2019.09_CCO.p8.A_Inventory of Emissions of GenX Compounds

Chemours Company - Fayetteville Works Sep-19
Air Permit No. 03735T45

Table 1

Inventory of Emissions of GenX Compounds
(Per Consent Order, Paragraph 8a)

September-19

Month Notes Status
GenX
Compound
Emissions
(lbs)
October 6-31, 2018 1 Actual 0.1
November 2018 Actual 57.8
December 2018 2 Actual 69.5
January 2019 Actual 10.9
February 2019 Actual 31.7
March 2019 Actual 46.7
April 2019 Actual 9.7
May 2019 Actual 10.3
June 2019 Actual 11.9
July 2019 Actual 3.0
August 2019 Actual 4.0
September 2019 Projected 4.7
October 1-5, 2019 3 Projected 0.1
Total GenX Compound Emissions
(12-Month Period from October 6, 2018
through October 5, 2019)
260.4

2017 Baseline Emissions 2,302.7
Percent Reduction 88.69%

Notes:
1) Contains emissions from October 6, 2018 - October 31, 2018
2) Contains summation of emissions from December 1 - 30, 2018 and December 31, 2018
3) Contains emissions from October 1, 2019 - October 5, 2019

Assumptions:
1) Emission rates for PPVE campaign runs determined using the following for
the Feb/March campaign: 52.4% operating time ABR is on, 2.7% burnout, and
44.9% ABR is off. And the following for Dec 20-30, 2018 PPVE Campaign:
38.2% operating time ABR is on, 2.1% burnout, and 59.7% ABR is off.
2) Carbon bed became operational on VE-South process and equipment
emissions on June 29, 2019. Emissions from July stack testing data were
utilized for the period after installation.
3) [For March only] Emission rate for when the ABR only was operating was
determined by subtracting the 230 kg/hr ABR on and ABR off runs from the
February 2019 stack testing. Stack testing following the permeator tie-in
(March 2019) was not utilized for determining ABR only emissions since those
specific conditions were not tested independently. Therefore, emissions rates
after the permeator was tied in to the scrubber were calculated using the
following control efficiencies: 99.1% for Division Scrubber (obtained from acid
fluoride testing conducted by Entec Services in 2013), 45% for Secondary
Scrubber (most conservative efficiency from the Dec 2018 stack testing), and
95.1% for Carbon Bed (from March 2019 stack testing).
4) Unless otherwise noted, emissions are calculated using average stack test
data from relevant stack testing.

Chemours Company - Fayetteville Works Sep-19
Air Permit No. 03735T45

Table 2

Inventory of Emissions of GenX Compounds
(Per Consent Order, Paragraph 8b)

September-19

Month Notes Status
GenX Compound
Emissions
(lbs)
December 31, 2018 1 Actual 0.3
January 2019 Actual 10.9
February 2019 Actual 31.7
March 2019 Actual 46.7
April 2019 Actual 9.7
May 2019 Actual 10.3
June 2019 Actual 11.9
July 2019 Actual 3.0
August 2019 Actual 4.0
September 2019 Projected 4.7
October 2019 Projected 0.3
November 2019 Projected 8.3
December 1-30, 2019 2 Projected 3.2
Total GenX Compound Emissions
(12-Month Period from December 31, 2018
through December 30, 2019)
145.0

2017 Baseline Emissions 2,302.7
Percent Reduction 93.70%

Notes:
1) Contains emissions from December 31, 2018 only
2) Contains emissions from December 1, 2019 - December 30, 2019

Assumptions:
1) Emission rates for PPVE campaign runs determined using the following for the
Feb/March campaign: 52.4% operating time ABR is on, 2.7% burnout, and 44.9%
ABR is off. And the following for Dec 20-30, 2018 PPVE Campaign: 38.2%
operating time ABR is on, 2.1% burnout, and 59.7% ABR is off.
2) Carbon bed became operational on VE-South process and equipment emissions
on June 29, 2019. Emissions from July stack testing data were utilized for the
period after installation.
3) [For March only] Emission rate for when the ABR only was operating was
determined by subtracting the 230 kg/hr ABR on and ABR off runs from the
February 2019 stack testing. Stack testing following the permeator tie-in (March
2019) was not utilized for determining ABR only emissions since those specific
conditions were not tested independently. Therefore, emissions rates after the
permeator was tied in to the scrubber were calculated using the following control
efficiencies: 99.1% for Division Scrubber (obtained from acid fluoride testing
conducted by Entec Services in 2013), 45% for Secondary Scrubber (most
conservative efficiency from the Dec 2018 stack testing), and 95.1% for Carbon Bed
(from March 2019 stack testing).
4) Unless otherwise noted, emissions are calculated using average stack test data
from relevant stack testing.