DRAFT AIR EMISSION PERMIT NO. 13700073 006 Major …

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

AIR EMISSION PERMIT NO. 13700073‐006 Major Amendment

IS ISSUED TO

ME Global Inc.

ME Global Inc./Elecmetal Duluth

200 East Carterett Street Duluth, St. Louis County, Minnesota 55808

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. 13700073‐005 and authorizes the Permittee to operate the stationary source at the address listed above unless otherwise noted in Table A. The Permittee must comply with all the conditions of the permit. Any changes or modifications to the stationary source must be performed in compliance with Minn. R. 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: State; Limits to Avoid Pt 70/Limits to Avoid NSR

Operating Permit Issue Date: May 23, 2002

Major Amendment Issue Date: < >

Expiration Date: Permit does not expire – Title I Conditions do not expire.

Don Smith, P.E., Manager Air Quality Permits Section Industrial Division for John Linc Stine Commissioner Minnesota Pollution Control Agency

Permit Applications Table

Permit Type Application Date Permit Action

Total Facility Operating Permit 06/15/1995; updated 05/01/1998 001

Major Amendment 07/26/2002 002

Major Amendment 04/22/2003 003 – Not Issued

Minor Amendment 02/18/2011

004 Minor Amendment 03/11/2011

Major Amendment 05/24/2011

Major Amendment 11/2/2011 005

Notification 11/29/2012

006 Reopening (Major Amendment) 5/15/2013



TABLE OF CONTENTS

Notice to the Permittee Permit Shield Facility Description Amendment Descriptions Table A: Limits and Other Requirements Table B: Submittals Table C: Compliance Schedule – Not used in this permit Appendices

A. Insignificant Activities

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.

FACILITY DESCRIPTION: ME Global, Inc. is a steel foundry, producing steel parts primarily for the iron ore mining industry. Scrap steel and alloys are combined and melted in three electric arc furnaces. Castings are made by pouring the molten steel into sand molds produced by vacuum molding. Primary emission sources at the facility include the particulate emissions from the electric arc furnaces and the sand handling operations. Other sources of particulate emissions include the swing grinders and the mold wash stations, which are controlled by fabric filters. The facility also emits Volatile Organic Compound (VOC)/Hazardous Air Pollutant (HAP) emissions from the use of binders, from the oil quench tank, and the mold wash station. The facility has accepted limits on the amount of metal processed per year as well as limits on binder usage, casting throughput, and VOC usage, which limit the VOC/HAP emissions from this facility. These limits are federally enforceable, and result in the facility being a synthetic minor source under the Part 70 permit program and New Source Review. AMENDMENT DESCRIPTIONS: PERMIT ACTION 002 (MAJOR AMENDMENT) AND 003: Permit Action 13700073‐002 amended pressure drop requirements for EU 004 and CE 004 to change the permitted range based on real time pressure drop values. Permit Action 003 was not issued. PERMIT ACTION 004 (MAJOR AMENDMENT): This permit action updated the existing facility description, correcting emission factors and rates, removed duplicitous emission units and updated operational limits for certain units. Corrections to Facility Description:

1. Removed EU 011, EU 012, and EU 014, Heat treat furnaces 1, 2, and 4, respectively, from Facility Description. EU 011 and EU 012 were removed in August 2007 while EU 014 was removed in May 2011.

2. Removed EU 020 Wisconsin Core Oven (EU 020) from Facility Description. This unit was removed in April 2008.

3. Kloster Mixer (EU 038) and the Redford Carver Blowers (EU 039 and EU 40) are listed as being controlled by the existing fabric filter CE 014.

4. Historically, both EU 037 and EU 056 have been used to identify the “mold wash station.” This permit action retires EU 056 from Facility Description. Emission calculations have been updated as well to remove the double counting of emissions from this unit.

Additionally this permit action incorporated the following changes. 1. Installation of a metal reclaims operation, EU 057. 2. Updated the facility description to include EU 060, high efficiency heat treat furnace, which

vents through SV 010. This unit was added in 2007 as a replacement for EU 011 and EU 012. This unit is now identified as “Heat Treat Furnace No. 2.”

3. Installation of two (2) high efficiency heat treat furnaces, identified as EU 058 and EU 059, which vent emissions through stacks SV 070 and SV 071 respectively. These heat treat furnaces will increase the maximum metal throughput rate at the facility. Despite this increase, the facility will remain below the existing annual throughput limit of 60,000 tons of scrap metal.

4. Installation of an activated carbon unit, CE 022, to control VOC emissions from the mold wash station, EU 037.

5. Updated control efficiencies for CE 001, CE 002, and CE 003. 6. The MPCA has revised operation limits for the meltshop (GP 001) and the oil quench tank (EU 004),

in accordance with the Notice of Compliance letter issued by MPCA on September 11, 2009. PERMIT ACTION 005 (MAJOR AMENDMENT): This permit action allowed ME Global to increase material usage (from 60,000 charge tons per year to 90,000 charge tons per year) and add two additional heat treat furnaces (EU 062 and EU 063) with no overall emissions increase due to decreased limits taken on existing equipment (EU 004 and EU 037). Additionally, this permit action added a third electric arc furnace, EU 061, as well as a baghouse, CE 023. Existing roof vent SV 039 was removed and the existing roof penetration was to be collected by CE 014 and exited through SV 016 and SV 017. PERMIT ACTION 006 (MAJOR AMENDMENT): This permit action is a reopening under Minn. R. 7007.1600, subp. 1(D) to incorporate operating limits established pursuant to 7017.2025, subp. 3, and Testing Frequency Plans resulting from performance testing. Also, the MPCA received Notifications on July 25, 2013 and November 29, 2012 of control equipment replacement for EU 017 and EU 019, respectively, which are incorporated with this permit action. EU 017 is now controlled with CE 025 instead of CE 016 and EU 019 is controlled with CE 024 instead of CE 018. Another Notification was received November 10, 2014. This consisted of notifying the agency of installation of three pieces of control equipment (HEPA filters) required under Minn. R. 7007.1150(C)(1) and the capping of stack vents SV 001, SV 002, and SV 003. Each HEPA filter will be installed in‐line with existing fabric filters CE 001, CE 002, and CE 003. The result is that EU 002, EU 043, EU 003, EU 044, and EU 027 will be Conditionally Insignificant PM and PM10 Emitting Operations under Minn. R. 7008.4110, subps. 1 and 2.

TABLE A: LIMITS AND OTHER REQUIREMENTSME Global Inc/Elecmetal Duluth

13700073 - 006

Facility Name:

Permit Number:

01/08/15A-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

The Permittee cannot make any change at the source that would make the sourcesubject to the requirement for a Part 70 permit, until the Part 70 permit is obtained.This includes changes that might otherwise qualify as insignificant modificationsand minor or moderate amendments.

Minn. R. 7007.1150, item E

Permit Appendix: This permit contains appendix as listed in the permit Table ofContents. The Permittee shall comply with all requirements contained in theappendix.

Minn. R. 7007.0800, subp. 2

OPERATIONAL REQUIREMENTS hdr

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, subp. 2; Minn. R. 7007.0800,subp. 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, subp. 14 and Minn. R. 7007.0800,subp. 16(J)

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

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

PERFORMANCE TESTING hdr

Performance Testing: Conduct all performance tests in accordance with Minn. R.ch. 7017 unless otherwise noted in Tables A, B, and/or C.

Minn. R. ch. 7017


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-2

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 an alternativeformat as allowed by Minn. R. 7017.2018.

