Intent to Issue Air Emission Permit to Heron Lake ...

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TDD (for hearing and speech impaired only): (651) 2825332 Printed on recycled paper containing at least 10% fibers from paper recycled by consumers DRAFT/PROPOSED AIR EMISSION PERMIT NO. 06300025005 Major Amendment IS ISSUED TO Heron Lake BioEnergy, LLC HERON LAKE BIOENERGY, LLC 91246 390th Avenue Heron Lake, Jackson County, Minnesota 56137 The emission units, control equipment and emission stacks at the stationary source authorized in this permit amendment are as described in the Permit Applications Table. This permit amendment supersedes Air Emission Permit No. 06300025004, and authorizes the Permittee to operate and modify 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. 7007.1150 to 7007.1500. Terms used in the permit are as defined in the state air pollution control rules unless the term is explicitly defined in the permit. Unless otherwise indicated, all the Minnesota rules cited as the origin of the permit terms are incorporated into the SIP under 40 CFR § 52.1220 and as such as are enforceable by U.S. Environmental Protection Agency (EPA) Administrator or citizens under the Clean Air Act. Permit Type: Federal; Pt. 70/Limits to Avoid New Source Review & New Source Review Authorization Operating Permit Issue Date: December 16, 2010 Major Amendment Issue Date: <issue date> Expiration Date: December 16, 2015 – Title I Conditions do not expire. DRAFT/PROPOSED Don Smith, P.E., Manager Air Quality Permits Section Industrial Division for John Linc Stine Commissioner Minnesota Pollution Control Agency

Transcript of Intent to Issue Air Emission Permit to Heron Lake ...

Page 1: Intent to Issue Air Emission Permit to Heron Lake ...

TDD (for hearing and speech impaired only):  (651) 282‐5332 Printed on recycled paper containing at least 10% fibers from paper recycled by consumers 

DRAFT/PROPOSED      

AIR EMISSION PERMIT NO. 06300025‐005 Major Amendment  

 IS ISSUED TO 

 Heron Lake BioEnergy, LLC 

 HERON LAKE BIOENERGY, LLC 

91246 390th Avenue Heron Lake, Jackson County, Minnesota  56137     

 The emission units, control equipment and emission stacks at the stationary source authorized in this permit amendment are as described in the Permit Applications Table.  This permit amendment supersedes Air Emission Permit No. 06300025‐004, and authorizes the Permittee to operate and modify 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. 7007.1150 to 7007.1500. Terms used in the permit are as defined in the state air pollution control rules unless the term is explicitly defined in the permit.  Unless otherwise indicated, all the Minnesota rules cited as the origin of the permit terms are incorporated into the SIP under 40 CFR § 52.1220 and as such as are enforceable by U.S. Environmental Protection Agency (EPA) Administrator or citizens under the Clean Air Act.  Permit Type: Federal; Pt. 70/Limits to Avoid New Source Review & New Source Review Authorization Operating Permit Issue Date: December 16, 2010 Major Amendment Issue Date: <issue date> Expiration Date: December 16, 2015 – Title I Conditions do not expire.       DRAFT/PROPOSED     Don Smith, P.E., Manager     Air Quality Permits Section     Industrial Division        for   John Linc Stine     Commissioner     Minnesota Pollution Control Agency  

  

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 Permit Applications Table 

Permit Type  Application Date  Permit Action 

Total Facility Operating Permit August 31, 2007, December 21, 2008 (supplemented September 28, 2009 and September 2010) 

004 

Major Amendment January 9, 2014 (supplemented September 4, 2014 and <>) 

005 

  

TABLE OF CONTENTS    

Notice to the Permittee  Permit Shield  Facility Description  Amendment Description  Table A: Limits and Other Requirements  Table B: Submittals  Appendices: I.  Modeling Data (Modeling Parameters, Road Segments, and Fence Diagram)  

II.  Not Used In This Permit III.  Insignificant Activities IV.  Dust Control Plan V.  HAP Species Testing VI.   Diesel Idling Emission Prevention Plan VII.  Stack Test Methods and Parameter Recording Requirements VIII.   Equipment Inventory 

  

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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  651‐296‐6300        Outside Metro Area  1‐800‐657‐3864        TTY  (651‐282‐5332  The rules governing these programs are contained in Minn. R. chs. 7000‐7105. Written questions may be sent to: Minnesota Pollution Control Agency, 520 Lafayette Road North, St. Paul, Minnesota 55155‐4194.  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. 7007.1800, 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. 7007.1800 and 7017.0100, 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.   

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FACILITY DESCRIPTION: 

Heron Lake BioEnergy is a dry mill ethanol production facility. The facility is permitted to produce 72.25 million gallons (formerly 59.9 millions gallons) of undenatured (200‐proof) fuel‐grade ethanol annually. Pollutants emitted by the facility are volatile organic compounds (VOC), particulate matter (PM), particulate matter smaller than 10 microns (PM10), particulate matter smaller than 2.5 microns (PM2.5), nitrogen oxides (NOX), sulfur dioxide (SO2), carbon monoxide (CO),  hazardous air pollutants (HAP), and greenhouse gases (GHG; primarily CO2).  

Facility emission sources are primarily grain receiving, handling, and milling; fermentation and distillation; DDGS production, storage, and handling; natural gas and propane combustion; product and denaturant storage and loadout; and equipment leaks (valves, flanges, etc.). 

The facility employs a Regenerative Thermal Oxidizer (RTO) to control VOC and HAP emissions from DDGS drying and other processes.  A wet scrubber controls VOC and HAP emissions from the fermentation process.  The facility employs several baghouses to control particulate matter emissions.  The (formerly coal) natural gas/liquefied petroleum gas (LPG)‐burning boiler provides process steam. The large product storage tanks are equipped with internal floating roofs to control VOC and HAP emissions from evaporative losses.  The ethanol loadout rack for trucks is equipped with a flare to control VOCs.  Emissions from equipment leaks are controlled through an inspection and maintenance program. 

  AMENDMENT DESCRIPTION:  

This permit action authorizes an increase in the permitted annual 200‐proof ethanol production limit from 59.9 million gallons per year to 72.25 million gallons per year (12‐month rolling sum), revises future modeling requirements, authorizes equipment flexibility for various facility processes, increases various emission limits to accommodate the ethanol production increase, and (amongst other minor changes) revises the permit to reflect cessation of coal and use of natural gas as boiler fuel.  

 

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

06300025 - 005

Facility Name:

Permit Number:

05/05/15A-1

Table A contains limits and other requirements with which your facility must comply. The limits are located in the first column ofthe table (What To do). The limits can be emission limits or operational limits. This column also contains the actions that you musttake 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 facilityrequirements.

Subject Item: Total Facility

What to do Why to do it

SOURCE-SPECIFIC REQUIREMENTS hdr

Permit Appendices: This permit contains appendices as listed in the permit Table ofContents. The Permittee shall comply with all requirements contained in AppendixIV (Dust Control Plan), Appendix V (HAP species testing), Appendix VI (DieselIdling Emission Prevention Plan), and Appendix VII (Stack Test Methods andParameter Recording Requirements).

Changes to the parameters documented in Appendix I (Modeling Data) aregoverened by the permit conditions under PARAMETERS USED IN MODELING -PM10, PM2.5, SO2, NOx, and CO in the Total Facility subject item of this permit.

Changes to the insignificant activities listed in Appendix III (Insignificant Activities)are governed by Minn. Rs. 7007.1250 and 7007.1300.

The Permittee shall use Appendix VIII (Equipment Inventory) to document allpre-authorized equipment changes as allowed under subject items SV 001, SV002, SV 003, and SV 008.

Minn. R. 7007.0800, subp. 2

OPERATIONAL REQUIREMENTS hdr

Production: less than or equal to 72.25 million gallons/year using 12-month RollingSum of ethanol (200 proof prior to addition of denaturant).

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21(b) and Minn. R.7007.3000; Title I Condition: To avoid major sourcethreshold under 40 CFR Section 63.2 and Minn. R.7011.7000

Fence: The Permittee shall maintain a fence to restrict public access to the facilityas shown in Appendix I Figure 2, Fence Diagram.

In areas where fencing is not permissible by setbacks, right-of-ways, safetyconcerns, or clearances, the Permittee will install signs and conduct patrols toprevent public access to the property.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

The Permittee shall comply with National Primary and Secondary Ambient AirQuality Standards, 40 CFR pt. 50, and the Minnesota Ambient Air QualityStandards, Minn. R. 7009.0010 to 7009.0080. Compliance shall be demonstratedupon written request by the MPCA.

Minn. Stat. Section 116.07, subds. 4a & 9; Minn. R.7007.0100, subp. 7(A), 7(L), & 7(M); Minn. R.7007.0800, subps. 1, 2 & 4; Minn. R.7009.0010-7009.0080

Clean up commodities spilled on the driveway and other facility property asrequired to minimize fugitive emissions; maintain air pollution control equipment inproper operating condition and utilize the air pollution control system as designed.

Minn. R. 7011.1005, subp. 1

Circumvention: Do not install or use a device or means that conceals or dilutesemissions, which would otherwise violate a federal or state air pollution control rule,without reducing the total amount of pollutant emitted.

Minn. R. 7011.0020

Air Pollution Control Equipment: Operate all pollution control equipment wheneverthe corresponding process equipment and emission units are operated.

Minn. R. 7007.0800, subps. 14 and 16(J)

Operation and Maintenance Plan: Retain at the stationary source an operation andmaintenance plan for all air pollution control equipment. At a minimum, the O & Mplan shall identify all air pollution control equipment and control practices and shallinclude a preventative maintenance program for the equipment and practices, adescription of (the minimum but not necessarily the only) corrective actions to betaken to restore the equipment and practices to proper operation to meet applicablepermit conditions, a description of the employee training program for properoperation and maintenance of the control equipment and practices, and the recordskept to demonstrate plan implementation.

Minn. R. 7007.0800, subps. 2 and 14

Operation Changes: In any shutdown, breakdown, or deviation the Permittee shallimmediately take all practical steps to modify operations to reduce the emission ofany regulated air pollutant. The Commissioner may require feasible and practicalmodifications in the operation to reduce emissions of air pollutants. No emissionsunits that have an unreasonable shutdown or breakdown frequency of process orcontrol equipment shall be permitted to operate.

Minn. R. 7019.1000, subp. 4

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

06300025 - 005

Facility Name:

Permit Number:

05/05/15A-2

Fugitive Emissions: Do not cause or permit the handling, use, transporting, orstorage of any material in a manner which may allow avoidable amounts ofparticulate matter to become airborne. Comply with all other requirements listed inMinn. R. 7011.0150.

Minn. R. 7011.0150

Noise: The Permittee shall comply with the noise standards set forth in Minn. R.7030.0010 to 7030.0080 at all times during the operation of any emission units.This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7030.0010 - 7030.0080

Inspections: The Permittee shall comply with the inspection procedures andrequirements as found in Minn. R. 7007.0800, subp. 9(A).

Minn. R. 7007.0800, subp. 9(A)

The Permittee shall comply with the General Conditions listed in Minn. R.7007.0800, subp. 16.

Minn. R. 7007.0800, subp. 16

Diesel Idling Emission Prevention Plan: The Permittee shall implement the DieselIdling Emission Prevention Plan (Appendix V) to minimize idling of motor vehiclediesel engines at the facility. The Permittee shall maintain a readily available copyof the Plan at the facility.

Minn. R. ch. 7009; Minn. R. 7011.0150; Minn. R.7007.0800, subp. 2

Grain received by the Heron Lake BioEnergy, LLC facility (ID No. 063000025) shallonly be used for ethanol, wet cake, and distiller�s dried grains (DDGS) productionby the Permittee at the Heron Lake BioEnergy, LLC facility.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Alternative Feedstock Operating Scenario: The Permittee may utilize liquidmolasses and off-specification liquid sugar as alternative fermenation feedstocks,as well as grain as defined by 40 CFR Section 60.301 in the fermentation process.The Permittee may blend up to a maximum of 30 percent by weight of alternativeliquid feedstock with grain.

Daily records of the alternative liquid feedstock usage rate for each liquidalternative feedstock must be maintained at the facility. Alternative feedstockrecords shall identify the type of liquid feedstock, date of usage, the quantity ingallons per day, and the percentage of the liquid feedstock on a percent by weightbasis compared to the total mass of all fermentation feedstock.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Outdoor handling and storage of dry whole grain and DDGS is prohibited.

Corn and/or any other grain received shall be unloaded only in the grain receivingbuilding and stored in the grain silos (EU 005 and EU 006).

Corn and/or other grains may not be unloaded and stockpiled or stored outdoors onthe ground or any other surface or in any other area of the facility except thedesignated storage silos.

This limitation does not apply to wet cake.

Minn. R. 7007.0800, subp. 2Minn. R. ch. 7009

FLEXIBILE PERMIT CONDITIONS hdr

Changes/Modifications That May Trigger New Source Review and/or Part 63 MajorSource Status Prohibited:

This permit contains limits and requirements to keep the facility a minor sourceunder New Source Review and the National Emission Standards for Hazardous AirPollutants (NESHAP) program. The Permittee cannot make any change to thesource that qualify as a Title I modification (as defined at Minn. R. 7007.0100,subp. 26), or that would make the source a major source under New SourceReview or the NESHAP program until a permit amendment has been issued. Thisincludes changes that might otherwise qualify as insignificant modifications, or thatcould otherwise be permitted as minor or moderate amendments.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Changes/Modifications That May Affect Modeled Parameters or Processes SubjectTo Limits Based On 40 CFR Section 52.21(k) and Minn. R. 7007.3000:

Except as allowed by this permit, the Permittee can not make any changes toprocess equipment subject to requirements based on 40 CFR Section 52.21(k)without obtaining the appropriate amendment required under Minn. R. ch. 7007.This includes changes that might otherwise qualify as insignificant modifications, orthat could otherwise be permitted as minor or moderate amendments.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7007.0800, subp. 2

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

06300025 - 005

Facility Name:

Permit Number:

05/05/15A-3

Equipment Inventory: The Permittee shall maintain a written inventory of allemission units and control equipment that vent through SV 001, SV 002, SV 003,and SV 008. The Permittee shall update the inventory to include any new, modified,or replaced equipment prior to making any permitted changes described in subjectitems SV 001, SV 002, SV 003, and SV 008 of this permit.

The Permittee shall use the tables in Appendix VII to maintain the inventory.Appropriate data shall be entered for all data fields in Appendix VII emission unittables A and B.

Removed equipment shall be shown in the table(s) with equipment data struck-out.Modified equipment shall be shown in the table(s) with current equipment data,and past equipment data struck-out.

Minn. R. 7007.0800, subp. 2

Equipment Labeling: The Permittee shall permanently affix a unique number toeach emission unit for tracking purposes. The numbers shall correlate the unit tothe appropriate EU, SV, CE, and GP numbers used in this permit. The number canbe affixed by placard, stencil, or other means. The number shall be maintained sothat it is readable and visible at all times from a safe distance. If equipment isadded, it shall be given a new unique number; numbers from replaced or removedequipment shall not be reused.

Minn. R. 7007.0800, subp. 2

PARAMETERS USED IN MODELING hdr

Modeled Parameters: The parameters used in PM10, PM2.5, NO2, SO2, and COmodeling for permit number 06300025-005 are listed in Appendix I of this permit.The parameters describe the operation of the facility at maximum permittedcapacity. The parameters in Appendix I provide a benchmark for future changes tomodeled pollutant parameters.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Changes to Modeled Parameters for PM10, PM2.5, NO2, and/or CO: Any permitamendment that affects any modeled parameter or emission rate for PM10, PM2.5,NO2, and/or CO listed in Appendix I must be a major amendment. Any addition tothe information documented in Appendix I requires a major amendment.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Equivalent or Better Dispersion (EBD) Modeling Triggers (Modeling Required) forPM2.5 and NO2: Changes that affect any modeled parameter or emission ratelisted in Appendix I, or an addition to the information documented in Appendix I,trigger the EBD Modeling Submittal requirement.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

EBD Modeling Submittal for PM2.5 and NO2: For changes meeting the criteria inthe EBD Modeling Triggers (Modeling Required) requirement, the Permittee shallsubmit an EBD modeling submittal in accordance with the current version of theMPCA Air Dispersion Modeling Guidance and shall wait for written approval (in theform of an issued permit amendment) before making such changes.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

EBD Modeling Submittal Content for PM2.5 and NO2: The information submittedmust include, for stack and vent sources, source emission rate, location, height,diameters, exit velocity, exit temperature, discharge direction, use of rain caps orrain hats, and, if applicable, locations and dimensions of nearby buildings. Fornon-stack/vent sources, this includes the source emission rate, location, size andshape, release height, and, if applicable, any emission rate scalars, and the initiallateral dimensions and initial vertical dimensions and adjacent building heights.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Outdated EBD Baseline Modeling for PM2.5 and NO2: Prior to conducting the EBDanalysis, the Permittee shall use the current version of the MPCA Air DispersionModeling Guidance to determine if the Baseline Modeling (the most recent refinedmodeling demonstration) is outdated. If the Baseline Modeling is outdated, thePermittee shall update the Baseline Modeling to be consistent with the currentversion of the MPCA Air Dispersion Modeling Guidance. The updated modeling willbecome the new Baseline Modeling.

This requirement does not require the Permittee to complete a new refinedmodeling demonstration using the revisions made for the EBD demonstration.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

EBD Modeling Results for PM2.5 and NO2: The dispersion characteristics due tothe revisions of the information in Appendix I must be equivalent to or better thanthe dispersion characteristics modeled August 2013 for permit No. 06300025-005.The Permittee shall demonstrate this equivalency in the proposal.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Computer Dispersion Modeling Triggers for PM2.5 and NO2: The Permittee shallconduct a refined remodeling analysis in accordance with the Computer DispersionModeling requirements of this permit and the current version of the MPCA AirDispersion Modeling Guidance if: (1) the results of the EBD modeling analysis donot demonstrate equivalent or better dispersion characteristics; (2) a conclusioncannot readily be made about the dispersion, or (3) the criteria in the EBDModeling Triggers requirement are met and the Permittee has previouslyconducted three successive EBD analyses using the same Baseline Modeling.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

06300025 - 005

Facility Name:

Permit Number:

05/05/15A-4

Computer Dispersion Modeling Protocol: due 180 days after receipt of writtenMPCA request for PM2.5 and NO2 refined modeling. The Permittee shall submit aComputer Dispersion Modeling Protocol that is complete and approvable by MPCAby the deadline in this requirement. This protocol will describe the proposedmodeling methodology and input data, in accordance with the current version of theMPCA Air Dispersion Modeling Guidance. The protocol must be based onprojected operating conditions under the next permit term.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Computer Dispersion Modeling Protocol Revisions: due 60 days after receipt ofwritten MPCA request for revisions to the submitted protocol for PM2.5 and NO2modeling.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Computer Dispersion Modeling Results: due 180 days after receipt of writtenMPCA approval of Computer Dispersion Modeling Protocol for PM2.5 and NO2.The Permittee shall submit a final Computer Dispersion Modeling Report that iscomplete and approvable by MPCA by the deadline in this requirement. Thesubmittal shall adhere to the current version of the MPCA Air Dispersion ModelingGuidance and the approved Computer Dispersion Modeling Protocol.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

PERFORMANCE TESTING hdr

Performance Testing: Conduct all performance tests in accordance with Minn. R.ch. 7017 and Appendix VII unless otherwise noted in Tables A or B. The Permitteeshall monitor and record all relevant Appendix VII process operating parametersand control equipment operating parameters during stack testing.

Minn. R. ch. 7017

Performance Test Notifications and Submittals:

Performance Tests are due as outlined in Table A of the permit.See Table B for additional testing requirements.

Performance Test Notification (written): due 30 days before each Performance TestPerformance Test Plan: due 30 days before each Performance TestPerformance Test Pre-test Meeting: due 7 days before each Performance TestPerformance Test Report: due 45 days after each Performance TestPerformance Test Report - Microfiche Copy: due 105 days after each PerformanceTest

The Notification, Test Plan, and Test Report may be submitted in alternative formatas allowed by Minn. R. 7017.2018.

Minn. R. 7017.2018; Minn. R. 7017.2030, subps. 1-4,Minn. R. 7017.2035, subps. 1-2

The Permittee may meet the test report submittal requirements of Minn. R.7017.2018 and Minn. R. 7017.2035, subps. 1 and 2 by any of the following:

1. submittal of an emailed pdf copy of the test report;

2. posting of an electronic file on a third party web site and an email notifying suchto the MPCA stack test coordinator; or,

3. hand or mail delivery of a compact disc that contains a copy of the test report.

There are additional requirements for the above-described test report submittalmethods. Please contact your MPCA stack test coordinator for additionalinformation regarding these submittal procedures and requirements.

Minn. R. 7007.0800, subp. 2

Limits set as a result of a performance test (conducted before or after permitissuance) apply until superseded as stated in the MPCA's Notice of Complianceletter granting preliminary approval. Preliminary approval is based on formal reviewof a subsequent performance test on the same unit as specified by Minn. R.7017.2025, subp. 3. The limit is final upon issuance of a permit amendmentincorporating the change.

Minn. R. 7017.2025, subp. 3

The Permittee shall conduct all tests according to the methods specified inAppendix VII and record all process and control equipment operating parametersidentified in Appendix VII during all tests.

Minn. R. 7017.2035, subp. 3

MONITORING REQUIREMENTS hdr

Monitoring Equipment Calibration - The Permittee shall either:

1. Calibrate or replace required monitoring equipment every 12 months; or2. Calibrate at the frequency stated in the manufacturer's specifications.

For each monitor, the Permittee shall maintain a record of all calibrations, includingthe date conducted, and any corrective action taken. The Permittee shall includethe calibration frequencies, procedures, and manufacturer's specifications (ifapplicable) in the Operations and Maintenance Plan. Any requirements applying tocontinuous emission monitors are listed separately in this permit.

