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HomeMy WebLinkAbout2013-01-09 PACKET 05.8.-A SEH MEMORANDUM TO: Jennifer Levitt, PE, City of Cottage Grove FROM: Katie Hill Brandt, PE, Short Elliott Hendrickson, Inc. DATE: January 2, 2013 RE: Review of Draft Permit for 3M Cottage Grove Abrasives Systems Division SEH No. 122701 COTTG In response to your request, Short Elliott Hendrickson, Inc. reviewed the Draft Proposed Amendment to Air Permit 1630017 -004 for the 3M Cottage Grove Abrasives Systems Division (3M) facility located in Cottage Grove, Minnesota. The draft permit was published for public comment on December 21, 2012. The public comment period ends January 22, 2013. The primary operation at this facility is the processing of minerals into powders that are then applied onto abrasive products manufactured at other facilities. Draft Permit Details The proposed permit amendment would allow 3M to install a new firing line consisting of six electric tunnel ovens (also referred to as tunnel dryers) and three natural gas -fired kilns. A tunnel oven is a long, open -ended oven with a conveyor belt passing through it. Emissions from the ovens are vented to the atmosphere. Emissions from one of the kilns will be controlled by a baghouse, and emissions from the other two kilns will be controlled by a gas scrubber. A baghouse is a mechanical filter that removes particulate matter (PM or "dust ") from exhaust air. A gas scrubber uses water or a specific chemical solution to remove (or "scrub ") PM and other pollutants from exhaust air. The installation of an emergency generator would also be authorized by the permit amendment. Additionally, the proposed permit amendment would reallocate allowable emissions of PM between four units at the facility in order to better reflect actual PM emissions from these units. The PM emission rates for two ovens will increase, while the PM emission rates for two kilns will decrease. Thus, the total allowable PM emissions from the facility will not change. Similarly, the proposed permit amendment would change the hourly nitrogen oxide (NOx) emission rates for two units to allow for more operational flexibility in those units. NOx emission rates for one unit will increase, while NOx emission rates for another unit will decrease. The total allowable NOx emissions for the facility will not change. The permit amendment also includes updates based on new and revised regulations. For the first time, allowable greenhouse gas (GHG) emissions and fine particulate matter (PM and PM have been documented in the draft permit. Some permit language has been updated to be consistent with recent changes to the language in the cited regulations. Findings This 3M facility is subject to a facility -wide emissions cap, so allowable emissions from the facility will not increase as a result of this permit amendment. The new baghouse must achieve at least 99% PM removal efficiency, whereas the new gas scrubber is subject to a lower PM removal efficiency requirement of 90 %. While a baghouse is a very efficient way to control PM emissions, it is not effective in high temperature or humid environments. 3M has chosen a gas scrubber to control emissions from the "indirect- fired" kilns, the exhaust from which will be either too hot or too humid for a baghouse. Short Elliott Hendrickson Inc., 3535 Vadnais Center Drive, St. Paul, MN 55110 -5196 SEH is an equal opportunity employer I www.sehinc.com 1 651.490.2000 1 800.325.2055 1 651.490.2150 fax Review of Draft Permit for 3M Cottage Grove Abrasives Systems Division January 2, 2013 Page 2 The draft permit and associated Technical Support Document (TSD) contain conflicting and inaccurate information regarding the required control efficiencies for the proposed new baghouse and gas scrubber. The TSD states that the gas scrubber must achieve a PM control efficiency greater than or equal to 90 %. Page A -28 of the draft permit, however, states that the new scrubber must meet a control efficiency of "less than or equal to 80 %." Instead, this should read " r� than or equal to 90 %," which would be consistent with the required control efficiencies of other scrubbers currently in operation at the 3M facility. Similarly, page A -30 of the draft permit states that the new baghouse must meet control efficiencies "less than or equal to" 99% for PM and 93% for PM and PM2.5. Instead, this should read, " rg eater than or equal to." The draft permit seems to have incorrectly stated the fuel sulfur content limit for the new emergency generator. Page A -26 of the draft permit states that 3M must certify "that the sulfur content does not exceed 0.50 by weight," which corresponds to 5,000 parts per million (ppm). According to federal regulation 40 CFR 80.150, the maximum sulfur content for non -road diesel fuel is 500 ppm (0.05 %) beginning June 1, 2007. As of June 1, 2010, this standard was lowered to 15 ppm (0.0015 %). To comply with this regulation, the permit should require 3M to certify "that the sulfur content does not exceed 0.0015 by weight." KHB /tap \\ sehsb. cst. sehinc.com \projects\ae \c \cottg \common\3m bld 112 permibabrasives systems \cg 3m abrasives systems division firing line installation permit 01- 02- 13.docx MINNESOTA POLLUTION CONTROL AGENCY WEB NOTICE ON DRAFT /PROPOSED AIR EMISSION FACILITY PERMIT NOTICE IS HEREBY GIVEN, that the Commissioner of the Minnesota Pollution Control Agency (MPCA) proposes to issue Air Emission Permit No. 16300017 -004, to 3M Co for their facility located at 10746 Innovation Road Building 112, Cottage Grove, Washington County, Minnesota. The permit action is for construction and operation of the facility. The permit action is a major amendment; therefore, the draft /proposed permit has been placed on public notice. The MPCA is seeking the U.S. Environmental Protection Agency's (EPA) concurrent review of this draft /proposed permit and the EPA 45 -day review period will begin with the 30 -day public review period. No total facility annual emission increase is authorized by this permit action. The new units are subject to the total facility annual emission caps. The permit action encompasses two major amendments. The first is for construction of a new line and control equipment (one wet scrubber and one baghouse) as well as an emergency generator. This permit action authorizes an alterative monitoring plan for two units subject to NSPS UUU. This permit amendment increases Title I limits on existing Nitrogen Oxides (NO emission rates for EU 007, and decreases Title I limits for EU 010 to allow for more flexibility in operations. The second major amendment incorporates revisions to PM Title I emission limits for EU 001 and EU 002. A summary of the Total Facility Limited Potential to Emit (PTE) in tons per year is as follows: Pollutant PM PM 10 PM 2.5 SO 2 NO x VOCs CO CO Total Facility Limited PTE 100 100 100 90 110 90 16.6 61,819 PM = Particulate Matter PM = PM smaller than 10 microns PM 2.5 = PM smaller than 2.5 microns SO = Sulfur Dioxide NO = Nitrogen Oxides VOCs = Volatile Organic Compounds CO = Carbon Monoxide CO = Carbon Dioxide Equivalents as defined in Minn. R. 7007.0100 The Permittee has submitted a pollution prevention progress report pursuant to Minn. Stat. § 115D.08. The preliminary determination to issue the air emission permit is tentative. There are four formal procedures for public participation in the MPCA's consideration of the permit application. Interested persons may (1) submit written comments on the draft /proposed permit; (2) request that the MPCA hold a public information meeting; (3) request the MPCA hold a contested case hearing; and /or (4) submit a petition to the Commissioner requesting that the MPCA Citizens' Board (Board) consider the permit matter. The decision whether to issue the permit and, if so, under what terms, will be presented to the Board for decision if: (1) the Commissioner grants the petition requesting the matter be presented to the Board; (2) an Board member requests to hear the matter prior to the time the Commissioner makes a final decision on the permit; or (3) a request for a contested case hearing is pending. Otherwise, the Commissioner will make the decision. Persons who submit comments or petitions to the MPCA must state (1) their interest in the permit application or the draft permit; (2) the action they wish the MPCA to take, including specific references to the section of the draft permit they believe should be changed; and (3) the reasons supporting their position, stated with sufficient specificity as to allow the MPCA to investigate the merits of the position. As described in Minn. R. 7000.1800, persons who submit requests for a contested case hearing must also state the issues they propose to address in a contested case hearing, the specific relief requested or resolution of the matter, and the reasons (which may be in the form of proposed findings) supporting an MPCA decision to hold a contested case hearing. Failure to comply with these rules exactly may result in a denial of the request. The decision whether to hold a contested case hearing will be made under Minn. R. 7000.1900. Most public libraries throughout the state have copies of the current Minnesota Rules. They are also available on the Internet at www.revisor.lee.state.mn.us The public comment period commences December 21, 2012, and terminates January 22, 2013. Comments must be received in writing at the MPCA by 4:30 p.m. on January 22, 2013. Evidence of timely receipt includes a date /time stamp imprinted on the first page of the written comments by the first floor information and reception area of the MPCA or by the Industrial Division support staff, or receipt by fax. Comments, requests, and petitions should be sent to: Sarah Seelen, Air Quality Permits Section Industrial Division, Minnesota Pollution Control Agency 520 Lafayette Road North, St. Paul, Minnesota 55155 651- 757 -2677 — Voice, 651 - 296 -8717 — Fax A copy of the draft /proposed permit will available on the MPCA's website at http: / /www.pca.state.mn.us /news /data /index.cfm ?PN =1 or will also be mailed to any interested person upon the MPCA's receipt of a written request. Additional materials relating to the issuance of this permit are available for inspection by appointment at the Minnesota Pollution Control Agency, 520 Lafayette Road North, St. Paul, Minnesota 55155, phone 651 - 757 -2677, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday. All MPCA offices may be reached by calling 1- 800 - 657 -3864. DATED: December 21, 2012 Don Smith, P.E., Manager Air Quality Permits Section Industrial Division DRAFT AIR EMISSION PERMIT NO. 16300017 -004 Major Amendment IS ISSUED TO 3M Co 3M - COTTAGE GROVE ABRASIVE SYSTEMS DIVISION 10746 Innovation Road Building 112 Cottage Grove, Washington County, Minnesota 55016 The emission units, control equipment and emission stacks at the stationary source authorized in this permit amendment are as described in the Permit Applications Table. This permit amendment supersedes Air Emission Permit No. 16300017 -004, authorizes the Permittee to operate and construct the stationary source at the address listed above unless otherwise noted in Table A. The Permittee must comply with all the conditions of the permit. Any changes or modifications to the stationary source must be performed in compliance with Minn. R. 7007.1150 to 7007.1500.Terms used in the permit are as defined in the state air pollution control rules unless the term is explicitly defined in the permit. Unless otherwise indicated, all the Minnesota rules cited as the origin of the permit terms are incorporated into the State Implementation Plan (SIP) under 40 CFR § 52.1220 and as such are enforceable by U.S. Environmental Protection Agency (EPA) Administrator or citizens under the Clean Air Act. Permit Type: Federal; Pt 70 /1-imits to Avoid NSR; Operating Permit Issue Date: < > Major Amendment Issue Date: <issue date> Expiration Date: 10/31/2008* Title I Conditions do not expire. * The Permittee may continue to operate this facility after the expiration date of the permit, per the provision under Minn. R. 7007.0450, subp. 3. (Title V Reissuance Application was received 05/06/2008). Don Smith, P.E., Manager Air Quality Permits Section Industrial Division for John Linc Stine Commissioner Minnesota Pollution Control Agency TDD (for hearing and speech impaired only): (651) 282 -5332 Printed on recycled paper containing at least 10% fibers from paper recycled by consumers Permit Applications Table Permit Type Application Date Permit Action Total Facility Operating Permit 04/17/1955 001 Major Amendment 06/06/2005 002 Administrative Amendment application withdrawn 003 Major Amendment; Major Amendment 04/23/2012; 08/6/2012 004 TABLE OF CONTENTS Notice to the Permittee Permit Shield Facility Description Amendment Description Table A: Limits and Other Requirements Table B: Submittals NOTICE TO THE PERMITTEE: Your stationary source may be subject to the requirements of the Minnesota Pollution Control Agency's (MPCA) solid waste, hazardous waste, and water quality programs. If you wish to obtain information on these programs, including information on obtaining any required permits, please contact the MPCA general information number at: Metro Area 651 - 296 -6300 Outside Metro Area 1- 800 - 657 -3864 TTY 651 - 282 -5332 The rules governing these programs are contained in Minn. R. chs. 7000 -7105. Written questions may be sent to: Minnesota Pollution Control Agency, 520 Lafayette Road North, St. Paul, Minnesota 55155 -4194. Questions about this air emission permit or about air quality requirements can also be directed to the telephone numbers and address listed above. PERMIT SHIELD: Subject to the limitations in Minn. R. 7007.1800, compliance with the conditions of this permit shall be deemed compliance with the specific provision of the applicable requirement identified in the permit as the basis of each condition. Subject to the limitations of Minn. R. 7007.1800 and 7017.0100, subp. 2, notwithstanding the conditions of this permit specifying compliance practices for applicable requirements, any person (including the Permittee) may also use other credible evidence to establish compliance or noncompliance with applicable requirements. FACILITY DESCRIPTION: The 3M Cottage Grove Abrasives Systems Division facility processes mineral materials into powders of various sizes for application onto abrasive products manufactured at other facilities. The operations covered by this permit (building 112) together with the operations covered by permits for 3M Cottage Grove — Specialty Additives Building 112 (Abrasives Systems) together with Building 19 (Sintered Abrasives) and Buildings 74, 101, 110 (Specialty Additives) constitutes a single stationary source for federal New Source Review regulations (all in SIC 32xx). Separate Part 70 permits are issued for Building 112 (this permit) and for Buildings 74, 101, 110 and Building 19. AMENDMENT DESCRIPTION: No total facility emission increase is authorized by this permit action. The permit action encompasses two major amendments. The first is for construction of a new line and control equipment (one wet scrubber and one baghouse) as well as an emergency generator. This permit action authorizes an alternative monitoring plan for two units subject to NSPS UUU. This permit amendment increased Title I limits of existing Nitrogen Oxides emission rates for EU 007, decreased Title I limits for EU 010 to allow for more flexibility in operations. The second major amendment incorporates revisions to Particulate Matter Title I emission rates for EU 001 and EU 002. TABLE A: LIMITS AND OTHER REQUIREMENTS A -1 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Table A contains limits and other requirements with which your facility must comply. The limits are located in the first column of the table (What To do). The limits can be emission limits or operational limits. This column also contains the actions that you must take and the records you must keep to show that you are complying with