### U. S. 

### Steel Corporation MinnesotaOre Operations P.O. BOX 417 Mt. Iron, MN 55768



## CERTIFIEDMAIL 7009 0820 0001 3944 7239 August 5,201 1
Air Quality Permit Document Coordinator MinnesotaPollution Control Agency 520 LafayetteRoadNorth St. Paul,Minnesota 55155-4194
Dear Sir orMadam: Enclosed is an application for a major amendment requested by United States Steel Corporation, Minnesota Ore Operations - 

## Minntac Facility (Minntac) to Air Permit 13700005-005. The required forms are as listed below in the attachments. According to Minn. R. 7007.1500, subp. 1(A), Minntac 

## is requesting this amendment due to a significant change in monitoring, record keeping, or reporting requirements with the installation of pollution control equipment that has a higher removal eEciency forparticulate matter, sulfur dioxide, and mercury. The pollution control equipment installation replaces a wet scrubber 

## with electrostaticprecipitators,fluidized bed dry scrubbers, and activated carbon injection. As required, two copies of the application are enclosed, along with a check to cover the application fee. If there are any additional questions regarding this application, please contactme at 218-749-7203 or scampbell@uss.com Sincerely,

steph&i Campbell Environmental ControlEngineer United States Steel Corporation Minnesota Ore Operations

Cc: SuzanneBaumann-MPCA W/O attachments Attachments: SCP-01 CH-GI-01 CH-00 CH-01 CH-02 CH-03 CH-14 CH-15 Submittal Cover Page Facility Information Project Screening ChangeDescription Action Type Determination Major PermitAmendment Determination Complete Application Checklist SIP Changes and Permits

## Determination of New SourceReview Status Determination ofIncreases at Major Sources Detelminationof GHG StatusUnder New Source Review Applicability ofNew Source Performance Standards Applicability ofPart 

## 61NESHAP Applicability ofPart 63 

## NESHAP CrossingPermit Thresholds Applicability of StateRules Compliance

## Plan FacilityEmissions Summary Requirements CAM CAM Plan Process Flow Diagram StaclcVent Diagram StacldVentInformation Pollution Control Equipment Information Compliance

## Plan for Control Equipment

## Minnesota Pollution 

# @$ Control Agency 520 LafayetteRoadNorth St. Paul, MN55155-4194 

# SCP-01

# : Submittal Cover Page Permit ApplicationlNotificationl Determination Request 

## Fee Submittal Air Quality Permit Program Doc Type: PermitApplication

Instructions

### on 

### Page 6
la) AQ Facilily ID No.: 13700005 I b) AQ File No: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac 3) Choose one ofthe following options and complete the appropriate section of item 3 

# 17 Submittal is the final version of a previously-submitted permit application, additional or supplemental information needed to complete a previously-submitted permit application, or a request that the Minnesota Pollution Control Agency (MPCA) make an applicability determination. Complete Section 3A. Submittal is a replacement for a previous application that was returned as incomplete and (choose one of the following) This application is the same type of application (e.g., a minor amendment application replacing a minor amendment application or a Part 70 permit application replacing a Part 70 permit application ) or a "lower level" application (e.g.. a minor amendment application replacing a major amendment application or a state permit application replacing a Part 70 permit application) andthe scope of the project(s) has not changed from that covered inthe application that was returned

## - Complete Section 3A. This application is a "higher level" application than the one that was returned (e.g., a major amendment application replacing a minor amendment application or a Part 70 permit application replacing a state permit application) - Complete Section 3B. The scope of the project@) included inthis application is larger or different than the scope of the project@) included in the application that was returned (e.g., the project has been changed or expanded or you are including an additional project within the same application) -Complete Section 3B. Submittal is an original application for an individual Part 70 or State permit, an original application for reissuance of an individual Part 70 or State permit, or an original application for an amendment to an existing individual Part 70 or State permit. Complete Section 38. S~bmillal is a new application for a Registration Perfnil,Capped Pcrlnit, or General Permil, or a new applicar~on for an administrat've change lo an ex'sting Registra~ion. Capped, or Genera Perm~l. Co~nploto Soction 3C. Submittal is a notification required under Minn. R. 7007.1 150(C); Minn. R. 7007.1250, subp. 

### 4; or Minn. R. 7007.1350 (note that this will not apply to holders of current Registration permits or Capped permits). Complete Section 

### 3D. 

## Section 3A 

# - Request for Applicability Determination, Replacementfor a Returned Application, Recertification of a Previously-SubmittedPermit Application, or Supplement to a 

## Previously-Submitted Permit Application Usethis section only ifyour submittal is one of the following: The final version of a previously submitted permit application, incorporating changes negotiated through the permitting process, or Submittal of missing or supplemental information to a previously submitted application that was deemed condilionally incomplete, or was deemed administratively complete but additional information was requested, or Replacement for an application that was returned as incomplete, where the replacement application is for the same or "lower" type of permit or amendment (i.e., a minor amendment application replacing a minor or major amendment application, or a state permit application replacing a state or Part 70 permit application), andthe scope of the project to be permitted has not changed from that proposed inthe returned application. A request for the MPCA to make an applicability determination. Enter the "tracking number" obtained from the MPCA permit staff working on the permit. Do not use this section ifthis is the submittal of your original application, or ifyour original application was returned and you are resubmitting an application for a "higher level" (e.g. a major amendment application replacing a minor amendment application) type of permit or ifthe scope of the proposed project has changed fromthat proposed inthe returned application (use Section 3B or 3C, as applicable). Check one of the boxes below. Do not complete Sections 38, 36, or 3D. Continue with item 

### 4 of the form. www.pca.state.mn.us 651-296.6300 

# . 800-657-3864 

# . TrY651-282-5332or 800-657-3864 

# . Available in alternativeformats aq-fl-scpOl 

# . 4/6/11 Page 1of 9

## Section 

## 38

# - Applicationfor an lndividual Part 70 or State Permit, Reissuance of an lndividual Part 70or State Permit, or Amendment of a Part 70 or State Permit Use this section only ifyour submittal isone of the following:



# . An original application for an individual Part 70 or State permit, or



# . An original application for reissuance of an individual Part 70 or State permit, or Recertification of a previously-submitted permit application-Tracking No: Supplementto a previously-submitted permit application

## - Tracking No: 

### [7 Replacement for a previous application that was returned as incomplete. Tracking No. of returned application: An Applicability Determination Request



# . A rep accment Part 70 or stale perm'l application whcn a prev:ously s.~bmitted Part 70 or state permit appl:cation was returned to vou as incom~lete. andvou nave chanaed the scope of the proiect from wha~ was proposcd in Points

N

A 

### N



### A N

A

x 10= Quantity 

### N

A - 

### N

A 

### NA



### . . 

# -

. 

### . . . the application that was returned, or An original application for an amendment to your existing individual Part 70 or State permit, or A replacement amendment application when the previously submitted amendment application was returnedto you as incomplete, and you are applying for a "higher level" amendment (e.g., a major amendment application replacing a minor amendment application); or you have changed the scope of the project from what was proposed in the application that was returned. Total Points 

### N

A 

### N

A 

### N

A

Do not usethis section if this is a final version of a previously-submitted application,or ifyou are only supplementing a previously-submitted permit application; use Section 3A instead. Do not use this section ifyou are applying for a Registration Permit. Capped Permit, or General Permit, or an administrative change to an existing Registration,Capped, or General Permit. Check as many of the boxes below as apply. Do not complele Secl'on 3C. IfyoJr suomitlal also 'ncludes nol:ficationsthat do not require a perm'r applicat'on, also complete Scclion 3D. Continue with itcm 4 of the form

Existing Permit Expiration Date:

Application for a Moderate Amendment to an lndividual State or Part 70 permit

Additional Information (check allthat apply): Permit will replace an existing permit of a different type (e.g.. replacing a Capped Permit with an individual State permit, or replacing a Part 70 General permit with an individual Part 70 permit) Permit isfor construction of a new facility

## - Also complete and submit forms CH-00 and CH-01 as part of the application Form CH-00 attached Form CH-01 attached Permit's required because of a modficalion to an existing fac'lty, lnaking !he facif~ty subject for the first lime for thc reqiirement for an air emission permit

## - Also comp ete and submit forms CH-00 and CH-01 as part of the applical on Form CH-00 attached Form CH-01 attached www.pca.state.mn.us 651-296-6300 

# . 800-657-3864 

# . lTY651-282-5332or 800.657-3864 

# . Available in alternativeformats oq-fl-scp0l 

# - 4/6/11 Pose 2 of9Project is subject to Prevention of Significant Deterioration (PSD) (40 CFR 

## 5 52.21) Send a complele copy of the application to U.S. Environmental ProtectionAgency (EPA) Region V (see instructions). Contact EPA Region

### V to begin the Endangered Species Assessment process (see instructions). Permit is required because of installation or modification of a Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAP) and/or a Part 60 NSPS Affected Facility at a Stationary Sourcewith Potential-to-Emit below all permit thresholds (Minn. 

### R. 7007.0500,subp. Z.C.(l)). 

## Section 3C 

# - Application for a Registration, Capped, or General Permit Use this section only ifyour submittal is one of the following: An new application for a RegistrationPermit, or



# . An new application for a Capped Permit, or



# . An new application for a General Permit; or An administrative change to an existing Registration.Capped, or General Permit Do not usethis seclion ifthis is a final version of a previously-submitted application, or if you are only supplementing a previously-submitted permit application, use Section 3A instead. Do not use this section ifyou are applying for an individual Part 70 or State Permit. Check as many of the boxes below as apply. Do not complete Section 3D. Continue with item 

### 4 of the form

Additional Information (check all that apply): Permit will replace an existing permit of a different type (e.g., replacing a Registration Permitwith a Capped Permit; replacing an Option 8 Registration Permit with an Option D Registration Permit; etc.) Choose one of the following: Application for a Registration Permit Option A 

### [7 Option 8 Option C Option D Application for a Capped Permit Option 

### 1 Option 

### 2 Application for a Part 70 General Permit Manufacturing General Permit Fiberglass General Permit Application for a State General Permit NonmetallicMineral Processing General Permit Application for an Administrative Change to an existing Registration, Capped, or General Permit (e.g., change of facility ownership; see instructions for more)

Permit is required for constructionof a new facility 

# 17 Permit is required because of a modification to an existingfacility, making the facility subject for the first time for the requirement for an air emission permit 

## Section 3D 

# - Notification required under Minn. R. 

## 7007.1 150(C); 

## Minn. R. 7007.1 250, 

## subp. 

## 4; or Minn. R. 7007.1350. Use this seclion only ifyour submittal includesone or more of the notifications listed below. Ifyour submittal also includes an applicationfor an individual Part 70 or State permit,an amendment to an individual Part 70 or State permit, or reissuanceof an individual Part 70 or State permit, also complete Section 38. Check all applicable boxes below, then continue with item 4 of the form. A Notificationof Accumulated Insignificant Activities A Notificationof Installation of Pollution Control Equipment A Notificationof Replacementof a Unit A Notificationof Replacementof Controls with Listed Controls A Notificationof Changes That Contravene a PermitTerm Total Points Quantity

www.pca.state.mn.us 

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# . Available in alternative formats aq-fl-scp0l 

# . 4/6/11 Page 3 of 9 Points



### x 2=



### x 4=



### x 4=

x 3=

x 

### I=

## 4) 

## Total Points (add all "total points" from Sections 3A, 38, and 3C) 25 

## 5) Total Application Fee 25 x $285 

### = $7125 (total points from item 4) (fee amount) The applicalion fee amount is $285 per point, payab,e lo the MPCA. Send your paylnenr ('fee amo-nt) with yoJr submittal. The fec is not rcfundablc. per Minn. R. 7002 0016, subp. 

### 1. There may be addtional fees assesseo during processing of your request, as requiredbyMinn. R. ch. 7002. 

## 6a) Confidentiality Statement: This application does not contain material claimed to be confidential under Minn. Stat. §§ 13.37 subd. 1(b) and 116.075. Skip ltem 6b. go to ltem 

### 7. Tnis appllcalion conta:ns material wn;ch is claimed to oc confdential under Minn. Stal. 

## $5 13.37 s~bd. l(b) an0 116.075. Complcle ltem Gb. Yo~r submittal must Include both Contdential and Pub .c versions of yo.lr applicat'on. Registration Permit applicants may notclaim any portion oftheir application as confidential. 

### If applying for a Registration permit or an administrative change to a Registration Permit, you must check the first box above ("This application does notcontain.....") ConfidentialCopy of Application attached Public Copy of Application attached 

## 6b) Confidentiality Certification To certify data for the confidential use of the MPCA, a responsibleofficialmust readthe following, certifyto its truth by filling in the signature block on the following page, and provide the stated attachments. I certify that the enclosed permit application(s) and all attachments have been reviewedby me and do contain confidential material. I understandthat only specific data can be considered confidential and notthe entire application or permit. I certify that I have enclosed the following to comply with the proper procedure for confidential material: 

### Ihave enclosed a statement identifying which data contained in my application I consider confidential, and 

### I have explainedwhy I believethe information qualifies for confidential (or non-public) treatment under Minnesota Statutes. 

## 5 Ihave explainedwhy the data for which 

### Iam seeking confidentialtreatment should not be considered "emissions dala" which the MPCA is required to make available to the public underfederal law. I have enclosed an application containing ail pertinent informationto allow for completionand issuanceof my permit. This document has been clearly marked "confidential". I have enclosed a second copy of my application with the confidentialdata blackedout (not omitted or deleted entirely). It is evidentfrom this copy that information was there, but that it is not for public review. This document has been clearly marked "public copy".

Permittee responsible official: Co-Permittee responsibleofficial (if applicable) Mr./Ms. Mr.lMs. Title: Title: Signature: Signature: Date: Date:

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## 7) Submittal Certification I certify under penalty of law lhal the enclosed doc~lnonfs atlo all attachments were prepa~cd under my d~rect~on or sJpcwision in accordance w in a svstem oesial~cd to assue !hat aualifico uersonne. Drouerlv gather and eval~ate thc 

### information

~~ ~ , 

### . .- submitted. Based on my inquily oithe person or per~&~ who manage the system, or those persons directly responsiblefor gathering the information,the information submitted is, tothe best of my knowledge and belief, true, accurate, and complete. 

### I also certifv. in accordance with Minn. R. 7007.0500, 

### sub^. 2 (K)(2) and subp. 2 (K)(3), that I have reviewedthe procedures

. .. . implement&l by my facil'iy to mainrain compliancc and that thosc proccdures arc, iothe best of my know.edye and belief reasonable to 

### maintain compliancc with all app icable requiremcnls, lncluaing those lnat will oecomc applicahle 0-r 

### ng 1l1eterm of the ~ermit, 

### Permittee responsible official: Co-Permittee responsible official (if applicable)

Signature: Date: 

## 8) Package Submittal Applications, notifications, and/or requests that are submitted without authorized signature@) (under Submittal Certificationfor all applications and under Confidentiality Certification if you are seeking confidential treatment of any information inthe application); without required forms, andfor without the requiredapplication fee, will be returned. Please make your check out to the Minnesota Pollution Control Agency. Send the complete application package and check to: 

### Minnesota Pollution Control Agency Air Quality Permit Document Coordinator Industrial DivisionlAir Quality Permits Section 520 

### Lafayette Road North St. Paul, 

### MN 55155-4194

www.pca.state.mn.us 

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## Minnesota Pollution 

# & ControlAgency 520 Lafayette

### RoadNorth St. Paul, MN55155-4194 

# CH-GI-01 Facility Information for Permit Changes Air Quality Permit Program Doc Type: Permil Application Instructionson Page 3 la) AQ Facility ID No.: 13700005 Ib) AQ File No.: 2) Facility Name: United States Steel Co~poration - Minnesota Ore Operations, Minntac 3) Facility Location Street Address: 8819 

### Old Highway 169
City: 

### Mt. Iron County: St. Louis Zip code: 55768 Note: Ifthe facility is or will be located within the city limits of Minneapolis, attach a map showing the exact location. Mailing Address: 

### P. 0. Box417
City: Mt. Iron State: 

### MN Zip code: 55768 4) CorporatelCompany Owner Name: 

### U. S. Steel Corporation Mailing Address: 600 Grant Street
City: Pittsburgh State: 

### PA Zip code: 15219 Owner Classification: Private Local Govt. 

## 5State Govt. Federal Govt. Utility 5) CorporateICompany Operator (if different than owner) Name: Mailing Address:
City: State: - Zip code: 6) Co-permittee (if applicable) Name: Mailing Address:
City: State: - Zip code: 7) Legally responsible official for this permifffacility MrIMs: Thomas Icelly Phone: (218) 749-7592 Title: General Manager Fax: (218) 749-7293 At (check one): Owner Address Operator Address Emission Facility Address 

# tl Other (specify): 8) Contact person for this permit MrlMs: Chrissy Bartovich Phone: (218) 749-7364 Title: Manager -Environmental Services Fax: (218) 749-7360 At (check one): Owner Address Operator Address Emission Facility Address Other (specify): www.pca.state.mn.us 

# . 651-296-6300 800-657-3864 TTY 651-282-5332or 800-657-3864 

# . Available 

### in alternativeformats aq-pchgi01 8/27/09 Page I of 4E-mail address: clbartovich@uss.com
9) All billings for annual fees should be addressed to: MrlMs: StephaniCampbell Phone: (218) 749-7203 Title: Environmental Control Engineer Fax: (218) 749-7360 At (check one): Owner Address Operator Address 

# rn Emission Facility Address 

# 17 Other (specify) 10) Standard Industrial Classification (SIC) Code and description for the facility: Primary: 1011 

### I IronMine

### and Taconite ProcessingFacility Secondary (if applicable): 

### I Tertiary (if applicable): 

### I 11)' Primary product produced (or activity performed) at the facility is:


### 12) Facility is: 

# rn Stationary Portable 13) (reserved for future use) 

### 14) Isenvironmental review required (either an Environmental Assessment Worksheet (EAW) or an Environmental Impact Statement (EIS)) for this facility? No Yes 

### -- you may also be requiredto perform a stale airtoxics review for your facility. Pleasecall 1-800-657- 3864 or locally 651-296-6300. 15) Are you (or will you be, ifthis 

### is a new facility) required to submit a Toxics Release Inventory (Form R) under SARA Title 313 for this facility? Contact the Minnesota Emergency Planning and Community Right-to-Know Act (EPCRA) Program for more Information. at 651-201-7400. Yes 

## -Answer Question 15a 

## [XI No

# - Go onto Question 16 15a) Are you requiredto submit a Pollution Prevention Plan Progress Report in accordancewith Minn. Stat. 

## 5 115D.08? No Yes, and the most recently required progress report has been submitted Yes, but a progress report has not been submitted because: (fill in reason below)

16) Isthis facility within 50 miles of another state or the Canadian border?: Yes (specify which ones) Canada 

# 17 NO 17) Are you proposing any alternative operating or emissions trading scenarios inthis application? (see Minn. R. 7007.0800, subp. 10 and 11) 

## [XI No Yes 

## - attach a description of your proposal, including a statement on howthe proposal will meet all applicable requirements (specifically, please address any applicable New Source Review requirements

## - see Form CH-04). 18) Person preparing this permit application: Mr. 

### I Ms. Stephani Campbell Title: Environmental Control Engineer Phone: (218) 749-7203 Fax: (218) 749-7360 Date: August 5,2011

E-mail address scampbell@uss.com

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## Minnesota Pollution ControlAgency 520 LafayetteRoad North St. Paul, MN55155-4194 

### Project Screening Air Quality Permit Program Doc Type: PermitApplicalion

AQ Facility ID No.: 13700005 AQ File No: Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac

Instructions: Fill out this form last, afler you've determined the type of permit you need. Check all applicable boxes on this form that describe your proposed project and yourfacility. 

## Applicable Analyses: My project requires an Environmental Assessment Worksheet. Submittedto (who?): on (date mmlddlyyyy): My project requiresan Environmental Impact Statement Submittedto (who?): on (date mmlddlyyyy): My project requiresa Preventionof Significant Deterioration (PSD) permit, utilizesthe Plant-wide Applicability Limit requirements of 40 CFR § 52.21, andlor involves a Best Available Control Technology (BACT) Analysis (either a new analysis or revisionsto previous permit conditions). My project involves a case-by-case Maximum Achievable Control Technology (MACT) determination under section 112(g)(Z)(B) ofthe Clean Air Act Amendments of 1990 as described on form CH-07. My project involves a site-specific alternative monitoring request under 40 CFR § 60.13(i) or 40 CFR § 63.8(f) 

### [7 My project involves changes to limits or requirements that are identified as State Implementation Plan (SIP) requirements in my permit or AdministrativeOrder. (Use Form CH-15 to determine this.) My project involves ambient air dispersion modeling for criteria pollutants. Modeling protocol was approved on (date mmlddlyyyy): Modeling results submittedto (who?): on (date mmlddlyyyy): Modeling follows protocol exactly 

### [7 Modeling mostly follows protocol but with minor changes My project involves an Air Emissions Risk Analysis (AERA). Submittedto (who?): on (date mmlddlyyyy): My project requires at least one other media permit in additionto an air permit (list permits: e.g., National Pollutant Discharge Elimination System [NPDES] permit).
Application submitted to (who?): on (date mmlddlyyyy): 

## N None ofthe above 

## Industry Sector: Petroleum refining Pulp andlor paper mill Composite wood products (e.g., OSB) Metallic mining Non-beverage ethanol production 

### [7 Waste combustor Electric utility None of the above

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# . 6/15/11 Page l of 1

# @ Minnesota PollutionControl Agency WRMIT CIIANGEFORM 

# CH-01 CHANGEDESCRIPTION 

# - 520

### LAFAYETTEROAD ST. PAUL,

### MN 55155-4194 (EORMERLY MOD-01MODEICATION DESCRIPTION) hnnin~ 

## Use Form 

## CH-02to determine if a permit amendment is required for your proposed change or modification. If an amendmentisreauired. arovidebelow a descrivtion of each ahvsical and

.A A L. 

