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AAR2R2E6--33663364 INTERIM REPORT 61 Analvss ofOakdale Water Samples STUDYTITLE Analysis of Perfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using a: LC/MS/MS for the 3M Cottage Grove Monitoring DATA REQUIREMENTS [EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE `Weston Solutions, Inc. Wes1t40Ch0eWsteesrt,oAn Wa19y380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE * May 19, 2005 PERFORMING LABORATORY `Exygen Research St3a0te58CoRelseeagrcPhADr[i6v8e01 Phone: 814-272-1039 stuSpMyCsomppoannsyor 3M Building 0236-01-B-10 PSht.onPea:ul6,5M17N35556154744 PROJECT Protocol Number: P0001400 Exygen Study Number: P0001400 Tout Pages: 110 000024 ir. om GOOD LABORATORY PRACTICE COMPLIANCE STATEMENT Exygen Study Number P0001400, entitled "Analysis of Perfluorooctanoic Acid (PFOA), Perfiuorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctancsulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using LC/MS/MS for the 3M Cottage Grove Monitoring Program," conducted for 3M Company, is being performed in compliance with EPA TSCA Good LaboratoryPractice Standards 40 CFR 792 by Exygen Research. /2 [La Efrz.e Principal Investigator JaisimhaKesari P.E., DEE `Weston Solutions, Inc. Robert A. Paschke `Sponsor Representative 3M Company _ za Spas Die Date paal S000 600028 InterimReport #1-AualysisofOakdale Water Samples Exygen Stady No: PO0OI400 QUALITY ASSURANCE STATEMENT Exygen Research's QualityAssurance Unit reviewed Exygen Study Number P0001400, entitled, "Analysis of Perfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment,Fish, and ClamsUsingLC/MS/MSforthe 3MCottageGroveMonitoring Program." All reviewed phases' were inspected for conduct according to Exygen Research's Standard Operating Procedures, the Study Protocol, and all applicable Good Laboratory Practice Standards. All findings were reported to the Exygen Principal InvesantdMiangagaemtenotarndtothe Study Director. Date DetPrRiencpioparlt|etdoDatRBexpyagrtmed to DitoReporiedto Phase Inspected Investigator Management Study Director 1. Protocol Review 03/24/05 03/25/05 03/29/05 05/19/05 2 DmctiooReviow OY2OS OMS0S 0905 0s19NS andnr 3. Raw Data Review Analytical Report Review OsaG1TS osnsbs osaons osiisns TR haitter Te ical Lead, Quali surance Unit Butpe5l17fes "Note: All inspections will be documented in the QA statement for the final analytical reportattheconclusionofthe study. Exygen Research BUOO@RO0 IG Page3of 110 000026 Interim Report#1Analysis ofOakdale WaterSamples Exygen Study Noi PO001400 CERTIFICATION OF AUTHENTICITY This interim report, for Exygen Study Number P0001400, is a true and complete representationof the raw data. Submitted by: Exygen Research S3t0a5t8e CRoelsleeagrec,hPDAri1v6e801 (814) 272-1039 Principal Investigator, Exygen: fd BVixhcynegePFnrleaRsheiedsretenyatrch Asks Date. `Exygen Research Facility Management: Cu, ] RBPirxecyshgiaedrendntA. Research Sudy y Weston Solution, Inc. 5-405 Date. Jaisimha Kesari P.E., DEE `Weston Solutions, Inc. `Sponsor Representative, 3M Company: < os Robert A. Manager, Paschke 3M Corporate Environmental Programs. Exygen Research Fo. s Dad Joilos Date Page 0110 000027 Interim Report #1-AnalysisofOskdale Water Samples Exygen Study No.: POOOIA00 'UDY IDENTI TION AnalysisofPerfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate(PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using LC/PMrSo/grMaSmfor the 3M Cottage Grove Monitoring "PROTOCOL NUMBER: 'P0001400 EXYGEN STUDY NUMBER: PO001400 TYPE OF STUDY: SAMPLE MATRIX: `TEST SUBSTANCE: Residue `Water Perfluorooctanoic acid (PFOA), Perfluorobutanesulfonate (PFBS), PPeerrfflluuoorrooohcetxaanneessuullffoonnaattee((PPFFOHSS)), and SPONSOR: 33MM BCuoimlpdianngy0236-01-B-10 St. Paul, MN 55144 STUDY DIRECTOR: aot amon way Jaisimha Kesari P.E., DEE Weston Solutions, Inc. `West Chester, PA 19380 SPONSOR REPRESENTATIVE: Robert A. Paschke SBPoiMnEg LS981827 3M Company PERFORMING LABORATORY: Exygen Research 3St0a5t8e RCoelsleeagrec,hPDAri1v6e801 ANALYTICAL PHASE TIMETABLE: tac Sominaton Date GAZ1108 `Study Initiation Date: Interim Analytical Start Date: 03/03/05 03/21/05 Interim Report Completion Date: ~~ 05/19/05 Sriya `Exygen Research Page Sof 110 000028 Interim Report #1-AnalysisofOakdale Water Samples Exygen Study No. PO00I400 PROJECT PERSONNEL The Study Director following personnel for this project is Jeisimha Kesari at Weston Solutions, Inc. from Exygen Rescarch were associated with various phases of The this interim portionof the study: Name John Flaherty Karen Risha Paul Connolly Chrissy Edwards Mark Ammerman Amy Sheehan Eric Edwards James Miller Edward Kaiser Tite Vice President Scientist Technical Lead-LC/MS. Technician Sample Custodian Associate Scientist Sample Custodian Scientist Scientist Exygen Research Page 60f110 000029 InterimReport#1-AnalysisofOakdale Water Samples `Exygen Study No.: P0001400 TABLE OF CONTENTS TITLE PAE dps Ts mdhgummdPeag]e Q`GUOAOLDILTYABAOSRSAUTROARNYCEPRSATCATTICEEMECONMTP.L.I.ANCE STATEMENT ...c.occvvvrrmrrrns2n PROJECT PERSONNEL......ccorovrr rns orrsnscon sisesssessretrsrsertem messes EISTOFAPPENDICES cummings] $0 BOIRODUCHON, fis sarsiagmmemniimonimgmnimmmmmerrmrth 4$.00 BAINRAOLYITINCEALMTAESTT SEAMRPLEwSus.foraragaems mnsmgemmsmmsmmmer1s3h 6.0 DESCRIPTION OF ANALYTICAL METHOD ....coccornmrmnnrismsssssssssssssssssenens 15 6.2. Preparation ofStandards and Fortification SOItONS...........uursssssssssssssrrsenss 16. CA TRSOIE yr gonna uoaprngpmmmmeminnetd 6.5. Description of LC/MS/MS Instrument and Operating Conditions... 7 6.6.Quantitationand EXAmPle Calculation. .............uwwrvrscemermininnsorecs 18 7.0 EXPERIMENTAL DESIGN .....oocoonomnimmiirmmrsmssrsinssesmssns sss sssssssssssssssne: 19. 