the limits. The second column of Table A (Why to do it) lists the regulatory basis for these limits. Appendices included as conditions of your permit are listed in Table A under total facility requirements. Subject Item: Total Facility What to do Why to do it This facility, along with 3M Cottage Grove Specialty Additives (ID 16300002) and hdr 3M Cottage Grove Building 19 and 111 (ID 16300133) constitute a single source under PSD regulations. EMISSION CAP LIMITS, PROVISIONS, AND REQUIREMENTS hdr Total Particulate Matter: less than 100 tons /year using 12 -month Rolling Sum to be Title I Condition: limit to avoid classification as a major calculated by the 15th day of each month for the previous 12 -month period as source under 40 CFR Section 52.21; described later in this permit. Minn. R. 7007.3000 All Total Particulate Matter (TPM)- emitting equipment is subject to this limit. If the Permittee replaces any TPM- emitting equipment, adds new TPM- emitting equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP LIMITS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. PM < 10 micron: less than 100 tons /year using 12 -month Rolling Sum to be Title I Condition: limit to avoid classification as a major calculated by the 15th day of each month for the previous 12 -month period as source under 40 CFR Section 52.21; described later in this permit. Minn. R. 7007.3000 All Particulate Matter less than 10 microns (PM10)- emitting equipment is subject to this limit. If the Permittee replaces any PM10- emitting equipment, adds new PM10- emitting equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP LIMITS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. PM < 2.5 micron: less than or equal to 100 tons /year using 12 -month Rolling Sum Title I Condition: limit to avoid classification as a major to be calculatied by the 15th day of each month for the previous 12 -month period source udner 40 CFR Section 52.21; as described later in this permit. Minn. Rule. 7007.3000 All Particulate Matter less than 2.5 microns (PM2.5)- emitting equipment is subject to this limit. If the Permittee replaces and PM2.5- emitting equipment, adds new PM2.5 equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP LIMITS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. TABLE A: LIMITS AND OTHER REQUIREMENTS A -2 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Sulfur Dioxide: less than 90 tons /year using 12 -month Rolling Sum to be calculated Title I Condition: limit to avoid classification as a major by the 15th day of each month for the previous 12 -month period as described later source under 40 CFR Section 52.21; in this permit. Minn. R. 7007.3000 All sulfur dioxide (S02)- emitting equipment is subject to this limit. If the Permittee replaces any S02- emitting equipment, adds new S02- emitting equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP REQUIRMENTS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to a new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. Nitrogen Oxides: less than 110 tons /year using 12 -month Rolling Sum to be Title I Condition: limit to avoid classification as a major calculated by the 15th day of each month for the previous 12 -month period as source under 40 CFR Section 52.21; described later in this permit. Minn. R. 7007.3000 All NOx- emitting equipment is subject to this limit. If the Permittee replaces any NOx- emitting equipment, adds new NOx- emitting equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP LIMITS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to a new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. Volatile Organic Compounds: less than 90 tons /year using 12 -month Rolling Sum Title I Condition: limit to avoid classification as a major to be calculated by the 15th day of each month for the previous 12 -month period as source under 40 CFR Section 52.21; described later in this permit. Mlnn. R. 7007.3000 All VOC- emitting equipment is subject to this limit. If the Permittee replaces any VOC- emitting equipment, adds new VOC- emitting equipment, or modifies the existing equipment, such equipment is subject to this permit limit and all of the requirements under EMISSION CAP LIMITS listed as Total Facility requirements. Prior to making the change, the Permittee shall apply for and obtain the appropriate permit amendment. The Permittee is not required to repeat the calculations described in Minn. R. 7007.1200, subp. 2. A permit amendment is needed regardless of the emissions change if the change will be subject to a new applicable requirements or requires revisions to the limits or monitoring and recordkeeping in this permit. Changes to existing monitoring, recordkeeping or reporting requirements require a major amendment. Daily Recordkeeping, NOx: On each day of operation, the Permittee shall Title I Condition: recordkeeping for limit to avoid calculate, record, and maintain records of the total quantity of all materials classification as a major source under 40 CFR Section processed or used at the facility which result in emission of NOx, or hours of 52.21; operation of NOx emitting units. For units using a CEM to measure NOx emissions, Minn. R. 7007.3000 CEM data satisfies this requirement. This shall be based on usage logs. Monthly Recordkeeping, NOx Emissions. Minn. R. 7007.0800, subp. 4 and 5 By the 15th of each month, the Permittee shall calculate and record the following: 1) The total materials used or processed which result in NOx emissions, or the hours of operation for NOx emitting equipment, for the previous calendar month using the daily records. 2) The total NOx emissions for the previous month. 3) The 12 month rolling sum NOx emissions for the previous 12 month period by summing the monthly NOx emissions data for the previous 12 months. Monthly Recordkeeping: By the 15th day of each month, the Permittee shall Title I Condition: To avoid classificiation as major calculate and record the PM, PM10, PM2.5, S02, and VOC emissions for the source and modification under 40 CFR Section 52.21 previous month and the 12 -month rolling sum emissions for the previous 12 month & Minn. R. 7007.3000 period by summing hte montly emissions data for the previous 12 months. Recordkeeping for PM, PM10, PM2.5, S02 and VOC: When the facility -wide actual Title I Condition: recordkeeping for limit to avoid emissions (12 -month rolling sum) equal 50 tons /year or more for PM, PM10, classification as a major source under 40 CFR Section PM2.5, S02, or VOC, the Permittee shall submit a major amendment application 52.21; with proposed daily recordkeeping requirements for the actual emission of these Minn. R. 7007.3000 pollutants. TABLE A: LIMITS AND OTHER REQUIREMENTS A -3 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Insignificant Activities: The Permittee shall include the emissions from Insignificant Title I Condition: limit to avoid classification as a major Activities as listed in Minn. R. 7007.1300 in the monthly calculation of emissions. source under 40 CFR Section 52.21; Minn. R. 7007.3000 OPERATIONAL REQUIREMENTS hdr The Permittee shall comply with National Primary and Secondary Ambient Air 40 CFR pt. 50; Quality Standards, 40 CFR pt. 50, and the Minnesota Ambient Air Quality Minn. Stat. Section 116.07, subds. 4a & 9; Minn. R. Standards, Minn. R. 7009.0010 to 7009.0080. Compliance shall be demonstrated 7007.0100, subp. 7(A), 7(L), & 7(M); upon written request by the MPCA. Minn. R. 7007.0800, subps. 1, 2 & 4; Minn. R. 7009.0010- 7009.0080 Circumvention: Do not install or use a device or means that conceals or dilutes 40 CFR Section 52.1222; emissions, which would otherwise violate a federal or state air pollution control rule, Minn. R. 7011.0020 without reducing the total amount of pollutant emitted. Air Pollution Control Equipment: Operate all pollution control equipment whenever Minn. R. 7007.0800, subp. 2; Minn. R. 7007.0800, the corresponding process equipment and emission units are operated, unless subp. 16(J) otherwise noted in Table A. Operation and Maintenance Plan: Retain at the stationary source an operation and Minn. R. 7007.0800, subp. 14 and Minn. R. 7007.0800, maintenance plan for all air pollution control equipment. At a minimum, the O & M subp. 16(J) plan shall identify all air pollution control equipment and shall include a preventative maintenance program for that equipment, a description of (the minimum but not necessarily the only) corrective actions to be taken to restore the equipment to proper operation to meet applicable permit conditions, a description of the employee training program for proper operation and maintenance of the control equipment, and the records kept to demonstrate plan implementation. Operation Changes: In any shutdown, breakdown, or deviation the Permittee shall Minn. R. 7019.1000, subp. 4 immediately take all practical steps to modify operations to reduce the emission of any regulated air pollutant. The Commissioner may require feasible and practical modifications in the operation to reduce emissions of air pollutants. No emissions units that have an unreasonable shutdown or breakdown frequency of process or control equipment shall be permitted to operate. Fugitive Emissions: Do not cause or permit the handling, use, transporting, or Minn. R. 7011.0150; 40 CFR Section 52.1222 storage of any material in a manner which may allow avoidable amounts of particulate matter to become airborne. Comply with all other requirements listed in Minn. R. 7011.0150. Noise: The Permittee shall comply with the noise standards set forth in Minn. R. Minn. R. 7030.0010 - 7030.0080 7030.0010 to 7030.0080 at all times during the operation of any emission units. This is a state only requirement and is not enforceable by the EPA Administrator or citizens under the Clean Air Act. Inspections: The Permittee shall comply with the inspection procedures and Minn. R. 7007.0800, subp. 9(A) requirements as found in Minn. R. 7007.0800, subp. 9(A). The Permittee shall comply with the General Conditions listed in Minn. R. Minn. R. 7007.0800, subp. 16 7007.0800, subp. 16. MONITORING REQUIREMENTS hdr Monitoring Equipment Calibration: Annually calibrate all required monitoring Minn. R. 7007.0800, subp. 4(D) equipment (any requirements applying to continuous emission monitors are listed separately in this permit). Operation of Monitoring Equipment: Unless otherwise noted in Tables A or B, Minn. R. 7007.0800, subp. 4(D) monitoring a process or control equipment connected to that process is not necessary during periods when the process is shutdown, or during checks of the monitoring systems, such as calibration checks and zero and span adjustments. If monitoring records are required, they should reflect any such periods of process shutdown or checks of the monitoring system. RECORDKEEPING hdr Recordkeeping: Retain all records at the stationary source for a period of five (5) Minn. R. 7007.0800, subp. 5(C) years from the date of monitoring, sample, measurement, or report. Records which must be retained at this location include all calibration and maintenance records. all original recordings for continuous monitoring instrumentation, and copies of all reports required by the permit. Records must conform to the requirements listed in Minn. R. 7007.0800, subp. 5(A). Recordkeeping: Maintain records describing any insignificant modifications (as Minn. R. 7007. 0800, subp. 5(B) required by Minn. R. 7007. 1250, subp. 3), including records of the emissions resulting from those changes. Recordkeeping: Maintain records describing any changes contravening permit Minn. R. 7007. 0800, subp. 5(B) terms (as required by Minn. R. 7007.1350 subp. 2), including records of the emissions resulting from those changes. TABLE A: LIMITS AND OTHER REQUIREMENTS A-4 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 If the Permittee determines that no permit amendment or notification is required Minn. R. 7007.1200, subp. 4 prior to making a change, the Permittee must retain records of all calculations required under Minn. R. 7007.1200. For expiring permits, these records shall be kept for a period of five years from the date the change was made or until permit reissuance, whichever is longer. The records shall be kept at the stationary source for the current calendar year of operation and may be kept at the stationary source or office of the stationary source for all other years. The records may be maintained in either electronic or paper format. REPORTING /SUBMITTALS hdr Shutdown Notifications: Notify the Commissioner at least 24 hours in advance of a Minn. R. 7019.1000, subp. 3 planned shutdown of any control equipment or process equipment if the shutdown would cause any increase in the emissions of any regulated air pollutant. If the owner or operator does not have advance knowledge of the shutdown, notification shall be made to the Commissioner as soon as possible after the shutdown. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R. 7019.1000, subp. 3. At the time of notification, the owner or operator shall inform the Commissioner of the cause of the shutdown and the estimated duration. The owner or operator shall notify the Commissioner when the shutdown is over. Breakdown Notifications: Notify the Commissioner within 24 hours of a breakdown Minn. R. 7019.1000, subp. 2 of more than one hour duration of any control equipment or process equipment if the breakdown causes any increase in the emissions of any regulated air pollutant. The 24 -hour time period starts when the breakdown was discovered or reasonably should have been discovered by the owner or operator. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R. 7019.1000, subp. 2. At the time of notification or as soon as possible thereafter, the owner or operator shall inform the Commissioner of the cause of the breakdown and the estimated duration. The owner or operator shall notify the Commissioner when the breakdown is over. Notification of Deviations Endangering Human Health or the Environment: As soon Minn. R. 7019.1000, subp. 1 as possible after discovery, notify the Commissioner or the state duty officer, either orally or by facsimile, of any deviation from permit conditions which could endanger human health or the environment. Notification of Deviations Endangering Human Health or the Environment Report: Minn. R. 7019.1000, subp. 1 Within 2 working days of discovery, notify the Commissioner in writing of any deviation from permit conditions which could endanger human health or the environment. Include the following information in this written description: 1. the cause of the deviation; 2. the exact dates of the period of the deviation, if the deviation has been corrected: 3. whether or not the deviation has been corrected; 4. the anticipated time by which the deviation is expected to be corrected, if not yet corrected; and 5. steps taken or planned to reduce, eliminate, and prevent reoccurrence of the deviation. Application for Permit Amendment: If a permit amendment is needed, submit an Minn. R. 7007.1150 through Minn. R. 7007.1500; application in accordance with the requirements of Minn. R. 7007.1150 through 40 CFR Section 70.7(d) and 70.7(e) Minn. R. 7007.1500. Submittal dates vary, depending on the type of amendment needed. Extension Requests: The Permittee may apply for an Administrative Amendment Minn. R. 7007.1400, subp. 1(H) to extend a deadline in a permit by no more than 120 days, provided the proposed deadline extension meets the requirements of Minn. R. 7007.1400, subp. 1(H). This provision does not apply to applications for permit reissuance. Emission Inventory Report: due 91 days after end of each calendar year following Minn. R. 7019.3000 through Minn. R. 7019.3100 permit issuance (April 1). To be submitted on a form approved by the Commissioner. Emission Fees: due 60 days after receipt of an MPCA bill. Minn. R. 7002.0005 through Minn. R. 7002.0095 TABLE A: LIMITS AND OTHER REQUIREMENTS A -5 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 The Permittee is required to submit a Risk Management Plan (RMP) under the 40 CFR pt. 68 federal