## operational change, or proposed change to existingpermit conditions, included in this avvlication. This includes addition 

## ofnewunits, removal or revlacement of existingunits, or

A A 

## - changes which mayresult in debottlenecking ofemissionunits. la) 

## AQ Facility ID

## No.: 13700005 lb) 

## AQ FileNo. 2) 

## Facility Name.: United States SteelCorporation-Minnesota Ore Operations, Minntac 3) 

## Doesyour project involve constructionor a physical or operational change to your facility? No. Go to question 5 

## [XI Yes. Construction or physical change Operational change 4) 

## Do you need your permit issued by 

## a certain date? No. Go to question 5 

## Yes. Date: Reason:

5) 

## Description of proposedproject Theproposed project consists ofreplacing CE 126, 

## wet scrubber, OII 

### EUs 313-3

### 16, 

## Agglomeration Line 6, 

## with higher efficiency controlsforremovingparticulatematter, sulfur dioxide, and mercury. This new control equipment will consist of aparallel system comprised of two ESPs (CE 179-180)

## forparticulate matter and two fluidized bed dry scrubbers (CE176-177) 

## for SO2 and acid gases. The newpollution control system will also incorporate activated carboninjection (CE178) 

## for reducing merculy. This project will also replace SV144

## with a new stack SV200.

Form CH-01 

## Page 1

## of 3

## 6) Attach Form CD-01 to specify which applicablerequirementsneed to be added or deleted from your permit.

Form CH-01 Page 2 

### of 

### 3

# Cb Minnesota Pollution 

# @ controlagency 520Lafayette Road North St. Paul,MN 55155-4194 

### Action Type Determination Air Quality Permit Program Doc Type: PermitApplication

la) AQ Facility ID No.: 13700005 lb) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations. Minntac Answer the questions on this form, referringto and completingthe additional forms as directed, to determine if a permit or amendment is required (and if so what type), or if a notification is required. 3. Does the proposed change or modification require a majoramendment? Complete Form CH-03 and all forms referenced therein. Yes. Go to question 8. No. Go to question 4.
4. Does the entire proposed change or modification consist only of insignificant activities described in Minn. 

### R. 7007.1300, subparts 2 andlor 3,or conditionally insignificant activities listed in Minn. R. 7008.4100 andlor Minn. R. 7008.4110? I Ycs. The proposed change qual~fes as ail insignificant lnodif~carion Jsc Form CH-I2to dnrermnc ifnorifcation to the MPCA IS rcqu'red. If nor~fcalion is required go to Form CH-14 lodetetmnn wnat tnLs1 DC s~btn'lted No. Part ofthe project is not one of the listed insignificant activities listed in Minn. 

### R. 7007.1300, subp. 2 andlor 3. Go to question 5.
5. Can the change be done through an administrative amendment? Use Form CH-08 to determine Yes or No. Yes. Go to Form CH-14to determine what must be submitted. 

# 17 No. Go to question 

### 6.
6. Canthe change be made through the "contraveningpermitterms" provision? Use Form CH-09 to determine Yes or No Yes. Go to Form CH-I4to determine what must be submitted. No. Go to question 7.


### 7. Is a minor or moderate amendment needed? Complete Form CH-10to determine Yes or No. Yes. Go to question 8. No. Complete Form CH-12 to determinewhat notification or recordkeeping requirements apply.
8. Complete Form CH-11to determineyour status with regard to crossing permit thresholds, and indicate that status below. This change can be made through the permit amendment provisionsof Minn. R. 7007.1450 or 7007.1500, using the forms indicated on Form CH-14. This change requires issuance of a Title 

### V or State operating permit. Include a completed Total Facility Application.


### 9. Complete Form CH-I3 to determinewhat state rules apply to the equipment you are adding or the changes you are proposing.
10. Complete Form CH-00, summarizing the category of change and industry type.

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## Minnesota Pollution 

# &'Control Agency 520 LafayetteRoadNorth St. Paul, MN55155-4194 

## Major PermitAmendment Determination Air Quality Permit Program Doc Type: PermitApplication
Instructions on Page 3 la) AQ Facility ID No.: 13700005 I 

### b) AQ File No. 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac
To answer the questions posed inthis form, you will have to complete the additional forms referenced inthe individual items. This form refers to proposed changes and modifications. A "modification" as defined in Minn. R. 7007.0100, subp. 14, includes: A. any change that constitutes a title 

### I modification



### ... ; or B. any physical change or change inthe method of operation of an emissions unit, emission facility, or stationary source that results in an increase inthe emission of a regulated air pollutant. A "change" is a change to permitterms or conditions, inthe absence of a modification as described above.

3) Is the proposed change or modification a title I modification? It is ifthe answer to any of the following is "yes": 3a) Is the proposed change or modification subject to New Source Review? Use and submit Forms CH-04, and CH-04a or CH-04b, as applicable. Yes 

# Lxl No 3b) Is the proposed change or modification a modification or reconstruction as defined for New Source Performance Standards? Use and submit Form CH-05.



## I!

Yes 

# Lxl No 3c) Is the proposed change or modification a hazardous air pollutant modification under Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs)? Use and submit Form CH-06. Yes No 3d) Is the proposed change or modification defined as construction or reconstruction under Part 63 NESHAPs? Use and submit Form CH-07. Yes No 4) Does this modification change any permit conditions or amend existing permit requirements related to monitoring, reporting, or recordkeeping other than adding new requirements, eliminating the requirements if they are rendered meaningless because they apply to emissions that will no longer occur, or changing test methods if both the new and the old test methods are considered valid for the pollutant and source category (Minn. R. 7007.1500, subp. l(A))? 

# rn Yes. Use and submit Form CD-Olandlor CD-05 to document such requirements. No 5) Does this modificationestablish or amend any source-specific permit conditionthat is requiredto be based on a case-bycase determination of an emissions limit or standard, an ambient impacts analysis, visibility, or increment analysis (e.g., a modeling-based limit, the requirement to operate a specific control device for a specific emission unit, specific operating parameters for a control device, a specific control efticiency, Best Available Control Technology (BACT), Maximum Achievable Control Technology (MACT), etc.) (Minn. R. 7007.1500, subp. I@))? Yes. Use and submit Form CD-01 and/or CD-05 to document such conditions. 

# rn No

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# . 5/23/11 Page 1 of 36) Does this modification establish or amend any permit terms or conditions for which there is no underlying applicable reqiirement and tnat you have assumcd to avoid an applcable req~iremenr to which you wou d 

### otherwise oc sub'ect? S.~ch limits are ~s~al 

## v synthetic minor 1:mitalionss~ch as a limit on hours of operation. Plcasc notc that if yo^ would like to add equipmcnl under a-11 cxistng emissions cap or lmit,and tne permit does not expl'c'lly pre-authorize such additons, that is cons~dereo amenoing the limit or emissions cap. (M~nn. R. 7007.1500, subp. I&)). Yes. Use and submit Form CD-01 andlor CD-05 to document such conditions. 

## El No 7) Does this modilicat'on cstablish, amend renew, or d;strib~tc a Plantwide Applicability Limit (PAL) under 40 CFR 

## 5 52.21(aa)? (Th s is only available to exstng ma.or sourccs undcr New Source Review.) Yes. Use and submit Forms PAL-01 (and the forms referenced within PAL-01) and CD-01 to document conditions. (As of the date of this form, the PAL cover page (PAL-01) and the form for determination of a PAL (PAL-02) have been completed. The remaining forms for renewal, expiration allocation, and increasing a PAL, are not yet available.) 

## €4 No 

### 8) Is this modification subject to classification as a major permitamendment under any otheragency rule? Yes 

## €4 No 

### 9) Does this modification seek to establish or amend 

### a federally enforceable emission cap (such as a synthetic minor limit which limits hours of operation) which avoids classification as a part 70 source? 

### [7 Yes. Use and submit Form CD-01 andlor CD-05 to document conditions. 

# !a No 

### If you answered "Yes" 

### to one or more of the above questions, a major permit amendment is required.

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## Minnesota Pollution ControlAgency 520 Lafayette

### Road North St. 

### Paul, MN55155-4194 

### Permit Amendment Application Requirements Air Quality Permit Program Doc Type: PermitApplication 

### Instructionson Page

### 3
la) AQ Facility ID No.: 13700005 Ib) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesot a Ore Operations, Minntac 3) Minn. 

### R. 7007.0600 describes what a permit application must include. The items inthe following list constitute an administratively complete application, but do not necessarily mean that the application is technically complete for the purpose oftaking final permit action. Please complete the following to verify that you have included all the indicatedforms and information.

CH-04a Dererminat~on of Increases at Major Sources As drecred on Form Ch-04

. Cd-04b Dererm'narion of ncreases at Mnor So~rces

.
. 

# B IAsczorm CH-04

.. .. .. 

# a I 

# I CH-04c Determination of Greenhouse Gas Status Under New 

# I For all apDlications for a major, moderate, or minor amendment

-- 

# 111

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# . 6/15/11 Po2e 1of 3 

# .o [XI BACT analvsis When the proposed change or modification is major under NSR CH-05 Applicability of New Source Performance Standards For all applications for a major, moderate, or minor amendment As directed on Form CH-04a
As directed on Form CH-04b or CH-04d p~ 

# El El

[XI 

## • 

# Kl - - CH-04d Calculating the Net Emissions Increase Under New Source Review CH-04e Required Elements for Prevention of Significant Deterioration (PSD) Permit Application

Highlighted copy of applicable subpart(s) of 40 CFR Part 60 CH-06 Applicability of Part 61 NESHAP Highlighted copy of applicable subpart(s) of 40 CFR Part 61 CH-07 Applicabilitv 

### of Part 63 NESHAP When so indicated on CH-05 For all applications for a major, moderate, or minor amendment When so indicated on CH-06 Forall applications for 

### a major, moderate, or minor amendmentGI-03 Facility and StacWent Diagram When Required When so indicatedon CH-07 For all applications for a major, moderate, or minor amendment For all applications for a maior, moderate, or minor amendment For all applications for a major, moderate, or minor amendment For all applications for a major, moderate, or minor amendment, except if no emission calculations are required Whenever the proposed change or modification involves changes to emissions. May submit CD with application, or be prepared to email to MPCA staff upon request

## - indicate choice on GI-07 When increasing Hg emissions from taconite production secondary metal production, fuel combustion for electricity generationor industrial boilers, or

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# - 800-657.3864 651-282-5332or 800-657-3864 Available in alternativeformats oq-p-chi4 6/15/11 Pase 2 of3 Form/Requirement Highlightedcopy of applicable subpart(s) of 40 CFR Part 63 CH-11 Crossing Permit Thresholds CH-I3 Applicability of State Rules CD-01 Compliance Plan GI-07 Facility Emissions Summary Electronic spreadsheet containing all calculations
HG-01 Mercury Releases to Ambient Air Included 

## IsI €4 €4 

# !a

p~~


### [XI Not Included 

## €4



## €3
[SI
GI-09H Requirements:CAM
CAM Plan EMS-00 EMS Permit Qualification -



# W When adding or changing control equipment or controlled emission units at a Part 70 source When indicatedon GI-09H When proposing to incorporate EnvironmentalManagement System (EMS)

## Instructions 

## for Form 

## CH-I4 la) AQ Facility ID No. 

# -- Fill inyour Air Quality (AQ) Facility identification (ID) Number (No.). This is the first eight digits of the permit number for all permits issued under Minn. R. ch. 7007. 

### I b) AQ File No.

# -- Fill inyour 

### AQ File Number. This number can befound inthe "cc" section of correspondence from the Minnesota Pollution Control Agency (MPCA) When Required



### 2) Facility Name 

## -- Enter your facility name. FormIRequirement Included



### 3) Complete each line of the table by checking the appropriate box, indicating that the specified form or attachment is included or not included inthe application. Not Included

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# . 6/15/11 Page 3 of 3 When adding or changing fugitive sources To describe new, removed, or changed continuous monitoring systems When requesting a new Plantwide Applicability Limit (PAL) under NSR When requesting a new Plantwide Applicability Limit (PAL) under NSR
When requesting a new Plantwide Applicability Limit (PAL) under NSR Varies -see 

### htt~://www.~ca.state.mn.us/ox~a691 If there is an increase of any criteria pollutant greater than 250 tons per year, or if it is a proposed electric production facility greater than or equal to 25 MW, or if it is an ethanol facility increasing production by 5 million gallons per year, then an AERA will likely be needed 

## - see htt~:l/w.~ca.~tate.mn.us/tchv42b IfAERA is needed, or if project is subject to PSD unless only pollutant involved is a Volatile Organic Compound. See 

### htt~:/lw.~ca.~tate.mn.us/nwah421 GI-05D Fugitive Emission Source Information ME-01 Continuous Monitoring System Information 

# 1 PAL-01 PAL Cover Page PAL-02 Determination of Plantwide Applicability Limitfor Major NSR Sources MI-02c Modeling for Plantwide Applicability Limitations Environmental Assessment Worksheet submitted Air Emission Risk Analysis submitted (AERA) submitted

Dispersion modeling submitted 

## !xi 

## ISI 

# El El !xi 

# ix Kl



## E

## Minnesota Pollution ControlAgency 520 LafayetteRoadNorth St. Paul, MN55155-4194 

### SIP Changes and 

### Permits Air QuaUty Permit Program

la) AQ Facility ID No.: 13700005 

### I b) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac


## Section I 1.1 Does your facility have source specific State Implementation Plan (SIP) conditions contained in a Part 

### 70 permit or a federally enforceable state operating permit or has your facility been issued an Administrative Order (Order) to ensure compliance with a national ambient air quality standard (NAAQS)? (This would include permit conditions labeled "Title I condition: SIP for [pollutant] NAAQS). Ifyour facility is listed inTable 1 below, you have source specific SIP conditions. Yes. Check all applicable pollutants and continue with Section II 

### [7 Sulfur Dioxide (S02) Particulate matter less than 10 microns (PMro) Lead 

## 5 No. Stop here, and submit this form with your application for a permit amendment or operating permit reissuance 

## Section II 11.1 Where are the SIP conditions that apply to yourfacility? 

# 17 Inthe current operating permit In the Order In both the current operating permit and the Order 11.2 This permit application isfor Reissuance of the operating permit An amendment to the current operating permit Whether you are proposing changes through an application for a facility modification, or ifyou are submitting a reissuance application and there have been changes at your facility that are not included inthe current operating permit or the Order, complete the rest of this form considering those changes as the 'proposed change.' Ifyour facility is subject to the Order, Minnesota Pollution Control Agency (MPCA) will initiate a SIP revision totransfer the Title I conditionsfrom the Order to the Permit. 11.3 Does the proposed change involve equipment or operating parameters that are subject to a Title 

### I SIP condition in you1 permit or a requirement from your Order? Yes No 11.4 Does the proposed change add an emission unit@)or stacklvent that will emit the criteria pollutant(s) identified in Section I? Yes 

# iI No 11.5 Does the proposed change increase the emission rate of the criteria pollutant(s) at any ofthe existing emission points (emission unit, control equipment or stacklvent)? Yes No 11.6 Does the proposed change increase the overall emission rate of that criteria pollutant at the facility? Yes No

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# . 6/26/08 Page l of 3

## Section 

## III Review the SIP modeling parametersfor your facility. These are usually found in an appendix to your permit or inyour Order. For the proposed change at your facility, check all that apply: Addition of new emission point@)for the criteria pollutant Removalof existing emission point@) for the criteria pollutant Change in one or more modeled stacklvent heights or diameter Increase in stack height 

### [7 Increase in stack diameter Decrease in stack height 

### [7 Decrease instack diameter Change in modeled air flow rate@) lncrease in air flow rate@) Decrease in air flow rate@) Change in one or more modeled emission rates lncrease in emission rate@) Decrease in emission rate($ Change in location of one or more emission points Change in exit point temperature lncrease intemperature Decrease intemperature Change in building locations or dimensions Other No change to current modeling parameters If there are any changes to the modeling parameters, you will needto demonstrate that the plume dispersion characteristics of the criteria pollutant will be equivalentto or belterthan the dispersion characteristics modeled using the parameters included as noted inthe appendix of your permit or inyour Order. In many cases you will need to remodel to show attainment with the NAAQS. However, in some cases you may be able to provide a written justification for improved dispersion characteristics. Ifyou will need to do modeling, it is recommended that you check the MPCA website or contact MPCA staff for guidance oncurrent SIP modeling. SIP modeling requirements may be different than modeling for other programs and may have changed since previous modelingwas done for your facility. See the MPCA's on-line SIP and modeling information at 

### http://www.pca.slate.mn.uslair/sip.html and 

### http://w.pca.state.mn.us/air/modeling.html for current contact information.


## Section IV Will the proposed change require a SIP 

### revision? In general, a SIP revision is not required if you are making a change to the facility that does not increase, from any emission point, the emission rate of the criteria pollutant or alter equipment or parameters used as the basis for modeling of the criteria pollutant. Ifvou answered "Yes" to any ofthe auestions in Section I1 or have identified changes to the modeling parameters for your facility in section 

### Ill,you will likely nekd a ~l~revision for your project. If

### a SIP revision is required for a modification amendment, you must submit a maior amendment auplication. Ifthe proposed change includes an increase in emissions of the criteria pollutant or if it is new construction, the current i/tle 

### I SIP condit/ons inyour permit or the conditions inyour Order for your facility must befollowed untilthe SIP revision is approved by U.S. Environmental Protection Agency (EPA). If the proposed change will reduce emissions or will provide better modeled dispersion characteristics that change may proceed with MPCA and EPA approval. When 

### a SIP revision is part of your permit reissuance or amendment, approval of the reissuance or modification application will include more steps and take more time than the general process for a permit issuance. The SIP revision includes reviewand approval of the permit application by MPCA, including public notice of the permit. The SIP revision requires a public notice (which may occur concurrently with the permit notice of the draftlproposed permit); EPA generally does a preliminary review ofthe SIP revision at this time. There is an opportunity for interested partiesto request a public meeting during the public notice period. Afler MPCA's public notice periodends for the draftlproposed permit, MPCA submits the SIP revision to EPA for a formal review and approval. Final approval of the SIP revision occurs when EPA publishes the revision as a final rule in the federal register.

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### Table 

### 1 Facilitieswith Source Specific SIP Conditions

Twin Cities 7-Counly Area 

### Area Eagan Rochester

RosemountlPine Bend St. Paul ParWAshland 

### Pollutant Lead PM 10

St. Paul (Childs Road and Red Rock Road) 

### Facility Gopher Resources Corporation Rochester Public Utilities

Rochester Public Utilities

. 

# ( 

# . Cascade Creek 

# I /
= Silver Lake 

# I
Associated Milk Producers

## - Rochester Mayo 

## - Franklin Heating Station 

# 1 I IBM

## - Rochester 

# 1 

# I ( Olmsted Waste to Energy 

# I I Mayo - St. Mary's Hospital

Federal Cartridge Company-Anoka 

# I

Hoffman Enclosures Inc. Xcel Energy



# . lnver Hills Generating Plant 

# - Riverside Generating Plant GAF Materials Corporation



# I I GerdauAmeristeel US Inc. -St. Paul Mill

SO 2 SO 2

PM1o

GreatWestern Dock and Terminal Lafarge North America (Red Rock and Childs Road Terminals) NRG

## - Minneapolis Energy Center Minneapolis LLC Flint Hills Resources LD - Pine Bend Refinery Marathon Petroleum Ca LLC Aggregate Industries,Yard 

### A Cenex Harvest States Coop- Elevator2 Commercial Asphalt, Inc. Plant 905



# I / Met CouncilWastewater Treatment Plant St. PaulTerminals

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### aq-f2-ch15 

# . 6/26/08 Page 3 of 3

# m! Minnesota Pollution 

# & Control Agency - 520 LafayetteRoad North St.Paul,MN 55155-4194 

### Determination of 

### New Source Review Status Air Quality Permit Program Doc Type: Permit Application
la) AQ Facility ID No.: 13700005 

### I b) 

### AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac 3) Is your facility defined as one of the following types of facilities? Some standard industrial classification (SIC) code(s) applying to specific categories are given in parenthesesto assist you in classifying yourfacility. The SIC codes provided are not meant to be an exhaustive list offacilities included in the category.



