Document ZBrGRxxOxLL2JoQggBqpKMB2J

Project / Study Archive Request I Shaded areas for Archivist use only I Requestor Name Kent Lindstrom Phone 651 778.5352 Date 04105105 Request for: Archival ~ 0 Retrieval Report laFC I I LIMS number: E05-0210 I Title/Summary: Interim Report #2 - Analysis of Surface Water Samples Study Title: Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS) and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program Executive Summary GrouD: 3M Decatur ~ Group Project Number: Exygen Protocol Number PO001131 Project Lead/ Study Director: Gary Hohenstein (data management), Mike Santoro (Sponsor), John Flaherty (Principal Investigator), Jaisimha Kesari P.E., DEE (Study Director, Weston Solutions, Inc.) Contract: NA Contract Proiect #: NA Analyte(s): PFBS, PFHS, PFOS Test System (Sample Matrix): water Project Type Ix) Analysis 0Degradation c]Duct Residue Analysis 0Ecotox Method Validation 0NA 0Phys/Chem Properties ResearchMethod Development 0 I Regulatory Status: Non-GLP I GLP Other: m i a t i o T D a t e : 11/05/04 (Protocol Signed by Study Director), Analytical Start Date for Interim Report: 02/14/05 Completion Date: Analytical Termination Date for Interim Report #2: 02/17/05 Signed by Study Director 03/23/05, Signed by Sponsor 03/30-31/05 Electronic Media: Data CD: FTIR Data Instrument Data 0None (raw data files archived at Exygen) Page 1 o f 2 Project / Study Archive Request Archive Date Scan Date Key Words: Decatur Memorandum of Understanding, MOU, GLP, Protocol PO001131, PFBS, PFHS, PFOS, E05-0209, E05-0210, Interim Report #2 Comments: Distribution Point Gary Hohenstein (Interim Report #2 PDF) Jai Kesari (Interim Report #2 PDF) Date 04/05/05 04/05/05 Page 2 o f 2 INTERIM REPORT # 2-Analysis of Surface Water Samples STUDY TITLE Analysis of Perfluorobutanesulfonate(PFBS), Perfluorohexanesulfonate(PFHS), and Perfluorooctanesulfonate(PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REOUIREMENTS EPA TSCA Good LaboratoryPractice Standards40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE March 22,2005 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St. Paul, MN 55144 Phone: 651-733-6374 PROJECT Protocol Number: POOOl 131 Exygen StudyNumber: POOOl 131 Total Pages: 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 GOOD LABORATORY PRACTICE COMPLIANCE STATEMENT Exygen Study Number PO001131, entitled "Analysis of Perfluorobutanesulfonate(PFBS), Perfluorohexanesulfonate (F`FHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program," conducted for 3M Company, is being performed in compliance EPA TSCA Good Laboratory Practice Standards 40 CFR 792 by Exygen Research. hn Flaherty J L n c i p a l Investigator Exygen Research Study Director Weston Solutions, Inc. Michael A F Sponsor R esentative 3M Company Exygen Research & Date Page 2 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: POOOl 131 QUALITY ASSURANCE STATEMENT Exygen Research's Quality Assurance Unit reviewed Exygen Study Number POOOl 131, entitled, "Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LCMSMS for the 3M Decatur Monitoring 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 Investigator and Management and to the Study Director. Phase Date InsDected Date Reported to Date Reported to Principal Exygen Date Reported to Investigator Management Study Director 7. Raw Data Review 03/10,11/05 03/14/05 0311 8/05 0311 8/05 8. Interim Analytical Report Review 03/17/05 03/18/05 0311 8/05 0311 8/05 `Note: All in-lab inspections will be documented in the QA statement for the final analytical report at the conclusion of the study. This QA statement involves only the review of the interim report and associated raw data. Exygen Research Page 3 of 100 Interim Report #2-halysis of Surface Water Samples Exygen Study No.: PO001131 CERTIFICATION OF AUTHENTICITY This interim report, for Exygen Study Number POOO1131, is a true and complete representation of the raw data. Submitted by: Exygen Research 3058 Research Drive State College, PA 16801 (814) 272-1039 Principal Investigator, Exygen: O0L m f d 4 Exygen Research 3bdk Date Exygen Research Facility Management: 'Richard A. Gradzini / Date President f - Exygen Research Study Directgr, Weston Solutions, Inc. Weston Solutions, ~ n c . Sponsor Representative, 3M Company: , M a Michael A. Sant ro P Director of Regulatory Affairs Exygen Research Date ' Page 4 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO00113I STUDY IDENTIFICATION Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program PROTOCOL NUMBER: PO001131 EXYGEN STUDY NUMBER: PO00113I TYPE OF STUDY: Residue SAMPLE MATRIX: Surface Water TEST SUBSTANCE: Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate(PFHS), and Perfluorooctanesulfonate (PFOS) SPONSOR: 3M Company 3M Building 0236-01-B-10 St. Paul, MN 55144 STUDY DIRECTOR: Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 STUDY MONITOR: Michael A. Santoro 3M Company 3M Building 0236-01-B- 10 St. Paul, MN 55144 PERFORMING LABORATORY: Exygen Research 3058 Research Drive State College, PA 16801 ANALYTICAL PHASE TIMETABLE: Study Initiation Date: 11/05/04 Interim Analytical Start Date: 02/14/05 Interim Analytical Termination Date: 02/17/05 Interim Report Completion Date: 03/22/05 Exygen Research Page 5 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 PROJECT PERSONNEL The Study Director for this project is Jaisimha Kesari at Weston Solutions, Inc. The following personnel fiom Exygen Research were associated with various phases of this interim portion of the study: Name John Flaherty Karen Risha Paul Connolly Chrissy Edwards Mark Ammerman Amy Sheehan Title Vice President Scientist Technical Lead-LCMS Technician Sample Custodian Associate Scientist Exygen Research Page 6 of 100 ~ ~~~~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No .. PO001131 TABLE OF CONTENTS Pane TITLE PAGE ....................................................................................................................... 1 GOOD LABORATORYPRACTICE COMPLIANCESTATEMENT.............................. 2 QUALITY ASSURANCE STATEMENT .......................................................................... 3 CERTIFICATIONOF AUTHENTICITY........................................................................... 4 STUDY IDENTIFICATION................................................................................................ 5 PROJECT PERSONNEL..................................................................................................... 6 TABLE OF CONTENTS..................................................................................................... 7 LIST OF TABLES ............................................................................................................... 8 LIST OF FIGURES.............................................................................................................. 9 LIST OF APPENDICES .................................................................................................... 10 1.0 SUMMARY................................................................................................................ 11 2.0 OBJECTIVE ............................................................................................................... 11 3.0 INTRODUCTION....................................................................................................... 11 4.0 ANALYTICALTEST SAMPLES.............................................................................. 12 5.0 REFERENCE MATERIAL ........................................................................................ 12 6.0 DESCRIPTION OF ANALYTICALMETHOD ........................................................ 13 6.1. Extraction Procedure ............................................................................................... 13 6.2 Preparation of Standards and Fortification Solutions............................................... 13 6.3 Chromatography ....................................................................................................... 14 6.4 Instrument Sensitivity............................................................................................... 15 6.5 Description of LC/MS/MS Instrument and Operating Conditions........................... 15 6.6 Quantitation and Example Calculation ..................................................................... 16 7.0 EXPERIMENTAL DESIGN ...................................................................................... 17 8.0 RESULTS ................................................................................................................... 17 9.0 CONCLUSIONS......................................................................................................... 17 10.0 RETENTION OF DATA AND SAMPLES ............................................................. 