Minn. R. 7017.2030, subps. 1-4 and Minn. R.7017.2035, subps. 1-2

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

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 that resulted. The Permittee shallinclude the calibration frequencies, procedures, and manufacturer's specifications(if applicable) in the Operations and Maintenance Plan. Any requirements applyingto continuous emission monitors are listed separately in this permit.

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

Operation of Monitoring Equipment: Unless otherwise noted in Tables A, B, and/orC, 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: Retain all records at the stationary source for a period of five (5)years from the date of monitoring, sample, measurement, or report. Records whichmust be retained at this location include all calibration and maintenance records, alloriginal recordings for continuous monitoring instrumentation, and copies of allreports required by the permit. Records must conform to the requirements listed inMinn. 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(as required 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 nonexpiring permits, these records shall bekept for a period of five years from the date that the change was made. The recordsshall be kept at the stationary source for the current calendar year of operation andmay be kept at the stationary source or office of the stationary source for all otheryears. The records may be maintained in 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, Band 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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-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 thebreakdown is 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

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 - 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, to be submitted on a form approved by the Commissioner.

Minn. R. 7019.3000 - 7019.3100

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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-4

Subject Item: GP 001 Meltshop

Associated Items: EU 024 Electric Arc Furnace North - Furnace

EU 025 Electric Arc Furnace South - Furnace

EU 055 Furnace Charging & Tapping - Tapping Equipment

EU 061 Electric Arc Furance #3 - Furnace

SV 015 Electric Arc Furnaces Dust Collector



EMISSION AND OPERATING LIMITS hdr

Th Permittee shall vent emissions from all units in GP 001 to control equipmentmeeting the permit requirements of GP 009 at all times the emission units areoperating.

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000;to avoid major source classification under 40 CFRSection 70.2 and Minn. R. 7007.0200; to avoid majorsource classification under 40 CFR pt. 63

Material Usage: less than or equal to 90000.0 tons/year using 365-day Rolling Sum, of total material charged in all three furnaces. This includes scrap, remeltedscrap, and any added alloys.No automobile scrap is allowed.

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000;to avoid major source classification under 40 CFRSection 70.2 and Minn. R. 7007.0200, subp. 2

Process Throughput: less than or equal to 22.30 tons/hour using 24-hour BlockAverage for all three furnaces combined. Downtime of 15 minutes or more is not tobe counted as operating time.

Minn. R. 7017.2025

RECORDKEEPING REQUIREMENTS hdr

Daily Recordkeeping - Each day, the Permittee shall calculate and recorda. The total quantity of material charged all three furnaces the previous day, andb. The 365-day rolling sum, by summing the 365 previous daily charge quantities.

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000;to avoid classification as a major source under 40 CFRSection 70.2 and Minn. R. 7007.0200, subp. 2

Daily Recordkeeping - Each 24-hour period, the Permittee shall calculate andrecord the total tons per hour melting rate for the previous 24-hour period for allthree electric arc furnaces. Divide the total tons of material melted in all threefurnaces by the number of operating hours for all three furnaces combined. Do notcount downtime of 15 minutes or more as operating time.

Minn. R. 7007.0800, subp. 5


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-5

Subject Item: GP 003 Heat-Treat of Oil-Quenched Castings

Associated Items: CE 010 Direct Flame Afterburner

CE 017 Direct Flame Afterburner



EU 016 Tempering Furnace No. 6 - Furnace




SV 011 Heat Treat Ovens 6-9



Th Permittee shall vent emissions from all units in GP 003 to control equipmentmeeting the permit requirements of GP 010 for at least the first 2 hours of theheat-treat cycle.


Volatile Organic Compounds: less than or equal to 1.0 lbs/ton of oil-quenchedcastings processed.


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. This limitapplies individually to each furnace listed.

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

Opacity: less than or equal to 20.0 percent opacity except for one six-minute periodper hour of not more than 60 percent opacity. This limit applies individually to eachfurnace listed.

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

Fuel: Limited to natural gas. Minn. R. 7005.0100, subp. 35a

TESTING REQUIREMENTS (SV011) hdr

Performance Test: due before end of each calendar 60 months starting 06/26/2014to measure VOC emissions from SV 011 while processing castings that have beenoil-quenched. Testing may be conducted while one or more ovens are processingoil-quenched castings.The performance test shall be conducted at worst cast conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Method 18, or other methodapproved by MPCA in the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-6

Subject Item: GP 005 Controlled Sand Handling

Associated Items: EU 026 Sand System, shakeout, reclaimer - Separation Equipment

EU 033 Kloster Sand Cooler #1 - Cooler

EU 038 Kloster Mixer - Mixing Equipment

EU 039 Redford Carver Blower (east) - Blowing Equipment

EU 040 Redford Carver Blower (west) - Blowing Equipment

EU 041 Carver Mixer - Mixing Equipment


SV 016 Sand Handling

SV 017 Sand Handling



The Permittee shall vent emissions from all units in GP 005 to control equipmentmeeting the permit requirements of CE 014 at all times the emission units areoperating.


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. This limit appliesindividually to each emission unit listed.

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

PM < 10 micron: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas.

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

Opacity: less than or equal to 20.0 percent opacity Minn. R. 7011.0715, subp. 1(B)


Performance Test: due before end of each calendar 60 months starting 01/09/2013for Total Particulate Matter from SV 016.The performance test shall be conductedat worst cast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method approved by MPCA in theperformance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013for Total Particulate Matter from SV 017.The performance test shall be conductedat worst cast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method approved by MPCA in theperformance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-7

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure PM10 emissions from SV 016. The performance test shall beconducted at worst cast conditions as defined at Minn. R. 7017.2005, subp. 8,using EPA Reference Methods 201A and 202, or other method approved by MPCAin the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure PM10 emissions from SV 017. The performance test shall beconducted at worst cast conditions as defined at Minn. R. 7017.2005, subp. 8,using EPA Reference Methods 201A and 202, or other method approved by MPCAin the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure opacity from SV 016. The performance test shall be conducted at worstcast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 9, or other method approved by MPCA in the performance test planapproval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test

Minn. R. 7017.2020, subp 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure opacity from SV 017. The performance test shall be conducted at worstcast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPA ReferenceMethod 9, or other method approved by MPCA in the performance test planapproval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-8

Subject Item: GP 007 Uncontrolled Ovens

Associated Items: EU 013 High Temperature Furnace No. 3 - Furnace

EU 015 High Temperature Furnace No. 5 - Furnace

EU 021 Draw Furnace No 22 - Furnace








EU 042 OSI Oven - Dryer/Oven, unknown firing method

EU 050 Draw Furnace #23 - Frunace

EU 051 High Temp Furnace #10 - Furnace

EU 052 High Temp Furnace #11 - Furnace

EU 058 Heat Treat Furnace #24 - Furnace





SV 010 Heat Treat Ovens 2, 3, 5



SV 019 Heat Treat Oven 17





SV 034 OSI Core Oven

SV 043 General Ventilation - Heat Treat Ovens

SV 044 Heat Treat Furnace 24





PERFORMANCE TESTS LISTED AT EU LEVEL Minn. R. 7007.0800

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. This limit appliesindividually to each of the units listed.

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

Opacity: less than or equal to 20.0 percent opacity except for one six-minute periodper hour of not more than 60 percent opacity. This limit applies individually to eachof the emission units listed.