# . Coal Cleaning Plants-With Thermal Dryers Krafl Pulp Mills (2611,2621) Portland Cement Plants (3241) e Primary Zinc Smelters (3339) Iron and Steel Mills (3312) Primary Aluminum Ore Reduction Plants (3334) Primary Copper Smelters (3331) 

# . Municipal Incinerators Capable of Charging More Than 50 Tons of Refuse per Day Hydrofluoric Acid Plants (2819. 2899) 

# . Sulfuric Acid Plants (2819)



# . Nitric Acid Plants (2873) 

# . Petroleum Refineries (2911)



# . Lime Plants (3274) 

# . Phosphate Rock Processing Plants (1475)

• Coke Oven Batteries (3312) 

# . Sulfur Recovery Plants (2819) I Carbon Black Plants (Furnace Process, 2895) Primary Lead Smelters (3339) Fuel Conversion Plants 

# . Sintering Plants* 

# ~
Secondary Metal Production Plants (334X) Chemical Process Plants (28~)" 

# ~

Fossil-Fuel Boilers (or combination thereof) Petroleum Storage &Transfer Units, Total Storage 

# ~ totaling morethan 250 MMBtuIhr heat input Capacity over 300,000 Barrels Taconite Ore Processing Plants (1011) 

# . Glass Fiber Processing Plants



# . Charcoal Production Plants (2819, 2861) Fossil Fuel-Fired Steam Electric Plants of more than 250 MMBtuIhr heat input 

### * Processingof fine grain materials info coaarerlurnps (performedpt?manly on ores). **Does notinclude ethanolproduction facilities that produce ethanol 

### by naturalfermentation included

### in NAlCS codes

325193 or312140. Yes, my facility is classified as one ofthe 28 sources listed above. A listed air emission source having a potentialto emit (PTE) 100tons per year (TPY) 

### or more of any single regulated pollutant (except carbon dioxide equivalents (C02e)) is considered a major stationary source. For sources classified as one of the 28 listed, fugitive emissions must be included in the PTE. For item 

### 4 ofthisform, and for Form CH-04b if applicable, a 100-TPY emissions threshold must be used for all regulated pollutants except COze; for COze, the threshold is 100,000 TPY. 

## IJ No, myfacility is not classified as one of the 28 sources listedabove. An air emissionsource not classified as one of the 28 sources listedabove and having the PTE 250 TPY or more of any single regulatedpollutant (except CO2e) is considered a major stationary source. For item 4 ofthis form, and for Form CH-04b if applicable, a 250-TPY emissions threshold mustbeusedfor all regulated pollutants except C02e;for COze, the threshold is 100,000 TPY. 4) Is your proposedchange subject to regulation for greenhouse gas (GHG), as defined in40 CFR 

## 5 52.21(b)(49)? To answer this question, you mustcomplete Form CH-04c. Yes. Go to question 5. No. Go to question 6 5) Isthe current federally enforceable PTE (including GHG) of your facility greater than or equal to the thresholds identified in question 3? Yes. Go to question 7 

### [7 No. Go to question 9.
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# . 6/15/11 Page 1of 26) Isthe current federally enforceable PTE (excluding GHG) of your facility greater than or equal to the thresholds identified in question 3, making your facility a major stationary source? 

## IXI Yes. Go to question 7. 

### [7 No. Go to question 9 7) Is your facility currently covered by a permit that contains a Plantwide Applicability Limit ("actuals PAL") as defined at 40 CFR § 52.21(aa)(Z)(i) and (v)? Yes. Go to question 8. No. Go to question 

### 9. 8) Are you able to continue to meet the emissions limits set by the Plantwide Applicability Limit after the project? Yes, hew So.ircc Revew is nor appl'cable to rhc proposed change11nod;f cdl'on. You nee0 not complete 

### mc remainder of this form. You musr dclcrn1:ne 

### ifan amendment is necdcd ~nder M;nn R. 7007.1 150 - 7007 l5UO. No. You must complete a Best Available Control Technology (BACT) analysis for all maior and significant emissions un'ls at youso~rce. Ifinslallation of BACT sf'lf does not allow yo^ 1oinsr:~litnc cniiss'on~nir arid manrain compliance w'rh your PAI., you may app y for 

### an increase inyour PA



### ... Please scc the M'nnesora Pol

### lion Control Agency fact sheet on PALSat hltp://ww~.~ca slate.mn 

### uslndex.~hp/view-document.htm17qid=2097 or Form PAi-05fr~ol vct 

### available 3s oflllc datc of 

### 111i.sfor171). fur 0~'dance on increasing a PAL 110 not complele tne



## .. 

# - remainder of this'for;. 9) Synthetic Minor Source: Are you proposing new or revised federally enforceable limits such that the entirefacility (including theproposedmodification) will become or remain a minor source? Yes. Submit an appllcal on for a ma;or amendment. Refcrto 

### ~:llwww.pca.state.mn.us/z'hvd8c for guioancc on setting .'Inits Put proposed 'mils and proposed comp.iance demonsrration on Form CD-01. 30 notcomplete Forms

No. Ifyou answered "Yes" to question 5 or question 6, go to Form CH-04a If you answered "No" to question 5 or question 6, go to Form CH-04b.

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## Minnesota Pollution Control Agency 520 LafayetteRoad North St. Paul, MN55155-4194 

### Determination of 

### Increases at Major Sources Air Quality Permit Prosram Doc Type: Permit Application Instructions 

### on page

### 5
la) AQ Facility ID No.: 13700005 

### I b) 

### AQ File No.: 2) Facility Name: United States Steel Corporation-MinnesotaOre Operations, Minntac Use this Form to calculate emissions increases at existing major New Source Review (NSR) sources. Ifthe facility is not a majo~ source under NSR, use Form CH-04b. 

### 3) Referto Question

### 4 on 

### Form 

### CH-04. Isthe proposed change subject

### to regulationfor greenhouse gas 

### (GHG)? Yes 

## - Include carbon dioxide equivalents (C02e) emissions when completing the tables on this form. 

# IXI No 

## - Do not include C02e when completing the tables on this form - Leave the C0ze entries blank, or enter 

### "NA 4) Modified, replacement, andlor debottlenecked emission 

### units Use Table 1 to document the emissions increase for individual units, tanks, or fugitive sources using the calculation method found in40 CFR 

## 5 52.21(a). The procedure for calculating whether a significant emissions increase will occur depends on the type of emissions unit being modified. See instructions for calculating emissions increases. Complete a separate Table 1 for each modified, replacement, or debottlenecked emission unit. Ifyou base your calculations on projected actual emissions (rather than future uotential emissions). include (in the suace urovided at the end of Table 1)the title and date of the business document onwhich you based your pkjections.jf you exclude emissions from your projected actual emissions, include (in the sDace urovided at the end of Table 

### IIa descriotion ofthe excluded emissions. includina an exulanation of whv these were'exclubed. Attach an additional sheet if necessary. Make additional copies if more thanthree ;nits are affected. Summarize the total increases for each pollutant inTable 2. Attach your calculations.
Table 

### 1

Total Reduced Sulfur 

# I I I 1 1 Fluorides Sulfuric acid mist Hydrogen Sulfide (HzS) ~4.86 NIA NIA including H2S 

# I NIA 

# I NIA 

# I I I Total Reduced Sulfur Compounds including HzS MWC Organics MWC Acid Gas MWC Metals



### " Titleldate of document(s) used as basis for projected actuals: This is an emission reduction project consisting only of the installation of hiaher removal efficiencv controls. No EU are 4.86 NIA NIA

MSW Landfill Gas

being modified, ;eplaced, or debottlenkcked. Only pollutants affected (reduced) by this change are included as applicable. 

### '* Description of emissions excluded from projected actuals: www.pca.state.mn.us 

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# . 6/15/11 Page I of 8 NIA NIA NIA NIA 0

NIA NIA NIA NIA NIA 12/31/2007

NIA COZ~ {'I NIA NIA

# "Includes organic and inorganic condensable parflculale matter 

# " C02e =carbon dioxide equivalents. Thisis the weighted sum of carbon dioxide, methane, nilrous oxides, sulfur hexafluoride, hydrofluorocarbons. andperfluorocarbons, based on each gases global warmingpolenfial.

MWC Metals 

# I I 1 I MSW Landfill Gas C02e *Titleldate of document(s) used as basis for projected actuals: 

### ** Description of emissions excluded from projecled actuals:

ProjectedActual* or Exclusions from Future Potential Baseline Actual

MWC Organics MWCAcid Gas MWC Metals MSW Landfill Gas C02e 

### * Titleldate of document(s) used as basis for projected actuals: 

### ** Description of emissions excluded from projected actuals: wWw.pca.state.mn.us 

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# . 6/15/11 Page 2 of 8www.pca.state.rnn.us 

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# . 61 151 11 Page 3 of 8Pollutant PM PMio PM2.5 NO, 

## so2 

## co Ozone (VOC) Lead Fluorides Sulfuric acid mist Hydrogen Sulfide (HzS) Total Reduced Sulfur including H2S Total Reduced Sulfur Compounds including HzS MWC Organics MWC Acid Gas MWC Metals MSW Landfill Gas C02e 

### 5) Installation

### or Construction 

### of New Emission 

### Units Table

### 2

# - Summary ofTable 

### 1 Results

Use this table to document the potential emissions (PTE) from each new emission unit, tank, or fugitive source. Copy this table if more than five units are added. Attach your calculations. Table 

### 3

Pollutant PM NIA NIA NIA

PMio PM2.5 

# 1 NIA NIA NIA

NO, 

# 2 Total

SO2 

## co Ozone (VOC) PTE (tpyj

Total Reduced Sulfur

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# . 6/15/11 Page4 of 8 WE)(~PY) (PTE) (tpy) 

### (PTE) (tpy) PTE (tpy) (~PY)

### 7) NSR Status of Proposed Modification 6) 

### Totals Table 4 

## - ProjectSummary

replacement,or Potential Emissions SignificantThresholds Pollutant

7a) Referring to Table 4, does the number in Column D exceed the threshold in Column 

### E, for any pollutant? No. Done with this form. Attach all calculations and required documentation (as describedwithin this form). 

### IJ Yes. Go to question 7b. 7b) In Table 5, list each pollutantfor which the number in Column D of Table 4 exceeds the threshold in Column E of Table 4. For each of those pollutants, indicate whether or not you will propose and accept a limit such that the associated threshold in Column E is not exceeded. Refer to 

### hltp:l/www.~ca.state.mn.uslzih~dBc for information on determining and proposing limits. MWC Organics MWC Acid Gas MWC Metals MSW Landfill Gas C02e

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# . 6/15/11 Page 5of 8 Note 1: July 31, 1987,the NationalAmbient Air Quality Standard for TSP (PM) was repealed and replacedwith a standard for PMio. The significant levels inthis table are as they appear inthe Code of Federal Regulations, March 1994. A source may not be required to comply with Nonattainment NSR for TSP increases above 25 tpy, but may be for PMlo above 15tpy. Note 2: MWC Organics means Municipal Waste Combustor Organics. These are defined as total tetra-thro-octa-chlorinated dibenzo-para-dioxins and dibenzofurans. Note 

### 3: MWC acid gases are measured as the sum of sulfur dioxide and hydrochloric acid. Note 4: MWC Metals are measured as particulate matter 0 0 0 0 0 0 0 0 0 0 0.0000035 40 15 50 75,000

# / Yes. Describe the limit in item 7c. No. Complete Form CH-04d for this pollutant. 

# 1 

# rn Yes. Describe the limit in item 7c. 

### [7 No. Complete Form CH-04d for this pollutant. Table 

### 5

# - Pollutant Status



# I Yes. Describethe limit in item 7c. No. Complete Form CH-04dfor this pollutant. Pollutant exceeding the threshold (column e) in Table 4



# I Yes. Describe the limit in item 7c. No. Complete Form CH-04d for this pollutant. 

# I Yes. Describe the limit in item 7c. No. Complete Form CH-04d for this pollutant.

Are you proposing a limit such that the threshold in column e is notexceeded?

7c) For each pollutantfor which you are proposing a limit, briefly describe the limit@) you are proposing. Also include the limit($ on Form CD-01, with your proposed method of demonstrating compliance.



## Instructionsfor 

## Form 

# CH-04a Fill out Form CH-04 to determineyour current status under New Source Review. Ifdirected in CH-04, complete CH-04a. la) 

### AQ Facility ID No. --Fill in your Air Quality (AQ) Facility IdentificationNumber (ID) Number (No.). This is the first eight digits of the permit number for all permits issued under the operating permit program. 

### Ib) 

### AQ File No. 

# -- Fill inyour AQ File Number. This number can befound inthe "cc" line of correspondence from the Minnesota Pollution ControlAgency (MCPA). 

### 2) Facility Name

# -- Enteryour facility name. 

### 3) Isthe proposed change or modification subject to regulation for GHG? -You should have answeredthis question on Form CH-04, question 4. Ifyou answered "yes," thenfill out this form (CH-04a) for ail pollutants listed. Ifyou answered "no," then the carbon dioxide equivalents (C02e) emissions requested on this form are not relevant. Enter "NA for C02e entries, or leave them blank. However, ifthe change is subject to regulation for GHG, and you do not fill inthe C02e emissions, your application is not complete. 4) Modified, Replacement, and/or Debottlenecked Emission Units Table 

### 1 Complete a separateTable 1for each existing individual unit (which can include emissions units, tanks, or fugitive sources) affected by the project.At the top leflof the table, enter or select "EU (emissions unit), 

### "TK (tank), or "FS" (fugitive source) and enter the number as it exists inyour current Part 70 permit (or Part 70 application if your Part 70 permit has not been issued). Indicate whether the unit is being modified, replaced, or debottlenecked (see descriptions below). Modifications atexisting emissions units: The emissions increase is determined by calculating the difference between the projected actual emissions and the baseline actual emissions. "Projectedactualemissions," defined at 40 CFR § 52.21(b)(41), means the maximum annual rate, intons per year, at which 

### an existing emission unit is projectedto emit a regulated pollutant in any one of the five years (12-month period) following the date the unit resumes regular operation after the project. Ifthe project increasesthe emission unit's design capacity or potential to emit, and the potential to emit the regulated pollutant at full utilization of the unit would result in a significant emissions increase or net emissions increase,then the projected actual emissions are the maximum annual rate at which the existing emission unit is projectedto emit a regulatedpollutant in any one of ten years following the date the unit resumes regular operation. Projectedactualemissions include fugitive emissions to the extent they are quantifiable, and emissions associatedwith startup, shutdown, and malfunction. 

### DOnot take air pollution control e&ipment into account except as allowed by Minn. R. 7007.1200, subp. 2. You may nottake credit for proposedor 

### non-federally-enforceable pollutioncontrol equipment.
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# . 6/15/11 Page 6 of 8

### U. 

### S. Steel

## - Minntac Line 

### 6 Waste Gas Baseline Determination

TPV 

### SOX PMlO 

### VOC PM F



### Baseline Dates 

### 2006 455.4 

### 329.3 22.8 248.0 

### 2007 4.80 

### 2005 466.8 337.6 23.3 254.2 

### 2006 4.92 

### Average 

### 461.1 333.5 23.0 251.1 4.86
Data from annual air emissions inventory with the exception offluoride which was determined from the highest stack test duringsame baseline period.

## Minnesota Pollution 

# @$ ControlAgency 520 LafayetteRoad North St. Paul, MN55155-4194 

### Determination of Greenhouse Gas Status under New Source Review Air Quality Permit Program Doc Type: PermitApplication 

### Instructionson page

### 5
la) AQ Facility ID No.: 13700005 I b) AQ File No.: 

## - 2) Facility Name: United States Steel Corporation- Minnesota Ore Operations, Minntac 3) Calculatethe potentialto emit (PTE) of greenhouse gases (GHG) emissions for your existing facility, before your proposed change, including the mass emissions of individual GHGs (columns a -

## 9, the sum of the mass emissions of individual GHGs (column g), and the carbon dioxide equivalent (C02e,column h). See Form EC-I7for guidance in calculating the individual mass emissions and the C02e. Complete your calculationson a spreadsheet; transfer the current PTE to Table 1 below, and include the calculation spreadsheet in your application package. 

### Table 

### 1



## H Yes. Go to question 5. No. Go to question 6. a) -

Carbon Dioxide ((332) (tPY)
2,256,312 17.76 4.03 0 0 0



### 5) Isthe mass sum of the individual GHGs (column g) greater than either 100tpy (if you answered "yes" to question 3 on Form CH-04), or 250 tpy (if you answered "no" to question 3 on Form CH-04)? Yes. Go to question 8. Do not answer questions 6 or 7 or complete Tables 2 or 3. No. Go to question 6. 4) Is the number you entered for C02e greater than 100,000 tpy? 9) Mass Sum of GHGs (~PY)

2,254,701

6) Use Table 2 to document the emissions increase for individual units, tanks, or fugitive sources affected by the proposed modification. See instructions for calculating emissions increases. Make additional copies of Table 2 if more than four units are affected. Summarize the total increases for each pollutant inTable 3. Attach your calculations (both in an editable spreadsheet format, and a hard copy printout). Answer the question following Table 3. h) Carbon Dioxide Equivalent

(COze)

(tPYL 2,256,312



### Table 2

PFC SF6 C0~e

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# .61 151 11 Page f of 7 Total (tpy) Potential emissions (tp] Pollutant 

### c02 CH4 N20 HFC Potential emissions (tpy) Potential

-- emissions (tpy) Potential emissions (tpy)Exclusions from BaselineActua

*Title/date of document(s) used as basisfor projected actuals: This project is replacing pollution control equipment and GHG emissions are not affected


# . There are no EUs being modified. replaced, or debottlenecked.
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# .

h1151 11 Pase 2 of 

### 7 Table 

### 3 -Summary

Pollutant

C02 CH4 N20 HFC PFC SF6 Total Mass GHG (sum of above 6 numbers) Potential Emissions ("Total" from Table 

### 2) (tPY) Thresholds making your change Subject to Regulation (tpy) Answered "Yes" to

CH-04 question 3 Answered "No" to CH-04question 

### 3

100,000 C02e Isthe number you entered for C02einTable 

### 3 greater than or equal to 100.000 tpy? Yes. Go to question 7. No. Your proposed change is not Subjectto Regulationfor GHG under New Source Review. You are done with this form. Returnto Form CH-04 and answer "No" to question4. 

### 7) Are the total mass emissions (sum of the masses of the individual GHGs, excludingglobal warming potentials) greater than or equal to the applicablethreshold, shown in the two columns on the right? Yes. Your proposedchange is Subject to Regulation for GHG under New Source Review. You are done with this form. Return to Form CH-04 and answer "Yes"to question4. No. Your proposed change is not Subject to Regulationfor GHG under New Source Review. You are done with this form. Return to Form CH-04 and answer "No" to question 4. 

### 8) Use Table 4 to documentthe emissions increasefor individual units, tanks, or fugitive sources being modified or debottlenecked,or that are replacing an existing unit, using the calculation method found in 40 CFR 

### 5 52.21(a). See instructions for calculating emissions increases; the method is different depending on the type of unit. Complete a separate Table 4 for each modified, replacement,or debottlenecked emission unit. ifyou base your calculations on projected actual emissions (ratherthanfuture potential emissions), include (in the space provided at the end of Table 4) the tille and date of the business document on whichyou based your projections. Ifyou exclude emissions from your projectedactualemissions. include (in the space providedat the end of Table 

### 1) a description of the excluded emissions, including an explanationof Why these were excluded. Attach an additionalsheet if necessary. Make additional copies if more than three units are affected. Summarize the total increases for each pollutant in Table 5. Attach your calculations. Table 

### 4 100,000 N A N A 

### N

A NA

pppp N A 

### N

A 100 N A N A NA 

### N

A N A N A 250

### ** Description of emissions excluded from projectedactuals:
Table 

### 4

CH4 NzO HFC PFC Modified Replacement Debottlenecked

Table 

### 4 C02e

Pollutant Increase (~PY) Exclusions from Projected Actuals (tpy)



# I I

coz CH4 N20 HFC PFC Baseline period (dates) Baseline Actual Emissions (tpy) Pollutant

*Titleidate of document(s) used as basis for projectedactuals: 

# - ** Description of emissions excluded from projected actuals:

Modified

Actual* or Future Potential Projected Actual' or Future Potential Emissions (tpy)

Replacement Debottlenecked Baseline Actual Exclusions from Increase Baseline period Emissions (tpy) Projected (dates) Actuals (tpy) (tPY)

C02e 

### * Titleldate of document(s) used as basis for projected actuals: 

### ** Description of emissions excluded from projected actuals:

Pollutant

CH4 N20 HFC PFC SF6 EU 313 lncrease

(tPY) able5

# -Summ: EU 314 Increase (tpy)

0 0 0 0 

### 0 0 y of Table 4 Res EU 315 lncrease (tpy) Total Increase Increase Increase

(~PY) (tPY)

# .

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### Pose 3 of 7

### 9) UseTable 

### 6 to document the potential emissionsof each newemission unit constructed or installed. Copy this table if more than five units are added. Atlach your calculations. 

