Air Quality Sampling

Deposition Sampling

Starting in January of 2018, the Division of Air Quality began sampling to assess the deposition of GenX via air emissions from the facility.

Weekly results (combined) 3/20/18 to 12/17/19

Weekly Results (combined) 12/30/19 to 8/24/21

Background Deposition Measurements

Graph of GenX Deposition Measurements 3/20/18-06/04/19

PFAS Background and Chemours Nearfield Deposition Data 12/30/2019

Weekly Atmospheric Deposition Data

Emissions Testing

The following table is a summary of source testing performed at Chemours since January 2018. Chemours has contracted with the source testing company Weston Solutions, Inc. for on-site air emissions sampling. Chemours has also contracted with Test America Laboratories, Inc. for the methodology, and laboratory analysis. DAQ staff were present for each source test conducted.

Week of	TEST ID	Compound	Process/Notes/Results
1/8/2018	2018-006ST	C3 Dimer	VEN and PPA Shakedown Testing No Test Report Prepared, PPA Room Air single value
1/22/2018	2018-083ST	C3 Dimer	VEN and PPA Test Report Received (Electonic 3/12/18, Hardcopy 3/28/18) Test Review Completed (3/27/18, 4/6/18) EPA Split Results Received
2/26/2018	2018-084ST	C3 Dimer	VES and PPA Test Report Received (Electronic Copy Only, 3/28/18) Test Review Complete EPA Split Results Received 11/29/18
3/19/2018	2018-085ST	C3 Dimer	VEN, Polymers, and Semi-Works Test Report Received (Electronic Copy Only, 4/27/18) Test Review Completed
4/3/2018 4/23/2018	2018-109ST 2018-135ST	HFPO	VEN, VES Test Report Received(Electronic and Hard Copy, 6/15/18) Includes 4/3/18 and 4/32/18 test data Test Review Competed
5/14/2018	2018-137ST	E1	Polymers Test Report Received (Electronic Copy, 12/7/18) Test Review - Completed
6/11/2018	2018-167ST	C3 Dimer	VEN and PPA Test Report Received (Electronic Copy, 8/9/2018) Test Review Completed
7/16/2018	2018-168ST	C3 Dimer	VEN and PPA Test Report Received (Electronic Copy, 12/7/18) Test Review - Completed
7/23/2018	2018-168ST	C3 Dimer	VEN and PPA Test Report Received (Electronic Copy, 12/7/18) Test Review - Completed
8/20/2018	2018-357ST	C3 Dimer	VES and VEN Test Report Received (Electronic Copy, 12/7/18) Test Report A Received (Electronic Copy, 12/7/18) Test Review - Completed
11/12/2018	No Test Tracking Assigned	C3 Dimer	VEN Test aborted due to start-up issues
12/3/2018	2018-366ST	C3 Dimer	VEN Tested 12/6-7/18 after startup/ pluggage issues
1/7/2019	2019-013ST	C3 Dimer	VES, PPA, and Semi-Works Test Report Received (Electronic Copy 2/22/2019) VES Test Report VES Test Review - Completed PPA Test Report PPA Test Review - Completed Semi-Works Test Report Semi-Works Test Review - Completed Test Review - Completed
1/14/2019	2019-014ST	C3 Dimer	VEN, Polymers, and Semi-Works Test Report Received (Electronic Copy 3/4/2019) VEN Division Stack Test Report Polymers Test Report Semi-Works Test Report Test Review - Completed VEN Carbon Bed Removal Efficiency Test Report Received (Electronic Copy 2/15/2019) VEN Carbon Bed Test Report Test Review - Completed
2/25/2019	2019-070ST	C3 Dimer	VEN Division Stack, Blower Intake (Ambient), and Carbon Bed Efficiency Test Report Received (Electronic Copy, 4/15/2019) Division Stack/Blower Intake Test Report VEN Carbon Bed Test Report Test Review - Completed