rule, 40 CFR pt. 68. Each owner or operator of a stationary source, at which a regulated substance is present above a threshold quantity in a process, shall design and implement an accidental release prevention program. A complete RMP must be submitted to the RMP Reporting Center, PO Box 3346, Merrifield, VA 22116. RMP submittal information may be obtained at http: / /www.epa.gov /swercepp or by calling 1- 800 - 424 -9346. These requirements must be complied with no later than the latest of the following dates: (1) June 21, 1999; (2) Three years after the date on which a regulated substance is first listed under 40 CFR Section 68.130; or (3) The date on which a regulated substance is first present above a threshold quantity in a process. TABLE A: LIMITS AND OTHER REQUIREMENTS Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: GP 001 Tunnel Dryers Associated Items: EU 050 Tunnel Dryer 7 EU 051 Tunnel Dryer 8 EU 052 Tunnel Dryer 9 EU 053 Tunnel Dryer 10 EU 054 Tunnel Dryer 11 EU 055 Tunnel Dryer 12 SV 039 Tunnel Dryer 7 SV 040 Tunnel Dryer 7 SV 041 Tunnel Dryer 7 SV 042 Tunnel Dryer 8 SV 043 Tunnel Dryer 8 SV 044 Tunnel Dryer 8 SV 045 Tunnel Dryer 9 SV 046 Tunnel Dryer 9 SV 047 Tunnel Dryer 9 SV 048 Tunnel Dryer 10 SV 049 Tunnel Dryer 10 SV 050 Tunnel Dryer 10 SV 051 Tunnel Dryer 11 SV 052 Tunnel Dryer 11 SV 053 Tunnel Dryer 11 SV 054 Tunnel Dryer 12 SV 055 Tunnel Dryer 12 SV 056 Tunnel Dryer 12 A_6 12/24/12 What to do Why to do it THE LIMITS IN GP 001 APPLY INDIVIDUALLY TO EACH UNIT IN GP 001 hdr EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 0.9 Ibs /hour unless required to further reduce emissions to comply with the less stringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735. Minn. R. 7011.0715, subp. 1(A), subp. 2 Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0715, subp. 1(B) TABLE A: LIMITS AND OTHER REQUIREMENTS A -7 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: GP 002 Burners for Kilns 11 and 12 Associated Items: EU 057 Indirect Fired Kilns 11 Burner EU 058 Indired Fired Kiln 12 Burner SV 059 Indirect Fired Kiln 11 Burner SV 060 Indirect Fired Kiln 12 Burner What to do Why to do it THE LIMITS IN GP 002 APPLY INDIVIDUALLY TO EACH UNIT IN GP 002 hdr EMISSION LIMITS hdr Fuels Allowed: Natural gas only. Minn. R. 7005.0100, subp. 35a; Minn. R. 7007.0800, subp.2 Total Particulate Matter: less than or equal to 0.40 Ibs /million Btu heat input . Minn. R. 7011.0515, subp. 1 Opacity: less than or equal to 20 percent except for one six - minute period per hour Minn. R. 7011.0515, subp. 2 of not more than 27 percent opacity. FOR PERIODS OF START -UP hdr The Permittee shall at all times operate and maintain the emission unit subject to 40 CFR Section 63.6(e)(1)(i); 40 CFR Section the NESHAP and its associated air pollution control equipment in a manner 63.7505(b) consistent with good air pollution control practices for minimizing emissions at least to the levels required by all relevant standards, as described at 40 CFR Section 63.6(e)(1)(i). The Permittee shall develop, implement, and maintain a written startup, shutdown, 40 CFR Section 63.7505(e); 40 CFR Section and malfunction plan (SSMP) according to all of the provisions in 40 CFR Section 63.6(e)(3)(i), (v), (vi), (vii), and (viii) 63.6(e)(3). The plan must be available for inspection and copying by the Administrator upon request. During periods of startup, shutdown, and malfunction, the Permittee must operate 40 CFR Section 63.7540(c); 40 CFR Section 63.6(e)(1) and maintain EU 057 and EU 058 (including associated air pollution control and and (3)(ii) monitoring equipment) in accordance with the procedures specified in the SSMP developed under 40 CFR Section 63.6(e)(3)(i). When actions taken by the Permittee during a startup, shutdown, or malfunction 40 CFR Section 63.6(e)(3)(iii) (including actions taken to correct a malfunction) are consistent with the procedures specified in the SSMP, the Permittee must keep records for that event which demonstrate that the procedures specified in the plan were followed. These records may take the form of a checklist, or other effective form of recordkeeping that confirms conformance with the startup, shutdown, and malfunction plan for that event. In addition, the Permittee must keep records of these events as specified in 40 CFR Section 63.10(b). Furthermore, the Permittee shall confirm that actions taken during the relevant reporting period during periods of startup, shutdown, and malfunction were consistent with the SSMP in the Semi - Annual startup, shutdown, and malfunction report required in 40 CFR Section 63.10(d)(5). If an action taken by the Permittee during a startup, shutdown, or malfunction 40 CFR Section 63.6(e)(3)(iv) (including an action taken to correct a malfunction) is not consistent with the procedures specified in the SSMP, and the boiler /process heater exceeds any applicable emission limitation in the relevant emission standard, then the Permittee must record the actions taken for that event and must report such actions within 2 working days after commencing actions inconsistent with the plan, followed by a letter within 7 working days after the end of the event, in accordance with 40 CFR Section 63.10(d)(5). TABLE A: LIMITS AND OTHER REQUIREMENTS A -8 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 001 Batch Oven 1 Associated Items: SV 001 Oven 1 What to do Why to do it Total Particulate Matter: less than or equal to 0.84 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Nitrogen Oxides: less than or equal to 4.4 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; Minn. R. 7007.3000 Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7005.0100, subp. 35a TABLE A: LIMITS AND OTHER REQUIREMENTS A -s 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 002 Batch Oven 2 Associated Items: SV 002 Oven 2 What to do Why to do it Total Particulate Matter: less than or equal to 0.84 Ibs /hour Title I Condition:limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Nitrogen Oxides: less than or equal to 4.4 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; Minn. R. 7007.3000 Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7005.0100, subp. 35a TABLE A: LIMITS AND OTHER REQUIREMENTS A -10 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 004 Crushing, Screening & Material Transfer Associated Items: CE 002 Cartridge filter SV 004 Large Cartridge Filter What to do Why to do it EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 1.0 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0715, subp. 1(A) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0715, subp. 1(B) OPERATIONAL AND MONITORING REQUIREMENTS hdr The Permittee shall operate and maintain the control equipment such that it Title I Condition: limit to avoid classification as a major achieves an overall control efficiency for Total Particulate Matter: greater than or source under 40 CFR Section 52.21 equal to 99 percent control efficiency The Permittee shall operate and maintain the control equipment such that it Title I Condition: limit to avoid classification as a major achieves an overall control efficiency for Particulate Matter < 10 micron: greater source under 40 CFR Section 52.21 than or equal to 99 percent control efficiency Pressure Drop: greater than or equal to 0.5 inches of water column and less than or Title I Condition: limit to avoid classification as a major equal to 8 inches of water column across CE002, unless a new range is set source under 40 CFR Section 52.21; pursuant to Minn. R. 7017.2025, subp. 3, based on the values recorded during the Minn. R. 7007.0800, subp. 4(B) most recent MPCA approved performance test where compliance was demonstrated. Recordkeeping of Pressure Drop: The Permittee shall record the pressure drop Title I Condition: to avoid classification as a major once every 24 hours when in operation. The Permittee shall record the time and source under 40 CFR Section 52.21; date of each pressure drop reading and whether or not the recorded pressure drop Minn. R. 7007.0800, subp. 5 was within the range specified in this permit. Corrective Actions: The Permittee shall take corrective action as soon as possible if Minn. R. 7007.0800, subp. 4, 5, and 14 any of the following occur: visible emissions are observed; the recorded pressure drop is outside the required operating range; or CE002 or any of its components are found during the inspections to need repair. Corrective actions shall return the pressure drop to within the permitted range and /or include completion of necessary repairs identified during the inspection, as applicable. Corrective actions include, but are not limited to, those outlined in the O & M Plan for CE002. The Permittee shall keep a record of the type and date of any corrective action taken. Monitoring Equipment: The Permittee shall install and maintain the necessary Minn. R. 7007.0800, subp. 4 monitoring equipment for measuring and recording pressure drop as required by this permit. The monitoring equipment must be installed, in use, and properly maintained when CE002 is in operation. Periodic Inspections: At least once per calendar quarter, or more frequently as Minn. R. 7007.0800, subp. 4, 5 and 14 required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. The Permittee shall operate and maintain CE002 in accordance with the Operation Minn. R. 7007.0800, subp. 14 and Maintenance (O & M) Plan. The Permittee shall keep copies of the O & M Plan available onsite for use by staff and MPCA staff. TABLE A: LIMITS AND OTHER REQUIREMENTS A -11 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 005 Prefire Kiln Associated Items: CE 003 Wet Scrubber - High Efficiency CE 004 Gas Scrubber (General, Not Classified) SV 005 2 -Stage Scrubber What to do Why to do it EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 1.0 Ibs /hour Minn. R. 7007.0800, subp. 2; Minn. R. 7007.3000; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Nitrogen Oxides: less than or equal to 7.2 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; Minn. R. 7007.3000 Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) OPERATIONAL AND MONITORING REQUIREMENTS hdr Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7005.0100, subp. 35a The Permittee shall operate and maintain CE003 such that it achieves an overall Title I Condition: limit to avoid classification as a major control efficiency for Total Particulate Matter: greater than or equal to 90 percent source under 40 CFR Section 52.21 control efficiency The Permittee shall operate and maintain CE004 such that it achieves an overall Title I Condition: limit to avoid classification as a major control efficiency for Nitrogen Oxides: greater than or equal to 95 percent control source under 40 CFR Section 52.21 efficiency Pressure Drop: greater than or equal to 1.0 inches of water column and less than or Title I Condition: limit to avoid classification as a major equal to 8.0 inches of water column for CE003 unless a new minimum value is set source under 40 CFR Section 52.21 pursuant to Minn. R. 7017.2025, subp. 3, based on the values recorded during the most recent MPCA approved performance test where compliance was demonstrated. Liquid Flow Rate: greater than or equal to 3.0 gallons /minute for CE004, unless a Title I Condition: limit to avoid classification as a major new range is set pursuant to Minn. R. 7017.2025, subp. 3, based on the values source under 40 CFR Section 52.21 recorded during the most recent MPCA approved performance test where compliance was demonstrated. Recordkeeping of Scrubber Operating Parameters: The Permittee shall record the Title I Condition: to avoid classification as a major pressure drop for CE003 and the liquid flow rate for CE004 once each operating source under 40 CFR Section 52.21 day, including the time and date of each reading and whether or not the recorded parameter was within the range specified in this permit. pH of scrubbing liquid: greater than or equal to 9.0 when the inlet gas contain Title I Condition: to avoid classification as a major nitrates for CE004 source under 40 CFR Section 52.21 Recordkeeping of pH for CE004: The Permittee shall record the liquid pH to Title I Condition: to avoid classification as a major CE004 once each operating day, including the time and date of each reading and source under 40 CFR Section 52.21 whether or not the recorded pH was within the range specified in this permit. Corrective Actions: The Permittee shall take corrective action as soon as possible if Minn. R. 7007.0800, subp. 4, 5, and 14 any of the following occur: visible emissions are observed; the pH for CE004 is outside the required range; the recorded flow rate is outside the required operating range; or CE003 and /or CE004 or any of their components are found during the inspections to need repair. Corrective actions shall return the flow rate to within the permitted range and /or include completion of necessary repairs identified during the inspection, as applicable. Corrective actions include, but are not limited to, those outlined in the O & M Plan for CE003 and CE004. The Permittee shall keep a record of the type and date of any corrective action taken. Monitoring Equipment: The Permittee shall install and maintain the necessary Minn. R. 7007.0800, subp. 4 monitoring equipment for measuring and recording pressure, flow rate, and pH as required by this permit. The monitoring equipment must be installed, in use, and properly maintained when CE003 and CE004 is in operation. Periodic Inspections: At least once per calendar quarter, or more frequently as Minn. R. 7007.0800, subp. 4, 5 and 14 required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. TABLE A: LIMITS AND OTHER REQUIREMENTS A -12 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 006 Old Kiln Associated Items: CE 012 Centrifugal Collector - High Efficiency SV 006 Old Kiln What to do Why to do it Total Particulate Matter: less than or equal to 0.4 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Nitrogen Oxides: less than or equal to 0.23 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21 Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7007.0800, subp. 4 TABLE A: LIMITS AND OTHER REQUIREMENTS A -13 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 007 New Kiln #3 Associated Items: CE 005 Centrifugal Collector - High Efficiency CE 006 Centrifugal Collector - High Efficiency CE 007 Gravity Collector - High Efficiency SV 007 New Kiln 3 What to do Why to do it EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 3.2 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; Minn. R. 7007.0800, subp. 2 Nitrogen Oxides: less than or equal to 2.9 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21 Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquefied petroleum gases (propane) Minn. R. 7005.0100, subp. 35a OPERATIONAL REQUIREMENTS hdr Pressure Drop: greater than or equal to 1.0 inches of water column and less than or Title I Condition: limit to avoid classification as a major equal to 10.0 inches of water column for each cyclone collector. When process air source under 40 CFR Section 52.21 flows are reduced such that the pressure drop cannot be maintained above 1 inch water column with both CE005 and CE006 in operation, the total air flow shall be routed through one cyclone and the pressure drop through that cyclone maintained between 1 and 10 inches water column. Recordkeeping for Title I Limit: Record the pressure drop across each cyclone once Title I Condition: to avoid classification as a major each operating day. If only CE005 or CE006 is in operation, only the pressure drop source under 40 CFR Section 52.21 across that cyclone must be recorded. The log shall indicate time periods when either cyclone is not in use. TABLE A: LIMITS AND OTHER REQUIREMENTS A -14 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 008 Kiln 1 Burner Associated Items: SV 008 Kiln 1 What to do Why to do it Total Particulate Matter: less than or equal to 0.03 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7007.0800, subp. 4 TABLE A: LIMITS AND OTHER