AIR EMISSION PERMIT NO IS ISSUED TO. CUMMINS POWER GENERATION, INC rd Avenue Northeast Fridley, Anoka County, MN 55432

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1 AIR EMISSION PERMIT NO IS ISSUED TO CUMMINS POWER GENERATION, INC rd Avenue Northeast Fridley, Anoka County, MN The emission units, control equipment and emission stacks at the stationary source authorized in this permit are as described in the following permit application(s): Permit Type Application Date Issue Date Action Number Total Facility Operating Permit 06/15/ /20/ Total Facility Oper. Permit - Reissuance 02/21/2002 See below 002 This permit authorizes the Permittee to operate the stationary source at the address listed above unless otherwise noted in Table A. The Permittee must comply with all the conditions of the permit. Any changes or modifications to the stationary source must be performed in compliance with Minn. R to Terms used in the permit are as defined in the state air pollution control rules unless the term is explicitly defined in the permit. Permit Type: Federal; Part 70/Limits to Avoid New Source Review Issue Date: January 23, 2007 Expiration: January 23, 2012 Title I Conditions do not expire. Richard J. Sandberg, Manager Air Quality Permits Section Industrial Division for Brad Moore Acting Commissioner Minnesota Pollution Control Agency TDD (for hearing and speech impaired only): (651) Printed on recycled paper containing at least 10% fibers from paper recycled by consumers

2 TABLE OF CONTENTS Notice to the Permittee Permit Shield Facility Description Table A: Limits and Other Requirements Table B: Submittals Table C: Compliance Schedule - not used in this permit Appendix: 1. Part 63 Subpart MMMM Compliance Equations 2. Insignificant Activities Required Too Be Listed

3 NOTICE TO THE PERMITTEE: Your stationary source may be subject to the requirements of the Minnesota Pollution Control Agency s (MPCA) solid waste, hazardous waste, and water quality programs. If you wish to obtain information on these programs, including information on obtaining any required permits, please contact the MPCA general information number at: Metro Area (651) Outside Metro Area TTY (651) The rules governing these programs are contained in Minn. R. chs Written questions may be sent to: Minnesota Pollution Control Agency, 520 Lafayette Road North, St. Paul, Minnesota Questions about this air emission permit or about air quality requirements can also be directed to the telephone numbers and address listed above. PERMIT SHIELD: Subject to the limitations in Minn. R , compliance with the conditions of this permit shall be deemed compliance with the specific provision of the applicable requirement identified in the permit as the basis of each condition. Subject to the limitations of Minn. R and , subp. 2, notwithstanding the conditions of this permit specifying compliance practices for applicable requirements, any person (including the Permittee) may also use other credible evidence to establish compliance or noncompliance with applicable requirements. FACILITY DESCRIPTION: The Cummins Power Generation, Inc. (Permittee) manufactures electrical generators and controls. Most of the generators are assembled with an internal combustion engine. Facility activities also include developmental and durability testing. Manufacturing operations that produce emissions are mainly the application of protective coatings on generator parts, painting, and test operation of engine-generator sets. This permit action is a reissuance of the part 70 flex-cap operating permit. This re-issued permit updates and revises the original flex-cap permit issued in August The Permittee is authorized to make changes to the coating application equipment, engine test cells and stands, and coating bake ovens providing certain permit conditions are met. Changes authorized under the previous part 70 operating flex-cap permit made at the facility since issuance of the last part 70 flex-cap operating permit in August 1997 are incorporated into this permit.

4 TABLE A: LIMITS AND OTHER REQUIREMENTS A-1 01/23/07 Facility Name: Permit Number: Cummins Power Generation Inc/Onan Corp Table A contains limits and other requirements with which your facility must comply. The limits are located in the first column of the table (What To do). The limits can be emission limits or operational limits. This column also contains the actions that you must take and the records you must keep to show that you are complying with the limits. The second column of Table A (Why to do it) lists the regulatory basis for these limits. Appendices included as conditions of your permit are listed in Table A under total facility requirements. Subject Item: Total Facility What to do A. LIMITS hdr Why to do it Carbon Monoxide: less than or equal to 240 tons/year using 12-month Rolling Sum This permit establishes limits on the facility to keep it a minor source under New Source Review. The Permittee cannot make any change at the source that would make the source a major source under New Source Review until a permit amendment has been issued. This includes changes that might otherwise qualify as insignificant modifications and minor or moderate amendments. Nitrogen Oxides: less than or equal to 240 tons/year using 12-month Rolling Sum Sulfur Dioxide: less than or equal to 95 tons/year using 12-month Rolling Sum Total Particulate Matter: less than or equal to 95 tons/year using 12-month Rolling Sum Particulate Matter < 10 micron: less than or equal to 95 tons/year using 12-month Rolling Sum Volatile Organic Compounds: less than or equal to 240 tons/year using 12-month Rolling Sum B. OPERATIONAL REQUIREMENTS hdr The Permittee shall comply and upon written request demonstrate compliance, with National Primary and Secondary Ambient Air Quality Standards, 40 CFR pt. 50, and the Minnesota Ambient Air Quality Standards, Minn. R to Operation and Maintenance Plan: Retain at the stationary source an operation and maintenance plan for all air pollution control equipment. At a minimum, the O & M plan shall identify all air pollution control equipment and control practices and shall include a preventative maintenance program for the equipment and practices, a description of (the minimum but not necessarily the only) corrective actions to be taken to restore the equipment and practices to proper operation to meet applicable permit conditions, a description of the employee training program for proper operation and maintenance of the control equipment and practices, and the records kept to demonstrate plan implementation. Circumvention: Do not install or use a device or means that conceals or dilutes emissions, which would otherwise violate a federal or state air pollution control rule, without reducing the total amount of pollutant emitted. Operation Changes: In any shutdown, breakdown, or deviation the Permittee shall immediately take all practical steps to modify operations to reduce the emission of any regulated air pollutant. The Commissioner may require feasible and practical modifications in the operation to reduce emissions of air pollutants. No emissions units that have an unreasonable shutdown or breakdown frequency of process or control equipment shall be permitted to operate. Air Pollution Control Equipment: Operate all pollution control equipment whenever the corresponding process equipment and emission units are operated, unless otherwise noted in Table A. Fugitive Emissions: Do not cause or permit the handling, use, transporting, or storage of any material in a manner which may allow avoidable amounts of particulate matter to become airborne. Comply with all other requirements listed in Minn. R Noise: The Permittee shall comply with the noise standards set forth in Minn. R to at all times during the operation of any emission units. This is a state only requirement and is not federally enforceable. Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R ; Minn. R , subp. 2 to avoid violation of NOx ambient air standard at Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R CFR pt. 50; Minn. Stat. Section , subds. 4a & 9; Minn. R , supbs. 7A, 7L & 7M; Minn. R , subps. 1, 2 & 4; Minn. R Minn. R , subp. 14 and Minn. R , subp. 16(J) Minn. R Minn. R , subp. 4 Minn. R , subp. 2; Minn. R , subp. 16(J) Minn. R Minn. R

