Attachment_J_-_Operational_Permit_Redacted.pdf

Table of Contents

Page

1.0 Standard Conditions 1

1.1 Operation of source 1

1.2 Duty to comply 1

1.3 Property rights or exclusive privileges 2

1.4 Penalty for violating a permit condition 2

1.5 Inspection and entry 2

1.6 Severability 2

1.7 Permit termination, modification, or revocation 2

2.0 Permit Amendments and Modifications 2

2.1 Permit flexibility 2

2.2 Administrative permit amendment 3

2.3 Minor permit amendment 3

2.4 Permit modification 4

2.5 Permit revision 4

2.6 Testing new fuels or raw materials 5

3.0 Permit Renewal 5

3.1 Permit effective 5

3.2 Permit renewal 5

3.3 Permit expiration 6

4.0 Recordkeeping and Reporting 6

4.1 Recordkeeping and reporting 6

4.2 Signatory requirements 6

4.3 Certification statement 7

4.4 Reporting permit violations 7

5.0 Control of Regulated Air Pollutants 8

5.1 Visibility limit 8

5.2 Visibility exceedances 8

5.3 Total suspended particulate matter limits 8

5.4 Sulfur dioxide limits 8

5.5 Circumvention not allowed 9

5.6 Minimizing emissions 9

6.0 Title V Air Quality Operating Permit Exemption 9

6.1 Title V air quality operating permit exemption 9

6.2 Operational restriction for Units #1-#3 9

6.3 Record of engine/generator hours of operation 9

7.0 Performance Tests 10

Table of Contents

Page

7.1 Performance test may be required 10

7.2 Test methods and procedures 10

7.3 Representative performance test 10

7.4 Submittal of test plan 10

7.5 Notification of test 10

7.6 Performance test report 11

8.0 NSPS Subpart IIII 11

8.1 Nonemergency generator emission limits for Unit #4 11

8.2 Fuel requirements for nonemergency generator 11

8.3 Compliance with nonemergency generator emission limits 11

8.4 Operating requirements for nonemergency generator 12

8.5 Alternative requirements for nonemergency generator 12

8.6 Performance test requirements for nonemergency generator 12

8.7 Alternative performance test requirements for nonemergency engines 13

8.8 Nonemergency engines equipped with a diesel particulate filter 13

8.9 Diesel particulate filter records 14

9.0 MACT Requirements – Units #1, #2, #3 14

9.1 Date to comply with nonemergency emission limits 14

9.2 Emission limit for nonemergency engine 14

9.3 Operating limits for nonemergency engines 14

9.4 Fuel requirements for nonemergency engines 15

9.5 General requirements for nonemergency engines 15

9.6 Initial compliance demonstration for nonemergency engines 15

9.7 Initial performance test for nonemergency engines may not be required 17

9.8 Subsequent performance test schedule for nonemergency engines 17

9.9 Performance test procedures for nonemergency engines 17

9.10 Requirements for a continuous emission monitoring system 21

9.11 Requirements for a continuous parameter monitoring system 22

9.12 Installation of open or closed crankcase system 24

9.13 Minimizing engine time during startup 25

9.14 Monitoring and collecting data 25

9.15 Demonstrating continuous compliance 25

9.16 Reporting deviations 26

9.17 Performance test notifications 26

9.18 Notification of compliance status 27

9.19 Semiannual compliance report 27

9.20 Recordkeeping for nonemergency engines 29

9.21 Circumvention not allowed 30

10.0 Recommendation 31

1.0 Standard Conditions

1.1 Operation of source

In accordance with Administrative Rules of South Dakota (ARSD) 74:36:04:15(9), the owner or operator shall operate the units, controls, and processes as described in Table 1-1 in accordance with the statements, representations, and supporting data contained in the complete permit application received March 05, 2019, unless modified by the conditions of this permit. Except as otherwise provided herein, the control equipment shall be operated at all times in accordance with the manufacturer’s specification and in a manner that achieves compliance with the conditions of this permit. The application consists of the application forms, supporting data, and supplementary correspondence. If the owner or operator becomes aware it failed to submit any relevant facts in a permit application or submitted incorrect information in an application, such information shall be promptly submitted.

Table 1-1 – Description of Permitted Units, Operations, and Processes Maximum Control

Unit Description Operating Rate Device

#1 Non-emergency Generator –2005, Cummins, model #DFGE, compression ignition, fired with distillate oil.

750 kilowatts (1006 horsepower) Oxidation

Catalyst

#2 Non-emergency Generator –2005, Cummins, model #DFGE, compression ignition, fired with distillate oil.

750 kilowatts (1006 horsepower) Oxidation

Catalyst

#3 Non-emergency Generator –2005, Cummins, model #DFGE, compression ignition, fired with distillate oil.

750 kilowatts (1006 horsepower) Oxidation

Catalyst

#4 Non-emergency Generator –2017, Cummins model #DQFAH ,compression ignition, fired with distillate oil.