3/25/2019	2019-203ST	C3 Dimer	VEN Division Stack, Carbon Bed Removal Efficiency Test Report Received (Electronic Copy, 4/22/2019) VEN Division Stack/Carbon Bed Test Report Test Review - Completed
4/15/2019	2019-204ST	C3 Dimer	VEN Division Stack, Carbon Bed Removal Efficiency Test Report Received (Electronic Copy, 6/5/2019) VEN Division Stack/Carbon Bed Test Report Test Review - Completed
4/29/2019	2019-205ST	C3 Dimer	PPA Carbon Bed Removal Efficiency, PPA Stack Test Report Received (Electronic Copy 6/21/2019) PPA Stack/Carbon Bed Test Report Test Review - Completed
5/20/2019	2019-206ST	C3 Dimer	VES Stack Test Report Received (Electronic Copy 6/21/2019) VES Stack Test Report Test Review - Completed
6/10/2019	2019-208ST	C3 Dimer	Test Report Received (Electronic Copy 7/11/2019) PPA Carbon Bed/Stack PPA Test Review VEN Carbon Bed/Stack Test Report Received (Electronic Copy 7/16/2019) VEN Carbon Bed/Stack VEN Test Review
7/15/2019	2019-261ST	C3 Dimer	VES Carbon Bed/Stack Test Report Received (Electronic Copy 8/21/2019) VES Carbon Bed/Stack Test Review - Completed
9/9/2019	2019-308ST	C3 Dimer	PPA Carbon Bed/Stack Test Report Received (Electronic Copy 10/11/2019) PPA Carbon Bed/Stack Test Review - Completed
9/23/2019	2019-336ST	C3 Dimer	Polymers Stack, VEN Carbon Bed/Stack Test Report Received (Electronic Copy 10/25/2019) Polymers Stack VEN Carbon Bed/Stack Test Review - Completed
11/20/2019	2019-360ST	C3 Dimer	VES Carbon Bed Test Report Received (Electronic Copy 12/20/2019) VES Carbon Bed Test Test Review - Completed
12/02/2019	2020-037ST	C3 Dimer	VEN Division Stack, E-2 Stack Test Report Received (Electronic Copy 1/21/2020) VEN Division Stack E-2 Stack Test Review - Completed
1/6/2020 - 1/7/2020 1/8/2020 - 1/9/2020	2020-289ST 2020-290ST	C3 Dimer	VEN Carbon Bed Report PPA Carbon Bed VEN Carbon Bed PPA Carbon Bed Report
2/19/2020 - 2/20/2020	2020-291ST	C3 Dimer	VES Carbon Bed VES Carbon Bed Report
2/28/2020 - 2/29/2020	2020-0105ST	C3 Dimer, PFAS	Thermal Oxidizer Test Review Summary
6/25/2020	2020-307ST	C3 Dimer	VEN Carbon Bed VEN Carbon Bed Report VES Carbon Bed VES Carbon Bed Report PPA Carbon Bed PPA Carbon Bed Report
9/03/2020	2020-309ST	C3 Dimer	VEN Carbon Bed VEN Carbon Bed Report VES Carbon Bed VES Carbon Bed Report PPA Carbon Bed PPA Carbon Bed Report
12/09/2020	2020-316ST	C3 Dimer	VEN Carbon Bed VEN Carbon Bed Report VES Carbon Bed VES Carbon Bed Report PPA Carbon Bed PPA Carbon Bed Report
1/25/2021	2021-039ST	C3 Dimer/PFAS	Thermal Oxidizer Compliance Test
3/7/2021	2021-127ST 2021-128ST 2021-129ST	C3 Dimer C3 Dimer C3 Dimer	PPA Carbon Bed PPA Carbon Bed Test Report VEN Carbon Bed VEN Carbon Bed Test Report VES Carbon Bed VES Carbon Bed Test Report
5/5/2021 5/6/2021 5/17/2021 5/18/2021 5/19/2021	2021-241ST 2021-242ST 2021-243ST 2021-244ST 2021-245ST	C3 Dimer	SW Carbon Bed PPA Carbon Bed VEN Carbon Bed Polymers Exhaust Stack F VES Carbon Bed
9/xx/2021	2021-316ST 2021-317ST 2021-318ST	C3 Dimer	PPA Carbon Bed Test Report Received (Electronic Copy 10/22/2021) VES Carbon Beds Test Report Received (Electronic Copy 10/22/2021 VEN Carbon Beds Test Report Received (Electronic Copy 10/22/2021

VEN-Vinyl Ethers North, VES-Vinyl Ethers South, PPA- Polymer Processing Aid, SW - SemiWorks