17 Exygen Research Page 7 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Table I. Table II. LIST OF TABLES Pane Summary of PFBS, PFHS and PFOS in Surface Water Samples...................19 Matrix Spike Recovery of PFBS, PFHS and PFOS in Surface Water Samples.......................................................................................................... .20 Exygen Research Page 8 of 100 ~~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 LIST OF FIGURES Pane Figure 1. Typical Calibration Curve for PFBS in Water................................................ 23 Figure 2. Extracted Standards of PFBS in Water, 50 ng/L and 100 ng/L, Respectively................................................................................................... .24 Figure 3. PFBS in Reagent Water, 500 ng/L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively......................... ..25 Figure 4. Chromatogram Representing a Surface Water Sample Analyzed for PFBS (Exygen ID: C0052282, Data Set: 021405C) ................................. 26 Figure 5. Typical Calibration Curve for PFHS in Water ............................................... 27 Figure 6. Extracted Standards of PFHS in Water, 50 ng/L and 100 ng/L, Respectively.. ................................................................................................. .28 Figure 7. PFHS in Reagent Water, 500 ng/L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively.. ......................... 29 Figure 8. Chromatogram Representing a Surface Water Sample Analyzed for PFHS (Exygen ID: C00522831, Data Set: 021405C) ............................... 30 Figure 9. Typical Calibration Curve for PFOS in Water ............................................... 31 Figure 10. Extracted Standards of PFOS in Water, 50 ng/L and 100 ng/L, Respectively.. ................................................................................................. .32 Figure 11. PFOS in Reagent Water, 500 ng/L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively.......................... .33 Figure 12. Chromatogram Representing a Surface Water Sample Analyzed for PFOS (ExygenID: C0052282, Data Set: 021405C) ................................. 34 Exygen Research Page 9 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOOl 131 LIST OF APPENDICES PaRe Appendix A Study Protocol POOOl 131 (Exygen Study No. POOOl 131)with Analytical Method: VOOOl780:"Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LC/-MS/MS"...............................................................................................35 Exygen Research Page 10 of 100 Interim Report #2-halysis of Surface Water Samples Exygen Study No.:POOOl131 1.0 SUMMARY Exygen Research extracted and analyzed surface water samples for the determination of perfluorobutanesulfonate (PFBS), perfluorohexanesulfonate (PFHS), and perfluorooctanesulfonate (PFOS) according to Exygen Method VOOOl780 (Appendix A). The limit of quantitation for PFBS, PFHS and PFOS in water was 50 n g L and the limit of detection was 25 ng/L. The PFBS, PFHS and PFOS residues found in surface water samples are summarized in Table 1. The average percent recoveries L- standard deviations for PFBS, PFHS, PFOS in surface water samples were 139% 2 21%, 95% 2 7%, and 96% _+ 12%, respectively. 2.0 OBJECTIVE The objective of the analytical part of this study was to determine levels of perfluorobutanesulfonate (PFBS), perfluorohexanesulfonate (PFHS), and perfluorooctanesulfonate (PFOS) in surface water according to Protocol POOOl 131 (Appendix A). 3.0 INTRODUCTION This report details the results of the analysis for the determination of PFBS, PFHS and PFOS in surface water using the analytical method entitled, "V0001780: Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LCMSMS." The study was initiated on November 05, 2004, when the study director signed protocol number POOOl 131. The analytical start date for this interim report was February 14, 2005, and the analytical termination date for this interim report was February 17,2005. Exygen Research Page 11 of 100 Interim Report#2-Analysis of Surface Water Samples Exygen StudyNo.: PO001 131 4.0 ANALYTICAL TEST SAMPLES Forty-four surface water samples (Exygen ID COO52282-COO52299 and COO52310C0052335) were received on wet ice on December 04, 2004 from Charles Young at Weston Solutions, Inc. The samples were logged in by Exygen personnel and placed in refrigerated storage. Sample log-in and chain of custody information will be kept at Exygen Research until the conclusion of the study; they will then be located in the raw data package associated with this study. Storage records will be kept at Exygen Research. 5.0 REFERENCE MATERIAL 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 Exygen on April, 23,2003. The available information for the reference materials is listed below. PFBS and PFHS were stored frozen and PFOS was stored refrigerated. Compound PFBS PFHS PFOS Exygen Inventory No.. SP0000252 SP0002401 SP0002694 Lot # 101 SE036 430180-1 Purity (%) 96.7 98.6 101.2 Expiration Date 12/04/06 10118/06 04/23/06 The molecular structures of PFBS, PFHS and PFOS are given below: PFBS Chemical Name: Perfluorobutanesulfonate Molecular Weight: 338 supplied as the potassium salt (C4F$03X+) Transitions Monitored: 299 + 99 Structure: F F Exygen Research Page 12 of 100 ~~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 PFHS Chemical Name: Perfluorohexanesulfonate Molecular Weight: 438 supplied as the potassium salt (CsF13S03-K') Transitions Monitored: 399 + 80 Structure: PFOS Chemical Name: Perfluorooctanesulfonate Molecular Weight: 538 supplied as the potassium salt (C8F17S03-K') Transitions Monitored: 499 + 80 Structure: 6.0 DESCRIPTION OF ANALYTICAL METHOD The analytical method "V0001780: Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LC/MS/MS" was used for this study. 6.1. Extraction Procedure A 40 mL aliquot of the water sample was used for the extraction procedure. After fortification of appropriate samples, the samples were loaded onto a SPE cartridge conditioned with 10 mL of methanol and 5 mL of water. The eluate was discarded. Approximately five milliliters of methanol was added to the cartridge. Five milliliters of eluate was collected into a graduated 15 mL polypropylene centrifuge tube. Each sample was analyzed by LC/MS/MS electrospray. Exygen Research Page 13 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 6.2 Preparation of Standards and Fortification Solutions Individual stock standard solutions of PFBS, PFHS and PFOS were prepared as specified in Exygen method V0001780. The stock standard solutions were prepared at a concentration of 100 pg/mL by dissolving 10 mg of each of the standards (corrected for purity and salt content) in methanol. From these solutions, mixed 1.O pg/mL fortification standard solutions were prepared by taking 1 mL of each of the appropriate stock solutions and bringing the volume up to 100 mL with methanol. By taking 10 mL of the mixed 1.0 pg/mL fortification standard and bringing the volume up to 100 mL with methanol, a mixed 0.1 pg/mL fortification standard was prepared. By taking 10 mL of the mixed 0.1 p g / d fortification standard and bringing the volume up to 100 mL with methanol, a mixed 0.01 pg/mL fortification standard was prepared. A set of standards containing PFBS, PFHS and PFOS was prepared in water and processed through the extraction procedure, identical to samples. The following concentrations were prepared: Conc. of Fort Fort Solution Volume (ng/mL)' (pL) 0 0 10 100 10 200 10 400 100 100 100 200 * 100 400 of PFBS, PFHS and PFOS Volume of Fortified Sample (mL) 40 40 40 40 40 40 40 Final Conc. of Calibration Std. (ng/L) 0 25 50 100 250 500 1000 The stock standard solution and all fortification and calibration standard solutions were stored in a refrigerator (4" f 2OC) when not in use. Documentation of standard preparation will be kept at Exygen Research until the conclusion of the study; it will then be located in the raw data associated with this study. 