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HomeMy WebLinkAboutAQ_F_0200005_20210602_CMPL_InspRpt NORTH CAROLINA DIVISION OF Mooresville Regional Office AIR QUALITY Mitchell Gold Company NC Facility ID 0200005 Inspection Report County/FIPS:Alexander/003 Date: 06/02/2021 Facility Data Permit Data Mitchell Gold Company Permit 02815/R14 375 Sharpe Lane Issued 9/24/2014 Hiddenite,NC 28636 Expires 8/31/2022 Lat: 35d 54.0708m Long: 8ld 5.0058m Class/Status Small SIC: 2512/Upholstered Household Furniture Permit Status Active NAILS: 337121 /Upholstered Household Furniture Manufacturing Current Permit Application(s)None Contact Data Program Applicability Facility Contact Authorized Contact Technical Contact SIP Scott Watson Scott Watson Scott Watson MACT Part 63: Subpart JJ,Subpart ZZZZ Finishing Supervisor Finishing Supervisor Finishing Supervisor NSPS: Subpart Dc (828)632-9200 (828)632-9200 (828)632-9200 Compliance Data Comments: Inspection Date 06/02/2021 Inspector's Name Sandra Sherer Inspector's Signature: Sandw ShewA Operating Status Operating Compliance Status Compliance-inspection Action Code FCE Date of Signature: 61312C21 Inspection Result Compliance Total Actual emissions in TONSIYEAR: TSP S02 NOX VOC CO PM10 *HAP 2013 0.1900 --- 0.3500 25.33 0.2800 0.1900 3152.38 2008 0.1700 --- 0.3400 29.17 0.2700 0.1700 2340.71 *Highest HAP Emitted inpounds) Five Year Violation History:None Date Letter Type Rule Violated Violation Resolution Date Performed Stack Tests since last FCE:None Date Test Results Test Method(s) Source(s)Tested Mitchell Gold Company June 2,2021 Page 2 Type Action: X Full Compliance _Partial Compliance _Complaint Other: Evaluation Evaluation/Reinspection Investigation Data Date submitted for initial review: 6/3/2021 _IBEAM WARNING/OB,NOD,NOV,NRE Tracking: X IBEAM Document X IBEAM Inspection,list date inspected X IBEAM LAT/LONG,Facility Locked X IBEAM Inspection,list date draft is submitted X IBEAM LAT/LONG,Coordinates checked X IBEAM Inspection,pollutants/programs checked _IBEAM Complaint X IBEAM Planning,Next Inspection Date: 6/l/2023 Directions: Take I-77 north to I-40 West. Take exit 148 and go right. Make a right onto HWY 90 North. Once in Hiddenite,take a right onto Sulphur Springs Road. Cross the railroad tracks and take an immediate right onto Sharpe Road. The facility is on the left past the Hickory Springs plant. Safety Equipment:The facility does not require any PPE for individuals that are not actively spraying. However, it is recommended that you wear safety shoes and bring safety glasses anyway. Safety Issues: No issues noted. COVID-19 Information: I talked with Mr. Scott Watson,Finishing Supervisor,by phone prior to the on-site inspection,who informed me the facility requires employees and visitors to have their temperature checked prior to entering the plant due to the COVID-19 pandemic. Wearing a mask is optional at the facility and is left up to each individual's discretion. The morning of the inspection,I conducted a routine inspection during the site visit and practiced social distancing. Lat/Lonz Coordinates: A review of the facility's coordinates on "Maps of DAQ Regulated Facilities" indicates the facility latitude and longitude coordinates are accurate. No changes to the latitude and longitude coordinates of this facility in IBEAM are needed. Latitude and longitude coordinates of this facility are locked in IBEAM. Email Contacts: I confirmed the e-mail contacts with Mr. Watson.No changes are required in IBEAM. I. The purpose of this site visit was to conduct a routine air quality inspection. This facility manufactures finished wood furniture and is subject to 40 CFR 63, Subpart JJ. Mr. Scott Watson, Finishing Supervisor,accompanied me during this inspection.This facility works one shift Monday through Thursday with variable work on Friday and employs roughly 70 people. 2. Facility Contact Information: The contact information in IBEAM was verified and no changes are needed. 