### Table 6

10) Project Totals Table 7

# - Project Summary Column E ColumnA

Pollutant C02 CH4 Significant Thresholds for major sources

(~PY) Column 

### B Emissions increases from modified, replacement, or debottlenecked units (from Table 

### 5) (tPL

0 0



### 11) Isthe total increaseof Cole (Column 

### D of Table 

### 7) greaterthan or equal to 75,000tpy? HFC PFC SF6 C02e

Yes. Your proposed change is Subject to Regulationfor GHG under New Source Review. You are done with this form. Returnto Form CH-04 and answer "Yes" to question4. Column C

Emissions from new units (from Table 6) (~PY)

No. Your proposed change is not Subject to Regulation for GHG under New Source Review. You are done with this form. Returnto Form CH-04 and answer "No" to question4. Column 

### D

Total Increase (tpy) 0 0

0 0 0 0

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### 651-282-5332 or 

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# . 61151 11 

### Pase 4 of 

### 7 0 0 0 0 0 0



## - 0 75,000

## MinnesotaPollution Control Agency 520 Lafayette RoadNorth St. Paul, MN55155-4194 

### Applicability of NSPS Air Quality Permit Program Doc Type: Permit Application 

### Instructions on Page

### 3
Completethis form to determine ifthe proposed change or modification results in new applicability of a New Source Performance Standard listed inTable 1.

la) AQ Facility ID No.: 13700005 I b) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac 3) Isthere a New Source Performance Standards (NSPS) for a source category which includes the unit@) you are installing. modifying, or reconstructing? Yes. Go to question 4 

### [X1 No. Done with this Form. Answer "No" to question 3b) on Form CH-03. 4) Complete Question 4a) -4c) for each new, modified, or reconstructed unit which may be subject to an NSPS following the proposed project. (Copy as necessary.)



### 5) Did you check "no" in column 4c) for any unit inthe table in question 4)? 4a) Unit

No. This indicates that NSPS currently applies to all units and there will be no newly applicable NSPS as a result of the proposed project. Done with this form. Answer "no" to question 3b on Form CH-03. Yes. Complete the remainder of this form for each unit for which you checked "no" inthe last column of the table in question 4. 6) Installinga new unit to which the NSPSwill apply? No. Go to Question 7). 4b) NSPS Subpart(s) that may apply afler project

Yes -Complete Questions 6a) -6e) for each new unit. (Copy as necessary.) 6a) Emission Unit Number: 

### 6b) Emission UnitlEquipment Description: 6c) Stackwent Number: 6d) Date of Equipment Manufacture or Installation: (MonthlDateNear) 6e) Attach a copy of the applicable 40 

### CFR pt. 60 subpart, and subpart A, with the applicable sections highlighted. Use Form CD-01 to document the proposed methods of compliance. 7) Reconstructing an existing unit to which an NSPS will apply? No. Go to Question 8). Yes 

## - Complete Questions 7a) -7e) (next page) for each reconstructedunit. (Copy as necessary.) 4c) Do all of the NSPS listed incolumn 4b) for the unit listed in column 4a) currently apply 

### (p,~ect)?If this is a new unit, the answer is "no."

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# . 10/22/10 Page 1 of 5 Yes 

## - donewith this unit Yes 

## - done with this unit

pp 

## !l Yes -done with this unit Yes 

## -done with this unit Yes 

## - done with this unit No No NO NO No7a) Emission Unit Number: 7b) Emission UnitlEquipment Description: 7c) StackNent Number: 7d) Date of Reconstruction (expected): (MonthlDateNear) 7e) Attach a copy of the applicable 40 CFR pt. 60 subpart, and subpart A, with the applicablesections highlighted. Use Form CD-01 to documentthe proposed methods of compliance. 8) Physical change or modificationto an existing unit to which the NSPS might apply? No. Go to Question 10). Yes - Complete Question 8a) for each modified unit. (Copy as necessary.)

NOx I 8a) Emission Unit ID No.:



## voc El Lead 9) Is there an increaseinthe hourly emission rate of any of the pollutants regulated by the NSPS? No. Go to Question 10). Yes -CompleteQuestions 9a) 

## - 9d) for each modified unit. (Copy as necessary.) Change in Emission Rate Pollulant(s) regulated by

9b) Emission UnitlEquipment Description 9b) StacWent Number 9c) Dateof Modification (expected) (MonthlDateNear) 9d) Attach a copy of the applicable 40 CFR pt. 60 subpart, and subpart A, with the applicable sections highlighted. Use Form CD-01 to documentthe proposed methods of compliance. 10) Check ail that apply Ifyou answered either "yes" or "no" to question 

### 6) and "no"to question 7) and "no" to question 8) or question 

### 9),a major amendment is not needed under Minn. R. 7007.1500, subp. 3a. Answer "no"to Question 3b) on Form CH-03. Another type of permit amendment may still be required. Ifyou answered "yes" or "no" to question 6), and either "yes" to question 7) or "yes" to questions 8) and 9), this change or modification requires a major amendment under Minn. R. 7007.1500, subp. 3a. Answer "yes" to Question 3b) on Form CH-03. ifyou answered "yes" to question 6).7), or 9), butthe total facility potential-to-emit remains below all permit thresholds, review Minn. R. 7007.0250

## -7007.0300 to determine if a permit is needed. the NSPS PM 

## I7 PMl0 

# a PMzs Emission Rate after

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# . Available inalternative format5 oqf2-ch05 10122110 Page 2 of 5 change (Iblhr) (Iblhr)



# --- Emission Rate before change

### ~innesota Pollution AIR QUALITY PERMIT CHANGEFORM 

# CH-06 520LAFAYETTE ROAD 

### APPLICABILITY 

## OFPART 

# 61

# NESHAP ST. PAUL, 

### MN 55

### 155-4 194 (FORMERLYMOD-06APPLICABILITY OPPART 61NESHAP) 0313 1104 

### Control Agency 

### Complete this form to determine if 

### the proposed change ormodification results in new applicability of a Part 61

### NESHAP listed in Table 1. 

### la) AQ Facility ID No.: 13700005 

## 1 b) AQ File No. 2) 

### FacilityName.: United States Steel Corporation-Minnesota Ore Operations, Minntac 3) 

### Is there a Pat61 NESHAP for a source category which includes the unit(s) you are installing, modifying, or reconstructing? Yes. Go to question4 No. Donewith this Form. Answer "No" to questioi~ 3c) on Fosm CH-03.
4) 

### Complete Question4a) -

### 4c) for each new, modified, or reconstructed unit which may be subjectto a Part 61NESHAP followingthe proposed project. (Copy as necessaiy.)

5) 

### Did you check "no" in column 4c) for unit in the table in question4)? No. This indicates that NESHAP c~irrently appliesto all units andthere will be no newly applicable NESHAPs as aresult ofthe proposed project. Done with this form. Answer "no" to question 3c on Form CI-1-03, 4a) Unit

-



### Yes. Completethe remainder ofthis form for each unit for which you checked "no" in the last column ofthe table 

### in quiestion 4. 4b) Part 61 Su~hpart(s) that may apply after project 4c) Do all oftlieNESHAPs listed in column 4b) for the unit listed in column 4a) currently apply (priorto the proposedproject)? Ifthis is a newunit, the answeris "no."

6) Installingnew equipment which will cause a Part 61 NESHAP to apply? 

# I Yes -done with this unit Yes -

### done with this unit 

# n Yes 

## -donewith this unit 

# C]Yes -

### donewith this unit Yes -

### done withthis unit

No 

## - Go to question 

## 7). NO 

## ONO 

# 7 No NO

Yes 

## -Complete 6a) 

## -6c) for each new unit. (Copy as necessa~y.) Use Form CD-01 to document 

# ~ 6a) Emission UnitNumber 6b) Emission Unit/EquipmentDescription 

# I 6c) StackNentNumber
Form CH-06 

### Page 1

### of 5

### 7) Physical or operational change to an existingunit suchthat a Part 61NESHAP will apply? No. Go to question 9).

8) Is there an increase in the emission rate of any ofthepollutants regulated by the 

## Part 61 NESHAP? No. Go to question 9). Yes -

### Complete questions 8a) -

### 8c) for eachmodified unit. (Copy asnecessary.) Use Form CD-01 to doci~ment the proposed methods of complia~~ce. Include a highlighted photocopy ofthe standard. 8a) Emission UnitIEquipmentDescription 8b) StacldVentNumber - 

### Sc) Date ofModification (expected) (MonthIDateNear) 

# 17 Yes - 

### Coinplete 7a) for eachmodified unit. (Copy as necessaiy.) Then go to question 8).

r 

### 7a) Emission Unit ID No.:



### 9) Check all that apply Polli~tant

Ifyou aiswered "yes" or 'how to question 6) and "no" to question 7) or 8), a major amendmentis not needed under Minn.

## R. 7007.1500, subp. 1.D. Answer "no" to Question 3c) on Form CH-03. Another type ofpermit amendmentmay be required. 

# 17 Ifyon answered "yes" or "no" to question 6) and "yes" to question 8),this change or modification requires amajor amendment under Minn.

## R. 7007.1500, subp. 1.D. Answer "yes" to Question 3c) on Fonn CH-03. EmissionRate after change (Iblhr)

Ifyou answered "yes" to question 6) or 8), but the total facility potential-to-emit remains below all permit thresholds, you are requiredto obtain a permit only forthe emission unit(s) subjectto the Part 61

### NESHAP. E~nission Rate before change (Iblhr)

Fonn CH-06 

### Page 2 

### of5 

### ChangeinEmission Rate (Iblhr)

# Minnesota Pollution ControlAgency 520 LafayetteRoad North St. Paul, 

### MN55155-4194 

### Applicability 

### of Part 

### 63 NESHAP for Amendments Air Quality Permit Program Doc Type: PermitApplication

AQ Facility ID No.: 13700005 AQ File No.: Facility Name: United States Steel Corporation-Minnesota Ore Operations. Minntac 1) Are there or will there be HazardousAir Pollutants (HAPs) emissions (listed on Table A) from any source affected by the proposed project? No. Done with this form. Answer "No" to Question 3d on Form CH-03. Yes. Go on to Question 2 of this form.
2) Are you proposing to install new HAP-emitting sources, or reconstruct existing equipment that will emit HAPs followingthe reconstruction? (This specifically means "reconstruction" as defined at 40 CFR 

## 5 63.2 -if you modify existing equipment without meeting the definition of "reconstruction," the answerto this question is "No.") No. Donewith this form. Answer "No" to Question 3d on Form CH-03. Yes. Go on to Question 3 of this form.


### 3) Is the currently-permitted facility a major HAP source (considering potential emissions and all existing federally enforceable permit conditions)? No. Go on to Question 4. Yes. Go to Question 7.
4) Will the new or reconstructed items have the potential to emit 10or more tons per year of any individual HAP, or 25 or moretons per year of total HAPs, before considering any limitsthe source may be subject to or limits you may propose later inthis form? No. Go on to Question 5. Yes. Go to Question 6. 5) Will the facility as modified be a major source of HAP emissions after your proposed change, before considering any limiting conditions you may propose later inthis form? No. Go to Question 10. Yes. Go on to Question 

### 6
6) 

### It is possible to avoid becoming a major HAP source by proposing federally enforceable permit conditionsto limit your potential HAP emissions from the entire facility (as modified) to less than 10tons per year for each HAP and/or 25 tons per year for all HAPs combined. Do you want to accept permit limitations on HAPSto avoid becoming a major HAP source? No. Go on to question 7. 

# rn Yes. Briefly describethe limitations you would bewilling to accept so that your HAP emissions will be less than 10 tons per year for each HAP and less than 25tons peryear for all HAPs combined (use a separate sheet if needed). Description must include each of the HAP pollutants. Include your proposed limit, monitoring. recordkeeping, and reporting on Form CD-01. You must answer "Yes"to Question 6 on Form CH-03. Then go to Question 10of this form.

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### 7) Will any of the new or reconstructed items be subject to any of the standards for major source categories listed in Table B? Also consider whether any existing, non-modified parts of the facility are subject to one or more of the standards listed inTable 8; if so, and the standard is not already included inyour existing permit, includethose sources and standards here as well. 

## q No. Go on to Question 8. Yes. Listthe source categories applicable to each new, reconstructed,or existing HAP-emitlingequipment.



### 8) Will the new or reconstructedsource have the potentialto emit 10 or more tons per year of any individual HAP, or 

### 25 or more tons per year of total HAPS,before consideringany limitsthe source may be subject to? No. Done with this form. Answer "No" to Question 3d on Form CH-03. 

## q Yes. Go on to Question 9 of this form. Answer "Yes" to Question 3d on Form CH-03.


### 9) Will any of the new or reconstructed items not be subject to any of the standards for major source categories listed in Table B? 

## q No. Done with this form. 

## q Yes. Listthem here. Done with this form.

Source

HAP-emitting units with noapplicable source category inTable 

### 6. For each standard listed above, attach a copy of the National Emission Standards for Hazardous Air Pollutant (NESHAP) standard with the applicable parts highlighted. Ifthe applicable standard offers more than one compliance option, make it clear which one you are choosing. Go on to Question 

### 8. Applicable Source Category (Subpart orTitle) (N)ew, (R)econstructed, or (E)xisting? (Check one) ON OR OE ON OR UE UN UR OE 

### ON OR 

## UE

For those HAP-emitting units listed above, you must propose a case-by-case MACT determination meeting the requirementsof 40 CFR 

## 5 63.43. Contact the Minnesota Pollution ControlAgency (MPCA) for information about proposing a case-by-case MACTdeterminationfor approval. Compliance Date

I

10) Some non-major HAP sources will be subject to requirements of NESHAPs called "area source" NESHAPs. Will the proposed new or reconstructed units belong to any of the area source categories listed below? No. Done with this form. Answer "No"to Question 3d on Form CH-03. - Yes Place a check in the box nexlto rnal calegory, and read tne spedfiea NESHAP for So-rce Categoriesto determine all a~olicablo rea~ircmenls for area so.lrces Altacn a CODY of each apulicable subpan ofthe NESIiAP for area source calegor'es, atid highlightthe applicable riqiirements each appliwble s~bparl. Done w'lh this form. Answer No" to Question 3d on Form Cd-03. 

## qAcrylic and Modacrylic Fibers Production, 40 CFR 

## 5 63 Subpart LLLLLL 

## qAluminum, Copper, and Other Nonferrous Foundries, 40 CFR 

## 5 63 Subpart ZZZZZZ Asphalt ProcessingandAsphalt Roofing Manufacturing,40 CFR § 63 SubpartAAAAAAA 

## q Carbon Black Production, 40 CFR § 63 Subpart MMMMMM 

## qChemical ManufacturingArea Sources. 40 CFR 

## 5 63 Subpart 

### VVVVW 

## qChemical Manufacturing:Chromium Compounds, 40 CFR 

## 5 63 Subpart NNNNNN Chemical Preparations Industry. 40 CFR § 63 Subpart BBBBBBB Chromic acid anodizing (Chromium Electroplating). 40 CFR 

## 5 63 Subpart N 

### (7 Clay Ceramics Manufacturing.40 CFR 

## 5 63 Subpart RRRRRR Commercialdry cleaning (Perc) transfer machines, 40 CFR 

## 5 63 Subpart M Commercialsterilizationfacilities, 40 CFR 

## 5 63 Subpart 

### 0 

## q Decorative chromium electroplating (Chromium Electroplating). 40 CFR 

## 5 63 Subpart N 

## q ElectricArc Furnace Steelmaking Facilities. 40 CFR 

## 5 63 Subpart

### YYYYY
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# . 11/19/10 Page 2 of 9Ferroalloys Production Facilities, 40 CFR 

## 5 63 SubpartYYYYW Flexible Polyurethane Foam Production and Fabrication, 40 CFR 

## 5 63 Subpart 000000 Gasoline Dispensing Facilities, 40 CFR 

## 5 63 Subpart CCCCCC 

### [7 Gasoline Distribution Bulk Terminals. Bulk Plants, and Pipeline Facilities. 40 CFR 

## 5 63 Subpart BBBBBB Glass Manufacturing,40 CFR 

## 5 63 Subpart SSSSSS Halogenated solvent cleaners (Degreasing Organic Cleaners), 40 CFR 

## 5 63 Subpart 

### T Hard chromium electroplating (Chromium Electroplating). 40 CFR § 63 Subpart N Hospital Sterilizers using Ethylene Oxides, 40 CFR 

## 5 63 Subpart

### WWWWW Iron and Steel Foundries Area Sources. 40 CFR § 63 Subpart ZZZZZ 

### [7 Lead Acid Battery Manufacturing.40 CFR § 63 Subpart PPPPPP Metal Fabricationand Finishing Sources, 40 CFR 

## 5 63 Subpart 

### XXXXXX 

# 17 Oil and natural gas production. 40 CFR 

## 5 63 Subpart HH 

### [7 Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources.40 CFR § 63 Subpart HHHHHH Paints and Allied Products Manufacturing,40 CFR 

## 5 63 Subpart CCCCCCC 

# 17 Plating and Polishing Operations. 40 CFR 

## 5 63 Subpart 

### WWWW Polyvinyl Chloride and Copolymers Production, 40 CFR 

## 5 63 Subpart DDDDDD 

# 17 Prepared Feeds Manufacturing,40 CFR 

## 5 63 Subpart DDDDDDD Primary Copper Smelting, 40 CFR

## 5 63 Subpart EEEEEE 

### [7 Primary Nonferrous Metals: Zinc, Cadmium, and Beryllium, 40 CFR 63 Subpart GGGGGG Reciprocating Internal Combustion Engines. 40 CFR 

## 5 63 Subpart ZZZZ Secondary aluminum processing. 40 CFR 

## 5 63 Subpart RRR Secondary Copper Smelting, 40 CFR 

## 5 63 Subpart FFFFFF Secondary Nonferrous Metals Processing, 40 CFR

## 5 63 Subpart 

### TTTT Wood Preselving, 40 CFR

## 5 63 Subpart 

### QQQQQQ

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### Table 

### A. Hazardous Air Pollutants Acetaldehyde Acetamide Acetonitrile Acetophenone 2-Acetylaminofluorene Acrolein Acrylamide Acrylic acid Acrylonitrile Allyl chloride 4-Aminobiphenyl Aniline o-Anisidine Asbestos Benzene Benzidine Benzotrichloride Benzyl chloride Biphenyl Bis (2-ethylhexyl) phthalate (DEHP) Bis (chloromethyl) ether Bromoform 1,3-Butadiene Calcium cyanamide Captan Carbaryl Carbon disulfide Carbon tetrachloride Carbonyl sulfide Catechol Chloramben Chlordane Chlorine Chloroacetic acid 2-Chloroacetophenone Chlorobenzene Chlorobenzilate Chloroform Chloromethyl methyl ether Chloroprene Cresols/Cresylic acid (isomers and mixture) 0-Cresol m-Cresol p-Cresol Cumene 2,4-D, salts and esters DDE Diazomethane Dibenzofurans 1,2-Dibromo-3-chloropropane Dibutylphthalate 1,4-Dichlorobenzene(p) 3,3-Dichlorobenzidene Dichloroethyl ether (Bis(2-ch1oroethyi)either) I ,3-Dichloropropene Dichlorvos Diethanoiamine N,N-Diethyl aniline (N.N- Dimethylaniline) Diethyl sulfate 3,3-Dimethoxybenzidine Dimethyl aminoazobenzene 3.3-Dimethyl benzidine Dimethyl carbamoyl chloride Dimethyl formamide 1 

### ,I Dimethyl hydrazine Dimethyl phthalate Dimethyl Sulfate 4.6-Dintro-o-cresol, and salts 2,4-Dinitrophenol 2.4-Dinitrotoluene 1 ,4-Dioxane (1.4-Diethyleneoxide) 1,2-Diphenylhydrazine Epichlorohydin (I-Chloro-2.3-epoxypropane) I ,z-~poxybutane Ethyl acrylate Ethyl benzene Ethyl carbamate (Urethane) Ethyl chloride (Chloroethane) Ethylene dibromide (Dibromoethane) Ethylene dichloride (1,2- Dichloroethane) Ethylene glycol Ethylene imine (Aziridine) Ethylene oxide Ethylene thiourea Ethylidene dichloride (1.1-Dichloroethane) Formaldehyde Heptacholor Hexachlorobenzene Hexachiorobutadiene 

### Hexachlorocyclopentadiene Hexachloroethane Hexamethylene-I .6-diisocyanate Hexamethylphosphoramide Hexane Hydrazine Hydrochloric acid Hydrogen fiouride (hydrofluoric acid) Hydroquinone lsophorone Lindane (all isomers) Maleic anhydride Methanol Methozychlor Methyl bromide (Bromomethane) Methyl chloride (Choromethane) Methyl chloroform (1 ,I .I-Trichloroethane) Methyl hydrazine Methyl iodide (lodomethane) Methyl isobutyl ketone (Hexone) Methyl isocyanate Methyl methacrylate Methyltert butyl ether 4,CMethylene bis (2-chloroaniline) Methylene chloride (Dichloromethane) Methlene diphenyl diisocyanate (MDI) 4,4'-methylenedianiline Naphthalene Nitrobenzene 4-Nitrobiphenyl 4-Nitrophenol 2-Nitro~rooane

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### Table A. Hazardous Air Pollutants
Parathion Pentachloronitrobenzene (Quintobenzene) Pentachlorophenol Phenol p-Phenylenediamine Phosgene Phosphine Phosphorus Phthalic anhydride Polychlorinated biphenyls (aroclors) 1,3-Propane sultone beta-Propiolactone Propionaldehyde Propoxur (Baygon) Propylene dichloride (1.2-Dichloropropane) Propylene oxide 1,2-Propylenimine (2-Methyl aziridine) Quinoline Quinone Styrene Styrene Oxide 2,3,7,8-Tetrachlorodibenzo-p-dioxin 1 

### ,I .2,2-Tetrachloroene Tetrachloroethylene (Perchloroethylene) Titanium tetrachloride Toluene 2,4-Toluene diamine 2,4-Toluene diisocyanate o-Toluidine Toxaphene (chlorinated camphene) 1.2.4-Trichlorobenzene 1 

### ,I ,2-Trichloroethane Trichloroethvlene

121448 ~rieth~lamine ' 1582098 Trifluralin 540841 2,2,4-Trimethylpentane 108054 Vinyl acetate 593602 Vinyl bromide 75014 Vinyl chloride 75354 Vinylidene chloride (1,l-Dichloroethylene) 1330207 Xylenes (isomers and mixtures) 95476 o-Xylenes 108383 m-Xylenes 106423 p-Xylenes Antimony compounds Arsenic compounds (inorganic including arsine) Beryllium compounds Cadmium compounds Chromium compounds Cobalt compounds Coke oven emissions Cyanide compounds Glycol elhers 

# ' Lead compounds Manganese compounds Mercury compounds Mineral fibers Nickel compounds Polycyclic orga2ic matter Radionuclides Selenium compounds Note: For all listinas above which contain the word ."compounds" and-for glycol ethers, lne followng applies: Unless othe~l'se suecifieu. lhcse listinas arc defined as including any unique chem/cal substance that contains the named chemical (1.e.. antimony, arsenic, etc.) as part of that chemical's infrastructure.