1111 kilowatts (1490 horsepower)

Oxidation Catalyst

1.2 Duty to comply

In accordance with ARSD 74:36:04:15(12), the owner or operator shall comply with the conditions of this permit. An owner or operator who knowingly makes a false statement in any record or report or who falsifies, tampers with, or renders inaccurate, any monitoring device or method is in violation of this permit. A violation of any condition in this permit is grounds for enforcement, reopening this permit, permit termination, or denial of a permit renewal application. The owner or operator, in an enforcement action, cannot use the defense that it would have been necessary to cease or reduce the permitted activity to maintain compliance.

The owner or operator shall provide any information requested by the Secretary to determine compliance or whether cause exists for reopening or terminating this permit. This permit does not waive compliance with federal, state, or local laws and ordinances.

1.3 Property rights or exclusive privileges

In accordance with ARSD 74:36:04:15(12), the State’s issuance of this permit, adoption of design criteria, and approval of plans and specifications does not convey any property rights of any sort, any exclusive privileges, any authorization to damage, injure or use any private property, any authority to invade personal rights, any authority to violate federal, state or local laws or regulations, or any taking, condemnation or use of eminent domain against any property owned by third parties. The State does not warrant the owner’s or operator’s compliance with this permit, design criteria, approved plans and specifications, and operation under this permit, will not cause damage, injury or use of private property, an invasion of personal rights, or violation of federal, state or local laws or regulations. The owner or operator is solely and severally liable for all damage, injury or use of private property, invasion of personal rights, infringement of federal, state or local laws and regulations, or taking or condemnation of property owned by third parties, which may result from actions taken under the permit.

1.4 Penalty for violating a permit condition

In accordance with South Dakota Codified Laws (SDCL) 34A-1-39 and 34A-1-47, a violation of a permit condition may subject the owner or operator to civil or criminal prosecution, a state penalty of not more than $10,000 per day per violation, injunctive action, administrative permit action, and other remedies as provided by law.

1.5 Inspection and entry

In accordance with SDCL 34A-1-41, the owner or operator shall allow the Secretary, upon presentation of credentials, to:

1. Enter the premises where a regulated activity is located or where pertinent records are stored;

2. Have access to and copy any records required under this permit;

3. Inspect operations regulated under this permit; and/or

4. Sample or monitor any substances or parameters for the purpose of assuring compliance.

1.6 Severability

In accordance with ARSD 74:36:04:15(11), any portion of this permit that is void or challenged shall not affect the validity of the remaining permit requirements.

1.7 Permit termination, modification, or revocation

In accordance with ARSD 74:36:04:27, the Secretary may recommend that the Board of Minerals and Environment terminate, modify, or revoke this permit for violations of SDCL 34A1 or the federal Clean Air Act or for nonpayment of any outstanding enforcement penalty.

2.0 Permit Amendments and Modifications

2.1 Permit flexibility

In accordance with ARSD 74:36:04:18, the owner or operator shall have the flexibility to make changes to the source during the term of this permit. The owner or operator shall provide the

Secretary written notice at least seven days in advance of the proposed change (NOTE: The Secretary will forward a copy of the written notice to EPA). The written notice shall include a brief description of the change, the date on which the change is to occur, any change in emissions, the proposed changes to the permit, and whether the requested revisions are for an administrative permit amendment, minor permit amendment, or permit modification.

The Secretary will notify the owner or operator whether the change is an administrative permit amendment, a minor permit amendment, or a permit modification. A proposed change that is considered an administrative permit amendment or a minor permit amendment can be completed immediately after the Secretary receives the written notification. The owner or operator must comply with both the applicable requirements governing the change and the proposed permit terms and conditions until the Secretary takes final action on the proposed change.

A proposed change that is considered a modification cannot be implemented until the Secretary takes final action on the proposed change or the owner or operator was issued an air quality construction permit. Permit modifications are subject to the same procedural requirements, including public comment, as the original permit issuance except that the required review shall cover only the proposed changes.

2.2 Administrative permit amendment

In accordance with ARSD 74:36:04:20, the Secretary has 15 days from receipt of a written notice to verify the proposed change is an administrative permit amendment. As provided in ARSD 74:36:01:03, the Secretary considers a proposed change an administrative permit amendment if the proposed change accomplishes one of the following:

1. Corrects typographical errors;

2. Changes the name, address, or phone number of any person identified in this permit or provides a similar minor administrative change;

3. Requires more frequent monitoring or reporting;

4. The ownership or operational control changes and the Secretary determines no other change in this permit is necessary. However, the new owner must submit a certification of applicant form and a written statement specifying the date for transfer of operating permit responsibility, coverage, and liability; or

5. Any other changes the Secretary and the administrator of EPA determines to be similar to those requirements in this condition.

2.3 Minor permit amendment

In accordance with ARSD 74:36:04:20.04, the Secretary has 90 days from receipt of a written notice to take final action on a minor permit amendment. Final action consists of issuing or denying a minor permit amendment or determining the proposed change is a permit modification. As provided in ASRD 74:36:04:20:02, the Secretary considers a proposed change to be a minor permit amendment if the proposed change:

1. Does not violate any applicable requirements;

2. Does not involve significant changes to existing monitoring, reporting, or recordkeeping requirements;

3. Does not require or change a casebycase determination of an emission limit or other standard, a sourcespecific determination for temporary sources of ambient impacts, or a visibility or increment analysis; or

4. Does not seek to establish or change a permit term or condition for which the source has assumed to avoid an applicable requirement, a federally enforceable emission cap, or an alternative emission limit. An alternative emission limit is approved pursuant to regulations promulgated under section 112(i)(5) of the federal Clean Air Act.