3. Compliance history file review: No violations have been issued to this facility in the last five years. Mitchell Gold Company June 2,2021 Page 3 4. Observations of permitted air emission sources and control devices: a. Emission Emission Source Source ID Description ES-B 1 No. 2 fuel oil/natural gas-fired boiler(25.2 million (NSPS) Btu per hour maximum heat input) Observed. The boiler was taken out of service in the fall of 2019 and is no longer hooked up to any fuel sources. The boiler was replaced with three air make-up units and four heating and air units that run on natural gas. b. Source In Coating Gun Spray Operator/ Lb VHAP/ ID Use. Applied Type Product applied lb Solids ES- yes stain HVLP Marlie Turovich/ 0.0 SB 1 S75N2091 L5 ES- Erin Mathews/ 0.3 SB2 Yes sealer HVLP L42C7701 ES- Nick Griggs/ 0.03 SB3 yes glaze HVLP G37NO1534 ES- No N/A HVLP N/A N/A SB4 ES- No N/A HVLP N/A N/A SB5 ES- No N/A HVLP N/A N/A ES- No N/A N/A N/A N/A SB7 ES- Lola Jenkins/ 0.3 SB8 Yes lacquer HVLP L42C00008 ES- HVLP Greg Lackey/ 0.23 S139 Yes enamel Cup E28CW00167 guns Source ID In Use? Application Comments Glue is purchased in 275 gallon totes ES-GO Yes PVA based gluing and transferred to small bottles and operation buckets. It is used for dowels, etc throughout facility. Mitchell Gold Company June 2,2021 Page 4 Source ID In Use? Application Comments The facility uses acetone for washoff. ES-WT1 Both tanks were observed with lids and ES- No washoff tank closed during the inspection. Only one WT2 is ever used for washoff and the other one is used for storage. ES-DO1 No steam-heated drying oven Both ovens have been taken out of service and should be removed from ES-D02 No steam-heated drying oven permit during the next permit revision. Observed. All booths have dry filters and all filters were in place and appeared to be properly maintained.All the booths are online,except for EB-7,which is not being used at this time. The clear finishes are pumped from the pump room while all others are in pressure pots at the booth where they are used. No open containers were noted in the finishing room or pump room areas. 5. Observations of insignificant air emission sources and control devices listed on the current permit: a. IES-1 - diesel-fired pump (220 hp) for the fire suppression system (subject to NESHAP, Subpart ZZZZ) Observed. The Cummins generator is operated approximately 30 min/week to ensure it is in good working order. The engine is considered an existing engine and therefore is subject to NESHAP, Subpart ZZZZ. The generator has a non-resettable meter,which read 441.51 hours at the time of the inspection. It is a Model DC-23 with a Serial No. 6721. 6. Observations of air emission sources and control devices not listed on the current permit: a. The facility has two cyclones on the roof that can be seen from the parking lot. There is also a cyclone and a bagfilter located toward the back of the roof that are not as evident from the parking lot. None of them are used and the ductwork going to them has been removed. The facility does not do any woodworking that vents to the outside atmosphere. b. The facility has a 600 gallon gasoline tank that was previously added to the yellowsheet to be included as an insignificant air emission source during the next permit revision. C. The facility has replaced the boiler with three air make-up units and four heating and air units that run on natural gas. 7. Compliance with specific permit conditions and limitations: a. Condition A.2. requires the facility to submit the permit renewal application including emission inventory at least 90 days prior to the expiration date of the air permit. Observed. A new air permit was issued on September 30, 2014 and is due to expire on August 31, 2022. 1 spoke to Mr. Watson about the permit renewal process during the inspection. Compliance is indicated. Mitchell Gold Company June 2,2021 Page 5 b. Condition A.3. — 15A NCAC 2D .0503 "Particulates from Fuel Burning Indirect Heat Exchangers". Particulate matter emissions from the boiler(ID No.ES-B 1)shall not exceed 0.472 pounds per million Btu. Observed. The boiler is no longer in service and was replaced with three air make-up units and four heating and air units that run on natural gas. Therefore, the facility remains well below the 0.472 pounds per million Btu limit. C. Condition AA — 15A NCAC 2D .0512 "Particulates from Wood Products Finishing Plants". Provide adequate ductwork and properly designed collectors to control woodworking and finishing particulates. Observed. No particulate emissions were observed from the spray booths and the filters appear to be properly maintained. Compliance with this stipulation is indicated. d. Condition A.5. - 15A NCAC 2D .0516 "Sulfur Dioxide Emissions from Combustion Sources," sulfur dioxide emissions from boiler(ID No.ES-B 1)shall not exceed 2.3 pounds per million Btu heat input. Observed. The facility only uses natural gas at the facility,therefore remains well below the 2.3 pounds per million Btu