1 Glycol ethers include mono- and di- ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCHzCHz),-OR' where n=1,2,or3 

### R = alkyl C7 or less; or R 

### = phenyl or alkyl substituted phenyl; 

### I? 

### = H or alkyl C7 or less; or OR' consisting of carboxylic acid ester, sulfate. phosphate, nitrate, or sulfonate. Glycol ethers do no include ethylene glycol monobutyl ether (EGBE, 2-Butoxyethanol. CAS Number 111-76-2).

2 Includes mineral fiber emissions from facilities manufacturing glass, rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micron or less.

3 Includes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C. A type of atom which spontaneously undergoes radioactive decay.

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### Table 

### B. Source Categories (current as of date of form 

## - see htt~://~.e~a.a~~/Hn/~atw/f~r most current Status)

Processes (MON)) 

# 1 Acrylonitrile-butadiene-styreneproduction (Polymers and Resins IV) Compliance Date for Existing

Sources (if applicable)

6/29/02 6/29/02 Categories of Major Sources Acetyl resins production (Generic MACT) Acrylic fiberslmodacrylic fibers production (Generic MACT) 

### JJJ

Amino resins production(Polymers and Resins Ill) Ammonium sulfate production (MON) Asphaltlcoal tar application - metal pipes Asphalt Roofing and Processing Auto and Light Duty Truck Surface Coating Subpart 

### W YY

Benzyltrimethylammonium chloride production (MON) Boat manufacturing Brick and Structural Clay Products Manufacturing Butadiene-furfural cotrimer (R-I I)production (Pesticide Active Rule Promulgation Date or Scheduled PromulgationDate 6/29/99 6/29/99 9112/96 Aerospace Industry



### 000 FFFF MMMM LLLLL



### 1111

. . lngredient Production) 7/31/97
Alkvd resins oroduction IMisc. Oraanic Chemical Production and 

# I FFFF 

# I 11/1 0103 

# 1 11 /I

0106 9/1/95 GG

FFFF VWV 

### JJJJJ MMM Butyl rubber production (Polymers and Resins I) Captafol production (Pesticide Active Ingredient Production) Captan production (Pesticide Active Ingredient Production) Carbon Black Production (Generic MACT) Carboxymethylcellulose production 9/1/98

1/20/00 11110103 01/02/04 4/29/03 4/26/04

(Cellulose Production Manufacturing) 1/20/03 11/10/06 01

/02/07 5/1/06 4/26/07
11/10/03 8/22/01 5116/03 6/23/99

I I I MMM MMM



### W UUUU Carbonyl sulfide production (MON) (Cellulose Production Manufacturing) Cellulose ethers production (Cellulose Production Manufacturing) Cellulose food casing manufacturing (Cellulose Production Manufacturing) Clay Ceramics Manufaacturing 11/10/06 8/22/04 5116/06 12/23/03
3/5/97 U

Chelating agents production (MON) Chlorinated paraffins production (MON) 4-chloro-2-methyl acid production (Pesticide Active Ingredient 9/5/96
6/23/99 6/23/99 7/12/02 611 1/02

Cellowhane oroduction 

# I UUUU 

# I 611 1102 

# I 611 1/05 FFFF

UUUU
UUUU


### KKKKK

Production) Chloroneb production (PesticideActive Ingredient Production) Chlorothalonil production (Pesticide Active Ingredient Production) Chromic acid anodizing (Chromium Electroplating) Coke Ovens: Charging. Top Side, and Door Leaks

. . - . -- - . . - . -.. . .

. I - 

# 1 MMM Dac&l 7U proo~clion (Pest c~deAc~v~Ingredienl Produclion)

. 6/23/99 1 12/23/03- Desm'vechromi~ni electrofl~~!ig~CJromiumEleclroplal~ng)

. .- N 1/25/95 

## I .!/25!96

. 12/23/03 12/23/03 7112/05 611 1/05

FFFF FFFF MMM

Coke Ovens: Pushing, Quenching and Battery Stacks Combustion (Gas) Turbines Commercial dry cleaning (Perc) transfer machines Commercial sterilization facilities 3anideChemicals Manufacturing (Generic MACT) 11110/03

611 1102
611 1/02
5116/03

MMM MMM

N L

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611 1/05
611 1/05
5116/06 1 1

/I

0103 I 1110103 6/23/99

CCCCC 

### YYYY

M 

### 0 

### W

46-dinitro-o-cresol production (Pesticide Active Ingredient Production) Engine Test CellslStands Epichlorohydrin elastomers production(Polymers and Resins I) resins production (Polymers and Resins II) 11/10/06 11/10/06 12/23/03
6/23/99 6/23/99 1/25/95 10/27/93 12/23/03 12/23/03 1/25/97 Varies 4114/03 3/5/04 9/22/93 12/6/94 7112/02

MMM PPPPP U 

### W 4114/06 3/5/07 9/23/96 12/6/98 7112/05

6/23/99 5/27/03 9/5/96 3/8/95 12/23/03

. 5/27/03 3/5/97 3/3/98

### Table 

### 6.Source Categories 

## I 

# I 

# I Compliance Date

Categories of Major Sources Ethylene-propylene rubber production (Polymers and Resins I) Ethylidene norbomene production (MON) Explosives production (MON) Ethylene Processes (Generic MACT)

I I I Gasoline distribution (Stage 1) R 1211 4/94 1211 5/97 I I Fabric Printing, Coating, & Dyeing Ferroalloys Production Fiberglass Mat Production (wet formed) Flexible Polyurethane Foam Fabrication Operations Flexible Polyurethane Foam Production Friction Products Manufacturing Fume Silica Production (Hydrochloric Acid Production)



### 1 I i Halo enated solvent cleaners De reasin Or anic Cleaners T 12/2/94 

# 9 Subpart 

### U FFFF FFFF 

### W
0000



### XM HHHH MMMMM 

### 111 QQQQQ NNNNN

I I Industrial Dry Cleaning (Dry cleaning)- M 9/22/93 12/20/93 .~~ ~- Rule Promulgation Date or Scheduled PromulgationDate 9/5/96 11/1 0103 11/10/03 7112/02

Hard chromium electroplating (ChromiumHazardous Waste Combustion Hazardous Organic NESHAP Hazardous Organic NESHAP Hazardous Organic NESHAP Hydrazine production (MON) Hydrochloric acid production Hydrogen Fluoride Production (Generic MACT) Hypalon TM production (Polymers and Resins I) for Existing Sources (if applicable) 3/5/97 11/10/06 11110106 7112/05
5/29/03 5120199 411 1102 4114/03 10/7/98 1011 8/02 4117/03 5/29/06 5/20/01 411 1105 4/14/04 10/8/0 1 1011 8105 411 7/06

N EEE F.G



### H I FFFF NNNNN



### W U

Industrial Cooling Towers Integrated Iron and Steel Manufacturing Iron Foundries

i I I Magnetic Tape EE 1211 5/94 12/15/96 LargeAppliance Surface Coating Leather Finishweration Lime Manufacturing 1/25/95 9130199 4/22/94 4/22/94 4/22/94 11110103 4117/03 6/29/99 9/5/96



### Q FFFFF EEEEE 1/25/97 9/30/03 511410 1 5112/99 5/12/98 11/10/06 4117/06 6/29/02 3/5/97

NNNN nTT AAAAA

Maleic anhydride copolymers production (MON) Manufacture of paints, coating and adhesives (MON) Marine Vessel Loading Operations Mercury cell Chlor-Alkali plants Metal Can Surface Coating

(Polymers and Resins IW 

# I I I 9/8/94 5/20/03 4/22/04

-- --

Metal Coil Surface Coating Metal Furniture Surface Coating Methylcellulose production (Cellulose Production Manufacturing) Methyl 

### methacrylate-acrylonitrile-butadiene-styrene production

www.pca.state.rnn.us 651-296-6300 800-657-3864 

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7/23/02 2/27/02 01

/05/04

FFFF FFFF

Y 11111 KKKK 7/23\05 2/27/05 01/05/07

SSSS RRRR UUUU



### JJJ 11/10/03

pp 11

/I

0103 9119/95 12119/03 11113/03 11/10/06 11/10/06 9119/99 12/19/06 11/13/06 6110102 5/23/03 611 1/02 9112/96 6110105 5/23/06 611 1/05 7/31/97

### Table 

### 6.Source Categories

(Polymers and Resins IV)

Miscellaneous Metal Parts and Products Surface Coa Municipal Solid Waste Landfills 

## 1 AAAA 

## 1 1 /I6/03 I 1 Compliance Date for Existing

Sources (if applicablei

7/31/97 Rule Promulgation Date or Scheduled PromulgationDate 9112/96 Categories of Major Sources Methyl methacryiate-butadiene-styrene terpolymers production

aq-jTch07 

# . 11/19/10 Page 8of 9 Subpart

JJJ

Natural gas transmission and storage Neoprene production (Polymers and Resins I) Nitrile butadiene rubber prod. (Polymers and Resins I) Non-nylon polyamides production (Polymers and Resins I) Nutritional Yeast Manufacture 

### HHH U U W CCCC 6117/99 9/5/96 9/5/96 3/8/95 5/21/01 6117/02 3/5/97 3/5/97 3/3/98 5/21/04

### Table B. 

### Source Categories

Categoriesof MajorSources Subpart Printinglpublishing KK Publiclyowned treatment works 

### VW Pulp and paper production (non-combust) MACT I S Pulp and paper production (combust) (Kraff, soda, sulfite) MACT II MM Pulp and paper production (non-chemical) MACT Ill S
I Quaternary ammonium compounds production (MON) FFFF I Rayon production UUUU (Cellulose Production ManufacturingJ Reciprocating Internal Combustion Engines ZZZZ Refractory Products Manufacturing SSSSS

pp Reinforced plastic composites production WWWW Rubber chemicals manufacturing (MON) FFFF


## - 2,4- salts and esters production (Pesticide Active Ingredient MMM Production) Secondary aluminum prod. RRR Secondary lead smelting 

### X Semiconductor manufacturing BBBBB Shipbuilding and ship repair 

## I II Site remediation 

# I GGGGG Sodium Dentachloro~henate production (Pesticide Active Ingredient MMM Production) Spandex production (Generic MACT) 

### W Stationary combustion turbines 

### W CCC Styrene-acmrile production (Polymers and Resins IV) 

### JJJ Styrene-butadiene rubber and latex prod. (Polymers and Resins I) U Symmetrical tetrachloropyridine production (MON) FFFF
Taconite iron ore processing RRRRR Tetmhydrobenzaldehyde manufacture F Tire manufacturing 

### XXXX 

## ord don^^ acid production MMM (Pesticide Active lngredient Production) i Betable oil production -solvent extraction 

# I GGGG i I Wood building products (surface coating) 

# 1 QQQQ
Wool fiberglass manufacturing NNN Date or Scheduled Sources Promulgation Date 

# I (if applicable)

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# . 11/19/10 Pose 9 of 9

# rb Minnesota Pollution 

# @ ~ontrnl ~gency 520 LafayetteRoadNorth St. Paul, MN55155-4194 

### Crossing Permit Thresholds Air Quality Permit Proqam Doc Type: PermitApplication 

### Instructions

### on Page 2
la) AQ Facility ID No.: 13700005 

### I b) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac
Lse In's form to dclnrrninc :Itl~c proposcd changes cause the facility to hecome suojccr for lhe f~rsr rime lo lha req.riremcnt to obtain eilher a Stalc or a 9arl70 perm't. Plnasc attach your aocumenlal'on.

Total Facility PTE before chang~ Below all permit thresholds

Below all permit thresholds Total Facility PTE after change Remains below all permitthresholds and the change does not causethe source or any part to become subject to an NSPS (40 CFR pt. 60) or a Part 61 NESHAP (40 CFR pt. 61. Remains below all permit thresholds but the change causes the source or any part to become subject to an NSPS (40 CFR pt. 60) or a Part 61 NESHAP (40 CFR pt. 61. Action required No permit action required

Apply for and receive a permit only for those sources subject to that regulation. Check applicability of registration permit and general permit.

above a state permit threshold but below all Part 70 thresholds 

# 1 Below all permit thresholds
Below all permit thresholds or



### [7 Above 

### a State permit threshold but below all Part 70 thresholds

Above Part 70 Threshold Exceeds a threshold for a State permit but not for a Part 70 permit.
Exceeds a thresholdfor a Part 70 permit

Remains above a State permitthreshold but below all Part 70thresholds Apply for and receive a permit to construct before beginning actual construction. (See instructions for details.)

Remains above Part 70Threshold You may amend your existing permit. If your operating permit has not been issued, but the application was submitted on time, you may apply for a permit to construct and operate the modification only. Ifyou have not applied for an operating permit, you must apply for and receive either a State or Part 70 permit prior to beginning actual construction.

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### 1 of3

# 10 Minnesota Pollution 

# &! Control

## Agency 

## - 520 LafayetteRoad North St.Paul. MN55155-4194 

# CH-I

# 3 Applicability Of 

## State Rules Air Quality 

### Permit Program

la) AQ Facility ID No.: 13700005 

### I b) AQ File No. 2) Facility Name: United States Steel Corporation-MinnesotaOre Operations, Minntac Some businesses and activities in Minnesota are subject to the following rules. Read each questionto determine if the rule applies to the equipment or processes you are installing or modifying. Ifso, be sure to include the rule in Form CD-01, if you are requiredto fill it out for this application. 

### 3) Minnesota Standards of Periormance for Stationary Sources (Minn. R. ch. 7011) 3a) Will you be installing or modifying equipment that meets the following definition?

, 

## "A furnace, boiler or other combustion equipment in Minnesota which burns fossil fuel for the purposeof producing steam, hot water, hot air, or other hot liquid, gas, or solid, where the smoke doesn't have direct contact with the heated medium for which another standard of performance has not been promulgated." No, my new or modified equipment is notsubject to Minn. R. 7011.0500-7011.0551.Go to question 3b). Yes. Is or will the unit@)be subject to a federal New Source Performance Standard (as identified on Form CH-05)? Yes, my newor modifiedequipment is notsubject to Minn. R. 7011.0500-701 1.0551. Go to question3b). No, my new or modified equipment issubject to Minn. R. 7011.0500-7011.0551. Standards of Performance for Indirect Heating Fossil-Fuel Burning Equipment. (Read the rule to determine the specific requirements that apply.) List the subject unit(s):

3b) Is your new or modified equipment type or process equipment found in Table 3 on page 

### 7? This table contains only state-specific requirements; it does not contain state rules that incorporate federal rules by reference. 

## H No, none of the Minnesota Rules listed inTable 3 apply to my new or modified equipment. Go to question 4). Yes, my new or modified equipment may be subject to the rule associated with it inTable 3. Read the associated rule to see if it applies. 3c) After reading through Table 3 and any rule that may apply to your proposed change, list the ones that do apply in Table 1 (next ~aae). Aaaln. Table 3 contains onlv state-s~ecific reauirements: it does not contain state rules that



# . -. 

## - 'ncorporare feocral r~les by rcference. You do nor need 

### to list lhe itatc rules that incorporate fcdcral r~les by rcference. You do not nccdto list rne Standards of Pcrformanccfor 1nd:rect hcatina Foss I-Fuel Burnna Euuiornenl 

# - again, if 

### it applies (see 3a, above).

Table 

### 1: NewIModified Equipment

### Subject to Minnesota Standards 

### of Performance

Page 

### 1of 

### 6 Emission Source ID Number



## -- Minnesota Rule Part thatApplies What the Rule Part Applies to (Whole facility or Specific Piece of Equipment)4) Minnesota Acid Deposition Control (Minn. R. 7021.0050) 4a) Does your facility generate electricity? No. My facility is not subject to Acid Deposition Control Requirements. Go to question 5. Yes. Go to question4b). 4b) Does your facility contain indirect heating equipment with a rated heat input of more than 5.000 million BTUs per hour? No. Go to question4c). Yes. My facility (and possibly my proposed change) is subject to Acid Deposition Control Requirements. 4c) Ifyour facility is an electric utility, is the total generating capacity of all the electric generating facilities in Minnesota which are owned bv vour facilitv's warent comwanv more than 1.000 meaawatts? NO. ~y fac;~iy'ls not suijeci to Acid ~c~os~tion Control ~c~uirements Yes. My fac'ldy (and possibly my proposed change) 's subject to Acid Dcpos'l'on Control Requirements 5) Standards of Performance for Industrial Process Equipment (Minn. 

### R. 7011.0700

## - 7011.0735) 5a) Are you insta~lilig or modifyingany industrial process eqJtpmcnr on-sitc that may generate any air contalninatlt 'n any amount and is not rca~lated bv a federal New So~rce PcrlormanccStandardor MN RJI~S Standaro of Performance? Yes. Listthe units in ~ible 2, then go to item 5b). No, my new or modified equipment is not subject to the lndustrialProcess Equipment rule. Go to question 6). 5b) Opacity Standard (Note: Opacity is a measure of visible emissions or how much of the view is obscured by stack emissions. The emissions causingopacity are oflen smoke or dust.)


# . For industrial process equipment which was in operation before July 9, 1969,the equipment shall not exhibit greater than 20 percent opacity, exceptfor one six-minute period per hour of not more than 60 percent opacity. An exceedance of this opacity standard occurs whenever any one-hour period contains two or more six-minute periods during which the average opacity exceeds 20 percent or whenever any one-hour period contains one or more six-minute periods during which the average opacity exceeds 60 percent. For industrial process equipment which was not in operafionbeforeJuly 9, 1969, the equipment shall not exhibit greater than 20 percentopacity. 5c) Does any of the industrial process equipment you listed inTable 2 have particulate control equipment with a collection efficiencyof at least 99 percent if it was in operation beforeJuly 9, 1969. or 99.7 percent if 

### itwas not in operation before July 

### 9, 1969? No. Go to question 5d). 

### (7 Yes. These units are consideredto be incompliance with the remaining requirements of this rule. Forthose units meeting this criterionwhich were in operation before July 9, 1969, complete Table 2 by checkino the box labeled "Collection Efficiencv> 99%." For those units meeting this criterion wn'ch were not n operation oefore .Idly 9, 1969, complete Table 2 oy checkina the box abeled 'Col ect'on Efficioncv > 997%. Then, if there are units listed inTable 2 which are not controlled by control equipment with a collection efficiencyof 99% or 99.7% (as applicable). go on to question 5d). 5d) Has it been demonstratedthat the operation of the entire facility in compliance with all ambient air quality standards? This is typically shown through some level of computer dispersion modeling. Yes. Go to question 5e). No. Skip to item 5). 5e) Isthe facility located outside ofthe seven county Minneapolis-St.Paul metropolitan region? Yes. Go to question 59 No. Skipto item 5i). 59 Is the facility located outside of the city of Duluth? Yes. Go to question 59). No. Skip to item 5i). 59) Is the facility located at least 114 mile from any residenceor public roadway? Yes. Go to question 5h). No. Skipto item 5i). 5h) Answer this question individuallyfor each remaining unit listed inTable 2 (those which were not identified in item 5c) as being controlled by control equipment having a control efficiency of 99% or 99.7% (as applicable)). Does the industrial process equipment have particulate control equipment with a collection efficiency of at least 85 percent? Yes, the unit is considered to be in compliance with the remaining requirements of this rule. For each unit for which you can answer "yes"to question 5h), complete Table 2 by checking the box labeled "Outside MSP & Duluth, 

### % milefrom roadslresidences, collection efficiency > 85%." Answer question 5h) for each remaining unit on Table2. No. For each unit for which you answered "No"to question 5h), complete Table 2 as described in item 5i). Then go to question 6). 