2.4 Permit modification

In accordance with ARSD 74:36:04:21, an owner or operator may apply for a permit modification. A permit modification is defined in ARSD 74:36:01:10 as a physical change in or change in the operation of a source that results in at least one of the following:

1. An increase in the amount of an air pollutant emitted by the source or results in the emission of an air pollutant not previously emitted;

2. A significant change to existing monitoring, reporting, or recordkeeping requirements in the permit;

3. The change requires or changes a case-by-case determination of an emission limit or other standard, a source-specific determination for temporary sources of ambient impacts, or a visibility or increment analysis; or

4. The change seeks to establish or change a permit term or condition for which there is a corresponding underlying applicable requirement that the source has assumed to avoid an applicable requirement, a federally enforceable emissions cap assumed to avoid classification as a modification under a provision of the Title I of the Clean Air Act, or an alternative emissions limit approved pursuant to regulations promulgated under section 112(i)(5) of the Clean Air Act.

Permit modifications are subject to the same procedural requirements, including public comment, as the original permit issuance except the required review shall cover only the proposed changes.

2.5 Permit revision

In accordance with ARSD 74:36:04:23, the Secretary may reopen and revise this permit to meet requirements of SDCL 34A-1 or the federal Clean Air Act. In accordance with ARSD 74:36:04:24, the Secretary shall notify the owner or operator at least 30 days before reopening this permit. The 30-day period may be less in the case of an emergency.

2.6 Testing new fuels or raw materials

In accordance with ARSD 74:36:11:04, an owner or operator may request permission to test a new fuel or raw material to determine if it is compatible with existing equipment before requesting a permit amendment or modification. A complete test proposal shall consist of the following:

1. A written proposal describing the new fuel or raw material, operating parameters, and parameters that will be monitored and any testing associated with air pollutant emissions during the test;

2. An estimate of the type and amount of regulated air pollutant emissions resulting from the proposed change; and

3. The proposed schedule for conducting the test. In most cases the owner or operator will be allowed to test for a maximum of one week. A request for a test period longer than one week will need additional justification. A test period shall not exceed 180 days.

The Secretary shall approve, conditionally approve, or deny in writing the test proposal within 45 days after receiving a complete proposal. Approval conditions may include changing the test schedule or pollutant sampling and analysis methods. Pollutant sampling and analysis methods may include, but are not limited to performance testing, visible emission evaluation, fuel analysis, dispersion modeling, and monitoring of raw material or fuel rates.

If the Secretary determines the proposed change will result in an increase in the emission of a regulated air pollutant or result in the emission of an additional regulated air pollutant, the Secretary shall give public notice of the proposed test for 30 days. The Secretary shall consider all comments received during the 30-day public comment period before making a final decision on the test.

The Secretary will not approve a test if the test would cause or contribute to a violation of a national ambient air quality standard.

3.0 Permit Renewal

3.1 Permit effective

In accordance with ARSD 74:36:04:05, this permit shall expire five years from date of issuance unless reopened or terminated for cause. The current permit shall not expire and shall remain in effect until the Secretary takes final action on the renewal application.

3.2 Permit renewal

In accordance with ARSD 74:36:04:06, the owner or operator shall submit an application for a permit renewal at least 90 days before the date of permit expiration if the owner or operator wishes to continue to operate an activity regulated by this permit. The current permit shall not expire and shall remain in effect until the Secretary takes final action on the timely permit renewal application.

3.3 Permit expiration

In accordance with ARSD 74:36:04:16, permit expiration terminates the owner’s or operator’s right to operate any unit covered by this permit.

4.0 Recordkeeping and Reporting

4.1 Recordkeeping and reporting

In accordance with ARSD 74:36:04:15(10), the owner or operator shall maintain all monitoring data, records, reports, and pertinent information specified by this permit for five years from the date of sample, measurement, report, or application unless otherwise specified in this permit.

The records shall be maintained on site for the first two years and may be maintained off site for the last three years. All records must be made available to the Secretary for inspection. All notifications and reports shall be submitted to the Secretary using one of the following two notification methods:

Notification Method 1 – Mailing Address

South Dakota Department of Environment and Natural Resources PMB 2020, Air Quality Program 523 E. Capitol, Joe Foss Building Pierre, SD 57501-3182

Or

Notification Method 2 – Email Address

AirQualityReporting@state.sd.us

Each notification and report shall contain the information required in this permit, the signature of the responsible official or duly authorized representative as outlined in permit condition 4.2 and the certification statement in permit condition 4.3. If the owner or operator chooses to submit the notification and reports via email, the email must contain an acrobat copy (PDF) of the notification or report. The acrobat copy must contain the required information, signature, and certification statement. If a notification or report is required to be notarized, the notification or report may not be submitted by email.