5 TABLE A: LIMITS AND OTHER REQUIREMENTS A-2 01/23/07 Facility Name: Permit Number: Cummins Power Generation Inc/Onan Corp The Permittee shall comply with the General Condtions listed in Minn. R. Minn. R , subp , subp. 16. Lead-containing coating materials prohibited: The Permittee shall not use any Minn. R , subp. 2 lead-containing coating materials. Inspections: Upon presentation of credentials and other documents as may be Minn. R , subp. 9(A) required by law, allow the Agency, or its representative, to enter the Permittee's premises to have access to and copy any records required by this permit, to inspect at reasonable times (which include any time the source is operating) any facilities, equipment, practices or operations, and to sample or monitor any substances or parameters at any location. C. FLEXIBLE PERMIT CONDITIONS hdr The Permittee is authorized to make the following changes: 1) Move or modify listed emission units in GP 001, GP 003, and GP 004; 2) Replace listed units with units similar to those in GP001, GP 003, and GP 004; and 3) Add additional units similar to those listed in GP 001, GP 003, and GP 004. Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R The Permittee is allowed to make these changes providing the following conditions are met: 1) The capacity of replacement units is less than or equal to the unit it replaces; 2) For coating equipment, transfer efficiency is 75% or greater; 3) PM, PM10, SO2, NOx, CO, and VOC emissions are tracked and calculated as specified in this permit; 4) Any new or modified GP 004 spray booth is evaluated and certifed to have at least 80% capture efficiency; 5) All requirements as applicable for GP001, GP 003, and GP 004 are met; and 6) No additional requirements not already in this permit would apply to new or modified emissions units. (continued below) (continued from above) This authorization allows the Permittee to conduct operational tests on various internal combustion engines, move engine test stands and cells listed under GP 001, and replace or add test stands and cells similar to those listed under GP 001. Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R If a proposed change triggers an applicable requirement not already in this permit, the change must be permitted using the appropriate procedure in Minn. R. ch Equipment Labeling: The Permittee shall permanently affix a unique number to each emissions unit for tracking purposes. The numbers shall correlate the unit to the appropriate EU and GP numbers used in this permit. The number can be affixed by placard, stencil, or other means. The number shall be maintained so that it is readable and visible at all times from a safe distance. If equipment is added, it shall be given a new unique number; numbers from replaced or removed equipment shall not be reused. Insignificant Activities: The Permittee shall evaluate the emissions from changes made under Minn. R on an annual basis. The Permittee shall not make any change that causes emissions to exceed permit thresholds in Minn. R. ch or 40 CFR Section without first obtaining a major permit amendment. D. MONITORING hdr Minn. R , subp. 2 Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Monitoring Equipment Calibration: Annually calibrate all required monitoring equipment. Operation of Monitoring Equipment: Unless otherwise noted in Tables A, B, and/or C, monitoring a process or control equipment connected to that process is not necessary during periods when the process is shutdown, or during checks of the monitoring systems, such as calibration checks and zero and span adjustments. If monitoring records are required, they should reflect any such periods of process shutdown or checks of the monitoring system. Minn. R , subp. 4(D) Minn. R , subp. 4(D)