9.0 CONCLUSIONS... orem 20 10.0 RETENTION OF DATA AND SAMPLES .....occoreovvocmmnsrnssnsssssssssssssrsssssennn 20 `Exygen Research EAGT PageTor110 000030 Interim Report #1-AnalysisofOakdale Water Samples ExygenStudy No: POD01400 Table]. TabloTL. Table I. Table IV. LIST OF TABLES Page SummaryofPEBS, PFHS, PFOS and PFOA in Water Matrix Spike Recovery ofPEBS and PFHSin Water Samples..............24 Matrix Spike Recovery of PFOS and PFOA in Water Samples............30 Surrogate Spike Recoveryof C PFOA in Water Samples ..............w....36 Fxygen Research, ' Page Sof 110 00003% --_------ Interim Report #1-AnalyssofOakdale Water Samples Exygen Study No. PO001400 Figure 1. Figure 2. Figure 3. Figure 4. Figure S. Figure 6. Figure 7. Figure. Figure 9. Figure 10. LIST OF FIGURES Page Typical Calibration Curve for PFOAinReagent Walef........cr.conid Extracted Standards ofPFOA in Reagent Water, 25 ng/L and 0 ng/L, ROPE -rmnssmmsemmmssmmenesmsrossemsmnerns PFOA in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, RESPECHVY rrr Chromatogram Representing an Oakdale WaterSample: Analyzed for PFOA, DF=100 (Exygen ID: C0064522, De Set: BSC immmnniagrmnsmmmesmmstmmmmtnnmtl TypicalCalibrationCurvefor C PFOA in Reagent Water ...................47 Extracted Standards of "*C PFOA in Reagent Water, 25 ng/L 1 SONL,RESPECHVEY.rrrrnrnrr ncn 88 ""CPFOA in Reagent Water, S0 ng/L Fortified Reagent Water, and S00 ng/L Fortified Reagent Water, RESPECHVEY...........orcrcreed) Chromatogram Representing an Oakdale Water Sample: Analyzed for "C PFOA (Exygen ID: C0064522, Data Set: 032405C).........50 Typical CalibrationCurvefor PFBS in Reagent Waler....ovvvnoronsS1 Extracted Standards ofPFBSin Reagent Water, 25 ng/L and 50 ng/L, Figure 11. PFBS in Reagent Water, 0 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, RESPECHVElY......roeurrrvvs 53 Figure 12. Chromatogram Representing an Oakdale Water Sample Analyzed for PFBS, DF=100 (Exygen ID: C0064522, Data Set: Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Typical Calibration Curve for PFHS in Reagent WAL ......ovevrrr 55 Extracted Standards ofPFHS in Reagent Water, 25 ng/L and 50 ng/L, BADR gmmmmminesmmmmmmmmmssmmamnds PFHS in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 g/L Fortified Reagent Water, RESPECHYElY..r.cvrvovrrarrvsmnns ST Chromatogram Representianng Oakdale Water Sample AnalyzedforPHS, DF=100 (Exygen ID: C0064522, Data Set: 032405CR).... nigmR------------------"-- Typical Calibration Curve for PFOS in Reagent Water mma) Exygen Research #2 Pags90f110 000032 --_-- Interim Report #1-AnalysisofOakdale Water Samples ExygenStudyNo.: POOO1400 LIST OF FIGURES Continued Figure 18. Extracted Standards RESPECHVE. eros of PFOS in ResamgeenntssWastsesrs,s2i5onngs /L andm 50 ngn /L, 80 Figure 19. P50F0OnSg/iLnFRoeratigfeinetd WRaetearg,en5t0Wnagl/eL,FoRrteiSfipedERCetaigeVnetlWYaute.rv,vavndvvvnnrn-61 Figure 20. A-CnharloymzaetdofgorraPmFROeSp,reDsFen=t1i0n0g a(nExOyagkednalIeD:WaCt0e06r4S5a2m2p,leData Set: O340SCR) rrr eerie Exygen Research Fatt Page 1006110 . 1000033 ee Interim Report#1-Analysisof Oakdale Water Samples `Exygen Study No. PO001400 LIST OF APPENDICES Page Appendix A. Study Protocol P0001400 (Exygen Study No. PO001400) with Analytical Method: V000I780:MethodofAnalysis for the Determination ofPerfluorooctanoic Acid (PFOA) in Water by Exygen Research TESONG, Page 110110 000034 -------------------------------------------------------------------------- Interim Report#1-AnalysisofOakdale Water Samples `Exygen Study No. 0001400 1.0 SUMMARY Txygen Research perfluorooctancic cxtracted acid and analyzed (PFOA), wateprerfslaumoprloebsutafnocrsutlhfeonadteete~rm~ina(tiPoFnBS)o,f perfluorohexancsulfonate (PFHS), and perfluorooctancsulfonate. (PFOS) according to Exygen Method 0001780 (Appendix A). "LTheiolifmmditetoiefcqttuiaonntfiotratPioFnOfAo,r PPFROBAS,, PPFFBHSS,aPnFdHPSFOaSndinPwOatSerinwawast2e5r wnga/sL.50 ng/L and the A`nsaulmymtairciazlerdesiunlTtsabfloret1h.e TanhaelyosviesraolflPaFvOerAa,gePpFeBrSc,enPtFrHecSovaenrdiePsFOsStiannwdaartdedrevsiaamtpiloenss afroer all fortifications of PFOA, PFBS, PFHS and PROS in water samples were 93% + 19, 141% 21,96% 15 and 109+% 32, respectively.The overall averagepercent recovery + standard deviation for all fortifications of the surrogate field spike compound, "*C- PFOA, in water samples was 83% +21. 2.0 OBJECTIVE The objective of perfluorooctancic the analytical part of acid (PFOA), this study was to determine perfluorobutanesulfonate levels of (FBS), perfluorohexancsulfonste (PFHS), and perfluorooctanesulfonate (PFOS) in water according to Protocol PO0D1400 (Appendix A). 3.0 INTRODUCTION TahnidsPrFepOoSrtidnetwaaitlesrtuhseirnegsutlhtes aonfatlhyteiecnaallmyseitshfoodr etnhteitdleetde,r"mVi0na0t0i1o7n8o0f:PMFeOtAk,odPFoBfSA,naPlyFsHiSs forthe DeterminationofPerfluorooctanoic Acid (PFOA) in Water by LC/MS/MS." The study was initiated number PO001400. The on March 03, analytical star 2005, when date for this the study director interim report was signed protocol March 21, 2005, and the analytical termination dateforthis interim reportwas Apri 21, 2005. Exygen Research wg Page 1207110 000035 ------ InterimReport#1.AnalysisofOskdale Water Samples Exygen Study No: POOOL400 4.0 ANALYTICAL TEST SAMPLES One hundred and twenty-one water samples, which correspond to twenty-nine sample sites, (Exygen ID C0064404-C0064438," C0064442-C0064461, C0064467-C0064532) `were received at ambient temperature on March 15, 2005 from Tim Frinak at Weston rSeoflruitgieornast,edIsntco.rageT.he samples were logged in by Exygen' personnel and placed in Sample log-in and chain of custody information is located in the raw data package `associated with this interim report. Storage records willbekept at Exygen Research. 