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HomeMy WebLinkAboutDAQ-2025-001453January 2,2025 CERTIFIED MAIL # RETURN RECEIPT REQUESTED ATTN: NESHAP MACT Reports Utah Division of Air Quality P.O. Box 144820 Salt Lake City, UT 84114-4820 ATTN: NESHAP MACT Reports U.S. Environmental Protection Agency Region 8 1595 Wynkoop St Denver, CO 80202-1129 UTAH DEPARTMENT OF ENVIRONMENTAL OUALITY JAN - i' 2:i25 Di'lIfSlON OF AIR QUALITY RE:40 CFR 63 Subpart WWWW MACT Semi-Annual Compliance Reports for the period of July I,2024 to December 31,2024 To Whom It May Concern: Enclosed are the semi-annual compliance reports for Midwestern Fabricators as required under 40 CFR 63 Subpart WWWW (also known as the Reinforced Plastic Composite Manufacturing MACT rule). This report is for the period July 1, 2024 to December 31, 2024. The compliance report consists of three items, which are attached hereto: o Certified Statement of Compliance with the applicable workpractices in Table 4 o Rolling 6-month HAP Emission Averaging compliance option summary sheet for the period July 1 , 2024 to December 3l , 2024. o Monthly HAP Emission compliance sheets for July 1,2024 to December 3 I , 2024. Please contact me if you have any questions or require any further information. Responsible Official Vice President, Midwestern Fabricators REVIEWEDInitials:Date: March 17, 2025Compliance Status:OKFile #: 11199 (B2)Comment: Subpart WWWW MACTSemi-annual Report. Notice of Compliance MACT Work practice Compliance Status I have personally examined and am familiar with the information in this document and all attachments thereto, and t certifu that based on reasonable investigation, including my inquiry of those individuals responsible for obtaining the information, the submitted information is true, accurate and complete to the best of my knowledge and belief. The following certified statements demonstrate compliance with those Composite MACT work practice standards listed in Table 4 to subpart WWWW of Part 63 that apply to the reinforced plastic (polymer casting) composite manufacturing operations at the Midwestern Fabricators facility in Salt Lake City, Utah for the period of July I ,2024 to December 31,2024: l. All cleaning materials contain no HAP, except styrene contained in closed systems or cleaning materials used to clean cured resin from application equipment. All HAP-containing storage containers are kept closed or are covered except when adding or removing materials. Any bulk storage tanks are vented only as necessary for sat-ety. HAP-containing containers of 5 gallons capacity or less may be open when active mixing is taking place, or during periods when these containers are being used to apply resin. Mixer covers are closed during mixing except when adding materials to the mixers or changing covers to the mixing vessels, and those gaps around the mixer shafts and required instrumentation are less than I inch. Mixers are not actively vented to the atmosphere when the agitator is turning, except when adding materials is necessary for safety. All mixers are closed except when adding materials to the mixing vessels. All mixing containers with 5 gallons or less capacity may be open during active mixing. Mixing containers with a surface area of 500 square inches or less used for polymer casting mixing operations may also be open while active mixing is taking place. Date: January 2,2025 .{, Signature: 2. 4. 5. 6. Shaun C VP Mi ern Fabricators, Inc. 8= id =3 f i qB d d{ =Qm - ia $ NO -: . 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J Fi t J 38 8 ', J 38 8 F'J le 9a* J 6a : l* r ix ! 38 t F* r 38 t i* t ii .T} ; i$ g is 9 i$ 5 ri 5 i$ s li t , .* J 38 E it J 38 E l. e J ia E a* , fr al l !, , tr t rl oo o 5 ! i t tI t 3r l *l .f i l ,e o e e o o o U E q i is 3 3 t t 3 3 3 i t ! oo o 6 N o ( )o o o o it t f i i x t ; t 3 e t :* r * * * * * f , * * i ,, tt , I rr i r a* { e6 6 *8 J 33 [ tl e ds t F* r 38 ; a* : tt , ,:? , tt I tt ; P* c l! E tt 9 REVIEWEDInitials:Date: March 17, 2025Compliance Status:OKFile #: 11199 (B2)Comment: Subpart WWWW MACTSemi-annual Report.