6 TABLE A: LIMITS AND OTHER REQUIREMENTS A-3 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: Total Facility Emissions Monitoring: by the last day of each month, the Permittee shall calculate and record total facility emissions of each of the following pollutants for the previous month: Minn. R , subp. 4 & 5 1. PM 2. PM10 3. SO2 4. NOx 5. CO 6. VOC SO2, NOx, and CO total facility monthly emissions are determined by summing the monthly emissions of each of these pollutants determined in GP 001 and GP 005. PM, PM10, and VOC total facility monthly emissions are determined by summing the monthly emissions of each of these pollutants determined in GP 001, GP 004, and GP 005. E. RECORDKEEPING hdr Recordkeeping: Maintain records describing any insignificant modifications (as required by Minn. R , subp. 3) or changes contravening permit terms (as required by Minn. R , subp. 2), including records of the emissions resulting from those changes. Recordkeeping: Retain all records at the stationary source for a period of five (5) years from the date of monitoring, sample, measurement, or report. Records which must be retained at this location include all calibration and maintenance records, all original strip-chart recordings for continuous monitoring instrumentation, and copies of all reports required by the permit. Records must conform to the requirements listed in Minn. R , subp. 5(A). Equipment List Inventory: The Permittee shall maintain a written list of all emission units on site that are not insignificant activities. The list shall include the type of equipment; identifying number; dates of installation, modification, reconstruction, and/or removal; and reference to applicable Standards of Performance for New Stationary Sources (40 CFR pt. 60) and National Emission Standards for Hazardous Air Pollutants (40 CFR pt. 63). Updating the Equipment List Inventory: The list shall be updated to include new, modified, or relocated equipment before making a change. New emission units may be installed if they are of a type already listed in this permit, and existing units may be modified or moved, without obtaining a permit amendment, provided total facility emissions remain within the limits specified above. F. REPORTING & SUBMITTALS hdr Minn. R , subp. 5(B) Minn. R , subp. 5(C) Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Title I Condition: to avoid classification as major source and modification under 40 CFR Section and Minn. R Shutdown Notifications: Notify the Commissioner at least 24 hours in advance of a planned shutdown of any control equipment or process equipment if the shutdown would cause any increase in the emissions of any regulated air pollutant. If the owner or operator does not have advance knowledge of the shutdown, notification shall be made to the Commissioner as soon as possible after the shutdown. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R , subp. 3. At the time of notification, the owner or operator shall inform the Commissioner of the cause of the shutdown and the estimated duration. The owner or operator shall notify the Commissioner when the shutdown is over. Breakdown Notifications: Notify the Commissioner within 24 hours of a breakdown of more than one hour duration of any control equipment or process equipment if the breakdown causes any increase in the emissions of any regulated air pollutant. The 24-hour time period starts when the breakdown was discovered or reasonably should have been discovered by the owner or operator. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R , subp. 2. At the time of notification or as soon as possible thereafter, the owner or operator shall inform the Commissioner of the cause of the breakdown and the estimated duration. The owner or operator shall notify the Commissioner when the breakdown is over. Notification of Deviations Endangering Human Health or the Environment: As soon as possible after discovery, notify the Commissioner or the state duty officer, either orally or by facsimile, of any deviation from permit conditions which could endanger human health or the environment. Minn. R , subp. 3 Minn. R , subp. 2 Minn. R , subp. 1

7 TABLE A: LIMITS AND OTHER REQUIREMENTS A-4 01/23/07 Facility Name: Permit Number: Cummins Power Generation Inc/Onan Corp Notification of Deviations Endangering Human Health or the Environment Report: Minn. R , subp. 1 Within 2 working days of discovery, notify the Commissioner in writing of any deviation from permit conditions which could endanger human health or the environment. Include the following information in this written description: 1. the cause of the deviation; 2. the exact dates of the period of the deviation, if the deviation has been corrected; 3. whether or not the deviation has been corrected; 4. the anticipated time by which the deviation is expected to be corrected, if not yet corrected; and 5. steps taken or planned to reduce, eliminate, and prevent reoccurrence of the deviation. Application for Permit Amendment: If you need a permit amendment, submit Minn. R through Minn. R application in accordance with the requirements of Minn. R through Minn. R Submittal dates vary, depending on the type of amendment needed. Extension Requests: The Permittee may apply for an Administrative Amendment Minn. R , subp. 1(H) to extend a deadline in a permit by no more than 120 days, provided the proposed deadline extension meets the requirements of Minn. R , subp. 1(H). Emission Inventory Report: due on or before April 1 of each calendar year Minn. R through Minn. R following permit issuance. Submit the report on a form approved by the Commissioner. Emission Fees: due 60 days after receipt of an MPCA bill. Minn. R through Minn. R

8 TABLE A: LIMITS AND OTHER REQUIREMENTS A-5 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: Subject Item: Associated Items: GP 001 Test Stands & Cells; Generators EU kW Engine Test EU 091 Cell 19 EU 095 Cell 17 EU 099 Cell 15 EU 103 Cell 13 EU 107 Cell 11 EU 111 Cell 9 EU 115 Cell 7 EU 119 Cell 5 EU 120 Cell 1 (Cold Room) EU 123 Cell 3 EU 136 Cell 30 EU 151 Cell 23 EU 152 Cell 21 EU 154 Big Test Cell 7 EU 167 Big Test Cell 8 EU 179 Big Test Cell 9 EU 189 Big Test Cell 1 EU 190 Big Test Cell 2 EU 191 Big Test Cell 3 EU 192 Big Test Cell 4 EU 193 Big Test Cell 5 EU 195 Big Test Cell 6 EU 351 Cell 11 EU 423 Generator 1 EU 424 Generator 2 EU 425 Generator 3 EU 426 Generator 4 EU 601 Development Cell 133 EU 602 Development Cell 134 EU 603 Development Cell 135 EU 604 Development Cell 136 EU 605 Development Cell 137 EU 606 Development Cell 138 EU 607 Development Cell 139 EU 651 Endurance Cell 201 EU 652 Endurance Cell 202 EU 653 Endurance Cell 205 EU 654 Endurance Cell 206