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

Fuel: Limited to natural gas. Minn. R. 7005.0100, subp. 35a


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-9

Subject Item: GP 008 Units Subject to 40 CFR pt. 63, subp. ZZZZZ

Associated Items: CE 013 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

CE 023 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

EU 024 Electric Arc Furnace North - Furnace

EU 025 Electric Arc Furnace South - Furnace

EU 061 Electric Arc Furance #3 - Furnace




40 CFR pt. 63, subp. ZZZZZ Requirements, Enforcement Not Delegated to MPCA. hdr

**Enforcement not delegated to MPCA.This facility meets the definition of an existing iron and steel foundry. The Permitteeshall comply with the standards in 40 CFR pt. 63, subp. ZZZZZ.

40 CFR Sections 63.10880(a) and (b)(1), 63.10881(a),63.10906

STANDARDS AND MANAGEMENT PRACTICES hdr

For each segregated metallic scrap storage area, bin or pile, the Permittee shallcomply with the following materials acquisition requirements. The Permittee shallkeep a copy of the material specifications onsite and readily available to allpersonnel with material acquisition duties, and provide a copy to each scrapprovider.

40 CFR Section 63.10885(a)(1)

Restricted metallic scrap. The Permittee shall prepare and operate at all timesaccording to written material specifications for the purchase and use of only metalingots, pig iron, slitter, or other materials that do not include post-consumerautomotive body scrap, post-consumer engine blocks, post-consumer oil filters, oilyturnings, lead components, chlorinated plastics, or free liquids. "Free liquids" isdefined as material that fails the paint filter test by EPA Method 9095B, "Paint FilterLiquids Test" (revision 2), November 2004 (incorporated by reference-see 40 CFRSection 63.14). The requirements for no free liquids do not apply if the Permitteecan demonstrate that the free liquid is water that resulted from scrap exposure torain.

40 CFR Section 63.10885(a)(1), continued

Mercury Requirements for Non-Motor Vehicle Scrap: For scrap that does notcontain motor vehicle scrap, the Permittee shall certify in the notification ofcompliance status and maintain records of documentation that the scrap does notcontain motor vehicle scrap, for each scrap provider, contract, or shipment.

40 CFR Section 63.10885(b)(4)

The Permittee shall operate a capture and collection system for each metal meltingfurnace. Each capture and collection system must meet accepted engineeringstandards, such as those published by the American Conference of GovernmentalIndustrial Hygienists.

40 CFR Section 63.10895(b)

Total Particulate Matter: less than or equal to 0.80 lbs/ton of metal charged or 0.06lbs of total metal HAP/ton of metal charged

40 CFR Section 63.10895(c)(1)

Opacity: less than 20 percent opacity using a 6-minute average except for one6-minute average per hour that does not exceed 30 percent. This limit applies tofugitive emissions as defined in 40 CFR Section 63.10906.

CFR Section 63.10895(e)

OPERATION AND MAINTENANCE REQUIREMENTS hdr

The Permittee shall prepare and operate at all times according to a writtenoperation and maintenance (O&M) plan for each control device for an emissionssource subject to a PM, metal HAP, or opacity emissions limit in 40 CFR Section63.10895. The Permittee shall maintain a copy of the O&M plan at the facility andmake it available for review upon request. At a minimum, each plan must containthe following information:1) General facility and contact information;2) Positions responsible for inspecting, maintaining, and repairing emissionscontrol devices which are used to comply with 40 CFR pt. 63, subp. ZZZZZ;3) Description of items, equipment, and conditions that will be inspected, includingan inspection schedule for the items, equipment, and conditions; and4) Identity and estimated quantity of the replacement parts that will be maintainedin inventory.

40 CFR Section 60.10896(a)

The Permittee may use any other O&M, preventative maintenance, or similar planwhich addresses the requirements in 40 CFR Section 63.10896(a)(1) through (5) todemonstrate compliance with the requirements for an O&M plan.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-10

Circumvention. The Permittee shall not build, erect, install, or use any article,machine, equipment, or process to conceal an emission that would otherwiseconstitute noncompliance with a relevant standard. Such concealment includes, butis not limited to:1) The use of diluents to achieve compliance with a relevant standard based on theconcentration of a pollutant in the effluent discharged to the atmosphere or2) The use of gaseous diluents to achieve compliance with a relevant standard forvisible emissions.

40 CFR Section 63.4(b); Minn. R. 7011.7000

Prior to construction or reconstruction of a major-emitting "affected source" underthe promulgated MACT standards, the Permittee must apply for and obtain an air

emission permit.

40 CFR Section 63.5(b)(3); Minn. R. 7011.7000

The Permittee must submit notification according to 40 CFR Section 63.9(b) if thePermittee constructs or reconstructs a source such that the source becomes anaffected source subject to a standard.


After the effective date of any relevant standard promulgated under 40 CFR pt. 63,equipment added (or a process change) to an affected source that is within thescope of the definition of affected source under the relevant standard must beconsidered part of the affected source and subject to all provisions of the relevantstandard established for that affected source.


Proper Operation and Maintenance. At all times, including periods of startup,shutdown, and malfunction, the Permittee shall operate and maintain the emissionunit subject to the MACT standard and any associated air pollution controlequipment and monitoring equipment, in a manner consistent with safety and goodair pollution control practices for minimizing emissions at least to the levelsrequired by any relevant standard and as detailed in 40 CFR Section63.6(e)(1)(i)-(iii).

40 CFR Section 63.6(e)(1)(i); Minn. R. 7011.7000

Malfunctions shall be corrected as soon as practicable after their occurrence. 40 CFR Section 63.6(e)(1)(ii); Minn. R. 7011.7000

Startup, shutdown, and malfunction plan (SSMP). The Permittee shall prepare andimplement a written SSMP by January 2, 2009 that describes, in detail, proceduresfor operating and maintaining the source during periods of startup, shutdown, andmalfunction; and a program of corrective action for malfunctioning process, airpollution control, and monitoring equipment used to comply with the relevantstandard. The plan requirements are further described in 40 CFR Section63.6(e)(3)(i).

40 CFR Section 63.6(e)(3)(i); Minn. R. 7011.7000

When actions taken by Permittee during a startup or shutdown (and the startup orshutdown causes the source to exceed any applicable emission limitation), ormalfunction (including actions taken to correct a malfunction) are consistent withthe procedures specified in the affected source's SSMP, the Permittee must keeprecords which demonstrate that the procedures specified in the SSMP werefollowed and describes the actions taken for that event.

40 CFR Section 63.6(e)(3)(iii) ; Minn. R. 7011.7000

If an action taken by the Permittee during a startup, shutdown, or malfunction(including an action taken to correct a malfunction) is not consistent with theprocedures specified in the affected source's SSMP, and the source exceeds anyapplicable emission limitation in the relevant emission standard, then the Permitteemust record the actions taken for that event and must report such actions asspecified in 40 CFR Section 63.10(d)(5).

40 CFR Section 63.6(e)(3)(iv) ; Minn. R. 7011.7000

The Permittee must maintain at the affected source a current SSMP and mustmake the plan available upon request for inspection and copying by theCommissioner and the Administrator. In addition, if the SSMP is subsequentlyrevised, the Permittee must maintain at the affected source each previous (i.e.,superseded) version of the SSMP, and must make each such previous versionavailable for inspection and copying for a period of 5 years after revision of theSSMP.

40 CFR Section 63.6(e)(3)(v); Minn. R. 7011.7000

To satisfy the requirements of this section to develop a SSMP, the Permittee mayuse a standard operating procedures (SOP) manual, or other plan, provided thealternative plans meet all the requirements and are made available for inspection orsubmission.

