Technical Support Document For Draft Air Emission Permit No

Transcription

1 Technical Support Document For Draft Air Emission Permit No This technical support document (TSD) is intended for all parties interested in the draft 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 , 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 permit. 1. General information 1.1 Applicant and stationary source location: Table 1. Applicant and source address Applicant/Address David Crisman 5951 Clearwater Drive Minnetonka, Minnesota Contact: David Crisman Phone: Stationary source/address (SIC Code: 3569, 3999) GE Osmonics Inc 5951 Clearwater Drive Minnetonka, MN Facility description GE Osmonics, Inc. produces a variety of water and other fluids purification and treatment equipment. GE Osmonics operations include the manufacture of various separation membranes and other fluid system components. These processes result in air emissions of mainly VOC and HAPs, primarily, as a result of solvent release from membrane coating lines or equipment painting as a result of systems assembly. Finished products include flat sheet membrane, membrane elements, filters, and water purification systems and equipment. 1.3 Description of the activities allowed by this permit action This permit action is Major Amendment. This permit action authorizes three items at the GE Osmonics Minnetonka, MN facility. The first item authorizes the construction of the Thin Film Pilot Coater line at the facility. The Thin Film Pilot Coater line will consist of: EQUI 54 (EU 039) Thin Film Pilot Coater Dryer #1 EQUI 55 (EU 040) Thin Film Pilot Coater Dryer #2 EQUI 56 (EU 041) Thin Film Pilot Coater Coating Enclosure STRU 40 (SV 042) Thin Film Pilot Coater Dryer #1 Exhaust STRU 41 (SV 043) Thin Film Pilot Coater Dryer #2 Exhaust The Thin Film Pilot coater (EQUI 56/EU 041) uses primarily isopar (a VOC) as a solvent. It will be constructed such that the coating enclosure exhaust will feed into Dryer #1 (EQUI 54/EU 039) and Dryer #2 (EQUI 55/EU 040), and the Dryers will exhaust to individual stacks (STRU 40/SV 042 and STRU 41/SV 043). Technical Support Document, Permit Number: Page 1 of 11

2 The second item authorizes the construction of the Polysulfone Pilot Coater line at the facility. Polysulfone Pilot Coater line will consist of: EQUI 57 (EU 042) Polysulfone Pilot Coater Process STRU 42 (SV 044) Polysulfone Pilot Coater Coating Process Exhaust TREA 9 Polysulfone Pilot Coater Water Bath Tanks The Polysulfone Pilot Coater (EQUI 57/EU 042) uses dimethylformamide (DMF), a HAP, as a solvent, with the coating enclosure and a series of rinse tanks (TREA 9) exhausting to a common stack (STRU 42/SV 044). The HAP used in this process line to manufacture the substrate is liquid-extracted. The Polysulfone Pilot Coater will remove greater than 90% of potential VOC emissions using the water baths. Both lines will use existing coating mixing areas. Both lines are subject to limited requirements from 40 CFR 60 Subpart VVV because they are below the 95 Mg/yr threshold. The facility will continue to operate within its current facility wide VOC/HAP emission caps to remain a state permit. In the previous permit action ( ), Spray Booth/Coating Line - Coater 7 & Mixing (EQUI 32) was added as a new emission unit. EQUI 32 is a new membrane coating line which includes a new coater and a new coating mix vessel. Both Coater 7 and the mixing vessel are subject to NSPS-Subpart VVV. Coater 7 will comply with Subpart VVV by removing greater than 90% of potential VOC emissions using a series of water bath tanks (TREA 8). A small fraction of VOC will be vented to the unpermitted scrubber. The coating mix vessel will be enclosed and will vent to thermal oxidizer (TREA 2) to comply with Subpart VVV. Under Subpart VVV, the water bath control technology has to be approved by EPA to be an alternative means of emission limitation. In permit action , Subpart VVV alternative means of emission limitation requirements were not incorporated into the permit for Coater 7 & Mixing nor had EPA s approval of the alternative means of emission limitation been requested. For this permit action , EPA s approval has been requested and granted as provided in the attached letter dated October 23, EPA s alternative means of emission limitation requirements are incorporated into the current permit action. This permit action combines DQ # 5214 (a major amendment, application received April 24, 2015) into DQ # 5650 (a major amendment, application received September 7, 2016). DQ #5214 requested the addition of a scrubber as an addition to the Coater 7 line controls. In this permit action, the Permittee requested that the Coater 7 scrubber not be included in the permit. The MPCA has a combined operating and construction permitting program under Minn. R. ch. 7007, and under Minn. R Under that authority, this permit action authorizes construction. 1.4 Description of notifications and applications included in this action Table 2. Notifications and applications included in this action Date received Application/notification type and description 04/24/2015 Major Amendment (IND ) 09/07/2016 Major Amendment (IND ) 1.5 Facility emissions: Table 3. Title I Emissions Summary Technical Support Document, Permit Number: Page 2 of 11

3 Unlimited potential emissions from the modification (tpy) Limited potential emissions from the modification (tpy) NSR/112(g) threshold for new major source (tpy) Pollutant PM No PM No PM No NOX No SO No CO No Ozone (VOC) 978. ** 250 No Lead 9.0E E No CO2e* ,000 No Individual and total HAPs 607/607 *** 10/25 No *Carbon dioxide equivalents as defined in Minn. R ** Existing VOC cap remains in place *** Existing HAP cap remains in place NSR/112(g) review required? (yes/no). Table 4. Facility Classification Classification Major Synthetic minor/area Minor/area PSD Part 70 Permit Program Part 63 NESHAP 1.6 Changes to permit The following is a general description of the permit changes made: Updated Total Facility requirements to reflect current MPCA templates and standard citation formatting. Authorized the addition of two new coating lines: Thin Film Pilot Polysulfone Pilot Coater Added Coater 7 Water Bath Tanks control requirements as per EPA s approval letter. Added Coater 11 and Thin Film Pilot Coater Line dryers into COMG 04, which was also relabeled as dryers. Natural gas fuel usage requirements as well as recordkeeping was also added. Added Thin Film Pilot (EU 56) and Polysulfone Pilot (EU 57) Coaters to COMG 10 Moved RTO monitoring requirements from EQUI 32 to TREA 2. Removed VOC Precap requirement from COMG 5 (VOC limit). Changed wording from calculated in the highest formula concentration or the actual concentration to calculated in the highest formula concentration if a range is given, otherwise the actual concentration. X X X 2. Technical Information 2.1 New source review (NSR) Technical Support Document, Permit Number: Page 3 of 11