Minn. R. 7007.0800, subp. 4(D)

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

06300025 - 005

Facility Name:

Permit Number:

05/05/15A-5

Operation of Monitoring Equipment: Unless otherwise noted in Tables A or B,monitoring a process or control equipment connected to that process is notnecessary during periods when the process is shutdown, or during checks of themonitoring systems, such as calibration checks and zero and span adjustments. Ifmonitoring records are required, they should reflect any such periods of processshutdown or checks of the monitoring system.

Minn. R. 7007.0800, subp. 4(D)

RECORDKEEPING hdr

Recordkeeping: Once each day record the ethanol production (in gallons) for theprevious calendar day.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 and Minn. R. 7011.7000

By the 15th day of each month calculate and record ethanol production for theprevious month and the previous 12-month period.

Minn. R. 7007.0800, subps. 4 & 5

Recordkeeping: Retain all records at the stationary source, unless otherwisespecified within this permit, for a period of five (5) years from the date ofmonitoring, sample, measurement, or report. Records which must be retained atthis location include all calibration and maintenance records, all original recordingsfor continuous monitoring instrumentation, and copies of all reports required by thepermit. Records must conform to the requirements listed in Minn. R. 7007.0800,subp. 5(A).

Minn. R. 7007.0800, subp. 5(C)

Recordkeeping: Maintain records describing any insignificant modifications (asrequired by Minn. R. 7007.1250, subp. 3) or changes contravening permit terms (asrequired by Minn. R. 7007.1350, subp. 2), including records of the emissionsresulting from those changes.

Minn. R. 7007.0800, subp. 5(B)

If the Permittee determines that no permit amendment or notification is requiredprior to making a change, the Permittee must retain records of all calculationsrequired under Minn. R. 7007.1200. For expiring permits, these records shall bekept for a period of five years from the date the change was made or until permitreissuance, whichever is longer. The records shall be kept at the stationary sourcefor the current calendar year of operation and may be kept at the stationary sourceor office of the stationary source for all other years. The records may be maintainedin either electronic or paper format.

Minn. R. 7007.1200, subp. 4

REPORTING/SUBMITTALS hdr

Shutdown Notifications: Notify the Commissioner at least 24 hours in advance of aplanned shutdown of any control equipment or process equipment if the shutdownwould cause any increase in the emissions of any regulated air pollutant. If theowner or operator does not have advance knowledge of the shutdown, notificationshall 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. 7019.1000, subp. 3.

At the time of notification, the owner or operator shall inform the Commissioner ofthe cause of the shutdown and the estimated duration. The owner or operator shallnotify the Commissioner when the shutdown is over.

Minn. R. 7019.1000, subp. 3

Breakdown Notifications: Notify the Commissioner within 24 hours of a breakdownof more than one hour duration of any control equipment or process equipment ifthe breakdown causes any increase in the emissions of any regulated air pollutant.The 24-hour time period starts when the breakdown was discovered or reasonablyshould have been discovered by the owner or operator. However, notification is notrequired in the circumstances outlined in Items A, B, and C of Minn. R. 7019.1000,subp. 2.

At the time of notification or as soon as possible thereafter, the owner or operatorshall inform the Commissioner of the cause of the breakdown and the estimatedduration. The owner or operator shall notify the Commissioner when the breakdownis over.

Minn. R. 7019.1000, subp. 2

Notification of Deviations Endangering Human Health or the Environment: As soonas possible after discovery, notify the Commissioner or the state duty officer, eitherorally or by facsimile, of any deviation from permit conditions which could endangerhuman health or the environment.

Minn. R. 7019.1000, subp. 1

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Facility Name:

Permit Number:

05/05/15A-6

Notification of Deviations Endangering Human Health or the Environment Report:Within 2 working days of discovery, notify the Commissioner in writing of anydeviation from permit conditions which could endanger human health or theenvironment. 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 corrected3. whether or not the deviation has been corrected;4. the anticipated time by which the deviation is expected to be corrected, if not yetcorrected; and5. steps taken or planned to reduce, eliminate, and prevent reoccurrence of thedeviation.

Minn. R. 7019.1000, subp. 1

Application for Permit Amendment: If a permit amendment is needed, submit anapplication in accordance with the requirements of Minn. R. 7007.1150 throughMinn. R. 7007.1500. Submittal dates vary, depending on the type of amendmentneeded.

Minn. R. 7007.1150 - Minn. R. 7007.1500

Extension Requests: The Permittee may apply for an Administrative Amendment toextend a deadline in a permit by no more than 120 days, provided the proposeddeadline extension meets the requirements of Minn. R. 7007.1400, subp. 1(H).Performance testing deadlines from the General Provisions of 40 CFR pt. 60 andpt. 63 are examples of deadlines for which the MPCA does not have authority togrant extensions and therefore do not meet the requirements of Minn. R.7007.1400, subp. 1(H).

Minn. R. 7007.1400, subp. 1(H)

Emission Inventory Report: due on or before April 1 of each calendar year followingpermit issuance. The Permittee shall submit the report on a form approved by theCommissioner.

Minn. R. 7019.3000 - Minn. R. 7019.3100

Emission Fees: due 30 days after receipt of an MPCA bill. Minn. R. 7002.0005 - Minn. R. 7002.0095

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Facility Name:

Permit Number:

05/05/15A-7

Subject Item: GP 001 Grain Receiving, Handling, & Storage; DDGS Handling & Loadout

Associated Items: CE 001 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 009 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

EU 001 Truck Receiving 1 - Loading-Unloading Equipment

EU 002 Truck Receiving 2 - Loading-Unloading Equipment

EU 003 Grain Elevator 1 - Elevator

EU 004 Conveyor

EU 005 Grain Bin 1 - Silo/Bin

EU 006 Grain Bin 2 - Silo/Bin

EU 007 Grain Day Bin (scalping bin) - Silo/Bin

EU 008 Grain Elevator 2 - Elevator

EU 009 Grain Day Bin (grinding bin) - Silo/Bin

EU 010 Hammermill Feed Conveyors - Conveyor

EU 038 Truck Load Spout (DDGS) - Loading-Unloading Equipment

EU 039 DDGS Dump Pit/Auger - Material Handling Equipment

EU 052 DDGS storage silo - Silo/Bin

EU 055 DDGS storage silo 2 - Silo/Bin

FS 002 Uncaptured Grain Handling Emissions - Material Handling/Transfer/Storage

FS 003 Uncaptured DDGS Handling Emissions - Material Handling/Transfer/Storage

What to do Why to do it

EMISSION AND OPERATING LIMITS hdr

The Permittee shall operate and maintain EU 001, EU 002, and EU 038 (TruckReceiving Pits 1 & 2, and DDGS Loadout Spout, respectively) so that eachachieves a capture efficiency for Total Particulate Matter: greater than or equal to95.0 percent capture efficiency

Minn. R. 7007.0800, subps. 2 & 14

The Permittee shall operate and maintain EU 001, EU 002, and EU 038 (TruckReceiving Pits 1 & 2, and DDGS Loadout Spout, respectively) so that eachachieves a capture efficiency for PM < 10 micron: greater than or equal to 95.0percent capture efficiency

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7007.0800, subps. 2 & 14

The Permittee shall operate and maintain EU 001, EU 002, and EU 038 (TruckReceiving Pits 1 & 2, and DDGS Loadout Spout, respectively) so that eachachieves a capture efficiency for PM < 2.5 micron: greater than or equal to 95.0percent capture efficiency

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7007.0800, subps. 2 & 14

Opacity: less than or equal to 5 percent opacity for uncaptured (also referred to as'fugitive') emissions from any truck unloading station, railcar unloading station,railcar loading station, or handling operation.

Minn. R. 7011.1005, subp. 3(A)

Opacity: less than or equal to 10 percent opacity for uncaptured (also referred to as'fugitive') emissions from any truck loading station.

Minn. R. 7011.1005, subp. 3(B)

The Permittee shall maintain air pollution control equipment in proper operatingcondition and utilize the air pollution control systems as designed.

Minn. R. 7011.1005, subp. 1(B)

Loading And Unloading Operating Hours: Grain unloading and DDGS loadingoperations are restricted to the hours between 6 AM and 6 PM daily.

Maintain loading and unloading operating hours records as required under subjectitem SV 001.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7007.0800, subps. 4 & 5

Daily Grain Receiving Limit: On any calendar day, no more than 5000 tons of grainmay be received by truck (total of hopper and straight truck deliveries).

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Straight Truck Daily Grain Receiving Limit: On any calendar day, no more than1000 tons of grain may be received by straight truck delivery.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Vent all captured grain receiving and handling emissions to baghouse CE 001.Vent all captured DDGS handling and loadout emissions to baghouse CE 009.Refer to subject items CE 001 and CE 009 for baghouse operation andmaintenance requirements.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-8

Daily Grain Receiving Monitoring and Recordkeeping: The Permittee shall monitorand record the tonnage of each grain delivery. Records shall specify delivery date,delivered tonnage, and delivery truck type (straight or hopper) for each delivery.Daily totals for straight truck deliveries as well as for all deliveries (straight truckand hopper truck combined) shall be calculated and recorded for each operatingday.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7007.0800, subps. 4 & 5

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Facility Name:

Permit Number:

05/05/15A-9

Subject Item: GP 004 Fermentation Units Vented to Scrubber (SV 003/CE 003)

Associated Items: CE 003 Packed-Gas Adsorption Column

EU 013 Fermenter 1; 730,000 gallons - Fermentation Equipment

EU 014 Fermenter 2; 730,000 gallons - Fermentation Equipment

EU 015 Fermenter 3; 730,000 gallons - Fermentation Equipment

EU 016 Fermenter 4; 730,000 gallons - Fermentation Equipment

EU 017 Beerwell; 985,000 gallons - Fermentation Equipment

EU 058 Fermenter 5; 730,000 gallons - Fermentation Equipment

EU 059 Fermenter 6; 730,000 gallons - Fermentation Equipment

What to do Why to do it

POLLUTION CONTROL REQUIREMENTS hdr

Vent all emissions from emission units in the GP 004 list of Associated Items listedabove to the CE 003 fermentation scrubber.

Refer to Subject Item CE 003 for operation, monitoring, and maintenancerequirements for the fermentation scrubber. Refer to SV 003 for additionalapplicable requirements.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

All existing, new, replaced, and modified fermentation equipment at the facility shallbe vented to CE 003 at all times that any of the equipment is operating.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR pt. 63 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-10

Subject Item: GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

Associated Items: CE 005 Thermal Oxidizer - Regenerative

CE 028 Direct Flame Afterburner

EU 018 DDGS Dryer A (CE 006 & CE 005/SV 004 or CE 006 & CE 028/SV 005) - Dehydrator

EU 019 Mixer (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 020 Slurry Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 021 Cook Tube (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 022 Flash Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 023 Liquefaction Tank 1 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 024 Liquefaction Tank 2 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 025 Yeast Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 026 Beer Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 027 Side Stripper (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 028 Rectifier Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 029 190 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 030 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 031 200 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 032 Centrifuges (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 033 Evaporators (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 034 DDGS Dryer B (CE 007 & CE 005/SV 004 or CE 007 & CE 028/SV 005) - Dehydrator

EU 035 NG-Fired Boiler (Direct Flame Afterburner CE 028) - Boiler

SV 004 Regenerative Thermal Oxidizer (CE 005)

SV 005 NG-Fired Boiler (CE 028)

What to do Why to do it

POLLUTION CONTROL REQUIREMENTS hdr

Vent all emissions from emission units in the list of GP 005 Associated Items aboveto the regenerative thermal oxidizer (CE 005) or the boiler/direct flame afterburner(CE 028/EU 035).

See CE 005 and CE 028 for operation, monitoring, and maintenance requirements.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-11

Subject Item: GP 006 Tanks

Associated Items: TK 001 190 Proof Ethanol, 165,000 gallons

TK 002 200 Proof Ethanol, 165,000 gallons

TK 003 Denaturant, 165,000 gallons

TK 004 Denatured Ethanol, 1,200,000 gallons

TK 005 Denatured Ethanol, 1,200,000 gallons

What to do Why to do it

POLLUTION CONTROL REQUIREMENTS hdr

The storage vessels shall be equipped with a fixed roof in combination with aninternal floating roof meeting the requirements of 40 CFR Section 60.112b(a)(1).

40 CFR Section 60.112b(a);Minn. R. 7011.1520(C)

Internal Floating Roof Seal Requirement: Each internal roof shall be equipped withone of the closure devices between the wall of the storage vessel and the edge ofthe internal floating roof as described in 40 CFR Section 60.112b(a)(1)(ii).

40 CFR Section 60.112b(a)(1)(ii);Minn. R. 7011.1520(C)

MONITORING REQUIREMENTS hdr

After installing the control equipment required to meet 40 CFR Section60.112b(a)(1) (permanently affixed roof and internal floating roof), the Permitteeshall visually inspect the internal floating roof, the primary seal, and the secondaryseal (if one is in service), prior to filling the storage vessel with volatile organicliquid. If there are holes, tears, or other openings in the primary seal, the secondaryseal, or the seal fabric or defects in the internal floating roof, or both, the Permitteeshall repair the items before filling the storage vessel.

40 CFR Section 60.113b(a)(1);Minn. R. 7011.1520(C)

Inspection - Annual: Visually inspect the internal floating roof, the primary seal, andthe secondary seal (if one is in service) through manholes and roof hatches on thefixed roof at least once every twelve (12) months after initial fill as required by 40CFR Section 60.113b(a)(2).

40 CFR Section 60.113b(a)(2) & (4);Minn. R. 7011.1520(C)

Inspection - Tank Empty and Degassed: Visually inspect the internal floating roof,the primary seal, and the secondary seal (if one is in service), gaskets, slottedmembranes and sleeve seals (if any) each time the tank is emptied and degassedas required by 40 CFR Section 60.113b(a)(4). In no event shall inspectionsconducted in accordance with this provision occur at intervals greater than 10years.

40 CFR Section 60.113b(a)(4);Minn. R. 7011.1520(C)

RECORDKEEPING REQUIREMENTS hdr

Keep a record of each inspection performed as required by 40 CFR Section60.113b(a). Each record shall identify the storage vessel on which the inspectionwas performed and shall contain the date the vessel was inspected and theobserved condition of each component of the control equipment (seals, internalfloating roof, and fittings).

40 CFR Section 60.115b(a)(2);Minn. R. 7011.1520(C)

Recordkeeping: Maintain records showing the dimensions of each tank and ananalysis showing tank capacity.

40 CFR Section 60.116b(c);Minn. R. 7011.1520(C)

Recordkeeping: Maintain records of the volatile organic liquid (VOL) stored, theperiod of storage, and the maximum true vapor pressure of the VOL during therespective storage period, calculated as described in 40 CFR Section 60.116b(e).

40 CFR Section 60.116b(c);Minn. R. 7011.1520(C)

REPORTING REQUIREMENTS: hdr

Notification: Notify the Commissioner in writing at least 30 days prior to the filling orrefilling of each tank for which an inspection is required by 40 CFR Section60.113b(a)(1) and (a)(4) to afford the Commissioner the opportunity to have anobserver present. If the inspection required by 40 CFR Section 60.113b(a)(4) is notplanned and the Permittee could not have known about the inspection 30 days inadvance of refilling the tank, the Permittee shall notify the Commissioner at least 7days prior to the refilling of the tank. Notification shall be made by telephonefollowed by written documentation demonstrating why the inspection wasunplanned. Alternatively, this notification including the written documentation maybe made in writing and sent by express mail so that it is received by theCommissioner at least 7 days prior to the refilling.

40 CFR Section 60.113b(a)(5);Minn. R. 7011.1520(C)

After each inspection required by 40 CFR Section 60.113b(a)(3) that finds holes ortears in the seal or seal fabric, or defects in the internal floating roof, or othercontrol equipment defects listed in 40 CFR Section 60.113b(a)(3)(ii), a report shallbe furnished to the Commissioner within thirty (30) days of the inspection. Thereport shall identify the storage vessel and the reason it did not meet thespecifications of 40 CFR Section 60.112b(a)(1) or 40 CFR Section 60.113b(a)(3)(ii)and list each repair made.

40 CFR Section 60.115b(a)(4);Minn. R. 7011.1520(C)

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Facility Name:

Permit Number:

05/05/15A-12

Reporting - Annual Inspection Results: If any of the conditions described in 40 CFRSection 60.113b(a)(2) are detected during the annual visual inspection required by40 CFR Section 60.113b(a)(2), a report shall be furnished to the Commissionerwithin 30 days of the inspection. Each report shall identify the tank, the nature ofthe defects, and the date the tank was emptied or the nature of and date the repairwas made.

40 CFR Section 60.113b(a)(3);Minn. R. 7011.1520(C)

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Facility Name:

Permit Number:

05/05/15A-13

Subject Item: SV 001 Grain Receiving & Handling Baghouse Stack (CE 001)

Associated Items: EU 001 Truck Receiving 1 - Loading-Unloading Equipment

EU 002 Truck Receiving 2 - Loading-Unloading Equipment

EU 003 Grain Elevator 1 - Elevator

EU 004 Conveyor

EU 005 Grain Bin 1 - Silo/Bin

EU 006 Grain Bin 2 - Silo/Bin

EU 007 Grain Day Bin (scalping bin) - Silo/Bin

EU 008 Grain Elevator 2 - Elevator

EU 009 Grain Day Bin (grinding bin) - Silo/Bin

EU 010 Hammermill Feed Conveyors - Conveyor

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS hdr

Total Particulate Matter: less than or equal to 0.0040 grains/dry standard cubic footusing 3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

Total Particulate Matter: less than or equal to 1.34 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 1.34 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 1.34 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Opacity: less than or equal to 10 percent opacity from SV 001. Minn. R. 7011.1005, subp. 3(D)

Process Throughput: less than or equal to 780,000 tons/year using 12-monthRolling Sum of grain received.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Vent all captured emissions from all grain receiving and handling equipment tofabric filter CE 001. The Permittee shall document periods of non-operation of CE001 during operation of any grain receiving and handling equipment. Refer tosubject item CE 001 for applicable periodic monitoring requirements.

Title I Conditions: To avoid major source thresholdunder Section 52.21 and Minn. R. 7007.3000

Process Throughput: less than or equal to 416.67 tons/hour using 8-hour BlockAverage of grain received. This operating parameter can not be increased withoutPM10 and PM2.5 remodeling. However a new (lesser) limit may be set pursuant toMinn. R. 7017.2025, subp. 3 based on the throughput recorded during the mostrecent MPCA-approved performance test where compliance was demonstrated.The new limit shall be implemented upon receipt of the Notice of Compliance lettergranting preliminary approval. The limit is final upon issuance of a permitamendment incorporating the change. This operating parameter must remain in thepermit to define the maximum capacity of the process on an hourly basis.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7017.2025, subp. 3

Grain Receiving Operating Times: The Permittee shall restrict EU 001 and EU 002grain receiving operations to the 12-hour period between 6 AM and 6 PM.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. Stat. Section 116.07, subds. 4a &9; Minn. R. 7007.0100, subp. 7(A), 7(L), & 7(M); Minn.R. 7007.0800, subps. 2 & 4; Minn. R.7009.0010-7009.0080

EQUIPMENT FLEXIBILITY hdr

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Facility Name:

Permit Number:

05/05/15A-14

Equipment Flexibility:

The Permittee may replace, add, or modify grain handling and storage equipment.If the Permittee replaces grain handling and storage equipment, adds new grainhandling and storage equipment, or modifies existing grain handling and storageequipment, such equipment is subject to all of the requirements of SV 001 as wellas those listed in the Total Facility subject item of this permit. Grain handling andstorage equipment is grain elevators, grain bins, and scalpers, but does not includereceiving pits.

Additionally:

1) Prior to making such a change, the Permittee shall apply for and obtain theappropriate permit amendment, as applicable. The Permittee shall completecalculations described in Minn. R. 7007.1200. A permit amendment is still requiredregardless of the emissions increase if the change will be subject to a newapplicable requirement or requires revisions to limits or monitoring andrecordkeeping requirements in this permit.

(continued)

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Equipment Flexibility (continued):

2) The Permittee shall submit a written notification to the MPCA no later than sevendays after completion of installation of any equipment installed under theseflexibility provisions;

3) Emissions of PM, PM10, and PM2.5 shall remain below the limits specified inthis subject item (SV 001);

4) All existing, new, replaced, and modified grain handling and storage equipmentat the facility shall be vented to CE 001 at all times that any of the equipment isoperating;

5) After the addition, replacement, or modification of equipment, stack emissionstesting for PM, PM10, and PM2.5 emissions shall be completed within 90 daysafter completing the addition, replacement, or modification to ensure that the newequipment does not cause an exceedance of applicable emission limits;

6) Replacement, modification, and/or addition of a unit/process venting to SV 001does not relieve the Permittee from SV 001 Title I 1990 CAAA requirements.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

RECORDKEEPING hdr

Grain Receiving Operating Times Recordkeeping: Each calendar day the Permitteeshall record and maintain a record of the daily start and stop time of EU 001 andEU 002 operation.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. Stat. Section 116.07, subds. 4a &9; Minn. R. 7007.0100, subp. 7(A), 7(L), & 7(M); Minn.R. 7007.0800, subps. 4 & 5; Minn. R.7009.0010-7009.0080

Daily Grain Throughput Monitoring and Recordkeeping:

Once each day the Permittee shall calculate and record:

1. the total grain received (in tons per day),2. the grain received by straight truck delivery (in tons per day).

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Title I Condition: To avoid major sourcethreshold at 40 CFR Section 52.21(b) and Minn. R.7007.3000

Monthly Grain Throughput Monitoring and Recordkeeping:

By the 15th day of each month, the Permittee shall calculate and record the grainreceiving throughput for the previous calendar month using the daily total grainthroughput records, and for the previous twelve-month period by summing themonthly throughput records for the previous 12 months.

Minn. R. 7007.0800, subps. 4 and 5

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-15

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 001 total particulate matter emissions. Testing shall be conducted atworst case conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lb PM/hrand gr PM/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 001 PM10 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lb PM10/hrand gr PM10/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 001 PM2.5 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lbPM2.5/hr and gr PM2.5/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 001PM emissions. Testing shall be conducted at worst case conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, or othermethod(s) approved by MPCA in the performance test plan approval. Test resultsshall be reported in units of lb PM/hr and gr PM/dscf.