9 TABLE A: LIMITS AND OTHER REQUIREMENTS A-6 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: Associated Items: EU 655 Existing Sound Cell EU 656 Generator 5 What to do GP 001 REQUIREMENTS ALSO APPLY TO ENGINES TESTED ON OUTDOOR hdr TEST PADS (OUTDOOR ENGINE TEST PADS ARE NOT LISTED AS GP 001 ASSOCIATED ITEMS EMISSION UNITS) A. LIMITS AND OPERATING REQUIREMENTS hdr Why to do it Sulfur Dioxide: less than or equal to 0.5 lbs/million Btu heat input Minn. R , subp. 2 Opacity: less than or equal to 20 percent opacity once operating temperatures have Minn. R , subp. 1 been attained. Permitted Fuels: diesel fuel, biodiesel, natural gas, liquid propane gas (LPG), JP-8 Minn. R , subp. 35a (military fuel), gasoline, and gasoline-ethanol blends. Diesel Fuel Sulfur Content: less than or equal to percent by weight (15 ppm Minn. R , subp. 2 by weight). B. MONITORING AND RECORDKEEPING hdr Diesel Fuel Supplier Certification: The Permittee shall obtain and maintain a fuel supplier certification for each shipment of diesel fuel, either specifying the actual sulfur content in percent by weight or certifying that the sulfur content does not exceed percent (15 ppm) by weight. The Permittee may use the the bill of lading for each diesel fuel delivery in lieu of a certification to demonstrate the fuel sulfur content does not exceed % by weight. Fuel Usage Recordkeeping: by the last day of each month, the Permittee shall calculate and record the monthly usage of each permitted fuel type. Natural gas usage records shall be in million cubic feet (mmcf), and diesel fuel, gasoline, JP-8, and liquid propane gas usage shall be in thousand gallons (mgal). Separate fuel usage records shall be kept for diesel-fired engines >600 hp and diesel-fired engines 600 hp or less. Minn. R , subps. 4 & 5 Title I Condition: to avoid major source status under 40 CFR Section and Minn. R JP-8 usage records shall be kept on an equivalent diesel fuel usage basis. One gallon of JP-8 is equivalent to two gallons of diesel fuel. JP-8 combusted in engines <600 hp shall be converted to gallons of diesel fuel used in engines <600 hp. JP-8 usage in engines 600 hp or greater shall be converted to gallons of diesel fuel used in engines 600 hp or greater. This requirement applies to fuels combusted in all reciprocating internal combustion engines including engines tested outdoors. Emission Factors for Internal Combustion Engines: The Permittee shall use the following emission factors to calculate emissions from internal combustion engines. Minn. R , subp. 4 Natural Diesel Gas Fuel >600 hp Gasoline lb/mmcf lb/mgal lb/mgal Pollutant PM PM SO NOx VOC CO (continued below) Emission Factors for Internal Combustion Engines: The Permittee shall use the following emission factors to calculate emissions from internal combustion engines. Minn. R , subp. 4 Diesel Fuel LPG 600 hp >25 hp or less lb/mgal lb/mgal Pollutant PM PM SO NOx VOC CO

10 TABLE A: LIMITS AND OTHER REQUIREMENTS A-7 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: Monthly Emission Calculations: by the last day of each month, calculate and record the GP 001 emissions from the previous month of PM, PM10, SO2, NOx, CO, and VOC using the following equation: Minn. R , subp. 4 & 5 E = SUM[EFf * Ff] where: E = emissions of a pollutant EFf = fuel-specific emission factor for the pollutant Ff = usage of specific fuel during the previous month (mmcf of natural gas; mgal of gasoline, LPG, or diesel fuel) Gasoline-ethanol blend usage shall be included in gasoline usage, biodiesel usage shall be included in diesel fuel usage, and JP-8 shall be converted to equivalent diesel fuel usage and included in diesel fuel usage (as required above).