4 The permit carries forward the VOC limit on the facility such that it is a minor source under New Source Review regulations. No changes are authorized by this permit. 2.2 Part 70 permit program The permit carries forward the VOC/HAP limits on the facility such that it is a nonmajor source under the Part 70 permit program. 2.3 New source performance standards (NSPS) The proposed Thin Film Coater and Polysulfone Pilot Coater are subject to the New Source Performance Standard, Subpart VVV Standards of Performance for Polymeric Coating of Supporting Substrates Facilities. The proposed Thin Film Coater and Polysulfone Pilot Coater both have VOC throughputs less than 95 Mg/yr (104.5 ton/yr), and are subject only to monitoring and recordkeeping requirements. The existing Coater 7 line is also subject to the New Source Performance Standard, Subpart VVV Standards of Performance for Polymeric Coating of Supporting Substrates Facilities. This permit action adds the requirements provided in EPA s alternate control device approval (40 CFR ). 2.4 National emission standards for hazardous air pollutants (NESHAP) The permit carries forward the HAP limits on the facility such that it is a nonmajor source under the Part 63 permit program. In addition, the Permittee has stated that no other area source NESHAPs apply to this modification. 2.5 Compliance assurance monitoring (CAM) CAM does not apply to the modification allowed in this permit amendment, since the emission unit added is not a large pollutant specific emission unit (PSEU) or other PSEU and the facility has limits to avoid major source status. 2.6 Minnesota state rules Portions of the facility are subject to the following Minnesota Standards of Performance: Minn. R Standards of Performance for Existing Indirect Heating Equipment Minn. R Standards of Performance for New Indirect Heating Equipment Minn. R Standards of Performance for Fossil-Fuel-Burning Direct Heating Equipment Minn. R Standards of Performance for Post-1969 Industrial Process Equipment Minn. R Standards of Performance for Stationary Internal Combustion Engines Minn. R Standards of Performance for New Polymeric Coating of Supporting Substrates Facilities Minn. R Stationary Reciprocating Internal Combustion Engines Table 5. Regulatory Overview of Units Affected by the Modification/Permit Amendment Subject Item* Applicable Regulations Rationale Technical Support Document, Permit Number: Page 4 of 11

5 COMG 6 HAP Limit COMG 5 VOC Limit Title I limit to avoid NESHAPs; limit to avoid Part 70 Title I limit to avoid PSD; limit to avoid Part 70 EQUI 32/EU 027 (Coater 7) CFR pt. 60, subp. VVV EQUI 57 (EU 042) Polysulfone Pilot Coater EQUI 56 (EU 041) Thin Film Pilot Coater; EQUI 57 (EU 042) Polysulfone Pilot Coater Line TREA 8 (Coater 7); TREA 9 (Polysulfone Pilot Coater Line) EQUI 56 (EU 041) Thin Film Pilot Coater; EQUI 57 (EU 042) Polysulfone Pilot Coater Line EQUI 54 (EU 039) Thin Film Pilot Dryer #1; EQUI 55 (EU 040) Thin Film Pilot Dryer #2 EQUI 54 (EU039) Thin Film Pilot Dryer #1; EQUI 55 (EU 040) Thin Film Pilot Dryer #2 Title I limit to avoid PSD; limit to avoid Part CFR pt (a) Minn. R National Emission Standards for Hazardous Air Pollutants and Part 70. Limit set on HAPs emissions from facility to avoid major source classification under 40 CFR Part 63 and under 40 CFR Part (existing limit, EQUI 57 incorporated into COMG 6 ). Prevention of Significant Deterioration (PSD) and Part 70. Limit set on VOCs emissions from facility to avoid major source classification under 40 CFR Part and 40 CFR Part (existing limit, EQUIs incorporated into COMG 5). New Source Performance Standards (NSPS) for Polymeric Coating of Supporting Substrates Facilities. This amendment added EPA s approved alternative means of emission limitation. Removing > 90% VOC used by absorption into rinse water baths to comply with the NSPS. Limit to avoid major source under PSD and Part 70. Removing > 90% VOC used by absorption into rinse water baths and limit on dimethyl formamide (DMF) application. New Source Performance Standards (NSPS) for Polymeric Coating of Supporting Substrates Facilities. Limits to keep VOC usage less than threshold in the rule so that no NSPS emissions limits apply. These coaters process less than 95 Mg/yr VOC materials, and thus are subject only to monitoring and recordkeeping requirements of NSPS. These limits are set as operation of the line cannot exceed 1500 hours per year. Monitoring and Recordkeeping requirements to ensure the water bath tanks are operating properly. 40 CFR pt (a) Hours of Operation: less than 1500 per year to remain less than 95 Mg/yr VOC materials for each pilot line. Minn. R Minn. R Standards of Performance for New Indirect Heating Equipment. Determination of applicable limit from rule: (constructed 2017, metro area, unit capacity 1 MMBtu/hr); (constructed 2017, metro area, unit capacity 3 MMBtu/hr); Natural gas only/ Fuel use operational requirements Technical Support Document, Permit Number: Page 5 of 11

6 Subject Item* Applicable Regulations Rationale COMG 6 HAP Limit COMG 5 VOC Limit Title I limit to avoid NESHAPs; limit to avoid Part 70 Title I limit to avoid PSD; limit to avoid Part 70 EQUI 32/EU 027 (Coater 7) CFR pt. 60, subp. VVV EQUI 57 (EU 042) Polysulfone Pilot Coater Title I limit to avoid PSD; limit to avoid Part 70 *Location of the requirement in the permit (e.g., EU, SV, GP, etc.). National Emission Standards for Hazardous Air Pollutants and Part 70. Limit set on HAPs emissions from facility to avoid major source classification under 40 CFR Part 63 and under 40 CFR Part (existing limit, EQUI 57 incorporated into COMG 6 ). Prevention of Significant Deterioration (PSD) and Part 70. Limit set on VOCs emissions from facility to avoid major source classification under 40 CFR Part and 40 CFR Part (existing limit, EQUIs incorporated into COMG 5). New Source Performance Standards (NSPS) for Polymeric Coating of Supporting Substrates Facilities. This amendment added EPA s approved alternative means of emission limitation. Removing > 90% VOC used by absorption into rinse water baths to comply with the NSPS. Limit to avoid major source under PSD and Part 70. Removing > 90% VOC used by absorption into rinse water baths and limit on dimethyl formamide (DMF) application. 3. Technical information 1. Emission calculations are attached to this document. All VOC and HAP emissions are tracked and subject to the emission caps. Insignificant activity emissions are tracked on a potential to emit basis and all significant activity emissions are tracked on an actual basis. The actual process emissions are calculated based on material usage, material content, and control efficiency (if applicable). Combustion emissions are calculated based on fuel consumption and AP-42 factors. 2. For Coater 7, the basis of the VOC requirements was from NSPS Subpart VVV. Because the emission limitation was approved by EPA, the basis of the operating parameters is 40 CFR Because Subpart VVV does not address HAPs, the basis for the HAPs was Title I: to avoid major source under Part The Coater 7 and Thin film Pilot Coater will use the following compliance demonstration equation: Control Efficiency Equation CE (w%) = X (Y wb + Y ww ) x 100 X X = Total weight of solvent in coating solution Y wb = Weight (concentration times volume) in water bath Y ww = Weight (concentration times volume) in wastewater Based on January 2017 performance tests, it was determined that the weight of uncaptured tank emissions from the uncovered tanks and emissions trapped in product would not be included in this equation due to the very low values. Based on the results of this test, it was also decided that no control credit would be given to any VOC/HAP vented to the Coater 7 scrubber. 4. The Thin Film Pilot Coater (EQUI 56/ EU 041) uses isopar (a VOC) as a solvent. Based on the Permitteee s historical data, the Permittee provided that a certain amount of isopar is removed as liquid from the process prior to the dryer in a disengagement step. 5. The percent DMF concentration is a variable used in determining the line speed for application rate. Technical Support Document, Permit Number: Page 6 of 11

