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4 T -- i C G Chambers Works Deepwater, NJ 08023 Attachment A Chambers Works Deepwater, NJ 08023 Comments On The Water Samples Sent To Exygen and Axys Analytical Services Ltd. FAcoonmuarlpyaotqiucunaedlosSu. esTrshvarimceeepsdlLeisftf,de.arfetornirtptahbnelaalanynktai,clayantlidcmaaeltfdhieeotlddesrbmwlaiennraketiwuosneerdoe,fsttewhniortttbeoeynEExdxyiyfgfgeeenrneRnRteepsseeeraafrlrcuchohraiannndadtteoodnAexbyysAxys AannyalgyotivcearlnSmeernvtiaclesa.ge(nNcoyteo:rTtehsetriengisonrogasntaiznadtaiordn.a)nTalhyetirceaslumltestfhoordpfeorfrltuhoirsomocetaasnuoraetmeefnrotmaptphreosveed by measurements are given in the table below. TaSAaambv33l35TeFper0000BBla0000e1LgL0130.neKK5830uPo6119--m1135e08frtbwfleouromrEeoxaoysn11cnnnug27dtdddrea31bennmo1eanttEesxc(3yo19nnnn6gn98dddd.e0c7ne,3n28tr.9a)t.iA3on7nn5nxn.ddd7dy8(sang/L) (ppt) 5Not detected. TtapanihnnneohearatnefhlltvlyyhefuaittioreelRrsitssrdetio.soaeEdThtnroxeahfddyauopnegsmraacepptlanehyeentertrmhoe.fodilsecudatE(oth"aRaxroc.oiyridsTdbeghspu(heaE.otenaTexrsntiteyhesoageddnileca.poh)n,t.rweapor1Teace)drrehfueeislsevsusnileRontoolorogiotospsduhpMeieseanlateyngembttrbhlaameeanotnsihdofneeooiewdc1rd,troshepaihnsgeneonudraLufollldpaOutdtuiovofQbbfrareeloyliirihcncedraeeonaMtxpnttieaoosmedninrtdothefiretionoechrdgrpe,odoappd1nreutt"iyrerosfepdoldsdouttfiesoioftmetfrheesodear.rhemtesteeneuisptnrltmdffeaurenioarrno-lmielcvicotefthndohoituarrfattrrieonuoemisnfnegda gIMsnerdoneusuthisntotidrvdyiwt)2y.a,Titserherte,hpedrmormidenutekhctiohinbdogidlvwitauyalsi,tudeaaarnl)tli.dyoTsnuthasinebedcimllibuteyydt.ehEsoxcdyrigisteevnriaatloitdhdaaettetemdrmaucsictnoberedpmienregfltutfooorUroaoScccFtuaDnraAocayct,eripitnreerwciaias(tiGeornu,(ivdsieazln.e,ccetivfoitry, TvvCqsouhi.glaeuCnvmA,tiyig.txe)a5y,tc0insooommnnccmeaeltnenhadCtorn8tad-h)tu,ieiospadnnd(advistfstafd.eeipaerfcelf(ueqn1truti2eoif5nsrn:iot1twmeiolviuntsbht.wioo8atin:hn14dsE)0,oo%xalwyvdgemsineffetnfotearhmrnaesdeinngtotghnlsroaoasldodrsabilcueeicnntniutottmhpnfora)uo,rtlgtatahhrtdaeieomifAsnfo.exalrTyiredeshn-aepmt lhasiennaotstahedeloryienfdtfxiaecultrarsesaletncscatton.iaodludnamirf(dfmnseri(fxe7one5rdt mbmed udbSseeinitcnecorgemmttwehinseoeardsve.ipagioAnlraitfbreiolcdeualnnaedntvld-yerlovdsbaiafilfrnideersaiettnuenddat y)alnoaisanwldbyqettiuihcnaeagnlAtdmixteaeysttisihgomonndeerdsat,hntiohgndaett.e(wr9Ula8ilnblttooiilrnat1cht9loue0rdyrpeoaputnthn)dedam-nnredoewbtshiinoEndcxsetyvugtadheryeinailbmsaibcleiootthrymaomtpdolure(istweets,hbaieetrne it r Ms. Eileen Murphy May 10,2006 Attachment A Page 2 of2 will not known whether the perfluorooctanoate data reported from Axys and Exygen are statistically the same or different from each other. Ncrceooosnnutcceleettsnnht(tarrvataattaniioorLenncseoeerfneuatpwso7etr.unt8ed-edyptpasabbhl.oo)a.vwqeuTe.edhoGitushesalnetpeve1rear2lflll(ouy7fo.t83rho3epoeplcoxbtawp)neieosrria4etth1neectseoctdao1nnl3adc7baeorntdirtmarwateoteisroriehensi,ngteohhnteegarmabignloeecrdteooindnocibfedftneiacttireunarltmtaiociitcnnieistnphtgtoaantbohltbeehteain good precision and accuracy (US EPA, Compendium). RdRi1ne5eeH0pfBe8ouor(rme2etrn0#KaS,0cn.A.Ce5vRsa)n0a.nid7nsd0hGL/aE0,.en5eJLv,.uiiFOnwroldcaensthnotme,rborAetemynr.,,t,KaR2"la01MWr0sr5tmail.Wtlarieinoc,,erWlAsd"..w,BZRiduaIecmVkImO,nFti-et.N,rMleBato.bhrvoeararnlandatnoiB,draaysvnSIednltT,ust.dIi.tyIusveotaemnnfuPdoreerarr,FfAVliusnehoaeerlni.rni,CeaCshte.eRdmKeC.ws,eo7aamd7rci,pj1hko5,,u0Jn3.d- ""GCoumidpanencedifuomr IMndeuthstoryd:TBOio-a1n5"a,lyUtiScaElPMAe,th2onddeVdiatliiodna,ti1o1n."3,.2U, SJaFnDuaAry, M19a9y9.2001. 