REQUIREMENTS A -15 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 009 Kiln 2 Burner Associated Items: SV 009 Kiln 2 What to do Why to do it Total Particulate Matter: less than or equal to 0.03 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7007.0800, subp. 4 TABLE A: LIMITS AND OTHER REQUIREMENTS A -16 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 010 Kilns 1 & 2 Associated Items: CE 008 Gas Scrubber (General, Not Classified) SV 010 8 -Stage Scrubber What to do Why to do it EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 0.040 grains /dry standard cubic foot 40 CFR Section 60.732a Nitrogen Oxides: less than or equal to 5.0 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21 OPERATIONAL REQUIREMENTS hdr The Permittee shall operate and maintain the control equipment such that it Title I Condition: limit to avoid classification as a major achieves an overall control efficiency for Total Particulate Matter: greater than or source under 40 CFR Section 52.21 equal to 90 percent control efficiency At all times, including periods of startup, shutdown, and malfunction, the Permittee 40 CFR Section 60.11(d) shall, to the extent practicable, maintain and operate any affected facility including associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions, in accordance with 40 CFR 60.11(d). Periodic Inspections: At least once per calendar quarter, or more frequently as Minn. R. 7007.0800, subp. 4, 5 and 14 required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. Alternative Monitoring Method: 40 CFR Section 60.734(d) Continuously monitor the scrubbing system liquid pressure and scrubbing system liquid flow rate. The pressure monitoring device must be certified by the manufacturer to be accurate within 5 percent of water column gauge pressure at the level of operation. The liquid flow rate monitoring device must be certified by the manufacturer to be accurate within 5 percent of design scrubbing liquid flow rate. Determine and record once each day, an arithmetic average over a 2 -hour period 40 CFR Section 60.735(b) of both the scrubbing system liquid pressure and the flowrate of the scrubbing liquid. CONTINUOUS EMISSION MONITOR REQUIREMENTS hdr Emissions Monitoring: The owner or operator shall use a CEMS to measure NOx Title I Condition: to avoid classification as a major emissions from EU010. source under 40 CFR Section 52.21; Minn. R. 7017.1006 Continuous Operation: CEMS must be operated and data recorded during all Minn. R. 7017.1090, subp. 1 periods of emission unit operation including periods of emission unit start -up, shutdown, or malfunction except for periods of acceptable monitor downtime. This requirement applies whether or not a numerical emission limit applies during these periods. A CEMS must not be bypassed except in emergencies where failure to bypass would endanger human health, safety, or plant equipment. Acceptable monitor downtime includes reasonable periods as listed in Items A, B, C and D of Minn. R. 7017.1090, subp. 2. CEMS Daily Calibration Drift (CD) Test: The CD shall be quantified and recorded at Minn. R. 7017.1170, subp. 3 zero (low - level) and upscale (high - level) gas concentrations at least once daily. The CEMS shall be adjusted whenever the CD exceeds twice the specification of 40 CFR pt. 60, Appendix B. 40 CFR pt. 60, Appendix F, shall be used to determine out -of- control periods for CEMS. Follow the procedures in 40 CFR pt. 60, Appendix F. Cylinder Gas Audit (CGA): due before end of the calendar year following Permit Minn. R. 7017.1170, subp. 1(a) Issuance. Follow the procedures in 40 CFR pt. 60, Appendix F. Cylinder Gas Audit (CGA) Results Summary: due 30 days after end of each Minn. R. 7017.1180, subp. 4 calendar year following Cylinder Gas Audit (CGA) CEMS Relative Accuracy Test Audit (RATA): due before end calendar year of each Minn. R. 7017.1170, subp. 1(b) five -year period following permit issuance. Follow the procedures in 40 CFR pt. 60, Appendix B and Appendix F. Relative Accuracy Test Audit Notification: due 30 days before CEMS RATA. Minn. R. 7017.1180, subp. 2 Relative Accuracy Test Audit Results Summary: due 30 days after end of each Minn. R. 7017.1180, subp. 3 calender quarter in which the CEMS RATA was conducted. TABLE A: LIMITS AND OTHER REQUIREMENTS A -17 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Quality Assurance (QA) Plan: Develop and implement a written QA plan that Minn. R. 7017.1170, subp. 2 covers each CEMS. The plan shall be on site and available for inspection within 30 days after monitor certification. The plan shall contain all of the information required by 40CFR 60, App. F, section 3. Submit all information required to be submitted to EPA under 40 CFR 60.4(a) to the 40 CFR Section 60.4(a) MPCA address shown in the introduction to Table B of this permit. REPORTING /SUBMITTALS hdr Submit written reports semiannually of exceedances of the control device operating 40 CFR Section 60.735(c)(2) & (3) parameters, defined as follows: `Any daily 2 -hour average of the scrubbing system liquid pressure that is less than 90 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubic foot particulate matter standard. `Each daily 2 -hour average wet scrubber liquid flow rate that is less than 80 percent or greater than 120 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubic foot particulate matter standard. TABLE A: LIMITS AND OTHER REQUIREMENTS A -18 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 018 Diesel Powered Emergency Generator Associated Items: SV 018 New Area Emergency What to do Why to do it Opacity: less than or equal to 20 percent opacity once operating temperatures have been attained Minn. R. 7011.2300, subp. 1 Sulfur Dioxide: less than or equal to 0.5 Ibs /million Btu heat input Minn. R. 7011.2300, subp. 2 TABLE A: LIMITS AND OTHER REQUIREMENTS A -19 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 019 Diesel Powered Emergency Generator Associated Items: SV 019 Old Area Emergency What to do Why to do it Opacity: less than or equal to 20 percent opacity once operating temperatures have been attained Minn. R. 7011.2300, subp. 1 Sulfur Dioxide: less than or equal to 0.5 Ibs /million Btu heat input Minn. R. 7011.2300, subp. 2 TABLE A: LIMITS AND OTHER REQUIREMENTS A -20 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 026 Oven 3 Associated Items: SV 024 Oven 3 What to do Why to do it Total Particulate Matter: less than or equal to 0.09 grains /dry standard cubic foot Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7007.0800, subp. 4 TABLE A: LIMITS AND OTHER REQUIREMENTS A -21 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 033 Oven 4 Associated Items: SV 037 Oven 4 What to do Why to do it Total Particulate Matter: less than or equal to 0.09 grains /dry standard cubic foot Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0610, subp. 1(A)(2) Fuels Allowed: Natural gas or liquified petroleum gases (propane) Minn. R. 7007.0800, subp. 4 TABLE A: LIMITS AND OTHER REQUIREMENTS A -22 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 043 Crushing, grinding circuit Associated Items: CE 010 Centrifugal Collector - High Efficiency CE 011 Cartridge Filter SV 036 Dust Collector What to do Why to do it EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 0.08 grains /dry standard cubic foot Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0610, subp. 1(A)(1) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0715 TABLE A: LIMITS AND OTHER REQUIREMENTS A -23 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 056 Indirect Fired Kilns 11 & 12 Associated Items: CE 016 Gas Scrubber (General, Not Classified) MR 004 NOx Monitor SV 057 Indirect Fired Kilns 11 & 12 (Main) SV 058 Indirect Fired Kilns 11 & 12 (Emergency Bypass) What to do Why to do it See CE 016 for scrubber control, monitoring, recordkeeping, reporting and other hdr requirements. The Permittee shall operate and maintaion the gas scrubber (CE 016) at all times [stage 1] that any emission unit controlled by the gas scrubber (EU 056) is in operation. The Title 1 Condition: To avoid classification as a major Permittee shall document periods of non - operation of the control equipment. source and modification under 40 CFR Section 52.21 and Minn. R. 7007.3000 EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 0.040 grains /dry standard cubic foot [stage 1 ] 40 CFR Section 60.732(a) CONTINUOUS EMISSION MONITOR REQUIREMENTS hdr Emissions Monitoring: The owner or operator shall use a CEMS to measure NOx [stage 1 ] emissions from EU056 Title I Condition: to avoid classification as a major source under 40 CFR Section 52.21; Minn. R. 7017.1006 Installation Notification: due 60 days before CEMS installation. The notification [stage 1] shall include plans and drawings of the system. Minn. R. 7017.1040, subp. 1 Continuous Operation: CEMS must be operated and data recorded during all Minn. R. 7017.1090, subp. 1 periods of emission unit operation including periods of emission unit start -up, shutdown, or malfunction except for periods of acceptable monitor downtime. This requirement applies whether or not a numerical emission limit applies during these periods. A CEMS must not be bypassed except in emergencies where failure to bypass would endanger human health, safety, or plant equipment. Acceptable monitor downtime includes reasonable periods as listed in Items A, B, C and D of Minn. R. 7017.1090, subp. 2. CEMS Daily Calibration Drift (CD) Test: The CD shall be quantified and recorded at Minn. R. 7017.1170, subp. 3 zero (low - level) and upscale (high - level) gas concentrations at least once daily. The CEMS shall be adjusted whenever the CD exceeds twice the specification of 40 CFR pt. 60, Appendix B. 40 CFR pt. 60, Appendix F, shall be used to determine out -of- control periods for CEMS. Follow the procedures in 40 CFR pt. 60, Appendix F. Submit written reports semiannually of exceedances of the control device operating 40 CFR Section 60.735(c)(2) & (3) parameters, defined as follows: `Any daily 2 -hr average of teh scrubbing system liquid pressure that is less than 90 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubit foot particulate matter standard. *Each daily 2 -hour average wet scurbber liquid flow rate that is less than 80 percent or greater than 120 percentof the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubit foot particulate matter standard. Continuous Operation: CEMS must be operated and data recorded during all Minn. R. 7017.1090 periods of emission unit operation including periods of emission unit start -up, shutdown, or malfunction except for periods of acceptable monitor downtime. This requirement applies whether or not a numerical emission limit applies during these periods. A CEMS must not be bypassed except in emergencies where failure to bypass would endanger human health, safety, or plant equipment. TABLE A: LIMITS AND OTHER REQUIREMENTS A -24 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Monitoring Data: All data points collected by a CEMS shall be used to calculate Minn. R. 7017.1160, subp. 1 and 2 individual hourly emission averages unless another applicable requirement requires more frequent averaging. In order for an hour of data to be considered, it must contain the following minimum number of data points: A. four data points, equally spaced, if the emission unit operated during the entire hour; B. two data points, at least 15 minutes apart, during periods of monitor calibration or routine maintenance; C. one data point if the emission unit operated for 15 minutes or less during the hour. QA Plan: Develop and implement a written quality assurance plan that covers each Minn. R. 7017.1170, subp. 2 CEMS. The plan shall be on site and available for inspection within 30 days after monitor certification. The plan shall contain all of the information required by 40 CFR pt. 60, Appendix F, Section 3. The plan shall include the manufacturer's spare parts list for each CEMS and require that those parts be kept at the facility unless the Commissioner gives written approval to exclude specific spare parts from the list. Requirement: CEMS Daily Calibration Drift (CD) Test: The CD shall be quantified Minn. R. 7017.1170, subp. 3 and recorded at zero (low - level) and upscale (high - level) gas concentrations at least once daily according to the procedures listed in Minn. R. 7017.1170, subp. 3(A) and (B) and 40 CFR Section 60.13(d)(1) for each pollutant concentration, each diluent monitor, and for each monitor range. The CEMS shall be adjusted whenever the CD exceeds twice the specification of 40 CFR pt. 60, Appendix B. If no span value is specified in the applicable requirement or in a compliance document, the Permittee shall use a span value equivalent to 1.5 times the emission limit. 40 CFR pt. 60, Appendix F, shall be used to determine out -of- control periods for CEMS. Follow the procedures in 40 CFR pt. 60, Appendix F. Cylinder Gas Audit (CGA): due before end of the calendar year following Permit Minn. R. 7017.1170, subp. 1(a) Issuance. Follow the procedures in 40 CFR pt. 60, Appendix F. CEMS Relative Accuracy Test Audit (RATA): due before end calendar year of each Minn. R. 7017.1170, subp. 1(b) five -year following permit issuance. Follow the procedures in 40 CFR pt. 60, Appendix B and Appendix F. Relative Accuracy Test Audit Notification: due 30 days before CEMS RATA. Minn. R. 7017.1180, subp. 2 Relative Accuracy Test Audit Results Summary: due 30 days after end of each Minn. R. 7017.1180, subp. 3 calender year in which the CEMS RATA was conducted. Cylinder Gas Audit (CGA) Results Summary: due 30 days after end of each Minn. R. 7017.1180, subp. 4 calendar year following Cylinder Gas Audit (CGA) Recordkeeping: The owner or operator must retain records of all CEMS monitoring Minn. R. 7017.1130 data and support information for a period of five years from the date of the monitoring sample, measurement or report. Records shall be kept at the source. REPORTING /SUBMITTALS hdr Alternative Monitoring Plan: 40 CFR Section 60.735(c)(2) & (3) Submit written reports semiannually of exceedances of the control device operating parameters, defined as follows: `Any daily 2 -hour average of the initial particulate removal system liquid pressure that is less than 90 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubic foot particulate matter standard. `Each daily 2 -hour average wet scrubber liquid flow rate that is less than 80 percent or greater than 120 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.04 grains /dry standard cubic foot particulate matter standard. Submit all information required to be submitted to EPA under 40 CFR 60.4(a) to the 40 CFR Section 60.4(a) MPCA address shown in the introduction to Table B of this permit. TABLE A: LIMITS AND OTHER REQUIREMENTS A -25 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 059 Direct Fired Kiln 13 Associated Items: CE 017 Fabric Filter - Low Temperature, i.e., T <180 Degrees F SV 061 Direct Fired Kiln 13 What to do Why to do it The Permittee shall operate and maintain the fabric filter (CE 017) at all times that [stage 1 ] any emission unit controlled by the fabric filter (EU 059) is in operation. The Title I Condition: to avoid clasification as a major souce Permittee shall document periods of non - operation of the control equipment. and modification under 40 CFR Section 52.21 and Minn. R. 7007.3000 EMISSION LIMITS hdr Total Particulate Matter: less than or equal to 0.3 grains /dry standard cubic foot of [stage 1 ] exhaust gas unless required to further reduce emissions to comply with the less Minn. R. 7011.0610, subp. 1(A)(1) stringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0735. Opacity: less than 20 percent of exhaust gas unless required to further reduce [stage 1 ] emissions to comply with the less stringent limit of either Minn. R. 7011.0730 or Minn. R. 7011.0610, subp. 1(A)(2) Minn. R. 7011.0735. TABLE A: LIMITS AND OTHER REQUIREMENTS A -26 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: EU 066 Building 112 Emergency Engine What to do Why to do it EMISSION LIMITS hdr Opacity: less than or equal to 20 percent opacity once operating temperatures have [stage 1 ] been attained. Minn. R. 7011.2300, subp. 1 Sulfur Dioxide: less than or equal to 0.50 Ibs /million Btu heat input [stage 1 ] Minn. R. 7011.2300, subp. 2 OPERATING CONDITIONS hdr Fuel type: Diesel only by design. [stage 1 ] Minn. R. 7005.0100, subp. 35a Hours of Operation: The Permittee shall maintain documentation on site that the [stage 1 ] unit is an emergency generator by design that qualifies under the U.S. EPA Minn. R. 7007.0800, subp. 4 & 5 memorandum entitled "Calculating Potential to Emit (PTE) for Emergency Generators" dated September 6, 1995, limiting operation to 500 hours per year. RECORDKEEPING REQUIREMENTS hdr Fuel Supplier Certification: The Permittee shall obtain and maintain a fuel supplier Minn. R. 7007.0800, subps. 