6.3 Chromatography - - - Quantification of PFBS, PFHS and PFOS was accomplished by L C N S N S electrospray. The retention times of PFBS, PFHS and PFOS were 3.9mins, 10.4mins, and 12.6 mins, respectively. Peaks above the LOD were not detected in any of the reagent blank samples corresponding to the analyte retention time. Exygen Research Page 14 of 100 Interim Report #ZAnalysis of Surface Water Samples Exygen StudyNo.:PO001131 6.4 Instrument Sensitivity The smallest standard amount injected during the chromatographic run had a concentration of 25 ng/L of PFBS, PFHS and PFOS. 6.5 Description of LC/MS/MS Instrument and Operating Conditions Instrument: API 4000 Biomolecular Mass Analyzer Interface: Turbo Ion Spray Liquid Introduction Interface Computer: DELL OptiPlex GX400 Software: Windows NT, Analyst 1.4.1 HPLC: Hewlett Packard (HP) Series 1100 HP Quat Pump HP Vacuum Degasser HP Autosampler HP Column Oven HPLC Column: Thermo Fluophase RP,50 mm x 2.1 mm Column Temp.: 35' C Injection Vol.: 15 pL Mobile Phase (A): 2 mM Ammonium Acetate in water Mobile Phase (B): Methanol Time (rnin) %A 0.0 65 35 1.o 65 35 8.0 25 75 10.0 25 75 11.0 65 35 18.0 65 35 Total run time: -18 min Flow Rate: 0.3 mL/min Ions monitored: Analvte PFBS PFHS PFOS Mode negative negative negative Transition Monitored 299 -+ 99 399 -+ 80 499 + 80 Approximate Retention Time (min) -3.9 min. -1 0.4 min. -12.6 min. Exygen Research Page 15 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 6.6 Quantitation and Example Calculation Fifteen microliters of sample or calibration standard were injected into the L C M S M S . The peak area was measured and the standard curve was generated (using l/x fit weighted linear regression) by Analyst software using six concentrations of standards. The concentration was determined fiom the equations below. Equation 1 calculated the amount of analyte found (in ng/L, based on peak area) using the standard curve (linear regression parameters) generated by the Analyst software program. Equation 1: Analyte found (ng/L,) = (Peak area - intercept) x DF slope Where: DF = Dilution Factor, factor by which the final volume was diluted, if necessary. For samples fortified with known amounts of PFBS, PFHS and PFOS prior to extraction, Equation 2 calculated the percent recovery. Equation 2: Recovery (%) = (analyte found ( n a ) - analyte in control (ny./L)) x 100% amount added (n&) An example of a calculation using an actual sample follows (calculation is for PFOS only): Water sample Exygen ID: COO52282 Spk C (Set: 021405C), fortified at 500 ng/L with where: peak area intercept slope dilution factor - 84394 - 3070 - 162 - 1 ng/L PFOA added (fort level) = 500 amt in corresponding sample = 0 (Not Detected) From equation 1: Analyte found (ng/L) = 184394- 30701x 1 162 From equation 2: % Recovery = 502.0ng/L = (502.0 - 0 nn/L) x 100% 500 = 100% Exygen Research Page 16 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 7.0 EXPERIMENTAL DESIGN For samples designated as field matrix spikes, PFBS, PFHS and PFOS were added at a known concentration to the bottles in the laboratory before being shipped to the field. The samples were filled to a 200 mL volumetric fill line in the field. The samples were extracted in two sets. Each set consisted of one reagent blank, two reagent blanks fortified at known concentrations. One set contained five sample sites and the second set contained four sample sites, along with all the field blanks and field blank spikes collected for the surface water samples. For each site, a sample, a field duplicate and two matrix field spikes were collected. For each site, a laboratory duplicate was extracted and two laboratory matrix spikes were also extracted. 8.0 RESULTS The PFBS, PFHS and PFOS found in the surface water samples are listed in Table I. Fortification recoveries for PFBS, PFHS and PFOS in the water samples are detailed in Table 11. The average percent recoveries k standard deviations for PFBS, PFHS, PFOS in water samples were 139% f 21%, 95% f 7%, and 96% k 12%, respectively. 9.0 CONCLUSIONS The surface water samples were successfully extracted and analyzed for PFBS, PFHS and PFOS according to analytical method V0001780. 10.0 RETENTION OF DATA AND SAMPLES When the final analytical report is complete, all original paper data generated by Exygen Research will be shipped to the sponsor. This does not include facility-specific raw data such as instrument or temperature logs. Exact copies of all raw data, as well as a signed copy of the final analytical report and all original facility-specific raw data, will be retained in the Exygen Research archives for the period of time specified in EPA TSCA Good Laboratory Practice Standards 40 CFR 792. Exygen Research Page 17 of 100 Interim Report #2-Analysis of Surface Water Samples ~~ Exygen StudyNo.:PO001131 TABLES Exygen Research Page 18 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Table I. Summary of PFBS, PFHS and PFOS in Surface Water Samples Exygen ID COO52282 COO52282 Rep COO52283 COO52286 COO52286 Rep COO52287 COO52290 COO52290 Rep COO52291 COO52294 COO52294 Rep COO52295 COO52298 COO52298 Rep COO52299 COO52312 COO52312 Rep COO52313 COO52316 COO52316 Rep COO52317 COO52322 COO52322 Rep COO52323 COO52326 COO52326 Rep COO52327 COO52330 COO52333 COO52320 COO52321 Client C4 Sulfonate PFBS Sample ID Peffluorobutanwulfonat. DL3-SW-LOCOOI-0-041201 ND DL3-SW-LOC001-0-041201' ND DL3-SW-LOC001-0-041201 DuP ND DL2-SW-LOC001-0-041201 ND DL2-SW-LOCOOI-0-041201' ND DL2-SW-LOC001-0-041201 D u ~ ND DBC-SW-LOC001-0-041202 93.8 DBC-SW-LOCOOI-0-041202' 96.2 DBC-SW-LOC001-0-041202 DUp 97.5 DOU-SW-LOC001-0-041202 14000 DOU-SW-LOC001-0-041202' 14700 DOU-SW-LOCOOI-0-041202D u ~ 12800 DDO-SW-LOC001-0-041202 ND DDO-SW-LOCOOI-0-041202' ND DDO-SW-LOC001-0-041202 DuP ND DLI-SW-LOC001-0-041202 76.8 DLI-SW-LOC001-0-041202' 77.4 DLI-SW-LOCOOI-0-041202 Dup 77.4 DMC-SW-LOCOOI-0-041202 I07 DMC-SW-LOC001-0-041202' 97.6 DMC-SW-LOCOOI-0-041202D u ~ 104 DAA-SW-LOC005-0-041202 2460 DAA-SW-LOCOO5-0-041202' 3270 DAA-SW-LOCOO5-0-041202 DUP 3100 DAA-SW-LOCOO2-0-041202 379 DAA-SW-LOCOO2-0-041202' 456 DAA-SW-LOC002-0-041202D u ~ 432 Field Blank ND Field Blank ND DMC-SW-LOCOOI -2-041202 ND DMC-SD-LOCOOI -2-041202 ND Analyte Found (ppt, n@L) C6 Sulfonate PFHS Perlluoroheunuulfonat. ND ND ND ND ND ND 231 233 252 1620 1650 1600 ND ND ND 45.7 48.3 49.2 53.6 49.5 54.0 7980 7350 7880 375 433 445 ND ND ND ND C8 Sulfonate PFOS Perlluorooctanuulfonate ND ND ND ND ND ND 3460 2880 3920 5710 5820 5640 ND ND ND 179 185 213 284 257 283 18800 18000 19600 2780 2930 3760 ND ND ND ND 'Laboratory Duplicate ND = Not detected at or above 25 ng/L. NQ = Not quantifiable = Measuredconcentrationbetween25 ng/L and the Limitof Quantitation(LOQ)which is 50 ngL. Exygen Research Page 19 of 100 ~~ ~~ Interim Report #ZAnalysis of Surface Water Samples Exygen Study No.: PO001131 Table 11. Matrix Spike Recovery of PFBS, PFHS and PFOS in Surface Water Samples Sample Description DL3-SW-LOCO010441201 (CWSUU SpkC. 500 ndL Splke) DL3-SW-LOC0010041201 (COOSUU Spk 0. WOO Wl. Splke) DL3-SW-LOCOO14441201Low Spk (COOSUM. 500 ndL SpuU) DL3-SW-LOCOOl0-041201 High Spk (CWSU8S. 5OOO n e t Spllu) x Spikec 500 5oOo 500 5000 C4 SUlfOMte PFBS W F o u n d Amount in Sample Recovered Recovei (npll) (ngiL) (54) ND 748 150 ND 7090 142 ND 694 139 ND 7320 146 C6 Sulfonate PFHS 4ntFound Amount In Sample Recovered Recover (nm) (%) ND 485 97 ND 4560 91 ND 496 99 ND 4580 92 DLZ-SW-LOC0010-041201 (cwszznspk E. npnsplke) 500 ND 779 156 ND 516 103 DLZ-SW-LOC0010041201 (COOSZZM Spk F. WOO ndL S p W 5000 ND 7200 144 ND 4630 93 DLZ-SW-LOCOO10441201Low Spk (CMSUU.500 npnSplb) 500 ND 734 147 ND 492 98 DLZ-SW-LOC0010-041201 High Spk (cooaur. moo non spike) 5000 ND 7200 144 ND 4660 93 DBC-SW-LOCOOl0-041202 (CooOnO Spk0. W n#L Splke) 500 93.8 819 145 231 714 97 DBC-SW-LOCWl0-041202 (CooOnO Spk H. WOO npn Splke) 5oM) 93.8 7330 145 231 5060 97 DBC-SW-LOC0010-041202 Low Spk (CM52n2.500ndL Spike) 500 93.8 742 130 231 667 87 DBC-SW-LOCOOl0-041202High Spk (COOa?nl. 5OOO ndL Spllu) 5ooo 93.8 6830 135 231 4600 87 DOU-SW4OC0010-041202 (CooUnr Spk I. 500 npn Splke) 500 14000 12200 DOu-Sw-LOC0010-041202 (COO5ZZMSpk J. WOO n f l Splke) so00 14000 14800 16" DOU-SW-LOCO010041202LOWSpk (CMa2w.500 ndL Splke) 500 14000 15200 DOU-SW-LOCW14-041202High Spk (CWS22#7. 5OOO nwL Spike) 5Ooo 14000 14100 2" 1620 2130 102 1620 6160 91 1620 21 50 106 1620 5720 82 DDO-SW-LOC0014-041202 (COOS2288SpkK. 500 n#L SpuU) 500 ND eo5 161 ND 482 96 DDO-SW-LOCO014441202 (CoosUrC SpkI..WOO n p n S p h ) 5oOo ND 7240 145 ND 4590 92 DW-SW-LOC0014-041Z02 Low Spk (coo62alo. mn a spy.) 500 NO 794 159 ND 517 103 - DDOSW-LOCOO10041202Hlgh Spk 5oOo ND 5310 106 ND 4680 94 *Samplemidue exweds hsplking level slgnlficently;therefore.an accuraterecoveryvalue cannot be calculated **Pantwas removed hornVIE calwlatlonof average and standarddeviationa8 per email requestdated 0321105. ND = Not detectedat OT above 25 ngn (PPI). NQ = Not quantifiaMe= Maaswed concentratlionbe(ween25 I@.(ppt) and !he Limit of Quantllatlon ( L a ) which I8 50 I@.