Consent Order Progress Report For
Fourth Quarter 2019

Submissions to the State of North Carolina and Cape Fear River Watch
The following table identifies submissions made by Chemours pursuant to the requirements of theConsent Order for the period of October 1, 2019 through the end of the fourth quarter on December
31, 2019. 1COSection
8Submitted
To
NCDAQ

8NCDAQ

888

NCDAQ
NCDAQ
NCDAQ

11

NCDEQ

12

NCDEQ

16182628

NCDEQ
NCDEQ
NCDEQ
NCDEQ

Title
82% Facility-Wide Reduction of GenX Compounds Emissions
Pursuant to Consent Order Paragraph 8.aVinyl Ethers North Carbon Bed and Stack Test Report andPolymers Stack Test ReportMonthly Emissions ReportMonthly Emissions ReportMonthly Emissions Report and Vinyl Ethers South Carbon
Bed and Stack Test Report
Quarterly Report for Characterization of PFAS in Processand Non-Process Wastewater and Stormwater
Cape Fear River PFAS Loading Reduction Plan –Supplemental Information Report
Corrective Action Plan
Updated On and Offsite Assessment Report
Total Organic Fluorine First Quarterly Report
Consent Order Quarterly Progress Report

SubmittedDate
12/03/2019
10/25/2019
10/21/2019
11/20/2019
12/20/2019
10/31/2019
11/04/2019
12/31/2019
10/31/2019
12/10/2019
10/17/20192019 Year-End Residential Drinking Water Well Summary

1 Consent Order submissions by Chemours from lodging of the Proposed Consent Order in November

2018 through March 31, 2019 were presented in the 1st quarter report, April 1, 2019 through June30, 2019 in the 2nd quarter report, and July 1, 2019 through September 30, 2019 in the 3rd quarter
report.

Consent Order Progress Report For
Fourth Quarter 2019

Replacement Drinking Water Actions(Replacement drinking water actions from November 20182 - December 31, 2019)

2 The date the proposed Consent Order was lodged.

Consent Order Progress Report For
Fourth Quarter 2019

Consent Order Progress Details
This section summarizes the activities that have been undertaken by Chemours pursuant tothe Consent Order Compliance Measures for the period from October 1, 2019 through the endof the fourth quarter of 2019 (December 31, 2019).

Section 7 Control Technology
Improvements
Chemours successfully completed installationand startup of its new thermal oxidizer
facility (see photo at right) on December 27,
2019. Construction was mechanicallycomplete in November, and after routine
commissioning activities and tests for thefacility, the thermal oxidizer became fully
operational on December 27. Chemours
switched to the permitted operating scenario
for the thermal oxidizer on December 31.
Within 90 days of installation, Chemours andthe North Carolina Division of Air Quality willconduct testing to confirm that the thermaloxidizer is destroying 99.99% of all PFAS air emissions routed to it (from the HFPO, Vinyl Ethers
North, Vinyl Ethers South, Polymers, RSU, TFE and MMF processes).

Section 8 GenX Emissions Reduction Milestones
During the fourth quarter, Chemours submitted monthly emissions reports in October,November, and December, which provided the details of emissions to date to meet theConsent Order requirements of 82% and 92% for plant-wide interim reductions of air
emissions of GenX Compounds. A final report demonstrating compliance with the Consent
Order Section 8.a 82% reduction requirement was submitted on December 3, 2019.
Pursuant to Consent Order Section 8.b.i., Chemours completed testing of the facility’s 2019
product campaigns with testing for E2 in December 2019, which was the first run of that
product in 2019. Chemours submitted the E2 emissions test report on January 21, 2020.

Section 10 No Discharge of Process Wastewater from Chemours’ Manufacturing Areas
Chemours continues to not discharge its process wastewater and to ship all of its processwastewater offsite for disposal.

Consent Order Progress Report For
Fourth Quarter 2019

Section 11 Characterization of PFAS in Process and Non-Process Wastewater andStormwater at the Facility
Chemours’ consultant Geosyntec prepared its second quarterly report describing andanalyzing characterization sampling of process water, non-process wastewater andstormwater that occurred in August 2019, as well as samples from April 2019 and June 2019that were re-analyzed to achieve lower reporting limits. Chemours submitted the report toNCDEQ on October 31, 2019. Additional bimonthly sampling under Paragraph 11 wasconducted on October 9 and 10 as well as December 20 and 23, 2019. Samples were collectedfrom 19 locations during the October 2019 sampling event and from 22 locations during theDecember 2019 event. Geosyntec is preparing the next quarterly report for submission byJanuary 31, 2019 to include data from these events.
During the fourth quarter, Chemours also completed non-targeted testing on two sets ofsamples collected during June and August 2019. Samples were collected from five locations.
There were no detections of any new analytes in samples collected from locations 8, 15, and20.
Sample Location
Sample Location Description
Number8Outfall 001 non-Chemours treated process wastewater
discharged to open channel to Outfall 001
1520