6 Chambers Works Deepwater, NJ 08023 Attachment B -Precise Research. \ Proven Results. Analytical Report Fiuqrochemical Characterization of Aqueous Samples . Chambers Works C8 Sampling 2/06 Exygeh Research Laboratory Report No. L0008093 Testing Laboratory , Exygen Research , 3058 Research Drive State College, PA 16801 Requester Michael D. Aucoin URS Corporation Barley Mill Plaza Bldg 19 Robm 2118 Lancaster Pike nd Rt 141 Wilmington, DE' ,19805 PAGE 1 0 F 5 F: 81 4.2 7 2 .1 0 1 9 exygen.com RESEARCH , Precise R esearch. P roven Results. Ill Analytical Results Chambers Works C8 Sampling 2/06 DuPont Sample Identification APFO (ng/L) PFOA (ng/L) CW K-G-3003310 \ CW K-G-3003310 (laboratory duplicate) CW K-G-3000563 \ CWK-G-3000563 (laboratory'duplicate) CW K-G-3001815 \ CWK-G-3001815 (laboratory duplicate) CW K-G-3000098 \ CW K-G-3000098 (laboratory duplicate) CWK-K-FBLK-1 \ C W K-K-TBLK-1 ,\ ' 102 104 ND ND 198 . 197 ND ND ND ND 97.6 99.6 ND ND 190 189 ND ND ND ND Lim it of Detection (LOD) for the procedure,is approximately 1.2 ng/L Limit of Quantitation (LOQ) for the procedures 6.0 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the L'QD and LOQ. Result is not quantifiable. ND<LOD<NQ<LOQ \ 0006 <\ Jm\30STtk3058 Research Drive State College, PA 16 8 0 1 , USA J : 814.272.1039 F: 814.231.1580 exygen.com n R E S E'A R C H Precise Research. -, Proven Results. m. Analytical Result? Chambers Works C8 Sampling 2/06 DuPont Sample Identification APFO (ng/L) PFOA (ng/L) C W K-G -3003310 C W K-G -3000563 C W K-G -3001815 C W K-G -3000098 CWK-K-FBLK-1 CWK-K-TBLK-1 \ \ \ \ \ \ . Limit of Detection (LOD) for the procedure is approximately 1.2 ng/L 103 ND 198 ND ND ND 98.6 ND 190 ND ND ND : Lim it o f Quantitation (LOQ) fo r the procedure is 6.0 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND<LOD<NQ<LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater tharl SX LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported, li the RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ-, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference. is greater than LOQ, the higher value is reported. \ 0007 (O *^ ^ 3 0 5 8 Research D rive m S ta te College, PA 16801, USA . ^ L r : 814.272.1039 , m F : 814.231.1580 exygen.com RESEARCH . Precis Research. Proven Resuis. Exygen Contact: I M a rt fm v n trrm A w 1 Address: ............... ....... .................................................. City, State, ZIP: 1 Attention: _ _ P ho n e # :____ ?a2' 1 Fax#: Email: _ _ _ _ _ _ ------------------------------------------------- I 2. j j ,Study/Job # : JT -- Signature/Date: __ ____________________________ 1 Printed Name: -- -------------------------------------------------- Sample Submittal P le a s e fa x th is fo r m b e fo r e s e n d in g s a m p le s . Please se n d sa m p le s to E xyg e n 's s h ip p in g a n d re c e iv in g a d d re ss: 3 0 4 8 R esearch D riv e , S ta te C o lle g e , PA 1 6 801 T: 8 1 4 .2 7 2 .1 0 3 9 F: 8 1 4 .2 7 2 .1 0 1 9 Turnaround tim e (TAT) requirements: Results Due Date:____________________ Preliminary Results Format: Verbal Email Fax Report Due Date:_______________________________ Storage conditions Room temperature Refrigerator Freezer Ultra-Low freezer Desiccated jp Lighting required Stability (C//oRH): # HMt___ Stability time period: Safety information Special handling:________ MSDS attached Controlled substance: HAZARDS: Pleasefill in the diamond H M IS /N FP A (0 -4 ) if appropriate I ......................... C lie n t ID # . D e s c rip tio n Lot/ A m t. S ent/ Control # W eight # o t M atrix Bottles Date & T e s ts R e q u este d I 1 1Z % < J o o T fT f^ I 2 C W ' - ' w W 3 - w - jp - 6 .' 3 $ rtrt~ I 4 JoffafC rJ i5 S c o im i. 6 .. w K - -S n o o M f N t O ?T&>( * - SAM PLE ? "Am AiV t 4 h . *% % z. * zU z t. zf f c -h ) -fW r I 3 L ...... m M , f l y.... I /V M f Th W Z T iW H im t<t9 tr ty . fa fMW *kt X ! /Vfcfc/t fo 7.7 7-1 7 ^ K i ` (p -^T 0 t l l T ' ------ NM u4 Tt " ""C a yi' or tvj ,. I8 rt W fC U - H<3> /)?