limit. e. Condition AA and A.7. - 15A NCAC 2D .0521, "Control of Visible Emissions". The visible emissions from spray booths (ID Nos. ES-SB5, ES-SB8, ES-S139), drying ovens (ID Nos. ES-D02 and ES-D01), boiler (ID No ES-B1), washoff tank (ID No. ES-WT2) and gluing operation(ID No. ES-GO) are limited to no more than 20 percent opacity. The visible emissions from spray booths(ID Nos.ES-SB 1,ES-SB2,ES-SB3,ES-SB4,ES- S136 and ES-SB7), and washoff tank (ID No. ES-WTI) are limited to no more than 40 percent opacity. Observed. No visible emissions were observed at the facility. Compliance with this stipulation is indicated. f. Condition A.8. - 15A NCAC 2D .0524, "New Source Performance Standards" (NSPS) as promulgated in 40 CFR 60, Subpart Dc. Sulfur content of the distillate oil combusted in an affected source shall not exceed 0.5 percent by weight. The company must demonstrate compliance with NSPS Subpart Dc by reporting semi-annually the sulfur content of the fuel combusted during the reporting period. This may be done by submitting fuel supplier certifications. In addition, records of the amount of each fuel combusted must be maintained on site for each month's fuel usage. Observed. The facility stopped using the boiler in the fall of 2019. The last reports were received on July 20, 2020 and January 12, 2021, which contained the last fuel oil receipt that showed fuel oil delivered did not exceed 0.5 percent by w\eight. No fuel oil or natural gas was burned in the boiler since the fall of 2019. Compliance with this stipulation is indicated. Mitchell Gold Company June 2,2021 Page 6 g. Condition A.9. 15A NCAC 2D .0535. The Permittee of a source of excess emissions that last for more than four hours and that results from a malfunction, a breakdown of process or control equipment or any other abnormal conditions, shall notify the Director or his designee of any such occurrence by 9:00 a.m. Eastern time of the Division's next business day of becoming aware of the occurrence. Observed. Based on a records review and conversation with Mr. Watson, no excess - emissions have occurred at the facility in several years. Compliance with this stipulation is indicated. h. Condition A.10. "Fugitive Dust Control Requirement" as required by 15A NCAC 2D .0540 "Particulates from Fugitive Dust Emissions Sources" states that the Permittee shall not cause or allow fugitive dust emissions to cause or contribute to substantive complaints or excess visible emissions beyond the property boundary. Observed. MRO DAQ has not received any fugitive dust emissions complaints regarding this facility. During the inspection, I observed no fugitive dust or visible emissions from this facility. Compliance with this stipulation is indicated. i. Condition A.11. The wood furniture manufacturing operations spray booths(ID Nos. ES- SB1 through ES-SB9), drying ovens (ID Nos. ES-D01 and ES-D02), washoff tanks (ID No. ES-WTI and ES-WT2), and gluing operation(ID No. ES-GO)are subject to the work practice and emission limit requirements of the Wood Furniture MACT,NESHAP Subpart JJ as promulgated in the Federal Register,40 CFR Part 63 Subpart JJ,December 7, 1995. Below is a synopsis of the compliance status with the Wood Furniture NESHAP i. 40 CFR 63.802 "Emission limits" and 40 CFR 63.804 "Compliance Procedures and monitoring requirements" The facility is subject to the following emission limits for existing sources: SUMMARY OF EMISSION LIMITS Emission Point Existing Source Finishing Operations (a)Achieve a weighted average VHAP content across all coatings 1.0a (maximum kg VHAP/kg solids [lb VHAP/lb solids],as applied) OR (b)Use compliant finishing materials (maximum kg VHAP/kg solids [lb VHAP/lb solids], as applied): -stains 1.0a -washcoats 1.0ab -sealers 1.0a -topcoats 1.0. Mitchell Gold Company June 2,2021 Page 7 Emission Point Existing Source -basecoats 1.0ab -enamels 1.0ab -thinners(maximum%HAP allowable) 10.0 OR (c) Use a combination of(a) and(b) 1.0 Cleaning Operations Strippable spray booth material 0.8 (maximum VOC content,kg VOC/kg solids [lb VOC/lb solids]) Formaldehydequirements Effective November 21,2014 (a) Achieve total free formaldehyde emissions across all finishing 400 operations, lb per rolling 12 month period, as applied OR (b) Use coatings only if they are low-formaldehyde coatings and 1.0° contact adhesives a The limits refer to the VHAP content of the coating, as applied. b Washcoats,basecoats,and enamels must comply with the limits presented in this table if they