(ppt). Note: Sin- thb summaryt8Ms show rounded naultr. recoveryvelmsmayvarysllghtly from tho n l m s In the raw d8h. C8 Sulfonate PFOS MFound Amount In Sample Recovered Recovery ND 502 100 ND 4450 89 ND 506 102 ND 3840 77 ND 490 98 ND 4680 94 ND 515 103 ND 5440 109 3460 3840 3460 7930 89 3460 3800 3460 7090 73 5710 5710 571 0 5710 5820 10300 92 6720 9350 73 ND 505 101 ND 4600 92 ND 517 103 ND 5ooo 100 Exygen Research Page 20 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: PO001131 Table 11. Matrix Spike Recovery of PFBS, PFHS and PFOS in Surface Water Samples Continued Sample Description DLlSW-LOCO010041202 (COOPS12spk c. WO IldL S*) DLlSW-LOC0010441202 (COOS2312Spk 0, Iwo ndL Spit.) DLI-SW-LOCO010041202 Low Spk (CW52314. WO ndL Splka) DLl-SWIOCOO10011202 High Spk (COO62115,Woo ndL Splka) GG Spiked &f&k 500 5000 500 5000 C4 Sulfonate PFBS untFound Amount nSarnple Recovered Recover C6 Sulfonate PFHS h t F o u n d Amount In Sample Recovered Recover! C8 Sulfonate PFOS 4mtFound Amount in Sample Recovered Recovery (ng/L) (ng/L) (%) 76.8 849 154 45.7 556 111 179 707 106 76.8 7280 144 45.7 4810 96 179 4800 92 76.8 820 149 45.7 566 113 179 726 109 76.8 7970 158 45.7 4700 94 179 4100 78 DMCSWIOC0010-041202 (COO62311Spk E. 600 Spit.) 500 107 DMC-SWIOC0010011202 (COO62316Spk F, 6ooon@LSplka) 5000 107 DMC-SW-LOC0010-041202 Low Spi (CWSZ311, 600ndL Spllu) 500 107 DMCSW-LOCOOl-0441202High Spl (COO623lr.Woo n@ SpUu) 5000 107 893 1 57 53.6 556 100 284 7780 153 53.6 4740 94 284 786 136 53.6 544 98 284 6480 127 53.6 4560 90 284 764 96 51 30 97 807 105 3890 72 DAA-SW-LOCOO50011202 (COO62S22 Opk G. WO ng& Spit.) DAA-SW-LOC0050441202 (COO62U2 spk H. Woo ng& Spit.) DAA-SW-LOC0050041202Low Spk (CW52124.500ndL SplY DAA-SW-LOCO050041202 Hbh Spl (COOPUS. ndL S p k ) 500 5000 500 5000 2460 2460 2460 2460 4100 6840 88 3840 10800 1 67 7980 9270 7980 122M) 84 7980 8290 7980 11900 78 18800 23500 18800 23600 96 18800 20500 18800 20200 28" DAA-SW-LOCOO2-0011202 (COOPUI Spk I,WO ndL Spit.) DAA-SW-LOC0020041202 (COOPS26 Spk J. Woo m#L SpUu) DAA-SW-LOC0024-041202Lav Spk (CW52SZl.600ndL Splka) DAA-SW-LOCOO20011202HighSpk ICW52329. Woo n e t S P W 500 5000 500 5000 FleM Blank Low Spk (CW52SS1. WO ndL SpHu) Fleld Blank High Spk (COUZUI. Woo ndL SpUu) FIeld Blank Low Spk (cmezrw.noo ndL spwu) Flold Bbnk High Spk 500 5ooo 500 5000 cilpc 379 1250 174 379 6430 121 379 762 77 379 7850 149 ND 594 119 ND 6070 121 ND 625 125 ND 6550 131 Average: 139 Standard Deviatlon: 21 375 891 103 375 5320 99 375 860 97 375 51 80 96 ND 458 92 ND 4670 93 ND 475 95 ND 4450 89 Average: 95 Standard Deviation: 7 2780 2780 2780 2780 3530 8310 111 3440 7740 99 ND 574 115 ND 5470 109 ND 541 108 ND 51W 102 Average: 96 Standard Deviatlon: 12 'Sample residue exceedsthe splkicq levelsQniflcanUy,lherefore.an armrate recoveryvalue cannolbe CalaMed "Point was removBd fmnthe calculation of average and standard deviationas per m i l requestdated 03R1/05. ND = Not d m e d at m above 25 ngA (ppt). NQ = Not qwntlflable= Measured wnc~ntrationbe(ween25 n(lll(ppt) and the Llrnit of Quanutation(LOQ) whkh k 50 ngA (ppt). Not.: Slnw Ullssummry tab* shows rounded m u b . mwvoryvalues mynrySllght)y from tha valuos In the raw data. Exygen Research Page 21 of 100 Interim Report #2-halysis of Surface Water Samples Exygen Study No.:PO001131 FIGURES Exygen Research Page 22 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 1. Typical Calibration Curve for PFBS in Water 021405C nvl.rdb (PFBS): "Unrar" Regression (Y /x"weighting): y = 52.7 x + 0.000802 (r = 0.9884) 0 .o 0 100 200 300 400 500 600 700 800 900 1000 Concentration. ng/mL Exygen Research Page 23 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Figure 2. Extracted Standards of PFBS in Water, 50 ng/L and 100 ng/L, Respectively 3.83 v) P u -%c(0 -Q1 c 2 4 6 8 10 12 14 16 I - - Time. min XCO21105-3, I00 nglL Standard PFBS (Standard)299.0190.0 amu sample 4 of 52 from 021405C.wiff Area: 5100 counts Height 105. cps RT: 4.00 min - v) 100 a. 0 zi 50- 0) c -cc Q) 0 4.00 2 4 6 8 10 12 14 16 Time. min Exygen Research Page 24 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 Figure 3. PFBS in Reagent Water, 500 ng/L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively n u cQ) 0' c ~ 2 4 6 8 10 12 14 16 - Time. min IReagent Spike A, 500 nglL- PFBS (QC)2QQ.O/QQ.0 amu - sample 10 of 52 from 021405C.wiff Area: 26775 counts Height: 633. cps RT: 3.93 min v) E? 3.83 500 i5vc0) 0 0.83 ,I.# 5.866.437.20 8.729.55- 10.13 11:56,lI.Q5 c c 2 4 6 8 10 12 - Time, min I - - Reagent Spike 8.5000 nglL. DF=lO PFBS (QC)2QQ.ORQ.0 amu sample 11 of 5 2 from Area: 25448 counts Height: 586. cps RT: 3.94 rnin 14.0a14.37 j 5 . 6 4 14 16 021405C.wiff 17.36 0) 0 P - 500 Z iv) c -cc Q) 3.94 5.00 2 4 6 8.00,8.45 8 10 Time, min 11.71,12.1013.04 12 ,13.72 14 15.4c15.77 17.55 16 Exygen Research Page 25 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 4. Chromatogram Representing a Surface Water Sample Analyzed for PFBS (Exygen ID: C0052282, Data Set: 021405C) - COO52282 - PFBS (Unknown}299.0)99.0 amu sampfe 75 o f 5 2 from 021405C.wiF (peak nof b u n d ) - 180 0.58 - 140 - 120 100u ziv) c a, c c - -60 40- 8 . 0 2 13.04 Exygen Research Page 26 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 5. Typical Calibration Curve for PFHS in Water 021405C rev1.rdb (PFHS): "Linear" Regressionc1 I Y" weighting): y = 187 Y + -0.000613 (r = 0.99C14) ,2.O0e5 - 1 . 8 ~ 5 IBe5 - 1.4e5 - - c v) 1 . 2 ~ 5 c 3 0 - 0 1.0& m- 2(I) 8.0e4- 6.Oe4 - 4.0e4 - 0 I00 200 300 400 500 800 700 800 900 1000 Concentration, nglmL Exygen Research Page 27 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 6. Extracted Standards of PFHS in Water, 50 ng/L and 100 ng/L, Respectively I - XEO27705-2, 50 ng/L Standard PFHS mandard] 39LO#LO alwu -sample 3 of 52 from 027405twiff Area: 8?27counts might: 69s c p RT:7a4min 10.42 I - Time, min XCO21105-3, 100 nglL Standard PFHS (Standard)399.0#0.0 amu -sample 4 of 52 from 021405C.wiff Area: 16628 counts Height: 1380. cps RT: 10.5 min E(0 1000: &v) 500- - c I= 0- 2.32 Time, min 11.39 12.47 ,13.40 16.78 Exygen Research Page 28 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 7. PFHS in Reagent Water, 500 n g L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively I - Reagent Cortro#A'FP @ea&not found] (UtAnown]39SWLLOamu -sample 9 of 52from 0214U5Cwifl u) 8 --ZO s.- (0 c 0 -c 0C -) 2 '4 6 10.46 8 10 12 14 16 Time, min I - Reagent Spike A, 500 nglL- PFHS (QC)399.0#0.0 amu sample 10 of 52 from 021405C.wiff Area: 94857 counts Height: 7770. cps RT: 10.5 min u) Q u 10.46 i5cu) c 0 Q) c 2 4 6 8 10 12 14 16 - Time. min I - - Reagent Spike 8,5000 nglL. DF=lO PFHS (QC)399.0#0.0 amu sample 11 of 52 from 021405C.wiff Area: 80963 countr Height: 6530. cps RT: 10.4 min u) u P 5000 -63 c Q) 0 c c 10.43 2 4 6 8 10 12 14 16 Time, min Exygen Research Page 29 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 8. Chromatogram Representing a Surface Water Sample Analyzed for PFHS (Exygen ID: C00522831, Data Set: 021405C) 140 120 100 u) Q is0 80 cu) -cc Q) 60 40 20 0 10.47 2 4 6 8 10 12 14 16 Time, min Exygen Research Page 30 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 Figure 9. Typical Calibration Curve for PFOS in Water 021405C rev1.rdb (PFOS): "Linear" Regression Cl I x" weighting): y = 182 x + 3.07e403 (r = 0.9978) 1.8e5 , c v) c J 0 u m- Concentration, nglmL Exygen Research Page 31 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO00113I Figure 10. Extracted Standards of PFOS in Water, 50 ng/L and 100 ng/L, Respectively I - - XCO27705-2, 50 np/L Standard PFOS (Standard) 49%0/80.0 ~ I N I J samph 3of 52 from 0274flJCwiff Area: 9937counts might: 505. cpr RT: 726 min 12.60 I - - Time. min XCO21105-3. 100 nglL Standard PFOS (Standard)49.0#0.0 amu sample 4 of 52 from 021405C.wiff Area: 16106 counts Height: 925. cps RT: 12.6 min I v1 P u & 500- c0 ) -cQ) 4- 0- 1.80 1 3 . 6 44~.01 Exygen Research Page 32 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 11. PFOS in Reagent Water, 500 n g L Fortified Reagent Water, and 5000 ng/L @F=lO) Fortified Reagent Water, Respectively v) B - 12.64 i5 - _ _ cv) 3.55 4.06 6.31 8.71, 10.14,10.66 c 0 c 2 4 6 8 10 12 14 16 - Time, min I - R e a g e n t Spike A. 500 n g l L - P F O S (QC)4QQ.0#0.0 a m u sample 10 of 52 from 021405C.wiff Area: 78386 counts H e i g h t 5080. cps R T : 12.6 m i n v) P - 5000 i5v) cc 0 c Q) 12.62 12.18, I 2 4 6 8 10 12 14 16 - Time, min I - - R e a g e n t Spike 8.5000 nglL. D F 4 0 P F O S (QC)4W.0#0.0 a m u sample I 1 of 52 from 021405C.wiff Area: 72672 counts H e i g h t 4660.cps R T : 12.6 m i n v) Q u &0 ) c Q) 0 -c c 12.82 12.16. 2 4 6 8 10 12 14 16 Time, min Exygen Research Page 33 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Figure 12. Chromatogram Representing a Surface Water Sample Analyzed for PFOS (Exygen ID: C0052282, Data Set: 021405C) I - COO52282 PFOS (1Rrk~owAI4J980/8LOamu =sample75 of 52 from 027405Lwiff Area: 3595 counts Might: 885 cpt R E f27 min 12.68 80 I .56 70 - 60 - 50 - 40- 12.17. 