## - 5i) Comptcte Table 2 for all remain ng inousrrialprocess eq~ipmenr lsted (thosc which wcre not identified in question 5c) as beina conlrolled bv control eauionlent havina a conlro, effciencv of 99% or 99.7% (asa~~l~caole)). Us0Table 4 to determiethe particiate limit in'eiiher pounds per hour (Iblhr) or grains per dry standard c!ibicfoot igr/dscf). Then go to question 6). aq-f2-ch 13 

### 5/6/06 Page 2 of 6Table

### 2: NewlModified Equipment Subject Equipment Subject to Industrial Process Equipment Rule (list EU number(s)) Inoperation before July 9, 1969 Not in operation before July 9, 1969

In operation before July 9. 1969 

# q Not inoperation before July 9. 1969

Inoperation before July 9. 1969 Not in operation before July 9, 1969

Inoperation before July 9. 1969 

# q Not in operation before July 9, 1969



## - Inoperation before July 9. 1969 Not in operation before July 9. 1969



## - In operation before July 9, 1969 Not inoperation before July 9. 1969



### [7 In operation before July 9, 1969 Not inoperation before July 9, 1969

Inoperation before July 9. 1969 Not inoperation before July 9, 1969

Inoperation before July 9, 1969 Not 

### in operation before July 9. 1969 

### to Industrial Process Equipment 

### Rule Applicable Particulate Limit Collection Efficiency > 99% 

### [7 Collection Efficiency > 99.7% 

# q Outside MSP & Duluth, 

### % mile from roadslresidences, collection efficiency > 85% 

# 0- grldscf 

# 0- Iblhr 

# q Collection Efficiency> 99% Collection Efficiency > 99.7% Outside MSP & Duluth.

### % mile from roadslresidences, collection efficiency > 85% 

# 0- grldscf 

# 0- Iblhr Collection Efficiency> 99% 

## q Collection Efficiency

### > 99.7% Outside MSP & Duluth, %milefrom roadslresidences, collection efficiency > 85% 

# 0- grldscf 

# 0- Iblhr Collection Efficiency 

### > 99% Collection Efficiency > 99.7% Outside MSP & Duluth.%mile from roadslresidences, collection efficiency > 85% 

# i I 

## 0- grldscf 

# i 0- Iblhr 

# i Collection Efficiency > 99% ! Collection Efficiency> 99.7% 

## \ Outside MSP & Duluth, %milefrom roadslresidences, collection efficiency > 85% 

# i ! grldscf 

# 0- 0- Iblhr Collection Efficiency > 99% Collection Efficiency > 99.7% Outside MSP & Duluth,

### % mile from roadslresidences, collection efficiency 

### > 85% 

# a- grldscf 

# 0- Iblhr Collection Efficiency> 99% 

# 0 Collection Efficiency > 99.7% Outside MSP & Duluth. 

### % mile from roadslresidences, collection efficiency 

### > 85% 

# 0- grldscf 

# 0- Iblhr Collection Efficiency> 99% Collection Efficiency > 99.7% ! Outside MSP & Duluth, 

### % mile from roadslresidences, collection efficiency > 85% 

## 0- grldscf 

# 0- iblhr Collection Efficiency > 99% 

### [7 Collection Efficiency > 99.7% 

# q Outside MSP & Duluth.% mile from roadslresidences, collection efficiency > 85% 

# 0- grldscf Iblhr 

## 0-6) Waste Combustors (Minn. R. 7011.1201-7011.1290) Note: Dependingon the type of waste combustor you operate, you may be instructedto fill out one or more of the following forms: 

# - WC-01 -- Required if you determine that your waste combustor requires a permit.



# . WC-02

## -- Required if you installloperate a Class IVwaste combustor at a hospital.



# . WC-03 

## -- Required ifyou do not met the stack height requirements of Minn. 

### R. 7011.1235. If afler reading through the following section, you determine that you are requiredto fill out one or more of the WC forms, contact the Air Quality Permit Document Coordinator. 6a) Are you proposing installing or modifying a waste combustor? "Waste Combustor" means any emissions unit or emissionfacility where mixed municipal solid waste, solid waste, or refuse-derived fuel is combusted, and includes incinerators, energy recovery facilities, or other combustion devices.A metals recovery incinerator is a waste combustor.A combustion device combusting prirnarilywood, or at least 70 percent fossil fuel and wood in combination with up to 30 percent papermill wastewater treatment plant sludge is not a waste combustor.A soil treatment facility, paint burn-off oven, wood heater, or residential fireplace is not a waste combustor. "Wood is defined as: wood, wood residue, bark, or any derivative fuel or residue thereof, inany form, including sawdust, sander dust, wood chips, wood scraps, slabs, millings, shavings, and processed pellets made from wood and other forest residues. A facility that is co-firing Refuse Derived Fuel (RDF) or Municipal Solid Waste (MSW) at rates less than 30 percent by weight is not regulated as a waste combustor, but is regulated as a boiler. Yes. 

### I am installing or modifying a waste combustor. Answer questions 6b through 6eto determine whether you are allowedto continue to operate, and what type of permit the waste combustor requires. Allowed waste combustors must obtain an air emissions permit. No, the facility equipment is not subject to this rule. 6b) Isthe wasle combustor solely 

### a crematory, pathological or an animal carcass incinerator? Yes. It is subject to standards of performance in Minn. R. 7011.1215, subp. 3. The waste combustor is an insignificant activity that does not need to be reported. No, the facility equipment is not subject to this rule. 6c) Isthe design capacity of the waste combustor equal to or greater than 3 million Btuthr? "Design capacity" means: the hourly throughput of the waste combustor unit based on heat input from solid waste to the combustion system as stated by the manufacturer or designer, based on accepted design and engineering practices. For a non-continuous feed system, design capacity means the total heat input from solid waste per cycle. Ifyou don't have a manufacturer's design capacity interms of heat input, you may estimate heat input bythe following formula: 

### Hi. 

### = 

### (HHV) x (R) Where: HI. 

### = Heat input rate HHV

### = heat value ofwaste R =waste input rate, in Iblhr, as defined by the manufacturer CommerciallRetailIlnstitutional Wastes 

### = 7000 Btullb General Industrial Wastes 

### = 9000 BtuAb Medicalllnfectious Wastes 

### = 10,000 Btullb Yes. the waste combustor has 

### a design capacily of 3 tnilllon Btulhr or greater. The waslc comoJstor is s~biecl to the standards of nerformance an~licable to wasle CombJslors. Tnere are also addit'onal application requiremknts for this us,as described in Minn. R. 7007.0501, or 7011.1210. Complete form WC-01. No,the heat input rate is below 

### 3 million Btulhr. Go to question 6d. 6d) Is the waste combustor used as a metal recover incinerator? "Metals recovery incinerator" means 

### a furnace or incinerator used prirnarilyto recover preciousand non-precious metals by burning the combustible fraction from waste. An aluminum sweat furnace is not a metals recovery incinerator. 

# 17 Yes. The waste combustor is subject to the standards of performance applicable to waste combustors. There are also additional permit application requirements for this unit, as described in Minn. 

### R. 7007.0501, or 7011.1210. Complete form WC-01. 

## I7 No. Go to question 6e).

Page 

### 4 of 

### 6!waste combustor located at a hospital? Yes. The waste co~nbustor is suojcct to tho standards of performance applicaoleto Class IV waste comoustors. There are also addtonal ~crmit aDDlcation reauirnmentsfor this d't,as ocscr'oed in Minn. 

### R. 7007.0501, or 7011.1210. Complete form WC-02'if the waste'combustor will complywith all of the design, operating, and standardsof oerformance in Darts 7011.1201 to 7011.1290. Otherwise, an air emissions uermit must be issued. and you-musi complete fork-01. [Please Note: There are federal Standardsof performancethat must also be met for new sources (see Form CH-05), and the state will be adopting more stringent standards for existing incinerators.] No, the waste combustor is not locatedat a hospital. The operation of thiswaste combustor was banned after January 30, 1996.Your compliance plan must contain specific steps to cease operation of this waste combustor.

*This table does not include Minnesota Rules which incorporate federal New Source Performance Standards (NSPS) or National Emission standards for Hazardous Air Pollutant Sources (NESHAPS) by reference.

Table 

### 4: Instructionsfor determining

### your particulate 

### limit Minnesota has a State rulefor the concentration of particulate matter that may be inyour exhaust stream. The unit of the standard is grains per dry standard cubic foot. You needto convert your actual exhaust flow to dry standard cubic feet per minuteto find the emission limit from the rule. Sources subject to this rule are requiredto meetthe emission limits established at all times. These limitswill vary depending on operatingconditions.To determine compliance at any point in time (i.e. for a stack test), follow the steps below: 1. Determinethe amount of dry material (subtract any water or moisture content) in pounds per hourthat is processedby your equipment. 2. Use Table4.1 to determine your allowed emission rate based on process weight rate. Ifyour process weight rate falls between two values onthe table, interpolate or extrapolate using the equation:

for P 

### 5 60,000 Ibslhour; and:

0.16

= 

### 17.31 

# (2)for P > 60,000 Ibslhour
where: E 

### = emission rate in Ibslhour; and P 

### = process weight rate in lbslhour 3. If your process equipment isvented to the atmosphere, determinethe airflowthrough your stack. Correct to 68 

### F and 14.7 psi, and correct to remove any moistureinthe gas stream to obtain the air flow in dry standard cubicfeet per minute (dscfm).

Page 

### 5 of 6

### 4. Use Table 

### 4.2 to determine your allowed concentration in grains per dry standard cubic foot (grldscf). Interpolate using the equation: -0.3241 c = 

### 1.7627 x V where: c 

### = concentration in grldscf, 

### V = gas volume in dscfm 

### 5. Determine which of the two emission rates calculated above is less stringent.To convert a concentration (calculated in step 

### 4) to an emission rate (calculated in step 

### 2). use the following equation:

where: E 

### = emission rate in Ibslhour: c 

### = concentration in grldscf, 

### V = gas volume in dsdm

Table

### 4.1 Process Rate Emission Rate

(Ibslhour) (Ibslhour)



### 1,000 2.25 5,000 6.34 Table 

### 4.2

Regardless of the allowable emission rates calculated from Tables 

### 4.1 and 

### 4.2, no process equipment is allowedto emit more than 

### 0.30 grains per standard cubic foot of exhaust gas. Source Gas Volume (dscfm) 

### 7,000 or less 

### 8,000 9.000 10,000 20,000 30.000 40.000 50,000 60,000 80,000

- p~ -

~ 

### 800,000

Page 

### 6 of 6 Concentration (grldscf) 

### 0.100 0.096 0.092 0.089 0.071 0.062 0.057 0.053 0.050 0.045

0.021 1,000,000 or more 

### 0.020

## Minnesota Pollution ControlAgency 520Lafayette Road North St.Pau1. MN55155-4194 

## Compliance Plan Air Quality Permit Program Doc Typc:Permit Application 

### Instructionson Page 7 

## Facility Information 1) AQ Facility ID No.: 13700005 2) Facility Name: United States Steel Corporation-MinnesotaOre Operations, Minntac Submita separate form for each Emission UniffTanklFugitive Source or Group of Sources as necessary. 

# 1 3a) Emission Unit/Tank/Fugitive Source identification Number(s): Associated Control Equipment Number@): Associated Monitoring System(s) (GEMS or COMS): 

## I Associated StackNent Number(s): 

### OR 

# I
3b) Group Description: Agglomeration Line 6 Emission Units/Tanks/Fugitive Sources Included in Group: 313-316 Control Equipment Included in Group: CE176-I80 Monitoring Systems (CEMS or COMS) lncluded in Group: MR004 StacWents lncluded in Group: SV200 

### CEMS = continuous emission monitoring system; COMS =continuous opacity monitoring system Use Section

### A of this form when you are applying for the first time for a new individual operating permit (federal or state). This includes:



# . permits for construction of new facilities


# . permits for existing facilities that are switchingto an individual permit from a Registration Permit, Capped Permit, or General Permit permits for existing facilities subject to permittingfor the first time
Use Section 

### B of this form when you are applying for an amendmentto an existing individual operating permit (federal or state). Ifyou have units subject to the Clean Air Interstate Rule (CAIR), you will also need to use Form CD-04. Use Form CD-05 to identify operating parameters of control equipment when you are applying for the first time for an individual operating permit, or when applying for an amendmentto an existing individual operating permit. 

## Section A 

# - Compliance Plan for a New Individual Operating Permit 4) National Emission Standards for HazardousAir Pollutants (NESHAP)for Source Categories(40 

### CFR Part 63) 4a) On Form GI-09A, did you identify a Part 63 NESHAP that isor will be applicableto the item or group identified in Question 3a or 3b (of this form)? No. Go on to Question 4b. Yes. Attach a copy of each applicable Part 63 NESHAP. Highlight all applicable requirements of the entire subpart. Attached Not attached 4b) On Form GI-09A, did you propose limits on the item or group identified in Question 3a or 3b (of this form) so that the entire facility is not a major source of HAPS? No. Go on to Question 4c. Yes. Below, listthe limit(s) you proposed, providing the proposed compliance demonstration.

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 

# . TW 651-282-5332 or 800-657-3864 

# . Available in alternativeformats 

### oq-fl-cdOl 

# . 2/22/11 Page I 

### of 84c) On Form Gi-09A, did you identify that a case-by-case determinationof MaximumAchievable ControlTechnology (MACT) is required for the item or group identified in Question 3a or 3b (of this form)? Proposed Limit

No. Go on to Question 5. Yes. Attachyour case-by-case proposal, including proposedcompliance demonstration Attached Not attached Proposed Compliance Demonstration

5) National EmissionStandards

### for Hazardous Air Pollutants (NESHAP) (40 CFR Part

### 61) 

# I

5a) On Form GI-09B, did you identify a Part 

### 61 NESHAP that is or will be applicable to the item or group identifiedin Question 3a or 3b (of this form)? No. Go on to question6. Yes. Attach a highlighted copy of each applicable Part 61 NESHAP. Highlight ail applicable requirements of the entire subpart. Attached Not attached 

### 6) New Source Performance Standards (NSPS) (40 CFR Part60) 6a) On Form GI-09D, did you identify a New Source Performance Standard that is or will be applicable to the item or group identified in Question 3a or 3b (of this form)? 

# I7 No. Go on to question 7. Yes. Attach a copy of each applicable NSPS. Highlight all applicable requirementsof the entire subpart. Attached Not attached 7) Acid Rain Requirements (40 CFR Part72) 7a) On Form GI-09E, did you identifythat the acid rain requirements are applicableto the item or group identifiedin Question 3a or 3b (of this form)? No. Go on to question8. Yes. Referto 

### http://www.e~a.40v/airmarkets/business/foms.htmi#ar~ for the applicable Acid Rain Program forms and instructions. Applicable Forms attached and sent to U.S. Environmental ProtectionAgency (EPA) as appropriate Not attached 

### 8) NewSource Review (40 CFR Part52.21) 

### 8a) On Form GI-09C, did you propose limits onthe item or group identifiedin Question 3a or 3b (of this form) so that the entire facility is not a major source under New Source Review? No. Go on to Question 8b. Yes. Below, list the limit(s) you proposed, providing the proposed compliance demonstration. Proposed Limit 

# 1 ProposedCompliance Demonstration I



## I 8b) Will the stationary source be permitted as a major source under New Source Review? No. Go on to Question 9. Yes, Go on to Question8c.

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 

# . TTY651-282-5332or 800-657-3864 

# . Available in alternative formats oq-ff-cd0l 2/22/11 Pope 2 of 88c) Isthe item or group identified in Question 3a or 3b (of this form) subject to Best Available ControlTechnology (BACT) requirements? No. Go on to Question9. Yes. Below, list the BACT requirements proposed for the item or group identified in Question 3a or 3b of this form, providing the proposed compliance demonstration. Proposed BACT Limit 

# I Proposed Compliance Demonstration



### 9) Minnesota Standards 

### of Performance (Minn. 

### R. ch. 7011) 9a) 

### On Form G -091, did you identify the :tern or group listed in Qucsl'on 3a or 3b (of this form) as boing s~bject lo M'nn R. 7011.0515 litem 2a of Form G -09 \. anv orher indusrrv soccilic M~nnesota standard of oerformance (Table 

### 1-1 of Form GI-091). orio M~nn. R 7011.0715 (iiim

# 4of Form GI-06l)j No. Go on to Question 10. Yes. Listthe ruie(s) andspecific iimit(s) below, along with the proposed compliance demonstration

10) National

### or Minnesota Ambient Air Quality Standards (NAAQS or MAAQS) 10a) Is the item or group identified in Question3a or 3b subject to an existing or proposedlimit required in order to meet NationalAmbient Air Quality Standard (NAAQS) or Minnesota Ambient Air Quality Standard (MAAQS)? (This would be identified through modeling.) No. Go onto Question 

### 11. Yes. Listthe limit(s) below, along with the proposed compliancedemonstration. Applicable Rule 

# I Rule Limit Proposed Compliance Demonstration

11) Environmental Assessment Worksheets (EAW) and Air Emissions Risk Analysis (AERA) Proposed Limit

Ila) Did you assume limits on the item or group listed in Question3a or 3b in order to avoid the need to do an EAW or AERA? No. Yes: To avoid an AERA and/or To avoidan EAW Listthe limit@)below, along with the proposed compliancedemonstration. Proposed Compliance Demonstration

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 TrY651-282-5332 or 800-657-3864 

# . Available in alternative formats aq-fl-cd0l 

# .2/22/11 Page 3 of 8 Proposed Limit Proposed Compliance Demonstration

### I lb) Does the item or group identified in Question 3a or 3b require limits based on the results of an EAW or AERA that was performed? No. Yes. AERA and/or EAW Listthe limit(s) below, along with the proposed compliance demonstration.



### 12) Is there pollution control equipment associatedwith the item or group identified? No. Yes. Complete Form CD-05 for each associated control device. Proposed Limit



## Section 

# B 

# - Compliance Plan for an Amendment toan Existing IndividualOperating Permit Proposed Compliance Demonstration



### 13) To the extentthat your proposed permit amendment consists of edits to existing permit language, you should attach to this form a copy of the relevant page(s)of the existing permit with proposed changes clearly marked. Check one or both of the following statements,as applicable: All or part of the proposed permit changes for the item or group identified in Question 3a or 3b is shown by edits to the existing permit language, a copy of which is attached to this form. Some of the proposed permit changes for the item or group identified in Question 3a or 3b cannot be shown by simply marking up existing permit language, so I am answering the questions below. For any proposedchanges that cannot be easily and clearly shown by submitting marked-up pages from your existing permit, answer the questions that follow. 

### 14) National Emission standards for Hazardous Air Pollutant Sources (NESHAPS)for Source Categories (40 

### CFR Part 63) 14a) On CH-07, did you identify a newly applicable Part 63 NESHAP for the item or group identified in Question 3a or 3b (of this form)? No. Go on to Question 14b. Yes. Attach a copy of each newly applicable Part 63 NESHAP. Highlightall applicable requirements of the entire subpart. Attached Not attached 14b) On Form CH-07, did you propose limits on the item or group identified in Question 3a or 3b (of this form) so that the entire facility is not a major source of HAPS? No. Go on to Question 14c. Yes. Below, list the limit(s) you proposed, pmvidingthe proposed compliance demonstration.

14c) On Form CH-07, did you identify that a case-by-case determinationof Maximum Achievable ControlTechnology (MACT) is requiredfor the item or group identified in Question 3a or 3b (of this form)? Proposed Limit

No. Go on to Question 

### 15. Yes. Attachyour case-by-case proposal, including proposed compliance demonstration. Attached Not attached Proposed Compliance Demonstration

www.pca.state.rnn.us 

# . 651-296-6300 

# . 800-657-3864 

# . TTY 651-282-5332or 800-657-3864 Available in alternativeformats aq-fl-cdOl 

# . 2/22/11 Pare4 of815) National Emission standardsfor Hazardous 

### Air Pollutant Sources (NESHAPS) (40 CFR Part61) 15a) On Form CH-06, did you identify a newly applicable Part 61 NESHAP for the item or group identified in Question 3a or 3b (ofthis form)? No. Go on to question 16. 

# 17 Yes. Attach a highlighted copy of each newly applicable Part 61 NESHAP. Highlight all applicable requirements of the entire subpart. Attached Not attached 16) NewSource Performance Standards (NSPS) (40 CFR Part 60) 16a) On Form CH-05, did you identify a newly applicable New Source Performance Standard for the item or group identified in Question 3a or 3b (of this form)? 

