DAQ-2024-007821

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OWENS CORNING
t,TAH DEPARTMENT OF
ENVIRONMENTAL QUAUry
FEB - I
DIVISION OF AIR QI..'AI.II'
INSUTATING SYSTEMS, ttc
Nephi Facility
2752 South Main Street
Nephi, Utah 84il8
1.8OO.GET.PINK*
www.owenscorning.com
January 30,2024
Division of Air Quality
Utah Department of Environmental Quality
195 North 1950 West
P.O. Box L44820
Salt Lake city, UT 847L6
Via Certified Mail:
REVIEWED
Reference:Forming Section Scrubbers NSPS Report
Owens Corning lnsulating Systems, LLC - Nephi Facility
Approva I Order DAQE-AN 141780008-23
Period from July L,2023 through December 3L,2023
To Whom lt May Concern:
This letter serves as the semi-annual report of deviations of required monitoring parameters for
the four Forming Section Scrubbers and the one Process Development Line Scrubber, as required
by 40 CFR 60.684(d) (Subpart PPP: Standards of Performance for Wool Fiberglass lnsulation
Manufacturing Plants). Section ll.B.2.b of Approva! Order DAQE-AN141780008-23 (lssued April
6,20231provides the operating parameters to be maintained and monitored. The report period
is July 1,2023 through December 3t,2023.
Emissions from the bonded fiberglass insulation line are controlled by four scrubbers, and the
process development line is controlled by one scrubber. Water flow and differential pressure (dP)
monitoring deviations are summarized below.
Water Flow Monitoring Results
o Scrubber A:41 No Datas.
o Scrubber B:29 No Datas.
o Scrubber C: 29 No Datas.
o Scrubber D: 29 No Datas.
o Process Development Line: No Deviations.
Differential Pressure (dP) Monitorine Results
o Scrubber A: 43 No Datas.
o Scrubber B: 29 No Datas.
o Scrubber C:29 No Datas.
o Scrubber D: 29 No Datas.
o Process Development Line: No Deviations.
When a data check is missed, the data recording process is reviewed with personnelto make sure
that readings must be taken every 4 hours. When a low/high flow or low/high dP reading occurs,
a reaction plan is triggered to address the equipment related issue that caused the out-of-range
reading. This process will continue to be evaluated in order to lessen or eliminate such
occurrences.
Equipment calibrations are required per 40 CFR 60.683(c) and Section 1l.B.2.b.1of Approval Order
DAQE-AN141780008-23. Calibration checks were conducted for each scrubber's flow meter
which operated in the 3'd and 4th quarters. All calibration checks were within specification. Per
the manufacturer's recommendation, calibration of the dP gauges is not required.
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on information and belief formed
after reasonable inquiry, including the person or persons who manage the system, or those
persons directly responsible for gathering the information, the stated information in this letter is
true, accurate and complete.
Please contact Stefan Messmer at (618) 7L3-3L92 if you have any questions.