'Equipment Installation' is the installation of new grain handling and storageequipment, modification of existing grain handling and storage equipment, and/orreplacement of existing grain handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 001PM10 emissions. Testing shall be conducted at worst case conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201A and202, or other method(s) approved by MPCA in the performance test plan approval.Test results shall be reported in units of lb PM10/hr and gr PM10/dscf.

'Equipment Installation' is the installation of new grain handling and storageequipment, modification of existing grain handling and storage equipment, and/orreplacement of existing grain handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 001PM2.5 emissions. Testing shall be conducted at worst case conditions as definedat Minn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201Aand 202, or other method(s) approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb PM2.5/hr and gr PM2.5/dscf.

'Equipment Installation' is the installation of new grain handling and storageequipment, modification of existing grain handling and storage equipment, and/orreplacement of existing grain handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-16

Procedure to Increase Process Throughput Limit:

The Permittee may increase the SV 001 process throughput limit by conducting aperformance test at an operating rate that exceeds the permitted SV 001 processthroughput limit and meeting requirements 1 through 7 below.

1. Performance Test Notification (written): due 90 days before performance test atan increased process throughput rate.

2. The Permittee may exceed the existing process throughput limit upon MPCAreceipt of the notification of a performance test at a higher process throughput(required by item 1 above).

3. The Permittee shall calculate actual emissions (i.e. for emission inventory or anyother purpose) using the emission rate from the increased process throughputperformance test retroactive to the date of the Performance Test Notification.

(continued)

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

Procedure to Increase Process Throughput Limit (continued):

4. Performance Test Plan: due 30 days before performance test. The Test Planshall identify the new proposed maximum process throughput limit.

5. Performance Test Pre-Test Meeting: due 7 days before performance test.

6. Performance Test Report: due 45 days after performance test.

7. Performance Test Report - Microfiche Copy: due 105 days after eachperformance test.

The Notification, Test Plan, and Test Report may be submitted in an alternativeformat as allowed by Minn. R. 7017.2018.

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

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Facility Name:

Permit Number:

05/05/15A-17

Subject Item: SV 002 Hammermilling Stack (CE 002)

Associated Items: EU 011 Hammermill 1 - Milling Equipment

EU 012 Hammermill 2 - Milling Equipment

EU 057 Hammermill 3 - Milling Equipment

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS hdr

Total Particulate Matter: less than or equal to 0.0040 grains/dry standard cubic footusing 3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

Total Particulate Matter: less than or equal to 0.94 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.94 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.94 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Opacity: less than or equal to 10 percent opacity from SV 002. Minn. R. 7011.1005, subp. 3(D)

Process Throughput: less than or equal to 109.2 tons/hour using 8-hour BlockAverage (3,900 bushels/hour at 56 pounds per bushel) of corn received unless anew limit is set pursuant to Minn. R. 7017.2025, subp. 3 based on the throughputrecorded during the most recent MPCA-approved performance test wherecompliance was demonstrated. The new limit shall be implemented upon receipt ofthe Notice of Compliance letter granting preliminary approval. The limit is finalupon issuance of a permit amendment incorporating the change. This operatingparameter must remain in the permit to define the maximum capacity of theprocess on an hourly basis.

Minn. R. 7017.2025, subp. 3

Vent all emissions from all hammer mills to fabric filter CE 002. The Permittee shalldocument periods of non-operation of CE 002 during operation of any hammermilling equipment. Refer to subject item CE 002 for applicable periodic monitoringrequirements.

Title I Conditions: To avoid major source thresholdunder Section 52.21 and Minn. R. 7007.3000

EQUIPMENT FLEXIBILITY hdr

Equipment Flexibility:

The Permittee may replace, add, or modify hammer milling equipment. If thePermittee replaces hammer milling equipment, adds new hammer millingequipment, or modifies existing hammer milling equipment, such equipment issubject to all of the requirements of SV 002 as well as those listed in the TotalFacility subject item of this permit.

Additionally:

1) Prior to making such a change, the Permittee shall apply for and obtain theappropriate permit amendment, as applicable. The Permittee shall completecalculations described in Minn. R. 7007.1200. A permit amendment is still requiredregardless of the emissions increase if the change will be subject to a newapplicable requirement or requires revisions to limits or monitoring andrecordkeeping requirements in this permit.

(continued)

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-18

Equipment Flexibility (continued):

2) The Permittee shall submit a written notification to the MPCA no later than sevendays after completion of installation of any equipment installed under theseflexibility provisions;

3) Emissions of PM, PM10, and PM2.5 shall remain below the limits specified inthis subject item (SV 002);

4) All existing, new, replaced, and modified grain handling and storage equipmentat the facility shall be vented to CE 002 at all times that any of the equipment isoperating;

5) After the addition, replacement, or modification of equipment, stack emissionstesting for PM, PM10, and PM2.5 emissions shall be completed within 90 daysafter completing the addition, replacement, or modification to ensure that the newequipment does not cause an exceedance of applicable emission limits;

6) Replacement, modification, and/or addition of a unit/process venting to SV 002does not relieve the Permittee from SV 002 Title I 1990 CAAA requirements.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 002 total particulate matter emissions. Testing shall be conducted atworst case conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lb PM/hrand gr PM/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 002 PM10 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lb PM10/hrand gr PM10/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 002 PM2.5 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of lbPM2.5/hr and gr PM2.5/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

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Facility Name:

Permit Number:

05/05/15A-19

Performance Test: due 90 days after Equipment Installation to measure SV 002PM emissions. Testing shall be conducted at worst case conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, or othermethod(s) approved by MPCA in the performance test plan approval. Test resultsshall be reported in units of lb PM/hr and gr PM/dscf.

'Equipment Installation' is the installation of new hammer milling equipment,modification of existing hammer milling equipment, and/or replacement of existinghammer milling equipment with same function equipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 002PM10 emissions. Testing shall be conducted at worst case conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201A and202, or other method(s) approved by MPCA in the performance test plan approval.Test results shall be reported in units of lb PM10/hr and gr PM10/dscf.

'Equipment Installation' is the installation of new hammer milling equipment,modification of existing hammer milling equipment, and/or replacement of existinghammer milling equipment with same function equipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 002PM2.5 emissions. Testing shall be conducted at worst case conditions as definedat Minn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201Aand 202, or other method(s) approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb PM2.5/hr and gr PM2.5/dscf.

'Equipment Installation' is the installation of new hammer milling equipment,modification of existing hammer milling equipment, and/or replacement of existinghammer milling equipment with same function equipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

MONITORING AND RECORDKEEPING hdr

Procedure to Increase Process Throughput Limit:

The Permittee may increase the SV 002 process throughput limit by conducting aperformance test at an operating rate that exceeds the permitted SV 002 processthroughput limit and meeting requirements 1 through 7 below.

1. Performance Test Notification (written): due 90 days before performance test atan increased process throughput rate.

2. The Permittee may exceed the existing process throughput limit upon MPCAreceipt of the notification of a performance test at a higher process throughput(required by item 1 above).

3. The Permittee shall calculate actual emissions (i.e. for emission inventory or anyother purpose) using the emission rate from the increased process throughputperformance test retroactive to the date of the Performance Test Notification.

(continued)

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

Procedure to Increase Process Throughput Limit (continued):

4. Performance Test Plan: due 30 days before performance test. The Test Planshall identify the new proposed maximum process throughput limit.

5. Performance Test Pre-Test Meeting: due 7 days before performance test.

6. Performance Test Report: due 45 days after performance test.

7. Performance Test Report - Microfiche Copy: due 105 days after eachperformance test.

The Notification, Test Plan, and Test Report may be submitted in an alternativeformat as allowed by Minn. R. 7017.2018.

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

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06300025 - 005

Facility Name:

Permit Number:

05/05/15A-20

Subject Item: SV 003 Fermentation (CO2) Scrubber Stack (CE 003)

Associated Items: EU 013 Fermenter 1; 730,000 gallons - Fermentation Equipment

EU 014 Fermenter 2; 730,000 gallons - Fermentation Equipment

EU 015 Fermenter 3; 730,000 gallons - Fermentation Equipment

EU 016 Fermenter 4; 730,000 gallons - Fermentation Equipment

EU 017 Beerwell; 985,000 gallons - Fermentation Equipment

EU 058 Fermenter 5; 730,000 gallons - Fermentation Equipment

EU 059 Fermenter 6; 730,000 gallons - Fermentation Equipment

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS hdr

Total Particulate Matter: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas unless required to further reduce emissions to comply with the lessstringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735.

Capacity-based PTE is 0.04 lb/hr

Minn. R. 7011.0715, subp. 1(A)

Volatile Organic Compounds: less than or equal to 7.31E-04 lbs/gallon using3-hour Average of ethanol produced.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000

Volatile Organic Compounds: less than or equal to 6.00 lbs/hour using 3-hourAverage as measured on a total mass VOC basis.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 and Minn. R. 7011.7000

Acetaldehyde: less than or equal to 1.10 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Acrolein: less than or equal to 0.0060 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Formaldehyde: less than or equal to 0.0150 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Methanol: less than or equal to 0.0150 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0715, subp. 1(B)

Process Throughput: less than or equal to 1050 gallons/minute using 8-hour BlockAverage of mash from a liquefaction tank (EU 023 or EU 024) into a fermenter (EU013 - EU 016), unless a new limit is set pursuant to Minn. R. 7017.2025, subp. 3based on the throughput recorded during the most recent MPCA-approvedperformance test where compliance was demonstrated. The new limit shall beimplemented upon receipt of the Notice of Compliance letter granting preliminaryapproval. The limit is final upon issuance of a permit amendment incorporating thechange. This operating parameter must remain in the permit to define themaximum capacity of the process on an hourly basis.

Minn. R. 7017.2025, subp. 3

Vent all emissions from all fermentation equipment to scrubber CE 003. ThePermittee shall document periods of non-operation of CE 003 during operation ofany fermentation equipment. Refer to subject item CE 003 for applicable periodicmonitoring requirements.

Title I Conditions: To avoid major source thresholdunder Section 52.21 and Minn. R. 7007.3000, and toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

EMISSION UNIT FLEXIBILITY hdr

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Facility Name:

Permit Number:

05/05/15A-21

Equipment Flexibility:

The Permittee may replace, add, or modify existing fermentation equipment.Fermentation equipment is fermentation tanks and/or beerwells. If the Permitteereplaces any existing fermentation equipment, adds new fermentation equipment,or modifies existing fermentation equipment, such fermentation equipment issubject to all of the requirements of SV 003 as well as the requirements in the TotalFacility subject item of this permit.

Additionally:

1) Prior to making such a change, the Permittee shall apply for and obtain theappropriate permit amendment, as applicable. The Permittee shall completecalculations described in Minn. R. 7007.1200. A permit amendment is still requiredregardless of the emissions increase if the change will be subject to a newapplicable requirement or requires revisions to limits or monitoring andrecordkeeping requirements in this permit.

(continued)

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Equipment Flexibility (continued):

2) VOC emissions shall remain below the limits specified in this subject item (SV003);

3) All existing, new, replaced, and modified fermentation equipment at the facilityshall be vented to CE 003 at all times that any of the equipment is operating;

4) After the addition, replacement, or modification of equipment, stack emissionstesting for VOC and HAPs emissions shall be completed within 90 days aftercompleting the addition, replacement, or modification to ensure that the newequipment does not cause an exceedance of the SV 003 VOC emission limit;

5) Replacement, modification, and/or addition of a unit/process venting to SV 003does not relieve the Permittee from SV 003 Title I 1990 CAAA requirements.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 36 months starting 05/13/2014 tomeasure SV 003 VOC emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 18, 25A, 320, or other method approved by MPCA in the performance testplan approval. Test results shall be reported in units of lb VOC/gal 200 proofethanol and lb VOC/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 36 months starting 05/13/2014 tomeasure SV 003 HAP emissions. Testing must include all chemicals listed inAppendix V of this permit, including acetaldehyde, acrolein, formaldehyde, andmethanol. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 18, 320, or other methodapproved by MPCA in the performance test plan approval. Test results shall bereported in units of lb HAP compound/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-22

Performance Test: due 90 days after Equipment Installation to measure SV 003VOC emissions in units of lb VOC/gal 200 proof ethanol and lb VOC/hr. Testingshall be conducted at worst case conditions as defined at Minn. R. 7017.2005,subp. 8, using EPA Reference Method 18, 25A, 320, or other method approved byMPCA in the performance test plan approval. Test results shall be reported in unitsof lb VOC/gal 200 proof ethanol and lb VOC/hr.

'Equipment Installation' is the installation of new fermentation equipment,modification of existing fermentation equipment, and/or replacement of existingfermentation equipment with same function equipment.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 003HAP emissions. Testing must include all chemicals listed in Appendix V of thispermit, including acetaldehyde, acrolein, formaldehyde, and methanol. Theperformance test shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 18, 320, or other methodapproved by MPCA in the performance test plan approval. Test results shall bereported in units of lb HAP compound/hr.

'Equipment Installation' is the installation of new fermentation equipment,modification of existing fermentation equipment, and/or replacement of existingfermentation equipment with same function equipment.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7017.2020, subp. 1

Procedure to Increase Process Throughput Limit:

The Permittee may increase the SV 003 process throughput limit by conducting aperformance test at an operating rate that exceeds the permitted SV 003 processthroughput limit and meeting requirements 1 through 7 below.

1. Performance Test Notification (written): due 90 days before performance test atan increased process throughput rate.

2. The Permittee may exceed the existing process throughput limit upon MPCAreceipt of the notification of a performance test at a higher process throughput(required by item 1 above).

3. The Permittee shall calculate actual emissions (i.e. for emission inventory or anyother purpose) using the emission rate from the increased process throughputperformance test retroactive to the date of the Performance Test Notification.

(continued)

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

Procedure to Increase Process Throughput Limit (continued):

4. Performance Test Plan: due 30 days before performance test. The Test Planshall identify the new proposed maximum process throughput limit.

5. Performance Test Pre-Test Meeting: due 7 days before performance test.

6. Performance Test Report: due 45 days after performance test.

7. Performance Test Report - Microfiche Copy: due 105 days after eachperformance test.

The Notification, Test Plan, and Test Report may be submitted in an alternativeformat as allowed by Minn. R. 7017.2018.

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

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Facility Name:

Permit Number:

05/05/15A-23

Subject Item: SV 004 Regenerative Thermal Oxidizer (CE 005)

Associated Items: EU 018 DDGS Dryer A (CE 006 & CE 005/SV 004 or CE 006 & CE 028/SV 005) - Dehydrator

EU 019 Mixer (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 020 Slurry Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 021 Cook Tube (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 022 Flash Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 023 Liquefaction Tank 1 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 024 Liquefaction Tank 2 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 025 Yeast Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 026 Beer Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 027 Side Stripper (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 028 Rectifier Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 029 190 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 030 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 031 200 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 032 Centrifuges (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 033 Evaporators (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 034 DDGS Dryer B (CE 007 & CE 005/SV 004 or CE 007 & CE 028/SV 005) - Dehydrator

EU 049 Regenerative Thermal Oxidizer (RTO) - Thermal Process Equipment

EU 060 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

What to do Why to do it

LIMITS

Refer to subject items GP 005, CE 005, and MR 005 for additional applicablerequirements.

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Total Particulate Matter: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas unless required to further reduce emissions to comply with the lessstringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735.

Minn. R. 7011.0715, subp. 1(A)

Total Particulate Matter: less than or equal to 0.116 lbs/ton of DDGS produced,using 3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Total Particulate Matter: less than or equal to 3.25 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.116 lbs/ton of DDGS produced, using3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 3.25 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.116 lbs/ton of DDGS produced, using3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 3.25 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Sulfur Dioxide: less than or equal to 0.275 lbs/ton of DDGS produced, using 3-hourAverage.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Sulfur Dioxide: less than or equal to 7.73 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Nitrogen Oxides: less than or equal to 0.083 lbs/ton of DDGS produced, using3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Nitrogen Oxides: less than or equal to 2.33 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-24

Volatile Organic Compounds: less than or equal to 0.306 lbs/ton of DDGSproduced, using 3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Volatile Organic Compounds: less than or equal to 8.59 lbs/hour using 3-hourAverage as measured on a total mass VOC basis.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2

Carbon Monoxide: less than or equal to 0.412 lbs/ton of DDGS produced, using3-hour Average.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Carbon Monoxide: less than or equal to 11.56 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Acetaldehyde: less than or equal to 0.15 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Acrolein: less than or equal to 0.015 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Formaldehyde: less than or equal to 0.075 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Methanol: less than or equal to 0.075 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Opacity: less than or equal to 20 percent opacity except for one six-minute periodper hour of not more than 60 percent opacity.

Minn. R. 7011.0610, subp. 1(A)(2)

EU 049 RTO Permitted Fuel: pipeline natural gas, propane/LPG, and process gas(DDGS dryer exhaust gases).

Minn. R. 7007.0800, subp. 2

Process Throughput: less than or equal to 1050 gallons/minute using 8-hour BlockAverage of beer from the Beer Well (EU 017) to the Beer Column (EU 026), unlessa new limit is set pursuant to Minn. R. 7017.2025, subp. 3 based on the throughputrecorded during the most recent MPCA-approved performance test wherecompliance was demonstrated. The new limit shall be implemented upon receipt ofthe Notice of Compliance letter granting preliminary approval. The limit is final uponissuance of a permit amendment incorporating the change. This operatingparameter must remain in the permit to define the maximum capacity of theprocess on an hourly basis.

Minn. R. 7017.2025, subp. 3

Process Throughput: less than or equal to 22.0 tons/hour using 8-hour BlockAverage of DDGS output from DDGS Dryer B (EU 034), unless a new limit is setpursuant to Minn. R. 7017.2025, subp. 3 based on the throughput recorded duringthe most recent MPCA-approved performance test where compliance wasdemonstrated. The new limit shall be implemented upon receipt of the Notice ofCompliance letter granting preliminary approval. The limit is final upon issuance ofa permit amendment incorporating the change. This operating parameter mustremain in the permit to define the maximum capacity of the process on an hourlybasis.

Minn. R. 7017.2025, subp. 3

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/09/2011 tomeasure SV 004 PM emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, or other method(s) approved by MPCA in the performance testplan approval. Test results shall be reported in units of lb PM/ton DDGS and lbPM/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-25

Performance Test: due before end of each year starting 06/09/2011 to measure SV004 PM10 emissions. Testing shall be conducted at worst case conditions asdefined at Minn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202,201A and 202, or other method(s) approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb PM10/ton DDGS and lbPM10/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each year starting 06/09/2011 to measure SV004 PM2.5 emissions. Testing shall be conducted at worst case conditions asdefined at Minn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202,201A and 202, or other method(s) approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb PM2.5/ton DDGS and lbPM2.5/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due 60 days after Permit Issuance to measure SV 004 SO2emissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 6C, or other methodapproved by MPCA in the performance test plan approval. Test results shall bereported in units of lb SO2/mmBtu and lb SO2/hr.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/09/2011 tomeasure SV 004 NOx emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 7E, or other method approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb NOx/mmBtu and lb NOx/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/09/2011 tomeasure SV 004 CO emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 10, or other method approved by MPCA in the performance test planapproval. Test results shall be reported in units of lb CO/ton DDGS and lb CO/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-26

Performance Test: due before end of each 60 months starting 06/09/2011 tomeasure SV 004 VOC emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 18, 25A, 320, or other method approved by MPCA in the performance testplan approval. Test results shall be reported in units of lb VOC/ton DDGS and lbVOC/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA;Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/09/2011 tomeasure SV 004 HAP emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 18, 320, or other method approved by MPCA in the performance test planapproval. Testing must include all chemicals listed in Appendix V of this permit,including acetaldehyde, acrolein, formaldehyde, and methanol. Test results shall bereported in units of lb HAP compound/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-27

Subject Item: SV 007 DDGS Cooler (EU 037) w/fabric filter (CE 027)

Associated Items: EU 037 Cooling Cyclone w/fabric filter (CE 027) - Cooler

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS

Refer to subject item EU 037 for additional applicable requirements.

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Total Particulate Matter: less than or equal to 0.0040 grains/dry standard cubic footusing 3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Volatile Organic Compounds: less than or equal to 13.27 lbs/hour using 3-hourAverage measured on a total mass VOC basis.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Volatile Organic Compounds: less than or equal to 0.4806 lbs/ton of DDGSproduced using 3-hour Average, measured on a total mass VOC basis.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Acetaldehyde: less than or equal to 0.15 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Acrolein: less than or equal to 0.030 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Formaldehyde: less than or equal to 0.060 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Methanol: less than or equal to 0.060 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Opacity: less than or equal to 10 percent opacity Minn. R. 7011.1005, subp. 3(D)

Process Throughput: less than or equal to 22.0 tons/hour using 8-hour BlockAverage of DDGS input to EU 037 from DDGS Dryer B (EU 034), unless a newlimit is set pursuant to Minn. R. 7017.2025, subp. 3 based on the throughputrecorded during the most recent MPCA-approved performance test wherecompliance was demonstrated. The new limit shall be implemented upon receipt ofthe Notice of Compliance letter granting preliminary approval. The limit is final uponissuance of a permit amendment incorporating the change. This operatingparameter must remain in the permit to define the maximum capacity of theprocess on an hourly basis.

Minn. R. 7017.2025, subp. 3

Vent all emissions from DDGS cooling equipment to fabric filter CE 027. ThePermittee shall document periods of non-operation of CE 027 during operation ofany DDGS cooling equipment. Refer to subject item CE 027 for applicablemonitoring requirements.

