DEQ-CFW_00053312

From: Holman, Sheila [/D=EXCHANGELABS/OU=EXCHANGEADMINISTRATIVE GROUP
(FYD|BOHF2]SPDLT)/CN=REOP|ENTS/CN=94A]F69674D34B7G9B3BD834A97105C5-SCHOLN1AN]
Sent: 7/22/I0I711:08:19AW1
To: Benton, Mark [/b=ExchanXeLabs/ou=[xchangeAdministrative Group
(FYD|8OHFZ33PDO)/cn=Redpient$cn=f464O49Ode444ee7a406Q487789Ie3f1'mbenton2]
Subject: Re: CFPUA6enXLevels
Here is the definition of stream flow:
Stream flow or discharge is the volume of water that moves through a specific point in a stream. during a
given period oftime.
| provided to[FPUAthe mean discharge, orstream flow, for the days they measured concentrations of
GenX. If the stream flow is high, there is a greater volume of water for any pollutant to mix in, so the
concentration ofthe pollutant islower. |fthe stream flow islow, there isless volume ofwater for the
pollutant tomix in, sothe concentration ishigher. Let rneknow ifthis does not make sense.
Sheila Holman
NCDEQ
1601 Mail Service Center
Email correspondence to and from this address iasubject to the North Carolina Public Records Law and may be
disclosed to third parties unless the content is exempt by statue or other regulation.
From: Benton, Mark
To: Holman, Sheila
Subject: RE: CFPUA GenX Levels
am
Adunnbquestion--is"rkxerOoxv"thesanoething as"river |eve|"? |fso, | would expect concentration levels to
be higher.
am
OEQ-CFVV_00053312

Ser� tbyMark T.Be*twi,Deputy Secretary for Health Services
N[Department ofHeabh &HumanServices
mark.6entmn0p6hhs.nc.0ov
-------- Original nnessage----
Fronn:"Ho|nnan,Shei|a"<shei|a.ho|[e-mail]>
Date: 7/71/177:07 PM ((SMT-05:00}
To: Jim F|echtner^[e-mail]>,"Benton,Mark" <[e-mail]>,"Sta|ey,Danny"
<Danny.Sta|[e-mail]>,"K1oone,Zack" <[e-mail]>,"Gnegson,Jim"
[e-mail]>
Co: Michael Brown <K4ichae|.Brown @cfpua.org>, Linda K4i|es^nni|esfirnn@gnnai|.cono>, George House
<[e-mail]>
Subject: RE: CFPUAGenXLevels
lam attaching the analysisfor the concentrations compared to the mean river flow. There does seem to be an
inverse relationship, in that when the river flow decreases, the GenX concentration increases.
Following is a statement on some of the factors that may cause some of the variability in the data.
OEQ-CFVV_00053313

A number of factors can influence sampling concentrations, including differences in rainfall and river flows. But that
variability in such low concentrations is going to be greater and it's important to put such small concentrations into
perspective.
Let me know if you need anything else. I will call you if I hear back from EPA.
61mr.
Sheila Holman
Assistant Secretary for the Environment
Imm
1601 Mail Service Center
Raleigh, NC 27699-1601
Phone/Fax: [phone]
deq, -n-c-.- go-v
Sheila.holman@.ncdenr.gov
From: Jim Flechtner [mailto:[e-mail]]
Sent: Friday, July 21, 2017 4:45 PM
To: Benton, Mark <[e-mail]>; Staley, Danny <Danny. [e-mail]>; Moore, Zack
<[e-mail]>; Holman, Sheila <[e-mail]>; Gregson, Jim
<j im. gregson@ncdenr. gov>
Cc: Michael Brown <[e-mail]>; Linda Miles <[e-mail]>; George House
<[e-mail]>
Subject: CFPUA GenX Levels
CFPUA received its latest batch of GenX test results. The levels are shown below. CFPUA needs immediate
guidance from NCDHHS and NCDEQ concerning these results and proper messages to our customers.
Sweeney WTP GenX Data (ng/L) -MRIL 2 ng/]L
Date Raw Post
6/26/17 149 156
DEQ-CFW-00053314

6/28/17
6/30/17
87.5
68.6
120
89.5
7/3/17
7/5/17
55.6
93.9
55.4
87.4
7/7/17
136
132
7/10/17
7/12/17
102
93.0
145
122
7/14/17
114
1131
7/15/17
194
127
7/16/17
336
250
7/17/17
7/18/17
166
128
286
185
James R. Fleclitner, PE
Exectifive Director
Cape Fear Public Utilih, Authoritq,
235 Govraiment Center Drive
Wilmington, NC 28403
910-332-6669
hm.Flechtnevv� cfptm,org
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DEQ-CFW-00053315