11 TABLE A: LIMITS AND OTHER REQUIREMENTS A-8 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: Subject Item: Associated Items: GP 002 Part 63 Subpart MMMM NESHAP Requirements EU 155 Big Paint Booth EU 164 Class B Paint Booth EU 166 Small Booth EU 342 Black Primer E-Coat Bath/Tunnel EU 343 Black E Coat Cure Oven EU 344 Green Topcoat E-Coat Bath/Tunnel EU 345 Green E Cure Oven EU 347 Paint Cure Oven EU 349 E-coat Spray Paint Booth EU 660 Alternator Impregnation Station IO-221 EU 661 Alternator Impregnation Station IO-226 EU 662 Alternator Impregnation Station IO-215 EU 663 Alternator Impregnation Station IO-217 EU 666 Total Enclosure Dry Paint Booth What to do Refer to GP 003 for additional requirements for bake ovens and to GP 004 for additional requirements for coating application equipment. The facility is an existing affected source that applies general use coatings to miscellaneous metal products. The compliance date for 40 CFR Part 63, Subpart MMMM is January 2, The Permittee must meet the notification requirements in section according to the dates specified in that section and in subpart A of this part. Some of the notifications must be submitted before the compliance dates described in paragraphs (a) through (c) of section The affected source is the collection of all of the items listed in section (b)(1) through (4) that are used for surface coating of miscellaneous metal parts and products within each subcategory. Why to do it hdr 40 CFR Sections , (b), and (d) 40 CFR Section (b) (1) All coating operations as defined in section ; (2) All storage containers and mixing vessels in which coatings, thinners and/or other additives, and cleaning materials are stored or mixed; (3) All manual and automated equipment and containers used for conveying coatings, thinners and/or other additives, and cleaning materials; and (4) All storage containers and all manual and automated equipment and containers used for conveying waste materials generated by a coating operation. Organic HAP: less than or equal to 2.6 pounds organic HAP per gallon coating solids used during each 12-month compliance period. The Permittee must include all coatings (as defined in section ), thinners and/or other additives, and cleaning materials used in the affected source when determining whether the organic HAP emission rate is equal to or less than the applicable emission limit in section To make this determination, the Permittee must use at least one of the three compliance options listed in paragraphs (a) through (c) of this section. The Permittee may apply any of the compliance options to an individual coating operation, or to multiple coating operations as a group, or to the entire affected source. The Permittee may use different compliance options for different coating operations, or at different times on the same coating operation. The Permittee may employ different compliance options when different coatings are applied to the same part, or when the same coating is applied to different parts. 40 CFR Section (b)(1) 40 CFR Section (b)

12 TABLE A: LIMITS AND OTHER REQUIREMENTS A-9 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: However, the Permittee may not use different compliance options at the same time on the same coating operation. If the Permittee switches between compliance options for any coating operation or group of coating operations, the Permittee must document this switch as required by section (c), and the Permittee must report it in the next semiannual compliance report required in section Emission rate without add-on controls option. Demonstrate that, based on the coatings, thinners and/or other additives, and cleaning materials used in the coating operation(s), the organic HAP emission rate for the coating operation(s) is less than or equal to the applicable emission limit in section section , calculated as a rolling 12-month emission rate and determined on a monthly basis. The Permittee must meet all the requirements of sections , , and to demonstrate compliance with the emission limit using this option. For any coating operation(s) on which the Permittee uses the compliant material option or the emission rate without add-on controls option, the Permittee is not required to meet any operating limits. For any coating operation(s) on which the Permittee uses the compliant material option or the emission rate without add-on controls option, the Permittee is not required to meet any work practice standards. The Permittee must be in compliance with the emission limitations in this subpart as specified in paragraphs (a)(1) and (2) of this section. 40 CFR Section (b) (cont.) 40 CFR Section (a) 40 CFR Section (a) 40 CFR Section (a)(1) and (b) Any coating operation(s) for which the Permittee uses the compliant material option or the emission rate without add-on controls option, as specified in section (a) and (b), must be in compliance with the applicable emission limit in section at all times. The Permittee must always operate and maintain the affected source according to the provisions in section 63.6(e)(1)(i). Table 2 of subpart MMMM shows which parts of the General Provisions in sections 63.1 through apply to the Permittee. (a) General. The Permittee must submit the notifications in sections 63.7(b) and (c), 63.8(f)(4), and 63.9(b) through (e) and (h) that apply to the Permittee by the dates specified in those sections, except as provided in paragraphs (b) and (c) of this section. 40 CFR Section CFR Section (a), (b), (c)(1)-(c)(8)(ii) (b) Initial Notification. For an existing affected source, the Permittee must submit the initial notification no later than 1 year after January 2, (c) Notification of compliance status. The Permittee must submit the notification of compliance status required by section 63.9(h) no later than 30 calendar days following the end of the initial compliance period described in sections , , or that applies to the affected source. The notification of compliance status must contain the information specified in paragraphs (c)(1) through (11) of this section and in section 63.9(h). (1) Company name and address. (2) Statement by a responsible official with that official's name, title, and signature, certifying the truth, accuracy, and completeness of the content of the report. (3) Date of the report and beginning and ending dates of the reporting period. The reporting period is the initial compliance period described in sections , , or that applies to the affected source. (4) Identification of the compliance option or options specified in section that were used on each coating operation in the affected source during the initial compliance period. (5) Statement of whether or not the affected source achieved the emission limitations for the initial compliance period. (6) If the Permittee had a deviation, include the information in paragraphs (c)(6)(i) and (ii) of this section. (i) A description and statement of the cause of the deviation. (ii) If the Permittee failed to meet the applicable emission limit in section , include all the calculations used to determine the kg (lb) of organic HAP emitted per liter (gal) coating solids used. The Permittee does not need to submit information provided by the materials' suppliers or manufacturers, or test reports. (7) For each of the data items listed in paragraphs (c)(7)(i) through (iv) of this section that is required by the compliance option(s) the Permittee used to demonstrate compliance with the emission limit, include an example of how the Permittee determined the value, including calculations and supporting data. Supporting data may include a copy of the information provided by the supplier or manufacturer of the example coating or material, or a summary of the results of testing conducted according to section (a), (b), or (c). The Permittee does not need to submit copies of any test reports. (i) Mass fraction of organic HAP for one coating, for one thinner and/or other additive, and for one cleaning material. (ii) Volume fraction of coating solids for one coating. 40 CFR Section (a), (b), (c)(1)-(c)(8)(ii) (cont.) 40 CFR Section (a), (b), (c)(1)-(c)(8)(ii) (cont.) 40 CFR Section (a), (b), (c)(1)-(c)(8)(ii) (cont.)