4.2 Signatory requirements

In accordance with ARSD 74:36:04:07, all applications, reports or other information submitted to the Secretary shall be signed and certified by a responsible official or a duly authorized representative. A responsible official for a corporation is a responsible corporate officer and for a partnership or sole proprietorship is a general partner or the proprietor, respectively. A person is a duly authorized representative only if:

1. The authorization is made in writing by a person described above and submitted to the Secretary; and

2. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility, such as the position of plant manager, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters.

The duly authorized representative must be designated prior to or together with any reports or information to be signed by a duly authorized representative. The responsible official shall notify the Secretary if an authorization is no longer accurate.

4.3 Certification statement

In accordance with ARSD 74:36:04:15(10), all documents required by this permit, including application forms, reports, and compliance certification, must be certified by a responsible official or a duly authorized representative. The certification shall include the following statement:

“I certify that, based on information and belief formed after reasonable inquiry, the statements and information in this document and all attachments are true, accurate, and complete.”

4.4 Reporting permit violations

In accordance with ARSD 74:36:04:15(10), the owner or operator shall report all permit violations. A permit violation should be reported as soon as possible, but no later than the first business day following the day the violation was discovered. The permit violation may be reported by telephone to the South Dakota Department of Environment and Natural Resources at

(605) 7733151 or by FAX at (605) 7734068.

A written report shall be submitted within five days of discovering the permit violation. Upon prior approval from the Secretary, the submittal deadline for the written report may be extended up to 30 days. The written report shall contain:

1. A description of the permit violation and its cause(s);

2. The duration of the permit violation, including exact dates and times; and

3. The steps taken or planned to reduce, eliminate, and prevent reoccurrence of the permit violation.

The Secretary may waive the written report on a case-by-case basis if the oral report has been received within the reporting period and dependent upon the severity of the permit violation.

5.0 Control of Regulated Air Pollutants

5.1 Visibility limit

In accordance with ARSD 74:36:12:01, the owner or operator may not discharge into the ambient air an air contaminant of a density equal to or greater than that designated as 20 percent opacity from any permitted unit, operation, or process listed in Table 1-1, unless otherwise specified in this permit. This provision does not apply when the presence of uncombined water is the only reason for failure to meet the requirement.

5.2 Visibility exceedances

In accordance with ARSD 74:36:12:02, an exceedance of the opacity limit in permit condition

5.1 is not considered a violation during brief periods of soot blowing, start-up, shutdown, or malfunctions. Malfunction means any sudden and unavoidable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner. A failure caused entirely or in part by poor maintenance, careless operation, preventable equipment breakdown, or any other cause within the control of the owner or operator is not a malfunction and is considered a violation.

5.3 Total suspended particulate matter limits

In accordance with ARSD 74:36:06:02(1) and/or ARSD 74:36:06:03(1) , the owner or operator shall not allow the emission of total suspended particulate matter in excess of the emission limit specified in Table 5-1 for the appropriate permitted unit, operation, and process.

Table 5-1 – Total Suspended Particulate Matter Emission Limit Unit Description Emission Limit #1 Non-emergency generator 0.6 pounds per million Btu heat input #2 Non-emergency generator 0.6 pounds per million Btu heat input #3 Non-emergency generator 0.6 pounds per million Btu heat input

5.4 Sulfur dioxide limits

In accordance with ARSD 74:36:06:02(2) and/or ARSD 74:36:06:03(2), the owner or operator shall not allow the emission of sulfur dioxide in excess of the emission limit specified in Table 5- 2 for the appropriate permitted unit, operations, and process.

Table 5-2 – Sulfur Dioxide Emission Limit Unit Description Emission Limit #1 Non-emergency generator 3.0 pounds per million Btu heat input #2 Non-emergency generator 3.0 pounds per million Btu heat input #3 Non-emergency generator 3.0 pounds per million Btu heat input

Compliance with the sulfur dioxide emission limit is based on a three-hour rolling average, which is the arithmetic average of three contiguous one-hour periods.

5.5 Circumvention not allowed

In accordance with ARSD 74:36:04:31, the owner or operator may not install, use a device, or use a means that conceals or dilutes an air emission that would otherwise violate this permit.

This includes operating a unit or control device that emits air pollutants from an opening other than the designed stack, vent, or equivalent opening.

5.6 Minimizing emissions

In accordance with ARSD 74:36:08:03, as referenced to 40 CFR § 63.6(e)(1)(i), the owner or operator shall at all times, including periods of startup, shutdown, and malfunction, operate and maintain any permitted unit, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. During a period of startup, shutdown, or malfunction, this general duty to minimize emissions requires the owner or operator to reduce emissions from the permitted unit to the greatest extent which is consistent with safety and good air pollution control practices. The general duty to minimize emissions during a period of startup, shutdown, or malfunction does not require the owner or operator to achieve emission levels that would be required by the applicable standard at other times if this is not consistent with safety and good air pollution control practices, nor does it require the owner or operator to make any further efforts to reduce emissions if levels required by the applicable standard have been achieved. Determination of whether such operation and maintenance procedures are being used will be based on information available to the Secretary which may include, but is not limited to, monitoring results, review of operation and maintenance procedures (including a startup, shutdown, and malfunction plan, if required), review of operation and maintenance records, and inspection of the operation.