* U 9 & ' ' ------ k! ,r*A TT In 10 T i l t : - 1 _______ 1 z / 'L itn iC u _____ / < r w 8.0 ....... .s ic -1------------ m ;^ > t err RESEARCH Precise Research. \ P roven Results. Analytical Report Fluqrochemical Characterization of Aqueous Samples Chambers Works PWS Sampling 02/06 Exygen Research Laboratory Report No. L0007648 Testing Laboratory .. Exygen Research , 3058 Research Drive late College, PA 16801 Requester Michael D. Aucoin URS Corporation Barley Mill Plaza Bldg 19 Room 2118 Lancaster Pike and Rt 141 Wilmington, DE=\19805 PAGE 10 F 5 l J 3 0350E58 Research Drive State College, PA 16801, USA VT: 800.281.3219 ' R 81 4.27 2.10 19 exygen.com Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -3003310 \ CWK-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory duplicate) C W K -G -3001815 \ CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) CWK-K-FBLK-1 \ C W K-K-TBLK-1 \ C4 acid (ng/mL) ND ND ND ND ND ND ND ND ND ND Lim it of Detection (LOD) for the procedure is approximately 7.2 ng/mL Lim it of Quantitation (LOQ) fo r the procedure is 36 ng/mL ND - Compound not detected \ NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ I# JX^ 3058 Research Drive ^ r m s ta t e College, PA 1 6 8 0 1 , USA ^ T : 814.272.1039 m F : 814.231.1580 exygen.com RESEARCH i. Precse Research. ' . Proven Results. Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -3003310 C W K-G -3000563 C W K-G -3001815 C W K-G -5000098 CWK-K-FBLK-1 CWK-K-TBLK-1 C4 acid (ng/mL) ND ND ND ND ND ND Limit of Detection (LOD) fo r the procedure is approximately 7.2 ng/mL Lim it of Quantitation (LOQ) fo r the procedure is 36 ng/mL ND - Compound not detected \ NQ - Compound detected at a level between the. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported, if the. RPD is greater than 20, the higher value is reported. ,/ \ if the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference greater than LOQ, the higher value is reported. \ ,3058 Research D rive State College, PA 1 6 8 0 1 , USA J : 814.272.1039 R 814.231.1580 exygen.com /r Precise Research. \ Proven Results. Analytical Resulta Chambers Works PWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 \ CW K-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory duplicate) C W K-G -3001815 \ CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) CWK-K-FBLK-1 C W K-K-TBLK-1 C5 acid (ng/mL) ND ND ND ND ND ND ND ND ND ND Lim it o f Detection (LOD) for the procedure if approximately 0.28 ng/mL Lim it o f Quantitation (LOQ) fo r the procedure i f 1.4 ng/mL ND - Compound not detected \ NQ - Compound detected at a level between the LCD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ exygen.com RESE Precise Research. Proven Results. RC H Analytical ResuItiCham bers Works PWS Sampling 2/06 D uPont Sam ple Id e n tifica tio n C W K-G -3003310 C W K-G -3000563 C W K-G -3001815 C W K-G -5000098 C W K -K -FB LK -1 C W K -K -TB LK -1 \ \ \ \ \ \ C5 acid {ng/m L) ND ND ND ND ND ND Lim it o f Detection (LOD) for the procedure is approximately 0.28 ng/mL Lim it of Quantitation (LOQ) fo r the procedure is 1.4 ng/mL ND - Compound not detected \ NQ - Compound detected at a level between the. LOD and LOQ. Result is not quantifiable. . ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported, if the. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported, if the absolute difference .greater than LOQ, the higher value is reported. , E L ,33O05588 Research Drive VState College, PA 16801, USA J : 814.272.1039 F: 814.231.1580 exygen.com il Analytical Results Chambers Wortes PWS Sampling 2/06 DuPont Sample Identification C W K -G -3003310 \ CW K-G-3003310 (laboratory duplicate) C W K -G -3000563 \ CW K-G-3000563 (laboratory duplicate) CW K-G-3001815 \ CW K-G-3001815 (laboratory duplicate) CW K-G-5000098 \ CW K-G-5000098 (laboratory duplicate) C W K -K -FB LK -1 \ C W K-K-TBLK-1 \ C6 acid (ng/L) 89.7 96.7 ND ND 150 149 ND ND ND ND Lim it of Detection (LOD) for the procedure }? approximately 15.8 ng/L Lim it o f Quantitation (LOQ) fo r the procedure rs 79.1 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LCiQ and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ X .3058 Research D rive \/ m s tSatalte College, PA 16 801, USA J : 814.272.1039 F; 8 1 4 3 31.15 80 exygen.com en RESEARCH , Precise Research. \ Proven Results. Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -3003310 C W K-G -3000563 C W K-G -3001815 C W K-G -5000098 CWK-K-FBLK-1 CWK-K-TBLK-1 C6 acid (ng/L) 93.2 ND 150 ND ND ND Lim it o f Detection (LOD) for the procedure is approximately 15.8 ng/L Limit o f Quantitation (LOQ) for the procedure is 79.1 ng/L ND - Compound not detected \ NQ - Compound detected at a level between th. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ , Results are calculated according to the following criteria if the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If th. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference .greater than LOQ, the higher value is reported. \ exygen.com II RESEARCH . Precise Research. Proven Results. Analytical Resulta Chambers Works PWS Sampling 2/06 D uPont Sam ple Id e n tifica tio n C W K-G -3003310 \ CW K-G-3003310 (laboratory duplicate) CW K-G-3000563 \ CWK-G-3000563 (laboratory duplicate) C W K-G -3001815 \ CW K-G-3001815 (laboratory duplicate) C W K -G -5000098 \ CWK-G-5000098 (laboratory duplicate) CWK-K-FBLK-1 \ CWK-K-TBLK-1 \ C7 acid (ng/L) NQ NQ ND ND 86.9 73.8 ND ND ND ND Lim it of Detection (LOD) for the procedure is approximately 12.2 ng/L Lim it of Quantitation (LOQ) fo r the procedure is 61.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ 3 0 5 8 Research Drive State College, PA 16801, USA I : 814.272.1039 F: 814.231.1580 exygen.com RESEARCH kPrecise Research. P roven Results. Analytical Results .Chambers Works PWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 CW K-G-3000563 C W K -G -30018 1 5 C W K -G -5000098 C W K-K-FBLK-1 C W K-K-TBLK-1 . \ \ \ . \ C7 acid (ng/L) NQ ND 80.4 ND ND ND Lim it o f Detection (LOD) for the procedure is approxim ately 12.2 ng/L Lim it o f Quantitation (LOQ) for the procedure is 61.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between th. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If th RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference is-.greater than LOQ, the higher value is reported. \ .3058 Research Drive X *WS.Statafte College, PA 16801, USA .T: 814.272.1039 V R 814.231.1580 exygen.com Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -3003310 \ CWK-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory'duplicate) CW K-G-3001815 \ CW K-G-3001815 (laboratory duplicate) C W K -G -5000098 \ CWK-G-5000098 (laboratory duplicate) C W K-K-FBLK-1 \ C W K -K -TB LK -1 \ APFO (ng/L) 124 131 ND ND 187 169 ND ND ND NQ PFOA (ng/L) 119 126 ND ND 180 162 ND ND ND NQ Lim it o f Detection (LOD) fo r the procedure is approximately 2.3 ng/L Lim it o f Quantitation (LOQ) for the procedure is 12 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LdD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ V ^ m 3 0 5 8 Research Drive* * m s ta t e College, PA 1 6 8 0 1 , USA 81 7 2 . 1 039 m F : 814.231.1580 exygen.com RESEARCH Precise R esearch. \ Proven Results, A nalytical R esult,C ham bers W orks PWS Sam pling 2/06 D uPont Sample Id e n tific a tio n C W K-G -3003310 CWK-G-30Q0563 C W K-G -3001815 C W K-G -5000098 CWK-K-FBLK-1 CWK-K-TBLK-1 \ \ \ \ \ \ APFO (ng/L) 128 ND 178 ND ND NQ PFOA (ng/L) 123 ND 171 ND ND NQ Lim it of Detection (LOD) fo r the procedure is approximately 2.3 ng/L Lim it of Quantitation (LOQ) for the procedure is 12 ng/L ND - Compound not detected \ NQ - Compound detected at a level between th, LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria if the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If th. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference -..greater than LOQ, the higher value is reported. , 3 \-Jm3sL30tS05a5ta8iteRCeoselleargceh, D rive PA 16 801, USA ,T: 814.272.1039 R 814.231.1580 exygen.com RESEARCH .. Precise R esearch. Proven Results. Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Ideiitification C W K-G -3003310 \ CWK-G-3003310 (laboratory duplicate) C W K -G -3000563 \ CWK-G-3000563 (laboratory'duplicate) C W K-G -3001815 \ CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) C W K-K-FBLK-1 \ C W K-K-TBLK-1 \ C9 acid (ng/L) NQ NQ ND ND NQ NQ ND ND ND ND Lim it o f Detection (LOD) for the procedure's approxim ately 13.6 ng/L Lim it o f Quantitation (LO Q )forthe procedure is 67.8 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LCD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ 3058 Research D rive State College, PA 1 6 8 0 1 , USA J : 814.272.1039 F: 814*231.1580 exygen.com RESEARCH . Precise Research. Proven Results. Analytical Result .Chambers Works PWS Sampling 2/06 DuPont Sample Identification CWK-G-30Q3310 CW K-G-3000563 C W K-G -3001815 CW K-G-5000098 C W K-K-FBLK-1 C W K-K-TBLK-1 \ \ \ \ \ \ C9 acid (ng/L) NQ ND NQ ND ND ND Lim it of Detection (LOD) for the procedure is approximately 13.6 ng/L Lim it o f Quantitation (LOQ) for the procedure is 67.8 ng/L ND - Compound not detected \ NQ - Compound detected at a level between th. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value Is reported. If th. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average vaiue is reported. If the absolute difference -.greater than LOQ, the higher value is reported. \ \ T3Q58 Research Drive - m S Mtete College, PA 16801, USA J : 814.272.1039 F: 814.231.1580 exygen.com Analytical Results Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -3003310 \ CWK-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory duplicate) C W K-G -3001815 X CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) CWK-K-FBLK-1 \ CWK-K-TBLK-1 \ C10 acid (ng/L) ND ND ND ND ND ND ND ND ND ND )sLim it o f Detection (LOD) for the procedure approximately 20.6 ng/L Lim it o f Quantitation (LOQ) fo r the procedure is 103 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LCD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ JiG ,30 58 Research Drive State College, PA 16 801, USA J : 814.272.1039 F: 814.231.1580 exygen.com Analytical Results; ,Chambers Works PWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 C W K-G -3000563 CW K-G-3001815 C W K -G -5000098 C W K -K -FB LK -1 C W K-K-TBLK-1 C10 acid (ng/L) ND ND ND ND ND ND Lim it o f Detection (LOD) fo r the procedure is approximately 20.6 ng/L Lim it o f Quantitation (LOQ) for the procedure is 103 ng/L ND - Compound not detected \ NQ - Compound detected at a ievel between th. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ ' Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If th. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported, if the absolute difference -.greater than LOQ, the higher value is reported. \ \ TJ & 3 0 505E8 Research Drive M mstSatatte College, PA 1 6 801, USA ,T: 814.272.1039 F: 814.231.1580 exygen.com RESEARCH , Precise R esearch. Proven Results. Analytical Results Chambers Works PWS Sampling 2/06 D uPont Sam ple Id e n tifica tio n C W K -G -3003310 , CWK-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory duplicate) C W K-G -3001815 \ CWK-G-3001815 (laboratory duplicate) CW K-G-5000098 \ CW K-G-5000098 (laboratory duplicate) C W K-K-FBLK-1 \ C W K -K -TB LK -1 \ C11 acid (ng/L) ND ND ND ND ND ND ND ND ND ND Lim it o f Detection (LOD) for the procedure is approximately 12.2 ng/L Lim it o f Quantitation (LOQ) fo r the procedure is 60.8 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the L d p and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ L3058 Research Drive . ^State College, PA 1 6 8 0 1 , USA kT: 814.272.1039 kF: 814.231.1580 exygen.com Analytical Result,Chambers Works PWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 C W K -G -3000563 C W K-G -3001815 C W K-G -5000098 C W K-K-FBLK-1 C W K-K-TBLK-1 \ \ \ \ \ C11 acid (ng/L) ND ND ND ND ND ND Lim it of Detection (LOD) fo r the procedure is approximately 12.2 ng/L Lim it o f Quantitation (LOQ) fo r the procedure is 60.8 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If the. RPD is greater than 20, the higher value is reported. \. If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported, if the absolute difference is\greater than LOQ, the higher value Is reported. \ 05 8 Research Drive Stale College, PA 1 6 801, USA J : 814.272.1039 F: 814.231.1580 exygen.com A n a lytica l R esults C ham bers W orks PWS S am pling 2/06 D uPont Sam ple id e ritific a tio n C W K -G -3003310 , CWK-G-3003310 (laboratory duplicate) C W K-G -3000563 \ CW K-G-3000563 (laboratory duplicate) CW K-G-3001815 \ CWK-G-3001815 (laboratory duplicate) CW K-G-5000098 \ CW K-G-5000098 (laboratory duplicate) C W K-K -FB LK -1 \ C W K-K-TBLK-1 \ C12 acid (ng/L) ND ND ND ND ND ND ND ND ND ND Lim it o f Detection (LOD) for the procedure is approximately 13.2 ng/L Lim it of Quantitation (LOQ) for the procedure is 66.