source ID P183 and the dates each occurs. 4) The type of each start-up (i.e. cold, warm, or hot). 5) The length of time of each start-up and shut-down (in minutes). 6) Hours of operation. 7) Actual heat input (in million Btu). 8) Actual power output (in megawatts). (c) The permittee shall keep accurate and comprehensive records on a continuous basis of the following information: 1) The inlet temperature and the pressure differential across the selective catalytic reduction (SCR) catalyst (ID C183). 2) The inlet temperature and the pressure differential across the oxidation catalyst (ID C183A). (e) These records shall be kept for a minimum of five years and shall be made available to the Department upon request. The permittee shall record the type (cold/warm/hot) and duration of each start-up and shut down for Source ID P183. The permittee shall also explain the reason for the startup/shutdown event. Additionally, the permittee shall perform and keep records of emissions calculations including the total emissions for each pollutant from each instance of startup and shutdown. These records shall be retained for a minimum of five years and shall be presented to the Department upon request. The owner or operator of a CAIR NOx unit shall maintain onsite the monitoring plan detailing the monitoring system and IV. RECORDKEEPING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 64 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §145.223.]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4375] # 035

# 036
# 037

# 038 Subpart A - General Provisions

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Supplemental monitoring, recordkeeping and reporting requirements for gross electrical output and useful thermal energy for units subject to 40 CFR 96.370--96.375.

Plan approval terms and conditions.

Address.

What reports must I submit? maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx unit shall provide the Department with a written copy of the monitoring plan and any updates made to the plan thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The owner or operator of a CAIR NOx ozone season unit shall maintain onsite the monitoring plan detailing the monitoring system and maintenance of the monitoring system, including quality assurance activities. The owner or operator of a CAIR NOx ozone season unit shall retain the monitoring plan for at least 5 years from the date that it is replaced by a new or revised monitoring plan. The owner or operator of a CAIR NOx ozone season unit shall provide the Department with a written copy of the monitoring plan by January 1, 2009, and thereafter within 3 calendar months of making updates to the plan. The owner or operator of a CAIR NOx ozone season unit shall retain records for at least 5 years from the date the record is created or the data collected as required by subsections (a) and (b), and the reports submitted to the Department and the EPA in accordance with subsections (c) and (d). The permittee shall submit the monthly records of emissions and hours of operation for Source ID P183 on a semi-annual basis to demonstrate compliance with any 12 consecutive month period of emissions and hours of operations limitations for Source ID P183. The semi-annual records shall contain the above information in any 12 consecutive month period. The semi-annual reports shall be submitted no later than March1 and September 1 of every year for the previous 12 consecutive month period. The submission of all requests, reports, applications, submittals and other communications required by this plan approval and federal regulations, must be made to both the Department of Environmental Protection and the Environmental Protection Agency. The Environmental Protection Agency copies may be sent to: Associate Director Office of Enforcement and Compliance Assistance (3AP20) U.S. EPA, Region III 1650 Arch Street Philadelphia, PA 19103-2029 and The Pennsylvania Department of Environmental Protection Air Quality Program Manager 208 W. Third Street, Suite 101 Williamsport, PA 17701-6448 V. REPORTING REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 65 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4380]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4385] # 039

# 040 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines How are excess emissions and monitor downtime defined for NOX ?

How are excess emissions and monitoring downtime defined for SO2? (a) For each affected unit required to continuously monitor parameters or emissions, or to periodically determine the fuel sulfur content under this subpart, you must submit reports of excess emissions and monitor downtime, in accordance with §60.7(c). Excess emissions must be reported for all periods of unit operation, including start-up, shutdown, and malfunction. (b) For each affected unit that performs annual performance tests in accordance with §60.4340(a), you must submit a written report of the results of each performance test before the close of business on the 60th day following the completion of the performance test. For the purpose of reports required under §60.7(c), periods of excess emissions and monitor downtime that must be reported are defined as follows: (a) Not Applicable (b) For turbines using continuous emission monitoring, as described in §§60.4335(b) and 60.4345: (1) An excess emissions is any unit operating period in which the 4-hour or 30-day rolling average NOX emission rate exceeds the applicable emission limit in §60.4320. For the purposes of this subpart, a “4-hour rolling average NOX emission rate” is the arithmetic average of the average NOX emission rate in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given hour and the three unit operating hour average NOX emission rates immediately preceding that unit operating hour. Calculate the rolling average if a valid NOX emission rate is obtained for at least 3 of the 4 hours. For the purposes of this subpart, a “30-day rolling average NOX emission rate” is the arithmetic average of all hourly NOX emission data in ppm or ng/J (lb/MWh) measured by the continuous emission monitoring equipment for a given day and the twenty-nine unit operating days immediately preceding that unit operating day. A new 30- day average is calculated each unit operating day as the average of all hourly NOX emissions rates for the preceding 30 unit operating days if a valid NOX emission rate is obtained for at least 75 percent of all operating hours. (2) A period of monitor downtime is any unit operating hour in which the data for any of the following parameters are either missing or invalid: NOX concentration, CO2 or O2 concentration, fuel flow rate, steam flow rate, steam temperature, steam pressure, or megawatts. The steam flow rate, steam temperature, and steam pressure are only required if you will use this information for compliance purposes. (3) For operating periods during which multiple emissions standards apply, the applicable standard is the average of the applicable standards during each hour. For hours with multiple emissions standards, the applicable limit for that hour is determined based on the condition that corresponded to the highest emissions standard. (c) Not Applicable If the permittee chooses the option to monitor the sulfur content of the fuel, excess emissions and monitoring downtime are defined as follows: (a) For samples of gaseous fuel and for oil samples obtained using daily sampling, flow proportional sampling, or sampling from the unit's storage tank, an excess emission occurs each unit operating hour included in the period beginning on the date and hour of any sample for which the sulfur content of the fuel being fired in the combustion turbine exceeds the applicable limit and ending on the date and hour that a subsequent sample is taken that demonstrates compliance with the sulfur limit. (b) If the option to sample each delivery of fuel oil has been selected, the permittee must immediately switch to one of the other oil sampling options (i.e., daily sampling, flow proportional sampling, or sampling from the unit's storage tank) if the sulfur content of a delivery exceeds 0.05 weight percent. The permittee must continue to use one of the other sampling 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 66 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4395]

