DEQ-CFW_00010649

From: 8arber, Jim [/O=EXCHANGELA8S/OU=EXCHANGEAD[W|N|5TRATVE GROUP
(FYD|BOHF2]SPDLT)/CN=REOP|ENTS/CN=4717O5C7376O4A1D83OEZ7B13409FA3]'[UBARBER]
Sent: 7/26/I0I75:30:I4PW1
To: Ri#aard,Jon [/b=ExzhanXeLabs/ou=ExchanXeAdministrative Group
(FYD|8OHFZ33PDO)/cn=Redpient$cn=d1eeZ67742774Qcf995eac3d56a4eZ1e-jrrisgaard]
Subject: RE: DuPont Fayetteville Works - River Water Sediment -PFOAResults
Attachments Chemours formerly DuPont Fayetteville Works; DuPont Class A Land App sites.jpg; DuPont Chemours Cumberland
County 6|Smap.docx;DuPont Chemours8|adenG|3mapdocx
3nn;
Left
you a voice message a few minutes ago. Here's a recent email concerning the DuPont class ^x'
material relative to permit renewal and a map with of the locations that DuPont land applied the class x
residual in 2012 (Basin #I} and the proposed locations for 2016/20I7 land application event(s) for basin
#2. Both sites are on DuPont property located in Cumberland county (the blueish line is the county line).
Also attached are Gzs maps from Cumberland and aladen to indicate the property boundaries for the DuPont
site.
If you need anything else give me a call or email.
3im Barber
Environmental Engineer
wcosQ-owx-wQxo
Fayetteville Regional office
910-433-3340 voice
910-486-0707 fax
[e-mail]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law
and may be disclosed to third parties.
o Go Green! print this email only when necessary. Thank you for helping mcosmm be environmentally
responsible.
^*****^*^******^*^*
---original message ---
prom: nisgaard' zon
Sent: Wednesday, 3uly 26, 20I7 I2:08 Pm
TO: Barber, 3im <[e-mail],
subject: rw: DuPont Fayetteville works -- River water sediment -- PpoA Results
zim'
Take a look at this old email chain and attached email. Do you recall how or if DuPont disposed on the
river sediment?
KM
3on xisgaard - section chief
Water Quality Regional Operations Section Department of Environmental Quality
919-807-5458
http://deq.nc.gov/abnut/divisions/water-resources
1636 mail service center
Raleigh, mc 27699-1636
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may
be disclosed to third parties.
---original message ---
prom: nisgaard, 3on
Sent: Monday, zuly 24, 2017 3:29 pm
To: Zimmerman, 3ay <[e-mail],
subject: pw: DuPont Fayetteville works -- River water sediment -- pro^ Results
OEQ-CFVV_00010649