# rn No. Go on to question 17. Yes. Attach a copy of each newly applicable NSPS. Highlight all applicable requirements of the entire subpart Attached 

# 17 Not attached 17) Acid Rain Requirements (40 CFR Part 72) 17a) Does the unit or group identified in Question 3a or 3b include new electricity generating equipment capable of generating 25 

### MW or more of electricity? 

## !Z No. Go on to question 18. Yes. The equipment may be subject to acid rain requirements. Referto 

### htt~:llwww.e~a.qovlairmarketslbusinessl forms.html#ara for the applicable Acid Rain Program forms and instructions. 

# 17Applicable Forms attached and sent to EPA as appropriate Not attached 18) New Source Review (40 CFR Part52.21) 18a) On Form CH-04, CH-04a, or CH-04b, did you indicate the intentionto propose limits on the item or group identified in 0-esf'on 3a or 3b (of rh:s form) so that In6 proposed modilical!on is no! subjecl lo hew Source ~ev/ew, or so that ent're fac:.itv is not a tnaior sourcc under New Source Rcv'ew? 

### 1.f VOJ arc ~rogosina .im'ls, bul 011 an 

### :rcm or group other lhan



### . . identked in ~uesfion 3a or 3b of this form, then answer 

## Nb.j 

## -
No. Go on to Question 18b. Yes. Below, list the limit(s) you are proposing, including the proposed compliance demonstration. Then go onto Question 19.

18b) Isthe unit or group identified in Question 3a or 3b (of this form) subject to New Source Review? Proposed Limit



## €4 No. Go on to Question 19. Yes. Go on to Question 18c. lac) Isthe item or group identified in Question 3a or 3b (of this form) subject to Best Available Technology (BACT) requirements? No. Go on to Question 19. Yes. Below, listthe BACT requirements proposed for the item or group identified in Question3a or 3b of this form, providing the proposed compliance demonstration. Proposed Compliance Demonstration

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 TTY 651-282-5332or 800-657-3864 

# . Available in alternative formats oq-fi-cd0l 

# . 2/22/11 Page 5 of 8 Proposed BACT Limit Same as existing permit language Proposed Compliance Demonstration19) Minnesota Standards of Performance (Minn. R. ch. 7011)

20) NationalAmbient Air Quality Standard (NAAQS) 

### or MinnesotaAmbient Air Quality Standard (MAAQS) 19a) On Form CH-13, did you identify the item or group listed in Question 3a or3b (of this form) as being subject to Minn. R. 7011.0515 (item 3a of Form CH-13), any other industry specific Minnesota standard of performance (Table 1 of Form CH-13), or to Minn. R 7011.0715 (item 5 of Form CH-13)? 

# rn No. Go on to Question20. 

### [7 Yes. List the rule@) and specific iimit(s) below, along with the proposedcompliance demonstration. Applicable Rule 

# I Rule Limit Proposed Compliance Demonstration

20a) Will the item or group identified in Question 3a or 3b be subject to a limit required in order to meet NAAQS or MAAQS? (This would be identified through modeling.) 

# rn No. Go on to Question 21. Yes. List the limit(s) below, along with the proposed compliance demonstration.

21b) Doesthe item or group identified in Question 3a or 3b require limits based on the resultsof an EAW or AERA that was performed? 

## El No. Yes. AERA andlor EAW Listthe limit@)below, along with the proposed compliance demonstration. 

# I I

Proposed Limit



### 21) Environmental Assessment Worksheet (EAW) 

### and Air Emission RiskAnalysis (AERA) 21a) Didyou assume limits on the item or group listed in Question 3a or 3b in order to avoid the need to do an EAWor AERA? 

# rn No. Yes. To avoid an AERA and/or 

### [7 To avoid an EAW List the limit(s) below, along with the proposedcompliance demonstration. Proposed Compliance Demonstration

Proposed Limit

22) Isthere pollution control equipment associated 

### with the item 

### or group identified? No 

# rn Yes 

## - Complete Form CD-05for each associated control device. 

## I

Proposed Compliance Demonstration

Proposed Limit

www.pca.state.rnn.us 651-296-6300 

# . 800-657-3864 

# . TY 651-282-5332 or 800-657-3864 

# - Available in alternativeformats aq-fl-cd01 

# .2/22/11 Paye 6 of 8 I

Proposed Compliance Demonstration 

## I

## Minnesota Pollution 

# & control 

## Agency 520 Lafayette Road North St. 

### Paul, MN5355-4194 

### Facility Emissions Summary Air Quality Permit Program Doc Type: 

### PennitApplication 

### Instructionson Page 2 la) AQ Facility ID No.: 13700005 I b) AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations. Minntac 3a) Emission Source Type Source

# 1

Hr 

# I 

# 1

;i ID No. Lbs pei Unrestricted Limited Tons per

313 0 0 0 CAS#: CAS#:

Potential Actual Lbs per Potential

5) Compact d sc contalntng edllable calculat~on spreadsheet(s) 'ncl~ded 'n the appl~cation package 

### [XI Ed~lable ca culat on spreadsheer(s) w~ll be erna~led to the MPCA Lpon reqJest Pollutant Name:

Actual

Hr tpy tpy yr 0 0 0 Unrestricted Lbs per

www.pca.state.mn.us 

# . 651-296-6300 800-657-3864 

# . Ti 651-282-5332 or 800-657-3864 

# . Available in alternativeformats aq-f1-gi07

# . 11241

### 11 Page 

### 1 of3 F Pollutant Name: VOC

Limited Hr tpy tp y yr 0 0 0 Unrestricted Tons per Limited Tons per

# rcb Minnesota Pollution 

# @ controlAgency

- 520

### Lafayette Road North 

### St. Paul, MN55155-4194 

### Facility Emissions Summary Air Quality Permit Program Doc Type: 

### PermitApplication


### Instructions 

### on Page 2 la) 

### AQ Facility ID No.: 13700005 

### I b) 

### AQ File No.: 2) Facility Name: United States Steel Corporation-Minnesota Ore Operations, Minntac

Emission Source Potential 

# 1 Actual 

### Lbs per Unrestricted Limited Tons per Hr 

### tpy tpv yr I I I

5) 

### Compacr disc containing edlable calcu ation spreadsheet(?.) :ncluded intne app.'cat~on package 

## N Ed:lable calcJal'on spreadsheet(sj wll be emailed to tne MPCA upon request

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 

# . TTY 

### 651-282-5332or 800-657-3864 

# . Available in alternativeformats aq-fl-gi07. 1/24/11 Page 1 of 3

## Minnesota Pollution 

# & ControlAgency 520 LafayetteRoad North St. Paul, MN 55155-4194 

### Requirements: CAM 

### (40 CFR pt. 

### 64) Air Quality Permit Program Doc Type: PermitApplication 

## Compliance Assurance Monitoring (40 CFR 

## pt. 64) AQ Facility ID No.: 13700005 Facility Name: United States Steel Corporation-Minnesota Ore Operations. Minntac
The CAM rule applies to certain emission units at facilities requiredto obtain a Part 70 permit. In general. CAM applies to emission units meeting the following criteria: 1. The emission unit is subject to an emission limit or standard (including limits and standards in Minnesota Rules contained inthe State Implementation Plan) for an air pollutant regulated by Part 70; 

### 2. Com~liance with the applicable limit or standard is achieved through the use ofadd-on contml equipment; and

. . 

### 3 Tne eln'ss on ~nt has pre-controleo potcnlia emssions oftnc applicable reg~lateo air polluranr lhat are eq.lal to or grcatcr than 100 percent of the Part 70 major source lcvcl for thal poll~lant (in Ions per year). For exemptions, see Table C at the end ofthis form. Use of continuous emissions monitoring system (CEMS), continuous opacity monitoring system (COMS), or predictive emission monitoring system (PEMS) does not qualify as an exemption to the CAM rule. However. 40 CFR §64.3(d) states that use of a CEMS, COMS, or PEMS meets the requirements of Compliance Assurance Monitoring (CAM) CAM applicability is determined on a pollutant-by-pollutant basis for each "pollutant specific emissions unit," (PSEU) defined at 40 CFR § 64.1 as "an emissions unit considered separately with respect to each regulated air pollutant." For purposes of CAM submittal requirements, a "large PSEUis an emissions unit with potential confmlled emissions equal to or greater than 100 percent of the major source threshold amount for a given regulated pollutant. ("Major source threshold amount" as it applies to Minnesota, means 100 tons per year of particulate matter (PM), particulate matter smaller than 10 microns in aerodynamic diameter (PMro), particulate matter smaller than 2.5 microns in aerodynamic diameter (PM2.5), sulfur dioxide (S02), nitrogen oxides (NOx), volatile organic compounds (VOC), carbon monoxide (CO), or lead; 10 tons per year of any hazardous air pollutant (HAP); or 25 tons per year of any combination of HAPS. The levels may be different in current or future nonattainmentareas. Refer to 40 CFR § 70.2 underthe definition of "major source" for further detail. "Other PSEUs" are those units whose uncontrolled potential emissions may be equal to or greater than 100 percent of the major source threshold amount, but controlled emissions are less than that threshold. Ifyou are applying for thefirsttime for a Part70 permit, afler determining the uncontrolled and controlled potential emissions of the emissions units, questions 1-3 must be considered for each large PSEU, as defined above. Ifyou are applying for a major amendment to an existing Part 

### 70 permit, after determining the uncontrolled and controlled potential emissions ofthe emissions units, questions '1-3 must be considered for any PSEU, as defined above, to which the amendment is applicable. Ifyou are applyingfor reissuance of an existing Part

### 70 permit: CAM appl cabil'ly has alreaoy been determ'ned and ncorporared 

### :n the permir wncrc necessary, ano this perm! appl'caton reqi.ests no changes affcclingCAM app icability. Done wirh this form Suomit lnis form with your application CAM appl'cability has already been detcrm ned and :nc.orporatcd in the permit wnere necessary, but Iwo.. d like to reoucst some cnanaes to the exislinn CAM. Done with this form S..o~n't this form ar~d a new CAM Plan reflecting your requegted changes with the application. Also show changes on CD-01-R and the Compliance Plan CD-01 received from the MPCA. CAM applicability has not been determined for all sources at the facility. After determiningthe uncontrolled and controlled potential emissions of the emissions units, questions 1-3 must beconsidered for each PSEU (large and other) for which CAM applicability has not already been determined through a Part 70 permitting action. 1) Is the unit subject to an emission limitation or standard, specified in either a rule or permit? For existing emission units, check your current permit to see if there are any emission limits specified for the emission unit. 

### [XI Yes, the emission unit is subject to an emission limitation or standard. Go onto question 2. 

### No, the emission unit is not subject to CAM. Record the EU number and reason CAM doesn't apply inTable B. Repeat question 

### 1for next emission unit.

www.pca.state.mn.us 

# . 651-296-6300 

# . 800-657-3864 

# . TTY 651-282-5332or 800-657-3864 

# . Available in alternativeformat5 aq-fl-gi09h

# . 4/6/11 

### Page 1of 321 Is an add-on control device usedto achieve comoliance with that limitation or standard? (For examule, a boiler mav have a 

## 1 ' NOx limit and an SO2 limit. If the boiler uses lime'injection for SO2 control but relies on a ~OW-NO~ burner to meettl;e NOx limit, then the emission unit would be subject to CAM for SO2but notfor 

### NOx.) Yes. Go onto question 

### 3. No, the emission unit is not subject to CAM. Recordthe EU number and reason CAM doesn't apply inTable 

### B. Returnto question 

### 1and repeatfor next emission unit. 

### 3) There are some exemptions allowed by the rule. Review the list of exemptions inTable C, then answer the following question. Yes, the emission unit is exempt from CAM. List the emission unit in Table 

### B and repeat questions I through 3for the next emissions unit.When each emission unit has been considered, go on to complete the rest of Table A and Table 

### B. No, the emission unit is subject to CAM. List the emission unit inTable A and repeat questions 1through 3for the next emissions unit. When each emission unit has been considered, go on to completethe rest of Table A and Table 

### B. 

### Table A. 

### Emission units subject to CAM

You must prepare a CAM submittalfor each unit listed inTable A, and provide it with the permit or amendment application. The CAM submittal, also referredto as the monitoring approach submittal, should include: information on indicators (gauges, meters, or other devices used to monitor operating parametersof control equipment) indicator ranges, or the process by which indicators are to be established performance criteria justification for the proposed monitoring control device operating data recorded during a performancetest, supplemented by engineering assessments or manufacturer's recommendationsto justify the proposed indicator range a test plan and schedule for obtaining data if performance test data are not available an implementationplan, if monitoring requires installation, testing or other activities prior to implementation Some of this information will be incorporatedinto the operating permit. The permit will specify the approved monitoringapproach and the indicator range@),including the averaging periods. 

### Table 

### 6.Emission units not subject to CAM EU # 

### l~hy ? (not large enough, uncontrolled, exemptioncategoryfrom Table C, etc.) 

# I

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# . 651-296-6300 

# . 800-657-3864 TTY 651-282-5332or 800-657-3864 Available in alternativeformats aq-fl-giO9h 

# . 4/6/11 Pose 2 of 3

### Table C. 

### CAM rule exemptions and 

### exceptions The CAM rule does not apply to units subject to emission limitations or standards proposed by 

### EPA afler November 15, 1990, pursuantto section 111 or 112of the Clean Air Act. In situations where some portions of a facility operate control devices inorder to comply with emission standards issued priorto November 15, 1990, only those portions of the facility must comply with the requirements ofthe CAM rule.

=, The CAM rule does not apply to Stratospheric ozone protection requirements.
=1 The CAM rule does not applyto Acid Rain Program requirements.
=1 The CAM rule does not apply to emission limitations or standards that apply solely under an emissions trading program.
=1 The CAM rule does not apply to municipally-owned utility peak-shaving units where



# . the unit is exempt from all Acid Rain Program monitoring requirements, and



# . the unit operates for the sole purpose of providing electricity during periods of peak electrical demand or emergency situations, and the unit will be operated consistent with that purpose throughout the permit term, and emissions from the unit are less than 50 percent of the amount required for the source to be classified as a major source, based on an average of the last 3years, and are expected to remain so. Insituations where continuous compliance monitoring isalready specified in an operating permit or applicable requirement, the CAM rule exempts the Permittee from additional monitoring requirementsand directs the Permitteeto usethe continuous compliance monitoring data to fulfill the CAM rule monitoring and certification requirements. Additional information, including

### a Technical Guidance Document that includes example submittals, is available on the Internet at 

### htt~://~w~.eua.aov/ttn/emc/cam.html.

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# . 4/6/11 Page 3 of 3

### Compliance AssuranceMonitoring Plan Dry Electrostatic Precipitator forPM~M~OIPM~.~ Emissions Control from the Grate Kiln

1. 

### Background
A. Source Information Facility: United States Steel Corporation, Minnesota Ore Operations -

### Minntac 8819 Old Highway 169 Mt. Iron, 

## MN 55768 Emission Unit(s) Description: EU3 13-3 16lSV200lCE179-180 hdnrating Line 6
Emission Unit(s) ID: EU313,EU314, EU315, EU316 StackID: SV200 APCD ID: CE 179,180 

## B. Applicable Regnlation. EmissionsLimit. and MonitoringRequirements Regulation: Minn. R. 7011.0730; Minn R. 701 1.0735; 40 CFR pt. 63, subp.

### RRRRR
Emissions Limit: EU3 13-316: 0.03 grldscf;47 lblhr PM EU3 13-316: 0.01 grldscf; Front-half ParticulateMatter
Moi~itoring Requirements: Secondary voltage and secondary current to each ESP will be used as an indicator, monitor for bypass ofDry Electrostatic Precipitator. Normal process operationswill not produce conditionsthat adversely affect the ESP, therefore no additional process operational parameters will be monitored.

C. ControlTechnology: Diy ElectrostaticPrecipitator
11.

### Monitoring Approach

### 111.MonitoringApproach Justification bypass is defined as any instance the stack cap is lifted and air flow om the process is released throng11the emergency stack, bypassingthe ontrol equipment.Bypasses trigger corrective action as necessary and

B.

### Verificationof Operational Statos



### Line 6 Waste Gas 

### (EU313-316) D. 

### Monitoring Frequency

Data Collection Procedures

(a) Background The source will be equipped with two dry electrostatic precipitators

### in parallel to contsol particulate matter emissions. Each ESP will have

## xxx fields. Particulatematter control is estimated to be at least 99%. 

### The indicator valnes will be measured continuously.
Data will be collectedby electronic dataacquisition equipment.Data will be collected at a minimum rate of one reading evely 15minutes, and stored as 1-houraverages according to procedures identified in Minn.R.7017.1002 

## - ,1220. Procedures specifiedin Minn R.7017.1160 will be followed for data collection during periods ofmonitor maintenance, monitor quality assurancechecks and operational periods of less than one hour.

(b) Ratioilale for SelectionofPerfolmanceIndicators 

### In an 

## ESP, electricfields are establishedby applying a direct-current voltage across apair of electrodes:a discharge electrode and a collectio~~ electrode. Pasticulate matter suspendedinthe gas steam is electrically charged by passingthrough the electric field around each discharge electrode(thenegatively charged electrode). The negatively charged particles then migrate

### toward the positively charged collection electrodes. Theparticulatematter is separated fromthe gas streamby retention on the collection electrode. Particulate is removed from the collection plates by rapping the plates. The seconda~y voltage drops when a malfunction, such as grounded electrodes, occurs in theESP. Whenthe secondary voltage drops, less pa~.ticulate is charged and collected.Also, the secondary voltage canremain high but failtoperform its fi~nction if the collection plates are not cleaned, or rapped, appropriately.Ifthe collection plates are not cleaned, the current drops. Sincepower is the product of the voltage and current, monitoringthe power input will provide areasonable assurancethat the ESP isfunctioningproperly. (c) Rationale for Selection ofIndicator Ranges The selected excursionlevelis an hourly averagevoltage and current less than xxx Volts and xxx Amps. When an exc~irsion occurs, corrective action will be initiated, beginning with an evaluation ofthe occurrence to determine the action required to correctthe situation.All excursionswill be documented and reported. Theindicator range for the voltage and currentwill be selectedbased upon the manufacturer's recommendation following the frstcomnpliance/performance test


# . The nor~nal operating voltage 

## - - is set atthe highest level acl~ievable witliouthaving an excessive spark rate. (d) Control device operatingparameter data collectedused tojustify the proposed indicatorrange. Not Applicable.A continuous dataacquisition systemwill be used to demonstrate compliance. (e)Testplan and schedulefor obtainingdataifperformancetest data arenot available. The initialperformance test will be conducted accordingto the Schedule of Compliance.Test procedures willbe specified in the pre-test plan as required by Minn R. 7017.2030. 

### (f) Implementation plan. Thevoltmeter, ammeter, and data acquisition system will be installed and calibrated per manufacturer's specifications. An initial performancetest will be conducted.

## Minnesota 

## Pollution AIRQ~AL~Y PERMITAPPLICA~IONFORM 

# GI-02 520

### LAFAYETTE ROAD 

# - Control 

## Agency ST. 

### PAUL, MN 55155-4194 

## PROCESSFLOW

## DIAGRAM 

# - 5/13/98 

### 1) 

### AQ Facility IDNo.: 13700005 2) 

### Facility 

### Name: United States Steel Corporation-Minnesota Ore Operations, Minntac 3) 

### Flow Diagram:

# 0 Am QUALITY PERMlTAPPLICATION FORM

# GI-03 

# - 520LAFAYETTE ROAD IY 

## FACILITYAND STACKNENTDIAGRAM ~i~~~~~t~ ST. 

### PAUL, MN 

### 55155-4194 2/16/05 

### Pollution Control Agency 1) AQ 

### FacilityID

### No.: 13700005 2) 

### FacilityName: United States Steel Corporation

# - Minnesota Ore Operations, Minntac 3) 

### Facility and StacldVent Diagram:



### Form GI-03 

### Page 1

### of2 

# I

# Minnesota Pollution &aumY mmm APPLIcATIoN

### *om

# GI-04
520LAFAYETTEROAD 

## STACKNENT 

# INFORMATION ST. 

## PAUL, MN55155-4194 71zs105 

## C~CCC 

# Control Agency 

# -

1) AQ Facility 

## ID No.: 

## 13700005 2) 

## FacilityName: United States Steel Corporation-Minnesota Ore Operations, Minntac



## 3h) 

## Discharge ~i~~~~i~~

U

aq-fl-gi04.doc FormGI-04 

### Page 1 

### of5 

## 30 

## Exit 

## Gas Temperature ("

### F)



## 170 

## 3e) 

## Design Rate at Exit (acfm)



## 703,000 

## 3g) 

## Rate/Temp
Source



## E 34 

## Inside Diameter in ft. (left 

### columnonly) 

## or Length

## x Width in ft. (bothcolumns)


## 13 

## 3c) 

## Height of Opening

From Ground 

## (ft.1 140 

## 34


# sv ID

No.