30- 20 - 10 I 13.74 ~ L A4.18 0 2 4 8 8 10 12 14 I6 Time, min Exygen Research Page 34 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO00113I APPENDIX A Study Protocol PO001131 (Exygen Study No. P0001131) with Analytical Method: VOOO1780:66Methodof Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LCIMSIMS" Exygen Research Page 35 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOOl131 Exygen Protocol Number: PO001 13 I STUDY PROTOCOL Study Title: Analysis of Perfluorobutanesulfonate,(PFBS), Periluorohexanesulfonate(PFHS), and Perfluorooctanesulfonate(PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program Exygen Protocol Number: POOOl 131 Performine Laboratorv: Exygen Research 3058 Research Drive State College, PA 16801 Phone: (814)272-1039 SDonsor Rcmesentative: Michael A. Santon, Director of Regulatory Affairs 3M Building 0236-01-B-10 St. Paul, MN 55144 Phone: (651)733-6374 Exygen Research Page 36 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 ExygenProtocol Number: PO00I I3 1 DISTRIBUTION: 1) JaisimhaKesari, Study Director, Weston Solutions 2) John M. Flaherty, PrincipalInvestigator,Exygen Research 3) Michael A. Santoro, Sponsor Representative, 3M Company 4) Exygen Research QualityAssurance Unit Exygen Research Page 37 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOOl131 - PROTOCOL APPROVAL Exygcn Protocol Number: PO001 13 1 Study Title: Analysis of Perfluorobutanesulfonate(PFBS),Perfluorohexanesulfonate (PFHS),and Perfluorooctanesulfonate(PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Livers and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program Exygen Protocol Number:POOOl 131 APPROVALS - I Weston Solutions P Michael A. Sj&toro, Sponsor Representative 3M Compady Fohn M. Flaherty, hincipal Investigator / Exygcn Research Exygcn R e s e w Clr ent. Facility Management i/ N 0 Date fl-w-w# Date P- Exygen Research Page 38 of 100 ~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO001131 TABLE OF CONTENTS TITLE PAGE .................................................................................................................... .I DISTRIBUTION................................................. ....... ..................................... 2 PROTOCOLAPPROVAL................................................................................................................................ 3 TABLE OF CONTENTS................................................................................................................... INTRODUCTION.......................................................................................................... TEST MATERIALS. ................................................................................................ 5 OBJECTIVE..................................................................................................................................................... 6 TESTING FACILITY.............................................. STUDY DIREaOR......... .................................................................................................................. 7 SPONSOR REPRESENTATIVE.................. PRINCIPAL INVESTIGATOR........................................................................................................................ 7 - PROPOSED EXPERIMENTAL START AND TERMINATTON DATES ... IDENTIFICATION AND JUSTIFICATION OF THE TEST SYSTEM ............... SAMPLE PROCUREMENT, RECEIPT AND RETENTION ............ SAMPLE IDENTIFICATION........................................................................ ANALYTICALPROCEDURESUMMARY ................................................................................................... 9 VERIFICATION OF ANALYTICALPROCEDURE........... METHOD FOR CONTROL OF BIAS ............................................. STATISTICAL METHODS ............................................................................................................................. I I GLP STATEMENT ................................ REPORT ........................................................................................................................................................... 1 1 SAFETY AND HEALTH ....................... ........... AMENDMENTSTOPROTOCOL........ ............................................................................................ 13 DATA RECORD KEEPING ............................................................................................................................ 13 QUALITY ASSURANCE ............ .............. ........................................... ...........14 RETENTIONOF DATA AND ARCHIVING ................................................................................................. I4 APPENDIX I, ANALYTICAL METHODS..................................................................................................... I5 Page 4 of 65 - Exygen Research Page 39 of 100 ~ ~~ ~~~ ~ Interim Report #2-Analysis of Surface Water Samples ~~ Exygen Study No.:PO001131 Exygen Protocol Number: PO00113I m INTRODUCTION The purpose of this study is to perform analysis for perfluorobutanesulfonate (PFBS), perfluorohexanesulfonate (PFHS) and perfluorooctanesulfonate (PFOS) in water, soil, sediment, fish, clams, vegetation, small mammal livers and small mammal serum using LC/MS/MS for the 3M Decatur Monitoring program. The study will be audited for compliance with EPA TSCA Good Laboratory Practice Standards 40 CFR 792 by the Quality Assurance Unit of Exygen Research. TEST MATERIALS The test materials are pertluorobutanesulfonate (PFBS), perfluorohexanesulfonate(PFHS) and perfluorooctanesulfonate (PFOS) and are all supplied by 3M. PFBS Chemical Name: Perfluorobutanesulfonate Molecular Weight: 338 supplied as the potassium salt (C4F&OiK+) Lot Number: 101 Purity: 96.7% Transitions Monitored: 299 + 99 structure: PFHS Chemical Name: Perfluorohexanesulfonate Molecular Weight:438 supplied as the potassium salt (CaF&3O,X+) Lot Number: SE036 Purity: 98.6% Transitions Monitored: 399 + 80 Structure: FFF ~ Page 5 of 6S Exygen Research Page 40 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1131 Exygen Protocol Number: POOO I I > I PFOS ChemicalName: Perfluomctanesulfonate Molecular Weight: 538 supplied as the potassium salt (C,IF~~SO~X+) Lot Number: 217 Purity: 86.9% Transitions Monitored: 499 + 99 Structure: F F F F F FFFF OBJECTIVE The purpose of this study is to perform analysis for perfluorobutanesulfonate (PFBS), perfluorohexanesulfonate (PFHS) and perfluorooctanesulfonate (PFOS)in water, soil, sediment, fish, clams, vegetation, small mammal livers and small mammal serum for the 3M Decatur Monitoring Program using the n current versions of the following Exygen analytical methods: V0001780: V0001781: V0001782: V0001783: V0001784 VOOOl785: V0001786 "Method of Analysis for the Determination of Pertluorooctanoic Acid (PFOA) in Water by LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)in Soil by LCM/Ms" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)in Sedimentby LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Fish and Clams by LC/MS/MS" "Method of Analysis for the Determination of Pertluorooctanoic Acid (PFOA) in Vegetation by LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Small Mammal Liver by LC/MS/MS' "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Small Mammal Serum by LCIMS/MS' TESTING FACILITY Exygen Research 3058 ResearchDrive State College, PA 16801 Phone: (814) 272-1039 Page 6 of 65 Exygen Research Page 41 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 - STUDY DIRECTOR JaisimhaKesari P.E.. DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: (610) 701-3761 Fa:(610) 701-7401 j .kesari@westonsolutions.com Exygen ProtocolNumber:PO001131 SPONSOR REPRESENTATIVE Michael A. Santom 3M Company Director of Regulatory Affairs 3M Building 0236-01-B-10 St. Paul, MN 55144 Phone: (651) 733-6374 * PRINCIPAL INVESTIGATOR John M. Plaherty Exygen Research 3058 Research Drive State College, PA 16801 Phone: (814) 272-1039 john.flaherty@exygen.com PROPOSEDEXPERIMENTALSTARTAND TERMINATION DATES It is proposed that the analytical portion of this study be conducted from October 01, 2004 to December 31. 2005. The actual experimental start and termination dates will be included in the final report. Exygen Research Page 42 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO001131 c4 IDENTIFICATIONAND JUSTIFICATION OF THE TEST SYSTEM The following are the test systems for this study: Water (groundwaterand surfacewater) Soil sediment Fish Clams Vegetation Small Mammal Liver Small Mammal Serum The samples will be collected by Weston Solutions. The control samples will be purchased and prepared by the testing facility. Purchase and processing details for the control samples will be included in the final repon associated with this study. The test systems were chosen to access the environmental impact of PFBS, PFHS and PFOS in the Decatur, Alabama area. SAMPLE PROCUREMENT, RECEIPT AND RETENTION Water, soil, sediment, fish, clam, vegetation, small mammal liver and small mammal serum samples will be received at Exygen directly from Weston Solutions. The details of sampleprocurement for this study are outlined in the 3M work plan entitled "Phase 2 Work Plan for Sampling Environmental Media" The number and types of samples collected will vary depending availability in the field. The total number of samples received and analyzed for each matrix will be documented in the final report associated with this study. Water, soil, and sediment samples will be used as received without further processing at Exygen. These samples will be stored refrigerated at 2OC-8"C. Fish, clam, vegetation and mall mammal liver samples will be processed according to the appropriate analytical method (see Appendix I). These samples will be stored frozen at 5 -10C. Small mammal whole blood samples will be centrifuged in the field at the time of collection and the serum fraction will be used for the study. Small mammal serum will be stored frozen at 5 -1OOC. The receipt and processing of the samples will be documented in the final c.4 report and raw data associatedwith the study. Page 8 of 65 ... .