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LCD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ ,3058 Res I D rive State C o l PA 1 6 8 0 1 , USA J : 814.272.1039 h 814.231.1580 exygen.com Analytical R es u lti Chambers Works FWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 CW K-G-3000563 CW K-G-3001815 CW K-G-5000098 C W K-K-FBLK-1 C W K-K -TB LK -1 \ \ \ , \ C12 acid (ng/L) ND ND ND ND ND ND Lim it o f Detection (LOD) for the procedure is approxim ately 13.2 ng/L Lim it o f Quantitation (LOQ) fo r the procedure is 66.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between th LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If the. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, rid the absolute difference is less than LOQ, the average value is reported. If the absolute difference -.greater than LOQ, the higher value is reported. \ 31 X3 0 5 8 Research Drive ^ K s tSatalte College, PA 16801, USA J : 814.272.1039 F: 814.231.1580 exygen.com lilt A n a lytica l R esults C ham bers W orks PWS Sam pling 2/06 D uPont Sam ple Id e n tifica tio n C W K-G -3003310 \ CWK-G-3003310 (laboratory duplicate) C W K -G -3000563 \ CWK-G-3000563 (laboratory duplicate) C W K -G -3001815 \ CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) CWK-K-FBLK-1 \ C W K-K-TBLK-1 \ PFHxS (ng/L) ND ND ND ND ND ND ND ND ND ND Lim it o f Detection (LOD) fo r the procedure'^ approximately 1.7 ng/L Lim it o f Quantitation (LOQ) for tie procedure is 8.5 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LOp and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ .3058 Research D rive State College, PA 16 8 0 1 , USA J : 814.272.1039 F: 814.231.1580 exygen.com 4 Analytical Result.Chambers Works PWS Sampling 2/06 DuPont Sample Identification CW K-G-3003310 C W K-G -3000563 C W K -G -3001815 CW K-G-5000098 C W K-K-FBLK-1 C W K-K-TBLK-1 \ \ \ \. \ \ PFHxS (ng/L) ND ND ND ND ND ND Lim it o f Detection (LOD) fo r the procedure is approximately 1.7 ng/L Lim it of Quantitation (LOQ) for the procedure is 8.5 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5'X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If the. RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference ..greater than LOQ, the higher value is reported. \ JL3053 0 5 8 Research Drive YState College, PA 16801, USA J : 814.272.1039 F: 814.231.1580 exygen.com RESEARCH , Precise Research. Proven Results. Analytical Resuits Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K-G -30Q 3310 \ CWK-G-3003310 (iaboratdry duplicate) C W K-G -3000563 \ CWK-G-3000563 (laboratory duplicate) CW K-G-3001815 \ CW K-G-3001815 (laboratory duplicate) C W K -G -5000098 \ CWK-G-5000098 (laboratory duplicate) CW K-K-FBLK-1 \ C W K-K-TBLK-1 \ PFOS (ng/L) ND ND ND ND ND ND ND ND ND ND . Lim it o f Detection (LOD) fo r the procedure t? approximately 7.0 ng/L Lim it o f Quantitation (LOQ) for the procedure is 35.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LCD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ J & 3 0k350 5E8 Research Drive \m SStatalte College, PA 16 801, USA ,T: 814.272.1039 F: 814.231.1580 exygen.com Analytical Result .Chambers Works PWS Sampling 2/06 DuPont Sample Identification C W K -G -3003310 C W K-G -3000563 CW K-G-3001815 C W K-G -5000098 C W K-K-FBLK-1 C W K -K -TB LK -1 \ \ \ \ \ \ PFOS (ng/L) ND ND ND ND ND ND Lim it of Detection (LOD) for the procedure is approxim ately 7.0 ng/L Lim it o f Quantitation (LOQ) for the procedure is 35.2 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 