Title I Conditions: To avoid major source thresholdunder Section 52.21 and Minn. R. 7007.3000

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 007 total particulate matter emissions. Testing shall be conducted atworst case conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of grPM10/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

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Facility Name:

Permit Number:

05/05/15A-28

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 007 PM10 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of grPM10/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 007 PM2.5 emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, 201A and 202, or other method(s) approved by MPCA in theperformance test plan approval. Test results shall be reported in units of grPM2.5/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 007 VOC emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 18, 25A, 320, or other method approved by MPCA in the performance testplan approval. Test results shall be reported in units of lb VOC/ton DDGS and lbVOC/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each 60 months starting 06/01/2011 tomeasure SV 007 HAP emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 18, 320, or other method approved by MPCA in the performance test planapproval. Testing must include all chemicals listed in Appendix V of this permit,including acetaldehyde, acrolein, formaldehyde, and methanol. Test results shall bereported in units of lb HAP compound/hr.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required: 1) by this permit; 2) by the most recently approvedPerformance Test Frequency Plan; or 3) within a Notice of Compliance letter.Testing conducted more than two months prior to the performance test due datesatisfies this test due date requirement and will reset the performance test duedate.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-29

Subject Item: SV 008 DDGS Handling & Loadout Baghouse (CE 009)

Associated Items: EU 038 Truck Load Spout (DDGS) - Loading-Unloading Equipment

EU 039 DDGS Dump Pit/Auger - Material Handling Equipment

EU 052 DDGS storage silo - Silo/Bin

EU 055 DDGS storage silo 2 - Silo/Bin

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS hdr

Total Particulate Matter: less than or equal to 0.0040 grains/dry standard cubic footusing 3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Total Particulate Matter: less than or equal to 0.36 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.36 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.0040 grains/dry standard cubic foot using3-hour Average

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.36 lbs/hour using 3-hour Average Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Opacity: less than or equal to 10 percent opacity from SV 008. Minn. R. 7011.1005, subp. 3(D)

Process Throughput: less than or equal to 400 tons/hour using 8-hour BlockAverage of DDGS loaded (assuming 40 lb/bushel and 20,000 bushels/hr). Thisoperating parameter can not be increased without PM10 and PM2.5 remodeling.However a new (lesser) limit may be set pursuant to Minn. R. 7017.2025, subp. 3based on the throughput recorded during the most recent MPCA-approvedperformance test where compliance was demonstrated. The new limit shall beimplemented upon receipt of the Notice of Compliance letter granting preliminaryapproval. The limit is final upon issuance of a permit amendment incorporating thechange. This operating parameter must remain in the permit to define themaximum capacity of the process on an hourly basis.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. R. 7017.2025, subp. 3

Vent all captured DDGS emissions from all DDGS loadout, handling, and storageequipment to fabric filter CE 009. The Permittee shall document periods ofnon-operation of CE 009 during operation of any DDGS loadout, handling, andstorage equipment. Refer to subject item CE 009 for applicable periodic monitoringrequirements.

Title I Conditions: To avoid major source thresholdunder Section 52.21 and Minn. R. 7007.3000

DDGS Loadout Operating Times: The Permittee shall restrict DDGS loadout (EU038) operations to the 12-hour period between 6 AM and 6 PM.

Title I Condition: 40 CFR Section 52.21(k); Minn. R.7007.3000; Minn. Stat. Section 116.07, subds. 4a & 9;Minn. R. 7007.0100, subp. 7(A), 7(L), & 7(M); Minn. R.7007.0800, subps. 2 & 4; Minn. R.7009.0010-7009.0080

EQUIPMENT FLEXIBILITY hdr

Equipment Flexibility:

The Permittee may replace, add, or modify DDGS handling and storage equipment.If the Permittee replaces, adds new, or modifies existing DDGS handling and/orstorage equipment, such equipment is subject to all of the requirements of SV 008as well as those listed in the Total Facility subject item of this permit. DDGShandling and storage equipment is the DDGS dump pit and auger, but does notinclude DDGS loadout spouts.

Additionally:

1) Prior to making such a change, the Permittee shall apply for and obtain theappropriate permit amendment, as applicable. The Permittee shall completecalculations described in Minn. R. 7007.1200. A permit amendment is still requiredregardless of the emissions increase if the change will be subject to a newapplicable requirement or requires revisions to limits or monitoring andrecordkeeping requirements in this permit.

(continued)

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-30

Equipment Flexibility (continued):

2) The Permittee shall submit a written notification to the MPCA no later than sevendays after completion of installation of any equipment installed under theseflexibility provisions.

3) Emissions of PM, PM10, and PM2.5 shall remain below the limits specified inthis subject item (SV 008);

4) All existing, new, replaced, and modified DDGS handling and storage equipmentat the facility shall be vented to CE 009 at all times that any of the equipment isoperating;

5) After the addition, replacement, or modification of equipment, stack emissionstesting for PM, PM10, and PM2.5 emissions shall be completed within 90 daysafter completing the addition, replacement, or modification to ensure that the newequipment does not cause an exceedance of applicable emission limits;

6) Replacement, modification, and/or addition of a unit/process venting to SV 008does not relieve the Permittee from SV 008 Title I 1990 CAAA requirements.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

PERFORMANCE TESTING hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each 36 months starting 08/06/2008 tomeasure SV 008 total PM emissions. Testing shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, or other method(s) approved by MPCA in the performance testplan approval. Test results shall be reported in units of lb PM/hr and gr PM/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date requirement, and does not reset the testdue date for future testing required by: 1) this permit, 2) by the most recentlyapproved Performance Test Frequency Plan, or 3) if specified in a Notice ofCompliance letter. Testing conducted more than two months prior to theperformance test due date does not satisfy this test due date requirement and isconsidered an additional test.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each year starting 08/06/2008 to measure SV008 PM10 emissions. Testing shall be conducted at 12-month intervals, and atworst case conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, 201A and 202, or other method(s) approved byMPCA in the performance test plan approval. Test results shall be reported in unitsof lb PM10/hr and gr PM10/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date requirement, and does not reset the testdue date for future testing required by: 1) this permit, 2) by the most recentlyapproved Performance Test Frequency Plan, or 3) if specified in a Notice ofCompliance letter. Testing conducted more than two months prior to theperformance test due date does not satisfy this test due date requirement and isconsidered an additional test.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

Performance Test: due before end of each year starting 08/06/2008 to measure SV008 PM2.5 emissions. Testing shall be conducted at 12-month intervals and atworst case conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, 201A and 202, or other method(s) approved byMPCA in the performance test plan approval. Test results shall be reported in unitsof lb PM2.5/hr and gr PM2.5/dscf.

Testing conducted during the 60 days prior to the performance test due datesatisfies the performance test due date requirement, and does not reset the testdue date for future testing required by: 1) this permit, 2) by the most recentlyapproved Performance Test Frequency Plan, or 3) if specified in a Notice ofCompliance letter. Testing conducted more than two months prior to theperformance test due date does not satisfy this test due date requirement and isconsidered an additional test.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7017.2020,subp. 1

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Facility Name:

Permit Number:

05/05/15A-31

Performance Test: due 90 days after Equipment Installation to measure SV 008PM emissions. The performance test shall be conducted at worst case conditionsas defined at Minn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and202, or other method approved by MPCA in the performance test plan approval.Test results shall be reported in units of lb PM/hr and gr PM/dscf.

'Equipment Installation' is the installation of new DDGS handling and storageequipment, modification of existing DDGS handling and storage equipment, and/orreplacement of existing DDGS handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 008PM10 emissions. The performance test shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, Methods 201A and 202, or other method approved by MPCAin the performance test plan approval. Test results shall be reported in units of lbPM/10hr and gr PM10/dscf.

'Equipment Installation' is the installation of new DDGS handling and storageequipment, modification of existing DDGS handling and storage equipment, and/orreplacement of existing DDGS handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 90 days after Equipment Installation to measure SV 008PM2.5 emissions. The performance test shall be conducted at worst caseconditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethods 5 and 202, Methods 201A and 202, or other method approved by MPCAin the performance test plan approval. Test results shall be reported in units of lbPM2.5/hr and gr PM2.5/dscf.

'Equipment Installation' is the installation of new DDGS handling and storageequipment, modification of existing DDGS handling and storage equipment, and/orreplacement of existing DDGS handling and storage equipment with same functionequipment.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Procedure to Increase Process Throughput Limit:

The Permittee may increase the SV 008 process throughput limit by conducting aperformance test at an operating rate that exceeds the permitted SV 008 processthroughput limit and meeting requirements 1 through 7 below.

1. Performance Test Notification (written): due 90 days before performance test atan increased process throughput rate.

2. The Permittee may exceed the existing process throughput limit upon MPCAreceipt of the notification of a performance test at a higher process throughput(required by item 1 above).

3. The Permittee shall calculate actual emissions (i.e. for emission inventory or anyother purpose) using the emission rate from the increased process throughputperformance test retroactive to the date of the Performance Test Notification.

(continued)

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

Procedure to Increase Process Throughput Limit (continued):

4. Performance Test Plan: due 30 days before performance test. The Test Planshall identify the new proposed maximum process throughput limit.

5. Performance Test Pre-Test Meeting: due 7 days before performance test.

6. Performance Test Report: due 45 days after performance test.

7. Performance Test Report - Microfiche Copy: due 105 days after eachperformance test.

The Notification, Test Plan, and Test Report may be submitted in an alternativeformat as allowed by Minn. R. 7017.2018.

Minn. R. 7007.0800, subp. 2;Minn. R. 7017.2018; Minn. R.7017.2030, subps. 1-4, Minn. R.7107.2035, subps. 1 & 2

RECORDKEEPING hdr

DDGS Loadout Recordkeeping: Each calendar day the Permittee shall record andmaintain a record of the daily start and stop time of EU 038 operation.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000; Minn. Stat. Section 116.07, subds. 4a &9; Minn. R. 7007.0100, subp. 7(A), 7(L), & 7(M); Minn.R. 7007.0800, subps. 4 & 5; Minn. R.7009.0010-7009.0080

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Facility Name:

Permit Number:

05/05/15A-32

Subject Item: EU 018 DDGS Dryer A (CE 006 & CE 005/SV 004 or CE 006 & CE 028/SV 005) - Dehydrator

Associated Items: CE 005 Thermal Oxidizer - Regenerative

CE 006 Multiple Cyclone w/o Fly Ash Reinjection - Most Multiclones

CE 028 Direct Flame Afterburner

GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

SV 004 Regenerative Thermal Oxidizer (CE 005)

SV 005 NG-Fired Boiler (CE 028)

What to do Why to do it

LIMITS hdr

Total Particulate Matter: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas unless required to further reduce emissions to comply with the lessstringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735.

Compliance with this limit is demonstrated by compliance with the Total ParticulateMatter limit under SV004.

Minn. R. 7011.0715, subp. 1(A)

Opacity: less than or equal to 20 percent opacity This opacity limit applies only ifDryer A exhaust is vented directly to atmosphere. Otherwise, the opacity limit underSV004 applies.

Minn. R. 7011.0715, subp. 1(B)

OPERATIONAL REQUIREMENTS hdr

Wetcake: When wetcake is stockpiled for offsite shipment and not dried, the wetcake shall be stored onsite for no more than 72 hours, unless the maximum dailytemperature is less than 55 degrees F.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 2

Time stored onsite is determined for each 72 hour period (3 consecutive calendardays) by dividing the total amount of wetcake put into storage during the 72 hoursby the average daily amount shipped offsite during the same 72 hours.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 4

The Permittee shall keep a record of the amount of wetcake sent to storage eachday and the amount shipped offsite each day.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 5

When a shutdown or breakdown of CE 005 or CE 028 occurs, the Permittee shallstop feed of wetcake to the dryers. The Permittee may continue operation of thedryers only as long as necessary to empty material already in the dryers. ThePermittee may resume wetcake feed to the dryers after CE 005 or CE 028 resumesoperation.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7019.1000, subp. 4Minn. R. 7007.0800, subp. 2

Limits set as a result of a performance test on SV004 apply until superseded asstated in the MPCA's Notice of Compliance letter granting preliminary approval.Preliminary approval is based on formal review of a subsequent performance teston the same unit as specified by Minn. R. 7017.2025, subp. 3. The limit is finalupon issuance of a permit amendment incorporating the change.

Minn. R. 7017.2025, subp. 3

Temperature: less than or equal to 425 degrees F measured at the Dryer A exhaustgas outlet.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Vent all dryer emissions to the regenerative thermal oxidizer (CE 005) or theboiler/direct flame afterburner (EU 035/CE 028). See CE 005 for operation andmaintenance requirements for the regenerative thermal oxidizer, and EU 035 andCE 028 for operation and maintenance requirements for the direct flameafterburner.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain dryer A in accordance with the Operationand Maintenance (O & M) Plan. The Permittee shall keep copies of the O & MPlan available on-site for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

MONITORING AND RECORDKEEPING hdr

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Facility Name:

Permit Number:

05/05/15A-33

Once each day of EU 018 operation, the Permittee shall observe and record theEU 018 exhaust gas temperature.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-34

Subject Item: EU 034 DDGS Dryer B (CE 007 & CE 005/SV 004 or CE 007 & CE 028/SV 005) - Dehydrator

Associated Items: CE 005 Thermal Oxidizer - Regenerative

CE 007 Multiple Cyclone w/o Fly Ash Reinjection - Most Multiclones

CE 028 Direct Flame Afterburner

GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

SV 004 Regenerative Thermal Oxidizer (CE 005)

SV 005 NG-Fired Boiler (CE 028)

What to do Why to do it

LIMITS hdr

Total Particulate Matter: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas unless required to further reduce emissions to comply with the lessstringent limit of either Minn. R. 7011.0730 or Minn. R. 7011. 0735.

Compliance with this limit is demonstrated by compliance with the Total ParticulateMatter limit under SV004.

Minn. R. 7011.0715, subp. 1(A)

Opacity: less than or equal to 20 percent opacity . This opacity limit applies only ifDryer B exhaust is vented directly to atmosphere. Otherwise, the opacity limit underSV004 applies.

Minn. R. 7011.0715, subp. 1(B)

OPERATIONAL REQUIREMENTS hdr

Wetcake: When wetcake is stockpiled for offsite shipment and not dried, the wetcake shall be stored onsite for no more than 72 hours, unless the maximum dailytemperature is less than 55 degrees F.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 2

Time stored onsite is determined for each 72 hour period (3 consecutive calendardays) by dividing the total amount of wetcake put into storage during the 72 hoursby the average daily amount shipped offsite during the same 72 hours.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 4

The Permittee shall keep a record of the amount of wetcake sent to storage eachday and the amount shipped offsite each day.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7007.0800, subp. 5

When a shutdown or breakdown of CE 005 or CE 028 occurs, the Permittee shallstop feed of wetcake to the dryers. The Permittee may continue operation of thedryers only as long as necessary to empty material already in the dryers. ThePermittee may resume wetcake feed to the dryers after CE 005 or CE 028 resumesoperation.

This is a state only requirement and is not enforceable by the EPA Administrator orcitizens under the Clean Air Act.

Minn. R. 7019.1000, subp. 4Minn. R. 7007.0800, subp. 2

Limits set as a result of a performance test on SV004 apply until superseded asstated in the MPCA's Notice of Compliance letter granting preliminary approval.Preliminary approval is based on formal review of a subsequent performance teston the same unit as specified by Minn. R. 7017.2025, subp. 3. The limit is finalupon issuance of a permit amendment incorporating the change.

Minn. R. 7017.2025, subp. 3

Temperature: less than or equal to 425 degrees F measured at the Dryer B exhaustgas outlet.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

Vent all dryer emissions to the regenerative thermal oxidizer (CE 005) or theboiler/direct flame afterburner (EU 035/CE 028). See CE 005 for operation andmaintenance requirements for the regenerative thermal oxidizer, and EU 035 andCE 028 for operation and maintenance requirements for the direct flameafterburner.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain Dryer B in accordance with the Operationand Maintenance (O & M) Plan. The Permittee shall keep copies of the O & MPlan available on-site for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

MONITORING AND RECORDKEEPING hdr

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Facility Name:

Permit Number:

05/05/15A-35

Once each day of EU 034 operation, the Permittee shall observe and record theEU 034 exhaust gas temperature.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-36

Subject Item: EU 035 NG-Fired Boiler (Direct Flame Afterburner CE 028) - Boiler

Associated Items: GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

MR 001 NOx

SV 005 NG-Fired Boiler (CE 028)

What to do Why to do it

LIMITS AND OPERATING REQUIREMENTS

Refer to subject items GP 005, CE 028, and MR 006 for additional applicablerequirements.

hdr

Total Particulate Matter: less than or equal to 0.0075 lbs/million Btu heat inputusing 3-hour Average applicable at all times including periods of startup, shutdown,or malfunction when EU 035 is not operating as CE 028. PM is measured as thesum of filterable and condensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Total Particulate Matter: less than or equal to 5.56 lbs/hour using 3-hour Averageapplicable at all times including periods of startup, shutdown, or malfunction whenEU 035 is operating as CE 028. PM is measured as the sum of filterable andcondensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 0.0075 lbs/million Btu heat input using 3-hourAverage applicable at all times including periods of startup, shutdown, ormalfunction when EU 035 is not operating as CE 028. PM10 is measured as thesum of filterable and condensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 10 micron: less than or equal to 5.56 lbs/hour using 3-hour Averageapplicable at all times including periods of startup, shutdown, or malfunction whenEU 035 is operating as CE 028. PM10 is measured as the sum of filterable andcondensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 0.0075 lbs/million Btu heat input using3-hour Average applicable at all times including periods of startup, shutdown, ormalfunction when EU 035 is not operating as CE 028. PM2.5 is measured as thesum of filterable and condensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

PM < 2.5 micron: less than or equal to 5.56 lbs/hour using 3-hour Averageapplicable at all times including periods of startup, shutdown, or malfunction whenEU 035 is operating as CE 028. PM2.5 is measured as the sum of filterable andcondensable particulate matter.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Sulfur Dioxide: less than or equal to 0.0006 lbs/million Btu heat input using 3-hourAverage applicable at all times including periods of startup, shutdown, ormalfunction when EU 035 is not operating as CE 028.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Sulfur Dioxide: less than or equal to 7.73 lbs/hour using 3-hour Average applicableat all times including periods of startup, shutdown, or malfunction when EU 035 isoperating as CE 028.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Nitrogen Oxides: less than or equal to 0.10 lbs/million Btu heat input using 30-dayRolling Average applicable at all times including periods of startup, shutdown, ormalfunction.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; 40CFR Section 60.44b(l)(2); Minn. R. 7011.0565

Volatile Organic Compounds: less than or equal to 0.0054 lbs/million Btu heat inputusing 3-hour Average applicable at all times including periods of startup, shutdown,or malfunction when EU 035 is not operating as CE 028. VOC is measured on atotal mass of VOC basis.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Volatile Organic Compounds: less than or equal to 9.57 lbs/hour using 3-hourAverage applicable at all times including periods of startup, shutdown, ormalfunction when EU 035 is operating as CE 028. VOC is measured on a totalmass of VOC basis.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Carbon Monoxide: less than or equal to 26.36 lbs/hour using 3-hour Average whenEU 035 is operating as a control device (CE 028). This limit applies at all timesexcept during periods of startup, shutdown, or malfunction.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Carbon Monoxide: less than or equal to 15.0 lbs/hour using 3-hour Average whenEU 035 is not operating as a control device (CE 028). This limit applies at all timesexcept during periods of startup, shutdown, or malfunction.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000

Acetaldehyde: less than or equal to 0.16 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Acrolein: less than or equal to 0.037 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Formaldehyde: less than or equal to 0.18 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-37

Methanol: less than or equal to 0.062 lbs/hour using 3-hour Average Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Temperature: greater than or equal to 1575 degrees F using 3-hour RollingAverage at the EU 035 firebox outlet when EU 035 is used to control emissionsnormally controlled by CE 005, unless a new minimum is required to be setpursuant to Minn. R. 7017.2025, subp. 3. If a new minimum is required to be set itwill be based on the values recorded during the most recent MPCA-approvedperformance test where compliance was demonstrated for VOC, CO, and HAPemissions. The new minimum shall be implemented upon receipt of the Notice ofCompliance letter granting preliminary approval. The revised minimum temperatureis final upon issuance of a permit amendment incorporating the change. If the3-hour rolling average temperature is below the required minimum, the VOC, CO,and HAPs emitted during that time are considered uncontrolled until the averagetemperature is above the minimum temperature requirement. This shall be reportedas a deviation.

This requirement is repeated under CE 028. Refer to CE 028 and MR 006 foradditional CE 028 monitoring requirements.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7007.0800, subps. 2 & 14

Process Throughput: less than or equal to 1050 gallons/minute using 8-hour BlockAverage of beer from the Beer Well (EU 017) to the Beer Column (EU 026), unlessa new limit is set pursuant to Minn. R. 7017.2025, subp. 3 based on the throughputrecorded during the most recent MPCA-approved performance test wherecompliance was demonstrated. The new limit shall be implemented upon receipt ofthe Notice of Compliance letter granting preliminary approval. The limit is final uponissuance of a permit amendment incorporating the change. This operatingparameter must remain in the permit to define the maximum capacity of theprocess on an hourly basis.

Minn. R. 7017.2025, subp. 3

Process Throughput: less than or equal to 22.0 tons/hour using 8-hour BlockAverage of DDGS output from DDGS Dryer B (EU 034), unless a new limit is setpursuant to Minn. R. 7017.2025, subp. 3 based on the throughput recorded duringthe most recent MPCA-approved performance test where compliance wasdemonstrated. The new limit shall be implemented upon receipt of the Notice ofCompliance letter granting preliminary approval. The limit is final upon issuance ofa permit amendment incorporating the change. This operating parameter mustremain in the permit to define the maximum capacity of the process on an hourlybasis.

Minn. R. 7017.2025, subp. 3

EU 035 Permitted Fuel: Pipeline natural gas and propane/LPG when not controllingemissions normally controlled by EU 049/SV 004.

EU 035 Permitted Fuel: Pipeline natural gas, propane/LPG, and process gas(DDGS dryer exhaust gases) when EU 035 functions as CE 028 and controlsemissions normally controlled by EU 049/SV 004.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

PERFORMANCE TESTING REQUIREMENTS hdr

The Permittee shall monitor and record all relevant Appendix VII process operatingparameters and control equipment operating parameters during stack testing.