6.0 Title V Air Quality Operating Permit Exemption

6.1 Title V air quality operating permit exemption

In accordance with ARSD 74:36:04:15(9), the owner or operator is exempt from needing a Title V air quality operating permit. Any relaxation or exceedance of a permit condition that increases air emission greater than 95 tons per 12-month period is considered a modification and may require a Title V air quality operating permit.

6.2 Operational restriction for Units #1-#3

In accordance with ARSD 74:36:04:15(9), the owner or operator shall not allow Unit #1, Unit #2, Unit #3 or Unit #4 to operate for more than 1,480 hours during any 12-month period.

Compliance with the operational limit shall be determined by a 12-month rolling total.

6.3 Record of engine/generator hours of operation

In accordance with ARSD 74:36:04:15(10), the owner or operator shall record the number of hours Unit #1, Unit #2, Unit #3 and Unit #4 is operated each month. The hours shall be recorded from the run timers on Units #1, #2, #3 and #4. A 12-month rolling total shall be calculated every month using that month’s value and the previous 11 months’ values.

7.0 Performance Tests

7.1 Performance test may be required

In accordance with ARSD 74:36:11:02, the Secretary may request a performance test during the term of this permit. A performance test shall be conducted while operating the unit at or greater than 90 percent of its maximum design capacity, unless otherwise specified by the Secretary. A performance test conducted while operating less than 90 percent of its maximum design capacity will result in the operation being limited to the percent achieved during the performance test.

The Secretary has the discretion to extend the deadline for completion of performance test required by the Secretary if circumstances reasonably warrant but will not extend the deadline past a federally required performance test deadline.

7.2 Test methods and procedures

In accordance with ARSD 74:36:11:01, the owner or operator shall conduct the performance test in accordance with 40 CFR Part 60, Appendix A, 40 CFR Part 63, Appendix A, and 40 CFR Part 51, Appendix M. The Secretary may approve an alternative method if a performance test specified in 40 CFR Part 60, Appendix A, 40 CFR Part 63, Appendix A, and 40 CFR Part 51, Appendix M is not federally applicable or federally required.

7.3 Representative performance test

In accordance with ARSD 74:36:07:01, as referenced to 40 CFR § 60.8(c), performance tests shall be conducted under such conditions as the Secretary shall specify to the owner or operator based on the representative performance of the unit being tested. The owner or operator shall make available to the Secretary such records as may be necessary to determine the conditions of the performance tests. Operations during periods of startup, shutdown, and malfunction shall not constitute representative conditions for the purpose of a performance test nor shall emissions in excess of the level of the applicable emission limit during periods of startup, shutdown, and malfunction be considered a violation of the applicable emission limit unless otherwise specified in this permit.

7.4 Submittal of test plan

In accordance with ARSD 74:36:11:01, the owner or operator shall submit the proposed testing procedures to the Secretary at least 30 days prior to any performance test. The Secretary will notify the owner or operator if the proposed test procedures are approved or denied. If the proposed test procedures are denied, the Secretary will provide written notification outlining what needs to be completed for approval.

7.5 Notification of test

In accordance with ARSD 74:36:11:03, the owner or operator shall notify the Secretary at least 10 days prior to the start of a performance test to arrange for an agreeable test date when the Secretary may observe the test. The Secretary may extend the deadline for the performance test in order to accommodate schedules in arranging an agreeable test date.

7.6 Performance test report

In accordance with ARSD 74:36:04:15(10), the owner or operator shall submit a performance test report to the Secretary within 60 days after completing the performance test or by a date designated by the Secretary. The performance test report shall contain the following information:

1. A brief description of the process and the air pollution control system being tested;

2. Sampling location description(s);

3. A description of sampling and analytical procedures and any modifications to standard procedures;

4. Test results represented in the same terminology as the permit limits;

5. Quality assurance procedures and results;

6. Records of operating conditions during the test necessary for demonstrating compliance with the permit limits, preparation of standards, and calibration procedures;

7. Raw data sheets for field sampling and field and laboratory analyses;

8. Documentation of calculations;

9. All data recorded and used to establish parameters for compliance monitoring; and

10. Any other information required by the test method.

8.0 NSPS Subpart IIII

8.1 Nonemergency generator emission limits for Unit #4

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR §§ 60.4204(b), 60.4206 the owner or operator shall operate and maintain the nonemergency generator that achieves the emission limits in Table 8-1 over the entire life of the nonemergency generator.