5.0 REFERENCE MATERIAL `The analytical standard, PFOA, was purchased from Sigma Aldrich and was received at Exygen on December 08, 2003. perflucrooctancic acid (C PFOA), wasThreeceisvuerdroagtatEexysgpeinkionng Apsrtialnda1r5d,,20"04C frloambeltehde 3M Company. The analytical standards, PFBS and PFHS, were supplied by 3M. PFBS. `was received from 3M at Exygen on July, 06, 2000. PFHS was received from 3M at Exygen on January 20, 2003. PFOS was purchased from Fluka Corporation and was received at ExyognAeprnil 23, 2003 "The available information for the reference materials is listed below. PFOA was stored ambient. PFBS, PFHS and C PFOA were stored frozen and PFOS was stored refrigerated. PoFmpOoAund ~~ExvgeSnPI0n0v0e3n8t0or0yNo.. 2L3o1tIG#HB VCPFOA SP0004184 3507-195 PFBS SP0000252 101 PFHS SP0002401 SE036 PFOS SP0002694 430180-1 Pur9i7t.y64(%) 97 96.7 98.6 101.2 Expi1r2a/t0i8o/n05Date 0329/09 12/04/06 10/18/06 04/23/06 `The molecular structures of PFOA, *C PFOA, PFBS, PFHS and PFOS are given on the following pages: ELOHH Exygen Research Page 130f 110 000036 InterimReport #1-AnalysisofOakdale Water Samples. `Exygen Study No.: PO001400 PFOA Chemical Name: Perfluorooctanoic acid Molecular Weight: 414 Transitions Monitored: 413 -> 369 (for quantification) and 413 >219(forconfirmation) Structure: E F F BF F FlPErTlE F E `OH C PFOA Chemical Name: 1,2-13C perfluorooctanoic acid Molecular Weight: 416 Transition Monitored: 415 - 370 Structure: FFF 0 wll } A we" Nou peel]F ChPeFmBiScalName: Perflsorobutanesuifonate MoTlraencsuitliaornsWeMiognihtto:re3d3:8 2s9up9plie9d9as the potassium salt (C:FsSOyK") Structure: F flF r F PlFtlr 503" Exygen Research roi Page 140f110 000037 ------ InterimReport#1-AnalyssofOakdale Water Samples Exygen Study No.: PO0O1400 PFHS Chemical Name: Perfluorohexanesulfonate Molecular Weight: 438 Transitions Monitored: s3u9p9pl--ie8da0s thepotassium salt (CF1;S0yK) Structure: F ELEEE F 503 FFlOeEr CF PFOS Chernical Name: Perfluorooctanesulfonate: Molecular Weight: 538 supplied as the potassium salt (CoF,SO;K") Transitions Monitored: 499 --> 80 Structure: F- Fle] EF _503 | flFeOFleF CF 6.0 DESCRIPTION OF ANALYTICAL METHOD `The analytical method "V0001780: Method of Avalysis Perfluorooctanoic Acid (PFOA) in Water by LC/MS/MS was for the Determination used for this study. of 6.1. Extraction Procedure A 40 mL aliquot of the water sample fortification of appropriate samples, the was used for samples were the extraction loaded onto a procedure. After Cis SPE carridge Acopnpdriotxiiomnaetdelwiytfhiv1e0mimllLiliotefrsomefthmaentohlanaonldw5asmaLddoefd wtaottehre. caTrhtreidgcel.uatFeivweamsildliilsictaerrdsedo.f ewlausataenwalayszecdolblyecLteCd/iMnSto/Ma Sgrealdeucattreosdpr1a5y.mL polypropylene centrifuge tube. Each sample Esygen Research pea amet AY Page 1501110 000038 ------------------------------------e --e --e ---- InterimReport#1-Analysis ofOakdale Water Samples Exysen Study No: PO001400 62 PreparationofStandards and Fortification Solutions pInrdeipvairdeudalasstsopcekcisftiaenddianrdExsoylguetnionmsetohfoPdFVOOA0,017C80P.FOTAh,e PstFoBcSk,stPaFnHdaSrdansdolPutFiOonSs wweerree prepared at a (corrected for cpounrcietnytraantdiosnelot fco1n0t0entp,g/ifmnLecbeyssdairsys)olivninmget1h0anmolg.ofFeraochm of the standard these solutions, 1.0 pgimL. appropriate fortification standard. stock and bringing the solutions were prepared by taking volume up to 100 mL with methanol. 1 mL of By taking the 10 mmLLowiftthhemeaptphraonporli,at0.e11.u0gg//mmlLf.orftoirftiicfaitciaotniosntasntdaanrddasrdwearned pbrreipnagriendg.thBeyvotalkuimneg u1p0mtoL1o0f0 the appropriate 0.1 with methanol, 0.01 g/mL fortification g/m, fortification standard and bringing the standards were prepared. volume up to 100 mL pServeepraarledseitnswoaftesrtaannddarpdrsocceosnsteadintihnrgouPgFhOAth,e exCtraPcFtiOoAn,prPoFcBedSu,reP,FiHdeSntaicnadl PtoFOsaSmpwleers.e The following concentrations were prepared: Conc.of Fort Fort Volumeof Solution Volume Fortified Sample (ag/mL)! 0 ul) 0 (mL) 0 10 100 "0 10 200 4 10 400 40 100 100 40 100 100 200 400 40 40 ! ofPFOA, "'CPFOA, PFBS, PFHS and PFOS Final Conc. of Calibration Sid. (g/L) 0 25 50 100 250 500 1000 pArnepaadrdeidtiaotna1l0m0i0xepdgsmtockansdolduitliuotnedoftoPF1O00A,an"dC10PFpOgA/,mlPBfoSr,boPttFlHeSs,piaknidngPpFuOrSposweass. Complete detailscanbe found in the raw data package associated with tis study. The stock Stored in standard solution and a refrigerator (4 + al fortification 2C) when not and in calibration standard solutions were use. Documentation of standard `preparation is located in the raw data package associated with tis interim report. Exygen Research a Page 16 of110 000033 ------------------------------------------------------------ term Report #1-Analysisof OakdaleWater Samples Exygen Study No: PO0OIA00 6.3 Chromatography Quantification of PFOA, PFBS, PFHS and PFOS was accomplished by LC/MS/MS electrospray. The retention time of PFOA, PFBS, PFHS and PFOS was ~12 min, ~5 mins, ~11 mins, and ~13 mins, respectively. Peaks above the LOD were not detected in anyof the reagent blank samples corresponding to the analyte retention time. 6.4 Instrument Sensitivity - The smallest standard amount injected during the chromatographic run had a concentration of25 ng/L ofPFOA, PFBS, PFHS and PFOS. 6.5 DescriptionInosftrLuCme/nMt:S/MASPIIn4s0t0r0uBmieonmto and Operating Condi lecular Mass Analyzer t i o n s Interface: "Turbo lon Spray Liquid Introduction Interface. Computer: ~~ DELL OptiPlex GX400 Software: `Windows NT, Analyst 1.4.1 HPLC: HewlettPackard (HP) Series 1100 HP Quat Pump HHPP VAuatcousuammpDleegrasser HP Column Oven HPLC Column: Thermo Fluophase RP, 50 mm x 2.1 mm Column Temp.: 30C IMnojbeictlieonPhVaosl.s:(1A5):pL2. mM Ammonium Acetate in water Mobile Phase (B): Methanol Time(nin) %A %B 0.0 65 35 10 65 35 108.00 2255 57s 11810.0 6655 335 T FlowouRantetl :im0e:3~m1L8mmiinn [Exygen Research