4 & 5 certification for each shipment of Diesel, certifying that the sulfur content does not exceed 0.50% by weight. Recordkeeping: Maintain a file of all measurements, maintenance, reports and Minn. R. 7997.0800, subp. 5(C); meets requirements records for at least five years. 40 CFR Section 60.7(f) specifies two years. of 40 CFR Section 60.7(f); Minn. R. 7019.0100, subp. 1 The Permittee shall keep records of fuel type and usage on a monthly basis. [stage 1 ] Minn. R. 7007.0800, subp. 5 Notification of any physical or operational change which increases emission rate: 40 CFR Section 60.7(a)(4); Minn. R. 7019.0100, subp. due 60 days (or as soon as practical) before the change is commenced. 1 Recordkeeping: Maintain records of the occurrence and duration of any startup, 40 CFR Section 60.7(b), Minn. R. 7019.0100, subp. 1 shutdown, or malfunction in the operation of the facility including; any malfunction of the air pollution control equipment; or any periods during which a continuous monitoring system or monitoring device is inoperative. TABLE A: LIMITS AND OTHER REQUIREMENTS Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: CE 009 Cartridge Filter Associated Items: EU 029 New Hammermill EU 030 New Roll Crusher #1 EU 031 New Roll Crusher #2 EU 038 Size Separator EU 039 Size Separator EU 040 Size Separator EU 041 Size Separator EU 042 Size Separator EU 044 New Roll Crusher No. 3 EU 045 Size Separator EU 046 Size Separator A_27 12/24/12 What to do Why to do it Total Particulate Matter: less than or equal to 2.11 Ibs /hour Title I Condition: limit to avoid classification as a major source or modification under 40 CFR Section 52.21; most stringent, meets limit set by Minn. R. 7011.0715, subp. 1(A) Opacity: less than or equal to 20 percent opacity Minn. R. 7011.0715, subp. 1(B) OPERATIONAL AND MONITORING REQUIREMENTS hdr The Permittee shall operate and maintain the control equipment such that it Title I Condition: limit to avoid classification as a major achieves control efficiency for Total Particulate Matter: greater than or equal to 99 source under 40 CFR Section 52.21 percent collection efficiency The Permittee shall operate and maintain the control equipment such that it Title I Condition: limit to avoid classification as a major achieves control efficiency for Particulate Matter < 10 micron: greater than or equal source under 40 CFR Section 52.21 to 99 percent collection efficiency Pressure Drop: greater than or equal to 0.5 inches of water column and less than or Title I Condition: limit to avoid classification as a major equal to 8 inches of water column across CE012, unless a new range is set source under 40 CFR Section 52.21; pursuant to Minn. R. 7017.2025, subp. 3, based on the values recorded during the Minn. R. 7007.0800, subp. 4(B) most recent MPCA approved performance test where compliance was demonstrated. Recordkeeping of Pressure Drop. The Permittee shall record the pressure drop Title I Condition: limit to avoid classification as a major once every 24 hours when in operation. The Permittee shall record the time and source under 40 CFR Section 52.21; date of each pressure drop reading and whether or not the recorded pressure drop Minn. R. 7007.0800, subp. 5 was within the range specified in this permit. Corrective Actions: The Permittee shall take corrective action as soon as possible if Minn. R. 7007.0800, subp. 4, 5, and 14 any of the following occur: visible emissions are observed; the recorded pressure drop is outside the required operating range; or the cartridge filter or any of its components are found during the inspections to need repair. Corrective actions shall return the pressure drop to within the permitted range and /or include completion of necessary repairs identified during the inspection, as applicable. Corrective actions include, but are not limited to, those outlined in the O & M Plan for the cartridge filter. The Permittee shall keep a record of the type and date of any corrective action taken for each filter. Monitoring Equipment: The Permittee shall install and maintain the necessary Minn. R. 7007.0800, subp. 4 monitoring equipment for measuring and recording pressure drop as required by this permit. The monitoring equipment must be installed, in use, and properly maintained when the monitored cartridge filter is in operation. Periodic Inspections: At least once per calendar quarter, or more frequently as Minn. R. 7007.0800, subp. 4, 5 and 14 required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. The Permittee shall operate and maintain the cartridge filter in accordance with the Minn. R. 7007.0800, subp. 14 Operation and Maintenance (O & M) Plan. The Permittee shall keep copies of the O & M Plan available onsite for use by staff and MPCA staff. TABLE A: LIMITS AND OTHER REQUIREMENTS A -28 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: CE 016 Gas Scrubber (General, Not Classified) Associated Items: EU 056 Indirect Fired Kilns 11 & 12 What to do Why to do it The Permittee shall operate and maintain the gas scrubber (CE 016) at all times [stage 1] that any emission unit controlled by the gas scrubber (EU 056) is in operation. The Title I Condition: To avoid classification of changes as Permittee shall document periods of non - operation of the control equipment. major modifications under 40 CFR Section 52.21 & Minn. R. 7007.3000 OPERATIONAL AND MONITORING REQUIREMENTS hdr The Permittee shall operate and maintain the control equipment such that it [stage 1] achieves an overall control efficiency for Total Particulate Matter: less than or equal Title I Condition: recordkeeping for limit to avoid to 80 percent control efficiency classification as a major source under 40 CFR Section 52.21 The Permittee shall operate and maintain the control equipment such that it [stage 1] achieves an overall control efficiency for PM < 10 micron: less than or equal to 80 Title I Condition: recordkeeping for limit to avoid percent control efficiency classification as a major source under 40 CFR Section 52.21 The Permittee shall operate and maintain the control equipment such that it [stage 1] achieves an overall control efficiency for PM < 2.5 micron: less than or equal to 80 Title I Condition: recordkeeping for limit to avoid percent control efficiency classification as a major source under 40 CFR Section 52.21 At all times, including periods of startup, shutdown, and malfunction, the Permittee [stage 1] shall, to the extent practiciable, maintain and operate any affected facility including 40 CFR Section 60.11 (d) associated air pollution control equipment in a manner consistent with good air pollution control practice for minimizing emissions, in accordance with 40 CFR 60.11 (d). Periodic Inspections: At least once per calendar quarter, or more frequently as Mlnn. R. 7007.0800, subp. 4, 5, and 14 required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. Alternative Monotiroing Method: Title I Condition: recordkeeping for limit to avoid Continuously monitor the initial particulate removal system liquid pressure and classification as a major source under 40 CFR Section initial particulate removal system liquid flow rate. The pressure monitoring device 52.21; must be certified by the manufacturer to be accurate within 5 percent of water 40 CFR Section 60.734 (d) column gauge pressure at the level of operation. The liquid flow rate monitoring device must be certified by the manufacturer to be accurate within 5 percent of design scrubbing liquid flow rate. Alternative Monitoring Method: Title I Condition: recordkeeping for limit to avoid Determine and record once each day, an arithmetic average over a 2 -hour period classification as a major source under 40 CFR Section of both the initial particulate removal system liquid pressure and the flowrate of the 52.21; scrubbing liquid. 40 CFR Section 60.735(b) REPORTING /SUBMITTALS hdr Alternative Monitoring Plan: 40 CFR Section 60.735(c)(2) & (3) Submit written reports semiannually of exceedances of the control device operating parameters, defined as follows: `Any daily 2 -hour average of the initial particulate removal system liquid pressure that is less than 90 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubic foot particulate matter standard. *Each daily 2 -hour average wet scrubber liquid flow rate that is less than 80 percent or greater than 120 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.04 grains /dry standard cubic foot particulate matter standard. Submit all information required to be submitted to EPA under 40 CFR 60.4(a) to the 40 CFR Section 60.4(a) MPCA address shown in the introduction to Table B of this permit. TABLE A: LIMITS AND OTHER REQUIREMENTS A -29 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Submit written reports semiannually of exceedances of the control device operating 40 CFR Section 60.735(c)(2) & (3) parameters, defined as follows: `Any daily 2 -hr average of teh scrubbing system liquid pressure that is less than 90 percent of the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubit foot particulate matter standard. *Each daily 2 -hour average wet scurbber liquid flow rate that is less than 80 percent or greater than 120 percentof the average value recorded during the most recent performance test that demonstrated compliance with the 0.040 grains /dry standard cubit foot particulate matter standard. PERFORMANCE TESTING hdr Initial Performance Test: due 180 days after Initial Startup to measure PM emission 40 CFR Section 60.8(a); rate and determine the average scrubbing system liquid pressure and the average 40 CFR Section 63.7; flowrate of the scrubber liquid. The arithmetic averages of the three runs will be 40 CFR Section 60.736; used for determining exceedances. Minn. R. 7017.2020, subp. 1 Initial Performance Test: due 180 days after Initial Startup to measure PM10 40 CFR Section 60.8(a); emission rate and determine the average scrubbing system liquid pressure and the 40 CFR Section 63.7; average flowrate of the scrubber liquid. The arithmetic averages of the three runs 40 CFR Section 60.736; will be used for determining exceedances. Minn. R. 7017.2020, subp. 1 Initial Performance Test: due 180 days after Initial Startup to measure PM2.5 40 CFR SEction 60.8(a); emission rate and determine the average scrubbing system liquid pressure and the 40 CFR Section 63.7; average flowrate of the scrubber liquid. The arithmetic averages of the three runs 40 CFR Section 60.736; will be used for determining exceedances. Minn. R. 7017.2020, subp. 1 TABLE A: LIMITS AND OTHER REQUIREMENTS A -30 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Subject Item: CE 017 Fabric Filter - Low Temperature, i.e., T <180 Degrees F Associated Items: EU 059 Direct Fired Kiln 13 What to do Why to do it The Permittee shall operate, and maintain the fabric filter (CE 017) at all times that [stage 1 ] any emission unit controlled by the fabric filter (EU 059) is in operation. The Title I Condition: To avoid classification as a major Permittee shall document periods of non - operation of the control equipment. source and modification under 40 CFR Section 52.21; Minn. R. 7007.3000 EMISSION AND OPERATIONAL LIMITS hdr The Permittee shall operate and maintain the control equipment such that it Title I Condition: To avoid classification as a major achieves an overall control efficiency for Total Particulate Matter: less than or equal source and modification under 40 CFR Section 52.21 to 99 percent control efficiency and Minn. R. 7007.3000; Minn. R. 7011.0070, subp. 1(A) The Permittee shall operate and maintain the control equipment such that it Title I Condition: To avoid classification as a major achieves an overall control efficiency for PM < 10 micron: less than or equal to 93 source and modification under 40 CFR Section 52.21 percent control efficiency and Minn. R. 7007.3000; To avoid classification as a major source under 40 CFR Section 70.2 and Minn. R. 7007.0200; Minn. R. 7011.0070, subp. 1(A) The Permittee shall operate and maintain the control equipment such that it Title I Condition: To avoid classification as a major achieves an overall control efficiency for PM < 2.5 micron: less than or equal to 93 source and modification under 40 CFR Section 52.21 percent control efficiency and Minn. R. 7007.3000; To avoid classification as a major source under 40 CFR Section 70.2 and Minn. R. 7007.0200; Minn. R. 7011.0070, subp. 1(A) Pressure Drop: greater than or equal to 1.0 inches of water column and less than or [stage 1 ] equal to 15.0 inches of water column , unless a new range is set pursuant to Minn. Title I Condition: To avoid classification as a major R. 7017.2025, subp. 3 based on the values recorded during the most recent source and modification under 40 CFR Section 52.21; MPCA- approved performance test where compliance was demonstrated. The new Minn. R.7007.3000 range shall be implemented upon receipt of the Notice of Compliance letter granting preliminary approval. The range is final upon issuance of a permit amendment incorporating the change. The Permittee shall record the pressure drop at least once every 24 hours. Pressure drop less than the minimum above, when due to replacement of filter bags is not a deviation and should not be reported on the semiannual deviation reports. After bag replacement, the pressure drop must return to at least the minimum within 21 working days, or corrective action must be taken. MONITORING AND RECORDKEEPING hdr Pressure Drop Recordkeepig: The Permittee shall, once every 24 hours, read and [stage 1] record the pressure drop across the fabric filter. The Permittee shall record the time Title I Condition: to avoid classification as a major and date of each pressure drop reading, and whether or not the observed pressure source and modification under 40 CFR Section 52.21 drop was within the range specified in this permit. Recorded values outside the and Mlnn. R. 7007.3000; range specified in this permit are considered Deviations as defined by Minn. R. 40 CFR Section 64.3; 7077.0100, subp. 8a. Minn. R. 7017.0200 The Permittee shall also record and maintain the date of each bag replacement for all fabric filters. Recordkeeping of Pressure Drop. The Permittee shall record the time and date of Title I Condition: To avoid classification as a major each pressure drop reading and whether or not the recorded pressure drop was source and modification under 40 CFR Section 52.21 within the range specified in this permit. and Minn. R. 7007.3000; To avoid classification as a major source under 40 CFR Section 70.2 and Minn. R. 7007.0200; Minn. R. 7011.0080 Corrective Actions: The Permittee shall take corrective action as soon as possible if Minn. R. 7007.0800, subps. 