are purchased premade,that is,if they are not formulated on-site by thinning other finishing materials. If they are formulated on-site, they must be formulated using compliant finishing materials, i.e., those that meet the limits specified in this table, and thinners containing no more than 3.0 percent HAP by weight. °The limits refer to the formaldehyde content by weight of the coating or contact adhesive, as specified on certified product data sheets. This facility is permitted to use both the Compliant Coating and Averaging methods to comply with the NESHAP. Compliance with each of these options is considered to be a separate alternative compliance scenario and the facility must record in a logbook the scenario under which it is operating. The facility is currently using the compliant coating option. The formaldehyde requirements became effective November 21,2014. Per records, the facility emitted 7.67 lbs of formaldehyde in 2020,which is well below the limits. ii. 40 CFR 63.803 "Work Practice Standards" 40 CFR 63.803(a)"Work Practice Implementation Plan"The facility is required to develop and maintain a written work practice implementation plan which addresses the work practice standards in 40 CFR 63.803(b)through(1)as outlined below. Mitchell Gold Company June 2,2021 Page 8 Observed. This WPIP was adapted from the plan developed by Bassett Furniture Company. The facility maintains a copy of the WPIP onsite. It is only two pages,but it seems to cover the required topics. Mitchell Gold Company is a member of the American Furniture Manufacturing Association(AFMA). Mr. Watson has a detailed plan they provide for their employees. Compliance is indicated. 40 CFR 63.803(b) "Operator Training Course" The facility is required to provide specific MACT-compliant training for all new employees and all existing employees within six months of the effective date of the MACT, if the employees are to be involved in finishing, gluing, cleaning, and/or washoff operations. Additionally, annual refresher training is required. The training program has been developed and a copy presented at the inspection. Observed. The training records for all the employees spraying at the time of inspection as well as a random selection of others were reviewed. The training records appeared complete. The last two facility-wide training courses were held on July 8, 2019, and on July 8,2020 for the previous year. Compliance is indicated. 40 CFR 63.803(c) "Inspection and Maintenance Plan" Leak inspections of all equipment used to transfer or apply coatings, adhesives, and/or organic solvents are required to be conducted by the facility on a monthly basis.The date,inspection results, and repairs made must be documented as well as time frames required for repairs. Observed. Leak inspections and maintenance records were available for viewing and appeared to indicate compliance. The logs indicate that inspection frequency and time frames for repair of leaks were within MACT requirements. The official inspections are typically at the end of the month,but the facility documents all leaks noted during the month. There were no obvious leaks noted in the finishing area or pump room during this inspection. Compliance is indicated. 40 CFR 63.803(d) "Cleaning and Washoff Solvent Accounting System" The facility is required to record the quantity and type of organic solvent used each month for washoff and cleaning,the number of pieces washed off,the reason for the washoff, and the quantity of spent washoff solvent generated each month and whether it is recycled onsite or disposed offsite. Observed. The facility uses acetone, an exempt material, as their washoff material. All other records were being maintained as required. North State Environmental disposes of the spent solvent offsite. Compliance is indicated. 40 CFR 63.803(e) "Chemical Composition of Cleaning and Washoff Solvents" Washoff solvent used at the facility cannot contain any of the pollutants listed in Table 4 of Subpart JJ. Observed. The facility uses acetone, a complaint solvent, exclusively as the washoff and line cleaning solvent. Compliance is indicated. 40 CFR 63.803(f) "Spray Booth Cleaning" Compounds used for cleaning spray booth components cannot contain more than 8.0% by weight VOC. If the facility is Mitchell Gold Company June 2,2021 Page 9 using a strippable booth coat no more than 1.0 gallon of organic solvent may be used to prepare each booth for the application of new booth coating. If the facility is using a strippable boothcoat material,it cannot contain more than 0.8 lbs VOC/lb solids. Observed. The facility is using RPM Wood Finishes Group, HC VOC White Boothcoat M55W0009(0.7841 lb VOC/lb solids). This is a compliant boothcoat. 