Combined stormwater and NCCW discharge from eastern
portion of the Facility
Outfall 002 to Cape Fear River

There were detections of new analytes in initial testing of samples collected from locations 16and 17 (process wastewaters sent for offsite disposal). Chemours is in the process ofdetermining the structure of the new analytes and will communicate its findings whenavailable.
Sample Location Number Sample Location Description
16

Chemours Monomers IXM Area combined processwastewater

17

Chemours PPA Area combined process wastewater

Section 11.2 Characterization of PFAS Contamination in River Sediment
Chemours received from NCDEQ comments on the Sediment Characterization Plan on
November 20, 2019. Chemours is preparing responses to these comments and will submit theresponses in January 2020.

Consent Order Progress Report For
Fourth Quarter 2019

Section 12 Accelerated Reduction of PFAS Contamination in the Cape Fear River andDownstream Water Intakes
On November 4, 2019, Chemours submitted the Cape Fear River Loading Reduction Plan –Supplemental Information Report prepared by Chemours’ consultants Geosyntec and Parsons.
On December 19, 2019, Chemours received comments from NCDEQ and Cape Fear River
Watch. Chemours is preparing responses to these comments and will submit the responses inJanuary 2020.

Section 14 Toxicity Studies
During the fourth quarter, Chemours discussed its plan for the studies with NCDEQ. Study
protocol development has started, and data collection is targeted to begin in March or April
2020.

Section 16 Groundwater Remediation
Chemours submitted the Corrective Action Plan (CAP), prepared by Geosyntec, on December
31, 2019. The CAP describes proposed remediation activities to address legacy PFAS ingroundwater and surface waters at Fayetteville Works, in accordance with the requirements ofthe Consent Order and the North Carolina 2L Rules. The CAP also contains supporting
documentation, including ecological and human health screening level exposure assessments(SLEAs).

Section 18 On and Off-site Assessment
Chemours submitted to NCDEQ an updated version of the On and Offsite Assessment Reporton October 31, 2019. The updated report included newly available data from on and offsite
soil and groundwater samples and a synoptic groundwater level collection event. Associatedtext, tables, figures and appendices were also updated.

Sections 19 and 20 Provision of Public Water Supplies, Whole Building Filtration
Systems, and Reverse Osmosis Drinking Water Systems
Chemours’ contractors continued to install GAC whole building filtration systems and RO
drinking water systems at residences. Statistics are provided in the “Replacement Drinking
Water Actions” section above.

Section 21 Private Well Testing
The Adaptive Step Out and Infill Sampling Program has been ongoing since the 3rd quarter of2019. Two to four stages of step out sampling have occurred across the sectors and thecurrent step out distance intervals from the Site range from 4.5-5.5 miles to 9.5-10.5 miles.
Results for the current stage of step out sampling are pending. Infill sampling is ongoing for all
sectors and distance intervals from the Site range from 2.5-6.5 miles to 5.5-9.5 miles.
Since the Consent Order was signed, the project team has made a total of 8,248 visits to 4,651
residences and collected 2,492 samples. This quarter (October 2019 through December 2019)
there have been 5,356 visits made to 3,347 residences and 1,463 samples have been collected.

Consent Order Progress Report For
Fourth Quarter 2019

Section 22 Provision of Sampling Results
Chemours provided (and continues to provide) sampling results to NCDEQ and residences as
required under the Consent Order.

Section 23 Interim Replacement of Private Drinking Water Supplies
All residences eligible to receive the interim replacement drinking water supplies havereceived the supplies (i.e., bottled water). As of December 31, 2019, there are 1,478
residences receiving bottled water.

Section 26 Total Organic Fluorine
Chemours submitted to NCDEQ the Total Organic Fluorine first quarterly progress report onDecember 10, 2019, following NCDEQ’s approval on October 2, 2019 of Dr. Susan D.
Richardson as the third party contractor for the Total Organic Fluorine study.

Section 28 Reporting
Chemours submitted the Consent Order 3rd quarter progress report on October 17, 2019.

Sections 29 and 30 Public Information
Chemours has continued to post its Consent Order submissions at
https://www.chemours.com/Fayetteville-Works/en-us/c3-dimer-acid/compliance-testing/.