Table 8-1 –Nonemergency Emission Limits for Generators (grams per kilowatt-hour) Nonmethane Hydrocarbon Nitrogen Oxide Carbon Monoxide Particulate Matter

0.19 3.5 3.5 0.04

8.2 Fuel requirements for nonemergency generator

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4207(b), the owner or operator shall only combust diesel fuel in the nonemergency generator that meets the following per gallon standards:

1. Maximum sulfur content of 15 parts per million; and

2. Minimum cetane index of 40; or

3. Maximum aromatic content of 35 volume percent.

8.3 Compliance with nonemergency generator emission limits

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4211(c), the owner or operator shall demonstrate compliance with the emission limits in permit condition 8.1 by the following methods, except as specified in permit condition 8.5:

1. Purchase a nonemergency generator certified to the emission standards in permit condition 8.1; and

2. Install and configure the nonemergency generator according to the manufacturer’s emission-related specifications.

8.4 Operating requirements for nonemergency generator

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4211(a), the owner or operator shall comply with the following, except as specified in permit condition 8.5:

1. Operate and maintain the nonemergency generator according to the manufacturer's emission-related written instructions;

2. Change only those emission-related settings that are permitted by the manufacturer; and

3. Meet the applicable requirements in 40 CFR Part 89, 94, and/or 1068.

8.5 Alternative requirements for nonemergency generator

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4211(g)(3), if the owner or operator does not install, configure, operate, and maintain the nonemergency generator according to the manufacturer’s emission-related written instructions or changes the emission-related settings in a way that is not permitted by the manufacturer, the owner or operator must demonstrate compliance as follows:

1. Maintain a maintenance plan and records of conducted maintenance;

2. To the extent practicable, maintain and operate the generator in a manner consistent with good air pollution control practice for minimizing emissions; and

3. Conduct an initial performance test to demonstrate compliance with the emission limits in permit condition 8.1 within 1 year of startup, within 1 year after the nonemergency generator is no longer installed, configured, operated, and maintained in accordance with the manufacturer's emission-related written instructions, or within 1 year after the owner or operator changes emission-related settings in a way that is not permitted by the manufacturer.

4. Subsequent performance test must be conducted every 8760 hours or 3 years, whichever comes first, to demonstrate compliance with applicable emission standards

8.6 Performance test requirements for nonemergency generator

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4212(a) and (c), if the owner or operator conducts a performance test to demonstrate compliance with permit condition 8.1, the following procedures shall be followed, except as provided in permit condition 8.7:

1. The performance test must be conducted according to the in-use testing procedures in 40 CFR Part 1039, Subpart F; and

2. Exhaust emissions from the nonemergency generator must not exceed the “NTE” numerical requirements, rounded to the same number of decimal places as the applicable emission limit in permit condition 8.1 and determined by Equation 8-1.

In accordance 1039.102(g)(1) NTE is calculated with the following equation.

Equation 8-1 – NTE formula

Where:

NTE = Numerical requirement for each pollutant identified in Table 8-1; and STD = Emission limit for each pollutant identified in Table 8-1

8.7 Alternative performance test requirements for nonemergency engines In accordance with ARSD 74:36:07:88, as referenced to 40 CFR §§ 60.4212(c) and 60.4213, the owner or operator may use the following performance test procedures to demonstrate compliance with permit condition 8.1:

1. The performance test shall be conducted according to the requirements in 40 CFR § 60.8 and under the specific conditions in Table 7 of 40 CFR Part 60, Subpart IIII. The test shall be conducted within 10 percent of 100 percent peak (or the highest achievable) load;

2. The owner or operator shall not conduct the performance test during periods of startup, shutdown, or malfunction;

3. The owner or operator shall conduct three separate test runs for each performance test and each test run shall last at least 1 hour; and

4. To determine compliance with the particulate matter mass per unit output emission limit, convert the concentration of particulate matter in the nonemergency engine exhaust using Equation 8.2.

Equation 8.2 – Particulate matter conversion

Where:

ER = Emission rate, in grams per KW-hour;

Cadj = Calculated particulate matter concentration, in grams per standard cubic meter;

Q = Stack gas volumetric flow rate, in standard cubic meter per hour;

T = Time of test run, in hours; and KW-hour = Energy output of engine, in kilowatts.

8.8 Nonemergency engines equipped with a diesel particulate filter In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4209(b), if the owner or operator equips the nonemergency engine with a diesel particulate filter to comply with the emission limits in Table 8.1, the diesel particulate filter shall be installed with a backpressure monitor that notifies the owner or operator when the high backpressure limit of the engine is approached.

8.9 Diesel particulate filter records

In accordance with ARSD 74:36:07:88, as referenced to 40 CFR § 60.4214(c), if the owner or operator equips the nonemergency engine with a diesel particulate filter to comply with the emission limits in Table 8.1, the owner or operator shall maintain records of any corrective action taken after the backpressure monitor has notified the owner or operator that the high pressure limit of the nonemergency engine is approached.

9.0 MACT Requirements – Units #1, #2, #3

9.1 Date to comply with nonemergency emission limits

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR § 63.6595(a)(1), the owner or operator shall comply with the applicable emission standards and operating limitations specified in this chapter on and after May 3, 2013.

9.2 Emission limit for nonemergency engine

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR §§ 63.6603(a) and 63.6625(h), except during periods of startup, the owner or operator shall limit concentrations of carbon monoxide emission from the nonemergency engine to less than or equal to 23 parts per million by volume on a dry basis at 15 percent oxygen or reduce carbon monoxide emissions from the nonemergency engine by 70 percent or more. Compliance with the numerical emission limit is based on the results of testing the average of three 1-hour runs using the testing requirements and procedures in permit condition 9.9.