ENO4. Page 17 of 110 000040 Interim Report #1-AnalysisofOakdale Water Samples Exygen Study No: PO001400 Tons monitored: Andivte PFOA PFOAConfimlon 13CPFOA PFBS PFHS. PFOS Mode negative negative negative negative negative negative Transifion `Monitored 413 369 4135219 415-5370 299599 399580 49980 Approximate Retention Time (min) ~12 min. ~12min. ~12min. ~5 min. ~11 min ~13 min 6.6 Quantitation and Example Calculation `FTihfeicpeenakmiacrreoaliwtearssmoefassuarmepldeanord ctahleisbrtaatnidoanrdstcaunrdvaerdwawsergeenienrjaetcetded(uisnitnogt1h/exLfiCt/wMeSig/hMtSe.d lincar regression) by Analyst software using six concentrations of standrds. The concentration was determined from the equations below. Equation | calculated the amountofanalyte found (in ng/L, based on peak area) using the standard curve (linear regression parameters) generated by the Analyst software program. Equatio1n; `Anslyte found (ng/L) =(Peakarea-interceptx) DF slope. Where: DF = Dilution Factor, factor by which the final volume was diluted,ifnecessary. pFroirorsatompelxetrsacftoirotnif,iEedquwaittihoknn2owwansaumsoeudnttosocaflcPuFlaOtAe,thPeFpBeSr,cePntHrSec,ovPerFyO.S and C PFOA `Equati2o:n Recovery ((%a)na=lyte found (ng/L) -analyte in control (ng/L) 100% `mount added (og) An example of a calculation using an actual sample and results from the PFOA analysis follows: `Water sample Exygen ID CO064432 Spk F (Set: 032105BR), fortified at 50000 ng/L with PFOA where: peak area - ume intercept = 2600 slope = Bp dilution factor = 00 ng/L PFOA added (for level) = 50000 amt in corresponding sample (ngL)* = 37600 (The primary sample result was used for ll calculations) Brygen Research Page1806110 --_-- Interim Report #1-AnalysisofOskdale Water Samples Exygen Study No: PO00L400 From equation 1: `Analyte found (ng/L) = [1170161 = 26200] x 100 1330 From equation 2: %Recovery = s6012ngLe = (86012ngL-- 37600ng/L) x 100% 50000 ng/L = 97% (+valuss are slightly different fom raw data due to rounding) 7.0 EXPE CAL DESIGN saCmpPleFOcoAllewcatsionusboetdtlaess ianstuhrerolgaabtoeratfoorryablleftohree bsaemipnlgess.hippCedPtoFtOhAe fwiaelsd faodrdseadmptlointgh.e For samples designated as fiekl matrix spikes, PFBS, PFHS, PFOSand PFOA were also added at known concentration to the bottles in the laboratory before being shipped to the field. The samples were filled to a 200 mL volumetric il line in the field. `The samples were extracted in five sets. Each set consistedofonereagentblank and two. reagent blanks fortified at known concentrations. The fist set contained six sample sites, the second set contained six samples sites, along with a trip blank and two rip blank spikes. The next two sets contained seven sample sites each. The fifth set contained three sample sites, along With a second trip blank and two trip blank spikes. For each site, a sample,a field duplicate and two-matrix field spikes were collected. For each site, a laboratory duplicate of the primary sample was extracted and two laboratory matrix spikes were also extracted. For the two laboratory matrix spikes, two 40 mL. portions of the primary sample collected for the site was poured from the bottle and fortified. Not only were PFBS, PFHS, PFOS and PFOA added in the laboratory prior to extraction, but also "C PFOA was added. The additional "C PFOA was added because the levels of PFBS, PFHS, PFOS and PFOA spiked. into the samples were known to exceed the cwaelriebraadtjiuosntredantgoerseqaunidrewtehreesanomte adnilaultyizoendaswtihtehootuhtedrilauntailoynt;est.herefore, C PFOA levels For cachprimarysample collected, between the fieldand lab; seven individual QC results wnoerrmearlepaocrcteepdtafonrce'rCanPgFeOoAf.70S-o1m3e0%s.ampBleecsaugsaevelarbeocroavteorriyescofnotrr"olCsPpiFkOesAfoourtsCideoPfFtOheA. `were acceptable in PFOArecoveryper every set, the seven idnosnterufmoerntthewassahmepslewewraes farceceeopftablCe aPnFdOnAo, eavtidleeanstt eornroersiCn srepciokvienrgieosroeuxttsriadcetoifng70c-ou1l3d0%bearefoduenedm,endoinrdei-ceaxttirvaecotfiomnastrwiexreeffpeecrtfs.ormed. 'C PFOA ExygenResearch EEE Pege 19.0 110 000042 -------------------------- e-- e -- InterimReport#1-AnalyssofOakdale Water Samples Exygen Study No. 0001400 8.0 RESULTS Analytical results for the analysis ofPFOA, PBS, PFHS, and PFOS in water samples are Summarized in Table Fortification detailed in recoveries Tables 11 for and PFOA, PEBS, PFHS and PFOS in II The overall average percent the water recoveries samples are + standard d9e3vi%at+io1n9s, f1or41a%l f=or2t1i,fi9ca6ti%onso1f5PaFnOdA1,0P9F%BS+,3P2,FrHeSspeacntdivPelFyO. SiFonrtwiafticeartisoanmprelceosvewreirees for 'C PFOA in the water samplesare detailed in Table IV. The overall average percent recovery * standard deviation for all fortifications of "C-PFOA in water samples was 8%=21 9.0 CONCLUSIONS "PTFheOwAataecrcsaarmdpiltensogwaenraleytsiuccaclesmseftuhlloydeVxOtr0a0c1t7e8d0a.ndTahnearleyzweedrefonroPcBiSrc,umPsFtHanSc,esPFthOaSt maanyd have affected the data quality or integrity. 