13 TABLE A: LIMITS AND OTHER REQUIREMENTS A-10 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: (iii) Density for one coating, one thinner and/or other additive, and one leaning material, except that if the Permittee uses the compliant material option, only the example coating density is required. (iv) The amount of waste materials and the mass of organic HAP contained in the waste materials for which the Permittee is claiming an allowance in Equation 1 of section (8) The calculation of kg (lb) of organic HAP emitted per liter (gal) coating solids used for the compliance option(s) the Permittee used, as specified in paragraphs (c)(8)(i) through (iii) of this section. (ii) For the emission rate without add-on controls option, provide the calculation of the total mass of organic HAP emissions for each month; the calculation of the total volume of coating solids used each month; and the calculation of the 12-month organic HAP emission rate using Equations 1 and 1A through 1C, 2, and 3, respectively, of section CFR Section (a), (b), (c)(1)-(c)(8)(ii) (cont.) (a) Semiannual compliance reports. The Permittee must submit semiannual compliance reports for each affected source according to the requirements of paragraphs (a)(1) through (7) of this section. The semiannual compliance reporting requirements may be satisfied by reports required under other parts of the Clean Air Act (CAA), as specified in paragraph (a)(2) of this section. (1) Dates. Unless the Administrator has approved or agreed to a different schedule for submission of reports under section 63.10(a), the Permittee must prepare and submit each semiannual compliance report according to the dates specified in paragraphs (a)(1)(i) through (iv) of this section. Note that the information reported for each of the months in the reporting period will be based on the last 12 months of data prior to the date of each monthly calculation. (i) The first semiannual compliance report must cover the first semiannual reporting period which begins the day after the end of the initial compliance period described in sections , , or that applies to the affected source and ends on June 30 or December 31, whichever date is the first date following the end of the initial compliance period. (ii) Each subsequent semiannual compliance report must cover the subsequent semiannual reporting period from January 1 through June 30 or the semiannual reporting period from July 1 through December 31. (iii) Each semiannual compliance report must be postmarked or delivered no later than July 31 or January 31, whichever date is the first date following the end of the semiannual reporting period. (iv) For each affected source that is subject to permitting regulations pursuant to 40 CFR part 70 or 40 CFR part 71, and if the permitting authority has established dates for submitting semiannual reports pursuant to 40 CFR 70.6(a)(3)(iii)(A) or 40 CFR 71.6(a)(3)(iii)(A), the Permittee may submit the first and subsequent compliance reports according to the dates the permitting authority has established instead of according to the date specified in paragraph (a)(1)(iii) of this section. (2) Inclusion with title V report. Each affected source that has obtained a title V operating permit pursuant to 40 CFR part 70 or 40 CFR part 71 must report all deviations as defined in this subpart in the semiannual monitoring report required by 40 CFR 70.6(a)(3)(iii)(A) or 40 CFR 71.6(a)(3)(iii)(A). If an affected source submits a semiannual compliance report pursuant to this section along with, or as part of, the semiannual monitoring report required by 40 CFR 70.6(a)(3)(iii)(A) or 40 CFR 71.6(a)(3)(iii)(A), and the semiannual compliance report includes all required information concerning deviations from any emission limitation in this subpart, its submission will be deemed to satisfy any obligation to report the same deviations in the semiannual monitoring report. However, submission of a semiannual compliance report shall not otherwise affect any obligation the affected source may have to report deviations from permit requirements to the permitting authority. (3) General requirements. The semiannual compliance report must contain the information specified in paragraphs (a)(3)(i) through (vii) of this section, and the information specified in paragraphs (a)(4) through (7) and (c)(1) of this section that is applicable to the affected source. (i) Company name and address. (ii) Statement by a responsible official with that official's name, title, and signature, certifying the truth, accuracy, and completeness of the content of the report. (iii) Date of report and beginning and ending dates of the reporting period. The reporting period is the 6-month period ending on June 30 or December 31. Note that the information reported for each of the 6 months in the reporting period will be based on the last 12 months of data prior to the date of each monthly calculation. 40 CFR Section (a)(1)-(a)(4), (a)(6) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.)