40 CFR 63.803(g)"Storage Requirements"Normally closed containers must be used for storing finishing,gluing, cleaning, and washoff materials. Observed. All VHAPs were in normally closed containers. Compliance is indicated. 40 CFR 63.803(h) "Application Equipment Requirements" Conventional spray guns were permissible under certain circumstances until November 21, 2014. There are no longer any exemptions for sources not venting to control devices. Observed. HPLV spray guns are used exclusively at this at this facility. Compliance is indicated. 40 CFR 63.803(i)and 0)"Line Cleaning and Gun Cleaning"Organic solvents used for line and spray gun cleaning at the facility must be collected in normally closed containers. Observed. The facility uses acetone, which does not contain any HAPs. No solvent from lines or spray guns was being collected at the time of this inspection. Compliance is indicated. 40 CFR 63.803(k) "Washoff Operations" Emissions from washoff operations shall be controlled by using normally closed tanks and tilting or rotating parts to minimize dripping. Observed. Neither washoff tank was in use at the time of this inspection. Both were closed. Compliance is indicated. 40 CFR 63.803(1) "Formulation Assessment Plan for Finishing Operations" The facility must identify VHAPs from Table 5 of Subpart JJ that are being used at this facility and establish a baseline based on the highest annual usage from 1994, 1995 or 1996. If the annual usage of these VHAPs exceeds the baseline level,the facility must provide written notice to DAQ that describes the amount of the increase and the reason for the exceedance of baseline levels. Observed. The facility's baseline is considered the deminimus for all pollutants in Table 5 since they were not operating in 1994, 1995, or 1996. Records of these pollutants are kept as part of the prohibitory small recordkeeping. The only pollutant that the facility is currently emitting that is on Table 5 is formaldehyde, which was 7.67 pounds in 2020. This is well below the 400 pound deminimus. Mitchell Gold Company June 2,2021 Page 10 iii. 40 CFR 63.804"Compliance Procedures and monitoring requirements" 40 CFR 63.804(a) The facility is required to choose a method of compliance to demonstrate compliance with the above emission limits (a)(2) This facility has chosen the compliant coatings approach with averaging as a backup option to show compliance with the emission limitations. The facility is required to maintain certified product data sheets for each coating and thinner. Observed. All of the finishes being used at the time of inspection were checked and all were compliant as shown in the table in section 4 above. A random selection of other materials was also verified to be in compliance. (g)(2) The facility is required to demonstrate continuous compliance by using compliant coatings,maintaining certified product data sheets showing the coatings are compliant,and submitting a compliance certification with the semiannual report which states the facility used compliant coatings each day of the reporting period. See the reporting requirements for 63.807 below. Observed. The facility only uses compliant coatings and product data sheets were made available for me to review during the inspection. (g)(5) The facility is required to demonstrate continuous compliance by submitting a compliance certification stating that compliant contact and/or foam adhesives were used during each day of the semiannual reporting period. See the reporting requirements for 63.807 below. (g)(7) The facility is required to demonstrate continuous compliance by submitting a compliance certification stating that compliant strippable spray booth coatings were used during each day of the semiannual reporting period. See the reporting requirements for 63.807 below. (g)(8) The facility is required to demonstrate continuous compliance by submitting a compliance certification stating that the work practice implementation plan was being followed during each day of the semiannual reporting period. See the reporting requirements for 63.807 below. iv. 40 CFR 63.806"Record keeping requirements" and 40 CFR 63.807"Reporting requirements" The facility is required to maintain records of each of the requirements