9.3 Operating limits for nonemergency engines

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR §§ 63.6603(a) and 63.6630(b), the owner or operator shall comply with the emission limit in permit condition 9.2 by one of the following methods:

1. If the owner or operator uses a oxidation catalyst, the owner or operator shall:

a. Maintain the catalyst so the pressure drop across the catalyst does not change by more than 2 inches of water from the pressure drop across the catalyst measured during the initial performance test; and

b. Maintain the temperature of the exhaust gases so the catalyst inlet temperature is greater than or equal to 450 degrees Fahrenheit and less than or equal to 1,350 degrees Fahrenheit.

2. If the owner or operator complies without using an oxidation catalyst, the owner or operator shall comply with operating limits approved by the Secretary.

9.4 Fuel requirements for nonemergency engines

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR § 63.6604(a), the owner or operator shall only combust diesel fuel in the nonemergency engine that meets the following per gallon standards:

4. Maximum sulfur content of 15 parts per million; and

5. Minimum cetane index of 40; or

6. Maximum aromatic content of 35 volume percent.

9.5 General requirements for nonemergency engines

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR § 63.6605, the owner or operator shall be in compliance with permit condition 9.2 and 9.3 at all times. The owner or operator at all times shall operate and maintain the nonemergency engine, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. The general duty to minimize emissions does not require the owner or operator to make any further efforts to reduce emissions if levels required in permit condition 9.2 and 9.3 have been achieved. Determination of whether such operation and maintenance procedures are being used will be based on available information which may include, but is not limited to, monitoring results, review of operation and maintenance procedures, review of operation and maintenance records, and inspection of the nonemergency engine.

9.6 Initial compliance demonstration for nonemergency engines In accordance with ARSD 74:36:08:40, as referenced to 40 CFR §§ 63.6612(a) and 63.6630(a), the owner or operator shall conduct an initial compliance demonstration within 180 days after May 3, 2013, according to one of the following applicable methods:

1. If the owner or operator reduces carbon monoxide emissions using an oxidation catalyst and continuous parameter monitoring system, initial compliance is demonstrated by conducting an initial performance test using the applicable procedures described in permit condition 9.9 and if:

a. The average reduction of carbon monoxide emissions determined from the initial performance test achieves the required carbon monoxide percent reduction in permit condition 9.2;

b. The owner or operator installed a continuous parameter monitoring system to continuously monitor catalyst inlet temperature according to permit condition 9.11;

and

c. The owner or operator recorded the catalyst pressure drop and inlet temperature during the initial performance test.

2. If the owner or operator limits the concentration of carbon monoxide emissions using an oxidation catalyst and continuous parameter monitoring system, initial compliance is demonstrated by conducting an initial performance test using the applicable procedures described in permit condition 9.9 and if:

a. The average carbon monoxide concentration determined from the initial performance test is less than or equal to the carbon monoxide emission limit in permit condition 9.2;

b. The owner or operator installed a continuous parameter monitoring system to continuously monitor catalyst inlet temperature according to permit condition 9.11;

and

c. The owner or operator recorded the catalyst pressure drop and inlet temperature during the initial performance test.

3. If the owner or operator reduces carbon monoxide emissions and does not use an oxidation catalyst, initial compliance is demonstrated by conducting an initial performance test using the applicable procedures described in permit condition 9.9 and if:

a. The average reduction of carbon monoxide emissions determined from the initial performance test achieves the required carbon monoxide percent reduction in permit condition 9.2;

b. The owner or operator installed a continuous parameter monitoring system to continuously monitor operating parameters approved by the Secretary, if any, according to permit condition 9.11; and

c. The owner or operator recorded the approved operating parameters, if any, during the initial performance test.

4. If the owner or operator limits the concentration of carbon monoxide emissions and does not use an oxidation catalyst, initial compliance is demonstrated by conducting an initial performance test using the applicable procedures described in permit condition 9.9 and if:

a. The average carbon monoxide concentration determined from the initial performance test is less than or equal to the carbon monoxide emission limit in permit condition 9.2;

b. The owner or operator installed a continuous parameter monitoring system to continuously monitor operating parameters approved by the Secretary, if any, according to permit condition 9.11; and

c. The owner or operator recorded the approved operating parameters, if any, during the initial performance test.

5. If the owner or operator reduces carbon monoxide emissions using an oxidation catalyst and continuous emission monitoring system, initial compliance is demonstrated if:

a. The owner or operator installed the continuous emission monitoring system to continuously monitor carbon monoxide and either oxygen or carbon dioxide emissions at both the inlet and outlet of the oxidation catalyst according to permit condition 9.10;

b. The owner or operator conducted a performance evaluation of the continuous emission monitoring system using 40 CFR Part 60, Appendix B, Performance Specification 3 and 4A; and

c. The average reduction of carbon monoxide as calculated using permit condition 9.9 equals or exceeds the required percent reduction in permit condition 9.2. The initial performance test comprises the first 4-hour period after successful validation of the continuous emission monitoring system. Compliance is based on the average percent reduction achieved during the 4-hour period.