63.6(e)(3)(vi ); Minn. R. 7011.7000

The Administrator may require that a Permittee make changes to the SSMP.Revisions to the SSMP will be required if the plan:

1) Does not address a startup, shutdown, or malfunction event that has occurred;2) Fails to provide for the operation of the source (including associated air pollutioncontrol and monitoring equipment) during a startup, shutdown, or malfunction eventin a manner consistent with the general duty to minimize emissions established by40 CFR Section 63.6(e)(3)(iii)-63.6(e)(3)(ix) (e)(1)(i);3) Does not provide adequate procedures for correcting malfunctioning processand/or air pollution control and monitoring equipment as quickly as practicable; or4) Includes an event that does not meet the definition of startup, shutdown, ormalfunction.

63.6(e)(3)(vii) ; Minn. R. 7011.7000


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-11

The Permittee may periodically revise the SSMP as necessary to reflect changes inequipment or procedures at the affected source. Each such revision to a SSMPmust be reported in the semiannual report required by 40 CFR Section 63.10(d)(5).If the SSMP fails to address or inadequately addresses an event that meets thecharacteristics of a malfunction but was not included in the SSMP, the Permitteeshall revise the SSMP within 45 days after the event in accordance with 40 CFRSection 63.6(e)(3)(viii).

40 CFR Section 63.6(e)(3)(viii); Minn. R. 7011.7000

Any revisions made to the SSMP shall not be deemed to constitute permit revisionsunder 40 CFR pt. 70 or pt. 71.

40 CFR Section 63.6(e)(3)(ix);Minn. R. 7011.7000

Applicability. The non-opacity emission standards set forth in 40 CFR Section63.6(f)(1)-(3) shall apply at all times except during periods of startup, shutdown,and malfunction, and as otherwise specified in 40 CFR pt. 63, subp. ZZZZZ.

40 CFR Section 63.6(f)(1); Minn. R. 7011.7000

Methods for determining compliance will be, in part, based on the results ofperformance tests, conformance with operation and maintenance requirements,review of records, and inspection of the source as specified in 40 CFR Section63.6(f)(2)The Permittee many use the results of performance testing conducted previously ifit meets the requirements of 40 CFR Section 63.6(f)(iii).


Finding of compliance. The Administrator will make a finding concerning anaffected source's compliance with a non-opacity emission standard upon obtainingall the compliance information required by the relevant standard.


The Permittee may establish the use of an alternative non-opacity emissionstandard by following the procedure specified in 40 CFR Section 63.6(g).

40 CFR Section 63.6(g); Minn. R. 7011.7000

Compliance with opacity and visible emission standards. The opacity and visibleemission standards apply at all times except during periods of startup, shutdown,and malfunction, and as otherwise specified in an applicable subpart. If a startup,shutdown, or malfunction of one portion of an affected source does not affect theability of particular emission points within other portions of the affected source tocomply with the opacity and visible emission standards set forth in this part, thenthat emission point shall still be required to comply with the opacity and visibleemission standards and other applicable requirements.

40 CFR Section 63.6(h)(1); Minn. R. 7011.7000

Methods for determining compliance. Compliance with opacity emission standardsshall be determined by conducting observations in accordance with Test Method 9in 40 CFR, pt. 60, Appendix A or the method specified in 40 CFR Section63.6(h)(7)(ii). Whenever a visible emission test method is not specified, compliancewith visible emission standards in this part shall be determined by conductingobservations in accordance with Test Method 22 in 40 CFR pt. 60, Appendix A.


Notification of opacity or visible emission observations. The Permittee shall notifythe Administrator in writing of the anticipated date for conducting opacity or visibleemission observations in accordance with 40 CFR Section 63.9(f).

40 CFR Section 63.6(h)(4)

Conduct of opacity or visible emission observations. For initial compliance, opacityor visible emission observations shall be conducted concurrently with the initialperformance test unless otherwise specified in 40 CFR Section 63.6(h)(5)(A) and(B).


Recordkeeping. The Permittee shall make available, upon request by theAdministrator, such records to determine the conditions under which the visualobservations were made and shall provide evidence indicating proof of currentvisible observer emission certification.


Finding of compliance. The Administrator will make a finding concerning anaffected source's compliance with an opacity or visible emission standard uponobtaining all the compliance information required by the relevant standard and anyinformation available needed to determine whether proper operation andmaintenance practices are being used.


If the Administrator finds that affected source is in compliance with all relevantstandards for which initial performance tests were conducted, but during the timesuch performance tests were conducted fails to meet any relevant opacity emissionstandard, the Permittee may petition the Administrator to make appropriateadjustment to the opacity emission standard for the affected source. Until theAdministrator notifies the Permittee, the relevant opacity emission standardremains applicable.


Until an extension of compliance has been granted by the Administrator, thePermittee shall comply with all applicable requirements of 40 CFR pt. 63, subp. A.

40 CFR Section 63.6(i)(1); Minn. R. 7011.7000

The Administrator may grant an extension of compliance with an emissionstandard, as specified in 40 CFR Section 63.6(i).

40 CFR Section 63.6(i); Minn. R. 7011.7000

MONITORING REQUIREMENTS hdr


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-12

The Permittee shall conduct an initial inspection of each PM control device for ametal melting furnace listed in GP 008. The Permittee shall conduct each initialinspection no later than 60 days after the applicable compliance date for eachinstalled control device which has been operated within 60 days of the compliancedate. The Permittee shall perform periodic inspections and maintenance of eachPM control device for each metal melting furnace in GP 008. The Permittee shallperform the periodic inspections according to the requirements listed in this permitand shall record the results of each periodic inspection and any maintenance actionin the logbook required in 40 CFR Section 63.10899(b)(13).


The Permittee must conduct an initial inspection of each PM control device for ametal melting furnace at an existing affected source. The Permittee must conducteach initial inspection no later than 60 days after the applicable compliance date foreach installed control device which has been operated within 60 days of thecompliance date. For an installed control device which has not operated within 60days of the compliance date, the Permittee must conduct an initial inspection priorto startup of the control device. Following the initial inspections, the Permittee mustperform periodic inspections and maintenance of each PM control device for ametal melting furnace at an existing affected source. The permittee must performthe initial and periodic inspections according to the requirements in paragraphs(a)(1) through (4) of this section.


CONTINUED FROM ABOVE:The Permittee must record the results of each initial and periodic inspection andany maintenance action in the logbook required in 40 CFR Section 63.10899(b)(13).(1) For the initial inspection of each baghouse, the Permittee must visually inspectthe system ductwork and baghouse units for leaks. The Permittee must alsoinspect the inside of each baghouse for structural integrity and fabric filtercondition. Following the initial inspections, the Permittee must inspect and maintaineach baghouse according to the requirements in paragraphs (a)(1)(i) and (ii) of thissection.

(i) The Permittee must conduct monthly visual inspections of the system ductworkfor leaks.

(ii) The Permittee must conduct inspections of the interior of the baghouse forstructural integrity and to determine the condition of the fabric filter every 6 months

40 CFR Section 63.10897(a)(1)(i)-(ii)

The Permittee shall make monthly inspections of the equipment that is important tothe performance of the total capture system (i.e., pressure sensors, dampers, anddamper switches). This inspection must include observations of the physicalappearance of the equipment (e.g., presence of holes in the ductwork or hoods,flow constrictions caused by dents or accumulated dust in the ductwork, and fanerosion). The Permittee shall repair any defect or deficiency in the capture systemas soon as practicable, but no later than 90 days. The Permittee shall record thedate and results of each inspection and the date of repair of any defect ordeficiency.

