DEQ-CFW_00083074

|sthe water still considered safe todrink?
People can drink their water. Remember, health information has not been developed about the
chemicals that have been identified. Until we have sufficient health data, regulatory limits cannot be
established.
We believe at this time the water is safe to drink. Until we know more about the health impacts from
the Nafion 1 and 2 byproducts and out of an abundance of caution, we are asking the company to stop
discharging these compounds immediately and provide the state with information about all other
unregulated chemicals in its waste stream.
EPA further analyzed water samples DEQ had collected to understand the presence of other non-GenX
compounds. The analysis focused on three additional perfluorinated compounds also analyzed in the
EPA used a new methodology to identify and estimate the concentration of the compounds. Using a
process, known as mass spectrometry, EPA determined that three of the original 12 compounds were
higher in concentration and decided to focus on those compounds first. The EPA indicates that they
intend to study other the unregulated chemicals identified in the Sun et a|. paper in the future. We do
not have results for the other eight.
Why are oxejust now hearing about this Nafion1and 2 byproduct?
The Nafionbyproducts were not included inthe ZOl6Sun eta|.report. The state asked EPA to conduct
the same evaluation asthe Sun study. However, the EPA also included the Nafionbyproducts asearlier
work by EPA indicated the presence of these compounds. The EPA estimated that these two
compounds were present in concentrations equivalent or greater than the GenX compounds, so the
agency elected to include these compounds in the preliminary work on the other compounds.
What are the are health impacts from these new chemicals?
Currently there is not enough health data to determine a health goal like there was for GenX.
How long has Chenmousbeen discharging these chemicals?
Information about the chemicals included in Chemours' waste stream, including those materials
identified in EPA's recent analysis, is part of what the DEQ iscontinuing to investigate.
Did their wastewater permit from DEQ allow them todischarge these chemicals? |fso, why?
The manufacturing processes at the Chemours plant are named in the wastewater permit application
but the specific chemicals recently identified and analyzed by the EPA are not included in the company's

wastewater discharge permit application or as a permit condition because currently they are not
regulated by the federal government orthestates.
What action isthe state taking todetermine the potential impacts of these chemicals inour drinking
water?
As part of its ongoing investigation, the N.C. Department of Environmental Quality this week urged
Chemoursto stop discharging two newly identified unregulated compounds at its Fayetteville facility
and called on the company to provide the state with a complete inventory of all the chemicals included
in its waste stream.
DEQ made those requests in a letter the state agency issued to Chemours Tuesday.
DEQ and the N.C. Department of Health and Human Services have directed all available resources to
investigate the presence ofGenXinthe Cape Fear River since June l4-.
DEO/s letter requests that [hemours stop the release of two compounds the Environmental Protection
Agency's analysis has indicated as Nafion byproducts 1 and 2, that were identified at elevated levels in
the company's waste stream. That analysis came about thanks to a new technology and methodology
conducted byspecialists with the EPA National Environmental Research Lab inResearch Triangle Park.
DE{lalso requested Chemours to provide the state agency with a complete inventory, sampling data
and test results for all other chemicals included in the company's waste stream at the Fayetteville plant.
DEQ will review all of the information the state agency has requested as it evaluates Chemours'
application for anew wastewater discharge permit.
Is Chernounsstill discharging these chemicals?
The N.C. Department of Environmental Quality this week urged Chemoursto stop discharging two newly
identified unregulated compounds at its Fayetteville facility and called on the company to provide the
state with a complete inventory of all the chemicals included in its waste stream.
Thanks to the state's efforts, Chemours has stopped discharging GenX to the Cape Fear River.
Is the state going tostop them from discharging these chemicals?
These are unregulated compounds and, as such, are not regulated by any state or the EPA. The state
has requested the company stop discharging the two compounds and hopes that the company does the
right thing and stops discharging.
Until we know more about the health impacts from the Nafion l and Z byproducts, we are asking the
company tostop discharging these compounds immediately and provide the state with information
about all other unregulated chemicals in its waste stream.
Will DEQtake enforcement mnChenmmusfor discharging these chemicals?
DEC\is investigating all aspects ofChemours' wastewater discharge permit and will use the findings of its
investigation to determine any next steps, including any necessary enforcement action.

Like GenX, the potential Nafion byproducts are unregulated chemical compounds and are not included
inthe company's permit. Similar to GenX, the state must have more data about the health effects of the
chemicals before regulations can bedeveloped.
EPA conducted its analysis for Chemours and the Sweeney finished water due to limited resources. ERA
plans to complete the full analysis in the coming weeks, including looking at other sampling sites and
other chemicals included inthe 2U16Sunet.aistudy. The preliminary report focused onthose
chemicals that were expected to be present in the water at concentrations equal to or higher than
GenX. hat dothe peaks inchemicals mean?
EPAprovdedD8IandDHHSm/ithpre|iminaryinhznmadon.Thefedera|agencyinfonnedusthatthey
have not yet produced the full report. Once the report is received by DEQ, it will be posted on the
website at the following link:
The state onAugust 16 2017requested [hemountoprovide the state agency with acomplete
inventory, sampling data and test results for all other chemicals included in the company's waste stream
at the Fayetteville plant. DEQ will review all of the information the state agency has requested as it
considers [hemours' application for a new wastewater discharge permit.
EPA is continuing to work on a comprehensive report that will include non -targeted results at all
locations (including Chemours and Sweeney water treatment plant) during the seven weeks of sampling.
Is the state going to provide an alternate water supply?
Webelieve atthis time the water is safe todrink. Until weknow more about the health impacts from
the potential Nafion 1 and 2 byproducts and out of an abundance of caution, we are asking the company
to stop discharging these compounds immediately and provide the state with information about all
other unregulated chemicals in its waste stream.
As part of its investigation, DEQ is analyzing water samples collected in 14 monitoring wells on
[hemours' property in Fayetteville. The results of that testing will inform decision making about any
testing ofprivate wells inthe nearby area.

|swell water safe todrink inthese areas?
.VVeare making arrangements tosample private wells closest tothe [hemoursfacility todetermine if
there is any groundwater contamination from the facility that might affect private vve||s in the area.
Do you plan to sample wells around the Chenmours facility?
As part ofits investigation, DEC\is analyzing water samples collected in 14 monitoring wells on
[hemours' property in Fayetteville. The results of that testing will inform decision making about any
testing ofprivate wells inthe nearby area.
What dothe groundwater results show atthe ChernoursfacUity?
Results are anticipated in 2'3vveeks.