10.0 RETENTION OF DATA AND SAMPLES Awilllobreigisnhailpppaepdetrodtahtea sgpeonnesroart.edTbhyisExdoyegsennoRtesiencalrucdhethfaatcipletty-asipnescitfoicthriaswindtaetraimsurcehporats ithnestirnutmeernitmoarnatleymtpicearlatruerpeorltogas.nd Ealxlacotricgoipniaesfoafclailtl-rsapewidfaitce,raasw wdealtla,awa sbiiegrneletdacilonpedy oinf the Exygen Rescarch archives for the period of (ime specified in EPA TSCA Good Laboratory Practice Standards 40 CFR 792. Exygen Research . Page 200f 110 1000043 IniReport 1-AnsolfOynies Wee Samples BaysSudyNo: FOOLA0O EeRn0 [---- Page21 of110 000044 ----------------------------------------------------------------e--eeeet Interim Report #1-AnalysisofOakdale Water Samples Exygen Study No.: POOI400 Tablel. Summary of PFBS, PFHS, PFOS and PFOA in Water Samples sme cronper conor conudanlirens coronas ClCooeUeM"Re oROKISHNGO HHIOn ONG == wa =eo 3 = oGTooeuonss"s oBoumnOoouNmesAsomsoRDos a1mso wo 2a=0 =i-m ccCohowsna" OS GoIoNmOucNNuImmSmOTom IsOo0S TnTiuHe ffmaammee mtwwoeosww mTraeewe a cTolmei"s co uomounmm wGSNoSnc OeR0I0e ofHeen aE0md PF oRn E. wes cocToamtuinr"o ScouNuuomwinwomwSsmsES:oOsDe o=ToH oawoe sa Ta s wi =on ocCHoAe Ew" cS oormuomEownwuS nnososE ssobne a72 == smomooe ws-re moConitns" GUoONaNOGmWoMWwTTmOOoSOoERsOMvOR 010 wwoo wo n3~a cwoTtoonau"ti oOouUUumOmGWoHPPwWcIooTRRsOOsIos aS8na PoE:oS EokAwe ao-m Gos ORNGHTRPLO0 wo 0 wo w moToHuEstRz"i CoMmomOaOmNanwFrsIowEasCaoIsGOye 1tWa0l0 a=Se SBwe=on ofaoen ocCoanursn OOcGaUMuNOmONcNInSOmSOmIEoRIsO aEnA aEfeol wbi4as oo-me ccoovoe SouOmNNOHEUZOONGGT 8w 2 naa =on JocToUmEsS Soorwummmoowicoesoeoaoonm w0a2 w25o jiw -24 orTethus"te CcOOrNruOmwocNuneSo0s.O) nj8oe wo wn"oe m==s hcTaoemia" oOo uUmRoGm nIwNoEse OGODEy 1omoo sofoee w=Eodm opEemSd cca oosodSor namoewwzwoosssons wsno sEZu>wm owwwoe SsSioonon a -- Tr mataawsoewc nStaemcatasthes 3 nik `Exygen Research rie Page 220110 000045: + Interim Report #1-AnalysisofOakdaleWaterSamples Exygen Study No. PO001400 Table. Summary of PFBS, PFHS, PFOS and PFOA in Water `Samples Continued ene, itis cosas cnn res curren cTowmhees oSgmmn EonR s uroS. me 21 wn mo o om mmm m=mw= cTconhu"m, c SoUcMwocs wwNwEmSo. IsEmEy aw a== P psoroo r, [TcoUwEesS: rMomwEmiovNmnaAnsee,mSR 0 0% 820 w%=o =awo oTcoahm.s S oumaouwmmenonnes omwm wm=ooomwme oowwmw ocnum, SSouumS onwwmSTnsHn, mis mm=e2 mS m e oo mwm uw=me [ooToinmak"BRovoumrmaieusmmnronessSU 10 1 w2 w p== owne,gl L Souummoornnmn oemmssee w=m p=omn w m wo wE w w RcToosasI aroummaoweniznemns,e wr a-ES == === [TcolauenRE or obummeer nnmmssoer mamhee RuHn wwwewe m m ww oo mwm cTGoTdee o SouUmmoo eiIowLoIn mSoEs | wm n EiPS] so nnomwu cToomEenne oSgduOmeoMuvsEwessoRsosSsn TmRo m mwoooE mowom me oTwTs EouSmowSwwNsom.e wFemo m3m edmE ammm ccTuHseEs oSotuoUmeNwmsSmoom.ess eax ==rs = o em wm eEm mcTunsE.s oSoluammnissuesomonnmeone 0%tM I4x" ==- -5= J wo w wo n-- v onei marteb c ra sven NBG HG `Exygen Research Page 2307 110 000046 -- i -------------- So-- eee---- Interim Report #1-AnalysisofOakdale Water Samples `ExygenStudyNo.: P0001400 Table IL. Matrix Spike Recovery of PFBS and PFHS in Water Samples momen |Z0DOD LIZ] ore |u| vx www em CmOe Jaa| va ww we] D md wwe ow ow mew wim 000 DTN DD cumgumosminnieonn| ol go wm ow [ww] 0 www (Sm || pen wc [oe ww wwe ip |) OT TTD TD rit wan| mas von vo won| a mew wim || rr" fn| mes TEREEEL | smooittt| | CRIMI Lua | ww 0 TDN vw wa woo mo |e] mw fon] wwe vo fom] DD we mew ow ee mw ve mw ow eww So eee [Exygen Research EEL Page 24 of 110 1000047. ---------------------- ee-- see-- eea-- mes------ -- InterimRepart #1-AnslyssofOskdsle Water Samples Exygen Sudy Noi PO0OI400 Table Il. Matrix SpSiakmepRleecsovCeornytoifnPueFdBS and PFHS in Water or Ss HaS meer SETTIE NL mer mpi| 0 STN D0 0 Emme. (T)D0T ITI MIDI |e wo www fom] wm rari am| 0 we ow fee] wo CUMNEIIIIIEaEm| 0 we mmm] ow conan wo | wow IEE, few| wn on rer TM fn| wm SMPTE a| wn we oe (oo se www [ew] me pew wwe| we ww [oe] mm OTC wo ome ow ew ow wm wm owe ow we ow www etme (0000 DID DL CCIE Jes| wo we |u| oe wm ow cmm s ree asae e|| | LL wa www Jum] OD 2 0 www IER TR Exygen Research Creo Page 250f110 000048 ------------------------------------------ere Interim Report #1-Analysis of Oskdale Water Samples `Exygen Study No: P0001400 Table Il. Matrix Spike Recovery of PFBS and PFHS in Water Samples Continued sme aTo erlEiTMvue Tleen" ATM wep wim (TDD DID WL ummm || am we we] ol we ow ebm TT coments| fe we LIT ow fem] DDL 0 we ow wre (TO mt || ww maete || ww EL] sn me comptotinn | um CUNGIDMINTID | coe| wn won DTD va [en wm we] oe [on vem fem owe ww (wme| ww DL een ww en we eww dma| 07 TDD mime| DT TID mime || eww |u| we www Exygen Reseach Rs Page 2601110 000049 ------------------------------------i------------ ------------------------ Interim Ror#1-AnalyssofOskdle Water Samples r-- Table IL. Matrix Spike Recovery of PFBS and PFHS in Water Samples Continued samp Sans heen Me my Sobat Whe Mes Mees mim[e 2 0 SD TD Smee (oo oo CW oo a Ee meme(0 2 SHLD ety*TM (eal aw wn. ww |u| - w me (LD TLD ST A | 6 Ldn ow fount - w "ESI II ooninozo BE hc zH = PIER or) + ot oon {in| mmm sd Re | TTT BxpgenResearch era Page2706110 000050 tein Report1Als ful WcSerges ws s---- EStx ly No: Pe OCOIO0 Table Il. Matrix Spike Recovery of PFBS and PFHS in Water `Samples Continued a AY We my pa hs Reon Remy Jr rig Eed C ael omd i, srr. mem | a] ww m wiimm i (|7| T00T T DDDDD Cena (TIT LIDITD oma im sra m||son| Tov|o0 ww ve [mw| mow onwe - == Soous a oumanrerse |! ro wm ve Jum] wo owl we = SmRens Co -- 000051 --_--mm---- InterimReport #1-AnaolfOyaskdialse Water Samples `ExygenStudyNo.: P0001400 Table Il. Matrix Spike Recovery of PFBS and PFHS in Water Samples Continued it rdEE we EE meme (N00 DIDNT cmt ul em fem] ewe ow neGlare |] ve wife] ww = ota EE. i -- 26604 Exygen Research Page29 of 110 000052 ii--------re ---- ------ ------ ------ ---- Interim Report #1-AnalysisofOakdale Water Samples `Exygen Study No.: P0001400 Table ITl. Matrix Spike Recovery of PFOS and PFOA in Water Samples sn Et pri TH WE mgr mone || et] umm stint|ol compen| | omental ge uw ww] em we ow mm [em] wn ow ve vm wm| ww vn ww || www we we mm] ow ww wim | cometsom || 0D yen LTD ow fm| mo OD wen Se || -- ||= -- Cemenmon |DIIT|DI a. mommies| | ey me comonomer | om |mo + | wo| o on me emit NID ND cummins |CC em Cee | Comm |2 a] eww onteo | | en om an| ee wm nomen (| ew [wn| wm on mm - |]. oumommeamte|he| CSTD| ao| y 0 oe ee| = we www "lve ow e I ei abe r msn es13e 0G0 5r ot Exygen Research Page 3001110 000053 S------------------ A -- -------- -------- ------ ----g-- oes ee-- retea-- sier-- Interim Rep#1-oAnarlystisofOakdale Water Samples ExygenStudy