above. Additionally, the facility is required to submit semi-annual reports indicating compliance with all appropriate sections of 40 CFR 63, Subpart JJ. These reports are due 30 days after the end of each 6-month period. Observed. The facility appears to be maintaining the required records. The latest reports were received on July 20,2020 and January 12,2021. Based on the information submitted,the reports appeared to indicate compliance. Mitchell Gold Company June 2,2021 Page 11 j. Condition A. 12. -Federal and State Rules Applicable to Sources Exempted from Air Permitting Requirements -Your facility is subject to the following federal and state rules: 40 CFR 63 -NESHAP/MALT-- Subpart ZZZZ--Reciprocating Internal Combustion Engines which are applicable to some of the emission sources at the facility listed on the "Insignificant/Exempt Activities" list attached to the Air Permit. Maintenance and Work Practices -Pursuant to 40 CFR 63.6603(a), 63.6625(e), (f), and (h)and 63.6640(f)the Permittee shall comply with the following: i. Change the oil and filter every 500 hours of operation or annually,whichever comes first. The Permittee has the option to utilize an oil analysis program as described in Section c.below in order to extend the specified oil change requirements. ii. Inspect the air cleaner every 1,000 hours of operation or annually,whichever comes first,and replace as necessary. iii. Inspect all hoses and belts every 500 hours of operation or annually,whichever comes first, and replace as necessary. iv. Operate and maintain the engine and control device(if any) according to the manufacturer's emission related written instructions or maintenance plan developed by the Pernuttee that minimizes emissions from the engine to the extent practicable. V. Install a non-resettable hour meter if one is not already installed. vi. Minimize the engine's time spent at idle during startup and minimize the engine's startup time to a period needed for appropriate and safe loading of the engine,not to exceed 30 minutes, after which time the non-startup emission limitations apply. vii. If the engine is operating during an emergency and it is not possible to shut down the engine in order to perform the management practice requirements on the schedules required in Sections i,ii, and iii above, or if performing the management practice on the required schedules would otherwise pose an unacceptable risk under federal, state or local law,the management practices can be delayed until the emergency is over or the unacceptable risk under federal, state, or local law has abated. The management practice shall be performed as soon as possible after the emergency has ended or the unacceptable risk has abated. The Permittee shall report any failure to perform the management practice on the schedule required and the federal, state, or local law under which the risk was deemed unacceptable. viii. If the Permittee does not operate the engine according to the requirements in Sections A. through C.below,then the engine will not be considered an emergency engine under NESHAP Subpart ZZZZ and must meet all requirements for non-emergency engines. A. There is no time limit on the use in emergency situations. Mitchell Gold Company June 2,2021 Page 12 B. The Permittee may operate the engine for any combination of the purposes specified in Sections(i)through(iii)below for a maximum of 100 hours per calendar year. (i) The engine may be operated for maintenance checks and readiness testing,provided that the tests are recommended by federal, state or local government,the manufacturer,the vendor,the regional transmission authority or equivalent balancing authority and transmission operator,or the insurance company associated with the engine. The Permittee may petition the Division of Air Quality(DAQ)Regional Supervisor for approval of additional hours to be used for maintenance checks and readiness testing,but a petition is not required if the Permittee maintains records indicating that federal, state,or local standards require maintenance and testing of the engine beyond 100 hours per calendar year. (ii) The engine may operate for emergency demand response for periods in which the Reliability Coordinator under the North American Electric Reliability Corporation(NERC)Reliability Standard EOP-002-3, Capacity and Energy Emergency or other authorized entity as determined by the Reliability Coordinator has declared an Energy Emergency Alert Level 2 as defined in the NERC Reliability