40 CFR Section 63.10897(e)

In the event of an exceedance of an established emissions limitation (including anoperating limit), the Permittee shall restore operation of the emissions source(including the control device and associated capture system) to its normal or usualmanner or operation as expeditiously as practicable in accordance with good airpollution control practices for minimizing emissions. The response shall includeminimizing the period of any startup, shutdown or malfunction and taking anynecessary corrective actions to restore normal operation and prevent the likelyrecurrence of the exceedance. The Permittee shall record the date and timecorrective action was initiated, the corrective action taken, and the date correctiveaction was completed.

40 CFR Section 63.10897(g)


The Permittee shall conduct a performance test to demonstrate initial compliancewith the applicable emissions limits for each metal melting furnace or group of allmetal melting furnaces that is subject to an emissions limit in 40 CFR Section63.10895(c) and for each building or structure housing foundry operations that issubject to the opacity limit for fugitive emissions in 40 CFR Section 63.10895(e).The Permittee shall conduct the test within 180 days of 1/2/2009 and report theresults in the notification of compliance status.


The Permittee must conduct subsequent performance tests to demonstratecompliance with all applicable PM or total metal HAP emissions limits in 40 CFRSection 63.10895(c) for a metal melting furnace or group of all metal meltingfurnaces no less frequently than every 5 years and each time the Permittee electsto change an operating limit or make a process change likely to increase HAPemissions.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-13

The Permittee must conduct each performance test according to the requirementsin 40 CFR Section 63.7(e)(1), Table 1 of 40 CFR pt. 63, subp. ZZZZZ, and 40 CFRSection 63.10898(d) through (g).

40 CFR Section 63.10898(c)

The Permittee must conduct each opacity test for fugitive emissions (as defined in40 CFR Section 63.10906) according to the requirements in 40 CFR Section63.6(h) (5) and Table 1 40 CFR pt. 63, subp. ZZZZZ.

40 CFR Section 63.10898(h)

The Permittee must conduct subsequent performance tests to demonstratecompliance with the opacity limit in 40 CFR Section 63.10895(e) no less frequentlythan every 6 months and each time the Permittee makes a process change likely toincrease fugitive emissions (as defined in 40 CFR Section 63.10906).

40 CFR Section 63.10898(i)

In the performance test report, the Permittee must certify that the capture systemoperated normally during the performance test.

40 CFR Section 63.10898(j)

Notification of performance test.1) The Permittee must notify the Administrator of their intention to conduct aperformance test at least 60 calendar days before the performance test is initiallyscheduled to begin.2) In the event the Permittee is unable to conduct the performance test on the datespecified due to unforeseeable circumstances, the Permittee must notify theAdministrator as soon as practicable and without delay prior to the scheduledperformance test date and specify the date when the performance test isrescheduled.

40 CFR Section 63.7(b); Minn. R. 7017.2015

Submission of site-specific test plan. Before conducting a required performancetest, the Permittee shall develop and, if requested by the Administrator, shallsubmit a site-specific test plan for approval in accordance with the requirements of40 CFR Section 63.7(c)(2).

40 CFR Section 63.7(c)(2); Minn. R. 7017.2015

Approval of site-specific test plan. The Administrator will notify the Permittee ofapproval or intention to deny approval of the site-specific test plan (if review of thesite-specific test plan is requested) within 30 calendar days after receipt of theoriginal plan and within 30 calendar days after receipt of any supplementaryinformation.

40 CFR Section 63.7(c)(3); Minn. R. 7017.2015

Performance testing facilities. The Permittee, at the request of the Administrator,shall provide performance testing facilities as specified in 40 CFR Section 63.7(d).

40 CFR Section 63.7(d); Minn. R. 7017.2015

Conduct of performance tests.1) Performance tests shall be conducted under based on representative of theaffected source. Operations during periods of startup, shutdown, and malfunctionshall not constitute representative conditions for the purpose of a performance test.2) Performance tests shall be conducted and data shall be reduced in accordancewith the test methods and procedures set forth in 40 CFR Section 63.7(e), in eachrelevant standard, and, if required, in applicable appendices of 40 CFR parts 51,60, 61.

40 CFR Section 63.7(e)(1)-(2); Minn. R. 7017.2015

Unless otherwise specified in a relevant standard or test method, eachperformance test shall consist of three separate runs using the applicable testmethod. Each run shall be conducted for the time and under the conditionsspecified in the relevant standard. For the purpose of determining compliance witha relevant standard, the arithmetic mean of the results of the three runs shall apply,unless otherwise approved in accordance with provisions of 40 CFR Section63.7(e)(3).

40 CFR Section 63.7(e)(3); Minn. R. 7017.2015

Data analysis, recordkeeping, and reporting. Unless otherwise specified in arelevant standard or test method, or as otherwise approved by the Administrator inwriting, results of a performance test shall include the analysis of samples,determination of emissions, and raw data. A performance test is "completed" whenfield sample collection is terminated. The Permittee shall report the results of theperformance test to the Administrator before the close of business on the 60th dayfollowing the completion of the performance test, unless specified otherwise in arelevant standard or as approved otherwise in writing. The results of theperformance test shall be submitted as part of the notification of compliance statusrequired under 40 CFR Section 63.9(h) to the appropriate permitting authority.

40 CFR Section 63.7(g); Minn. R. 7017.2015

Waiver of performance tests. Until a waiver of a performance testing requirementhas been granted by the Administrator under 40 CFR Section 63.7(h), thePermittee remains subject to the requirements of 40 CFR Section 63.7(h).

40 CFR Section 63.7(h); Minn. R. 7017.2015

RECORDKEEPING AND REPORTING hdr

As required by 40 CFR Section 63.10(b)(1), the Permittee must maintain files of allinformation (including all reports and notifications) for at least 5 years following thedate of each occurrence, measurement, maintenance, corrective action, report, orrecord. At a minimum, the most recent 2 years of data shall be retained on site.The remaining 3 years of data may be retained off site. Such files may bemaintained on microfilm, on a computer, on computer floppy disks, on magnetictape disks, or on microfiche.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-14

In addition to the records required by 40 CFR Section 63.10, the Permittee mustkeep records of the following information:1) Records of written materials specifications according to 40 CFR Section63.10885(a) and records that demonstrate compliance with the requirements forrestricted metallic scrap in 40 CFR Section 63.10885(a) (1) and/or for the use ofgeneral scrap in 40 CFR Section 63.10885(a)(2) and for mercury in 40 CFRSection 63.10885(b)(1) through (3), as applicable. The Permittee must keeprecords documenting compliance with 63.10885(b)(4) for scrap that does notcontain motor vehicle scrap;


CONTINUED FROM ABOVE:11) Record of the results of each inspection and maintenance required by 40 CFRSection 63.10897(a) for PM control devices in a logbook (written or electronicformat). The Permittee must keep the logbook onsite and make the logbookavailable to the Administrator upon request. The Permittee must keep records ofthe date and time of each recorded action for a fabric filter, the results of eachinspection, and the results of any maintenance performed on the bag filters.

40 CFR Section 63.10899(b), continued

The Permittee must submit semiannual compliance reports to the Administratoraccording to the requirements in 40 CFR Section 63.10(e). The reports mustinclude, at a minimum, the following information as applicable:1) Summary information on the number, duration, and cause (including unknowncause, if applicable) of excursions or exceedances, as applicable, and thecorrective action taken;2) Summary information on the number, duration, and cause (including unknowncause, if applicable) for monitor downtime incidents (other than downtimeassociated with zero and span or other calibration checks, if applicable); and3) Summary information on any deviation from the pollution preventionmanagement practices in 40 CFR Sections 63.10885 and 63.10886 and theoperation and maintenance requirements 40 CFR Section 63.10896 and thecorrective action taken.