No.: PO0O1400 Table IIL. Matrix Spike Recovery of PFOS and PFOA in Water Samples Continued J oe iar we es$a TT mo mn CERN [ee] mmm CUNCTENIIIIE | oe mow we] ke Lf v0 see wo [ww] we mw ow SD ww ow mE CONITLEITEIT Or arr CUMEITIIIZIT mtn warm cruuBnIaTmLeIngNtEha 00 Tl Lown| vir wo| to laa | ve [sf do || 0 om se TTT we fom wwe www mo we ww| we ww ow mw wr [mm] we wwe wm wwe [aw ee ow DT DDT wo wo| ] ow mE. | mm mm CUNDITITIEII en| cus wore wo ome amo wow SEINE, wo ba wo we fm) wm we om weg[m L000m L mW ee CNCEIDIITIE La | 0 mm ow jw we we ow Tm eie es Exygen Research EEOESO0 Page31 0f 110 000054 ------------------------------------ InterimReport#1-Analysisof Ouisle Water Samples ExygenStudy No: PU0OLA0D Table II. Matrix Spike Recovery of PFOS and PFOA in Water `Samples Continued so emsEL mC orma nemn || we merrell am cunmmsemnoines| | cumommperatas m|t| Cw em] we fam] we| wwe] I en ww ow wm mew www wwe on mE. (|Z TTI DD Semen (T0002 mmm| | ew L|ZIDL ww| ow ww comme|7 0D LIZVD LO Sonsem || wn wm || SIRI || wo wim 5 [oo] men oe Ca, gh | E | E wm e[s| asrme wsemme - --c--umo--msm --ei--sntn--i || | wn am |e| een woo | we wo monn | nv | wo - TAS rar on. pta | |woo| evnnn veou oy[om] eono sweoen - cuunmgmeirnont||2| pe U0 || a ow we ew mit ExpResearch Page 320110 000055 r--m------------------------------------------------------------------------------------------------------------------------------ Interim Report #1-AnaolfOyaskdialse Water Samples ExygenStudyNo.: PO001400 Table IIL. Matrix Spike Recovery of PFOS and PFOA in Water Samples Continued iit apaEE i Ee wr eFrr etm , ||ee| 0nme C fenm -- = ngmzmmimeen| C nm| ow mm (nm. comtapivrw ise| | a nn vn + || vo. Num | nw ele|TT TT TT somerset |_| en nin] wm w- ow onmamesmnmn ||T - ancien| em] mm ow meres re fe] vm Zoe, olen Jl mm ow TEreE[ou welte wm m|e]m wm c em to me n|| SoTn T |NwT m Le o e ee --e ExygenResearch Figs Pa 33g of1e 10 000056 ------------------------------S---- Interim Report #1-AnalysisofOakdale Water Samples. Exygen Study No. PO001400 Table Ill. ia Matrix Spike Recovery of PFOS and PFOA in Water Samples Continued atptS SITeT TrEes "EHEE,E rbd ri Sm tn oke | . un a |o|n| wme oeno4 [f om|] mw m w ww we menses ey wn fm] we a oSTm Eh Ee L || |con| we wn 5 few| nw wm [so] eww Tmo (mlm re ole ow meno tito wR | | wy ole wm an || me oll. ow o-oo STL | sv a e || we ww cmorotengethese|I| z oso e m + ||.rm = om Zerme ee |l ww fuo| ww ||ey www fo] wo ww wm ow cw umenT er Ee E| ||| ry ww wfonm]] n wm owm ow Exygen Research ; Page 340f 110 000057 ----------------------------------ein--em ------------ Interim Report #1-Analysis ofOakdale Water Samples Exygen Study No.: P0001400 TableIIL. + Matrix Spike Recovery of PFOS and PFOA in Water `Samples Continued i Ee i TE ie wa I Aw ww = fled. mee (2 2S Sf SATIRE Lois vot cover 0 Jo] ramen WT | | um i fn] CIEL || to sen vo fimo] TT Tr anntamed Smo = wr ve we ow 0 ww we =7 Tpit RED ) Page 3501110 000058 em reree e ee e r ee Interim Report #1-AnaolfOyaskdialse Water Samples EBxygenStudy No.: PO001400 Table IV. Surrogate Spike Recovery of "C PFOA in Water Samples Ueoron Egon TTTSamplT e TT e`Sepked RecoverReeemd Recovery CaC0osun40e4os5pskk 0 Conscct OKOLKALLMNGGHWA-NWEE0000%500331100 OKLMNGW-W30050310 smsoo sssww wwno CR C`oCovnesstecRse.p Coasts (OKOLKMLNIGNHGWHN0H00550331100Dup OKLWNGWWSOGSIIDLowSpkasiph w wo aae Sooo 470 =uos Congas? OKMNGWWSCORIIOHGN SMe SOs S00 U0 6 CCoonoescadacoesssppkk `Conse OKRMLGAHWGBW0N2B5S0331100 OKLNGW-WB0050310 smmoo sssow so des we = `cCooovnss0i8cReep Cobuild OKLUOONKKOLWINWNGECHOHCANHEBNITITOI0LG3o1Gw01S0w0ipeSpp Sm F0a0 mS80 or 11 COOGMT OKLMN.GW-WEOGSONO Hoh Spke 50> 50000 300 79 cCoomnssaeesrrzassppkc Consasiz OOKRLMING-GNH-ZW2B5-00005500331100 SUINGHANZE0020310 xsmoo usswm m0 mm 6@5 v CCooonsaeutztRaep Congeatd OKUOKNL-MGNGWHAW2Z5-000.5005301301005. OKLWNGWNVZSOOBIOLmSpleSep 020 5X0 Tseke S210 .. 104 Cmeits ORMNGNWIEORIMOKghSpkeSpe S00 0 58 coCosneaesatssSppkx cConosetastcetroep OKOLRMNU-GGHW-WASE300.0088013100 O OKLNRIOWO -WE0NGE0O 310 sswoe dwoes9 Fw a m sEtS oCoospue4a1t7e Ciits OOKKMONDKOLNWAWG.SGHIW.O-WOWEW3IIGOO0L80oEw3S1S0HpSok00kepeHS.SpOGpP:d 5s 00 t270 50000 42500 255 85 cCoCvoeosmsozasosapeL Kk OOKRKLLEMMIMNNCGGHH.--4#1222000655-000.040555600333111000 0 mo mao0m ws wo am = CoCvosnae4ezs0zRyep CObHZ2 CKOKLOLVKMNLGGMHNWNVAGZNH0Z5WS-20O005O35R.00M351O003SL1Dao0kpwe Sppb ww2% S000 6240 5== COOSHZS OKLNNGW-WZISOISIOHONSpkeSop S000 OOD 78 c`oCnosoasasdzzssSopkh `coneaszs OO`KROLLRNNI.A-GNGW.-.O2WW12N51Z5.I.S00000G55506G33311H000 ONGI.WZ160050310 ssoo wmwme wo won xti2em soa a coCoosoeseuzctzRsep CCooeoadcizzts OOLKM(NNONGKGWIWWNWZNZIGISHSOOT2JH1SM5C0OS0NO5GL0No3S1wp0SkpDelpeOspspp 52X0 SOD 34000 53 71 ee ree r Iohre v.ryigihPFmOaAlrvye hesuhnediodusnamdpl1e ,arecosvweriyhV"ePsFOAreVcaey GHEY Exygen Research CSIP Page 36 of 110 000053 -------------- InterimRepert #1-Analysis ofOskisle Water Samples Exygen Study No: PODO1400 Table IV. Surrogate Spike Recovery of Continued C PFOA in Water Samples ExDon DeSsacmrippltieon ee Spiked RTeCc.oPvTFeOrsA Recovery gl) gl) 0) CCO0064442288S5p 0 Cooseiza OKLLMUNN.SGWHWIZ2D001.00.0005500331100 OLMN.CWW20100.080510 mm00 ssmo woms wae w CaCtos0usc4asn2r0en COOSA OKLOUKNLOUGKNWLGWHUZWNIZG00IOWD02.0R01S.00.005L.0o035w1003SD1a0bpa Spr wmoo S000 4as r0 w50 COUBA31 OKLMN.GWWZDTO00SIHNiDnSpb Sogp> 50000 30200 60 CCoo0oso4aasss2 5SppkF Coosasss OOOLKKmLUNMONNWG..GWPH.N-WPT7?-.-000.0.05085000333111000 wI w w asoo os coCoosnes4isazzsRep COBH OKNGCWKKPLLUWNIIGNOWOG.GPHWITPN-O?0L005o00w53S013p01iD0apSped 2wsam S00 4620 oas os COOBMTS OKLMNGW-PWTOOSGSIOHGh SpRe Shop S000 300 56 coCoOs0BuAiTsTs CO0B4438 OOKKLLUMNONGK-WLG-NWT-R-GITUPR-IPTOIROOI0OP0S110S0.O0HL5oo0hw3SS1pp0kheo SSopppbb. S2000 60000 Gs0o0 51300 o10z5 cCovasesassz Sike4 Coosassz OKRLUNIGNWO-PWH-BP.E00005500331100 ORLMNGW-PHEDGSIH0 wsoo smwne wwes wa & c`oCoasoeaaisszsRsep CoOBU4s OK(OOLKLLUN.NNGWG.GPHHY-BP--W0PB.