7 6. Prior to either performance testing or sampling of the coating lines, the tanks have to be conditioned to reflect operating conditions. Conditioning of the tanks is defined as the coating operation shall be running a minimum of 24 hours with only minor interruptions. None of the minor interruptions should have ended within four hours of the sample collection. If the Coater 7 line has not operated during 7 continuous days, the tanks are unconditioned. There does not have to be a sampling for that time period. 7. For the Thin Film Pilot Coater, the max composition of the first VOC1 is 100% and the max composition of the second VOC2 is 10%. In the calculations, the Permittee used a worst case coating application rate that added both which is actually 110% of coating capacity. This overly conservative. In addition, any cleaning emissions would be fugitive and negligible. Cleaning is done by purging the coating solution with solvent to waste drum. It is closed pipe to drum setup. 3.1 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. The kind of monitoring found on similar units elsewhere. The table below summarizes the monitoring requirements associated with this amendment. Table 6. Monitoring Technical Support Document, Permit Number: Page 7 of 11

8 COMG 5 VOC limit & 6 HAP Limit Title I Conditions: To avoid major source and modification thresholds for Section and major source threshold for pt. 63; to avoid major source for Part 70 VOC < 90.0 tons per year, on a 12- month rolling sum basis Recordkeeping: Daily material usage records; On-going MSDS records; Monthly calculations of emissions. Material usage records are generated on a daily basis and 12-month rolling sum emission calculations are required by the 15 th of each month for the previous 12-month period. Calculations include the use of specific control efficiencies based on most current MPCA stack test data for existing thermal oxidizers (TREAs 1, 4, 5, and 6) and water bath tanks (TREA 8 and TREA 9). For coater lines: Coater 7, Coater 9, Coater 11, and Thin Film Pilot, credit can be taken for waste materials collected and shipped off-site (dispensed - waste = emissions). Combustion emissions are calculated with US EPA AP-42 factors for natural gas (ch. 1.4) or fuel oil (ch. 1.3). All insignificant activity emissions are on a potential to emit basis. HAPs total < 22.5 tons per year, on a 12-month rolling sum basis TREA 8 (Coater 7) HAPs single < 9.0 tons per year, on a 12-month rolling sum basis Destruction Efficiency > 90%, DMF application rate <= lb/day, water temperature >= 67 degrees F, water flow rate >= 6.5 gallons/min. (40 CFR (a); Title I Condition: To avoid major source threshold for pt. 63; Minn. R , subp. 4 and 5) Performance Testing; Weekly Sampling; Water Temperature Monitoring; Water Level Monitoring; Water Flow Rate Monitoring Recordkeeping Removing > 90% VOC used by absorption into rinse water baths. Performance testing to ensure control efficiency is met. Bath tank water temperature, water flow rate, and water quantity being continuously monitored and recorded, by sensors, to verify ongoing operating conditions are met. Sensor records will be maintained on-site. Weekly DMF sampling to verify DMF tank concentration is below 20%. Technical Support Document, Permit Number: Page 8 of 11

9 TREA 9 (Polysulfone Pilot Coater) TREA 8 (Coater 7); TREA 9 (Polysulfone Pilot Coater) EQUI 054, EQUI 055, EQUI 56 (EU 041) Thin Film Pilot Coater; EQUI 57 (EU 042) Polysulfone Pilot Coater Line EQUI 54 (EU039) Thin Film Pilot Dryer #1; EQUI 55 (EU 040) Thin Film Pilot Dryer #2 (Indirect Heating Equipment) Destruction Efficiency > 90% DMF application rate <= TBD lb/day, water temperature >= TBD degrees F, water flow rate >= TBD gallons/min. Title I Conditions: To avoid major source and modification thresholds for Section and major source threshold for pt. 63; to avoid major source for Part 70; Minn. R , subp. 4 and 5) Minn. R , subp. 4 and 5 Hours of Operation <= 1500 hours per year (Minn. R , subp. 4 and 5) PM: 0.4 lb/mmbtu; Opacity: 20 % with exceptions (Minn. R ) Performance Testing; Weekly Sampling; Continuous Water Temperature Monitoring; Continuous Water Level Monitoring; Continuous Water Flow Rate Monitoring Recordkeeping Recordkeeping: Periodic inspections and check if operating parameters are outside of range, corrective actions Recordkeeping: Hours of operation Recordkeeping: Monthly Fuel records *Location of the requirement in the permit (e.g., EU, SV, GP, etc.). Removing > 90% VOC used by absorption into rinse water baths. Performance testing to ensure control efficiency is met. Bath tank water temperature, water flow rate, and water quantity being continuously monitored and recorded, by sensors, to verify ongoing operating conditions are met. Sensor records will be maintained on-site. Weekly DMF sampling to verify DMF tank concentration is below 20%. The longest run of the 7 day period will be sampled. The Permittee must monitor operating requirements and conduct periodic inspections. If parameters are outside range or repairs are found to be needed, corrective actions shall be taken and recorded. The Permittee must maintain records of hours of operation for each new pilot coating line. All units use natural gas; therefore, the likelihood of violating either of the emission limits is very small. The Permittee can demonstrate that these units will continue to operate such that emissions are well below the emission limits by only burning natural gas. Since this is a permit condition, the semi-annual deviations report will document any deviations from this condition. Design based PTE for each unit, using AP-42, is compared to the rule limit of 0.4 lb/mmbtu. 3.2 Insignificant activities Technical Support Document, Permit Number: Page 9 of 11