Minn. R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 PMemissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, or othermethod(s) approved by MPCA in the performance test plan approval. Test resultsshall be reported in units of lb PM/ton DDGS and lb PM/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 PM10emissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201A and 202,or other method(s) approved by MPCA in the performance test plan approval. Testresults shall be reported in units of lb PM10/ton DDGS and lb PM10/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 PM2.5emissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, 201A and 202,or other method(s) approved by MPCA in the performance test plan approval. Testresults shall be reported in units of lb PM2.5/ton DDGS and lb PM2.5/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 SO2emissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 6C or other method approvedby MPCA in the performance test plan approval. Test results shall be reported inunits of lb SO2/ton DDGS and lb SO2/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

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Facility Name:

Permit Number:

05/05/15A-38

Performance Test: due 180 days after Permit Issuance to measure CE 028 COemissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 10 or other method approvedby MPCA in the performance test plan approval. Test results shall be reported inunits of lb CO/ton DDGS and lb CO/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 VOCemissions. Testing shall be conducted at worst case conditions as defined at Minn.R. 7017.2005, subp. 8, using EPA Reference Method 18, 25A, 320, or othermethod approved by MPCA in the performance test plan approval. Test resultsshall be reported in units of lb VOC/ton DDGS and lb VOC/hr.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Minn.R. 7017.2020, subp. 1

Performance Test: due 180 days after Permit Issuance to measure CE 028 HAPemissions. Testing must include all chemicals listed in Appendix V of this permit,including acetaldehyde, acrolein, formaldehyde, and methanol.

Testing shall be conducted at worst case conditions as defined at Minn. R.7017.2005, subp. 8, using EPA Reference Method 18, 320, or other methodapproved by MPCA in the performance test plan approval.

Test results shall be reported in units of lb HAP compound/hr.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and 7011.7000; Minn. R.7017.2020, subp. 1

MONITORING hdr

The Permittee shall install, calibrate, maintain, and operate a continuous monitoringsystem for measuring EU 035 nitrogen oxides emissions discharged to theatmosphere and record the output of the system.

Refer to subject item MR 001 for additional NOx monitoring requirements.

40 CFR Section 60.48b(a); Minn. R. 7017.1010

NOx Monitoring During CEMS Breakdown: When NOx emission data are notobtained because of CEMS breakdowns, repairs, calibration checks and zero andspan adjustments, emission data will be obtained by using standby monitoringsystems, Method 7 of appendix A of pt. 60, Method 7A of appendix A of pt. 60, orother approved reference methods to provide emission data for a minimum of 75percent of the operating hours in each steam generating unit operating day, in atleast 22 out of 30 successive steam generating unit operating days.

40 CFR Section 60.48b(f)

Monitoring Equipment: The Permittee shall install and maintain thermocouples toconduct CE 028 firebox temperature monitoring required by this permit. Themonitoring equipment must be installed, in use, and properly maintained wheneveroperation of the monitored control equipment is required.

Refer to subject items CE 028 and MR 006 for additional CE 028 temperaturemonitoring requirements.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 and 7011.7000; Minn. R. 7007.0800,subp. 4(B)

RECORDKEEPING AND REPORTING hdr

The Permittee shall submit to the Administrator the performance test data from theinitial performance test and the performance evaluation of the CEMS. ThePermittee shall submit to the Administrator the maximum heat input capacity datafrom the demonstration of the maximum heat input capacity of the affected facility.

40 CFR Section 60.49b(b)Minn. R. 7011.0565

The Permittee shall maintain records of the following information for each steamgenerating unit operating day:

(1) Calendar date.(2) The average hourly nitrogen oxides emission rates (expressed as NO2) (ng/J orlb/million Btu heat input) measured or predicted.(3) The 30-day average nitrogen oxides emission rates (ng/J or lb/million Btu heatinput) calculated at the end of each steam generating unit operating day from themeasured or predicted hourly nitrogen oxide emission rates for the preceding 30steam generating unit operating days.(4) Identification of the steam generating unit operating days when the calculated30-day average nitrogen oxides emission rates are in excess of the nitrogen oxidesemissions limit, with the reasons for such excess emissions as well as adescription of corrective actions taken.

(continued)

40 CFR Section 60.49b(g)Minn. R. 7011.0565

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Facility Name:

Permit Number:

05/05/15A-39

(Continued from above)

(5) Identification of the steam generating unit operating days for which pollutantdata have not been obtained, including reasons for not obtaining sufficient data anda description of corrective actions taken.(6) Identification of the times when emission data have been excluded from thecalculation of average emission rates and the reasons for excluding data.(7) Identification of "F" factor used for calculations, method of determination, andtype of fuel combusted.(8) Identification of the times when the pollutant concentration exceeded full spanof the continuous monitoring system.(9) Description of any modifications to the continuous monitoring system that couldaffect the ability of the continuous monitoring system to comply with PerformanceSpecification 2 or 3.(10) Results of daily CEMS drift tests and quarterly accuracy assessments asrequired under appendix F, Procedure 1.

40 CFR Section 60.49b(g)Minn. R. 7011.0565

The Permittee shall record and maintain records of the amounts of each fuelcombusted during each day and calculate the annual capacity factor individually foreach fuel for the reporting period. The annual capacity factor is determined on a12-month rolling average basis with a new annual capacity factor calculated at theend of each calendar month.

40 CFR Section 60.49b(d)Minn. R. 7011.0565

Recordkeeping: The owner or operator must retain records of all CEMS monitoringdata and support information for a period of five years from the date of themonitoring sample, measurement or report. Records shall be kept at the source.

40 CFR Section 60.7(f)Minn. R. 7017.1130

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Facility Name:

Permit Number:

05/05/15A-40

Subject Item: EU 040 Ethanol Loading Rack - Loading-Unloading Equipment

Associated Items: CE 010 Flaring

SV 009 Ethanol Loading Rack Flare (CE 010)

What to do Why to do it

The Permittee shall vent all emissions to the CE 010 flare when loading ethanolinto tanker trucks. Refer to subject item CE 010 for flare operating and monitoringrequirements.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-41

Subject Item: EU 048 Fire Pump 300 Hp CI 2005 - Reciprocating IC Engine

Associated Items: SV 017 Fire Pump

What to do Why to do it

EU 048 is an existing stationary reciprocating internal combustion engine located atan area source of hazardous air pollutants because construction of EU 048commenced prior to June 12, 2006.

40 CFR Section 63.6590(a)(1)(iii); Minn. R. 7011.8150

OPERATING REQUIREMENTS hdr

Fuel Type: Restricted to distillate fuel oil, biodiesel, or blends of distillate fuel oiland biodiesel

Minn. R. 7007.0800, subp. 2;Minn. R. 7005.0100, subp. 35a

Opacity: less than or equal to 20 percent opacity once operating temperatures havebeen attained.

Minn. R. 7011.2300, subp. 1

Emergency Engine Operation Other Than Testing: EU 048 may operate outside ofthe 4-hour time period allowed for testing, only in the event of an emergency.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Operation for maintenance checks and readiness must be conducted between12:00 PM and 4:00 PM CST.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

NSPS SUBPART IIII REQUIREMENTS hdr

Owners and operators of fire pump engines with a displacement of less than 30liters per cylinder must comply with the emission standards in table 4 to subpart IIIIfor all pollutants.

40 CFR Section 60.4205(c)Minn. R. 7011.2305

On and after October 1, 2010, diesel fuel must meet 40 CFR Section 80.510(b) fornonroad diesel fuel as follows:

Sulfur content, 15 ppm maximum (meets SO2 limit in Minn. R. 7011.2300);

A minimum cetane index of 40 or a maximum aromatic content of 35 volumepercent.

40 CFR Section 60.4207(a)40 CFR Section 60.4207(b)40 CFR Section 80.510(a)Minn. R. 7011.2305Most stringent, meets limit required by Minn. R.7011.2300

The engine must be equipped with a non-resettable hour meter. 40 CFR Section 60.4209(a)Minn. R. 7011.2305

The Permittee shall keep the records or perform the tests specified in one of themethods specified in 40 CFR Section 60.4211.

40 CFR Section 60.4211(b)Minn. R. 7011.2305

Annual operation for maintenance checks and readiness testing is limited to 100hrs/yr.

40 CFR Section 60.4211(e)Minn. R. 7011.2305

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Facility Name:

Permit Number:

05/05/15A-42

Subject Item: EU 049 Regenerative Thermal Oxidizer (RTO) - Thermal Process Equipment

Associated Items: CE 005 Thermal Oxidizer - Regenerative

SV 004 Regenerative Thermal Oxidizer (CE 005)

What to do Why to do it

Fuel Usage: Natural gas and propane only. Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-43

Subject Item: EU 053 Admin Bldg Emergency Generator 268 Hp CI 2005 - Reciprocating IC Engine

Associated Items: SV 020 Admin. Bldg. Emergency Generator

What to do Why to do it

EU 053 is an existing stationary reciprocating internal combustion engine located atan area source of hazardous air pollutants because construction of EU 053commenced prior to June 12, 2006.

40 CFR Section 63.6590(a)(1)(iii)Minn. R. 7011.8150

LIMITS AND OPERATING REQUIREMENTS hdr

Fuel type: Restricted to distillate fuel oil, biodiesel, or blends of distillate fuel oil andbiodiesel

Minn. R. 7007.0800, subp. 2Minn. R. 7005.0100, subp. 35a

Sulfur Content of Fuel: less than or equal to 15 parts per million of sulfur by weight.Meets SO2 limit at Minn. R. 7011.2300.

Minn. R. 7007.0800, subp. 2

Annual operation for maintenance checks and readiness testing is limited to 100hrs/yr.

Minn. R. 7007.0800, subp. 2

Operation for maintenance checks and readiness must be conducted between12:00 PM and 4:00 PM CST.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Opacity: less than or equal to 20 percent opacity once operating temperatures havebeen attained.

Minn. R. 7011.2300, subp. 1

Emergency Engine Operation Other Than Testing: EU 053 may operate outside ofthe 4-hour time period allowed for testing, only in the event of an emergency.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

RECORDKEEPING hdr

The engine must be equipped with a non-resettable hour meter. Minn. R. 7007.0800, subp. 4

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Facility Name:

Permit Number:

05/05/15A-44

Subject Item: EU 054 Boiler Feedwater Emergency Generator 150 Hp SI 2005 - Reciprocating IC Engine

Associated Items: SV 022 Emergency Boiler Water Pump

What to do Why to do it

EU 054 is an existing stationary reciprocating internal combustion engine located atan area source of hazardous air pollutants because construction of EU 054commenced prior to June 12, 2006.

40 CFR Section 63.6590(a)(1)(iii)Minn. R. 7011.8150

OPERATING REQUIREMENTS hdr

Permitted fuel type: propane or natural gas only Minn. R. 7005.0100, subp. 35a

Opacity: less than or equal to 20 percent opacity once operating temperatures havebeen attained.

Minn. R. 7011.2300, subp. 1

Annual operation for maintenance checks and readiness testing is limited to 100hrs/yr.

Minn. R. 7007.0800, subp. 2

Operation for maintenance checks and readiness must be conducted between12:00 PM and 4:00 PM CST.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

Emergency Engine Operation Other Than Testing: EU 054 may operate outside ofthe 4-hour time period allowed for testing, only in the event of an emergency.

Title I Condition: 40 CFR Section 52.21(k) and Minn.R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-45

Subject Item: CE 001 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 001 Truck Receiving 1 - Loading-Unloading Equipment

EU 002 Truck Receiving 2 - Loading-Unloading Equipment

EU 003 Grain Elevator 1 - Elevator

EU 004 Conveyor

EU 005 Grain Bin 1 - Silo/Bin

EU 006 Grain Bin 2 - Silo/Bin

EU 007 Grain Day Bin (scalping bin) - Silo/Bin

EU 008 Grain Elevator 2 - Elevator

EU 009 Grain Day Bin (grinding bin) - Silo/Bin

EU 010 Hammermill Feed Conveyors - Conveyor

GP 001 Grain Receiving, Handling, & Storage; DDGS Handling & Loadout

What to do Why to do it

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for Total Particulate Matter: greater than or equal to99.0 percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for PM < 10 micron: greater than or equal to 99.0percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for PM < 2.5 micron: greater than or equal to 99.0percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Pressure Drop: greater than or equal to 0.25 inches of water column and less thanor equal to 8.0 inches of water column . A new range may be set pursuant to Minn.R. 7017.2025, subp. 3 based on the values recorded during the most recentMPCA-approved performance test where compliance was demonstrated. The newrange shall be implemented upon receipt of the Notice of Compliance lettergranting preliminary approval. The range is final upon issuance of a permitamendment incorporating the change. The Permittee shall record the pressuredrop at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Visible Emissions: The Permittee shall check the fabric filter stack (SV 001) for anyvisible emissions once each day of operation during daylight hours.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Recordkeeping of Visible Emissions and Pressure Drop. The Permittee shallrecord the time and date of each visible emission inspection and pressure dropreading, and whether or not any visible emissions were observed, and whether ornot the observed pressure drop was within the range specified in this permit

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the fabric filter in accordance with theOperation and Maintenance (O & M) Plan. The Permittee shall keep copies of theO & M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Corrective Actions: The Permittee shall take corrective action as soon as possible ifany of the following occur:- visible emissions are observed;- the recorded pressure drop is outside the required operating range; or- the fabric filter or any of its components are found during the inspections to needrepair.Corrective actions shall return the pressure drop to within the permitted range,eliminate visible emissions, and/or include completion of necessary repairsidentified during the inspection, as applicable. Corrective actions include, but arenot limited to, those outlined in the O & M Plan for the fabric filter. The Permitteeshall keep a record of the type and date of any corrective action taken for eachfilter.

Minn. R. 7007.0800, subps. 4, 5, and 14

Periodic Inspections: At least once per calendar quarter, or more frequently asrequired by the manufacturing specifications, the Permittee shall inspect the controlequipment components. The Permittee shall maintain a written record of theseinspections.

Minn. R. 7007.0800, subps. 4, 5, and 14

Monitoring Equipment: The Permittee shall install and maintain the necessarymonitoring equipment for measuring and recording pressure drop as required bythis permit. The monitoring equipment must be installed, in use, and properlymaintained when the monitored fabric filter is in operation.

Minn. R. 7007.0800, subp. 4

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Facility Name:

Permit Number:

05/05/15A-46

Calibrate or replace the pressure drop gauge annually, or as often as required bythe manufacturer's specifications. Maintain a written record of the calibration andany action resulting from calibration.

Minn. R. 7007.0800, subps. 2 and 14

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Facility Name:

Permit Number:

05/05/15A-47

Subject Item: CE 002 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 011 Hammermill 1 - Milling Equipment

EU 012 Hammermill 2 - Milling Equipment

EU 057 Hammermill 3 - Milling Equipment

What to do Why to do it

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for Total Particulate Matter: greater than or equal to99.0 percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for PM < 10 micron: greater than or equal to 99.0percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for PM < 2.5 micron: greater than or equal to 99.0percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Pressure Drop: greater than or equal to 0.25 inches of water column and less thanor equal to 8.0 inches of water column . A new range may be set pursuant to Minn.R. 7017.2025, subp. 3 based on the values recorded during the most recentMPCA-approved performance test where compliance was demonstrated. The newrange shall be implemented upon receipt of the Notice of Compliance lettergranting preliminary approval. The range is final upon issuance of a permitamendment incorporating the change. The Permittee shall record the pressuredrop at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Visible Emissions: The Permittee shall check the fabric filter stack (SV 002) for anyvisible emissions once each day of operation during daylight hours.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Recordkeeping of Visible Emissions and Pressure Drop. The Permittee shallrecord the time and date of each visible emission inspection and pressure dropreading, and whether or not any visible emissions were observed, and whether ornot the observed pressure drop was within the range specified in this permit

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the fabric filter in accordance with theOperation and Maintenance (O & M) Plan. The Permittee shall keep copies of theO & M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Corrective Actions: The Permittee shall take corrective action as soon as possible ifany of the following occur:- visible emissions are observed;- the recorded pressure drop is outside the required operating range; or- the fabric filter or any of its components are found during the inspections to needrepair.Corrective actions shall return the pressure drop to within the permitted range,eliminate visible emissions, and/or include completion of necessary repairsidentified during the inspection, as applicable. Corrective actions include, but arenot limited to, those outlined in the O & M Plan for the fabric filter. The Permitteeshall keep a record of the type and date of any corrective action taken for eachfilter.

Minn. R. 7007.0800, subps. 4, 5, and 14

Periodic Inspections: At least once per calendar quarter, or more frequently asrequired by the manufacturing specifications, the Permittee shall inspect the controlequipment components. The Permittee shall maintain a written record of theseinspections.

Minn. R. 7007.0800, subps. 4, 5, and 14

Monitoring Equipment: The Permittee shall install and maintain the necessarymonitoring equipment for measuring and recording pressure drop as required bythis permit. The monitoring equipment must be installed, in use, and properlymaintained when the monitored fabric filter is in operation.

Minn. R. 7007.0800, subp. 4

Calibrate or replace the pressure drop gauge annually, or as often as required bythe manufacturer's specifications. Maintain a written record of the calibration andany action resulting from calibration.

Minn. R. 7007.0800, subps. 2 and 14

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Facility Name:

Permit Number:

05/05/15A-48

Subject Item: CE 003 Packed-Gas Adsorption Column

Associated Items: EU 013 Fermenter 1; 730,000 gallons - Fermentation Equipment

EU 014 Fermenter 2; 730,000 gallons - Fermentation Equipment

EU 015 Fermenter 3; 730,000 gallons - Fermentation Equipment

EU 016 Fermenter 4; 730,000 gallons - Fermentation Equipment

EU 017 Beerwell; 985,000 gallons - Fermentation Equipment

EU 058 Fermenter 5; 730,000 gallons - Fermentation Equipment

EU 059 Fermenter 6; 730,000 gallons - Fermentation Equipment

GP 004 Fermentation Units Vented to Scrubber (SV 003/CE 003)

What to do Why to do it

OPERATIONAL REQUIREMENTS hdr

The Permittee shall operate and maintain the fermentation scrubber CE 003 so itachieves a control efficiency for Volatile Organic Compounds: greater than or equalto 98 percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Alternate limit: less than or equal to 20 ppmv VOC if the inlet concentration of VOCis less than 200 ppmv

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the fermentation scrubber CE 003 so itachieves a control efficiency for Acetaldehyde: greater than or equal to 98 percentcontrol efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the fermentation scrubber CE 003 so itachieves a control efficiency for Acrolein: greater than or equal to 98 percentcontrol efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the fermentation scrubber CE 003 so itachieves a control efficiency for Formaldehyde: greater than or equal to 98 percentcontrol efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the fermentation scrubber CE 003 so itachieves a control efficiency for Methanol: greater than or equal to 98 percentcontrol efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

Pressure Drop: greater than or equal to 2.0 inches of water column and less thanor equal to 28.0 inches of water column when fermenters have been in operation atleast 12 hours.

A new range may be set pursuant to Minn. R. 7017.2025, subp. 3 based on thevalues recorded during the most recent MPCA-approved performance test wherecompliance was demonstrated. The new range shall be implemented upon receiptof the Notice of Compliance letter granting preliminary approval. The range is finalupon issuance of a permit amendment incorporating the change. The Permitteeshall record the pressure drop at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

Water flow rate: greater than or equal to 50 gallons/minute . A new minimum maybe set pursuant to Minn. R. 7017.2025, subp. 3 based on the values recordedduring the most recent MPCA-approved performance test where compliance wasdemonstrated. The new minimum shall be implemented upon receipt of the Noticeof Compliance letter granting preliminary approval. The new minimum is final uponissuance of a permit amendment incorporating the change. The Permittee shallrecord the flowrate at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

Liquid Flow Rate: greater than or equal to 5.7 gallons/hour for the CE 003 sodiumbisulfite scrubber additive.

Title I Condition: to avoid major source threshold under40 CFR Section 63.2 and Minn. R. 7011.7000

MONITORING AND RECORDKEEPING hdr

Monitoring Equipment: The Permittee shall install and maintain the necessarymonitoring equipment for measuring and recording CE 003 scrubber water flowrate, scrubber liquid additive rate, and scrubber pressure drop. The monitoringequipment must be installed, in use, and properly maintained when CE 003 is inoperation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subp. 4(B)

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Facility Name:

Permit Number:

05/05/15A-49

Recordkeeping of CE 003 Pressure Drop, Water Flow Rate, and Scrubber LiquidAdditive Flow Rate:

Once each day the Permittee shall record the CE 003 pressure drop in inches ofwater column), water flow rate (in gallons per minute), and additive flow rate (ingallons per hour). Each record shall be signed and include the date and time ofeach reading.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4 & 5

Calibrate the gauges annually, or as often as required by the manufacturer andmaintain a written record of the calibration and any action resulting from thecalibration.

Minn. R. 7007.0800, subps. 2 and 14

Inspect monthly, or more frequently as required by the manufacturer, allcomponents that are subject to wear or plugging. Maintain a written record of theinspection and any action resulting from the inspection.

Minn. R. 7007.0800, subps. 2 and 14

The Permittee shall operate and maintain the CE 003 CO2 scrubber in accordancewith the Operation and Maintenance (O&M) Plan. The Permittee shall keep copiesof the O&M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Corrective Actions: The Permittee shall take corrective action as soon as possible ifany of the following occur:

- the water flow rate is below the required minimum;- the scrubber additive flow rate is below the required minimum;- the pressure drop is outside the required operating range;- any components are found during the inspections to need repair.

Corrective actions shall return the water flow rate, scrubber additive flow rate,and/or pressure drop to within the permitted range, and/or include completion ofnecessary repairs identified during an inspection, as applicable. Corrective actionsinclude, but are not limited to, those outlined in the O&M Plan. The Permittee shallkeep a record of the type and date of any corrective action taken.