14 TABLE A: LIMITS AND OTHER REQUIREMENTS A-11 01/23/07 Facility Name: Permit Number: Cummins Power Generation Inc/Onan Corp (iv) Identification of the compliance option or options specified in section that the Permittee used on each coating operation during the reporting period. If the Permitttee switched between compliance options during the reporting period, the Permittee must report the beginning and ending dates for each option the Permittee used. (v) If the Permittee used the emission rate without add-on controls or the emission rate with add-on controls compliance option (section (b) or (c)), the calculation results for each rolling 12-month organic HAP emission rate during the 6-month reporting period (4) No deviations. If there were no deviations from the emission limitations in sections , , and that apply to the Permittee, the semiannual compliance report must include a statement that there were no deviations from the emission limitations during the reporting period. If the Permittee used the emission rate with add-on controls option and there were no periods during which the continuous parameter monitoring systems (CPMS) were out-of-control as specified in sectoin 63.8(c)(7), the semiannual compliance report must include a statement that there were no periods during which the CPMS were out-of-control during the reporting period (6) Deviations: Emission rate without add-on controls option. If the Permittee used the emission rate without add-on controls option and there was a deviation from the applicable emission limit in section , the semiannual compliance report must contain the information in paragraphs (a)(6)(i) through (iii) of this section. (i) The beginning and ending dates of each compliance period during which the 12-month organic HAP emission rate exceeded the applicable emission limit in section (ii) The calculations used to determine the 12-month organic HAP emission rate for the compliance period in which the deviation occurred. The Permittee must submit the calculations for Equations 1, 1A through 1C, 2, and 3 of section ; and if applicable, the calculation used to determine mass of organic HAP in waste materials according to section (e)(4). The Permittee does not need to submit background data supporting these calculations (e.g., information provided by materials suppliers or manufacturers, or test reports). (iii) A statement of the cause of each deviation. The Permittee must collect and keep records of the data and information specified in this section. Failure to collect and keep these records is a deviation from the applicable standard. (a) A copy of each notification and report that the Permittee submitted to comply with this subpart, and the documentation supporting each notification and report (b) A current copy of information provided by materials suppliers or manufacturers, such as manufacturer's formulation data, or test data used to determine the mass fraction of organic HAP and density for each coating, thinner and/or other additive, and cleaning material, and the volume fraction of coating solids for each coating. If the Permittee conducted testing to determine mass fraction of organic HAP, density, or volume fraction of coating solids, the Permittee must keep a copy of the complete test report. If the Permittee uses information provided to the Permittee by the manufacturer or supplier of the material that was based on testing, the Permittee must keep the summary sheet of results provided to the Permittee by the manufacturer or supplier. The Permittee are not required to obtain the test report or other supporting documentation from the manufacturer or supplier. (c) For each compliance period, the records specified in paragraphs (c)(1) through (4) of this section. (1) A record of the coating operations on which the Permittee used each compliance option and the time periods (beginning and ending dates and times) for each option the Permittee used (3) For the emission rate without add-on controls option, a record of the calculation of the total mass of organic HAP emissions for the coatings, thinners and/or other additives, and cleaning materials used each month using Equations 1, 1A through 1C, and 2 of section ; and, if applicable, the calculation used to determine mass of organic HAP in waste materials according to section (e)(4); the calculation of the total volume of coating solids used each month using Equation 2 of section ; and the calculation of each 12-month organic HAP emission rate using Equation 3 of section (d) A record of the name and volume of each coating, thinner and/or other additive, and cleaning material used during each compliance period... (e) A record of the mass fraction of organic HAP for each coating, thinner and/or other additive, and cleaning material used during each compliance period unless the material is tracked by weight. (f) A record of the volume fraction of coating solids for each coating used during each compliance period. (g) If the Permittee uses either the emission rate without add-on controls or the emission rate with add-on controls compliance option, the density for each coating, thinner and/or other additive, and cleaning material used during each compliance period. 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a)(1)-(a)(4), (a)(6) (cont.) 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) (cont.) 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) (cont.) 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) (cont.)

15 TABLE A: LIMITS AND OTHER REQUIREMENTS A-12 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: (h) If the Permittee uses an allowance in Equation 1 of section for organic HAP contained in waste materials sent to or designated for shipment to a treatment, storage, and disposal facility (TSDF) according to section (e)(4), the Permittee must keep records of the information specified in paragraphs (h)(1) through (3) of this section. (1) The name and address of each TSDF to which the Permittee sent waste materials for which the Permittee uses an allowance in Equation 1 of section ; a statement of which subparts under 40 CFR parts 262, 264, 265, and 266 apply to the facility; and the date of each shipment. (2) Identification of the coating operations producing waste materials included in each shipment and the month or months in which the Permittee used the allowance for these materials in Equation 1 of section (3) The methodology used in accordance with section (e)(4) to determine the total amount of waste materials sent to or the amount collected, stored, and designated for transport to a TSDF each month; and the methodology to determine the mass of organic HAP contained in these waste materials. This must include the sources for all data used in the determination, methods used to generate the data, frequency of testing or monitoring, and supporting calculations and documentation, including the waste manifest for each shipment. 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) (cont.) 40 CFR Section (a), (b), (c)(1) and (c)(3), (d), (e), (f), (g), (h) and (j) (cont.) (j) The Permittee must keep records of the date, time, and duration of each deviation. (a) The Permittee's records must be in a form suitable and readily available for expeditious review, according to section 63.10(b)(1). Where appropriate, the records may be maintained as electronic spreadsheets or as a database. (b) As specified in section 63.10(b)(1), the Permittee must keep each record for 5 years following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c) The Permittee must keep each record on-site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record according to section 63.10(b)(1). The Permittee may keep the records off-site for the remaining 3 years. The Permittee must complete the initial compliance demonstration for the initial compliance period according to the requirements of section The initial compliance period begins on the applicable compliance date specified in section and ends on the last day of the 12th month following the compliance date. If the compliance date occurs on any day other than the first day of a month, then the initial compliance period extends through the end of that month plus the next 12 months. The Permittee must determine the mass of organic HAP emissions and volume of coating solids used each month and then calculate an organic HAP emission rate at the end of the initial compliance period. The initial compliance demonstration includes the calculations according to section and supporting documentation showing that during the initial compliance period the organic HAP emission rate was equal to or less than the applicable emission limit in section The Permittee may use the emission rate without add-on controls option for any individual coating operation, for any group of coating operations in the affected source, or for all the coating operations in the affected source. The Permittee must use either the compliant material option or the emission rate with add-on controls option for any coating operation in the affected source for which the Permittee does not use this option. To demonstrate initial compliance using the emission rate without add-on controls option, the coating operation or group of coating operations must meet the applicable emission limit in section , but is not required to meet the operating limits or work practice standards in sections and , respectively. The Permittee must conduct a separate initial compliance demonstration for each general use, magnet wire, rubber-to-metal, and extreme performance fluoropolymer coating operation unless the Permittee is not demonstrating compliance with a predominant activity or facility-specific emission limit as provided in section (c). If the Permittee is demonstrating compliance with a predominant activity or facility-specific emission limit as provided in section (c), the Permittee must demonstrate that all coating operations included in the predominant activity determination or calculation of the facility-specific emission limit comply with that limit. The Permittee must meet all the requirements of this section. 40 CFR Section CFR Section CFR Section CFR Section (cont.)