Danielle Sendi
Plant Leader
Owens Corning lnsulating Systems, LLC - Nephi
Attachments
ir
ULF Scrubber "A" Flow Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "A" Flow: Q3 + Q4 2023
Q3+Ql
Total
No Data 4t
Low 0
High 0
LTTAH DEPARTMENT OF
ETWIRONMENTAL QUALITY
FEB - 1 2024
DIVISION OF AIR QUALITY
ULF Scrubber "A" Differential Pressure Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "A" Differential Pressure: q3 + Q4 2023
Date/Time: 7:00 11:00 15:00 19:00 23:00 3:00
22-)ul No Data No Data No Data
26-Jul No Data No Data
30{ul No Data No Data No Data
31-Jul No Data No Data No Data No Data No Data
2-Aug No Data No Data
12-Aug No Data No Data No Data No Data No Data No Data
1-3-Aug No Data No Data No Data No Data No Data No Data
14-Aug No Data No Data No Data No Data No Data No Data
31-Aug No Data No Data
11-Sep No Data No Data
23-Sep No Data
2-Oct No Data
7-Oct No Data No Data
15-Oct No Data No Data
Q3+Q4 No Data I
0
Total Low
H
ULF Scrubber "8" Flow Deviation Summary
2nd Half 20-23 NSPS Semi-Annual Report
Owens Corning lnsulating Systerns ILC
Nephi, UT
ULF Scrubber "B" Flow: q3 + Q4 2023
Datefiime:7:00 11:00 15:00 19:00 23:00 3:00
1Z-Aug No Data No Data No Data No Data No Data No Data
t3-Aug No Data No Data No Data No Data No Data No Data
14-Aus No Data No Data No Data No Data No Data No Data
Q3+q+
Total
No Data 29
Low 0
High 0
ULF Scrubber "B" Differential Pressure Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning !nsulating Systems LLC
Nephi, UT
ULF Scrubber "B" Differential Pressure: Q3 + Q4 2023
Date/Time:7:00 11:00 15:00 19:00 23:00 r 3:00
26-Jul I No Data No Data
12-Aug No Data No Data No Data No Data No Data No Data
13-Aue No Data No Data No Data No Data No Data No Data
14-Aug No Data No Data No Data No Data No Data No Data
31-Aug No Data No Data
11-Sep No Data No Data
23-Sep No Data
7-Oct No Data No Data
15-Oct No Data No Data
T*30 P#"1 +Total ffi_l 0
ULF Scrubber "C" Flow Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "C" Flow: Q3 + Q4 2023
Date/Time: l- -
25Jul No Data I No Data
12-Aug No Data No Data No Data No Data No Data No Data
13-Aug No Data No Data No Data No Data No Data No Data
14-Aug No Data No Data No Data No Data r No Data No Data
31-Aug No Data No Data
11-Sep No Data No Data
23-Sep No Data
7-Oct No Data No Data
15-Oct No Data No Data
Q3+Q4
Total
No Data 29
Low 0
Hieh 0
ULF Scrubber "C" Differential Pressure Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "C" Differential Pressure: Q3 + Q4 2023
D
26-Jul No Data No Data
L2-No Data No Data No Data No Data No Data No Data
13-No Data No Data No Data No Data No Data No Data
14-Aug No Data No Data No Data No Data No Data No Data
31-No Data No Data
11-Sep No Data No Data
23-Sep I No Data
7-Oct No Data No Data
15-Oct No Data No Data
Q3+Q+
Total
No Data 29
Low 0
Hieh 0
ULF Scrubber "C" Flow Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "D" Flow: Q3 + Q4 202311o0ffi-zgoo
12-Aug I No Data No Data No Data
No Data No DataNo Data No Data No Data i No Data
No Data No Data
31-Aus No Data
No Data I No Data
15-Oct No Data
Q3+q4
Total
No Data 29
Low 0
Hieh 0
ULF S.crubber "D" DifferentiaI Pressure Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
ULF Scrubber "D" Differential Pressure: q3 + Q4 2023
Dateflime:7:00 11:00 15:00 19:00 23:00 3:00
12-Aue No Data No Data No Data No Data No Data No Data
13-Aug No Data No Data No Data No Data No Data No Data
14-Aug No Data No Data No Data No Data No Data No Data
Q3+q4
Total
No Data 29
[ow 0
Hieh 0
Process Development Line (Unit 8) Flow Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
Unit I Flow: Q3 + Q4 2023
Q3+qq
Total
No Data 0
Low 0
Hish 0
Process Development Line (Unit 8) Differential Pressure Deviation Summary
2nd Half 2023 NSPS Semi-Annual Report
Owens Corning lnsulating Systems LLC
Nephi, UT
Unit 8 Differential Pressure: Q3 + Q4 2023
Q3+q4
Total
No Data 0
Low 0
Hieh 0
UTAH DEPARTMENT OF
ENVTRONMENTAL QUAI.ITY
FEB - 1 7_A?_4
DIVISION OF AIR QUAUW