4, 5, and 14 any of the following occur: visible emissions are observed; the recorded pressure drop is outside the required operating range; or the fabric filter or any of its components are found during the inspections to need repair. Corrective actions shall return the pressure drop to within the permitted range, eliminate visible emissions, and /or include completion of necessary repairs identified during the inspection, as applicable. Corrective actions include, but are not limited to, those outlined in the O & M Plan for the fabric filter. The Permittee shall keep a record of the type and date of any corrective action taken for each filter. The Permittee shall maintain each piece of control equipment according to the Minn. R. 7011.0075, subp. 2 manufacturer's specification, shall conduct inspections, and maintain documentation of those actions as required by Minn. R. 7011.0075, subp. 2(A) to 2(I). TABLE A: LIMITS AND OTHER REQUIREMENTS A -31 12/24/12 Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 PERFORMANCE TESTING hdr Initial Performance Test: due 180 days after Initial Startup to measure PM Minn. R. 7017.2020, subp. 1 emissions. Initial Performance Test: due 180 days after Initial Startup to measure PM10 Minn. R. 7017.2020, subp. 1 emissions. Initial Performance Test: due 180 days after Initial Startup to measure PM2.5 Minn. R. 7017.2020, subp. 1 emissions. TABLE B: SUBMITTALS Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 Also, where required by an applicable rule or permit condition, send to the Permit Document Coordinator notices of: accumulated insignificant activities, installation of control equipment, replacement of an emissions unit, and changes that contravene a permit term. Send submittals that are required to be submitted to the U.S. EPA regional office to: Chief Air Enforcement Air and Radiation Branch EPA Region V 77 West Jackson Boulevard Chicago, Illinois 60604 B -1 12/24/12 Table B lists most of the submittals required by this permit. Please note that some submittal requirements may appear in Table A or, if applicable, within a compliance schedule located in Table C. Table B is divided into two sections in order to separately list one -time only and recurrent submittal requirements. Send submittals that are required by the Acid Rain Program to: U.S. Environmental Protection Agency Clean Air Markets Division 1200 Pennsylvania Avenue NW (6204N) Washington, D.C. 20460 Send any application for a permit or permit amendment to: Fiscal Services Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155 -4194 Unless another person is identified in the applicable Table, send all other submittals to: AQ Compliance Tracking Coordinator Industrial Division Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155 -4194 Each submittal must be postmarked or received by the date specified in the applicable Table. Those submittals required by parts 7007.0100 to 7007.1850 must be certified by a responsible official, defined in Minn. R. 7007.0100, subp. 21. Other submittals shall be certified as appropriate if certification is required by an applicable rule or permit condition. TABLE B: ONE TIME SUBMITTALS OR NOTIFICATIONS Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 B_y 12/24/12 What to send When to send Portion of Facility Affected Application for Permit Reissuance due 180 days before expiration of Existing Total Facility Permit Computer Dispersion Modeling Information due 1,096 days after 10/31/2003. Submit Total Facility modeling data for all Cottage Grove facilities as specified in MPCA guidance for Modeling Information Requests (for S02 and NOx). This modeling information is for data collection purposes, no modeling analysis is required at this time. This is a state -only requirement and is not enforceable by the EPA Administrator or citizens under the Clean Air Act. Testing Frequency Plan due 60 days after Initial Performance Test for CE016 PM emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA Testing Frequency Plan due 60 days after Initial Performance Test for CE017 PM emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA. Testing Frequency Plan due 60 days after Initial Performance Test for CE016 PM10 emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA Testing Frequency Plan due 60 days after Initial Performance Test for CE016 PM2.5 emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA Testing Frequency Plan due 60 days after Initial Performance Test or CE017 PM10 emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA. Testing Frequency Plan due 60 days after Initial Performance Test or CE017 PM2.5 emissions. The plan shall specify a testing frequency based on the test data and MPCA guidance. Future performance tests based on 12- month, 36- month, or 60 -month intervals, or as applicable, shall be required upon written approval of the MPCA. TABLE B: RECURRENT SUBMITTALS Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 - 004 B_3 12/24/12 What to send When to send Portion of Facility Affected Excess Emissions /Downtime Reports (EER's) due 30 days after end of each calendar EU010 quarter following Initial Startup of the Monitor Submit Deviations Reporting Form DRF -1 as amended. The EER shall indicate all periods of monitor bypass and all periods of exceedances of the limit including exceedances allowed by an applicable standard, i.e. during startup, shutdown, and malfunctions. Semiannual Deviations Report due 30 days after end of each calendar Total Facility half -year starting 10/31/2003 . The first semiannual report submitted by the Permittee shall cover the calendar half -year in which the permit is issued. The first report of each calendar year covers January 1 - June 30. The second report of each calendar year covers July 1 - December 31. If no deviations have occured, the Permittee shall submit the report stating no deviations. Compliance Certification due 30 days after end of each calendar year Total Facility starting 10/31/2003 (for the previous calendar year). To be submitted on a form approved by the Commissioner, both to the Commissioner and to the US EPA regional office in Chicago. This report covers all deviations experienced during the calendar year. APPENDIX MATERIAL Facility Name: 3M - Cottage Grove Abrasive Systems Div Permit Number: 16300017 -004 AETM00 - Source PaeanwIters MS Excel - takes Format version 1-0 Supported Source Types_ Point, Rectangular Area, Circular Area. PofyWn Area, Wo!lune, Open Pit Parameters I Units iDescAptiDn Type = POINT, AREA, AREA CIRC, AREA POLY, VOLUME, OPEN PIT ID= Souce ID up to 6 charamNs Deis-- = Optional desonlation 6asc- E _ o = m Sam base eleaation above mean sea Iewel Fled - m Release heigWaboije ground Cliam = m Star -WArea diameter PONT and AREA CIRC un } EAt Del rmfsl Exit (POINT l E dt Temp Exittmperature wr onl Release Type VERTICAL, HORIZONTAL, CAPPED POINT art - HORIZONTAL and GAPPED are wm- default bNa options 5' may = m Initial sigma Y OLUh+E on S' fnaZ = m Initial sigma Z aJl AREA and VOLUME only, opfional for all AREA Length X = m X sidle length OPEN PIT, AREA and VOLUME oWy pptional For VOLUME wii be used to calculate a Length Y = Imi Y side length (OPEN :PTT and AREA Rowtion Angle = d reel Clockwise rawbon from North of Y side AREA and OPEN PIT od . Pit Volune = im^3 Volume of th open pit (OPEN. PIT onM Emissxxe rate Ws for POINT and VOLUME. glUm2 for all AREA and OPENPIT Emission Rate = or slrn2 Nun Coords = Number of 000rdinate poiffs (POINT= 1. VOLUME = 1.OPENPIT= 1, AREA = 1. AREA GIRO = 1. AREA POLY >= 3j x l = m X coordinate of sowce location I'm Y1 = rmi Y ordinate of sauce location fm = m Semis X ordreate of s uFce kcwHwt m JAfREA POI-Y Y2 = [MI Sewn daffy Y rowdioate of sauce Vocation rn A:REA POLY X3 = m Additional X coordinate of source lo cation m AREA POLY on Y3 = rn Additional Y coordinate of source location m AREA POLY onl X4 = m Addbxkal X coordinate of source location m AREA POLY onl Y4 = m Additional Y coordinate of source location m (AREA POLY onl NOTE: you may keep adding additional Door irLate pan for an AREA POLY source, be sure to add the hems as well (eg. X5, Y5, etc Q 0 0 7 Q C O 6 d Q L 7 L U Q °- L Q � U C 0 LS O V L � E 'y R > d a }; � y E a 0 U- U) N V � � L O J fn W Q a2Un n U N Lf) Lf) X O) N O (n m N N m N L N L m O N 7 O N N i 7 O (n J 0 Q I W of Q c m 0 m O O U m O 0 m 0) c 0 m N Y T m E Z) O bi H 0 z N O LO LO I`- I-- M I-t qqt — qqt — I-- LO I— LO O r N O LO (O O N M M M N O qqt LO LO M O LO h I-- I-- I-- 1-- 00 O O O 1-- 001-- — N N — O O LO LO LO r— — 00 O LO 00 CO M O LO LO LO LO LO LO LO LO LO LO LO qqt O r— O r— 00 00 00 00 00 I— r— r— r— r— 00 00 O O r— 00 00 00 00 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O (O (O M�qqt LO N N �I-t N O I-- N om I-- qqt N M O LO M — — — M N M r O O O M O N N 00 LO N 00 00 M w O 00 LO O O O I-- LO I-- O 00 (O 00 00 I-- I-- 00 O O r- 7 6 w N M . . . . . . . . . . . . . . . . . 4 O 6 O O 00 — q'i N Lo I-- Lo N Lo — I-- O qqt M M N — LO qqt -t N I-- I-- LO LO M -t M N M M 00 I�- LO 00 LO 00 O LO qqt I-- 0 0 0 0 0 0 0 0 0— O O N N O O O O O M LO I-- qqt O mw mm ow mm woo [--a) 0 0 0 0 0 0 0 0 0[-- O O O O O O (O C) O O O O O O O O O O O O O O O O O O1-- 01-- 01-- 00 1-- O I-- ��[-- O O O I-- O�[-- I-- O O O O O LO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LO O O O O O LO LO 0 LO 0 0 0 LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO r X O O N N N N N O O O O M O O M O N— LO O O O I— r— O� qqt LO O— r 00 -- r — — 0 0 0 0 0 M M I-t N 00 O O O N O M M O N O O O 0 0 0 0 0 0 0 0 0 0 0 0 0 00 00 O — O N O O 0 0— O O O N O O O 0 0 0 0 0 0 0 0 0 0 0 O O O D 0 0 0 O O O O 0 0 0 0 0 0 0 O O J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J ~ I Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q cu N W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W w > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Q O O M M M M M M M M M O M M Ln Ln O N O O M -- -- -- -- O O LO M M co 00 00 00 00 00 00 00 00 00 LO 00 O 00 O I-- M O O 00 O O O O O O O O CO O— CO E O O H �� �� �� �� r — - --t LO � M 00 [-- Cl) O r— N N N N N N N N N LO I'. M O N N O O O co co co co co co Lo O r— O O O 00 O N 00 - 4 O - 4 - 4 4 4 - 4 - 4 - 4 O M O N �� I— r— O O O O O O O O O 00 O r— O Nq-* 00 00 N 00 O— 0 0 0 0 0 0 0 0 q-* 00 M N O O M M M M M M M M M co co co LO M M M N M N N N N N N N N M N co O O N (O N LO LO — r O O LO M M M — — N O LO O O LO r— — — M — — — I— M ..t — ..t 0) (O O LO LO M I— N r— r N O M O M LO N CO M— M N (O CO O O O O O O CO O CO O I > N N O It I— M (O O O O r— 0 N (O 00 LO M LO O— N (O 4 0 0 0 0 0 0 4 LO N O 7 I- r— M O M LO LO M N 00 Nq-t 00 -- O M N O O O N O O O O O O N „ LO LO — N CO I-- N CO CO LO N N N LO N N Lo Lo � r— r— I` r— � N N N N Lo O O O —� � N N ��� M O O N— � Lo M r M M M Lo Lo Lo Lo Lo � O N N N O r M O Lo O Lo Lo O O O Lo Lo Lo Lo O� O M E M M Lo Lo Lo M M M M N N O M N 7 7 N N N N M M 7 O M M N O O O O O O O O O O O O O O N O 0 0 0 0 0 0 0 0 0 0 0 — 0 0 0 co 0 7 M M O O Lf) 'It m m m'It � 00 M M O N N 7 M 00 7 N N 00 M"t Ln I-- I-- N � I— r- 0 . . . . . . . . . . . . . . . . . . . . . . . . 00 00 N N N M N O N 00 00 M M N M Ln 00 O— 00 — O— M M M 00 O M M O r r r N — CN M — — — Lo r > M M M N — — I — O M M M O — LO (O t LO — I- O O N qqt O N O I-- qqt N[�- Nt �qqt N N N LO O 00 I— I— I— I— q1t N m 7 M LO O (O 00 O 00 LO LO LO N M O 00 O M N . . . . . . . . . . . . . . . . w LO LO LO LO LO LO LO LO LO LO LO LO Lf') LO LO M M M N qqt N qqt qqt qqt � � � N N qqt qqt M I-t qqt N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N co to __ m O O N Mqt LO O M O O w N q-* LO (O LO O� M O M N M N M �� LO O O — N M O — — — — — — — — N N Lo I— Lo Lo O O O O O r— Q Q Q (O (O (O Q Q Q O O O 0 0 0 0 0 0 0 0 0 0 0 C� 0 0 0 0 0 0 0 0 0 0 O O O 0 0 0 m m m m m m m m m m m m m m m m m m m 0 0 0 0 0 0 0 0 0 0 zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 0 00 O r r LO O r 00 00 O (O O r r r r r r r M O (O Oqt O M O I-- M M 19 M I-- O O O O N M M N 00 O O O O O 00 0 0 0 0 0 0 I— O LO O 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ��I-t h O [�- M M r LO r LO O N N N N N N O LO r r r M LO LO LO M I— N LO O r M LO LO LO LO LO I— (O r— N M '--t (O LO (O O Lo I— O � M Lo O I— Lo Lo LO N q1t 'It q1t O 00 N I— O 00 CO O O . . . . . . . . O O O N Lo N Lo (O Lo O N O O Lo Lo Lo (O (O O 4 N M M 4 O Lo M M 00 O r 00 N Lo O I r— M M Mq LO X 0 0 I — 00 (O 00 0 0 0 0 0 0 0 0 0 I— r— LO �q9t N N CO I— 00 LO I— �I-t r r O O O O O O r I�- O O O O I-- I-- I-- I-- I-- I-- I-- (O I-- (O (O I— r— I-- I-- I-- I-- (O (O (O (O (O I-- I-- I-- I-- I-- I-- I-- I-- r— r— O r— r— r— r— O O O O O O O O O O O O O O O O O O O O O O O O O 0 0 0 0 0 0 0 LO O O O O LO LO LO LO LO LO LO O O LO LO O O O O O O O O O O O O O O LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO O O (O O O 0— 0 0 0 0 LO C) O O O O O O MM COO M LO Ln �qqt r I-- (O (O qqt (D (N —c r O O O O O O O N O O O O O O LO I— (O O I— O O CO O O O O O D D O r O 0q1t 0 0 0 0 0 N 0 0 0 0 0 . . . . . . . O O O O O O O O 0 0 0 0 0 0 0 0 0 0 O J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J U U V U U U U U U V U U U U U U U U V U U U U U U V U U U U U U U U U U U — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> O 00 r� N � r M Ln O O (O r M M M M M M 00 00 Ln Ln N N 00 M M N N 00 Ln Ln 00 r r N O O N LO M LO N O O N O O M M M M O M M O M M O N N M . . . . . . . . . . . . . . . . I— O 4 r— 0 r— 4 O N N N 4 4 0 0 0 0 0 0 Lo Lo O O Lo Lo O O O O O Lo O O Lo O O Lo O O O 00 00 O O N CO N N r O N N N N N N CO CO N N O LO (O (O (O M M M N N MI-t r 0 M N N N N N N co CO CO r N CO CO CO CO CO M�q9t co r LO 00 00 co 00 qqt qqt r co CO LO r r r r r LO (O 19t O r M LO O O O O O O r LO (O M Nqqt N r r I-- M LO M M I�- O M M I�- O O O O O M r M r LO r M M M 0 0 0 0 (O I-- CO N 00 (O 0 0 0 0 I-- LO (O 00 N LO LO 0 0 0 0 0 0 Lo Lo (0 qt M Lo r r r r r r 0 00 O 00 O N O O N O 00 00 N r I— . . . . . . . . . . . . . . . . . . . . (O O O O O Oq� O r r I-- Oqqt N N N N N N O N N I— M N O O O I-- N r M I-- I-- r r r r r r r r r N co r r N N LO LO M M r O qqt M r I-- O (O O (O (O (O (O I— LO LO I-- qqt LO M I— I-- r N LO M M LO M qqt qqt LO N N 00 N O M I— I` 00 (O O M M M M M M LO r 0 LO LO Oq;t (O (O (O LO rqqt O r O LO LO CO r LO LO h C) C) I-- q1t 00 CO N O h I-- I— I— I— I— � O CO N CO CO O O D r M 00 CO O O N N . . . . . . . . . . . . . . . . . . . . . O O O O O O O O O O O O O O O O O O O O O O O O r r 0 0 0 0 0 0 0 0 . . . . . . . . . . . . . . . . . . . . . . . . . r r r r r r r r r r r r r r r r N r r r r O O O h r— M M M LO LO LO O r O M I— O -t qqt O O O N r— M M LO N r O M O O B O O N W M M 0 M M 0 M 0 N r r r r r (O M M N N r N N N LO (O (O [�- N �� N M M qt Mq � qt 4�q'i 4 4 (O O O O O O O O O O O� O O O O N I-t N q9t q9t q-t � � � q� q� q� q� qqt qqt q9t N Nt qqt Nt N Nt N � � � � N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N I�t LO (O I�- M O O r N 1-t LO (O I— M O O r N M O O O O O O r r r r r r r r r N N N N r N M 19 LO (O I-- M O O M qqt (O (O I-- M O O O O O O O O O O O O O O O O O O O O O O O O O O O O r r N N M M M r N O O O O O O O O O O O O O O O O Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q - - - - - - - r - - - - - - - - Q Q U U U U U U U U U U U U U U U U U U U Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q U U Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 0 O O O N M N M O O O N N LO LO N M r N 0 O N I-- O H O 00 (O (O O r o 00 I�- 00 (O r O O 00 (O LO 00 LO 1 9t LO LO 0 0 0 0 LO LO O rqqt r Mqqt rqqt M O M Nqqt M 00 CO O I-- LO � I- r- O O O O O O O O O O (O (O qqt (O qqt r- q9t r- r- r- r- r- �q9t Mq9t N�q-t 00 r (U (O (O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO (O LO LO LO O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O Ln Ln N 00 00 r M M M M 00 00 I� O 00 O O (O N (O 00 00 00 00 00 O M M N 00 N O (O � 00 r O O I� 00 00 LO � 00 w� 00 ' M M O LO O O 1 -* O N M O r LO r M O M M I-- 1-- 4 O O 4 O O N N 0 0 0 Lo I-- O� Lo I� r r r r r 0 00 O 00 M 0 I� M 0qqt Lo O r rI-t LO LO qqt O O O O LO LO M M LO N I- O�� � O O O O M M 0 r N 0 0 0 I-- 1-- 0 0 0 0 0 0 0 0 0 0 O O O I-- I- r 00 O O O O O O O O O O O O M M O co O O O O O O O O O O O O I-- I-- I-- O O I-- O LO LO LO LO LO LO LO LO LO O O O O O O1-- O 0 0 0 0 0 0 0 0 LO LO O O O O O LO O O O LO 0 0 0 0 0 0 0 LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO LO r 0 O r (O (O t r 0 0 LO LO qt M LO M M M (O r M O N M M N r M I- LO M M LO N N I- N N N (O O N N N N O O O O O O I�- r 0 0 0 M O r 0 0 M LO 0 00 qqt 00 Lo O O O r r O O r r 0 0 0 0 0 0 0 0 LO O O O O O r O 0 0 0 N'--t (O O O O O O O LO O LO � M I- r r I- O O O O O O O O O O O O O O O N O O O O O O O O O O O O LO M 0 0 00 O O O r 0 0qqt 0 0qqt 00 00 O O O O (O M M r M O N O O O O 0 0 0 0 0 0 0 O 0 0 0 0 0 0 0 O O O O O J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J J U U V U U U U U U V U U U U U U U U V U U U U U U V U U U U U U U U V U - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > LO LO N LO M M LO (D r r LO LO LO LO LO LO M LO LO LO LO LO LO LO LO LO LO LO (D r (fl N r r r r r r I - r M M r 0 0 0 r r r r r r LO r r r r r r r r r r r N 0 O I-- 0 0 0 (O N N O O N N LO I- O O O O LO LO LO LO 00 N N N N N N N N N N N M Oqqt M O O O O CO r�qqt CO N N r r M 0 I- M M M M r r Lo N M M LO N M M M M M M r r rqt r N O r I- LO M r r I�- r r LO M r r r r O O I- M LO LO r O N N N N 0 0 0 O O LO O r r O Il- I�- 0 0 0 O O N O O O O O O O LO N LO LO LO LO r r N N q-* O O O N O- O O (O r N O L O (O O O (O - 0 0 0 0 . . . . . . . . . . . . . . . . 