A deep search of emails and z only found Z hits so far.
z found a 6/16/20I5 email (attached) from Tom aelnick that references a meeting with Dupont. Interesting
that the email was concerning Aurouco panels.
The second email includes the following text and the attached email. It is concerning proA's in some
lagoon sediments back in 2011. z was in the Non -discharge program at the time and was fielding questions
on whether the material was suitable for land application. The email does not indicate if the material
was land applied. z will check with 3im in pxo to see what he remembers.
3on
zon njsgaard — section chief
Water Quality Regional Operations Section Department of Environmental Quality
9I9-807-6458
http://deq.nc.gov/about/divisinns/*ater-resources
1636 mail service center
Raleigh, mc 27699-1636
Email correspondence to and from this address is subject to the North Carolina public Records Law and may
be disclosed to third parties.
---original message -----
From: Barber' zim
Sent: Tuesday, February 15, 2011 2:15 pm
TO: [e-mail]
Cc: Hardee, Ed xed.hardeeNncdenr.gov^; nisgaard, 3nn <[e-mail]^
subject: rw: DuPont Fayetteville works -- River water sediment -- PpuA Results
---original message -----
From: Barber, zim
Sent: Friday, September 17, 2010 I0:13 mw
To: 'Michael s 3ohnson'
Cc: Hardee, Ed; Barnhardt, Art
subject: FW: DuPont Fayetteville Works -- River Water Sediment -- PFOA Results
Mike�
,
Thanks for the follow up information concerning the river sediment to be removed from the basin at
DuPont. Based on the information provided (TcLp data and spLp data) the sediment in the basin would
appear to meet the class x residual standards. Below is a link to the owQ website for the appropriate
application template to use in preparing DuPont's application. use form oxs 08-07 (Distribution of
Residual solids) for a Class A material.
http://portal.ncdenr.nrg/web/wq/aps/lau/applicatiuns
Once you prepare the application consistent with the instructions provided with the application template
and provide the necessary documentation with respect to samples taken; provide a detailed site map with
storage area (and approx. area needed - i.e. acres of mined area for storage) and supplement with
correspondence received from Land Quality concerning storing the sediment in the on -site mine area(s)
under their jurisdiction.
As we discussed a couple of weeks ago' provide estimates for the length of time the sediment will be
stored in the mine area(s) prior to reuse. The Division wants to see progress on the use of this material
verses indefinitely being stored in the mine area. During internal discussions with owQ staff, a 24 month
timeframe was mentioned as a maximum storage time. I'm sure some additional discussion will take place'
during the review process' based on the timeframes proposed.
Provide groundwater information {mw maps with groundwater depth relative to land surface or seasonal high
groundwater contour maps with land surface contours) for the plant site will be helpful in understanding
the relationship between groundwater and activities proposed at the plant site. Hopefully historic
groundwater monitoring data exists that will provide a understanding of highest measured groundwater
depths at the plant site (with respect to past weather patterns and not recent drought conditions) to
understand groundwater trends at the site.
As you prepare the application; if you have any questions' don't hesitate to call me {45]-3]40) or Ed
Hardee (919-7I5-5I89) for assistance. Questions relating to long term storage of the river sediment
should be directed to znn xisgaard at 919-715-6I67 and the application should be sent to his attention
I'm attaching a recent email from owQ to owm relative to the management of the river sediment. The email
has traffic between DWM and DWQ. Also, you will notice that 3on Risgaard has a issue with the material
OEQ-CFVV_00010650

being used as a fill material verses being land applied like a regular wwtp sludge. I'm not sure if zun
understands that the material you are presenting will meet class x standards. when z spoke with 3on and
Ed several weeks/month ago, analytical data was not available at that time. z suggest that you contact
zon to get a clear direction as to how the Division will accept the use of the river sediment/alum
material.
sorry for the confusion. Hopefully a consensus can be reached for the long term management of the
material, so we aren't recreating the wheel when it comes time to excavate the other storage basin in the
near future.
3im Barber
---original message ---
prom: Michael s 3ohnson [mailto:michael.s.3ohnson0usA.dupont.com]
Sent: Thursday, 3uly 29, 2010 12:05 nw
To: Barber, zim; Hardee, Ed
subject: DuPont Fayetteville works — River water Sediment — ppox Results
Per your request, here are the ppox results of the seven samples taken from our river water sediment
basin.
The lab ran the synthetic Precipitation Leaching procedure (sPLP; cpx
SW-846 method lJlZ) in which one part by weight of the sediment is mixed with twenty parts by weight of
an extraction liquid, agitated for 18 hours, and then filtered, with the filtrate being analyzed for the
PpoA.
You will see that the seven samples ranged from <0.0I4 ug/L rpoA (i.e. less than quantification level) to
0.017 ug/L ppox. so all seven samples were around the analytical method's quantification level.
FYI: per the lab's documentation' the analytical quantification level is determined by multiplying the
method detection level (moL) by five.
To convert the spLp results to total PpuA in the sediment' one can multiple the spLp result by 20 to
change from ug/L in the leachate to ug/kg of dry sediment.
Therefore the dry sediment would have been in the range of <0.29 ug/kg Prox to 0.34 ug/kg PpuA.
Let me know if you need any other information. I will be on vacation tomorrow (07/30) and the week of
08/02, so z will not be able to respond to your messages until the week of 08/09.
mike
Michael E. 3nhnson
Environmental Manager
DuPont company
Fayetteville works
{910} 678-1I55
(see attached file: 2010 sediment Basin PFOA Results.pdf)
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OEQ-CFVV_00010651