___- Exygen Research Page 43 of 100 ~~~~~~~~ Interim Report #2-Analysis of Surface Water Samples ~~ ~ ~ ~ Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 13 I /". SAMPLE DEN"EICATION Prior to analysis, each sample will be assigned a laboratory sample reference number. The reference number will be unique and will distinguish each laboratory sample that is processed throughout the analytical procedure. Chromatographic data will be identified by the laboratory sample reference number. Sample storage conditions and locations will be documented throughout the study. ANALYTICAL PROCEDURE SUMMARY References: V0001780 VO001781: V0001782: V0001783: VOOO1784: V0001785: V0001786: "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)inWater by LCIMSIMS' "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Soil by LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Sediment by LC/MS/MS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)inFish and Clams by LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Vegetation by LC/MS/MS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)inSmall Mammal Liver by LC/MS/MS' "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Small Mammal Serum by LC/MS/MS" The above methods use analytical conditions capable of separating the isomers of PFBS,PFHS and PFOS. The final report will include the isomers summed into total PFBS, total PFHS, and total PFOS found. VERIFICATIONOF ANALYTICAL PRC)ICEBURE A laboratory control sample will be used for the preparation of fortified control samples. The test substance will be made into solutions as per the method, and added to the matrices via a micropipette. For water sampling, Exygen will supply one bottle per sample collected. The bottles will be 500 mL precleaned ScVSpec Premier wide mouth HDPE bottles. These bottles have been routinely used for fluorochemical sample Pagr Y of 65 . . .- Exygen Research Page 44 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: Po001 If I collection at the testing facility and have been shown to be free of PFBS, PFHS and PFOS. Sampleswill be added to each container to a volumetric fill line at 200 mL. A field duplicate, a low field spike and a high field spike of each sample will be collected. The low and high field spike bottles will contain PFBS,PFHS and PFOS as well as perfluorooctanoicacid (PFOA) and 1.2-13C perfluorooctanoic acid (% PFOA). PFOA and I3C PFOA are included in the solutions used to spike the samples. The results for PFOA and I3C PFOA will not be reported in this study. Exygen will supply one field blank (control water) and two field blank spikes (control water fortified with PFBS, PFHS and PFOS at a low and high level) for every twenty samples collected. At the testing facility, each water sample (excluding field duplicates and field spikes) will be extracted in duplicate and will also be fortified at a low and high concentration with PFBS, PFHS and PFOS and processed through the described procedure to determine method accuracy and to check for bias. For soil, sediment, clams, and vegetation, Exygen will supply one 500 mL precleaned ScVSpec Premier wide mouth HDPE bottle per sample collected or a zip-seal bag. All containershags used for sample collection will be shipped to the sample location. Samples will be added to each container or bag in the field. At the testing facility, each sample will be extracted in duplicate and will also be fortified at a known concentrationwith PFBS, PFHS and PFOS at P- both a low and high level and processed through the described procedure to determine method accuracy and to check for bias. For small mammal liver, Exygen will supply a 50 mL polypropylene centrihge tube. For small mammal serum, Exygen will supply a collection kit for each sample containing serum separator tubes (red top), vacutainers, needle holders and needles, transfer pipettes, and polypropylene tubes. At the testing facility, each liver and serum sample will be extracted in duplicate and will also be fortified at a known concentrationwith PFBS, PFHS and PFOS at both a low and high level and processed through the described procedure to determine method accuracy and to check for bias. P- . - _ -._- Exygen Research Page 10 of 65 . Page 45 of 100 ~~~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 131 Recoveries are anticipated to be between 70% and 130% of the fortified levels; however, the exact precision and accuracy will be determined by the analysis of the quality control samples described above. A statement of accuracy will be included in the final report. METHOD FOR CONTROL OF BIAS Control of bias will be addressedby taking representativesub-samples from a homogeneous mixture of each matrix from untreated control samples, and by analyzing at least two levels of fortifications. STATISTICAL METHODS Statistics will be limited to those specified in the subject methods and to the calculation of average recoveries, as applicable. GLP STATEMENT P- All aspects of this study shall be performed and reported in compliance with EPA TSCA Good Laboratory Practice Standards 40 CFR 792. The final report or data package (supplied to the Sponsor) shall contain a statement that the study was conducted in compliance with current and applicable GLP standards and will outline any deviations in the study fmm those standards. This statement will be signed by the Study Director and Sponsor Representative. REPORT A final report will be prepared by the principal investigator or their designee at the conclusion of the study. The report will include, but will not be limited to, the following: The name and address of the Study Director, Sponsor Representative, and of the testing facility. a A statement of GLP compliance (any related documentation. such as chainaf-custody records, must be in the studyrecords). #-- Pugr I I of 63 Exygen Research Page 46 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: PO001131 Exygcn Protocol Number:PO001131 The signed and dated statement by the Exygen Research Quality Assurance Unit regarding dates of study inspections and dates findings were reported to the Study Director and Management. A description of the exact analytical conditions employed in the study. If the subject method was followed exactly. it is necessary to include only a copy of the analytical method. Any modifications to this method will be incorporated into the report. If the method is photo-reduced, the project number and page number must be included on each page. Descriptionof the instrumentationused and operatingconditions. All results from all sets analyzed. Control and fortified samples will be identified and the data table will include sample number and fortification level. Representative chromatograms for each analyte in each matrix, including chromatogramsof a standard and a control sample, and a chromatogram at a fortification level. The location of the analyte peaks will be clearly identified in ail chromatograms. All circumstances that may have affected the quality or integrity of the data will be documentedin the report. Locations where raw data and the final report are to be archived. Additions or corrections to the final report shall be in the form of an amendment signed by the Study Director. The amendment shall clearly identify that part of the report that is being altered and the reasons for the alterations. The amendment will be signed and dated by the Study Director and the Sponsor Representative. 