10 GE Osmonics Inc has several operations which are classified as insignificant activities under the MPCA s permitting rules. These are listed in Appendix A to the permit. No new insignificant activities are included in this modification. 3.3 Permit organization In general, the permit meets the MPCA Tempo Guidance for ordering and grouping of requirements. One area where this permit deviates slightly from Tempo guidance is in the use of appendices. While appendices are fully enforceable parts of the permit, in general, any requirement that the MPCA thinks should be electronically tracked (e.g., limits, submittals, etc.), should be in the Requirements table in Tempo. The main reason is that the appendices are word processing sections and are not part of the electronic tracking system. Violation of the appendices can be enforced, but the computer system will not automatically generate the necessary enforcement notices or documents. Staff must generate these. This permit uses an appendix for specific calculation procedures from 40 CFR pt. 60, subp. VVV. These procedures are too complex to enter into Tempo and must go in an appendix. Another area that deviates from the guidance is in the use of groups where the requirements in the group apply to the members of the group individually. This was done in order to shorten the permit and where no testing or tracking specific to a unit is in the permit (thereby reducing the likelihood that there where will be further unit-specific requirements later). This is the case for the requirements at COMG 1 (Polypropylene processing lines), COMG 3 (Coater 9 Dryers), COMG 8 (Hot Water Boilers), COMG 10 (Subpart VVV- Affected units), COMG 9 (Non-VVV coaters), COMG 5 (VOC limit), COMG 6 (HAP limit), COMG 11 (Paint Booths), COMG 4 (Dryers), COMG 7 (Coater 11). 3.4 Comments received Public Notice Period: [start date] [end date] EPA Review Period: [start date] [end date] Comments were [not] received from the public during the public notice period. [The comments received did [not] include adverse comments on any applicable requirements of the permit. Changes to the permit were [not] made as a result of the comments. [Provide summary of changes]. The revised permit was sent to EPA for their 45-day review on [date]. Comments were [not] received from EPA during their review period. Changes to the permit were [not] made as a result of the comments. [Provide summary of changes.] 4. Permit fee assessment Attachment 4 to this TSD contains the MPCA s assessment of Application used to determine the permit application fee for this permit action as required by Minn. R The permit action includes two permit applications, both received after the effective date of the rule (July 1, 2009). 5. Conclusion Based on the information provided by GE Osmonics Inc the MPCA has reasonable assurance that the proposed operation of the emission facility, as described in the Air Emission Permit No and this TSD, will not cause or contribute to a violation of applicable federal regulations and Minnesota Rules. Technical Support Document, Permit Number: Page 10 of 11

11 Staff members on permit team: Bruce Braaten (permit writer) Kelsey Suddard (peer reviewer) Curt Stock (performance testing) Brent Rohne (compliance) Joey Handtmann (permit writing assistant) Laurie O Brien (administrative support) TEMPO360 Activities: Major Amendment (IND ), Major Amendment (IND ) Attachments: 1. PTE summary calculation spreadsheets 2. Requirements development report 3. Subject item inventory/details 4. Points calculator 5. EPA s Alternative Control Device Approval dated October 23, 2017 Technical Support Document, Permit Number: Page 11 of 11

12 GE Osmonics Thin Film Pilot Coater (EU 039, EU 040, EU 041) PUBLIC VERSION Page 1 of 2 VOC & HAP Summary VOC Total HAP Hexane Uncontrolled PTE Controlled PTE Uncontrolled PTE Controlled PTE Uncontrolled PTE Controlled PTE Stack Vent Unit (lb/hr) (tpy) (lb/hr) (tpy) (lb/hr) (tpy) (lb/hr) (tpy) (lb/hr) (tpy) (lb/hr) (tpy) Mixing (Phase 5) SV 042 EU 039 Dryer # EU 041 Coating Enclosure SV 043 EU 040 Dryer # Project Total Annual Emittance Based on 6 hr/day, 5 day/wk, 50 wk/yr. Natural Gas Combustion Emissions SV 042 EU 039 Dryer #1 3 MMBtu/hr SV 043 EU 040 Dryer #2 1 MMBtu/hr Total 4 MMBtu/hr EU 039 PTE Dryer Emission Rate (lb/hr) Dryer Limited Emission Rate (tpy) Dryer Emission Rate (lb/hr) Dryer Limited Emission Rate (tpy) Pollutant Emission Factor 2 (lb/mmscf) (lb/mmbtu) (hr/yr) NO x E 02 1, CO E 02 1, SO E 04 1, E E PM E 03 1, PM E 03 1, PM E 03 1, Total VOC E 03 1, Methylnaphthalene 2.40E E 08 1, E E E E Methylchloranthrene 1.80E E 09 1, E E E E ,12 Dimethylbenz(a)anthracene 1.60E E 08 1, E E E E Acenaphthene 1.80E E 09 1, E E E E Acenaphthylene 1.80E E 09 1, E E E E Anthracene 2.40E E 09 1, E E E E Arsenic 2.00E E 07 1, E E E E Benz(a)anthracene 1.80E E 09 1, E E E E Benzene 2.10E E 06 1, E E E E Benzo(a)pyrene 1.20E E 09 1, E E E E Benzo(b)fluoranthene 1.80E E 09 1, E E E E Benzo(g,h,i)perylene 1.20E E 09 1, E E E E Benzo(k)fluoranthene 1.80E E 09 1, E E E E Beryllium 1.20E E 08 1, E E E E Cadmium 1.10E E 06 1, E E E E Chromium 1.40E E 06 1, E E E E Chrysene 1.80E E 09 1, E E E E Cobalt 8.40E E 08 1, E E E E Dibenzo(a,h)anthracene 1.20E E 09 1, E E E E Dichlorobenzene 1.20E E 06 1, E E E E Fluoranthene 3.00E E 09 1, E E E E Fluorene 2.80E E 09 1, E E E E Formaldehyde 7.50E E 05 1, E E E E Hexane 1.80E E 03 1, E E E E Indeno(1,2,3 cd)pyrene 1.80E E 09 1, E E E E Lead 5.00E E 07 1, E E E E Total Combustion HAPs 5.6E E E E Emission factors for natural gas combustion are from Tables 1.4 1, 1.4 2, and of AP Emission factors converted from lb/mmbtu to lb/mmscf using an assumed higher heating value of 1,020 Btu/scf (per footnote "a" of Table 1.4 1). Greenhouse Gas Pollutant NG Combustion Emission Factor 4 (lb/mmbtu) Emission Factor 3 Total Max Capacity Operation Operation Dryer Emission Rate (lb/hr) Dryer Emission Rate (tpy) EU 040 PTE Dryer Emission Rate (lb/hr) Dryer Emission Rate (tpy) Total Dryer Limited PTE (MMBtu/hr) (hr/yr) Carbon Dioxide (CO 2 ) , Nitrous Oxide (N 2 O) 2.20E , E E E E E E 04 Methane (CH 4 ) 2.20E , E E E E E CO 2 equivalent (CO 2 e) Emission factors are from 40 CFR 98, Subpart C, Table C 1 for CO 2, and Table C 2 for CH 4 and N 2 O EU 039 EU 040 (lb/hr) (lb/hr) (tpy) Total Project PTE (tpy)