[25 Pa. Code §127.12b] [40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4333] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] [25 Pa. Code §127.12b] # 041
# 042 # 043
# 044
# 045
# 046
# 047 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines

Subpart KKKK - Standards of Performance for Stationary Combustion Turbines When must I submit my reports? Plan approval terms and conditions. What are my general requirements for complying with this subpart? Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. Plan approval terms and conditions. options until all of the oil from the delivery has been combusted, and you must evaluate excess emissions according toparagraph (a) of this section. When all of the fuel from the delivery has been burned, you may resume using the asdelivered sampling option. (c) A period of monitor downtime begins when a required sample is not taken by its due date. A period of monitor downtime also begins on the date and hour of a required sample, if invalid results are obtained. The period of monitor downtime ends on the date and hour of the next valid sample. All reports required under §60.7(c) must be postmarked by the 30th day following the end of each 6-month period. Pursuant to the best available technology requirements of 25 Pa. Code Section 127.1 and 127.12, high efficiency inlet air filters shall be used in the air inlet section of Source ID P183. The permittee shall comply with the work practicce standards of 40 CFR Part 60 Section 60.4333 for Source ID P183. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.106(a)(1)(i), 96.121(a), 97.106(a)(1)(i) and 97.121(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.306(a)(1)(i), 96.321(a), 97.306(a)(1)(i) and 97.321(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR NOx ozone season unit commences operation. [Additional authority for this plan approval condition is also derived from 40 CFR Part 96 Sections 96.206(a)(1)(i), 96.221(a), 97.206(a)(1)(i) and 97.221(a)] The permittee shall submit a complete CAIR permit application at least 18 months before the date which the CAIR SO2 unit commences operation. Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall be a one of the following:a Siemens model 5000F4 DLN natural-gas-fired combustion turbines (CT) and steam turbines (ST) equipped with naturalVI.

VII. WORK PRACTICE REQUIREMENTS.

ADDITIONAL REQUIREMENTS. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 67 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: [25 Pa. Code §127.12b]

[25 Pa. Code §127.12b] [25 Pa. Code §145.204.]

[40 CFR Part 60 Standards of Performance for New Stationary Sources §40 CFR 60.4305] # 048 # 049 # 050

# 051 Subpart KKKK - Standards of Performance for Stationary Combustion Turbines Plan approval terms and conditions. Plan approval terms and conditions. Incorporation of Federal regulations by reference.

Does this subpart apply to my stationary combustion turbine? gas-fired duct burners (DB) and heat recovery steam generators (HRSG). The maximum heat input rating of each CT is 2259 MMBtu/hr (high heating value, HHV) and 2037 MMBtu/hr (lower heating value, LHV). Each DB will have a maximum heat input rating of 282.9 MMBtu/hr (HHV) OR a Siemens 5000F5 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2397 MMBtu/hr (HHV) and 2162 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 204.1 MMBtu/hr (HHV) OR a General Electric model 7FA.05 DLN natural-gas-fired CTs with STs equipped with natural-gas-fired DBs and HRSGs. The maximum heat input rating of each CT is 2253 MMBtu/hr (HHV) and 2040 MMBtu/hr (LHV). Each DB will have a maximum heat input rating of 267.3 MMBtu/hr (HHV). Pursuant to the best available technology requirements of 25 Pa. Code Sections 127.1 and 127.12, Source ID P183 shall be equipped with dry lo-NOx combustors. Pursuant to the best available technology provisions in 25 Pa. Code Sections 127.1 and 127.12, , the air contaminant emissions from Source ID P183 shall be controlled by a selective catalytic reduction (SCR) unit and an oxidation catalyst. (a) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR SO2 Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (b) Except as otherwise specified in 25 Pa. Code, Chapter 145, Subchapter D, the provisions of the CAIR NOx Ozone Season Trading Program, found in 40 CFR Part 96, including all appendices, future amendments and supplements thereto, are incorporated by reference. (c) In the event of a conflict between Federal regulatory provisions incorporated by reference in 40 CFR Part 96 and Pennsylvania regulatory provisions, the provision expressly set out in 25 Pa. Code Chapter 145, Subchapter D shall be followed unless the Federal provision is more stringent. Federal regulations that are cited in 25 Pa. Code Chapter 145, Subchapter D or that are cross-referenced in the Federal regulations incorporated by reference include any Pennsylvania modifications made to those Federal regulations. Source ID P183 is subject to the requirements of 40 CFR Part 60 Subpart KKKK Sections 60.4300 - 4420, Standards of Performance for Stationary Combustion Turbines, . The permittee shall comply with all applicable requirements of this subpart. 