0 All applicable requirements for reporting of study results as per 40 CFR 792.185. SAFETYANDEIEALTH Laboratorypersonnel will practice good sanitationand health habits. Every reasonable precaution shall be taken to prevent inadvertent exposure of personnel and the environment to the test or reference substance@). Exygen Research Page 47 of 100 Interim Report #ZAnalysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number:Po00I 13 1 AMENDMENTS TO PROTOCOL All significant changes to the analytical protocol outlined here will be expressed in writing, signed and dated by the Study Director and Sponsor Representative. Amendmentsusually will be issued prior to initiation of study plan change. However, when a change is required without sufficient time for the issue of a written amendment, that change may be effected verbally with supporting documentation signed and dated by the Study Director and followed with a written amendment as soon as possible. In this case, the effective date of the written amendment will be the date of the documented change. Copies of the signed amendmentswill be appended to all distributed study plan copies. The original amendment will be maintained with the original study plan. Any deviations from the study plan or from the analytical method as provided will be documented and reported promptly to the Sponsor Representative. DATA RECORD KEEPING /- Records to be maintained include the following (as appropriate): Sample tracking sheet(s) Samplereceipt records, storage history, and chains of custody 0 History and preparation of standards(stock, fortification,calibration) Descriptionof any modificationsto the method 0 Instrumentrun sheets, bench-sheetsor logs 0 Analytical data tables All chromatographicand instrumentalconditions 0 Sample extraction and analysis dates A complete listing of studypersonnel, signaturesand initials Chronologicalpresentationof all study correspondence 0 Any other documentationnecessary for the reconstruction of the study Chromatograms-All chromatogramswill contain the following: Sample identification, injection date, arrow or other indication of the area of interest, and injection number correspondingto the run. Additionally, fortifications will include the amount of analyte added and the sample number of the sample that was fortified. e Analytical standard chromatograms will additionally include the concentration (e.g., pg/mL). Page 13 of (IS Exygen Research Page 48 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO001 I3 1 As part of the documentationthe followingsheets will be included in each analytical set: a run sheet listing the samples to be run in the set, and an instrument conditions sheet describing the instrument type and operating conditions. QUALITY ASSURANCE The QA Unit of Exygen Research will inspect the study at intervals adequate to assure compliance with GLP's. and will report the fmdings of audits to the Study Director, Exygen Management, and the Sponsor Representative. RETENTION OF DATA A N D ARCHIVING All hard copy raw data, including, but not limited to, the original chromatograms, worksheets, correspondence, and results shall be included with the data package submitted to the Study Director. These will be archived with the original study plan, amendments, final report, and all pertinent information from the Sponsor. The testing facility shall keep all electronic raw data and any instrument. equipment, and storage logs for the period of time specified in 40 CFR 792.195. An exact copy of the materials submitted to the study director will also be kept at Exygen Research. Exygen will obtain permission !?om the study director before discarding or returning samples. Exygen Research - .. .- - - Page 14 of 6J Page 49 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: PO001131 Exygen Protocol Number: PO001131 APPENDIX I ANALYTICAL METHODS V0001780 V0001781: V0001782: V0001783: VOOO1784: V0001785: V0001786: "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Water by LC/MS/MS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Soil by LC/MS/MS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Sediment by LC/MS/MS" "Method of Analysis for the Determination of Perfluorooctanoic Acid QFOA) in Fish and Clams by LCIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Vegetation by L.CIMSIMS" "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA)in Small Mammal Liver by LCMWMS' "Method of Analysis for the Determination of Perfluorooctanoic Acid (PFOA) in Small Mammal Serum by LC/MS/MS" Exygen Research Page I S of 6S Page 50 of 100 Interim Report #2-Analysis of Surface Water Samples ~ Exygen Study No.: PO001131 Exygen Protocol Number: PO00I13 I ANALYTICAL METHOD MahodNumbcr: V0001780 Mytiul ratingFacility Exygcn R-h 3058 RaarchDrive SUte COUege,PA 16801 Vice Rcridau,Operations, E x y w R a d Exygen Research ToulPagu: 7 Page 16 of 65 - - Page 51 of 100 ~~~~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 ExygcnProtocolNumber:PO001I3 1 r 1 exyg8noaurrsll MlcbodNuakr VWOl7W A%ALWICAI. METHOD Method of My&for the DclermiinUion of Pcrfluoroocwic Acid (PFOA) in Water by LclMslMS I .o seeps n*mabod is to be emplopl fm the iMl.ti00 md quantitationof perfluomcwaic acid by High Liquld Chrwutopngby coupled to a lvldm Mass S p m m m i c DctWorW X b W M S )in w.tor. 2.0 SrfW 2.I Alwaya observe n f c labomtorypnclicca 2.2 Con& thc qppdate MSDS bcfon lmdling MY chanicd for pmpcr safety proclldim. 3.0 Sample Rcq- 3.1 At b t 4OmL oft& umple for~xcnccion. 3.2 No ample pmceuiyIs npcdod torwua umplo. 3.3 Smplm n o d nhgmlcd lhovld be .Ilowed lo Cquilibruc IO room MlpBuuro. 3.4 AU wpplu mustbe thomu&hly mixedbefor0 being rpmplcd for cxuaclion 3.5 Any umplor conUinin( pmiclec should be ccnlrifugod at -3000 rpm for -5 minufa ud therupanrtrnt wed tor tho cxm~tion. 3.6 Sunplc collcotioll pmcedurer will bc ~pccifidin the impling plan for this proj=r 4.0 ~ e o u M d S w l d U d c 4.1 WW-HPLCgndC 4.2 Me(lumol-HPLCpdo - 4.3 AmmonivmA m A.C.S. R-Wt Gndc - 4.4 PeffluomoctlnoicAcid Sipu-AkIrich 5.0 I W I U W l t U K l Q ~ l 5.1 A high pdomurm liquid clmuutngrqh crprblc of pumpin@ up to 2 rolvcau equippod with a wilblc volume injector upable of injecting 5-200 pL OOllllQdod to a uadcm M.u Spcctrommcr (LCJMWS). 5.2 A dcviscto collect nw drt.for peak inkgalion .adqusntilalion. 5.3 ruulyciulM.Oc0crprslaofm84ingto o.oooo1 g. 5.4 5 0 m L ~ o p o l y p r o p y l ~ c ~ t r i f l r g c t u b a . 5.5 15 mLdirpoublopolypmpylaE d f u g e tubw. 5.6 Diqonbkmicmpipu(50-100uL.IWZohrL). 5.7 125-mL LDPE nUmW-~Oumbonlo. 5.8 2 mLC l e m HPLC vw kit 5.9 Dirpomblcpipdtca. 5.10 A u t o p ~ ( l O O - 1 o O O p L m dlOlOOpL). wilhdi8poaabletipc. 5.11 W.unSopPtVu6~((ly)ClUSPEculridgoc. I. . - Page 17 of 65 __ Exygen Research Page 52 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 ExygenProtocol Number: P o 0I 131 I .AhirLYllCAL METHOD Mabodof Andy& br th@Dc4rd&on of PdumoocuDoic Acid (PFOA)in Wiler by 5.12 SPBvlcuwarmrdfbld 5.13 CODIlifigocapableof lpinning50mLpol~mpylmc~ b awt 3(xxI rpm. 6.0 chmrmtoplphic syctm 6.1 M y c i u l Column:Fluophuc RP (Kcyttono Scientific). 2.I mm x 50 mm. Jp (PM: 82505052130) 6.2 Trmpcn(urr: 30.C 6.3 Mobile pturc (A) : 2 mM Ammonium Acetate in Water 6.4 Mobiiphuo(B): Maha01 6.5 cindimth~opnm: & & ? M y 0.0 1 a 65 8.0 25 20.0 25 22.5 65 Flow Rate ';ja lrellrmnl 0.3 35 0.3 75 0.3 15 0.3 35 0.3 6.6 6.7 6.8 - - InjectionVolume: 15)rL(cmk imrmscd Qu~tiutionP: wk Arcr cxtcrml Run T i e : 23 minulsl. to LI much M 50 ~1). crlibmlion curve. Ths.bovceoaditiool~iara&d u r guidesnd maybe changed inorder to oplimilc the mu:Iyrce3n 7.0 Ms/Ms syllan 7.1 Mode: Elo*mopnyNeprtiveMRMmodc,manitonng413+369m/z. The above cnadicioar M incosdod u guide rad m y be changed in order 10 OptMiSo the MSMS 8yntem. 8.0 Prqnntion of Solvriolu 8.1 Mobilapbuo 8.1.1 2 mM .mmotlium rotrcD in wrtar is p n p d by d i n g 0.154y of lmmoaiumlcancto1ooomLofw.tn. Altamue volvmcl rmy be prepared. I Exygen Research Puge I8 of6S Page 53 of 100 ~~ ~ ~~ Interim Report #2-Analysis of Surface Water Samples ~~ ~ Exygen Study No.: POOO1131 Exygen Protocol Number: POOO1131 I . ANALyTIc.u METHOD Method of Analyds tkrho DatamiDuionof Perflumwauroic Acid (PFOA) in Wuor by Lc/Ms/MS 9.1 Slud.rdStock/pdfiutionSoh*on 9.1.1 Rcp.rr a dock solution of-100 j~gftnLof PFOA by weighing IO my of &@wl ctmdpd (mrrcstcdfor purily) and dilute IO IW mL wilh mdhpIol in a 1 2 5 d LDPB bottle. 9.13 A 10 pl/mL forliflcltion rolutionofPFOA i8 pnpued by brinying IO mL Of UIE I00 p w roiution to a Anrt volume of 100 wilh methanol in Ii u m~LDPB bonk. 9.1.3 A 1.0p@nL fotthiuiion solutionof PFOA i8 pmpad by bringing I O mLof tho IO pB/mLrolutionIO. find volum of 100 with m c r h d m 125 mL LDPE botllo. 9.1.4 A 0.1 p#mL fod6c.tionsolutiw of PFOA ir prspMd by bringing IO mL oftbo 1.0 p g h L mltltion to a fuul volumeof 100 wilh me(h.nol in a 125 mL LDPR boltla 9.1.5 A 0.01 pgftnL fdfisrcion rolulion of PFOA u preparedby bringing IO mL of h 0.1 p#mL rolution IO a f i ~ vl olwnc of IW with &I in a 125 mL LDPE bottle. 9.1.6 'Ibs dock md fortifidon rolutionau e IO be awed in a refrigerator PI lpprorimuoly C C and Mulblo for a nuximum pond of 6 months hthe &lo ofpnpusion. 9.2 SlaMhrd cdibntioosolutioa, 92.1 L4XWMS a l i t d o n staudds m mated in HPLC wcr. The ulibntion nudpdc M pmcrued through the artnetion pmecdure. idcntiul la umplor. 9.2.2 'Ibs fobwing u a rrpial oxunplo: dditiooll oonocnmtionsmay be propvodu needed Exygen Research - -_ Page I9 of 65 .