40 CFR Section 63.10899(c)

The Permittee must submit written notification to the Administrator of anyreclassification as required in 40 CFR Section 63.10881(d) or (e), as applicable.

40 CFR Section 63.10899(d)

The Permittee of a new or reconstructed major affected source for which anapplication for approval of construction or reconstruction is required under 40 CFRSection 63.5(d) must provide the following information in writing to theAdministrator:1) A notification of intention to construct a new major-emitting affected source,reconstruct a major-emitting affected source, or reconstruct a major source suchthat the source becomes a major-emitting affected source; and2) A notification of the actual date of startup of the source, delivered or postmarkedwithin 15 calendar days after that date.


Notification of performance test. The Permittee shall notify the Administrator inwriting of his or her intention to conduct a performance test at least 60 calendardays before the performance test is scheduled to begin.

40 CFR Section 63.9(e); Minn. R. 7019.0100

Notification of opacity and visible emission observations. The Permittee shall notifythe Administrator in writing of the anticipated date for conducting opacity or visibleemission observations. The notification shall be submitted with the notification ofthe performance test date, or if no performance test is required or visibility or otherconditions prevent the opacity or visible emission observations from beingconducted concurrently with the initial performance test. The Permittee shall deliveror postmark the notification not less than 30 days before the opacity or visibleemission observations are scheduled to take place.

40 CFR Section 63.9(f); Minn. R. 7019.0100

Notification of compliance status.Each time a notification of compliance status is required under 40 CFR pt. 63,subp. A, the Permittee shall submit to the Commissioner a notification ofcompliance status containing the information required by 40 CFR Section 63.9(h),signed by the responsible official who shall certify its accuracy, attesting to whetherthe source has complied with the relevant standard.The notification must be sent by the 60th day following the completion of therelevant compliance demonstration activity specified in the relevant standard. If noperformance test is required but opacity or visible emission observations arerequired, the notification of compliance status shall be sent by the 30th dayfollowing the completion of opacity or visible emission observations. Notificationsmay be combined as long as the due date requirement for each notification is met.

63.9(h); Minn. R. 7019.0100

Notification. Any change in the information already provided under 40 CFR Section63.9 shall be provided to the Administrator in writing within 15 calendar days afterthe change.

40 CFR Section 63.9(j); Minn. R. 7019.0100

The Permittee shall submit reports to the the Administrator. 40 CFR Section 63.10(a); Minn. R. 7019.0100


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-15

Recordkeeping. The Permittee shall maintain files of all information (including allreports and notifications) required by 40 CFR pt. 63 in a form suitable and readilyavailable for expeditious inspection and review. The files shall be retained for atleast 5 years following the date of each occurrence, measurement, maintenance,corrective action, report, or record. At a minimum, the most recent 2 years of datamust be retained on site.

40 CFR Section 63.10(b)(1); Minn. R. 7019.0100,subp. 2(B)

The Permittee shall maintain, at a minimum, the following information in the files:1) the occurrence and duration of each startup, shutdown, or malfunction ofoperation, where the startup, shutdown, or malfunction causes the source toexceed any applicable emission limitation;2) the occurrence and duration of each malfunction of the air pollution controlequipment, where the startup, shutdown, or malfunction causes the source toexceed any applicable emission limitation;3) all maintenance performed on the pollution control equipment;4) actions taken during periods of startup, shutdown, and malfunction when suchactions are different from the procedures specified in the affected source's startup,shutdown, and malfunction plan (SSMP). In this case, the Permittee shall reportthis action within 2 days of occurrence and follow by a written notification within 7days of occurrence.


CONTINUED5) all information necessary to demonstrate conformance with the affected source'sSSMP and actions taken in accordance with SSMP;6) each period during which a continuous monitoring system (CMS) ismalfunctioning or inoperative;7) all required measurements needed to demonstrate compliance with a relevantstandard;8) all results of performance test, CMS performance evaluations, and opacity andvisible emission observations;9) all measurements as may be necessary to determine the conditions ofperformance tests and performance evaluations;10) all CMS calibration checks;11) all adjustments and maintenance performed on CMS;12) any information demonstrating whether a source is meeting the requirementsfor a waiver of record keeping or reporting requirements under this part;13) all documents supporting initial notifications and notifications of compliancestatus.


Reporting results of opacity or visible emission observations. The Permittee shallreport the opacity or visible emission results along with the results of theperformance test. If no performance test is required, or if visibility or otherconditions prevent the opacity or visible emission observations from beingconducted concurrently with the performance test, the Permittee shall report theopacity or visible emission results before the close of business on the 30th dayfollowing the completion of the opacity or visible emission observations.

40 CFR Section 63.10(d)(3); Minn. R. 7019.0100


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-16

Subject Item: GP 009 Control Requirements for Electric Arc Furnaces


CE 023 Fabric Filter - Low Temperature, i.e., T<180 Degrees F


The Permittee shall operate and maintain the control equipment at any time thatthe associated process equipment controlled by it is in operation.


Maintain and operate the control equipment and capture system for each of themelting furnaces such that during melting they each achieve an overall controlefficiency for Total Particulate Matter: greater than or equal to 89.0 percent controlefficiency

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000;to avoid major source classification under 40 CFRSection 70.2 and Minn. R. 7007.0200

Maintain and operate the control equipment and capture system for each of themelting furnaces such that during melting they each achieve an overall controlefficiency for PM < 10 micron: greater than or equal to 89.0 percent


Maintain and operate the control equipment and capture system for each of themelting furnaces such that during melting they each achieve an overall controlefficiency for PM < 2.5 micron: greater than or equal to 74.0 percent controlefficiency

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000:to avoid major source classification under 40 CFRSection 70.2 and Minn. R. 7007.0200

Maintain and operate the control equipment and capture system for the chargingand tapping operations of each of the furnaces such that they each achieve anoverall control efficiency for Total Particulate Matter: greater than or equal to 74.0percent control efficiency


Maintain and operate the control equipment and capture system for the chargingand tapping operations of each of the furnaces such that they each achieve anoverall control efficiency for PM < 10 micron: greater than or equal to 74.0 percent


Maintain and operate the control equipment and capture system for the chargingand tapping operations of each of the furnaces such that they each achieve anoverall control efficiency for PM < 2.5 micron: greater than or equal to 74.0 percentcontrol efficiency


Pressure Drop: greater than or equal to 2.0 inches of water column and less thanor equal to 13.0 inches of water column in each of the 10 compartments, unless anew range is set pursuant to Minn. R. 7017.2025, subp. 3, based on the valuesrecorded during the most recent MPCA approved performance test wherecompliance was demonstrated. The Permittee shall record the pressure drop ofeach compartment once every 24 hours when in operation.


Recordkeeping of Pressure Drop. The Permittee shall record the time and date ofeach pressure drop reading and whether or not the recorded pressure drop waswithin the range specified in this permit.

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

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

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

Corrective Actions: The Permittee shall follow the O&M Plan for the controlequipment and take corrective action as soon as possible (within 24 hours) if any ofthe following occur:- the recorded pressure drop is outside the required operating range; or- the equipment or any of its components are found during the inspections to needrepair.The Permittee shall keep a record of the type and date of any corrective actiontaken.