5X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD is greater than 20, the higher value is reported. \ If the sample and laboratory duplicate are less than 5X LOQ, and the absolute difference is less than LOQ, the average value is reported. If the absolute difference ..greater than LOQ, the higher value is reported. \ ,30 58 Research D rive State College, PA 1 6 8 0 1 , USA J : 814.272.1039 F: 814.231.1580 exygen.com RESEARCH n\PrecPisroevRenesReaerscuhlt.s. Analytical Results Chambers Works PWS Sampling 2/06 D uPont Sam ple Id e n tific a tio n C W K -G -3003310 \ CW K-G-3003310 (laboratory duplicate) CW K-G-3000563 \ CWK-G-3000563 (laboratory duplicate) CW K-G-3001815 \ CWK-G-3001815 (laboratory duplicate) C W K-G -5000098 \ CWK-G-5000098 (laboratory duplicate) C W K-K-FBLK-1 ,\ C W K -K -TB LK -1 \ FOSA (ng/L) ND ND ND ND ND ND ND ND ND ND Lim it o f Detection (LOD) fo r the procedure if approximately 0.3 ng/L Lim it of Quantitation (LOQ) fo r the procedure i$ 1,7 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the LOp and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ 3b . 30.350S58 Research Drive ^ m s tSatatts College, PA 1 6 8 0 1 , USA W |T: 814.27 2.10 39 F: 81 4 .2 3 1 .1 5 8 0 exygen.com RESEARCH KPrecise Research. Proven Results. Analytical ResultsChambers Works PWS Sampling 2/06 DuPont Sample identification C W K -G -3003310 C W K-G -3000563 C W K-G -3001815 C W K -G -5000098 C W K-K-FBLK-1 C W K-K-TBLK-1 \ \ \ \ \ \ FOSA (ng/L) ND ND ND ND ND ND Lim it of Detection (LOD) for the procedure is approximately 0.3 ng/L Lim it o f Quantitation (LOQ) for the procedure is 1.7 ng/L ND - Compound not detected \ NQ - Compound detected at a level between the. LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ \ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than X LOQ, and the relative percent difference (RPD) is less than 20, the average value is reported. If th. RPD is greater than 20, the higher value is reported, \ if the sample and laboratory duplicate are less than 5X LOQ, erpd the absolute difference is less than LOQ, the average value is reported. If the absolute difference .greater than LOQ, the higher value is reported. \ 77 ,3058 Research Drive State College, PA 1 6 801, USA J : 814.272.1039 F: 814.231.1580 exygen.com RESEARCH Proven Results. Exygen Contact: HqfK Sample Submittal Please fax this form before sending samples. Please send samples to Exygen's shipping and receiving address: 3048 Research Drive, State Coiiege, PA16801 T: 814.272.1039 F: 814.272.1019 Turnaround tim e (TAT) requirements: Results D u e D ate: P re lim in a ry Results F o rm a t: V erbal Em ail Fax Report D ue Date: Storage conditions Room tem perature Refrigerator Freezer U ltra-Low freezer Desiccated p Lighting required Stability (C/%RH): swfc j&A? Stability tim e period: Safety information Special handling: MSDS attached C o n tro lle d substance: HAZARDS: /Please fill in the diamond >. HMIS/NFPA (0-4) < X > if appropriate Vy Client ID# Description 1 - 3oo f ffS * 2 3 4 3o 0o 5(r3 5 6 7 G ^ tn rn J 8 f &u -\ 9 10 Q J t - K - n i K - ; Lot/ Control # A m t. Sent/ Date & M a trix W e ig h t Bottles T im e T e s ts Requested a itw - NOT I > - r z i. r ,n r g j/.i ft '1 it -"" Kil'KT <1 '""Sr 1 z \1 >nf T v rn i\ U u t* HR - / 4 ; F h o to ch rH ctk - P A S f. PFfit. ` FFHxA, W M , pfoA, {*(*$ , f t rc w k ) *jA , frtk A . P W . tfA iS PFoS 1* - f a b * f /> / m x -- ^ Ne*- fHSHm * w b c x s m iZ r rfv tir -FW : IK f iS i L im lC U ito 13SL M tZ i 0 . t-o 7.A/W fr /Hit/ ( J ... X 1/H it f t 7- u -- ht f t n 7 q riy c C 0 -- / / 1 nTiui----- 4t -L i i m o , /H*)n Notes: ____S c \ i h-&.-vS #4l - A ;ysjrgg- ,e-rd-rr>imV3j*o-fye'orViayt Relinquished by Date Time Received by .... --.... \W $ Date Time V0002836-1 Administrative Form DuPont AQUEOUS SAMPLES PERFLUO RINATED ORGANICS ANALYSIS AXYS METHOD: MLA-040 Contract1. 