Minn. R. 7007.0800, subps. 4, 5, and 14

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Facility Name:

Permit Number:

05/05/15A-50

Subject Item: CE 005 Thermal Oxidizer - Regenerative

Associated Items: EU 018 DDGS Dryer A (CE 006 & CE 005/SV 004 or CE 006 & CE 028/SV 005) - Dehydrator

EU 019 Mixer (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 020 Slurry Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 021 Cook Tube (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 022 Flash Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 023 Liquefaction Tank 1 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 024 Liquefaction Tank 2 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 025 Yeast Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 026 Beer Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 027 Side Stripper (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 028 Rectifier Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 029 190 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 030 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 031 200 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 032 Centrifuges (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 033 Evaporators (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 034 DDGS Dryer B (CE 007 & CE 005/SV 004 or CE 007 & CE 028/SV 005) - Dehydrator

EU 049 Regenerative Thermal Oxidizer (RTO) - Thermal Process Equipment

EU 060 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

MR 005 RTO Temperature

What to do Why to do it

OPERATING REQUIREMENTS hdr

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Volatile Organic Compounds: greater than or equal to98.0 percent destruction efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Carbon Monoxide: greater than or equal to 98.0 percentdestruction efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves acontrol efficiency for Total Particulate Matter: greater than or equal to 95.0 percentdestruction efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves acontrol efficiency for PM < 10 micron: greater than or equal to 95.0 percentdestruction efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves acontrol efficiency for PM < 2.5 micron: greater than or equal to 95.0 percent controlefficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Acetaldehyde: greater than or equal to 98.0 percentdestruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Acrolein: greater than or equal to 98.0 percent destructionefficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Formaldehyde: greater than or equal to 98.0 percentdestruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the RTO CE 005 so that it achieves adestruction efficiency for Methanol: greater than or equal to 98.0 percentdestruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-51

The Permittee shall operate and maintain the CE 005 regenerative thermal oxidizerany time that any process equipment controlled by the thermal oxidizer is inoperation. The Permittee shall document periods of non-operation of CE 005 whenprocesses normally vented to CE 005 are operating and not vented to CE 028.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

Temperature: greater than or equal to 1400 degrees F using 3-hour RollingAverage at the CE 005 combustion chamber outlet. A new minimum may be setpursuant to Minn. R. 7017.2025, subp. 3 based on the values recorded during themost recent MPCA-approved performance test where compliance wasdemonstrated. The new minimum shall be implemented upon receipt of the Noticeof Compliance letter granting preliminary approval. The limit is final upon issuanceof a permit amendment incorporating the change. If the 3-hour rolling averagetemperature is below the minimum temperature limit, the VOC emissions duringthat time shall be considered uncontrolled until the average temperature is abovethe minimum temperature limit. This shall be reported as a deviation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain CE 005 in accordance with the Operationand Maintenance (O&M) Plan. The Permittee shall keep copies of the O&M Planavailable onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Quarterly Inspections: At least once per calendar quarter, or more frequently asrequired by manufacturer's specifications, the Permittee shall inspect CE 005external system components, including but not limited to electrical systems (CE005 is not equipped with a heat exchanger). The Permittee shall maintain a writtenrecord of the inspection and any corrective actions taken resulting from theinspection.

Minn. R. 7007.0800, subps. 4, 5, & 14

Internal Inspections: The Permittee shall inspect CE 005 internal componentsincluding but not limited to the refractory, during all planned shutdowns of sufficientlength for the refractory to adequately cool for the inspection, but not less thanannually.

Minn. R. 7007.0800, subps. 4, 5, & 14

Corrective Actions: If CE 005 temperature is below the minimum specified by thispermit or if the thermal oxidizer or any of its components are found during theinspections to need repair, the Permittee shall take corrective actions as soon aspossible. Corrective actions shall return the temperature to at least the permittedminimum and/or include completion of necessary repairs identified during theinspection, as applicable. Corrective actions include, but are not limited to, thoseoutlined in the CE 005 O&M Plan. The Permittee shall keep a record of the typeand date of any corrective action taken.

Minn. R. 7007.0800, subps. 4, 5, & 14

When a shutdown or breakdown of CE 005 occurs, the Permittee shall either:

1. Stop wet cake feed to the dryers (the Permittee may continue operation of thedryers only as long as necessary to empty material already in the dryers) or,

2. Immediately vent emissions (from CE 005 Associated Items) to CE 028.

Minn. R. 7019.1000, subp. 4Minn. R. 7007.0800, subp. 2

MONITORING REQUIREMENTS hdr

Monitoring Equipment: The Permittee shall install and maintain thermocouples toconduct temperature monitoring required by this permit. The monitoring equipmentmust be installed, in use, and properly maintained whenever CE 005 operation isrequired.

Refer to subject item MR 005 for additional CE 005 RTO temperature monitoringrequirements.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subp. 4(B)

Monitoring and Recordkeeping of CE 005 Temperature:

The Permittee shall use MR 005 to hourly calculate and record the three-hourrolling average CE 005 temperature.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4 & 5

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Facility Name:

Permit Number:

05/05/15A-52

Subject Item: CE 009 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 038 Truck Load Spout (DDGS) - Loading-Unloading Equipment

EU 039 DDGS Dump Pit/Auger - Material Handling Equipment

EU 052 DDGS storage silo - Silo/Bin

EU 055 DDGS storage silo 2 - Silo/Bin

GP 001 Grain Receiving, Handling, & Storage; DDGS Handling & Loadout

What to do Why to do it

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for Total Particulate Matter: greater than or equal to99.0 percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for PM < 10 micron: greater than or equal to 99.0percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a collection efficiency for PM < 2.5 micron: greater than or equal to 99.0percent collection efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Pressure Drop: greater than or equal to 0.25 inches of water column and less thanor equal to 8.0 inches of water column . A new range may be set pursuant to Minn.R. 7017.2025, subp. 3 based on the values recorded during the most recentMPCA-approved performance test where compliance was demonstrated. The newrange shall be implemented upon receipt of the Notice of Compliance lettergranting preliminary approval. The range is final upon issuance of a permitamendment incorporating the change. The Permittee shall record the pressuredrop at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Visible Emissions: The Permittee shall check the fabric filter stack (SV008) for anyvisible emissions once each day of operation during daylight hours.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7007.0800,subp. 4

Recordkeeping of Visible Emissions and Pressure Drop. The Permittee shallrecord the time and date of each visible emission inspection and pressure dropreading, and whether or not any visible emissions were observed, and whether ornot the observed pressure drop was within the range specified in this permit

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Minn. R. 7007.0800,subp. 5

The Permittee shall operate and maintain the fabric filter in accordance with theOperation and Maintenance (O & M) Plan. The Permittee shall keep copies of theO & M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Corrective Actions: The Permittee shall take corrective action as soon as possible ifany of the following occur:- visible emissions are observed;- the recorded pressure drop is outside the required operating range; or- the fabric filter or any of its components are found during the inspections to needrepair.Corrective actions shall return the pressure drop to within the permitted range,eliminate visible emissions, and/or include completion of necessary repairsidentified during the inspection, as applicable. Corrective actions include, but arenot limited to, those outlined in the O & M Plan for the fabric filter. The Permitteeshall keep a record of the type and date of any corrective action taken for eachfilter.

Minn. R. 7007.0800, subps. 4, 5, and 14

Periodic Inspections: At least once per calendar quarter, or more frequently asrequired by the manufacturing specifications, the Permittee shall inspect the controlequipment components. The Permittee shall maintain a written record of theseinspections.

Minn. R. 7007.0800, subps. 4, 5, and 14

Monitoring Equipment: The Permittee shall install and maintain the necessarymonitoring equipment for measuring and recording pressure drop as required bythis permit. The monitoring equipment must be installed, in use, and properlymaintained when the monitored fabric filter is in operation.

Minn. R. 7007.0800, subp. 4

Calibrate or replace the pressure drop gauge annually, or as often as required bythe manufacturer's specifications. Maintain a written record of the calibration andany action resulting from calibration.

Minn. R. 7007.0800, subps. 2 and 14

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

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Facility Name:

Permit Number:

05/05/15A-53

Subject Item: CE 010 Flaring

Associated Items: EU 040 Ethanol Loading Rack - Loading-Unloading Equipment

EU 061 Loading Rack Flare (CE 010; air assisted) - Thermal Process Equipment

What to do Why to do it

EMISSION LIMITS hdr

The Permittee shall operate and maintain CE 010 flare so it achieves a controlefficiency for Volatile Organic Compounds: greater than or equal to 98.0 percentcontrol efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000

CE 010 must be designed for and operated with no visible emissions except for aperiod not to exceed a total of 5 minutes during any 2 consecutive hours.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4, 5, and 14

OPERATING REQUIREMENTS hdr

CE 010 Permitted Fuel: Liquid propane or natural gas Minn. R. 7007.0800, subp. 2

Operation Requirement: At all times, including periods of startup, shutdown, andmalfunction, owners shall maintain and operate CE 010 in a manner consistent withgood air pollution control practice for minimizing emissions. Determination ofwhether acceptable operating and maintenance procedures are being used will bebased on available information which may include, but is not limited to, monitoringresults, opacity observations, review of operating and maintenance procedures,and inspection of the source.

Minn. R. 7007.0800, subps. 2 and 14

Operation Requirement: CE 010 shall be operated at all times when emissions maybe vented to the flare.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4, 5, and 14

Operating Requirement: CE 010 shall be operated with a flame present at all times. Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4, 5, and 14

Operation Requirement: CE 010 flame presence shall be monitored using athermocouple or any other equivalent device.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subp. 4 and 5

Construction Requirement: CE 010 shall be steam-assisted, air-assisted, ornon-assisted. CE 010 is an air-assisted flare.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subp. 14

Operation Requirement: CE 010 shall be monitored to ensure that it is operatedand maintained in conformance with its design.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4, 5, and 14

Records Requirement: Keep a record of any malfunction of the flare. Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4 and 5

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Facility Name:

Permit Number:

05/05/15A-54

Recordkeeping: Maintain a file of all measurements, CMS performanceevaluations, calibration checks, adjustments and maintenance, and all otherinformation required under 40 CFR Section 60.18 in permanent form, suitable forinspection for at least two years following the date of such measurements,maintenance, and records.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4 and 5

Compliance Requirement: Reference Method 22 shall be used to determine thepresence of visible emissions. The Permittee shall determine the presence ofvisible emissions when requested by the Commissioner.

Minn. R. 7007.0800, subps. 2 and 14;Minn. R. 7017.2020, subp. 1

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

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Facility Name:

Permit Number:

05/05/15A-55

Subject Item: CE 027 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 037 Cooling Cyclone w/fabric filter (CE 027) - Cooler

What to do Why to do it

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for Total Particulate Matter: greater than or equal to99.0 percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for PM < 10 micron: greater than or equal to 99.0percent control efficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the control equipment such that itachieves a control efficiency for PM < 2.5 micron: greater than 99.0 percent controlefficiency

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Pressure Drop: greater than or equal to 0.25 inches of water column and less thanor equal to 8.0 inches of water column . A new range may be set pursuant to Minn.R. 7017.2025, subp. 3 based on the values recorded during the most recentMPCA-approved performance test where compliance was demonstrated. The newrange shall be implemented upon receipt of the Notice of Compliance lettergranting preliminary approval. The range is final upon issuance of a permitamendment incorporating the change. The Permittee shall record the pressuredrop at least once every 24 hours when in operation.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Visible Emissions: The Permittee shall check the fabric filter stack for any visibleemissions once each day of operation during daylight hours.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

Recordkeeping of Visible Emissions and Pressure Drop. Once each day, thePermittee shall observe and record CE 027 pressure drop, and determine if SV 007is emitting any visible emissions. The Permittee shall record the time and date ofeach pressure drop reading and visible emission observation, whether any visibleemissions were observed, and whether the observed pressure drop was within therange specified in this permit.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

The Permittee shall operate and maintain the fabric filter in accordance with theOperation and Maintenance (O & M) Plan. The Permittee shall keep copies of theO & M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

Corrective Actions: The Permittee shall take corrective action as soon as possible ifany of the following occur:- visible emissions are observed;- the recorded pressure drop is outside the required operating range; or- the fabric filter or any of its components are found during the inspections to needrepair.Corrective actions shall return the pressure drop to within the permitted range,eliminate visible emissions, and/or include completion of necessary repairsidentified during the inspection, as applicable. Corrective actions include, but arenot limited to, those outlined in the O & M Plan for the fabric filter. The Permitteeshall keep a record of the type and date of any corrective action taken for eachfilter.

Minn. R. 7007.0800, subps. 4, 5, and 14

Periodic Inspections: At least once per calendar quarter, or more frequently asrequired by the manufacturing specifications, the Permittee shall inspect the controlequipment components. The Permittee shall maintain a written record of theseinspections.

Minn. R. 7007.0800, subps. 4, 5, and 14

Monitoring Equipment: The Permittee shall install and maintain the necessarymonitoring equipment for measuring and recording pressure drop as required bythis permit. The monitoring equipment must be installed, in use, and properlymaintained when the monitored fabric filter is in operation.

Minn. R. 7007.0800, subp. 4

Calibrate the gauges annually, or as often as required by the manufacturer'sspecifications. Maintain a written record of the calibration and any action resultingfrom calibration.

Minn. R. 7007.0800, subps. 2 and 14

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

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Facility Name:

Permit Number:

05/05/15A-56

Subject Item: CE 028 Direct Flame Afterburner

Associated Items: EU 018 DDGS Dryer A (CE 006 & CE 005/SV 004 or CE 006 & CE 028/SV 005) - Dehydrator

EU 019 Mixer (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 020 Slurry Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 021 Cook Tube (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 022 Flash Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 023 Liquefaction Tank 1 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 024 Liquefaction Tank 2 (CE 005/SV 004 or CE 028/SV 005) - Liquefaction Equipment

EU 025 Yeast Tank (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 026 Beer Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 027 Side Stripper (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 028 Rectifier Column (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 029 190 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 030 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 031 200 Proof Condenser (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 032 Centrifuges (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 033 Evaporators (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

EU 034 DDGS Dryer B (CE 007 & CE 005/SV 004 or CE 007 & CE 028/SV 005) - Dehydrator

EU 060 Molecular Sieve (CE 005/SV 004 or CE 028/SV 005) - Distillation Equipment

GP 005 Process Units Vented to Boiler or Regenerative Thermal Oxidizer

MR 006 Direct Flame Afterburner Temperature

What to do Why to do it

OPERATING REQUIREMENTS hdr

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Volatile Organic Compounds:greater than or equal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Carbon Monoxide: greaterthan or equal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a control efficiency for Total Particulate Matter: greaterthan or equal to 95.0 percent control efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a control efficiency for PM < 10 micron: greater than orequal to 95.0 percent control efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a control efficiency for PM < 2.5 micron: greater than orequal to 95.0 percent control efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Acetaldehyde: greater thanor equal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Acrolein: greater than orequal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Formaldehyde: greater thanor equal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the direct flame afterburner (NG boiler)CE 028 so that it achieves a destruction efficiency for Methanol: greater than orequal to 98.0 percent destruction efficiency

Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000

The Permittee shall operate and maintain the CE 028 direct flame afterburner anytime that any process equipment controlled by the afterburner is in operation. ThePermittee shall document periods of non-operation of CE 028 when processesvented to CE 028 are operating and not vented to CE 005.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 & Minn. R. 7007.3000;Title I Condition: to avoid major source threshold under40 CFR Section 63.2 and Minn. R. 7011.7000

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Facility Name:

Permit Number:

05/05/15A-57

When a shutdown or breakdown of CE 028 occurs, the Permittee shall either:

1. Stop wet cake feed to the dryers (the Permittee may continue operation of thedryers only as long as necessary to empty material already in the dryers) or,

2. Immediately vent emissions (from CE 028 Associated Items) to CE 005.

Minn. R. 7019.1000, subp. 4Minn. R. 7007.0800, subp. 2

Temperature: greater than or equal to 1575 degrees F using 3-hour RollingAverage at the CE 028 combustion chamber outlet. A new minimum may be setpursuant to Minn. R. 7017.2025, subp. 3 based on the values recorded during themost recent MPCA-approved performance test where compliance wasdemonstrated. The new minimum shall be implemented upon receipt of the Noticeof Compliance letter granting preliminary approval. The limit is final upon issuanceof a permit amendment incorporating the change. If the 3-hour rolling averagetemperature is below the minimum temperature limit, the VOC used during thattime shall be considered uncontrolled until the average temperature is above theminimum temperature limit. This shall be reported as a deviation.

Title I Condition: to avoid major source threshold under40 CFR Section 52.21(b) & Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 & Minn. R. 7011.7000

Quarterly Inspections: At least once per calendar quarter, or more frequently asrequired by the manufacturer, the Permittee shall inspect CE 028 external systemcomponents, including but not limited to the heat exchanger, and electricalsystems. The Permittee shall maintain a written record of the inspection and anycorrective actions taken resulting from the inspection.

The Permittee shall inspect CE 028 internal components including, but not limitedto the refractory, during all planned shutdowns and not less than annually.

Minn. R. 7007.0800, subps. 4, 5, & 14

Corrective Actions: If the temperature is below the minimum specified by this permitor if the direct flame afterburner or any of its components are found during theinspections to need repair, the Permittee shall take corrective actions as soon aspossible. Corrective actions shall return the temperature to at least the permittedminimum and/or include completion of necessary repairs identified during theinspection, as applicable. Corrective actions include, but are not limited to, thoseoutlined in the O & M Plan for the direct flame afterburner. The Permittee shallkeep a record of the type and date of any corrective action taken.

Minn. R. 7007.0800, subps. 4, 5, & 14

The Permittee shall operate and maintain the direct flame afterburner inaccordance with the Operation and Maintenance (O & M) Plan. The Permittee shallkeep copies of the O & M Plan available onsite for use by staff and MPCA staff.

Minn. R. 7007.0800, subp. 14

MONITORING AND RECORDKEEPING hdr

Monitoring Equipment: The Permittee shall install and maintain thermocouples toconduct CE 028 temperature monitoring. The monitoring equipment must beinstalled, in use, and properly maintained whenever CE 028 is in operation.

Refer to subject item MR 006 for additional CE 028 Direct Flame Afterburnertemperature monitoring requirements.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 and 7011.7000; Minn. R. 7007.0800,subp. 4(B)

Monitoring and Recordkeeping of CE 028 Temperature:

The Permittee shall use MR 006 to hourly calculate and record the three-hourrolling average CE 028 temperature.

Title I Condition: To avoid major source threshold at 40CFR Section 52.21(b) and Minn. R. 7007.3000; Title ICondition: To avoid major source threshold under 40CFR Section 63.2 and 7011.7000; Minn. R. 7007.0800,subps. 4 & 5

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TABLE A: LIMITS AND OTHER REQUIREMENTSHeron Lake BioEnergy LLC

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Facility Name:

Permit Number:

05/05/15A-58

Subject Item: FS 001 Paved Road Requirements

What to do Why to do it

FACILITY ROAD REQUIREMENTS

The following permit conditions are based on the parameters and assumptionsused in the air disperion modeling for permit No. 0630000-005 documented inAppendix I of this permit.

hdr

Facility Road Requirements:

1. All roads must be paved with hot mix asphalt or concrete.

2. On each day of operation, the Permittee shall visually inspect all paved roadsurfaces to minimize or eliminate fugitive emissions. The facility shall maintainrecords of each inspection including the inspection date and time, whether fugitivedust was observed, any corrective actions taken and when they were taken, andwhether the corrective actions eliminated the fugitive dust.

(continued)

Minn. R. 7011.0150; Minn. R. ch. 7009

Facility Road Requirements (cont.):

3. Anytime fugitive emissions are observed on facility roads, the Permittee shallimmediately eliminate the fugitive emissions by sweeping those roads and/orapplying water or a chemical dust suppressant.

4. The Permittee shall implement and enforce a 15 miles per hour facility-widespeed limit. The Permittee shall post and maintain speed limit signage in a highlyvisible location near the facility entrance.

Minn. R. 7011.0150; Minn. R. ch. 7009

The Permittee shall follow the requirements of Appendix IV Road Dust ControlPlan. However, the FS 001 requirements supersede the Appendix IV FugitiveEmissions Control Plan requirements until the Plan is amended as required by thispermit (No. 0630005-005).

Minn. R. 7011.0150; Minn. R. ch. 7009

Fugitive Emissions: Do not cause or permit the transporting of any material in amanner which may allow avoidable amounts of particulate matter to becomeairborne. Do not cause or permit a road or a driveway to be constructed, used,repaired, or demolished without applying all such reasonable measures as may berequired to prevent particulate matter from becoming airborne.

Minn. R. 7011.0150

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Facility Name:

Permit Number:

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Subject Item: FS 004 Equipment Leaks

What to do Why to do it

STANDARDS: PUMPS hdr

Pumps in light liquid service:

Each pump in light liquid service shall be monitored monthly to detect leaks by themethods specified in 40 CFR Section 60.485(b), except as provided in 40 CFRSection 60.482-1(c) and paragraphs (d), (e), and (f).

Each pump in light liquid service shall be checked by visual inspection eachcalendar week for indications of liquids dripping from the seal.

40 CFR Section 60.482-2Minn. R. 7011.2900(A)

(b)(1) If an instrument reading of 10,000 ppm or greater is measured, a leak isdetected.

(2) If there are indications of liquids dripping from the pump seal, a leak is detected.

(c)(1) When a leak is detected, it shall be repaired as soon as practicable, but notlater than 15 calendar days after it is detected, except as provided in 40 CFRSection 60.482-9 (Delay of Repair).

(2) A first attempt at repair shall be made no later than 5 calendar days after eachleak is detected.

40 CFR Section 60.482-2(b) & (c)Minn. R. 7011.2900(A)

STANDARDS: COMPRESSORS hdr

(a) Each compressor shall be equipped with a seal system that includes a barrierfluid system that prevents leakage of VOC to the atmosphere, except as providedin 40 CFR Section 60.482-1(c) and 40 CFR Section 60.482-3(h) and (i).