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

Hood Certification and Evaluation: Each control device hood must conform to therequirements listed in Minn. R. 7011.0070, subp. 1, and the Permittee shall certifythis as specified in Minn. R. 7011.0070, subp. 3. The Permittee shall maintain acopy of the certification on site, as well as an annual record of fan rotation speed,fan power draw, or face velocity of the hood, or other comparable air flow indicationmethod.

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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-17

Subject Item: GP 010 Control of Heat-Treat of Oil-Quenched Castings

Associated Items: CE 010 Direct Flame Afterburner





The Permittee shall operate and maintain the thermal oxidizer any time that theassociated process equipment controlled by the thermal oxidizer is processingcastings that have been oil-quenched, for at least the first 2 hours of the heat-treatcycle.


Maintain and operate the control equipment that they each achieve an overallcontrol efficiency for Volatile Organic Compounds: greater than or equal to 95percent control efficiency


Temperature: greater than or equal to 1290.0 degrees F absolute minimum at theCombustion Chamber of each afterburner unless a new minimum is set pursuant toMinn. R. 7017.2025, subp. 3, based on the average temperature recorded duringthe most recent MPCA approved performance test where compliance for VOCemissions was demonstrated. If the temperature drops below the minimumtemperature limit, the VOC used during that time shall be considered uncontrolleduntil the minimum temperature limit is once again achieved. This shall be reportedas a deviation.


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 operation of themonitored control equipment is required.

Minn. R. 7007.0800, subp. 4

The Permittee shall maintain and operate a thermocouple monitoring device thatcontinuously indicates and records the combustion chamber temperature of thethermal oxidizer. The monitoring device shall have a margin of error less than thegreater of +/- 0.75 percent of the temperature being measured or +/- 2.5 degreesCelsius.

Minn. R. 7007.0800, subps. 4 and 5

Daily Monitoring: The Permittee shall check the temperature recording operation atleast once each operating day to verify that it is working and recording properly.

Minn. R. 7007.0800, subps. 4 and 5

Quarterly Inspections: At least once per calendar quarter, the Permittee shallinspect the control equipment internal and external system components, includingbut not limited to the refractory, heat exchanger, and electrical systems. ThePermittee shall maintain a written record of the inspection and any correctiveactions taken resulting from the inspection.

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

Annual Calibration: The Permittee shall calibrate the temperature monitor at leastannually and shall maintain a written record of the calibration and any actionresulting from the calibration.

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

Corrective Actions: If the temperature is below the minimum specified by this permitor if the thermal oxidizer or any of its components are found during the inspectionsto need repair, the Permittee shall take corrective action as soon as possible.Corrective actions shall return the temperature to at least the permitted minimumand/or include completion of necessary repairs identified during the inspection, asapplicable. Corrective actions include, but are not limited to, those outlined in the O& M Plan for the thermal oxidizer. The Permittee shall keep a record of the typeand date of any corrective action taken.

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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-18

Subject Item: EU 004 Oil Quench Tank - Quenching Equipment

Associated Items: CE 004 Wet Scrubber - Medium Efficiency

SV 004 Oil Quench

SV 032 General Ventilation - Heat Treat Area

SV 033 General Ventilation - Heat Treat Area



The Permittee shall vent emissions from EU 004 to control equipment meeting thepermit requirements of CE 004 at all times the emission unit is operating.


Volatile Organic Compounds: less than or equal to 0.84 lbs/ton of materialquenched


Process Throughput: less than or equal to 5000 tons/year using 12-month RollingSum of castings oil quenched.


Process Throughput: less than or equal to 7508 lbs/hour using 12-hour BlockAverage. Downtime of 15 minutes or more is not to be counted as operating time.

Minn. R. 7017.2025, subp. 3

RECORDKEEPING REQUIREMENTS hdr

Daily Recordkeeping: Each day of operation, the Permittee shall record theprocess throughput in tons of castings oil quenched.


Daily Recordkeeping - Each day, calculate the pounds per hour oil quenching ratefor each of the previous day's 12 hour shifts. Divide the total pounds of casting oilquenched in an 12-hour shift by the hours of oil-quenching time in the shift. Do notcount downtime of 15 minutes or more as operating time.

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

Monthly Recordkeeping - By the 15th day of each month, the Permittee shall:1. Use the daily records to calculate and record the monthly process throughput intons of castings quenched2. Use the monthly process throughput records to calculate and record the12-month Rolling Sum of process throughput by summing the process throughputsof the previous 12 calendar months.

Minn. R. 7007.0800, subp 5(A)

PERFORMANCE TESTING REQUIREMENT hdr

Performance Test: due before end of each calendar 60 months starting 06/26/2014to measure VOC emissions from SV 004. The performance test shall be conductedat worst cast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Method 18, or other method approved by MPCA in the performance testplan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-19

Subject Item: EU 009 Blast Cabinet - Abrasive Equipment


SV 009 Shot blast





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)



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-20

Subject Item: EU 024 Electric Arc Furnace North - Furnace


GP 001 Meltshop

GP 008 Units Subject to 40 CFR pt. 63, subp. ZZZZZ



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)


Performance Test: due before end of each calendar 60 months starting 06/24/2014for Total Particulate Matter from SV 015. The performance test shall be conductedat worst cast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method approved by MPCA in theperformance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1


Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-21

Subject Item: EU 025 Electric Arc Furnace South - Furnace


GP 001 Meltshop




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)


Performance Test: due before end of each calendar 60 months starting 06/26/2014for Total Particulate Matter from SV 015. The performance test shall be conductedat worst cast conditions as defined at Minn. R. 7017.2005, subp. 8, using EPAReference Methods 5 and 202, or other method approved by MPCA in theperformance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1


Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-22

Subject Item: EU 037 Mold Wash Station - Spray Booth/Coating Line

Associated Items: CE 022 Activated Carbon Adsorption




Volatile Organic Compounds: less than or equal to 61.6 tons/year using 12-monthRolling Sum


Monthly Recordkeeping - By the 15th day of each month, the Permittee shall:1. Record the quantity of VOC used the previous month.2. Use the monthly VOC usage records to calculate and record the 12-monthRolling Sum of VOC usage by summing the VOC usage for the previous 12calendar months.



13700073 - 006

Facility Name:

Permit Number:

01/08/15A-23

Subject Item: EU 042 OSI Oven - Dryer/Oven, unknown firing method

Associated Items: GP 007 Uncontrolled Ovens

SV 034 OSI Core Oven


Material Usage: less than 100,000 lbs/year using 12-month Rolling Average .Material = BinderNo furfuryl alcohol warm box core making binder formulation subject to 40 CRFSection 63.10886.

Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and MInn. R. 7007.3000;to avoid major source classificatinunder 40 CFRSection 70.2 and Minn. R. 7007.0200, subp. 2

Monthly Recordkeeping: By the 15th day of each month, the Permittee shall:1. Record the monthly binder material usage in pounds for the previous calendarmonth.2. Use the monthly binder material usage records to calculate and record the12-month Rolling Sum of monthly binder material usage by summing the monthlybinder material usages of the previous 12 calendar months.


For EU042 binder formulation requirements related to 40 CFR pt. 63, subp. ZZZZZ,see GP008.