16 TABLE A: LIMITS AND OTHER REQUIREMENTS A-13 01/23/07 Facility Name: Cummins Power Generation Inc/Onan Corp Permit Number: When calculating the organic HAP emission rate according to this section, do not include any coatings, thinners and/or other additives, or cleaning materials used on coating operations for which the Permittee uses the compliant material option or the emission rate with add-on controls option. The Permittee does not need to redetermine the mass of organic HAP in coatings, thinners and/or other additives, or cleaning materials that have been reclaimed on-site (or reclaimed off-site if the Permittee has documentation showing that they received back the exact same materials that were sent off-site) and reused in the coating operation for which the Permittee uses the emission rate without add-on controls option. If the Permittee uses coatings, thinners and/or other additives, or cleaning materials that have been reclaimed on-site, the amount of each used in a month may be reduced by the amount of each that is reclaimed. That is, the amount used may be calculated as the amount consumed to account for materials that are reclaimed. 40 CFR Section (cont.) 40 CFR Section (cont.) (a) Determine the mass fraction of organic HAP for each material. Determine the mass fraction of organic HAP for each coating, thinner and/or other additive, and cleaning material used during each month according to the requirements in section (a). (b) Determine the volume fraction of coating solids. Determine the volume fraction of coating solids (liter (gal) of coating solids per liter (gal) of coating) for each coating used during each month according to the requirements in section (b). (c) Determine the density of each material. Determine the density of each liquid coating, thinner and/or other additive, and cleaning material used during each month from test results using ASTM Method D , "Standard Test Method for Density of Liquid Coatings, Inks, and Related Products" (incorporated by reference, see Section 63.14), information from the supplier or manufacturer of the material, or reference sources providing density or specific gravity data for pure materials. If the Permittee is including powder coatings in the compliance determination, determine the density of powder coatings, using ASTM Method D , "Standard Test Methods for Specific Gravity of Coating Powders" (incorporated by reference, see Section 63.14), or information from the supplier. If there is disagreement between ASTM Method D or ASTM Method D test results and other such information sources, the test results will take precedence unless, after consultation the Permittee demonstrates to the satisfaction of the enforcement agency that the formulation data are correct. If the Permittee purchases materials or monitor consumption by weight instead of volume, the Permittee does not need to determine material density. Instead, the Permittee may use the material weight in place of the combined terms for density and volume in Equations 1A, 1B, 1C, and 2 in the appendix of this permit. (d) Determine the volume of each material used. Determine the volume (liters) of each coating, thinner and/or other additive, and cleaning material used during each month by measurement or usage records. If the Permittee purchases materials or monitor consumption by weight instead of volume, the Permittee does not need to determine the volume of each material used. Instead, the Permittee may use the material weight in place of the combined terms for density and volume in Equations 1A, 1B, and 1C in the appendix of this permit. (e) Calculate the mass of organic HAP emissions. The mass of organic HAP emissions is the combined mass of organic HAP contained in all coatings, thinners and/or other additives, and cleaning materials used during each month minus the organic HAP in certain waste materials. Calculate the mass of organic HAP emissions using Equation 1 in the appendix of this permit. 40 CFR Section (cont.) 40 CFR Section (cont.) 40 CFR Section (cont.) 40 CFR Section (cont.) (1) Calculate the kg organic HAP in the coatings used during the month using Equation 1A in the appendix of this permit. (2) Calculate the kg of organic HAP in the thinners and/or other additives used during the month using Equation 1B in the appendix of this permit. (3) Calculate the kg organic HAP in the cleaning materials used during the month using Equation 1C in the appendix of this permit. (4) If the Permittee chooses to account for the mass of organic HAP contained in waste materials sent or designated for shipment to a hazardous waste TSDF in Equation 1 in the appendix of this permt, then the Permittee must determine the mass according to paragraphs (e)(4)(i) through (iv) of this section. 40 CFR Section (cont.) (i) The Permittee may only include waste materials in the determination that are generated by coating operations in the affected source for which the Permittee uses Equation 1 in the appendix of this permit and that will be treated or disposed of by a facility that is regulated as a TSDF under 40 CFR part 262, 264, 265, or 266. The TSDF may be either off-site or on-site. The Permittee may not include organic HAP contained in wastewater.