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N N N N N N N N N N N N N N N N N N N N N N N N N N N N N I— r— M M r— M LO M O O O�19t -19t— M M N M O M M M M M LO 19t LO N— O M I— M O— M�qqt LO I-- M O1-- Oqqt O Nqqt O (O qqt M I-- O O O LO LO LO ���q9t LO LO LO LO LO LO LO q9t M N— O 00 LO — 00 Oq9t M N— r CO M M M M M M M M CO CO CO CO CO CO CO CO M N N N N — — — r r -- N N N N N N N N N N N N N N N N N N N N N N N N N N N N N — N MI-t LO O1-- M O O N M LO O1-- M O O— N Mqqt LO O r— M O M M M M M M M M M LO LO LO LO LO LO LO LO LO LO 0 1 0 1 �I �I (9 I (9 �I �I (9 I (9 I (.9 (.9 (9 I (9 I (9 I (9 I 0 1 0 1 �I �I (9 I (9 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U J J J J J J J J J J J J J J J J J J J J J J J J J J J J J 00000000000000000000000000000 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > TECHNICAL SUPPORT DOCUMENT For DRAFT /PROPOSED AIR EMISSION PERMIT NO. 16300017 -004 This technical support document (TSD) is intended for all parties interested in the draft /proposed permit and to meet the requirements that have been set forth by the federal and state regulations (40 CFR § 70.7(a)(5) and Minn. R. 7007.0850, subp. 1). The purpose of this document is to provide the legal and factual justification for each applicable requirement or policy decision considered in the preliminary determination to issue the draft /proposed permit. 1. General Information 1.1 Applicant and Stationary Source Location: Table 1. Applicant and Source Address Applicant /Address Stationary Source /Address (SIC Code: 3291) 3M Company 3M Company —Cottage Grove Abrasive 3M Center, Bldg. 224 -5W -03 Systems Division St. Paul, MN 55144 10746 Innovation Rd Bldg 19 Cottage Grove Washington County Contact: Andrew Willing / Tina Mumm Phone: 651-737-3633/651-737-3606 1.2 Facility Description The 3M Cottage Grove Abrasives Systems Division facility processes mineral materials into powders of various sizes for application onto abrasive products manufactured at other facilities. The operations covered by this permit (Building 112) together with the operations covered by permits for 3M Cottage Grove — Specialty Additives (Buildings 74, 101 and 110) and 3M Cottage Grove — Building 19 & 111, constitute a single source under Prevention of Significant Degradation (PSD) regulations. 1.3 Description of the Activities Allowed by this Permit Action This permit action is a major amendment to install a new firing line. The will consist of six tunnel ovens (EUs 050 -055), two indirect fired kilns (EU 056), one direct fired kiln (ELI 059) and associated burners (EUs 057 and 058). The tunnel ovens will be electric and the kilns will be fueled by natural gas. Emissions from the indirect fired kilns will be controlled by a gas scrubber (CE 0016; SV 067 and 068) and the direct filed kiln will be controlled by a baghouse (CE 017; SV 061). An alternative monitoring request has been approved by EPA for scrubber pressure drop for CE 0016. The approval has been attached to this document (Attachment 4). This permit action also authorizes installation of a 400 kW diesel -fired emergency generator (EU 066; SV 075). Technical Support Document, Permit Action Number: 16300017 -002 Page 1 of 8 Date: 12/24/2012 This permit action also changes the hourly NOx emission rate for EU 007 and EU 010 to allow more flexibility in how existing product are run on these units. This permit action also incorporates an older major amendment submitted on February 24, 2012. This major amendment requests changes to permit language based on a performance test for Batch Oven 2 (EU 002). 3M requests new Particulate Matter (PM) emission rates for EU 001 and EU 002. PM emission rates will increase 0.24 lb/hr to 0.84 lb/hr. Voluntary reductions in PM emission rates at Prefire Kiln (EU 005; 0.3 gr /DSCF to 1.0 lb/hr) and New Kiln #3 (EU 007; 4.02 lb/hr to 3.2 lb/hr) provides equivalent reductions in PM to account for increased emission rates for EU 001 and EU 002. Additional changes made to permit: • Addition of Total Facility Particulate Matter less than 10 microns (PM and Particulate Matter less than 2.5 microns (PM 2.5 ) limits of 100 tpy each (same as total facility Particulate Matter (PM) limits of 100 tpy). • Documentation of total facility greenhouse gas (GHG) potential to emit (PTE). • Updated Title I conditions to be consistent with updated language. No changes were made to permit language, on the citations. 1.4. Facility Emissions: No increase in Total Facility emissions is authorized through this permit amendment. This is the first permit action that has been processed for this facility after the effective date of the GHG Tailoring Rule. With this permit action, the facility's GHG PTE is documented. Table 4. Total Facility Limited Potential to Emit Summary * Not reported in MN emission inventory. Table 2. Facility Classification* Classification PM PM 10 PM,., SO z NO ) , CO CO VOC Single All CO tpy tpy tpy tpy tpy tpy Tpy tpy HAP HAPs tpy tpy Total Facility 100 100 100 90 110 11.3 61,819 90 9.74 9.74 Limited Potential Emissions Total Facility 2.13 2.13 * 0.03 7.40 3.10 * 0.21 Actual Emissions (2009) * Not reported in MN emission inventory. Table 2. Facility Classification* Classification Major /Affected Synthetic Minor /Area Minor /Area Source PSD PM, PM 10 , PM 2.5 , S0 2 , CO NO,,, VOC Technical Support Document, Permit Action Number: 16300017 -002 Page 2 of 8 Date: 12/24/2012 Part 70 Permit Program PM, PM PM 2 ," SO, CO NO,, VOC Part 63 NESHAP X *This classification is based on the aggregate PTE of the operations cover by this permit (Abrasives Systems Division) together with the permit for 3M Cottage Grove Specialty Additives and 3M Cottage Grove — Building 19 & 111. 2. Regulatory and /or Statutory Basis New Source Review The changes authorized by this amendment do not increase carbon dioxide equivalent (CO emissions, and therefore are not subject to regulation under NSR for CO ( "subject to regulation" is defined in 40 CFR § 52.21(b)(49)). In addition, the existing facility is subject to limits such that all other NSR regulated air pollutants are less than the major source thresholds for NSR (40 CFR § 52.21(b)(1)). Therefore, as defined by the federal rules, the facility is not considered an existing major source for NSR. The underlying definition of stationary source for PSD requires grouping all facilities under common ownership or control which are on contiguous or adjacent property and which also have the same first two -digit SIC Code. At Cottage Grove, the Abrasives Division facility is classified as SIC Code 32xx as are the Specialty Additives facility and Building 19 and 111. Together with the limits established in the permits for these other two facilities, the entire stationary source (the three facilities combined) remains below major source thresholds under the PSD program. Part 70 Permit Program The facility is a major source under the Part 70 permit program. New Source Performance Standards (NSPS) For the operations covered by this permit, there are no new applicable New Source Performance Standards. 3M requested an alternative monitoring request for scrubber pressure drop monitoring requirements of NSPS UUU, Standards of Performance for Calciners and Dryers in Mineral Industries, for EU 056. 3M received approval for this request and the approval response is attached to this document (Attachment 4). National Emission Standards for Hazardous Air Pollutants (NESHAP) The entire 3M campus is considered a single major source under 40 CFR Part 63. This permit action incorporates the NESHAP for Industrial, Commercial, and Institutional Boilers and Process Heaters (Subp. DDDDD) requirements for start -up of EU 057 (Indirect Fired Kiln 11 Burner) and EU 058 (Indirect Fired Kiln 12 Burner) and the NESHAP for Stationary Reciprocating Internal Combustion Engines (subp. ZZZZ) for start -up of EU 066 (Building 112 Emergency Engine). Compliance Assurance Monitorine (CAM) Technical Support Document, Permit Action Number: 16300017 -002 Page 3 of 8 Date: 12/24/2012 CAM does not apply to the modification allowed in this permit amendment, since the emission units added is controlled by an add -on control device (EU 056; CE 017) and are not a large pollutant specific emission units (EU 050 -055; EU 057 -061). Environmental Review & AERA The facility does not trigger any of the requirements for the need to conduct environmental review, i.e. an Environmental Assessment Worksheet (EAW,) and is not required to perform an AERA. Minnesota State Rules Portions of the facility are subject to the following Minnesota Standards of Performance: • Minn. R. 7011.0510 Standards of Performance for Existing Indirect Heating Equipment • Minn. R. 7011.0515 Standards of Performance for New Indirect Heating Equipment • Minn. R. 7011.0610 Standards of Performance for Fossil -Fuel- Burning Direct Heating Equipment • Minn. R. 7011.2300 Standards of Performance for Stationary Internal Combustion Engines Table 6. Regulatory Overview of Units Affected by the Modification /Permit Amendment Level* Applicable Regulations Comments: Total Title I Condition: PSD: Control efficiency and other operating parameter Facility 40 CFR § 52.21 requirements to limit PM, PM 10 , and PM 2 , 5 PTE to avoid major source classification under PSD. EU 001 Title I Condition: PSD: Control efficiency and other operating parameter & 40 CFR § 52.21; requirements to limit PM PTE to avoid major source EU 002 Minn. R. 7011.0610 classification under PSD. EU 005 Title I Condition: PSD: Control efficiency and other operating parameter & 40 CFR § 52.21; requirements to limit PM PTE to avoid major source EU 007 Minn. R. 7011.0610 classification under PSD. EU 010 40 CFR pt. 60, subp. UUU New Source Performance Standards (NSPS) for Calciners and & Dryers in Mineral Industries. Alternative monitoring EU 056 requirements approved by EPA in a letter dated August 17, 2012. EPA believes monitoring and recording the scrubbing liquid pressure is a reasonable alternative to monitoring and recording the pressure loss through the scrubber. EU 056 40 CFR pt. 63, subp. DDDDD NESHAP for Industrial, Commercial, and Institutional Boilers & and Process Heaters EU 058 EU 066 40 CFR pt. 63, subp. ZZZZ NESHAP for Stationary Reciprocating Internal Combustion Engines. For periods of start -up. Technical Support Document, Permit Action Number: 16300017 -002 Page 4 of 8 Date: 12/24/2012 Level* Applicable Regulations Comments: Minn. R. 7011.2300 Minnesota Standard of Performance for Stationary Internal Combustion Engines *Where the requirement appears in the permit (e.g., EU, SV, GP, etc.). 3. Technical Information 3.1 Calculations of Potential to Emit Attachment 1 to this TSD contains supporting information prepared by the Minnesota Pollution Control Agency and the Permittee. 3.2 Dispersion Modeling Per MPCA policy, as permitted in the original Part 70 permit, the facility triggered the requirement to complete air dispersion modeling to show modeled compliance with the PM10 national ambient air quality standards (NAAQS). In addition, per MPCA practice, a table of the modeled parameters has been added to the permit as an appendix. Other than the specific operating restrictions mentioned above, the parameters listed in Appendix II of the permit describe the operation of the facility at maximum capacity. In other words, the flow rates and temperatures listed in Appendix II represent the minimum parameters at the maximum emission rates. The MPCA does not require any specific compliance demonstration with these parameters because they are worse -case conditions. The purpose of listing the parameters in the permit appendix is to provide a benchmark for determining if and when additional modeling is required. 3.3 Periodic Monitoring In accordance with the Clean Air Act, it is the responsibility of the owner or operator of a facility to have sufficient knowledge of the facility to certify that the facility is in compliance with all applicable requirements. In evaluating the monitoring included in the permit, the MPCA considered the following: • The likelihood of the facility violating the applicable requirements; • Whether add -on controls are necessary to meet the emission limits; • The variability of emissions over time; • The type of monitoring, process, maintenance, or control equipment data already available for the emission unit; • The technical and economic feasibility of possible periodic monitoring methods; and • The kind of monitoring found on similar units elsewhere. The table below summarizes the periodic monitoring requirements for those emission units for which the monitoring required by the applicable requirement is nonexistent or inadequate. Technical Support Document, Permit Action Number: 16300017 -002 Page 5 of 8 Date: 12/24/2012 Table 7. Periodic Monitoring Level* Requirement Additional Discussion (rule basis) Monitoring Total PM, PM10, Daily records of These limits are for the total facility, including Facility PM2.5 < 100 — material usage, fuel insignificant activities. tpy; usage, and /or hours SO2 < 90 tpy; of operations; NOx < 110 tpy; Monthly calculations VOC < 90 tpy of emissions EU 066 Opacity: < 20 % Recordkeeping: Monitoring based on Minnesota Performance (Emergency with exceptions Monthly Fuel Standards for Stationary Internal Combustion Generator) SO2 < 0.5 records and hours of Engines is adequate to have a reasonable Ibs /MMBtu operations assurance of compliance with requirements. (Minn. R. 7011.2300) CE 016 PM control None Monitoring associated with the NSPS is efficiency >_ 90% sufficient to provide a reasonable assurance of (gas PM control Hance. compliance. scrubber) efficiency >_ 90% PM 2 , 5 control efficiency >_ 90% (Title I: 40 CFR § 52.21) Pressure drop and minimum flow rate limits (40 CFR pt. 60 subp. UUU) CE 017 PM control Pressure drop Monitoring based on the Minnesota efficiency >_ 90% record once per 24 Performance Standard for Control Equipment (fabric PM control 10 hrs, O &M, and is adequate to have a reasonable assurance filter) p efficiency >_ 90% inspections, of compliance that control efficiencies for the PM 2 , 5 control corrective actions fabric filters are maintained. efficiency >_ 90% Technical Support Document, Permit Action Number: 16300017 -002 Page 6 of 8 Date: 12/24/2012 *Where the requirement appears in the permit (e.g., EU, SV, GP, etc.). 3.4 Insignificant Activities 3M Cottage Grove Abrasive Systems Division has several operations which are classified as insignificant activities under the MPCA's permitting rules involved in this permit action. These are listed in below. Table 6. Insignificant Activities Insignificant Activity General Applicable Emission limit Discussion Three quality control PM, variable depending For these units, it is highly unlikely that they hoods used to test small on airflow could violate the applicable requirement. In sample of product Opacity < 20% addition, these units are vented inside a Minn. R. 7007.1300 3(G) (Minn. R. 7011.0715) building, so testing for PM or opacity is not feasible. Three vacuum pumps PM, variable depending For these units, it is highly unlikely that they used to operate on airflow could violate the applicable requirement. In equipment. Opacity < 20% addition, these units are vented inside a Minn. R. 7007.1300 3(I) (Minn. R. 7011.0715) building, so testing for PM or opacity is not feasible. 