-0W50L00B3o51On00S1OOp0kpSeSIp0ro w wo wa2 && S00 W070 COBH OKLMNGW-PWSOOKSIONGhSphoSOs S000 200 2 CaCnoCo0osinansgidaasssopkt) OOLOrLUINnNOGWWWPoPHHeSE0D000o55e00c33a11r00d m0o owoe wr wo 5 conCosoissttssir op COMMS OKLUOONKKGLLHNUN-NGP.HGW-HOP-NLPGOH-TS0.O00L500o53w04S501pD0kipaSpd m wa a S00 40 &a COOB4MD OKLUINGH-PHBHONOSSkOeSOIppOo 50000 20 50 Ccoovosanasso sSpKk `Coossizh OOOKRULLIIANNG.-O6WS1N10100222.:000.0.0505500030541100D wsow ssao ow0s ae & Cc`oC0oBnaasasdosren CON OKOLLUNLNGVSNWWGWEWWBSIIGO02100202500L00o300w1580SD1p00ipk3eS10o m 2 dewo 5000 080 @50 101 COOnMssa --_--_-- OKLMNGW-WSI0Z00SI0Hgh SpSOom0 50000 2600 68 Naotme:h Sincea isnstu huri s mdanbmn.shaave reunydedresus,recovery vloesmay varysigh Exygen Research eugene Page 370110 000060 --_ Interim Report #1-AnalysisofOakdale Water Samples Exygen Study No.: PO001400 Table IV. Surrogate Spike Recovery of C PFOA in Water Samples Continued "CPEOA Evifo SE Dseanign ooratas Racosd RacGo8wry cCoCoeonentuessatisssppsutn conmiash op fOremGaHmNEmmIDe0e05ns10 HWE) fmwooo oww ww mWdew wo owom CDTouoRrtiEs SoOIrnuSAwmNaosCIwmBSAmOODoENElLSo1o0uSDMseupemSoCops 002000 SdwHmO owa8 ScooClaoimsusaissssixcs comics ep OLoOALmRCIaWNnENMEEGDEET1L0000.150550003331100 Simonwarvro0s03D F mw o Rwwm wom om CDfososolusescoO miOAM iROiWWN mEINmGI SeouOiSaMDtS s0ciSy WO EMo1 mSCY fcoooaoitcsbi?oeSrnodc coast Bop SoSiwimmaoonnnwowwaea0soa0500s55e020s00000 Shinonwzo00000 asw oo mwamw oToam wom ow CCSoiveosiudtssss OKoOwIMDOMWONNNIOWOCRNOGAIDIIOXHSOL0ghw9SN0pe0e sHso SGma0nom28y0 ou 83 cSoonoemveieaerrsrsssxch covert Top oSOiainnGownEwzaEos20005es0s300098 LinO25 0.050000 awGooo wawme mom wm o CCfoommciinctse roeqaOrRorANNeWGERs0 OtIaRXnNt0eSt S1 E Wm O BCwm8TT Ccoomceeoranstsssot. comarsey aS SmOoNN nAwLatS2ao0vr5ie0e2sn0s0 SLi GWWD0050508 2swoo dww mnm sow wo wom CSosRsuTre OmOOo WMnGa HINGSo0r03Ia000Ig SS000ooim088 fiConoCmaoiarrarsepr commure es pSmcum a sonwowm siazr025560d520000 Sun ons0500 SPoEoo aw we wor om ow SSCoosnooduerrs OoRuCMmONCMOwWOnNoIZciHOm0h0S0Sopk00eShW07E SWw 0O00 mM4 0 %9ow0 a met:aScninusrey .al hows unde sn ln ayc ary hy Exygen Research am Page 380f 110 000061 ----------------------e-- ee--ee-- s e ----T ---- Interim Report #1-AnaolfyOsskdialse Water Samples. [Exygen Study No.: P0001400 Table IV. ' Surrogate Spike Recovery of C PFOA in Water Samples Continued Een sampio TT vcsron Souas Recovered Racor cCoovCssosunsszSuspsxxn OCODCDNUWONaNIZTIT OD50008560803%%000900 as%o00 wwa oom o0 cComSommiuuetizssison owmCnICcRBLwLACvN-WIGNTHINo2SAB07i600o005n90s50p000esy SW GKo w&w % ooWwf Coniss OWQIOM MISMHYG SnSR op m0 WTO cmLoe`cuCusososttssepcop SOOLN-C COHNWWIH DNEELS 0000%50005 asSooo a se o wowwm pcrooosamsisier Sota oKIONCGDLNUANZOGRHRSWWCZOR0O0BI.00R0L550o030s0Oeops Wm wD oww00 1oo2mw1 C06uiss ORNNGHWIOIOINAShad 00 ID TO CCmoaonCuuoiiegouooisSoxxo OU`OONRARGNMH.GGNHHW2A220N1D021.0200.50.050053300%99 EmW oF www ow comCsaosossuotsRes CKOIKINOMGMnLWCOMNWD221I2.O0O50T830m080Ou9eLpSVS | WmmwO om0om oown 100 Css CRINGWWIOTZOIIGOn SeSoph 0 TD TO CcoonoastotiaioesiSsspFe oCRuANnNHIWWa000000620830T00S osoo To s ww wwm ww c"oSComoosisanutsrssep ORUONXGGWNNWNREOODWKaOI0.RI0I0EO60N02S0DI0peSp. WwfOo omSowO oTomwO Conds] CO WSM O NOSokeH Oppe 00 AT 8 cS"ooCmcomsausnstsesosns oSOmAeeNnCwwW1.E0Ww0A5o000o5t20a13t10o0 wswo dwW omm wwows c"oCSvovosoiosneninn ORAONGGIDWLAOGIC.AB00I0500M31a0SS 0m moowwDwnon ide CUNGHMIOTSONISIe Soh 000 MED Ccoocsmotsvaoesztssoi CSOIumN aOGPWpHP2Ws0E0D5o00u0s3i00o Gsw aoo swmnw e owow c`oCosoisnize0a Gooisor OOKISDNaGmHNMGZHIOWwGRKaI00O5L005n1DS0peesp Xmm 0w0 e eowm wow eC--ots--eOe DM--ON--AN--ZO--AI-- O O-- rg --S0-- 0 --HO-- D --&-- Not: ince Bi sunny iashoesrund en,eco oemayvi SY EGG Exygen Research Page 390f 110 000062 InterimReport#1-AnaoflOaykdsasle Wate Samples ExygenStudy No.PO0DI00 TableIV. Surrogate Spike Recovery of 'C PFOA in Water Samples Continued a Byae n mmSemm ple ----rSes-- kaareReRc-- oovetre ed R-- ar cory B beseipen ogy gt 0 cCCoonmsastiozssosSsopk cr`oGCnoioosivoseotrrnen Goin cpomgsmiecstroyspin coDCmoeepnioezRses COMET OOLODILNONCHGH-HAAAWWII0S00O0550002331100D OUOGMRLNNAGGHCHFHW-IPWOWSU3OO0O0C5o0n3S0aas ORMMOW WOOD An Se pre OOOruNNGGWCEE025500231100 OUNK OCNLPMHUOGTNP-IN HWO0DL0EoG 5Lv03S1pDDiheso ORMGWPWEOHeOhSHoSSIorOo aw0moo wwm ow 5wows amS0o omammo omo02w ooo wm TT osW om mGsaomoow Hmo wO wdoDw oaw 50000 S60 78 cSeonassotrx0 oCnoSinoseiiisasttss SCoEotTe CcoCoiosmmieeetstspsc comCoiacitEsaisen S021 cfoernxseesspdre cCoCvoetoUsznzEsep COE ScosCotoimszneiusn coCSsoiovsuzeterhen Cooiize OScOaWnWoEw0waesco0s3e1aDa roSDrmenreWSe0s0a3]10i COAKLNINNOGWNEWWOSOSOIIODNLoGuSShheesSop SOoDANaGWWnPPIIDO 0530001100 OKLIfO NoGrWImR WrIsDOnN OaDeNOL s53Le1t0ay Se0 ORIN IWIDOHnMSSpeIShOpb forrmiuemmiemaioinwistre00ei5i0t3d1y) ORCOURAANNNCGNWC.PWAWPIW1I0I00LTL3o1vOH0SDIppbIesOy ORUMOWOONI te pe ompGsaononossvmim05is0301a ORUNpOSeNmOD mrOeNsON UimhS]mDepses ORMNGWOGHMONGGpetih msoo sm0o 0ow w Tw o w wweoaa GS0000 W40m 9TO Gm0oo wwm on e%@ o oOow zem0 =ow 50000 400 EB o mw e owmsm ow 0oo o wuolw 5o9w S072 awGmoo owmwoomow SWGooo soommme om 10s wo m0 8 F Tons nao oT an -- Exygen Research an Page 400f 110 000068= ---------------------------------------------------------------------------------- InterimReport#1-AnalysisofOskdale Water Samples Fxygen Study No PODO1400 Table IV. Surrogate Spike Recovery of *C PFOA in Water Samples Continued Exygen TTST ampleTT a `Spiked ReCuc-onPvaFtrOeAd Recovery Description og) og) 0) coCoOsORtAsSsH OKLMONKGLWMTNR.IGZHOTORSIPI2O0L.o05w0S3p10keSppd Ss 000 aS520 1@10 CooBAS2 OKLUNGWTRPZO0SIokOeHEpph 50000 52000 108 ---- TTStTandardDRovsteons 21 Nootm:tShinvcealUessisntmheraywadbitlee.shows