40 CFR Section 60.482-3(a)Minn. R. 7011.2900(A)

(b) Each compressor seal system shall be:

(1) Operated with the barrier fluid at a pressure that is greater than the compressorstuffing box pressure; or

(2) Equipped with a barrier fluid system that is connected by a closed vent systemto a control device that complies with the requirements of 40 CFR Section60.482-10; or

(3) Equipped with a system that purges the barrier fluid into a process stream withzero VOC emissions to the atmosphere.

40 CFR Section 60.482-3(b)Minn. R. 7011.2900(A)

(c) The barrier fluid system shall be in heavy liquid service or shall not be in VOCservice.

(d) Each barrier fluid system shall be equipped with a sensor that will detect failureof the seal system, barrier fluid system, or both.

40 CFR Section 60.482-3(c) & (d)Minn. R. 7011.2900(A)

(e)(1) Each sensor shall be checked daily or shall be equipped with an audiblealarm.

(2) The owner or operator shall determine, based on design considerations andoperating experience, a criterion that indicates failure of the seal system, the barrierfluid system, or both.

40 CFR Section 60.482-3(e)Minn. R. 7011.2900(A)

(f) If the sensor indicates failure of the seal system, the barrier system, or bothbased on the criterion determined under paragraph 40 CFR Section 60.482-3(e)(2),a leak is detected.

40 CFR Section 60.482-3(f)Minn. R. 7011.2900(A)

(g)(1) When a leak is detected, it shall be repaired as soon as practicable, but notlater than 15 calendar days after it is detected except as provided in 40 CFRSection 60.482-9 (Delay of Repair).

(2) A first attempt at repair shall be made no later than 15 calendar days after it isdetected, except as provided in 40 CFR Section 60.482-9.

40 CFR Section 60.482-3(g)Minn. R. 7011.2900(A)

STANDARDS: PRESSURE RELIEF DEVICES IN GAS/VAPOR SERVICE hdr

(a) Except during pressure releases, each pressure relief device in gas/vaporservice shall be operated with no detectable emissions, as indicated by aninstrument reading of less than 500 ppm above background as determined by themethods specified in 40 CFR Section 60.485(c).

40 CFR Section 60.482-4(a)Minn. R. 7011.2900(A)

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Permit Number:

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(b)(1) After each pressure release, the pressure relief device shall be returned to acondition of no detectable emissions, as indicated by an instrument reading of lessthan 500 ppm above background, as soon as practicable, but no later than 5calendar days after the pressure release, except as provided in 40 CFR Section60.482-9 (Delay of Repair).

40 CFR Section 60.482-4(b)Minn. R. 7011.2900(A)

STANDARDS: SAMPLING CONNECTION SYSTEMS hdr

(a) Each sampling connection system shall be equipped with a closed-purged,closed-loop, or closed-vent system, except as provided in 40 CFR Section60.482-1(c).

40 CFR Section 60.482-5(a)Minn. R. 7011.2900(A)

(b) If an instrument reading of 10,000 ppm or greater is measured, a leak isdetected.

(c)(1) Any valve for which a leak is not detected for 2 successive months may bemonitored the first month of every quarter, beginning with the next quarter, until aleak is detected.

(2) If a leak is detected, the valve shall be monitored monthly until a leak is notdetected for 2 successive months.

40 CFR Section 60.482-5(b) and (c)Minn. R. 7011.2900(A)

STANDARDS: OPEN ENDED VALVES OR LINES hdr

(a)(1) Each open-ended valve or line shall be equipped with a cap, blind flange,plug, or a second valve, except as provided in 40 CFR Section 60.482-1(c).

(2) The cap, blind flange, plug, or second valve shall seal the open end at all timesexcept during operations requiring process fluid flow through the open-ended valveor line.

40 CFR Section 60.482-6(a)Minn. R. 7011.2900(A)

(b) Each open-ended valve or line equipped with a second valve shall be operatedin a manner such that the valve on the process fluid end is closed before thesecond valve is closed.

(c) When a double block and bleed system is being used, the bleed valve or linemay remain open during operations that require venting the line between the blockvalves but shall comply with paragraph (a) at all other times.

40 CFR Section 60.482-6(b) and (c)Minn. R. 7011.2900(A)

STANDARDS: VALVES hdr

(a) Each valve shall be monitored monthly to detect leaks by the methods specifiedin 40 CFR Section 60.485(b).

40 CFR Section 60.482-7(a)Minn. R. 7011.2900(A)

(b) If an instrument reading of 10,000 ppm or greater is measured, a leak isdetected.

(c)(1) Any valve for which a leak is not detected for 2 successive months may bemonitored the first month of every quarter, beginning with the next quarter, until aleak is detected.

(2) If a leak is detected, the valve shall be monitored monthly until a leak is notdetected for 2 successive months.

40 CFR Section 60.482-7(b) & (c)Minn. R. 7011.2900(A)

(d)(1) When a leak is detected, it shall be repaired as soon as practicable, but nolater than 15 calendar days after the leak is detected, except as provided in 40CFR Section 60.482-9.

(2) A first attempt at repair shall be made no later than 5 calendar days after eachleak is detected.

40 CFR Section 60.482-7(d)Minn. R. 7011.2900(A)

(e) First attempts at repair include, but are not limited to, the following bestpractices where practicable:

(1) Tightening of bonnet bolts;(2) Replacement of bonnet bolts;(3) Tightening of packing gland nuts;(4) Injection of lubricant into lubricated packing.

40 CFR Section 60.482-7(e)Minn. R. 7011.2900(A)

STANDARDS: PUMPS AND VALVES IN HEAVY LIQUID SERVICE, PRESSURERELIEF DEVICES IN LIGHT LIQUID OR HEAVY LIQUID SERVICE, ANDFLANGES AND OTHER CONNECTORS

hdr

(a) Pumps and valves in heavy liquid service, pressure relief devices in light liquidor heavy liquid service and flanges and other connectors shall be monitored within5 days by the method specified in 40 CFR Section 60.485(b) if evidence of apotential leak is found by visual, audible, olfactory, or any other detection method.

40 CFR Section 60.482-8(a)Minn. R. 7011.2900(A)

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Permit Number:

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(b) If an instrument reading of 10,000 ppm or greater is measured, a leak isdetected.

(c)(1) When a leak is detected, it shall be repaired as soon as practicable, but notlater than 15 calendar days after it is detected, except as provided in 40 CFRSection 60.4829 (Delay of Repair).

(2) A first attempt at repair shall be made no later than 5 calendar days after eachleak is detected.

40 CFR Section 60.482-8(b) and (c)Minn. R. 7011.2900(A)

(d) First attempts at repair include, but are not limited to, the best practicesdescribed under 40 CFR Section 60.482-7(e).

40 CFR Section 60.482-8(d)Minn. R. 7011.2900(A)

DELAY OF REPAIR hdr

(a) Delay of repair of equipment for which leaks have been detected will be allowedif the repair is technically infeasible without a process unit shutdown. Repair of thisequipment shall occur before the end of the next process unit shutdown.

(b) Delay of repair of equipment will be allowed for equipment which is isolatedfrom the process and which does not remain in VOC service.

40 CFR Section 60.482-9(a) and (b)Minn. R. 7011.2900(A)

(c) Delay of repair for valves will be allowed if:

(1) The owner or operator demonstrates that emissions of purged material resultingfrom the immediate repair are greater than the fugitive emissions likely to resultfrom delay of repair, and

(2) When repair procedures are affected, the purged material is collected anddestroyed or recovered in a control device complying with 40 CFR Section60.482-10.

40 CFR Section 60.482-9(c)Minn. R. 7011.2900(A)

(d) Delay of repair for pumps will be allowed if:

(1) Repair required the use of a dual mechanical seal system that includes a barrierfluid system, and

(2) Repair is completed as soon as practicable, but not later than 6 months afterthe leak was detected.

40 CFR Section 60.482-9(d)Minn. R. 7011.2900(A)

(e) Delay of repair beyond a process shutdown will be allowed for a valve, if valveassembly replacement is necessary during the process unit shutdown, valveassembly supplies have been depleted, and valve assembly supplies had beensufficiently stocked before the supplies were depleted. Delay of repair beyond thenext process unit shutdown will not be allowed unless the next process unitshutdown occurs sooner than 6 months after the first process unit shutdown.

40 CFR Section 60.482-9(e)Minn. R. 7011.2900(A)

TESTING PROCEDURES hdr

Compliance shall be determined by the methods specified in 40 CFR Section60.485.

40 CFR Section 60.486(b)Minn. R. 7011.2900(A)

RECORDKEEPING hdr

(b) When each leak is detected, the following requirements apply:

(1) A weatherproof and readily visible identification, marked with the equipmentidentification number, shall be attached to the leaking equipment.

(2) The identification on a valve may be removed after it has been monitored for 2successive months as specified in 40 CFR Section 60.482-7(c) and no leak hasbeen detected during those 2 months.

(3) The identification on equipment except on a valve may be removed after it hasbeen repaired.

40 CFR Section 60.496(b)Minn. R. 7011.2900(A)

(c) When each leak is detected the following information shall be recorded in a logand shall be kept for 2 years in a readily accessible location:

(1) The instrument and operator identification numbers and the equipmentidentification number.(2) The date the leak was detected and the dates of each attempt to repair the leak.(3) Repair methods applied in each attempt to repair the leak.(4) Above 10,000 if the maximum instrument reading measured by the methodsspecified in 40 CFR Section 60.485(a) after each repair attempt is equal to orgreater than 10,000 ppm.

40 CFR Section 60.486(c)(1)-(4)Minn. R. 7011.2900(A)

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(5) Repair delayed and the reason for the delay if a leak is not repaired within 15calendar days after discover of the leak.(6) The signature of the owner or operator whose decision it was that the repaircould not be affected without a process shutdown.(7) The expected date of successful repair of the leak if a leak is not repaired within15 days.(8) Dates of process unit shutdown that occurs while the equipment is unrepaired.(9) The date of successful repair of the leak.

40 CFR Section 60.486(c)(5)-(9)Minn. R. 7011.2900(A)

REPORTING REQUIREMENTS hdr

(a) Each owner or operator subject to the provisions of this subpart shall submitsemiannual reports to the Administrator beginning six months after the initialstartup date.

40 CFR Section 60.487(a)Minn. R. 7011.2900(A)

(b) The initial semiannual report to the Administrator shall include the followinginformation:

(1) Process unit identification,(2) Number of valves subject to the requirements of 40 CFR Section 60.482-7,(3) Number of pumps subject to the requirements of 40 CFR Section 60.482-2,(4) Number of compressors subject to the requirements of 40 CFR Section60.482-3.

40 CFR Section 60.487(b)Minn. R. 7011.2900(A)

(c) All semiannual reports to the Administrator shall include the followinginformation, summarized from the information in 40 CFR Section 60.486:

(1) Process unit identification,(2) For each month during the semiannual reporting period, (i) Number of valves for which leaks were detected as described in 40 CFRSection 60.482(7)(b) or 40 CFR Section 60.483-2. (ii) Number of valves for which leaks were not repaired as required in 40 CFRSection 60.482-7(d)(1), (iii) Number of pumps for which leaks were detected as described in 40 CFRSection 60.482-2(b) and (d)(6)(i), (iv) Number of pumps for which leaks were not repaired as required in 40 CFRSection 60.482-2(c)(1) and (d)(6)(ii),

40 CFR Section 60.487(c)(1) and (2)(i)-(2)(iv)Minn. R. 7011.2900(A)

(v) Number of compressors for which leaks were detected as described in 40CFR Section 60.482-3(f), (vi) Number of compressors for which leaks were not repaired as required in 40CFR Section 60.482-3(g)(1), (vii) The facts that explain each delay of repair and, where appropriate, why aprocess unit shutdown was technically infeasible.

40 CFR Section 60.487(c)(2)(v)-(vii)Minn. R. 7011.2900(A)

(3) Dates of process unit shutdowns which occurred within the semiannualreporting period.(4) Revisions to items reported according to paragraph (b) if changes haveoccurred since the initial report or subsequent revisions to the initial report.

40 CFR Section 60.487(c)(3) and (4)Minn. R. 7011.2900(A)

(e) Report the results of all performance tests in accordance with 40 CFR Section60.8. The provisions of 40 CFR Section 60.8(d) do not apply to affected facilitiessubject to the provisions of this subpart except that an owner or operator mustnotify the Administrator of the schedule for the initial performance tests at least 30days before the initial performance tests.

40 CFR Section 60.487(e)Minn. R. 7011.2900(A)

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Facility Name:

Permit Number:

05/05/15A-63

Subject Item: FS 007 Ethanol Loadout (Rail) - Material Handling/Transfer/Storage

What to do Why to do it

All rail cars must be dedicated fleet (carry only ethanol and placarded as ethanol).No loadout controls are required for dedicated fleet rail cars.

Emissions from loadout to rail cars may be vented to CE 010. Refer to CE 010 forCE 010 applicable requirements.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000

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Facility Name:

Permit Number:

05/05/15A-64

Subject Item: MR 001 NOx

Associated Items: CM 001

EU 035 NG-Fired Boiler (Direct Flame Afterburner CE 028) - Boiler

What to do Why to do it

The Permittee shall install, calibrate, maintain, and operate a continuous monitoringsystem for measuring nitrogen oxides emissions discharged to the atmosphere andrecord the output of the system.

40 CFR Section 60.48b(a)Minn. R. 7011.0565

CEMS Monitor Design: Each CEMS shall be designed to complete a minimum ofone cycle of sampling, analyzing, and data recording in each 15-minute period.

40 CFR Section 60.13(e)(2)Minn. R. 7017.1010

Continuous Operation: CEMS must be operated and data recorded during allperiods of emission unit operation including periods of emission unit start-up,shutdown, or malfunction except for periods of acceptable monitor downtime. Thisrequirement applies whether or not a numerical emission limit applies during theseperiods. A CEMS must not be bypassed except in emergencies where failure tobypass would endanger human health, safety, or plant equipment.

40 CFR Section 60.13(e),Minn. R. 7017.1090, subp. 1Minn. R. 7017.1010

QA Plan: Develop and implement a written quality assurance plan that coverseach CEMS. The plan shall be on site and available for inspection within 30 daysafter monitor certification. The plan shall contain all of the information required by40 CFR pt. 60, Appendix F, Section 3.

Minn. R. 7017.1170, subp. 2;40 CFR pt. 60, App. F; section 3

CEMS QA/QC: The Permittee shall operate, calibrate, and maintain each CEMSaccording to the QA/QC procedures in 40 CFR pt. 60, Appendix F as amended andmaintain a written QA/QC program available in a form suitable for inspection.

40 CFR pt. 60, Appendix F;40 CFR Section 60.13(a)Minn. R. 7017.1010

CEMS Daily Calibration Drift Check: Permittees must automatically check the zero(low level value between 0 and 20 percent of span value) and span (50 to 100percent of span value) calibration drifts at least once daily. The zero and spanmust, at a minimum, be adjusted whenever the drift exceeds two times the limitspecified in 40 CFR pt. 60, Appendix B. 40 CFR pt. 60, Appendix F shall be used todetermine out-of-control periods for CEMS.

40 CFR pt. 60, Appendix F, section 4.1;40 CFR Section 60.13(d)(1) regarding CEMS;Minn. R. 7017.1170, subp. 3Minn. R. 7017.1010

Cylinder Gas Audit: due before end of each calendar quarter following CEMcertification test. A CGA is not required during any calendar quarter in which aRATA was performed.

40 CFR pt. 60, Appendix F, section 5.1.2; Minn. R.7017.1170, subp. 4

CEMS Relative Accuracy Test Audit (RATA): due before end of each year followingCEM certification test. Follow the procedures in 40 CFR pt. 60, Appendix F.

40 CFR pt. 60, Appendix F, section 5.1.1; Minn. R.7017.1170, subp. 5

Relative Accuracy Test Audit (RATA) Notification: due 30 days before CEMsRelative Accuracy Test Audit (RATA)

Minn. R. 7017.1180, subp. 2

Monitoring Data: Reduce all NOx continuous monitoring systems data to 1-houraverages, in accordance with 40 CFR Section 60.13(h). 1-hour averages shall becomputed from four or more data points equally spaced over each 1-hour period.

40 CFR Section 60.13(h)(2)Minn. R. 7017.1010

The procedures under 40 CFR Section 60.13 shall be followed for installation,evaluation, and operation of the CEMS.

(1) All CEMS shall be operated in accordance with the applicable procedures underPerformance Specifications 1, 2, and 3 (appendix B).(2) Quarterly accuracy determinations and daily calibration drift tests shall beperformed in accordance with Procedure 1 (appendix F).

40 CFR Section 60.47b(e)Minn. R. 7011.0565

As an alternative to meeting the requirements of requirements of 40 CFR Section60.47b paragraphs (e)(1) and (e)(2), the Permittee may elect to implement thefollowing alternative data accuracy assessment procedures:

(i) if the NOx CEMS span value exceeds 100 ppm, the NOx CEMS daily calibrationerror test and calibration adjustment procedures described in sections 2.1.1 and2.1.3 of appendix B to pt. 75 may be followed instead of the calibration drift (CD)assessment procedures in Procedure 1, section 4.1 of appendix F to pt. 60.

(ii) if the NOx CEMS span value exceeds 30 ppm, the NOx CEMS quarterlylinearity checks may be performed in accordance with section 2.2.1 of appendix Bto pt. 75, instead of performing the cylinder gas audits (CGAs) described inProcedure 1, section 5.1.2 of appendix F to pt. 60.

(cont. below)

40 CFR Section 60.47b(e)(4)(i) and (ii)Minn. R. 7011.0565

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(cont. from above)

If this option is selected: The frequency of the linearity checks shall be as specifiedin section 2.2.1 of appendix B to pt. 75; the applicable linearity specifications insection 3.2 of appendix A to pt. 75 shall be met; the data validation andout-of-control criteria in section 2.2.3 of appendix B to pt. 75 shall be followedinstead of the excessive audit inaccuracy and out-of-control criteria in Procedure 1,section 5.2 of appendix F to pt. 60; and the grace period provisions in section 2.2.4of appendix B to pt. 75 shall apply. For the purposes of data validation under 40CFR pt. 60, subp. Db, the cylinder gas audits described in Procedure 1, section5.1.2 of appendix F to pt. 60 shall be performed if the NOx span value is less thanor equal to 30 ppm; and

(cont. below)

40 CFR Section 60.47b(e)(4)(ii)Minn. R. 7011.0565

(cont. from above)

(iii) The NOx CEMS RATAs may be performed in accordance with section 2.3 ofappendix B to pt. 75 instead of following the procedures described in Procedure 1,section 5.1.1 of appendix F to pt. 60. If this option is selected: The frequency ofeach RATA shall be as specified in section 2.3.1 of appendix B to pt. 75; theapplicable relative accuracy specifications shown in Figure 2 in appendix B to pt.75 shall be met; the data validation and out-of-control criteria in section 2.3.2 ofappendix B to pt. 75 shall be followed instead of the excessive audit inaccuracyand out-of-control criteria in Procedure 1, section 5.2 of appendix F to pt. 60; andthe grace period provisions in section 2.3.3 of appendix B to pt. 75 shall apply.

(cont. below)

40 CFR Section 60.47b(e)(4)(iii)Minn. R. 7011.0565

(cont. from above)

For the purposes of data validation under pt. 60, subp. Db, the relative accuracyspecification in section 13.2 of Performance Specification 2 in appendix B to pt. 60shall be met on a lb/MMBtu basis for NOx when the average NOx emission ratemeasured by the reference method during the RATA is less than 0.100 lb/MMBtu.

40 CFR Section 60.47b(e)(4)(iii)Minn. R. 7011.0565

The NOx CEMS shall be operated and data recorded during all periods of EU 035operation except for CEMS breakdowns and repairs. Data shall be recorded duringcalibration checks, and zero and span adjustments.

The one-hour average NOx emission rates measured by the NOx CEMS shall beexpressed as lb/million Btu heat input and shall be used to calculate the averageemission rates. The one-hour averages shall be calculated using at least two datapoints for each one-hour average.

The procedures under 40 CFR Section 60.13 shall be followed for installation,evaluation, and operation of the NOx CEMS. The span value for measuringnitrogen oxides shall be 500 ppm.

As an alternative to meeting the requirements of 40 CFR Section 60.48b(e)(2)(i),the Permittee may elect to use the NOx span values determined according tosection 2.1.2 in appendix A to pt. 75, and such span values shall be rounded offaccording to section 2.1.2 in appendix A to pt.75.

40 CFR Section 60.48b(c), (d), and (e)Minn. R. 7011.0565

When nitrogen oxides emission data are not obtained because of continuousmonitoring system breakdowns, repairs, calibration checks and zero and spanadjustments, emission data will be obtained by using standby monitoring systems,or other approved reference methods to provide emission data for a minimum of 75percent of the operating hours in each steam generating unit operating day, in atleast 22 out of 30 successive steam generating unit operating days.

40 CFR Section 60.48b(f)Minn. R. 7011.0565

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Facility Name:

Permit Number:

05/05/15A-66

Subject Item: MR 005 RTO Temperature

Associated Items: CE 005 Thermal Oxidizer - Regenerative

What to do Why to do it

Monitoring Equipment: The Permittee shall install and maintain thermocouples toconduct temperature monitoring of the CE 005 firebox. The monitoring equipmentmust be installed, in use, and properly maintained whenever CE 005 operation isrequired.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subp. 4(B)

The Permittee shall maintain a continuous hard copy readout or computer disk fileof the RTO firebox temperature readings and hourly calculated three-hour rollingaverage temperatures.

Title I Condition: 1990 CAAA; Title I Condition: Toavoid major source threshold under 40 CFR Section52.21 and Minn. R. 7007.3000; Title I Condition: Toavoid major source threshold under 40 CFR Section63.2 and Minn. R. 7011.7000; Minn. R. 7007.0800,subps. 4 & 5

The Permittee shall maintain and operate a thermocouple monitoring device thatcontinuously indicates and records the CE 005 combustion chamber temperature.The monitoring device shall have a margin of error less than the greater of +/- 0.75percent of the temperature being measured or +/- 2.5 degrees Celsius. Therecording device shall also calculate the three-hour rolling average combustionchamber temperature.