4380 Data Package Identification: WG18696 Analysis WG18544 and WG18650 Prepared for: DuPont Corporate Remediation Group 4417 Lancaster Pike Bldg 19 Wilmingon DE USA 19805 Prepared by: AXYS Analytical Services Ltd. P.O. Box 2219,2045 Mills Rd West Sidney, British Columbia V8L 3S8 CANADA Contact: Todd Fisher Project Manager 21 March 2006 C LIE N T ID A X YS ID WORKGROUP Sample Size U N IT S PFBA PFPeA PFHxA PFHpA PFOA PFNA PFDA PFUnA PFDoA PFBS PFHxS PFOS PFOSA CW K-G -3003310 L8701-1 (A) W G 18544 0.501 L ng/L 16.3 4 0 .3 4 2 .2 21.5 36.7 9.74 1.31 1.19 < 1.1 3 < 6.2 3 2 .8 6 6.15 < 0 .9 1 8 CW K-G -3000563 L8701-2 W G18544 0.503 L ng/L < 1.20 < 2.2 0 < 1.29 < 1.0 6 < 0 .9 6 3 < 1.35 < 1.0 7 < 0.947 < 1.1 3 < 2.4 0 < 2 .0 1 < 2.0 0 < 0.940 CW K-G -3001815 L8701-3 W G18544 0.500 L ng/L 18.6 6 6 .3 75.5 38.9 57 12.7 4 .0 6 < 0.953 < 1 .1 4 < 2 .4 1 3.32 3.21 < 0.921 CW K-G -5000098 L8701-4 W G 18544 0.500 L ng/L < 1 .2 1 < 5 .9 5 < 0.968 < 1.0 6 < 1 .0 1 < 1 .3 6 < 1.0 7 < 0 .9 5 2 < 1.1 4 < 2 .4 1 < 2 .0 2 < 2 .0 1 < 0.920 C W K -K -TB L K -1 L8701-6 W G 18544 0.500 L ng/L < 1 .2 1 < 0.944 < 0.9 68 < 1 .0 6 < 0 .9 6 8 < 1.3 6 < 1.0 7 < 0.952 < 1.1 4 < 2 .4 1 < 2.0 2 < 2 .0 1 < 0.920 Lab Blank W G 18544-101 W G 18544 0.500 L ng/L < 1 .2 1 < 0.944 < 0 .9 6 8 < 1.06 < 0.968 < 1.36 < 1.07 < 0.952 < 1.14 < 2 .4 1 < 2.0 2 < 2 .0 1 < 0.920 Spiked Matrix W G 18544-102 W G18544 % Recov 94.4 97 96.4 107 105 108 106 99.2 94.9 102 84.4 88.7 85.9 C W K -G -30 033 10 (Duplicate) W G 18544-103 (D U P L8701-1) W G18544 0.249 L ng/L 21.1 41.3 43.4 26 38,9 9.12 < 2.1 5 < 1 .9 1 < 2.2 8 < 8.3 6 < 4.0 6 6.14 < 1.85 See below for definitions of possible flags and labels in the database {sheet tab 'GenericEDD') < less than the detection limit number following this symbol represents the detection lim it For homoiogue totals sums, please see the individual congener data for the detection limit, E exceeds calibrated linear range, see dilution data CLIENT ID A X Y S ID WORKGROUP Sample Size UNITS PFBA PFPeA PFHxA PFHpA PFOA PFNA PFDA PFUnA PFDoA PFBS PFHxS PFOS PFOSA CWK-K-FBLK-1 L8701-5 W G18650 0.502 L <n1g./2L0 < 0.941 < 0.965 < 1 .0 6 < 0.965 < 1 .3 6 < 1 .0 7 < 0.949 < 1 .1 3 < 2 .4 0 < 2 .0 2 < 2 .0 0 < 0 .9 1 7 Lab Blank Spiked Matrix WG 18650-101 WG18650-102 WG18650 WG 18650 0.420 L ng/L % Recov <2.31 88.7 < 1.12 90.7 < 1 .1 5 96.8 < 1 .2 7 92.9 < 1 .1 5 < 2.00 102 111 < 1 .2 8 73.8 < 1 .1 3 < 1 .3 5 8100.11 < 2 .8 7 109 <2.41 103 <<21..3190 103 91.2 4-1 See below for definitions of possible flags and labels in the database (sheet tab 'GenericEDD') <= E less than the detection limit number following this symbol represents the detection limit For homologue totals sums, please see the individual congener data for the detection limit. exceeds calibrated linear range, see dilution data ][0 A X Y S I s a r Post Office Box 2 2 1 9 ,2 0 4 5 Mills Road W est TEL: (2 5 0 ) 655-5800 S idney, British C olum bia, C a n a d a V 8 L 3 S 8 F A X : ( 2 5 0 ) 6 5 6 -5 8 1 1 CHAIN OF CUSTODY AXYS C LIEN T#: REPORT TO: Company Address OoPpA- Contact fei5 W W flAxmtisn. ><? \ A m -C O A Phone FAX p & fl.- .- E-mall Project Name/Number: ( rii'-'4 t 0 W ^ - r ` Citent Sample Identification i-W K-t- " %,'"}I W i 1^* (y Cv<L-C Cuse^-fc - S OOqS G-ifc-.tR- F lic -I i_v*J --T&Lk ,, J Matrix uU-Mr WjiJUT U tM T UT'vitr- Sampling Date 'Ivibh xznlM INVOICE TO: Cornpany Addres& ContaiSt Phon 6 FAX E -m i Sampler's Name: 3 , i a kmfta , T, K Signature: J^XfcuLv/w.-------- /4 t1 f Sampling '/Container AXYS Lab Sample ID (LaiHrse only) Time Type/No. tHQZ IW k n vt N iZ hC sfi . ..n o& ut L 870S - i . X a.... "H ? --u ANALYSIS REQUESTED 'S cC St .0 " Cw. X t C3L- CL < a a. ** CL Q- <fc Cl . U. t/C* 'de. . 'S o- t i < %.< >4. ?s X IL $ 4 \ *^ L tfT 'i CD |p i t Q_ S . t o - Relinquished by (Signature) lto is A r - ^ ^Relinquished by (Signature) RemarKs Date Time 0 .2 1 /Q & (SCb Date Time Received by (Signature) - _ D a t e 'g $ a J b C > < Time S i 0 ^ 7 Received by (Signature) Date Time Courier, P stde* Waybill No. Sample Receipt Temp "C Custody Seal # Seallntact Sample Tags . Y /N Y /N Cooler _______________________ 1
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