Standard EOP—002-3. (iii) The engine may be operated for periods where there is a deviation of voltage or frequency of 5 percent or greater below standard voltage or frequency. C. Pursuant to 40 CFR 63.6640(f)(4),the engine may be operated for up to 50 hours per calendar year in non-emergency situations. The 50 hours of operation in non- emergency situations are counted as part of the 100 hours per calendar year for maintenance and testing and emergency demand response provided in Section viii.B. above. Observed. The diesel-fired pump(ID No. IES-1) is subject to 40 CFR Part 63 NESHAP, Subpart ZZZZ for Stationary Reciprocating Internal Combustion Engines(referred to as RICE NESHAP). This engine is an existing emergency unit. The facility records all usage in a logbook with the corresponding start and stop hour meter readings. The generator has a non-resettable hour meter which read 441.51 hours during this inspection compared to 412.58 during the last inspection on July 9,2019. The oil change and maintenance performed since the last inspection was conducted on August 11,2020. Compliance is indicated. k. Condition A. 13.The AVOIDANCE CONDITION FOR AREA SOURCES SUBJECT TO 40 CFR 63 Subpart JJJJJJ (6J). The Permittee is avoiding applicability of 40 CFR 63 Subpart 6J for the boiler(ID No. ES-B 1). This source is exempt from this Subpart since it is defined as a gas-fired boiler because it only burns fuel oil during periods of gas curtailment or for periodic testing on liquid fuel. The Permittee shall maintain records that Mitchell Gold Company June 2,2021 Page 13 document the time periods when liquid fuel is fired and the reasons the liquid fuel is fired. They must also provide notification if they no longer become exempt from this regulation. Observed. The boiler was taken out of service in the fall of 2019. These records are no longer applicable. Compliance is indicated. 1. Condition A.14. 2Q .0803 "Coating, Solvent Cleaning and Graphic Arts". The facility potential emissions(defined as actual emissions)are limited to 100 tons per year VOC, 10 tons per year of each individual HAP and 25 tons per year of all HAPs combined. The Facility is required to submit an annual report by March 1 of each year containing a summary of the referenced emissions. Observed. Mr.Watson maintains records of VOC and HAP emissions. The records were made available to me during the inspection. They only have records of the emissions per an annual report from the supplier,but they keep daily records of the usage of each product to verify compliance at any time. The Mooresville Regional Office received the required annual report on January 12, 2021. It indicated that the facility had emitted 8.02 tons VOCs, 0.69 tons total HAPs, and 0.47 tons highest HAP(toluene)in 2020. The report indicated compliance with the permit limits. 8. NSPS/NESHAP Review: This facility is currently subject to the Wood Furniture NEHHAP, Subpart JJ. All records were checked during the inspection and the facility appeared to be in compliance with all of the requirements of the NESHAP. The facility is not subject to the Flexible Polyurethane Foam Production and Fabrication NESHAP Subpart 60. The exempt diesel-fired pump (IES-1) for the fire suppression system is subject to NESHAP Subpart 4Z. The facility is no longer subject to NESHAP Subpart 6J, since the boiler (ES-131) has been decommissioned and disconnected from any fuel source. The facility is subject to NESHAP Subpart 6C for the 600 gallon gasoline tank on site. However, the tank is empty and has not been used since they moved into the building in 2005. 9. Summary of changes needed to the current permit: The boiler (ES-131) has been added to the yellowsheet to be removed from the permit during the next permit revision. Mitchell Gold Company June 2,2021 Page 14 The steam-heated drying ovens (ES-DO1 and ES-D02) have been added to the yellowsheet to be removed from the permit during the next permit revision. 10. Compliance assistance offered duringthe he inspection: None. 11. Section 112(r)applicability: This facility does not appear to be subject to the requirements of the Chemical Accident Release Prevention Program, Section 112(r)of the Clean Air Act. 12. Compliance determination: Based on my observations,this facility appeared to be in compliance with the applicable air quality regulations at the time of the inspection. SLS: c: MRO File https://ncconnect.sharepoint.com/sites/DAQ-MRO/Counties/ALEXANDER/00005/INSPECT 20210602.docx