3.5 Permit Organization In general, the permit meets the MPCA Delta Guidance for ordering and grouping of requirements. 3.6 Comments Received The MPCA plans to issue this draft /proposed permit under the provisions of Minn. R. 7007.0750, subp. 7. This rule allows the MPCA to issue permits in two stages. The requirements issued in the first stage — the Stage 1 conditions — are the portions of the draft /proposed permit that relate to the construction activities authorized by the draft /proposed permit. Examples of Stage 1 conditions include emissions limits, restrictions on hours of operation and the recordkeeping associated with that restriction, and requirements to demonstrate initial compliance. In this draft /proposed permit, many Stage 1 conditions are identified as Title I Conditions to avoid classification as a major modification and can be found at the total facility level as well as at EU 0010, EU 056, and EU 059 as well at CE 016 and CE 017. During the public comment period and prior to final permit issuance, the Stage 1 conditions are denoted in the permit by "[Stage 1]." These designations will be removed in Stage 2 (final) permit issuance. Public Notice Period: <start date> - <end date> EPA 45 -day Review Period: <start date> - <end date> 4. Permit Fee Assessment Technical Support Document, Permit Action Number: 16300017 -002 Page 7 of 8 Date: 12/24/2012 Attachment 3 to this TSD contains the MPCA's assessment of Application and Additional Points used to determine the permit application fee for this permit action as required by Minn. R. 7002.0019. The permit action includes two permit applications, both received after the effective date of the rule (July 1, 2009). The permit include the incorporation of two NESHAPs that was triggered by the modification authorized by the amendment applications. 5. Conclusion Based on the information provided by 3M Cottage Grove Abrasives Systems Division, the MPCA has reasonable assurance that the proposed operation of the emission facility, as described in the Air Emission Permit No. 16300017 -004 and this TSD, will not cause or contribute to a violation of applicable federal regulations and Minnesota Rules. Staff Members on Permit Team: Sarah Seelen (permit writer /engineer) Sarah Kilgriff (enforcement) Curtis Stock (stack testing) Kelsey Suddard (peer reviewer) AQ File No. 23AX; DQ 3850, 4076 Attachments: 1. Emissions Increase Calculation Spreadsheets 2. Facility Description and CD -01 Forms 3. Points Calculator 4. EPA Approved Alternative Monitoring for NSPS UUU 5. NAAQS /MAAQS PM10 Air Dispersion Modeling Demonstration Technical Support Document, Permit Action Number: 16300017 -002 Page 8 of 8 Date: 12/24/2012 Attachment 1 Emissions Increase Calculation Spreadsheets AN E o C � 0 E6 E a a LJ Q a o E , LU U � ftl LL p N 6 O LL P O e1 P. Q1 } m i O m o � s m � ❑3 N A N s c e S 0 Y" } b d E � a� wti a� .- i % i C. E; 4 O C � z C) w ; - .11 OE a RN PL m 1 1 g lag 2 g rs a I ca a ; - .11 OE a RN PL �� H lV Q C m � C W p M O W O N } F b r UI N 9 N � r G E w n �P 3 m A� � w� �� ,� b 4 a w n xn M w m .m n M �o c E i. �� m Q up E E IL c c ' o 0 m lk LU :3 A CY X. O E 4 C3 A2 E cn r c7 H ad '13 z m LL LL xr Li fl MEM ti fil E il-I E O SR LL c c 1:1 E va a z C, z 1:1 E 9 9 w w z z Oe Lb ID z 7 ro z w W z m 7 7 z :1 z z z W w t1 LL w w T; EL c QQ 9 ul 9 w 9 Lu ca a z z z l o ol IL w �L LLI a � U) cL 0 -D L , 4 (n 1:1 E aN ry I E I -. 0 E ga m o o co W fl CC 11 S Ra H 0 z 0 LZ Q �2 zIZ2M:Hflz J z uj - z W z 90 m pp Z W w 0- wi CL D I Z s I �-, 1 :5 1 !1 1 -,: z z z z z z C%i z pp Z W w CL D 9 uj L I? w s I �-, 1 :5 1 !1 1 -,: z z z z z § .1 Am 13o a E tr z z L I? w § .1 Am 13o a E tr o Eq c E E c o c O O 0 V-1 ti o L) U z �� Li �' Z m 'a z m W N z (L m 9 z w a_ w w 73 LU w LU CV c LU Sf c T z z 9 v 9 - z L2 w n G1 IL C r 0. C? 0 2 E(n w w w w m A N a' C f0 c m E d Qj a CL $ m r � 0 i c � o m O LL y od Id 2 A M c 0 s 0 v N tIl m } m a a W r N a m r o U m O 2 A J 73 a W r N 1:319 ro 0 M m WC E � 4 �n E� m A J m A ¢ Q ¢ ¢ LLl O � J (� Q d o c a 6 ¢ 4 ¢ N Z a J= 6 ~ 2 4 Z Z Q Z M Lu Lu m U C1 m � O r d a 2 N O t`1 J P9 N � � C W p ® f0 w O u a. r m T X 61 N � V gp 1 A CL c eti �.= 6 z Q w L a Z z Z Z 2 r Q 6 U C1 h L t�l -pa o � V' Z7 Lld 1➢J iLk W UJ 1:319 ro 0 M m WC E � 4 �n E� ME -x {\ m F E CL IL c 2 w w LL \ ) /+i $ ; i \ 0 ri a 0 z ci 1- 2 o u ME -x {\ Attachment 2 CD -01 Forms Attachment 3 Points Calculator Points Calculator 1) AQ Facility ID No.: 16300017 2) Facility Name: 3M Cottage Grove Aprasive System Division 3) Small business? y /n? N 4) DQ Numbers (including all rolled) : 3850;4076 5) Date of each Application Received: February 24, 2012; August 06, 2012 6) Final Permit No. 01300004 -004 7) Permit Staff Sarah Seelen 8) "Work completed" in which .xIs file (i.e. unit 2b, unit 1a, biofuels)? Application Type Administrative Amendment Minor Amendment Applicability Request Moderate Amendment Major Amendment Individual State Permit (not reissuance) Individual Part 70 Permit (not reissuance) Additional Points Modeling Review BACT Review LAER Review CAIR /Part 75 CEM analysis NSPS Review NESHAP Review Case -by -case MACT Review Netting Limits to remain below threshold Plantwide Applicability Limit (PAL) AERA review Variance request under 7000.7000 Confidentiality request under 7000.1300 EAW review Part 4410.4300, subparts 18, item A; and 29 Part 4410.4300, subparts 8, items A Et B; 10, items A to C; 16, items A Et D; 17, items A to C Et E to G; and 18, items B Et C Part 4410.4300, subparts 4; 5 items A Et B; 13; 15; 16, items B Et C; and 17 item D 13850;4076 1 1 1 Points 1 4 10 15 25 50 75 15 15 15 10 10 10 20 10 10 20 15 35 2 Total Points 0 0 0 0 25 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 NOTES: NESHAPs DDDD and ZZZZZ; for periods of start -up. Total Points 45 Details (DQ DQ #) Attachment 4: PA Approved Alternative Monitoring for NSPS UUU SI) S - r,4, & 1 1 5 s UNITED STATES ENVIRONMENTAL PROTECTION AGENCY * I. REGION 5 51 77 WEST JACKSON BOULEVARD PRO CHICAGO, IL 60604-3590 AUG 1 7 2012 Michael W. Hult, P.E. REPLY TO THE ATTENTION OF 3M Environmental, health & Safety Operations 3M Center, 0224-05-W-03 St. Paul, Minnesota 55144-1000 RE: Alternative monitoring of proposed kilns subject to 40 C.F.R. Part 60, Subpart LJUU Dear Mr. Hult: Thank you for your letter dated August 2, 2012. Your letter requests an alternative monitoring procedure for two new proposed kilns (known collectively as EU 056) that will be subject to Standards of Performance for Calciners and Dryers in Mineral Industries, 40 C.F.R. Part 60 Subpart UUU (NSPS UUU), at the 3M Cottage Grove Abrasives facility, located at 10746 Innovation Road, Cottage Grove, Minnesota. For reasons set forth below, the U.S. Environmental Protection Agency approves your request. NSPS UUU at § 60.734(d) requires operators, who use wet scrubbers to use monitoring devices that continuously measure and record: 1) the pressure loss of the gas stream through the scrubber, and 2) scrubber liquid flow rate. Then § 60.735(b) requires that operator "determine and record once each day, from the recordings of the monitoring devices in § 60.734(d), an arithmetic average over a 2-hour period of both the change in pressure of the gas strewn across the scrubber and the flowrate of the scrubbing liquid." You state that 3M will operate a wet scrubbing system, a Venturi scrubber followed by a series of packed bed towers, to control particulate matter (PM) emissions from EU 056. 3M will conduct performance testing on the system, and monitor and record the following during the test: 1) nozzle pressure, also knowii as the scrubbing liquid pressure; and 2) scrubbing liquid flow rate. You state "performance testing conducted on a similar, existing wet scrubber system demonstrated that the [wet scrubbing] system achieves a PM emission rate an order of magnitude below the emission rate required under NSPS UUU,­ and that similar performance is expected of the proposed wet scrubbing system for EU 056. You request that 3M be permitted to monitor: 1) the scrubbing liquid pressure and 2) scrubbing liquid flow rate. 3M requests to monitor the scrubbing liquid pressure in lieu of pressure loss of the gas stream through the scrubber, pursuant to 40 C.F.R. 60.13(1). The alternative monitoring procedure 3M requests is similar to and based on a previous alternative monitoring plan submitted to EPA on December 12, 2007, and approved by EPA on February 7, 2008. EPA believes monitoring and recording the scrubbing liquid pressure is a reasonable alternative to monitoring and recording the pressure loss of the gas through the scrubber. EPA also concurs with 3M's recommendation that a deviation is any instance where the scrubbing Recycled/Recyclable * Printed with Vegetable Oil Based Inks on 100% Recycled Paper (5G% Postconsvner; liquid supply pressure is more than 20 percent below the average value detennined, in accordance with § 60.736(c), during a recently-conducted performance test of EU 056 that demonstrates compliance with the PM standard. If you have any questions regarding this determination, please call Michele R. Jencius of my staff at 312.353.1377. Sincerely yours, Eileen Furey Acting Chief Air Enforcement and Compliance Assurance Branch 2 cc: Bob Beresford Air Compliance Unit Minnesota. Pollution Control Agency Don Sinith Air Quality Permits Section Minnesota Pollution Control Agency Attachment 5: NAAQS /MAAQS PM10 Air Dispersion Modeling Demonstration Minnesota Pollution Control Agency 520 Lafayette Road North 5t. Paul, MN 55155 -4194 AQDMRRF -01 Air Quality Dispersion Modeling Report Review Form (AQDMRRF) for Criteria Pollutant Modeling using AERMOD Doc Type: Air Dispersion Modeling Acronym Information on Page 6 Instructions: This form is used for Minnesota Pollution Control Agency (MPCA) internal use by Air Dispersion Modeler to review for Criteria Pollutant Modeling. Facility Information Project title: 3M- Cottage Grove Site PM10 modeling Submittal date (mm /dd /yyyy): 8/3/2012 AQ file no.: 23AS AQ facility /permit ID no.: 16300002 AQ tracking number: 23AS Three -letter modeling facility ID (ex., XEK = Xcel Energy Allen S. King, MEC = Mankato Energy Center, etc.): 31VIC Facility name: 3M Cottage Grove Site Facility street address: 10745 Inovation Boulevard City: Cottage Grove County: Washington State: MN Zip code: 55016 Elevation at facility: 245.1 m Kathryn Anderson, Wenck Associates, Inc. Facility contact: Tina Mumm Report prepared by: Jared Anderson, Wenck Associates, Inc. Facility contact phone: (651) 737 -3606 Preparer phone Facility contact e -mail: tmumm @mmm.com Preparer e -mail: MPCA air modeler: Jim Sullivan MPCA air permit engi Latitude, Longitude of facility (Decimal degrees to four decimal places): 44.7897 UTM coordinates of facility (NAD83, zone 15 extended only): x = 507,026.98 Kathryn Anderson: (651) 294 -4593 Jared Anderson: (651) 294 -4592 Kathryn Anderson: knderson@wenck.com Jared Anderson: jnderson@wenck.com neer: None assigned at this time. N, - 92.9112 W m East, y = 4,959,598.63 m North List of Files with Names /Descriptions submitted with Modeling Report 1. ® AERMOD input files (*.inp, *.adi, *.ami) ® AERMOD output files (".out, *.ado, *.amo) ® AERMOD plot files (*.plt) ❑ AERMOD post files (*.pst) — If applicable ® AERMOD event files (*.evi, *.evo) — If applicable ❑ AERMOD miscellaneous /other files (MAXDCONT, SUMTABLE, etc.) — If applicable 2. ® AERMOD meteorological surface files (*.sfc) ® AERMOD meteorological upper air /profile files (*.pfl) 3. ® BPIP -PRIME input files ( *.bpi, *.pip) ® BPIP -PRIME output files (*.bpo, *.sum) 4. ® Terrain file(s) for AERMAP(*.dem, *.tif) ® AERMAP input files (*.ami) ® AERMAP output files (*.rou, *.sou, etc.) www.pca.state.mn.us 651 - 296 -6300 800 - 657 -3864 TTY 651 - 282 -5332 or 800 - 657 -3864 • Available in alternative formats aq2 -49 • 4111112 Page 1 of 3 5. ❑ Background data files /background concentrations for applicable pollutants (seasonal, monthly, daily, hourly, etc.) 6. ® Figures for modeling results (*.jpeg, *.bmp, *.pdf) ❑ GIS maps for modeling results (*.shp) 7. ❑ AQDMPS -01 form — if applicable 8. ❑ Other files and supporting documents (SMSv*.xls, FAR sources, hourly background, hourly ozone, README*.doc, etc.): Section 1. Modeling Review - 30 -Day Substantial Completeness Determination Review of modeling report by sections Section 2. Modeling Review - 150 -Day Approval Determination /Permit Conditions Technical review of final modeling renort Substantially Section and section name complete /incomplete Deficiencies and/or comments Files to accompany modeling Substantially Complete No comments on this section Section 1: Acceptable No comments on this section Modeling protocol Substantially Complete Modeling protocol approved on February 3, 2012. Section 2: MPCA AQDMPS spreadsheet was not required for this Changes to modeling protocol Substantially Complete No changes were made. Section 3: The modeled PM10 values are below the applcable Paved roads fugitive dust (optional) Substantially Complete No comments on this section Section 4: this project will require a post - modeling demonstration Modeling results Substantially Complete Modeling demonstration indicates compliance Section 5: Discussion Substantially Complete No comments on this section Section 6: Modeling results figures /maps Substantially Complete No comments on this section Modeling report substantially complete? Substantially Complete Date (mm /dd /yyyy): August 15, 2012 Section 2. Modeling Review - 150 -Day Approval Determination /Permit Conditions Technical review of final modeling renort www.pca.state.mn.us 651 - 296 -6300 800 - 657 -3864 TTY 651 - 282 -5332 or 800 - 657 -3864 • Available in alternative formats aq2 -49 • 4111112 Page 2 of 3 Acceptable/ Review items Unacceptable Deficiencies and/or comments Are all changes from the protocol adequately described and addressed? Acceptable No comments on this section Are the model files consistent with the This proect was developed prioer to July 1, 2011. An MPCA AQDMPS spreadsheet MPCA AQDMPS spreadsheet was not required for this accompanying the permit application? [Select from list] project. The modeled PM10 values are below the applcable Modeling demonstrates compliance with NAAQS / MAAQS. The emission inventory submitted for applicable NAAQS / MAAQS and PSD this project will require a post - modeling demonstration increments? Acceptable audit to evaluate and confirm the emission inventory. www.pca.state.mn.us 651 - 296 -6300 800 - 657 -3864 TTY 651 - 282 -5332 or 800 - 657 -3864 • Available in alternative formats aq2 -49 • 4111112 Page 2 of 3 Modeling report approved? Acceptable Date mm /dd/ August 15, 2012 Recommended permit conditions or related items: (To be determined) Section 3. Recommended Permitting Language Modeling language tier table Pollutant Recommended tier CO Not modeled NO2 Not modeled Pb Not modeled PM2.5 Not modeled PM10 Tier 1 SO2 Not modeled Tier language for each modeled pollutant will be based on the lowest growth level for all averaging times. % of NAAQS / MAAQS: > 90% 90%-75% < 75% Allowable Growth Level: Low Medium High PSD — Limits Tier 4 Tier 2** Tier 1 PSD — No Limits Tier 3 Tier 2** Tier 1 Not PSD — Limits Tier 3"* Tier 2** Tier 1 Not PSD — No Limits Tier 1 Tier 1 Tier 1 Acronyms AERMAP AERMOD Terrain Preprocessor AERMOD AMS /EPA Regulatory Model AQ Air Quality AQDMPS -01 Air Quality Dispersion Modeling Protocol Spreadsheet BPIP -PRIME Building Profile Input Program for PRIME CO Carbon Monoxide MAAQS Minnesota State Ambient Air Quality Standard MPCA Minnesota Pollution Control Agency NAAQS National Ambient Air Quality Standard NO 2 Nitrogen Dioxide Pb Lead PM 10 Particulate Matter less than 10 um in size PM 2 . 5 Particulate Matter less than 2.5 um in size PSD Prevention of Significant Deterioration Program SO 2 Sulfur Dioxide www.pca.state.mn.us 651 - 296 -6300 800 - 657 -3864 TTY 651 - 282 -5332 or 800 - 657 -3864 • Available in alternative formats aq2 -49 • 4111112 Page 3 of 3