cundadresus, ecovry os may vySighly Exygen Research BDHHU Pa 41g of1e 10 000064 ---------------------------- eo Interim Report #1-Analyss of Oakdale Water Samples Exygen Study No.: PO001400 Exygen Research +4 Page 4207110 000065 ----e Titer Rep#1-oAnarlystisofOakdale Water Samples Exygen Stidy No. PO00I400 Figure 1. Typical Calibration Curve for PFOA in Reagent Water oo oul i| Fxygen Research SRO Page 4307110 000066 -- imi------ Interim Reprt#1-AnalysisofOskdle Water Samples Exysen Stady No: POUOIAD0 Figure 2. Extracted Standards of PFOA in Reagent Water, 25 ng/L and 50 ng/L, Respectively ER ---- :Z | mmm aoa T fBuosme Exygen Rescrch Se Page dof 110 000067 ------------ nt -- ere -- s trimReport#1-AnsysisofOnda Water Samples Exygen Sindy No: PO001400 Figare3. PFOA in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, Respectively BR 3= ~ m emer meh Wms ---- WERE go ve Note: Alinear lot ofPFOAwasused to calibrate the instrument. The two peaks shown in Figure 4 are due to different isomers present in environmental samples. The area counts for all isomers present are included to report one total PFOA value. ExygenResearch cROGLG Pege450f110 000068 term Report #1-AnalysisofOkdale Water Samples Exygen Study No. POOOI400 Figured. Chromatogram Representing an Oakdale Water Sample Analyzed for PFOA, DF=100 (Exygen ID: C0064522, Data Set: 032405CR) BRE ara coo oe LI Exygen Research am Pa46gof1e10 000069 Interim Rep#1-oAnarlystisofOskcale Water Samples Exygen Study No. PO0OLA00 Figure5. Typical Calibration Curve for C PFOA in Reagent Water zffo[ l Le Exygen Research "Th Page 47of110 000079 termReport#1-Analysi ofOakdale Water Samples Exygen Study Nos: PO0O1400 Figure 6. BG Extracted Standards of C PFOA in Reagent Water, 25 ng/L and 50 ng/L, Respectively TR eee Em i i =mmmeee Fooonts] `Exygen Research . Page 48of 110 000071 nein Report #1-AnslyisofOkla Wate Samples ExygenStyNo: POOLOD Figure 7. C PFOA in Reagent Water, 50 ng/L. Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, Respectively Le i: olin WERT -- son i a0: NBR = Exygen Research Yidyge Pa49gof1e10 00072 -------------------------------------------- Interim Report #1-AnalysisofOsdsle Water Samples Exygen Study No. 001400 Figure8. Chromatogram Representing an Oakdale Water Sample Analyzed for C PFOA (Exygen ID: C0064522, Data Set: 032405C) W RTTL a !| | Exygen Research : Page $0010 000073 Interim Report#1-AnalysisofOskdale Water Samples `Exygen Study No. PODO1400 Figure9. Typical Calibration Curve for PBS in Reagent Water jou : P| 2a i: Tow " Exygen Research Se PageSTof 110 000074 _ trim Report #1-Analyss of Oakdale Water Samples Exygen Sudy No: PO00L400 Figure 10. Extracted Standards of PFBS in Reagent Water, 25 ng/L, and 50 ng/L, Respectively WOR TR a ee 0" iPo e 0 NRT ---- ou . Pif L Bogen Research auth Page 520110 000075 trim Report #1-AnalysisofOakes Supe Exygen Study No: POOOL00 Wim om ms a Figure 11. PFBS in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, Respectively i 1s 1WToneFseaodamn RR smMsi edqui R mYFinTs nner Lo we P ff -re p+ so inte roe sess mun un we nme 7 1 5m wo 1 om se a am BE unm TER `Exygen Research Page 530f 110 000076 InterimReport #1-Analyss ofOskdsle Water Samples ExygenStudyNo. PO0OL400 Figure 12. Chromatogram Representing an Oakdale Water Sample Analyzed for PFBS, DF=100 (Exygen ID: C0064522, Data Set: 032405CR) WRT feernest Bl i" Ue FRAT RR HR agg ExygenResearch Ants Page S4or110 000077 ------------------------------------------------------ InterimRept#1-AnalysisofOskdsleWatce Samples Exygen Su Noid PO0Dy L400 Figure 13. Typical Calibration Curve for PFHS in Reagent Water = commas it mem ef fa FEY `Exygen Research Page SSof 110, 000078 ----------------------------------------e--e-- Interiea Report #1-AnalysisofOakdale Weter Samples Exygen Study No. PO0D1400 Figure 14. Extracted Standardsof PFHS in Reagent Water, 25 ng/L. and 50 ng/L, Respectively W-RISTRELwr a [| is | Ca on WEE iz ia= os Exygen Research aden Page 56 of 110 000079 ---------------------------------------------------------------------- Toteri Report#1-Ansys ofOskdale Weter Samples Exygen Study No: PU00L00 Figure 15. PHS in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, Respectively 1 EE ---------------- 3 w7 To nitom LK Women ee fo= i= a, Wm -- $ sou f1 o a Exygen Reseach evnian Page 5701110 000080 Interim Report#1-AnalysisofOakdale Water Samples Exygen Study No. PO001400 Figure 16. Chromatogram Representing an Oakdale Water Sample Analyzed for PFHS, DF=100 (Exygen ID: C0064522, Data Set: 032405CR) BRR i i: Exygen Research Sam, Page S80 110 000081 Inicrim Report #1-AnaysisofOse Water Samples Exon Study No: PO001400 `Figure 17. Typical Calibration Curve for PFOS in Reagent Water i31 s Exygen Research fd Page S90110 000082" Interim Report #1-Analysisof Oakdale Water Samples `Exygen Study No.: P0001400 Figure 18. Extracted Standards of PFOS in Reagent Water, 25 ng/L and 50 ng/L, Respectively WER | : re w= NR -- 8 mo} | Eten Research HEHE Page 00f110 000083 BEJ nt ee nei Report #1Analysis ofOse Wotr Samples Exygen Study No: PO00L400 Figure 19. PFOS in Reagent Water, 50 ng/L Fortified Reagent Water, and 500 ng/L Fortified Reagent Water, Respectively =WOSRR none op = WERE -- f$mo) ? of Ems ----. i] | Exygen Resch HEEL Pesto 000083 ~ J -- Interim Report1-Analysis ofOakdale WaterSamples ExygenStudy Noi POO01400 Figure 20. Chromatogram Representing an Oakdale Water Sample Analyzed for PFOS, DF=100 (Exygen ID: C0064522, Data Set: 032405CR) WE RR BR . = i= TTT TT SE RE Rw RT Exygen Research SSL Page 6206110 000085 Intec Report #1-AnsolfOyaksdialse Water Samples ExygenSudy No: POOI4O0 APPENDIX A Study Protocol P0001400 (Exygen Study No. P0001400) with Analytical Method: V0001780:"Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LC/MS/MS" Exygen Rescarch Frei Page 6306110 00008g