Document Z4eY131QbOkoOLg9VZLqX0N0d
GenX in the Cape Fear River Basin resentation to ECOS - ERA PFAS Call
October 30, 2017
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Latest Cape Fear River Sampling Data
Chemours Outfall 002 (ppt)
120.00 ........................................................................................................................................................
PFBA " PFD
O-Pba 3FBS
PPHxA PFHxS
PFHpA PFOS
PFOA GenX
PNA ^FOA+PFOS
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Drinking Water Samples
International Paper
Cape Fear Public Utility
Pender County
NW Brunswick County
PFOA PFOS PFOA+PFOS GenX
PFOA PFOS PFOA+PFOS GenX
PFOA PFOS PFOA+PFOS GenX
PFOA PFOS PFOA+PFos
9/14/2017 3.65
1.64 (J) 5.29 (J)
30.2
Results (ppt)
9 /2 1 /2 0 1 7 2.97
1.21 (J) 4.18 (J)
33.4
9 /2 8 /2 0 1 7 3.74
1.40 (J) 5.14 (J)
35.3
15.1 17.2 32.3
33.2
10.1 17.3 27.4
36.1
12.1 14.5 26.6
28.9
12.2 0.544 (J) 4.36 (J)
40.4
9.98 7.78
ie.o
2.74 1.02 (J) 3.76 (J)
41.0
7.96 5.98 15.7
2.87 0.977 (J) 3.85 (J)
42.4
8.16 7.78
8.2
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Historie Comparison
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DEQ Sampling
!rnmwrp
lessen BluSs
i :J W'-A
al Fam i~ i
P e r n i C o . 42t WiP
CFFU~A5R & r
w? B e Well No, 11
Sierra
NDCA
Tier 10
Process area sampling at Chemours. Weekly composite sampling at the Chemours NPDES outfall 002. Weekly sampling of finished drinking downstream of the Chemours facility.
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Private Well Sampling Results
iwills stupiti!: Total # wells with eiceedatce of the GeriX HC DHH5 provisional health goal; Total w ilts reported as ooRletecfict |ND):
Ili 4i |3i% | 3$ (33%)
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Chemours Sampling Map (Northern Area)
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Chemours Sampling Map (Central Area)
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Chemours Sampling Map (Southern Area
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Chemours reported air emissions (pounds per year)
C3 dimer acid fluoride
500 539 545 669 591
C3 dimer acid (GenX)
1
3
4
3
3
C3 dimer acid ammonium salt 1
3
3
2
2
All data based on chemical process computational model.
Air emission data for other emerging contaminants has been received and is being analyzed by staff.
Source information, emissions data, and stack parameters needed to conduct air dispersion modeling has been received.
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Stack Testing
DAQ and Chemours discussing/evaluating appropriate methods No "off the shelf" method. Developing test methods that will
capture and measure the contaminants of interest
Chemours has indicated that they will test to better quantify air emissions as soon as measurement issues are resolved.
Ambient Air Quality Monitoring
DAQ and EPA discussing/evaluating appropriate methods, equipment and lab capabilities
Do the contaminants act as a gas or a particle? What analytical detection limits are possible?
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RECAP ACTIVITIES
Monitoring the Facility for surface water and groundwater and Air emissions modeling Continuing to delineate off-site groundwater contamination
and its potential sources Reviewing private well water data from Chemours and DEQ for
data analysis, data QC, HREs, planning and mapping Evaluating chemical pathways (chemicals created and transformed) Determine future sampling needs Continuing to host community meetings Engaging Federal/State and International partners
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Questions?
Sheila I him an Assistant Secretary
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