13 PUBLIC VERSION Coating Process Emissions Page 2 of 2 Max line speed: 30 m/min (confidential) Daily production time: 6hr Conversions Line Width: 0.30 m (confidential) Weekly production days: 5 day m2/ft2 Thickness: 100 g/m2 (confidential) Annual production weeks: 50 week 60 min/hr g/lb Max VOC1 usage 5 : g/min Mg/ton lb/hr Max VOC2 usage 5 : g/min 12.1 lb/hr Total VOC Usage 6 : ton/yr Mg/yr VOC emissions at Phase 5 mixing: 0% Per AP 42 Section , 10% loss from mixing equipment and 40% control for covered mixers: 10%*(1 40%)=6%, though assume mixing is already taken into account. RTO Control efficiency: 0% Not routed to RTO for control VOC1 Removed: 40% GEO provided a range of 40 60% Isopar removed as liquid from the process prior to the dryer in a disengagement step.(confidentia Phase 5 Mixing Uncontrolled VOC emission rate: 0.0 lb/hr Controlled VOC emission rate: 0.00 lb/hr 0.00 ton/yr 0.00 ton/yr Uncontrolled HAP emission rate: 0.0 lb/hr Controlled HAP emission rate: 0.0 lb/hr 0.00 ton/yr 0.00 ton/yr EU 041 Uncontrolled VOC1 emission rate: lb/hr Controlled VOC1 emission rate: lb/hr Uncontrolled VOC2 emission rate: lb/hr Controlled VOC2 emission rate: lb/hr Total Uncontrolled VOC emission rate: lb/hr Total Controlled VOC emission rate: lb/hr Annual VOC emission rate 5 : ton/yr Annual VOC emission rate: ton/yr 5 VOC represented by maximum solvent concentrations for all formulas 6 Annual VOC usage at aniticpated production will be below the NSPS Subpart VVV 95 Mg/yr threshold.

14 PUBLIC VERSION GE Osmonics Polysulfone Pilot Coater (EU 042) Page 1 of 1 Polysulfone Pilot Coater Information Pollutant Uncontrolled Uncontrolled Controlled Controlled Controlled V H Potential to Potential to Potential to Potential to Potential to O A Emit (PTE) Emit (PTE) Emit (PTE) Emit (PTE) Emit (PTE) Process Pollutant C P (lb/hr) (ton/yr) (lb/hr) (tpy) NOTES Cleaning Dimethylformamide x x Cleaning Total VOC x Web Coating Dimethylformamide x x Web Coating Total VOC x Water Bath Tanks (4) - Evaporation Dimethylformamide x x Water Bath Tanks (4) Total VOC x TOTAL VOC EMISSIONS TOTAL HAP EMISSIONS Max cleaning emission rate calculated according to parameters below, based on anitipated cleaning procedures: Parameter Unit NMP Cleaning Volume (max. volume) 5 gal DMF Specific Gravity 0.95 DMF in Cleaning Solution 100% Cleanings per Week 1.00 day Time Cleaning per Week 1.00 hr Weeks Cleaned per Year wk Reclaim 90% 2. Web Coating calculated according to the parameters below: Parameter Unit Conversions Line Speed (maximum): m/min (confidential) m 2 /ft 2 Line Width: 0.30 m (confidential) 60 min/hr Coating Thickness: g/m2 (confidential) g/lb Daily production time: 6hr Mg/ton Weekly production days: 5 day 8.34 lb/gal H 2 O Annual production weeks: 50 week DMF Content in Coating Solution 84% (confidential) DMF Usage (maximum): g/min DMF Usage (maximum): lb/hr Annual VOC (DMF) Usage 2 : ton/yr Mg/yr Water Bath Tank Removal Efficiency 1 : 90% Total DMF Emissions: lb/hr Annual DMF Emissions: ton/yr 1 Efficiency based on 2010 performance testing on Coater 7 showing 95% removal efficiency. 2 Annual VOC usage at aniticpated production will be below 95 Mg/yr threshold. 3. Water Bath Tank emissions were calculated from the Equipment & Operating conditions found in the Master Inventory: The coated web passes through four water tanks to rinse VOCs: Water Bath Tank Description Tank Volume Max. Temp. Quench Tank 150 gallons 120 F Rinse Zone 1 60 gallons 100 F Rinse Zone 2 60 gallons 200 F Rinse Zone 3 60 gallons 200 F The maximum DMF concentration in the all rinse tanks is set at 13%, conservative estimate. Rinse 3 Total Total 2 Water Bath Tank Description lb/hr Hours tpy Mg/yr Quench 1.17E E E-03 Rinse Zone E E E-03 Rinse Zone E E E-03 Rinse Zone E E E-03 Total 2.56E E E-02 3 Maximum DMF concentration establish from muliple sample results.