Minn. R. 7007.0800, subps. 4 & 5

Daily Monitoring: The Permittee shall check the MR 005 temperature readoutdevice at least once each operating day to verify that it is working and thattemperature is being recorded properly.

Minn. R. 7007.0800, subps. 4 & 5

Annual Calibration: The Permittee shall calibrate or replace temperature monitorMR 005 at least annually and shall maintain a written record of the calibration andany action taken from the calibration.

Minn. R. 7007.0800, subps. 4, 5, & 14

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Facility Name:

Permit Number:

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Subject Item: MR 006 Direct Flame Afterburner Temperature

Associated Items: CE 028 Direct Flame Afterburner

What to do Why to do it

Monitoring Equipment: The Permittee shall install and maintain thermocouples toconduct temperature monitoring of the CE 028 firebox. The monitoring equipmentmust be installed, in use, and properly maintained whenever CE 028 operation isrequired.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000;Minn. R. 7007.0800, subp. 4(B)

The Permittee shall maintain a continuous hard copy readout or computer disk fileof the Direct Flame Afterburner temperature readings and hourly calculatedthree-hour rolling average temperatures.

Title I Condition: To avoid major source thresholdunder 40 CFR Section 52.21 and Minn. R. 7007.3000;Title I Condition: To avoid major source thresholdunder 40 CFR Section 63.2 and Minn. R. 7011.7000;Minn. R. 7007.0800, subps. 4 & 5

The Permittee shall maintain and operate a thermocouple monitoring device thatcontinuously indicates and records the CE 028 combustion chamber temperature.The monitoring device shall have a margin of error less than the greater of +/- 0.75percent of the temperature being measured or +/- 2.5 degrees Celsius. Therecording device shall also hourly calculate the three-hour rolling averagecombustion chamber temperature.

Minn. R. 7007.0800, subps. 4 & 5

Daily Monitoring: The Permittee shall check the MR 006 temperature readoutdevice at least once each operating day to verify that it is working and thattemperature is being recorded properly.

Minn. R. 7007.0800, subps. 4 & 5

Annual Calibration: The Permittee shall calibrate or replace temperature monitorMR 006 at least annually and shall maintain a written record of the calibration andany action taken from the calibration.

Minn. R. 7007.0800, subps. 4, 5, & 14

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TABLE B: SUBMITTALSFacility Name: Heron Lake BioEnergy LLC

Permit Number: 06300025 - 005

05/05/15B-1

Also, where required by an applicable rule or permit condition, send to the Permit Document Coordinator notices of:- accumulated insignificant activities,- installation of control equipment,- replacement of an emissions unit, and- changes that contravene a permit term.

Send submittals that are required to be submitted to the U.S. EPA regional office to:

Chief Air Enforcement Air and Radiation Branch EPA Region V 77 West Jackson Boulevard Chicago, Illinois 60604

Each submittal must be postmarked or received by the date specified in the applicable Table. Those submittals required by parts7007.0100 to 7007.1850 must be certified by a responsible official, defined in Minn. R. 7007.0100, subp. 21. Other submittals shallbe certified as appropriate if certification is required by an applicable rule or permit condition.

Send submittals that are required by the Acid Rain Program to:

U.S. Environmental Protection Agency Clean Air Markets Division 1200 Pennsylvania Avenue NW (6204N) Washington, D.C. 20460

Table B lists most of the submittals required by this permit. Please note that some submittal requirements may appear in Table Aor, if applicable, within a compliance schedule located in Table C. Table B is divided into two sections in order to separately listone-time only and recurrent submittal requirements.

Send any application for a permit or permit amendment to:

Fiscal Services Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4194

Unless another person is identified in the applicable Table, send all other submittals to:

AQ Compliance Tracking Coordinator Industrial Division Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4194

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TABLE B: ONE TIME SUBMITTALS OR NOTIFICATIONSFacility Name: Heron Lake BioEnergy LLC

Permit Number: 06300025 - 005

05/05/15B-2

What to send When to send Portion of Facility Affected

Application for Permit Reissuance due 180 days before expiration of ExistingPermit

Total Facility

Fugitive Emissions Control Plan due 60 days after Permit Issuance. Thissubmittal is a revised Fugitive EmissionsControl Plan that reflects the paved roadfugitive dust requirements in subject item FS001. The Permittee shall implement therequirements in Table A subject item FS 001in place of the existing Appendix IV FugitiveEmissions Control Plan, until the existing planis amended.

FS001

Testing Frequency Plan due 60 days after Performance Test for EU035 CO emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 HAP emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 PM emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 PM10 emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 PM2.5 emissions. The plan shall specifya testing frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 SO2 emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

Testing Frequency Plan due 60 days after Performance Test for EU035 VOC emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

EU035

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TABLE B: ONE TIME SUBMITTALS OR NOTIFICATIONSFacility Name: Heron Lake BioEnergy LLC

Permit Number: 06300025 - 005

05/05/15B-3

Testing Frequency Plan due 60 days after Performance Test for SV004 SO2 emissions. The plan shall specify atesting frequency based on the testperformance test results and MPCA guidance.Future performance tests at 12-month,36-month, or 60-month intervals, or asapplicable, shall be required upon writtenapproval of the plan by the MPCA.

SV004

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TABLE B: RECURRENT SUBMITTALSFacility Name: Heron Lake BioEnergy LLC

Permit Number: 06300025 - 005

05/05/15B-4

What to send When to send Portion of Facility Affected

Cylinder Gas Audit (CGA) Results Summary due 30 days after end of each calendarquarter starting 12/16/2010

MR001

Excess Emissions/Downtime Reports (EER's) due 30 days after end of each calendarquarter following Initial Startup of the Monitor.Submit Deviations Reporting Form DRF-1 asamended. The EER shall indicate all periodsof monitor bypass and all periods ofexceedances of the limit includingexceedances allowed by an applicablestandard, i.e. during startup, shutdown, andmalfunctions. The EER must be submittedeven if there were no excess emissions,downtime or bypasses during the quarter.

EU035

Relative Accuracy Test Audit (RATA) ResultsSummary

due 30 days after end of each calendarquarter starting 12/16/2010

MR001

Report due 31 days after end of each calendarhalf-year starting 09/05/2007 that includes theinformation specified in 40 CFR Section60.487. The required information issummarized in Subject Item FS 004 of thispermit.

FS004

Semiannual Deviations Report due 30 days after end of each calendarhalf-year starting 11/10/2005. The firstsemiannual report submitted by the Permitteeshall cover the calendar half-year in which thepermit is issued. The first report of eachcalendar year covers January 1 - June 30.The second report of each calendar yearcovers July 1 - December 31. If no deviationshave occured, the Permittee shall submit thereport stating no deviations.

Total Facility

Annual Report due 31 days after end of each year followingPermit Issuance.

The Permittee shall submit an annual reportby January 31st that describes the changesmade at the facility during the previouscalendar year as authorized by this permit.The report shall be submitted using currentMPCA air permit application forms. The reportshall include the emission unit, stack/vent,group, and control equipment data for anynew, modified, or replaced emission units,and the results of any required performancetesting due to the new, modifed, or replacedemission units. The report shall include the12-month rolling sum ethanol production foreach month in the previous calendar year.This Annual Report shall be submitted withthe annual Compliance Certification listed inTable B.

As part of the Annual Report, the Permitteeshall verify and certify that the facility hasmaintained minor source status for NewSource Review and 40 CFR pt. 63.

Total Facility

Compliance Certification due 31 days after end of each calendar yearstarting 11/10/2005 (for the previous calendaryear). Submit the certification to theCommissioner on a form approved by theCommissioner. This certification covers alldeviations experienced during the previouscalendar year.

Total Facility

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005 APPENDIX I: Modeling Data Dispersion Modeling Parameters

UTM Coordinates Emission Rates

(g/s) Modeled

Height Modeled

Temp

Modeled Exit

velocity Modeled diameter

Source X Y

PM10

(24-hr, annual,

increment)

PM2.5

(24-hr)

SO2

(1-hr, 3-hr, 24-hr, annual)

NOX

(1-hr & annual)

CO (1-hr & 8-hr) (meters) (˚ Kelvin) (m/sec) (meters)

SV 001 316060 4853024 0.1685 0.1685 ----- ----- ----- 48.77 293.15 18.76 1.12SV 002 316037 4853013 0.1188 0.1188 ----- ----- ----- 48.77 293.15 17.74 0.97SV 003 315960 4853071 0.0058 0.0058 ----- ----- ----- 31.7 293.15 9.7 0.61SV 004 316014 4852934 0.403 0.403 0.958 0.289 1.431 38.1 491.48 24.8 1.32SV 005 315867 4852934 1.0332 1.0332 0.974 2.65 3.32 45.72 491.48 21.38 2.51SV 007 316053 4852947 0.121 0.121 ----- ----- ----- 41.15 293.15 20.12 0.91SV 008 316078 4852952 0.0454 0.0454 ----- ----- ----- 12.19 293.15 7.55 0.91SV 009 315950 4853172 ----- ----- ----- 0.109 0.579 10.67 970.37 4.02 2.29Cell A 316018 4852841 0.0118 0.0118 ----- ----- ----- 10.06 302.59 10.78 5.49Cell B 316026 4852843 0.0118 0.0118 ----- ----- ----- 10.06 302.59 10.78 5.49Cell C 316035 4852845 0.0118 0.0118 ----- ----- ----- 10.06 302.59 10.78 5.49Cell D 316043 4852847 0.0118 0.0118 ----- ----- ----- 10.06 302.59 10.78 5.49SV 017 315991 4852826 0.0333 0.0333 0.075599 0.483 0.216 2.44 683.15 64.81 0.127SV 020 315646 4853068 0.0743 0.0743 0.0675 1.05 0.226 2.74 735.93 71.33 0.127EU 054 315969 4852941 0.02646 0.02646 ----- 0.14364 1.8912 1.52 927.59 19.02 0.15

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005 APPENDIX I: Modeling Data Figure 1 – Heron Lake BioEnergy Road Segments A through M

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

APPENDIX I: Modeling Data Figure 2 Fence Diagram

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005 APPENDIX III: Insignificant Activities

Minn. R. 7007.1300,

subp. Activity Description

Applicable Requirement

3(A) Fuel use: space heaters fueled by natural gas or propane. Minn. R. 7011.0610 3(G) The Facility has a product testing laboratory. Minn. R. 7011.0715 3(H)(3) Welding Equipment for plant maintenance Minn. R. 7011.0715

3(H)(4) Normal-scale office equipment will be present in the facility office.

Minn. R. 7011.0715

3(I) Dry Fractionation System for Corn Oil with potential VOC emissions less than 2000 lb/yr

Minn. R. 7011.0715

3(K) Infrequent use of spray paint equipment for routine housekeeping or plant upkeep activities not associated with primary production processes at the stationary source.

Minn. R. 7011.0715

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005 APPENDIX IV: Dust Control Plan Heron Lake BioEnergy (HLBE) has paved all facility roads as a dust control measure. Maintenance of the facility roads to ensure that silt buildup on the paved roads does not generate unnecessary fugitive dust emissions is part of the HLBE fugitive dust control plan. HLBE will comply with the monitoring and recordkeeping provisions set forth below. Maintenance Parameter Set Point/Range Frequency Silt/Dust/Debris buildup on facility roadways

Sweeping of facility roadways with municipal street-sweeper or equivalent

Weekly, except as allowed below

Exceptions to Road Sweeping Schedule Scheduled sweeping is not required when the facility roadway is predominantly snow covered, or wet due to precipitation. Sweeping is not required when severe weather of any description makes the task infeasible, such as lightning, severe high winds, tornado warning, etc. Water application will not be used as part of the sweeping process when the temperature is below 33°F. Action HLBE has determined that sweeping equipment operated by the municipality of Heron Lake, Minnesota can be obtained for sweeping HLBE facility roads. HLBE will obtain use of such equipment or equivalent to maintain facility roads. In addition, the requirements to clean up grain fines or dust spilled outdoors anywhere it may accumulate found in the SWP3 storm water plan will be followed to avoid potential for tracking this material onto the roadway. If silt, debris, or loose material is observed being deposited onto the roadway from an identifiable source, action will be taken to prevent the phenomena from occurring. Recordkeeping Personnel will record roadway sweeping data including but not limited to: Date and time of sweeping, name of responsible party, and description of areas that were swept. Documentation of corrective actions taken to prevent deposition of silt/dust/debris onto the roadways will be generated and kept for record. Any deviation of sweeping frequency and range shall be recorded.

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

APPENDIX V: HAP And Organic Compounds Testing

When conducting HAP and VOC performance testing on SV 003, SV 004, SV 007, and EU 035, the Permittee must test for the following compounds:

a. acetaldehyde

b. acetic acid

c. acrolein

d. ethanol

e. ethyl acetate

f. formaldehyde

g. isoamyl alcohol

h. methanol

Additional chemicals may be required by the MPCA Performance Test Coordinator.

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

APPENDIX VI: Diesel Idling Emission Prevention Plan

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

APPENDIX VII: Stack Test Methods and Parameter Recording Requirements

1The MPCA may approve other methods when appropriate

Emission Source Pollutant Test Method(s)1 Process Parameters APCE Parameters SV 001 Grain Receiving & Handling

PM PM10 PM2.5

5 & 202 5 & 202 or 201A & 202 5 & 202 or 201A & 202

Grain receiving rate (tph) CE 001 Fabric Filter Pressure drop (in. w.c.)

SV 002 Hammer Mills

PM PM10 PM2.5

5 & 202 5 & 202 or 201A & 202 5 & 202 or 201A & 202

hammer milling rate (tph) CE 002 Fabric Filter Pressure drop (in. w.c.)

SV 003 CO2 Fermentation Scrubber

VOC HAPs species

18 or 25A or 320 18 or 320

Mash input from a liquefaction tank to a fermenter (gpm)

CE 003 CO2 Scrubber Pressure drop (in. w.c.), water flow rate (gpm), additive flow rate (gph)

SV 004 RTO CE 005 AND SV 005/EU 035 (CE 028) Boiler

PM PM10 PM2.5

SO2 NOX CO VOC HAPs species

5 & 202 5 & 202 or 201A & 202 5 & 202 or 201A & 202 6C 7E 10 18 or 25A or 320 18 or 320

Total estimated DDGS output (tph); Beer flow rate (gpm) from beer well to beer column (These are listed under GP 005) DDGS Dryers Exhaust Gas Temperature (EU 018 and EU 034)

CE 005 RTO temperature (˚F) EU 035/CE 028 firebox temperature (˚F)

SV 007 DDGS Cooler

PM PM10 PM2.5

VOC HAPs species

5 & 202 5 & 202 or 201A & 202 5 & 202 or 201A & 202 18 or 25A or 320 18 or 320

DDGS cooling rate (tph) CE 027 Fabric Filter pressure drop (in. w.c.)

SV 008 DDGS Loadout Baghouse (CE 009)

PM PM10 PM2.5

5 & 202 5 & 202 or 201A & 202 5 & 202 or 201A & 202

DDGS Loading rate (tph) CE 009 Fabric Filter Pressure drop (in. w.c.)

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

APPENDIX VIII: Equipment Inventory

EMISSION UNIT DATA (part A) (Arranged by stack/vent ID Number)

Emission Unit ID No.

SV ID No(s).

Relation Type

(Main, Bypass, Parallel)

Control Equip ID No.

Emission Unit Operator’s Description Manufacturer Model No.

EU 001 SV 001 M CE 001 Truck Receiving 1 Schlagel Inc S/N 158514-1 EU 002 SV 001 M CE 001 Truck Receiving 2 Schlagel Inc S/N 158513-1 EU 003 SV 001 M CE 001 Grain Elevator 1 Schlagel Inc 42208 EU 004 SV 001 M CE 001 Conveyor Schlagel Inc 1214 EU 005 SV 001 M CE 001 Grain Bin 1 McCormic Inc Custom EU 006 SV 001 M CE 001 Grain Bin 2 McCormic Inc Custom EU 007 SV 001 M CE 001 Grain Day Bin (scalping bin) McCormic Inc Custom EU 008 SV 001 M CE 001 Grain Elevator 2 Schlagel Inc 42208 EU 009 SV 001 M CE 001 Grain Day Bin (grinding bin) McCormic Inc Custom EU 010 SV 001 M CE 001 Hammermill Feed Conveyors Schlagel Inc 1214

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part A) (Arranged by stack/vent ID Number)

Emission Unit ID No.

SV ID No(s).

Relation Type

(Main, Bypass, Parallel)

Control Equip ID No.

Emission Unit Operator’s Description Manufacturer Model No.

EU 011 SV 002 M CE 002 Hammermill 1 Champion HRF48 EU 012 SV 002 M CE 002 Hammermill 2 Champion HRF48 EU 057 SV 002 M CE 002 Hammermill 3 TBD TBD

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part A) (Arranged by stack/vent ID Number)

Emission Unit ID No.

SV ID No(s).

Relation Type

(Main, Bypass, Parallel)

Control Equip ID No.

Emission Unit Operator’s Description Manufacturer Model No.

EU 013 SV 003 M CE 003 Fermenter 1; 730,000 gallons WINBCO S/N 06998C EU 014 SV 003 M CE 003 Fermenter 2; 730,000 gallons WINBCO S/N 06998D EU 015 SV 003 M CE 003 Fermenter 3; 730,000 gallons WINBCO S/N 06998A EU 016 SV 003 M CE 003 Fermenter 4; 730,000 gallons WINBCO S/N 06998B EU 017 SV 003 M CE 003 Beerwell; 985,000 gallons WINBCO S/N 06999 EU 058 SV 003 M CE 003 Fermenter 5; 730,000 gallons TBD TBD EU 059 SV 003 M CE 003 Fermenter 6; 730,000 gallons TBD TBD

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part A) (Arranged by stack/vent ID Number)

Emission Unit ID No.

SV ID No(s).

Relation Type

(Main, Bypass, Parallel)

Control Equip ID No.

Emission Unit Operator’s Description Manufacturer Model No.

EU 038 SV 008 M CE 009 Truck Load Spout (DDGS) T&G Products S/N XR255 EU 039 SV 008 M CE 009 DDGS Dump Pit/Auger Schlagel Inc 2020 EU 052 SV 008 M CE 009 DDGS Storage Silo McCormick Construction Custom EU 055 SV 008 M CE 009 DDGS Storage Silo McCormick Construction Custom

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part B) (Arranged by stack/vent ID Number)

Maximum Design Capacity Emission Unit ID

No.

Stack/vent Maximum Design

Capacity Material Units –

numerator Units –

denominator

Commence Construction Date

(MM/DD/YY)

Initial Startup Date (MM/DD/YY)

EU 001 SV 001 7,500 Grain Bushels Hr 10/01/2005 09/21/2007 EU 002 SV 001 7,500 Grain Bushels Hr 10/01/2005 09/21/2007 EU 003 SV 001 15,000 Grain Bushels Hr 10/01/2005 09/21/2007 EU 004 SV 001 15,000 Grain Bushels Hr 10/01/2005 09/21/2007 EU 005 SV 001 250,000 Grain Bushels NA 10/01/2005 09/21/2007 EU 006 SV 001 250,000 Grain Bushels NA 10/01/2005 09/21/2007 EU 007 SV 001 20,000 Grain Bushels NA 10/01/2005 09/21/2007 EU 008 SV 001 15,000 Grain Bushels Hr 10/01/2005 09/21/2007 EU 009 SV 001 5,000 Grain Bushels Hr 10/01/2005 09/21/2007 EU 010 SV 001 15,000 Grain Bushels Hr 10/01/2005 09/21/2007

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part B) (Arranged by stack/vent ID Number)

Maximum Design Capacity Emission Unit ID

No.

Stack/vent Maximum Design

Capacity Material Units –

numerator Units –

denominator

Commence Construction Date

(MM/DD/YY)

Initial Startup Date (MM/DD/YY)

EU 011 SV 002 1300 Grain Bushels Hr 10/01/2005 09/21/2007 EU 012 SV 002 1300 Grain Bushels Hr 10/01/2005 09/21/2007 EU 057 SV 002 1300 Grain Bushels Hr TBD TBD

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part B) (Arranged by stack/vent ID Number)

Maximum Design Capacity Emission Unit ID

No.

Stack/vent Maximum Design

Capacity Material Units –

numerator Units –

denominator

Commence Construction Date

(MM/DD/YY)

Initial Startup Date (MM/DD/YY)

EU 013 SV 003 730,000 Mash Gallons NA 10/01/2005 09/21/2007 EU 014 SV 003 730,000 Mash Gallons NA 10/01/2005 09/21/2007 EU 015 SV 003 730,000 Mash Gallons NA 10/01/2005 09/21/2007 EU 016 SV 003 730,000 Mash Gallons NA 10/01/2005 09/21/2007 EU 017 SV 003 985,000 Mash Gallons NA 10/01/2005 09/21/2007 EU 058 SV 003 730,000 Mash Gallons NA TBD TBD EU 059 SV 003 730,000 Mash Gallons NA TBD TBD

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APPENDICES Facility Name: Heron Lake BioEnergy LLC Permit Number: 06300025-005

EMISSION UNIT DATA (part B) (Arranged by stack/vent ID Number)

Maximum Design Capacity Emission Unit ID

No.

Stack/vent Maximum Design

Capacity Material Units –

numerator Units –

denominator

Commence Construction Date

(MM/DD/YY)

Initial Startup Date (MM/DD/YY)

EU 038 SV 008 20,000 Grain Bushels Hr 10/01/2005 09/21/2007 EU 039 SV 008 22 DDGS Tons Hr 10/01/2005 09/21/2007 EU 052 SV 008 4000 DDGS Tons 10/01/2005 10/01/2006 EU 055 SV 008 4000 DDGS Tons 10/01/2005 10/01/2006