40 CFR Section 63.10886


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-24

Subject Item: EU 058 Heat Treat Furnace #24 - Furnace




Performance Test: due before end of each calendar 60 months starting 10/19/2012for Total Particulate Matter from SV 044. The limit can be found under GP 007.The performance test shall be conducted at worst cast conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 5 and 202, or othermethod approved by MPCA in the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp . 1

Performance Test: due before end of each calendar 60 months starting 10/19/2012for opacity from SV 044. The limit can be found under GP 007.The performance test shall be conducted at worst cast conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Method 9, or other methodapproved by MPCA in the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-25






Minn. R. 7017.2020, subp . 1


Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-26



SV 010 Heat Treat Ovens 2, 3, 5



Minn. R. 7017.2020, subp . 1


Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-27

Subject Item: EU 061 Electric Arc Furance #3 - Furnace


GP 001 Meltshop




PM < 10 micron: less than or equal to 0.30 grains/dry standard cubic foot ofexhaust gas.

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


Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure PM10 emissions from SV 046.The performance test shall be conducted at worst cast conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Methods 201A and 202, orother method approved by MPCA in the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test.

Minn. R. 7017.2020, subp. 1

Performance Test: due before end of each calendar 60 months starting 01/09/2013to measure opacity from SV 046. The limit can be found under GP 001.The performance test shall be conducted at worst cast conditions as defined atMinn. R. 7017.2005, subp. 8, using EPA Reference Method 9, or other methodapproved by MPCA in the performance test plan approval.Testing conducted during the two months prior to the performance test due datesatisfies the performance test due date, and will not reset the test due date forfuture testing as required by: 1) this permit, 2) by the most recently approvedPerformance Test Frequency Plan, or 3) if specified within a Notice of Complianceletter. Testing conducted more than two months prior to the performance test duedate does not satisfy this test due date requirement and will be considered anadditional test

Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-28






Minn. R. 7017.2020, subp . 1


Minn. R. 7017.2020, subp. 1


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-29

Subject Item: CE 004 Wet Scrubber - Medium Efficiency

Associated Items: EU 004 Oil Quench Tank - Quenching Equipment




Pressure Drop: greater than or equal to 1.0 inches of water column and less thanor equal to 5.0 inches of water column unless a new range is 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. ThePermittee shall record the pressure drop once every 24 hours when in operation.



Title I Condition: To avoid major source classificationunder 40 CFR Section 52.21 and Minn. R. 7007.3000;to avoid major source classification under 40 CFRSection 70.2 and Minn. R. 7007.0200, subp. 2;Minn. R. 7007.0800, subps. 4, 5, and 14


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


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

Hood Certification and Evaluation: The control device hood must conform to therequirements listed in Minn. R. 7011.0070, subp. 1, and the Permittee shall certifythis as specified in Minn. R. 7011.0070, subp. 3. The Permittee shall maintain acopy of the certification on site, as well as an annual record of fan rotation speed,fan power draw, or face velocity of the hood, or other comparable air flow indicationmethod(s).

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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-30

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

Associated Items: EU 009 Blast Cabinet - Abrasive Equipment




Maintain and operate the control equipment and capture systems such that theyeach achieve an overall control efficiency for Total Particulate Matter: greater thanor equal to 99 percent control efficiency

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

Maintain and operate the control equipment and capture systems such that theyeach achieve an overall control efficiency for PM < 10 micron: greater than or equalto 99 percent control efficiency


Maintain and operate the control equipment and capture systems such that theyeach achieve an overall control efficiency for PM < 2.5 micron: greater than orequal to 99 percent control efficiency


Pressure Drop: greater than or equal to 2.0 inches of water column and less thanor equal to 6.0 inches of water column , unless a new range is set pursuant toMinn. R. 7017.2025, subp. 3, based on the values recorded during the most recentMPCA approved performance test where compliance was demonstrated. ThePermittee shall record the pressure drop once every 24 hours when in operation.




Periodic Inspections: At least once per calendar quarter, or more frequently ifrequired 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


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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-31

Subject Item: CE 014 Fabric Filter - Low Temperature, i.e., T<180 Degrees F

Associated Items: EU 026 Sand System, shakeout, reclaimer - Separation Equipment


EU 039 Redford Carver Blower (east) - Blowing Equipment

EU 040 Redford Carver Blower (west) - Blowing Equipment

EU 041 Carver Mixer - Mixing Equipment




Maintain and operate the control equipment and capture system such that it canacheive an overall control efficiency for Total Particulate Matter: greater than orequal to 99 percent control efficiency

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

Maintain and operate the control equipment and capture system such that it canacheive an overall control efficiency for PM < 10 micron: greater than or equal to 99percent control efficiency


Maintain and operate the control equipment and capture system such that it canacheive an overall control efficiency for PM < 2.5 micron: greater than 99 percentcontrol efficiency


Pressure Drop: greater than or equal to 2.0 inches of water column and less thanor equal to 9.0 inches of water column , unless a new range is set pursuant toMinn. R. 7017.2025, subp. 3, based on the values recorded during the most recentMPCA approved performance test where compliance was demonstrated. ThePermittee shall record the pressure drop once every 24 hours when in operation.



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


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


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


13700073 - 006

Facility Name:

Permit Number:

01/08/15A-32

Subject Item: CE 022 Activated Carbon Adsorption

Associated Items: EU 037 Mold Wash Station - Spray Booth/Coating Line




Pressure Drop: greater than or equal to 0.05 inches of water column and less thanor equal to 3.0 inches of water column unless a new range is 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. ThePermittee shall record the pressure drop once every 24 hours when in operation.





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


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

TABLE B: SUBMITTALSFacility Name: ME Global Inc/Elecmetal Duluth

Permit Number: 13700073 - 006

01/08/15B-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 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

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 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

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.

TABLE B: RECURRENT SUBMITTALSFacility Name: ME Global Inc/Elecmetal Duluth

Permit Number: 13700073 - 006

01/08/15B-2

What to send When to send Portion of Facility Affected

Semiannual Deviations Report due 30 days after end of each calendarhalf-year starting 05/23/2002 . 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

Compliance Certification due 31 days after end of each calendar yearstarting 03/07/2012 (for the previous calendaryear). The Permittee shall submit this to theCommissioner on a form approved by theCommissioner. This report covers alldeviations experienced during the calendaryear.

Total Facility

APPENDIX MATERIAL Facility Name: ME Global Inc/Elecmetal Duluth Permit Number: 13700073‐006

Appendix A: Insignificant Activities and Applicable Requirements

Minn. R. 7007.1300, subpart

Rule Description of the Activity Applicable Requirement

3(A) Fuel use: space heaters fueled by, kerosene, natural gas, or propane.

Minn. R. 7011.0510/0515

3(D) Processing operations: Three hand grinding stations and a shotblast booth, all vented through control equipment and exhausted inside 100% of the time

Minn. R. 7011.0710/0715

3 (H) Miscellaneous: Welding equipment used for general maintenance and repair

Minn. R. 7011.0710/0715

3(I) Individual emission units at a stationary source, each of which have a potential to emit the following pollutants in amounts less than: (1) 4,000 pounds per year of carbon monoxide; (2) 2,000 pounds per year each of nitrogen oxide, sulfur dioxide, particulate matter, particulate matter less than ten microns, VOCs (including hazardous air pollutant‐containing VOCs), and ozone; and (3) 1,000 tons per year of CO2e.

Four ladle preheaters, all natural gas fired, 1MMBtu/hour

Each Sand storage silo

Minn. R. 0711.0610 Minn. R. 7011.0710/0715

Minn. R. 7008.4110, subpart

Rule Description of the Activity Applicable Requirement

2(A) and (B) Equipment venting PM/PM10 Minn. R. 7011.0710/0715

inside a building, provided that emissions from the equipment are: a). filtered through an air cleaning system; and b). vented inside of the building 100% of the time Five swing frame grinding stations

Documents

DRAFT AIR EMISSION PERMIT NO. 13700073 006 Major …