15 SubjectItem TFAC1 ( ) 1 ThispermitestablisheslimitsonthefacilitytokeepitaminorsourceunderNewSourceReviewandNESHAPS. ThePermiteecannotmakeanychangeatthesourcethatwouldmakethesourceamajorsourceunderNew SourceReviewandNESHAPSuntilapermitamendmenthasbeenissued.Thisincludeschangesthatmight otherwisequalifyasinsignificantmodificationsandminorormoderateamendments. 2 ThePermiteeisauthorizedtoinstalandoperateEQUI27,EQUI28,EQUI29,EQUI30,andEQUI31atany timewithin5yearsofissuanceofairemissionspermitno theunitsshalmeetalthe requirementsofthispermit(e.g.comg 7). VolatileOrganicCompounds:lessthanorequalto95.0tons/yearusing12-monthRolingSum tobecalculated bythe15thdayofeachmonthfortheprevious12-monthperiodasdescribedlaterinthispermit.voccontents foreachvoc-containingmaterialshalbedeterminedasdescribedunderthematerialcontentrequirement below.thecalculationofvocsusedmaytakeintoaccountrecovered/recycledvocsasdescribedunderthe WasteCreditrequirementbelow. 3 HAPs-Total:lessthanorequalto24.0tons/yearusing12-monthRolingSum tobecalculatedbythe30thday ofeachmonthfortheprevious12-monthperiod.hapcontentsforeachhap-containingmaterialshalbe determinedasdescribedunderthematerialcontentrequirementbelow.thecalculationofhapsusedmay takeintoaccountrecovered/recycledhapsasdescribedunderthewastecreditrequirementbelow. ThePermiteeisauthorizedtoinstalandoperateEQUI54,EQUI55,EQUI56,andEQUI57atanytimewithin 5yearsofissuanceofAirEmissionsPermitNo Theunitsshalmeetaltherequirementsofthis permit. 4 HAP-Single:lessthanorequalto9.0tons/yearusing12-monthRolingSum tobecalculatedbythe30thdayof eachmonthfortheprevious12-monthperiod.individualhapcontentsforeachhap-containingmaterialshal bedeterminedasdescribedunderthematerialcontentrequirementbelow.thecalculationofhapsusedmay takeintoaccountrecovered/recycledhapsasdescribedunderthewastecreditrequirementbelow. PermitAppendices:ThispermitcontainsappendicesaslistedinthepermitTableofContents.ThePermitee shalcomplywithalrequirementscontainedin: AppendixA-InsignificantActivitiesandApplicableRequirements; AppendixB-EquationsusedforPermitCap; AppendixC-Maximum MaterialContentsandApplicationRates; AppendixD-EquationsforCarbonMonoxidePerformanceTesting;and AppendixE-EquationforNSPSSubpartVVV. Minn.R ,TitleICondition: Avoidmajorsourceunder40CFR 52.21,TitleICondition:Avoidmajor sourceunder40cfr63.2 VolatileOrganicCompounds:lessthan orequalto95.0tons/yearusing 12-monthRolingSum tobecalculated bythe15thdayofeachmonthforthe previous12-monthperiodasdescribed laterinthispermit.voccontentsfor eachvoc-containingmaterialshalbe determinedasdescribedunderthe MaterialContentrequirementbelow. ThecalculationofVOCsusedmaytake intoaccountrecovered/recycledvocs. Minn.R ,subp.2 Minn.R ,2 HAPs-Total:lessthanorequalto24.0 tons/yearusing12-monthrolingsum tobecalculatedbythe30thdayof eachmonthfortheprevious12-month period.hapcontentsforeach HAP-containingmaterialshalbe determinedasdescribedunderthe MaterialContentrequirementbelow. ThecalculationofHAPsusedmaytake intoaccountrecovered/recycledhaps asdescribedunderthewastecreditr. Minn.R ,subp.2 HAP-Single:lessthanorequalto9.0 tons/yearusing12-monthrolingsum tobecalculatedbythe30thdayof eachmonthfortheprevious12-month period.individualhapcontentsfor eachhap-containingmaterialshalbe determinedasdescribedunderthe MaterialContentrequirementbelow. ThecalculationofHAPsusedmaytake intoaccountrecovered/recycledhaps asdescribedunderthewastecreditr. TSDRequirement(Printversion)

16 SubjectItem TFAC1 ( ) 4 5 PERMITSHIELD:SubjecttothelimitationsinMinn.R ,compliancewiththeconditionsofthispermit shalbedeemedcompliancewiththespecificprovisionoftheapplicablerequirementidentifiedinthepermitas thebasisofeachcondition.subjecttothelimitationsofminn.r and ,subp.2, notwithstandingtheconditionsofthispermitspecifyingcompliancepracticesforapplicablerequirements,any person(includingthepermitee)mayalsouseothercredibleevidencetoestablishcomplianceor noncompliancewithapplicablerequirements. ThispermitshalnotalterorafecttheliabilityofthePermiteeforanyviolationofapplicablerequirementsprior tooratthetimeofpermitissuance. Pre-authorizedChanges:ThePermiteemayreplacelistedemissionunits,moveemissionunits,oraddnew emissionunitssimilarbutnotlimitedtothefolowing:membranecoaters,coatingmixpots,boilers,sprayguns, sprayingandcoatingbooths,powderpaintingbooths,washtanks,cleaningofsurfaces,weldingbooths,rinse tanks,diptanks,spaceheatingunits,dryers,emergencygenerators,researchunits,emissioncontrolunitsand make-upairunitsaswelascoating,reagents,andothersolventandmaterialchangesprovidedvocandhap emissionsaretrackedandcalculatedasrequiredbythispermit.alchangesmustmeettherequirementsas listedinthissection. Iftheproposedchangetriggersanapplicablerequirementthatisnotcontainedinthispermit,thechangemust gothroughtheappropriateprocedureinminn.r.ch Circumvention:Donotinstaloruseadeviceormeansthatconcealsordilutesemissions,whichwould otherwiseviolateafederalorstateairpolutioncontrolrule,withoutreducingthetotalamountofpolutant emited. 8 AirPolutionControlEquipment:Operatealpolutioncontrolequipmentwheneverthecorespondingprocess equipmentandemissionunitsareoperated. 9 OperationandMaintenancePlan:Retainatthestationarysourceanoperationandmaintenanceplanforalair polutioncontrolequipment.ataminimum,theo&m planshalidentifyalairpolutioncontrolequipmentand controlpracticesandshalincludeapreventativemaintenanceprogram fortheequipmentandpractices,a descriptionof(theminimum butnotnecessarilytheonly)corectiveactionstobetakentorestoretheequipment andpracticestoproperoperationtomeetapplicablepermitconditions,adescriptionoftheemployeetraining program forproperoperationandmaintenanceofthecontrolequipmentandpractices,andtherecordskeptto demonstrateplanimplementation. ThePermiteeshalcomplywithNationalPrimaryandSecondaryAmbientAirQualityStandards,40CFRpt.50, andtheminnesotaambientairqualitystandards,minn.r to complianceshalbe demonstrateduponwritenrequestbythempca. 10 Circumvention:Donotinstaloruseadeviceormeansthatconcealsordilutesemissions,whichwould otherwiseviolateafederalorstateairpolutioncontrolrule,withoutreducingthetotalamountofpolutant emited. Pre-authorizedChanges:The Permiteemayreplacelistedemission units,moveemissionunits,oraddnew emissionunitssimilarbutnotlimitedto thefolowing:membranecoaters, coatingmixpots,boilers,sprayguns, sprayingandcoatingbooths,powder paintingbooths,washtanks,cleaning ofsurfaces,weldingbooths,rinse tanks,diptanks,spaceheatingunits, dryers,emergencygenerators,resear. Minn.R ,(A)(2) Minn.R Minn.R ,subp.2,Minn.R ,subp.16(J) Minn.R ,subp.14,Minn.R ,subp.16(J) Minn.R ,subp.7(A),7(L),& 7(M),Minn.R ,subp.4, Minn.R ,subps.1-2,Minn. Stat ,subd.4a,Minn.Stat ,subd.9 Minn.R TSDRequirement(Printversion)

