DEQ-CFW_00073238

6. 15A NCAC 2Q .0317: AVOIDANCE CONDITIONS
for 15A NCAC 2D .0530: PREVENTION OF SIGNIFICANT DETERIORATION
a. In order to avoid applicability of this regulation, the HFPO process (ID No. NS-A) shall
discharge into the atmosphere less than 85.3 tons of VOCs per consecutive 12-month period.
Testing [15A NCAC 2Q .0508(f)]
b. If emissions testing is required, the Permittee shall perform such testing in accordance with
General Condition JJ. If the results of this test indicate annual emission rates in exceedance of
the limit given in Section 2.1 C.6.a above, the Permittee shall be deemed in noncompliance with
15A NCAC 2D .0530.
Monitorim/Recordkeeping [15A NCAC 2Q .0508(f)]
c. To demonstrate compliance with the limit provided in Section 2.1 C.6.a, within 30 days of the
end of each calendar month the Permittee shall create and retain production records and estimate
associated VOC emissions for the previous calendar month, as follows:
i. Record the total raw material HFP consumed (MxFP) in the affected facility during the
previous calendar month;
ii. Record the average vent flow rate and composition from the AF column (QAC) and Stripper
columns (Qsc) during the previous calendar month;
iii. Using a combination of ratios of vent rates (QAC and Qsc) to HFP consumption (MHFP) from
the process flowsheet and actual vent data, determine the process VOC emissions (EP) from
the AF column (EAc), stripper column (Esc), solvent recycle tank (EsRT), solvent reclamation
converters Esxc), and routine decontamination of HFP unloading system (EDc) through the
baffle -plate scrubber (ID No. NCD-Hdrl or NCD-Hdr2).
EP = EAC + ESC + ESRT + ESRC + EDC
iv. Calculate the VOC emissions through the baffle -plate scrubber (ID No. NCD-Hdrl or NCD-
Hdr2) from maintenance activity (EM) based on vessel volumes and vapor density for each
occurrence of this activity during the previous calendar month.
v. Calculate the VOC emissions from fugitive emissions (EF) using accepted practices during
the previous calendar month.
vi. Record VOC emissions from any accidental releases (EA) during the previous calendar
month.
vii. Calculate the VOC emissions (E) from the affected facility during the previous calendar
month (in lb/month) using the following equation:
E=EF+EM+EF+EA
viii. Calculate the 12-month rolling VOC emissions from the affected facility by summing the
monthly VOC emissions (E), as calculated in 2.1 C.6.c.vii above, for the previous
consecutive 12-months.
Required records shall be maintained in a logbook (written or electronic format) on -site and made
available to an authorized representative upon request. The Permittee shall be deemed in
noncompliance with 15A NCAC 2D .0530 if the above records are not created and retained, or if
the 12-month rolling VOC emission rate calculated in viii., above, exceeds the limit in Section
2.1 C.6.a of this permit.
DEQ-CFW 00073238