### SECTION D. Source Level Plan Approval Requirements55-00001G

Page 68 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### SECTION E. Alternative Operation Requirements. No Alternative Operations exist for this Plan Approval facility.55-00001G

Page 69 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### SECTION F. Emission Restriction Summary. No emission restrictions listed in this section of the permit.55-00001G

Page 70 HUMMEL STA LLC/SUNBURY NAT GAS PLT

1042020 DEP Auth ID: 

### SECTION G. Miscellaneous.

# ****** End of Report ******

# pennsylvania DEPARTMENT OF ENVIRONMENTAL PROTECTION NORTHCENTRAL REGIONAL OFFICE 

## September 26,2014 Mr. Ed Griegel VP - Operations Hummel Station LLC Old Trail Road PO Box 517 Shamokin Dam, PA 17876 Re: Revision of Plan Approvals 55-0000lE, 55-00001F & 

## 55-0000lG Revision No. 1 Hummel Station LLC Natural Gas Repower Project Shamokin Dam Borough, Snyder County Dear Mr. Griegel: Please find enclosed the revised plan approvals for the natural gas repowering project and the constmction of a cooling tower at the facility located in Shamokin Dam Borough, Snyder County. The plan approval revision is for a Change of Ownership of the proposed combined cycle plant at the facility. 

# I Plan Approval i55-00001E, 55-0000lF and 55-00001G [was issued and became effective on September 26,2014. Jrhe plan approval will expire on \March 31,2017. f'lease include the following identification number with any correspondence to the Depatiment conceming this Plan Approval: [55-0000lE, 55-00001F, 55-0000lG.[ Any person aggrieved by this action may appeal, pursuant to Section 4 of the Environmental Hearing Board Act, 35 P.S. Section 7514, and the Administrative Agency Law, 2 Pa. C.S. Chapter SA, to the Environmental Hearing Board, Second Floor, Rachel Carson State Office Building, 400 Market Street, PO Box 8457, Harrisburg, PA 17105-8457,717.787.3483. TDD users may contact the Board through the Pennsylvania Relay Service, 800.654.5984. Appeals must be filed with the Environmental Hearing Board within 30 days of receipt of written notice of this action unless the appropriate statute provides a different time period. Copies of the appeal form and the Board's rules of practice and procedure may be obtained from the Board. The appeal form and the Board's mles of practice and procedure are also available in braille or on audiotape from the Secretary to the Board at 717.787.3483. This paragraph does not, in and of itself, create any right of appeal beyond that permitted by applicable statutes and decisional law.
Fax 570.327.3420 208 West Third Street 

## I Suite lO I 

## I Williamsport, PA 17701-6448 (P;_ l'linkd or1 f<ccyclccl f\lfWr- (/ 1 '(\) 

### www.depweb.state.pa.us

### Mr. 

### Ed Griegel Hummel Station LLC 2 

### September 26, 20 14 55-0000 l E, 55-0000 l F & 

### 55-0000 1 G 

### IF YOU WANT TO CHALLENGE THIS ACTION, YOUR APPEAL MUST REACH THE BOARD WITHIN 30 DAYS. YOU DO NOT NEED A LAWYER TO FILE AN APPEAL WITH THE BOARD. IMPORTANT LEGAL RIGHTS ARE AT STAKE, HOWEVER, SO YOU SHOULD SHOW THIS DOCUMENT TO A LAWYER AT ONCE. IF YOU CANNOT AFFORD A LAWYER, YOU MAY QUALIFY FOR FREE PRO BONO REPRESENTATION. CALL THE SECRETARY TO THE BOARD (717.787.3483) FOR MORE INFORMATION. If you have any questions concerning the terms and conditions of either plan apporval, please contact David M. Shimmel, P.E., Chief, New Source Review Section, at 570.327.3568.

# '"itAo--/f{Z~ Muhammad Q. Zaman Environmental Program Manager Air Quality Program Enclosure cc: File No. FAC/FAC OP Central Office, Air Quality Permits US EPA Region 3