6. If the owner or operator limits the concentration of carbon monoxide emissions using a oxidation catalyst and continuous emission monitoring system, initial compliance is demonstrated if:

a. The owner or operator installed a continuous emission monitoring system to continuously monitor carbon monoxide and either oxygen or carbon dioxide emissions at the outlet of the oxidation catalyst according to permit condition 9.10;

b. The owner or operator conducted a performance evaluation of the continuous emission monitoring system using 40 CFR Part 60, Appendix B, Performance Specification 3 and 4A; and

c. The average concentration of carbon monoxide as calculated using permit condition

9.9 is less than or equal to the carbon monoxide emission limit in permit condition

9.2. The initial performance test comprises the first 4-hour period after successful validation of the continuous emission monitoring system. Compliance is based on the average concentration measured during the 4-hour period.

9.7 Initial performance test for nonemergency engines may not be required In accordance with ARSD 74:36:08:40, as referenced to 40 CFR §§ 63.6612(b) and 63.6670(c)(5), the owner or operator is not required to conduct the initial performance testing on a nonemergency engine for which a performance test was previously conducted provided the test meets all of the following requirements:

1. The test shall have been conducted using the same methods specified in this chapter and the methods were followed correctly;

2. The test shall not be older than 2 years;

3. The test shall be reviewed and accepted by the Administrator of EPA through the

Secretary; and

4. Either no process or equipment changes shall have been made since the test was performed or the owner or operator shall be able to demonstrate the results of the performance test, with or without the adjustments, reliably demonstrates compliance despite process or equipment changes.

9.8 Subsequent performance test schedule for nonemergency engines In accordance with ARSD 74:36:08:40, as referenced to 40 CFR § 63.6615, if a continuous emission monitoring system is not being used, the owner or operator shall conduct subsequent performance tests every 8,760 hours or 3 years, whichever comes first.

9.9 Performance test procedures for nonemergency engines

In accordance with ARSD 74:36:08:40, as referenced to 40 CFR §§ 63.7(e)(3) and 63.6620, the owner or operator shall conduct each performance test according to the following:

1. If the owner or operator reduces carbon monoxide emissions, the owner or operator shall:

a. Measure the oxygen at the inlet and outlet of the control device with a portable oxygen analyzer using ASTM Method D6522-00 (2005) or 40 CFR Part 60, Appendix A, Methods 3, 3A, or 3B. Oxygen measurements shall be made at the same time as the measurements for carbon monoxide concentrations; and

b. Measure the carbon monoxide at the inlet and outlet of the control device with a portable carbon monoxide analyzer using ASTM D6522-00 (2005), ASTM D6348- 03, 40 CFR Part 60, Appendix A, Methods 10, or 40 CFR Part 63, Appendix A, Method 320. The carbon monoxide concentrations shall be at 15 percent oxygen, dry basis.

2. If the owner or operator limits the concentration of carbon monoxide emissions, the owner or operator shall:

a. Select the sampling port locations and the number of traverse points using 40 CFR

Part 60, Appendix A, Method 1 or 1A. If using a control device, the sampling site shall be located at the outlet of the control device;

b. Determine the oxygen concentration at the sampling port location using 40 CFR Part 60, Appendix A, Method 3, 3A, or 3B or ASTM Method D6522-00 (2005). Oxygen concentration measurements shall be made at the same time and location as the measurements for carbon monoxide concentrations;

c. Measure the moisture content at the sampling port location using 40 CFR Part 60, Appendix A, Method 4, 40 CFR Part 63, Appendix A, Method 320, or ASTM D6348-

03. Moisture content measurements shall be made at the same time and location as the measurements for carbon monoxide concentrations; and

d. Measure the carbon monoxide concentrations at the sampling port for the exhaust of the nonemergency engine using 40 CFR Part 60, Appendix A, Method 10, 40 CFR Part 63, Appendix A, Method 320, ASTM D6522-00 (2005), or ASTM D6348-03.

The carbon monoxide concentration shall be at 15 percent oxygen, dry basis.

3. The owner or operator shall conduct three separate test runs for each performance test and each test run shall last at least 1 hour. Upon receiving approval from the Secretary, results of a test run may be replaced with the results of an additional test run in the event that:

a. A sample is accidentally lost after the testing team leaves the site;

b. Conditions occur in which one of the three runs shall be discontinued because of forced shutdown;

c. Extreme meteorological conditions occur; or

d. Other circumstances occur that are beyond the control of the owner or operator.

4. Equation 8-1 shall be used to determine compliance with the percent reduction requirement;

Equation 9-1 – Demonstrating compliance with percent reduction

Where:

Ci = Concentration of carbon monoxide at the control device inlet;

Co = Concentration of carbon monoxide at the control device outlet; and R = Percent reduction of carbon monoxide emissions.

5. The owner or operator shall normalize the carbon monoxide concentrations at the inlet and outlet of the control device to a dry basis and to 15 percent oxygen or an equivalent percent of carbon dioxide. If pollutant concentrations are corrected to 15 percent oxygen and carbon dioxide concentrations is measured in lieu of oxygen concentration measurement, a carbon dioxide correction factor is needed. The carbon dioxide correction factor shall be calculated as follows:

a. Calculate the fuel-specific Fo value for the fuel burned during the test using values obtained from 40 CFR Part 60, Appendix A, Method 19, section 15.2 and…