HomeMy WebLinkAboutDEQ-CFW_00024879From: Johnson, Chris [/O=EXCHANGELABS/OU=[XCHANGEADMINISTRATIVE GROUP
(FYD|BOHF2]SPDLT)/CN=REOP|ENTS/CN=147G89]FAF]749D2BA3E82OE14EDCEE2'OOHNSON10]
Sent: 8/17/I0I75:05:07PW1
To: 3trynar, Mark[StrynacMark@epa.gov]
CC: Culpepper, Linda [/o=ExchangeLabs/ou=ExchanXeAdministrative Group
(FYD|BOHFI]3PD[n/cn=Kedpients/cn=7]d475cbae324aZ9687eI7I1dc9a79c5-|mcu|pepper]
Subject: RE: Region 4 lab
That's great. I am preparing to head over there now. Thanks, Mark.
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N[DEQ-DWR
Water Sciences Section
correspondpncp w;th this Pmai� addrpss is subject to the. North Caroijna Pubiic Records Law and -nay bp disciospd to third partips.
From: Strynar, Mark [mailto:Strynar.Mark@epa.gov]
Sent: Thursday, August 17, 2017 12:34 PM
To: Johnson, Chris <chris.johnson@ncdenr.gov>
Subject: RE: Region 4 lab
We just wanted to let you know what we are providing you today for proficiency testing. |amunsure how much you
want to share with the contract labs. Nitric acid was NOT added to any sample prepared here.
(lab blank)
(3) replicates labeled {l[A-1toQ[A-3: containing 1.0 LofD|water in 1 L HDPE bottle (lab blank)
(low spike)
(3) replicates labeled OC8'1 to [iCB-3: containing 1.0 Lof 0 water in 1 L HDPE bottle with lSU no/LofGenX (and 4
associated PFE[As)and 1SOno/LofaWellington mixed PFASstandard (PFA[K4XAC4~[1UperOuorocarboxy|ioacids,
PF8S,PFHxSand PFOS)
(high spike)
(3) replicates labeled CUC[-lto {l[[']: containing 1.0 Lof D| water in 1 L HDPE bottle with 1000 no/LofGenX (and 4
associated PFECAs)and lUUOnu/LofaWellington mixed PFAS standard (PFACK4XAC4'ClOperOuorocarboxy|icacids,
PFBS, PFHxS and PFOS)
([FRwated
(3)replicates labeled {l[D-1to{l[D'3:containing l.ULofwater consisting of: [the [hemouooutfaUOOZfrom S/1S'l7,
the Cape Fear River water upstream of Chemours, DI water in the ration 1:2:1] mixed in a large container and aliquoted
into 3separate bottles.
A replicate of the above sample (QCD-4) for EPA analysis was retained for comparison to contract lab values which will
beanalyzed internally.
Mark
From: Johnson, Chris
Sent: Wednesday, August 16,2Ol75:32PK8
To: Strynar, Mark
Cc: Culpepper, Linda
Subject: Region 4lab
Mark, who would be our contact for the Region 4 laboratory? Thanks.
Chris Johnson
Environmental Program Supervisor
Water Sciences Section / Organic Chemistry Branch
North Carolina Department ufEnvironmental Quality
Division of Water Resources
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