17 TSDRequirement(Printversion) SubjectItem TFAC1 ( ) 10 Minn.R ,subp.4 OperationChanges:Inanyshutdown,breakdown,ordeviationthePermiteeshalimmediatelytakealpractical stepstomodifyoperationstoreducetheemissionofanyregulatedairpolutant.thecommissionermayrequire feasibleandpracticalmodificationsintheoperationtoreduceemissionsofairpolutants.noemissionsunits thathaveanunreasonableshutdownorbreakdownfrequencyofprocessorcontrolequipmentshalbe permitedtooperate. Minn.R ,subp.16(J),Minn. R ,subp.2 11 AirPolutionControlEquipment:Operatealpolutioncontrolequipmentwheneverthecorespondingprocess equipmentandemissionunitsareoperated. Minn.R FugitiveEmissions:Donotcauseorpermitthehandling,use,transporting, orstorageofanymaterialinamannerwhichmayalowavoidableamounts ofparticulatematertobecomeairborne.complywithalotherrequirements listedinminn.r Minn.R Noise:ThePermiteeshalcomplywiththenoisestandardssetforthinMinn.R to atal timesduringtheoperationofanyemissionunits.thisisastateonlyrequirementandisnotenforceablebythe EPAAdministrator orcitizensunderthecleanairact. Minn.R ,subp.14,Minn.R ,subp.16(J) OperationandMaintenancePlan:Retainatthestationarysourceanoperationandmaintenanceplanforalair polutioncontrolequipment.ataminimum,theo &M planshalidentifyalairpolutioncontrolequipmentand controlpracticesandshalincludeapreventativemaintenanceprogram fortheequipmentandpractices,a descriptionof(theminimum butnotnecessarilytheonly)corectiveactionstobetakentorestoretheequipment andpracticestoproperoperationtomeetapplicablepermitconditions,adescriptionoftheemployeetraining program forproperoperationandmaintenanceofthecontrolequipmentandpractices,andtherecordskeptto demonstrateplanimplementation. Minn.R ,subp.9(A) 13 Inspections:ThePermiteeshalcomplywiththeinspectionproceduresandrequirementsasfoundinMinn.R ,subp.9(A). Minn.R ,subp.4 OperationChanges:Inanyshutdown,breakdown,ordeviationthePermiteeshalimmediatelytakealpractical stepstomodifyoperationstoreducetheemissionofanyregulatedairpolutant.thecommissionermayrequire feasibleandpracticalmodificationsintheoperationtoreduceemissionsofairpolutants.noemissionsunits thathaveanunreasonableshutdownorbreakdownfrequencyofprocessorcontrolequipmentshalbe permitedtooperate.

18 TSDRequirement(Printversion) SubjectItem ID Seq.# 13 Requirement TFAC1 ( ) Minn.R FugitiveEmissions:Donotcauseorpermitthehandling,use,transporting,orstorageofanymaterialina mannerwhichmayalowavoidableamountsofparticulatematertobecomeairborne.complywithalother requirementslistedinminn.r Minn.R ,subp.16 ThePermiteeshalcomplywiththeGeneralConditionslistedinMinn.R ,subp.16. Minn.R Noise:ThePermiteeshalcomplywiththenoisestandardssetforthinMinn.R to atal timesduringtheoperationofanyemissionunits.thisisastateonlyrequirementandisnotenforceablebythe EPAAdministratororcitizensundertheCleanAirAct. Minn.R ,subp.9(A) 16 Inspections:ThePermiteeshalcomplywiththeinspectionproceduresandrequirementsasfoundinMinn.R ,subp.9(A). PerformanceTesting:Conductalperformancetestsinaccordancewith Minn.R.ch.7017unlessotherwisenotedinTableA. PerformanceTesting:Conductal performancetestsinaccordancewith Minn.R.ch.7017unlessotherwise notedintablea. Minn.R ,subp ThePermiteeshalcomplywiththeGeneralConditionslistedinMinn.R ,subp.16. PerformanceTestNotificationsandSubmitals: PerformanceTestsaredueasoutlinedinTableAofthepermit. SeeTableBforadditionaltestingrequirements. Minn.R ,Minn.R ,Minn.R ,subp. 1,Minn.R ,subp.2 PerformanceTestNotification(writen):due30daysbeforeeachPerformanceTest PerformanceTestPlan:due30daysbeforeeachPerformanceTest PerformanceTestPre-testMeeting:due7daysbeforeeachPerformanceTest PerformanceTestReport:due45daysaftereachPerformanceTest PerformanceTestReport-CDCopy:due105daysaftereachPerformanceTest.