200 

## 3b) 

## Operator's Description



## Line 

## 6 Waste 

## Gas Stack

## Minnesota Pollution ControlAgency 520 LafayetteRoadNorth StPaul, MN 55155-4194 

# GI-05A Pollution Control Equipment Information Air Quality Permit Program Doc Type: Permit Applicafion

Instructions on Page 2 la) AQ Facility ID No.: 13700005 Ib) AQ File No.: 2) Facility name: United States Steel Corporation-Minnesota Ore Operations, Minntac 

# I 3d) 

# 1 3e) 3i) 

# / Afterburner, Control equip ID no.

TBD SOX, HF 100 95

176 CE type code

179 

# / 010 

# 1 Electrostatic Precipitator,high

# I TED 

### I I 

### I 

### I 

### 1 

## I 

## I 

## I 071

178 

# 1 TBD Description

PMIPMIO 

# 1 I00 Fluid Bed Dry Scrubber

I I I I I I 048 Manufacturer

w.pca.state.rnn.us 651-296-6300 

# - 800-657-3864 Tr( 651-282-5332 or 800-657-3864

. 

# . Available in alternative formats 

### oq-f 1-gi05a 

# . 5/23/11 Pose I of 6 TED

Carbon Absorption

180

- Model no. TBD

TED

010 Pollutants controlled SOX,HF

TED

Electrostatic Precipitator, high 

### eff. Capture efficiency
100

HLl

TED Destructl collect efficiency
95 Oxidizer combustion parameters

100

TED



## ------- +50

PMIPMIO 100 +99

# 110 Minnesota Pollution 

# @ controlAgency 520 Lafayette RoadNorth St Paul, MN55155-4194 

### Compliance Plan for Control Equipment Air Quality Permit Program



## Facility Information 1) AQ Facility ID No.: 13700005 2) Facility Name: United States Steel Corporation-MinnesotaOre Operations, Minntac 3) Electrostatic Precipitators (includes wet electrostatic precipitators) (control codes 010, 011, 012, 128, 146) Complete the following information for each electrostatic precipitator not already included in an existing individual permit. For changes to parameters of electrostatic precipitatorsalready included in an existing permit, attach a copy of the relevant permit pagewith proposed changes clearly marked.

180 

# 1 Vendor Specification For a "Large" or 'Other" PSEU? 179 CE Number: Using conditioning agent? Vendor Specification



## !Xi NO Yes Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A)

No Yes Conditioning agent flow rate, ifapplicable 

# E NO Yes

TBD

NO Yes

CAM 

### = Compliance Assurance Monitoring PSEU 

### = Pollutant specific emission unit Subject to CAM? Using control equipment rule?

No 

## I3Yes



### [7 No Yes

aq-f 

### l-cd05 3/19/08 TED

TED

No Yes

Page 

### 1 of 

### 8 Voltage

Yes No

No Yes TED

TBD

Large Other 

### [7 NA Yes No Secondary Current

Large Other NA 

## I3Yes No Minimum Fields Online TED


# iZ No 

## I3Yes

Large Other NA 

# €aNO Yes 

## ISI Yes 

## I3 No 

## i8 Large Other 

### [7 NA4) Fabric Filters (control codes 016, 017, 018) Complete the following information for each fabric filter not already included in an existing individual permit. For changes to parametersfor fabric filters already included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked. CE Number:

No OYes 

## q No OYes Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A) Yes 

## q No



## q No OYes

No OYes Using control equipment rule? 

## qYes No

ayes NO



## q No OYes



### 5) PanelNYall Filters (including HEPAfilters) (control codes 058, 101) Mechanically Aided Separators (control code 056,113) Bag leak detector in use? Pressure Drop (inches of water column) Large NA Other

Yes 

## q No



## q No UYes

Complete the following information for each wall or panel filter not already included in an existing individual permit. For changes to parameters for filtersalready included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked. OYes 

## q No



## qYes 

### [7 NO

CE Number: Subject to CAM?

Large other 

## q NA 

## qYes No



## qYes No For a "Large" or "Other" PSEU?



## q Large NA Other
Yes 

## q No

oq-f 

### 1-cd05 31 

### 19/08 

## q Large other NA UYes No



### Page 

### 2 of 

### 8 

# 17 [7 Large NA 

## I7 Other

For a "Large" or "Other" PSEU? Large 

## q Other NA 

## q Large Other 

## q NA 

## q Large Other NA Large 

## q Other 

## q NA Large 

## q Other 

## q NA 

## q Large 

## q Other 

## q NA Control Efficiency Basis (for control and capture efficiencies listed on Foml GI-05A) Using control equipment rule?
OYes 

## q No OYes No Yes No UYes No OYes 

## q No OYes No Subject to CAM?

OYes 

## I7 No OYes No UYes No OYes No OYes 

## q No 

## qYes No6) 

### CycloneslMulticlones (control code 007,008, 009, 076) 

### Complete the following information for each cyclone or multiclone not already included in an existing individual permit. 

### For changes to parameters for cyclones or multiclones already included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked. For a "Large" or "Other" PSEU?

7) Wet Cyclone Separator (control code 057,085) Complete the following information for each wet cyclone separator not already included in an existing individual permit. For changes to parametersfor wet cyclone separators already included in an existing permit, attach a copy of the relevant permit pagewith proposedchanges clearly marked. For a "Large" or
No ayes
No OYes Subject to

No OYes



### aq-f 1-cd05 3/19/08 Page 3 of 

### 8 Water

Yes No

ayes No

No Dyes
No OYes
No Dyes Pressure Drop (inches Large 

## q Other NA Large Other

Yes No equipment rule? Using control Number: CE

, 

### NA Large Other NA Yes No
Yes No
Yes No ofwater column) capture efficiencies listed on Form GI-05A) Control Efficiency Basis (for control and

Large Other 

# 13 NA Large Other NA Large Other NA CAM? pressure (psi) "Other" PSEU?

### 8) Spray Tower (control code 052), Venturi Scrubber (control code 053), Impingement Plate Scrubber (control code 055), or Charged Scrubber (control code 503) Complete the following informationfor each wet scrubber not already included in an existing individual permit. For changes to parameters for wet scrubbers already included in an existing permit, attach a copy of the relevant permit pagewith proposed changes clearly marked. For a "Large" or "Other" PSEU? 

## q Large 

## qOther 

# - .,"

No OYes 

## q NO 

### OYes 

## q No Yes Liquid flow rate (~allmin) CE Number:



## qYes 

## q No



## 17 No Yes

9) 

### Condensation Scrubber (control code 517) Subjectto CAM? Yes 

## q No Using control equipment rule? No OYes Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A)

Large 

## qOther 

# 17 NA



### , DNA Yes 

## q No
Yes 

# 17 No



### NO Dyes

Complete the following informationfor each condensation scrubber not already included in an existing individual permit. For changes to parametersfor condensation scrubbers already included in an existing permit, attach a copy of the relevant permit pagewith proposed changes clearly marked. Pressure Drop (inches of water column)

Large Other NA Large 

## qOther 

## qYes 

## q No 

## q Large 

## 5 Other 

## q NA Yes 

## q No



# I I / Yes 

## q No 

# 1 q Large Other 

### n~IA 

## q Large Other NA

For a 

### "Large" or "Other" PSEU? 

## [7 Large 

## qOther

Page 

### 4 of 

### 8 Subject to CAM?
OYes 

## q No

No OYes 

## 5Yes 

## q No 

## q Large 

## qOther 

# ---

aq-f

### l-cd05 

### 31 19/08 No OYes Steam Supply rate (units) CE Number: Blowdown Rate (units) Using control equipment rule? 

## q No OYes Control Efficiency Basis (for control andcapture efficiencies listed on Form GI-05A)



## qYes 

## q No Pressure Drop (inches ofwater column)



## ONO ayes 

# I q Large 

## q Other 

## R NA 

### UYes 

## q No Large Other 

# - .,-

### 10) Thermal Oxidation (control code 021, 022,131,133, 510) Completethe following information for each thermal oxidizer not already included in an existing individual permit. For changes to parameters for thermal oxidizers already included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked.

11) Catalytic Oxidation (control code 019,020, 109, 116, 509) Complete the following informationfor each catalytic oxidizer not already included in an existing individual permit. For changes to parameters for catalytic oxidizers already included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked. For a "Large" or "Other" PSEU? Large 

### [7 Other NA 

# 1 Large 

## q Other NA Large Other 

## q NA Large Other 

## 17 NA 

## q Large Other 

## q NA

CE Control Efficiency Basis (for control and Using control Catalyst Bed Inletand Outlet Subject to CAM? For a "Large" or Number: 

# 1 ca~ture efficiencies listed on Form Gl-05.4) 

# / equipment rule? 

# I Reactivily (units) 

# I Tempratures 

# 1 1 "Other" PSEU? Inletand Outlet Temperatures (degrees F) Inlet: Outlet: Inlet: 

## - Outlet: Inlet: 

## - Outlet: Inlet: 

## - Outlet: Inlet: 

## - Outlet: Combustion Temperature (degrees 

### F) CE Number:

~ ~ 

# ~ I Residence Time (seconds) Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A)



# 1 q NO 

## qyes 

# 0 1 UNA Subject to CAM? 

## I3Yes NO 

## qYes 

## q No 

## qYes 

## q No Yes 

## 17 No 

# 1

Yes 

## q No Using control equipment rule? 

## q No Yes 

## q NO Yes 

## q NO 

## qYes NO 

## qYes 

## q NO Yes

Inlet: 

## - 

# ( Yes 

## q No 

# I q Large 

## q Other 

# IONO OY~S 

# I outlet:



### aq-f 1-cd05 3/19/08 

### Inlet: 

## - 

# I ONA

No OYes 

## q No OYes



### Page 5 of 

### 8

~- --

~~ 

# 1 Yes No 

# I Large Other 

# IONO OY~S 

# 1 lnlet: 

## - 

# I qYes 

## q No 

# 1 Large 

## qOther Outlet: Inlet: Outlet: Inlet: 

## - - 

### Yes No 

# 1

Yes 

## q No NA Large 

## qOther 

## 17 NA 

## q Large 

## q Other12) 

### Vapor Recovery Systems (including condensers) (control code 047) Complete the following information for each vapor recovery system not already included in an existing individual permit. For changes to parametersfor vapor recovery systems already included in an existing permit, attach a copy of the relevant permit pagewith proposedchanges clearly marked.

Complete the following information for each control device not described above and not aiready included in an existing individual permit. For changes to parametersfor any other control devices that are already included in an existing permit, attach a copy of the relevant permit page with proposed changes clearly marked. CE 

## I Control Efficiencv Basis (forcontrol and 

## I O~eratina Parameters (describe) 

## 1 Subiectto CAM? 

## I For a "Large" or "Other" PSEU? Subjectto CAM?


## qYes No 

## qYes 

## q No
OYes No
OYes 

## q No
Yes No CE Number:



### aq-f 1-cd05 3/19/08 

### Page 

### 6 of 

### 8 For a "Large" or "Other" PSEU? Large Other 

## q Large Other 

## q NA Large Other 

# 17 Large 

## q Other NA 

## q Large Other 

## q NA Temperature Range (degrees F) Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A)

13) Flaring (control code 023) Complete the following informationfor each flare not aiready included in an existing individual permit. For changes to parameters for cyclones or multiclonesalready included in an existing permit, attach a copy of the relevant permit pagewith proposed changes clearly marked.

Number: 176 177 178 

### Condenser Pressure Drop Range (inches of water column)

captureefficiencie; listed on Form GI-05A) 

### Vendor Specification 

# 1 Vendor Specification Vendor Specification Filter Pressure Drop Range (inches of water column)



## --

131 Other Controls Subject to CAM? 

# OYes nYes 

## q No 

# OYes 

# 1 yes 

## q No



# •Yes No CE Number: For a "Large" or "Other" PSEU?


### Large 

## C7 Other 

## q NA 

## q Larae Other NA 

## q Large 

### [3 Other 

## q NA Laige Other 

## q NA 

## q Large 

## qOther 

## qNA Using control equipment rule?
No Yes No OYes 

## q No Dyes No OYes 

## q No OYes Control Efficiency Basis (for control and capture efficiencies listed on Form GI-05A)



## --



# - CEMS, SO2 

# 1 CEMS. SO2 

# 1 Activated Carbon injection. Hg Temperature (indicating presence offlame) (degrees F)

Yes 

## €4No yes 

# rn No OYes 

## IXI No OYes 

## q No Dyes No Large Other 

### (ql NA 

## q Large Other NA 

### [7 Large Other 

### (ql NA 

## q Large 

## q Other 

## q NA Large Other NA

### TABLE A: LIMITS AND OTHER REQUIREMENTS Facility Name: US Steel Cofp

## - Minntsc Permit Number: 13700005

## - 005
Sublect Item: GP 011 Agglomeration Llnes 6 & 7 (Actlon 007) Associated Items: CE 123 Other CE 124 Gravity Colleclor- High Efficiency CE 125 Mulllple Cyclone wlo FlyAsh Reinjection- ~ost Mulliclanss 

# . . C, 

# q 

# - ~\.t~&-a*h&r ?""PL*~-** 

# '*

CE 133 Other CE 134 Gravity Colleclor

# - High Efficiency 

## CG (I(. 

# - FF.\.~ 

## &d 

## Dl73 

## SSCRLLwir eG 171 

# - pt~c) 

## b.t~ ONJ SLQU'~\O.I~ CE 135 Multiple Cyclone wlo FlyAsh RsinJection 

## - Most Multlclones CE 136 Wet Scrubber-High Efliciency wlo Llme EU313 L6 Traveling Grale EU314 LG Recoup SystemAir EU315 L6 Rotary Klln EU 316 L6 Pellet Cooler SecondaryAir EU 332 L7Traveling Grate EU 333 L7 Recoup System Air EU334 L7 Rotary Kilo EU335 L7 PelletCooler Secondary Alr zoo MR 004 NOx 8SO2 CEMS at Line6 Wasle Gas Stack (SV 

## 4.tat MR005 NOx 8 SO2 CEMS at Llne 7Wasle Gas Stack (SV 151) +++4-L6 Wasle Gas Slack 

### SV2oo cod0

# - d. ,-4CUUm~s tus~IJ4 

## s~03Jc)OL
SV 151 L7 Waste Gas Slack ,-Lq,& 

## b3 I I I What to do A. POLLUTANT LIMITS I Why to do It hdr NilrogenOxides: less than or equal lo5000 lbslhour using 24.hour BlackAverage from all five waste gas slacks combined (GP 009 through 011; SV 103,118,127. 144, and 151) at Permit Issuance. 

# I NilrogenOxides: less lhan orequai lo 13300 tonslyear using365-day Rolling Sum from ail five waste gas slacks combined (GP 009 through 011; SV 103,118,127, 144. and 151) at Permit Issuance. ReDresenlalive NOx emlsslon dala shall be used lodemonstrate compliance for the first 365 days. NilrogenOxides: less lhan or equal to 7300 Ionslyear using365.day Rolllng Sum from all five Wasle gas stacks combined (GP 009 through 011; SV 103. 118.127. 144, and 151) no later lhan Feb. f,2010. Title Icondilions: to miligate adverse Impacts on Class Iareas vlslbllily lrom pellet induralion;40 CFR 52.21 (p); Mlnn. R. 7007.3000 Tltle Icondlllons: to mlflgate adverse lmpacls on Class Inreas vlslbililyfrom pellet lnduratlon; 40 CFR 52.21 (p); Mlnn. R. 7007.3000 ITitle Iconditions: to millgale adverse Impacts on Class

Iareas vislbllityfrom pellel induralion: 40 CFR 52.21 (p]; Mlnn. R. 7007.3000 Fluorides: less lhan or cqual lo 132 lbslhour Lslng 3-lio~r Avnragc al Line G Title ICond:linn BACT nmssion I m 1. 40 CTR Wasle Gas StackjS-V-134)andi. 7 Wens Slacm 15l),~~~l.vcly- 2_21fj)(3); Minn. R. 7007 3000.

. Carbon Monoxldo less llian or cq~at to 74 0 lbslho!lr itsing 3-ho~rAvarago al l.inc Tillc 1 Condil'ow RACTcnlisrlon 'm.1. 40 CFR 6 Waslc Gas Slscd (SV 14?)_endL~WaStcGasSlack (Sa1). rcsp*ely.

..... 

## -

. 

# t--

CarbonMonoxld~ less than or eqba. lo 99 Ionslycar using 12-.nontn Rolo:ng St~m Tllle IColdllon: a 1997act'on lnal avo'ded maol (fortrio combdsllonolwoodwasle (wooo. wood bark, and safidua) al Lines 6and (~l~~~:fic~t:o~ ~nder4O CFR 62.21 

# I

Vclot~le Organlc CompoJnas: ess lnan or equa lo 54 3 loslhour using3-hour T~lle ICond lion. DACT cmisson i.m L. 40 

### CFR Average. as propane, a1 Llnc 6 Was10 Gas Stack (SV 144)and Lino 7Wasle Gas 52 210)(3): Minn R. 7007.3000.

~ .- 

# I

- ..... ...... 

### .-
....

## - .- Maller:grealer lhan or equal to 85 perccn! collect'on clficioncy

# . M'nn. R. 7011.0610, s.bp. I(A)(l): Minn It. cntlre em ssion facill~y is in compliance with NAAQS and 

## -

# tiol ,~5, sJbp. 3 -

~ VolaUle Organlc Compodnds: less lnan or cqdai to 39 lonsljwar Lsng $2-month Roll:ng Sum for lnc comOJslion ofwood waslo (wooo,wood balk, and sawaJst) at Un~s>and?comblned.

. ..... Tola Panlc~late Malter: less lhan or cqual lo 0 3 grainslary stanoard cublc foot of oxhs~lst gas unless requlred lo lurlhcr reduce emlsslons to cdntply rvllhthe less slringenl ltmlt of etner Mlnn R. 7011.0730 or Minn R. 7011.0735; or, a lernatively.

IMAAQS, and theemlsslon facility is located nollessthan one-forlh milefrom any 

## 1 1 Tillo ICondillon: a 1997ac! an lhal avoidca ma,'or classificalion irnecr 40 CFR 52 2 1

-. -- - . ... . Minn. R 7011.0510. subp I(A)(1)


# I resldence or public roadway.

### (This Is an alternalive demonslralion of compliance to Total Particulate Malter Limit.) 

# I

### TABLE 

### A: LIMITS

### AND OTHER REQUIREMENTS A-I 

### s 12122108 FacilityName: US Steel Corp - Minnlec Permit Number: 13700005 - 005



# I Nolhcalion of !no Actual Ualo of ln;~ ai Sladup: due 15 days afler 1nil.a SlanJp of Title I conditions: tom llgale advcrso impacts on Class tho last 'nslallcd lravulng gr3lc prehcat Lovt N3xtlurner(s) of al! livc aggiomerator Iaroas v'sibility from pel ct induration;40 CTR 52.21 lilies il.ines 3. 4. 5.6.and 71. The Porm'rted shall 1st nd;v,dJal dolcs GI in:llsl ID): Mlnn 

### I?. 7007.3000 Sulfur Dioxide: iess than or equai lo 2 ibs/million Btu heat inpul .ifa liquidfossn fuel is burned: or iess than or equal lo4 lb~lmlllion Blu heat inpul, ifa solid fossil fuei Is burned. Opaciiy: iess than or equai to 20 percent opacily exceptfor one slx-minule period per hour of.not more lhan 60 parcent opacity. B. OPERATION REQUIREMENTS (Note

# - CEMS requirementscan be found inTable A under Subject Item: Tolal Facllily. Section F. and Subjed Items MR 001 through MR 005: and inTable 8) Inslaii: due before 1213!/2009. Low NOx Burners at the traveling giat8 preheat zone of each line of Agglomerator Llnes 6, and 7. Minn. R. 7011.0610, subp. 2(B)(!)

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

Title Iconditions: to mltigate adverse impacls on Class Iareas vlsibilily from peiiel indurallon; 40 CFR 52.21 (p): Minn. R. 7007.3000



### . ,~. startupof ~ow~0xB'urners'in (he notice. {This is a reminder. This requirement also appear inTable B oithis permit.) FUQI Reslrlctlons: The Permittee shail combust at the klln burner nalumigas, coal. luel oll, andlor types of biomass thal are specilied inAppendln 1of this permit; and a1 lhe preheat burners naluralgas. Otherfuels may be combusted lor a shod geriod of time during a lrialburn as approved by an ernendmen1lo lhis permit

ilarly, the ratioof SV 151 gas flow to tolal heal input of Line 7. The ratio will be 

### .. .
~
Titfe I Condition: Toaddress fuei oplions for the indurallngprocess modificationof 1987-1989, 40 CFR 52,21u)(3); Minn. R.7007.3000; Mlnn. R. 7007.0800, subp. 2

. Healing Value and Usage ofwoodWaste Fuel: a representative woodwaste luel semple shall beconliected and analyzedfor heatingvalue (Btulib) once each calendar quarter. The Permittee shall record, in lonslmonlh, [he amount ofwood waste combusted In lhe kilns of this Group. Title ICondilion: a 1997 action thal avoided major ciassilic~lion under 40 CFR 52.21

### TABLE A: LIMITS AND 

### OTHER REQUIREMENTS Facilily Name: US Steel Corp

## - Minnlac Permit Number: 13700005-005 PerformanceTest: due beforeend of each 60 months slarling 0412012005on the slack that was not tesled in the previous 60-month periodto measure PM and Opacity emissions. PerformanceTest Pre-teslMeetlng: due 7 days before PerformanceTest Minn. R. 7017.2020, subp. 1

Mlnn. R. 7017.2030. subp. 4 ~.