19 SubjectItem TFAC1 ( ) Limitssetasaresultofaperformancetest(conductedbeforeorafterpermitissuance)applyuntilsuperseded asstatedinthempca'snoticeofcomplianceletergrantingpreliminaryapproval.preliminaryapprovalis basedonformal reviewofasubsequentperformancetestonthesameunitasspecifiedby Minn.R ,subp.3.Thelimitisfinaluponissuanceofapermit amendmentincorporatingthechange. PerformanceTesting:ConductalperformancetestsinaccordancewithMinn.R.ch.7017unlessotherwise notedinthispermit. 19 PerformanceTestNotificationsandSubmitals: PerformanceTestNotificationandPlan:due30daysbeforeeachPerformanceTest PerformanceTestPre-testMeeting:due7daysbeforeeachPerformanceTest PerformanceTestReport:due45daysaftereachPerformanceTest TheNotification,TestPlan,andTestReportmustbesubmitedinaformatspecifiedbythecommissioner. 20 Limitssetasaresultofaperformancetest(conductedbeforeorafterpermitissuance)applyuntilsuperseded asstatedinthempca'snoticeofcomplianceletergrantingpreliminaryapproval.preliminaryapprovalisbased onformalreviewofasubsequentperformancetestonthesameunitasspecifiedbyminn.r ,subp. 3.Thelimitisfinaluponissuanceofapermitamendmentincorporatingthechange. MonitoringEquipmentCalibration:Annualycalibratealrequiredmonitoringequipment. 21 MaterialContent.VOC,HAPs,andSolids(PM,PM<10microns,andPM<2.5microns)contentsincoating materialsshalbedeterminedbythesafetydatasheet(sds)providedbythesupplierforeachmaterialused.if amaterialcontentrangeisgivenonthesds,thehighestnumberintherangeshalbeusedinalcompliance calculations.ifinformationisprovidedintheregulatorysectionofthesds,thehighestnumberintherangeof thatsectionmaybeused. OtheralternativemethodsapprovedbytheMPCAmaybeusedtodeterminetheVOC,HAPs,andsolids contents.thecommissionerreservestherighttorequirethepermiteetodeterminethevoc,hap,andsolids contentsofanymaterial,accordingtoepaorastm referencemethods.ifanepaorastm referencemethod isusedformaterialcontentdetermination,thedataobtainedshalsupersedethesds. MonitoringEquipmentCalibration-ThePermiteeshaleither: 1.Calibrateorreplacerequiredmonitoringequipmentevery12months;or 2.Calibrateatthefrequencystatedinthemanufacturer'sspecifications. Foreachmonitor,thePermiteeshalmaintainarecordofalcalibrations,includingthedateconducted,andany corectiveactionthatresulted.thepermiteeshalincludethecalibrationfrequencies,procedures,and manufacturer'sspecifications(ifapplicable)intheoperationsandmaintenanceplan.anyrequirementsapplying tocontinuousemissionmonitorsarelistedseparatelyinthispermit. Minn.R.ch.7017 Minn.R ,subp.3 Minn.R ,Minn.R ,subps.1-4,Minn.R ,subps.1-2 MonitoringEquipmentCalibration: Annualycalibratealrequired monitoringequipment. Minn.R ,subp.3 Minn.R ,subps.4-5 Minn.R ,subp.4(D) TSDRequirement(Printversion)

20 TSDRequirement(Printversion) SubjectItem TFAC1 ( ) 21 Minn.R ,subp.4(D) OperationofMonitoringEquipment:UnlessotherwisenotedinTablesAand/orB,monitoringaprocessor controlequipmentconnectedtothatprocessisnotnecessaryduringperiodswhentheprocessisshutdown,or duringchecksofthemonitoringsystems,suchascalibrationchecksandzeroandspanadjustments. Ifmonitoringrecordsarerequired,theyshouldreflectanysuchperiodsofprocessshutdownorchecksofthe monitoringsystem. Minn.R ,subp.4(D) 22 OperationofMonitoringEquipment:Unlessnotedelsewhereinthispermit,monitoringaprocessorcontrol equipmentconnectedtothatprocessisnotnecessaryduringperiodswhentheprocessisshutdown,orduring checksofthemonitoringsystems,suchascalibrationchecksandzeroandspanadjustments.ifmonitoring recordsarerequired,theyshouldreflectanysuchperiodsofprocessshutdownorchecksofthemonitoring system. Recordkeeping:Retainalrecordsatthestationarysourceforaperiodoffive(5)yearsfrom thedateof monitoring,sample,measurement,orreport.records whichmustberetainedatthislocationincludealcalibrationandmaintenancerecords,aloriginalrecordingsfor continuousmonitoringinstrumentation,and copiesofalreportsrequiredbythepermit.recordsmustconform tothe requirementslistedinminn.r ,subp.5(a). Minn.R ,subp.5(C) Minn.R ,subp.5(B) 23 Recordkeeping:Maintainrecordsdescribinganyinsignificantmodifications(asrequiredbyMinn.R , subp.3)orchangescontraveningpermitterms (asrequiredbyminn.r ,subp.2),includingrecordsoftheemissionsresultingfrom thosechanges. 24 DailyRecordkeeping:Oneachdayofoperation,thePermiteeshalcalculate,record,andmaintainthetotal quantityofalcoatingsandothervoc,solids,andhapcontainingmaterialsusedatthefacility.thisshalbe basedonwritenusagelogs,gaugeorflowmeterreadings,ordeliveryrecords. DailyRecordkeeping:Oneachdayof operation,thepermiteeshalcalculate, record,andmaintainthetotalquantity ofalcoatingsandothervoc,solids, andhapcontainingmaterialsusedat thefacility.thisshalbebasedon writenusagelogs,gaugeorflowmeter readings,ordeliveryrecords MonthlyRecordkeeping -VOCEmissions. Bythe30thofthemonth,thePermiteeshalcalculateandrecordthefolowing: 1.ThetotalusageofVOC-containingmaterialsforthepreviouscalendarmonth usingthedailyusagerecords.thisrecordshalalsoincludethevocand solidscontentsofeachmaterialasdeterminedbythematerialcontent requirementofthispermit. 2.TheVOCemissionsforthepreviousmonthusingEquation1ofAppendixB. 3.The12-monthrolingsum VOCemissionsfortheprevious12-monthperiod bysummingthemonthlyvocemissionsdatafortheprevious12months. MonthlyRecordkeeping -HAPEmissions. Bythe30thofthemonth,thePermiteeshalcalculateandrecordthefolowing usingtheformulasspecifiedinthispermit: 1.ThetotalHAP-containingmaterialsusedinthepreviouscalendarmonthusing thedailyusagerecords.thisrecordshalalsoincludetheindividualandtotal HAPcontentsofeachHAP-containingmaterialusedinthepreviousmonth, asdeterminedbythematerialcontentrequirementofthispermit. 2.ThetotalandindividualHAPemissionsforthepreviousmonthusing Equation2ofAppendixB. 3.The12-monthrolingsum totalandindividualhapemissionsfortheprevious 12-monthperiodbysummingthemonthlyemissionsdatafortheprevious12. MonthlyRecordkeeping -VOC Emissions. Bythe30thofthemonth,thePermitee shalcalculateandrecordthefolowing: 1.ThetotalusageofVOC-containing materialsforthepreviouscalendar month usingthedailyusagerecords.this recordshalalsoincludethevocand solidscontentsofeachmaterialas determinedbythematerialcontent. MonthlyRecordkeeping -HAP Emissions. Bythe30thofthemonth,thePermitee shalcalculateandrecordthefolowing usingtheformulasspecifiedinthis permit: 1.ThetotalHAP-containingmaterials usedinthepreviouscalendarmonth using thedailyusagerecords.thisrecord shalalsoincludetheindividualandtot.