- Page 54 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.:PO001 131 ExygcnProtocolNumber: PO001131 'B a p l . * u F h ANALYTICUMElllOD Mahod of Analysis fortbe Dctaminuiin ofMw-ic WIMS MnbodNvmbn VWOl 780 I Acid (PFOA) in Witcr by 9.2.3 A zuu slmjud wlU(i0a (t'wp11 blmlr) with each #( of ImdpbartMcd 9.2.4 ScOnd ahaclcdultbntion UauidIin 15-mL polypmpylenc Nber n 2% m 6'C, up m two weeks. 9.2.5 Allanale vohrwr and c o a e no~f Nndudr may bo prepwed as needed. 10.0 8.tcbsaq 10.1 Erhbatch of umpla cxlractcd (typically 20 or l a s ) mwl include at leu1 one r a g a 1 con(r0l (mahad blank wing HPLC water) and IWO rrr$rnl conrrols fdfied 81 b r m conccnlrrtionr (lab control spike) IO verily procodunlrooovayfortheb.lch. 10.2 R c p ~ forlfid~d md labanlory duplicster and cpika will be specified inthc qualityusurawc plm for thisp m j a 11.0 Slmplc Emution I 1.1 Mauuro 40mL of umple or a partionof umplc diluted to 40 mL with water into 50 mL palyppopylmccenhifipeluku (fasiify u needed, replace lid and mix well). 11.2 Condition the QI SPE (1 g, 6 mL) by passing IO mL methanol followedby 5 mL of HPLCWItDT (- 2 dmp/roc). Do 1101 let column rundry - 11.3 Lod~~pleoncaditionedG~SPEcutridgDe.i ~ ~ u d ~ l ~ a t ~ . 11.4 Elute with -5 mL 100% mabaol. Collat 5 mL of eluate into grdualcd 15 mLpO1ypmpylac w * e tuba(mvolume 5 mL). I 1.5 M y z s rvnpla Udng clcamrpny mms. 12.0 c b m d a p p h y 12.1 hjat ulc y l ~ pclount ofucb # t d d ,slmplc and forlificd umplc into the LCIMSIMS A cdibnlion Itud.rd musl prscedc and follow all dyrd umplor. 12.2 sondvdr of PFOA comapadugto N lw five or more concamtion levels mudbo iruhddin krluuiylicdtu. 12.3 An & sat of ntnclcd a l r ~ o aoud.rdr must be included a1 the beginning mui SIthc ad of a vmplc set. Extnclcd rlandudr mu1 hc intmpad brmocllway 5-10 umpla. AI m dtarutivc. UI entire sa of atnclcd ulibntion Imdpb m y bo ir\jccred st the beginning of a re1 followod by Qmrtcd ulibntion rulrdvdr intcnpcncd cvsry 5-10 ample5 O(I ICCW for a d sel of artncted rlududs). In cilhcr cue. e x u u l a l calibration19adubmultbe thc fint md I.rt injection in a umplc HI. 12.4 Use lineu r(lld.rd cyva far qumtit.tion. Linur rundud curves an! g dfwthe d y u by Linmmgrmion using LIx weighting of peak area pW.y.lo<i Page 20 of 6S - Exygen Research Page 55 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: POOO113 1 Exygcn Protocol Number: POOOI I3 1 13.1 ~ g m tlnumt show ips*of I) daughter ion al 369 m u Pmm a pareni of 413 MU.The 413 m u pMnt concrpondr Io the PFOA anion, while Ihc daughter ion (369mu) rcprslsntithe louof carbon dioxide. 132 Mahod blmka mum MIcontain PFOA at lcvcli p i e r t h th~e LOQ. If I blank containr FTOA al Iwch @'cue#chm 50 nglL, ulm Inew blank tamplr muUbc obumodmdthe mtire wt m w bc rc-oxmctcd 13.3 Rceovcria of oon(r0l s p k md mmix spikes mum be between 70-13090 of h i r horn vdwr. i t a conhol $pike f8Ih outside tho acceptablelimits. the d i m wt of smpln should bc re-cxtnctcd. Any mafrix spike outside 70- 1% sould be evdwtad by the d y i t to determine if re-extraction is wyM1cd. 13.4 Any cdibrdion rtlodud Iovldto bc i#fUi~tiuolutlier by using the Huge Ermr Toy may be acludd from the Dllculation of the cllibdon curve. H m e r , tho toul numbs of umctcd odibntion standards chol could be cxcludod muct not aoood 20% of the total numbs of oxmcted ItMdlrds iqicctd. 13.5 The ramehtion owfkicat (R) lor alibntioa wya gmmtd must be M.!BZ (R* M.995). If ulilnation raultl fdI outride these limits. then ippaoPiUc Uopl m w be taken to adjust inrlrument operation, and lhs daodmd~or the nlwmllaof umplu shouldbe rswlyzed. 13.6 Retention timol bawm sundudi d sunplw must not dritl more thnn f 4 K within an larlfiul run. If rctcntiontime drift cxcccdathia limit within u1uulfial tun then tbc l a m w be 4 y L C d . 14.0 clkulatioru 14.1 Ute Ute followin# ap&m to alou*to thc amount of PFOA found (in ne/L. bucd on ma) tuing the a d a d lye (linwregression pamelers) ~ ~ by tbocM m Lydnx roltwuc pmgmm: - PFOA Iound (ng5) x DF slope -DF hnor by which thc Brulvolumew u diluted,if nwcsury. Exygen Research Page 21 of 65 - Page 56 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1 131 Exygen Protocol Number:POOOI I3I Mscbod of -8 1 AIyALnlCAL MLTtIOD forcbo DatnmidmofPufluoroo*lmic Acid (PFOA) in Water by 14.2 F a umplr fortitied with known MOYDU of PFOA prior to cxtmtion. use tho R-vcry -followingcpurtion10 (W Ulculalc cbo perm11 r c c o v q . Exygen Research Page 57 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO001 131 ANALYTICAL METHOD MdwdNumkr: VW1781 MItbcd of AnWL for tbr Ihtrrmln81baof Perlluorooct.nok Add (PFOA) In Soil by LcIM9/M8 Anrlpicrl rating Pseility: exyscDR-h 1058 Rh- Drive Sutc College. PA 16801 Appmvcd By: Ppvl colmouv \ iolulo4 Date - - Exygen Research Page 23 0f65 Page 58 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: PO00113I Exygco Protocol Number: PO001131 L 1 ANALYTICAL METHOD Mahod of AdyU for thc Dbonni~dmof Pafluoroocmoic Acid (PFOA) in Soil by LcIMs/MS 1.0 stops Thir mochod uto ba anplopd for thc h l u i n and qudtation of pduomocunoic acid by High Pcrformmcc Liquid Chromuopnphy coupled to a Undcm Mass SpcCaDmceiCDac*or (LcmsMs)in mil. 2.0 safely 2.1 Alwaycobravsufe*bontorypncricor. 2.2 C o d t Uw .ppmpriltoMSDS before butdlinn MYchemical for omwr saliiv prrC8UtiOUI. 3.0 Sample Rquirancnt 3.1 At I d 15 gof tcaumple for ormotion. 3.2 No umple pmudngi8 Mododh r mil umplu. 3.3 Sample# itorsd mhipor.lod lbwld ba &wed to cguilibntc to room ccmpatura. 3.4 All m p k r mud k Ihoroughly mixed bafom bringu m p l d for cxmnion. 3.5 Sample collection pmcdwu will bc apccificd in Ihs umpling plan for this pmjoct. 4.0 Ragml~lodSU&& 4.1 W.O-HPLC& 4.2 Mcthulol-KPLCgde 4.3 4.4 - ML!IUAc*rts-AC.S.RarWdGndo PCrRuomocuDoicAcid SipM-Aldrich 5.0 ~ a l t t 4 l I i p m o n t 5.1 A higb portornusee liquid c4uumUopph capable of pumping up 10 2 mlvmn qui@ with a VlrLble wlvmc injectorupabk of injecting 5-200 pL conwoted to 1UadmMua Spsaromaq(LUMS/MS). 5.2 A devicem colloctraw data forPSJC intogruton mdqumtitation. 5.3 A d y t i C d bJmcsClpoblOO f I d i l l 8 100.OoM)I 0. 5.4 50 mL dispouble polypmpylcnc~ ~ n h i k tgueka. 5.5 15 mL dispouble polypmpylcnc oclffikge tu&. 5.6 Dispoubla micmpipcu (5&1oouL. 100-200uL). 5.7 1 2 5 d LDPBnumw-mouthbottlcs. 5.8 ZmLClovHPLCvillkit. 5.9 Dirpoublcpipdta 5.10 Aulopipoasl(lM)-10~LtIO-1W~Awitbdicpoubletipl 3.11 Wl(ar Sop W Va76 oc(1.g) CIS SPE u m i d g a . 5.12 S P E v W ~ d f o l d . 5.13 ULmconicb.th. Exygen Research Page 59 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn ProtocolNumber: PO001131 1 ANALYTICAL METHOD Mahod ofAMIyru for the Datamidmof Pe&mmo&mic 1 Acid PFOA.)in Soil by 5.14 WhU-rCCimr & a h . 5.15 Contrifigeaplble ofspinning 50 mL polypmpylcncN b a u So00 rpm. 6.0 ~ I O g r ~ i lsipCtm 6.1 Myiiul Cahunn:FluophroRP (Keynon~Scientific). 2.1 nun x 50 mm. 5p (PM 82505452130) 6.2 Tsmpruurs: 3WC 6.3 Mobile Pturs(A) : 2 mMAmmonium Acstlre in Warn 6.4 Mobile P h w (e) : Matlunol 6.1 GndierrlPmgwn: Tinrclminlu 0.0 6.3 1.0 65 8.0 25 20.0 25 22.5 65 Flow Rate Y ' " " "0.3 35 0.3 15 0.3 15 0.3 35 0.3 6.6 6.7 6.0 - - Isjoaion Voluma: 15 pL (abo inrraredto u much u 50 pL). Quuuiwion: P a tA m extmnd mrdudcdibntion DUTYO. Run Tim: 23 minluor The above mndirionr Mintoldodu Optimimtba~~ d n u y b c changed in order lo 7.0 MslMsSyitaa 7.1 Mode Elcctmpny NegativeMRM made, monitoring413 -b 369 d z for PFOA. The &ow d t i o n r arc intmdrd u a pido ud m y bs changed in order IO optimize thc MSMS syltcm. 8.0 prrpuuion of solutimu 6.1 MobilewuO 8.1.1 2 m~ muonium wmta in rmor is pmpmd by adding 0.154 p or ammoniumICC(UC IO 1000mL of watcr. AlIanue voluma nuy bo pcpuod. ~. Exygen Research Page 25 of 65 Page 60 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen ProtocolNumber: PO001 131 Iurn- MIlhod Nvnrbr v~o1781 ANALYTICAL MCTHOD Mabod of kulylia fortbc DC(ermi0pmof P c c f h w c M o i c Acid (PFOA) in Soil by LC/Ms/MS 9.0 Sund.rdRepm'Uim 9.1 sund.~ rdSto~ cWP.onilcuMnsolution 9.1.1 Rcpyc I stock solution of -100 pgmL of PPOA by weighing 10 ms of d y l i c d atandud (eo- for purity) and dilutc 10 100 mL with m h l in 125-mL LDPE bottle. 9.1.2 A 10 pphnL fonificuionaolutionof PFOA is prcparcd by bringing IO mL of mC 100 p#mL rolulion to I find volume of 100 with methmnl in a 125mL LDPE botcle. 9.I .3 A I .O @IL fortificuionrolutionof PFOA is pmparcd by bnnginy IO mL of the 10 p#mL solution to find volume of I00 with mthinulii1 i1.25 mL LDPE bottle. 9.1.4 A 0.1 pg/mL forbflution solutimof PFOA upnp.rod by bringing I O mLof~l.OpplmLsol~mto~flnrlvolumcof100withmoh.noltn I 115 mLLDP8 bottle. 9.1.5 A 0.01 pvmL Wication ldutionof PFOA ia preparedby bringing 10 mL of tho 0.1 p@nL solution to 8 find volume of 100 with mahmlin 125 mL LDPE M e . 9.1.6 The uock md fonifiwtlw r ~ l u t i M o ~IObs stored in I refrigeratorat approxhwely 4.C Ird PO r table for a maximum H o d o f 6 months ftoDntboduo ofpmpuuioo. 9.2 St.ladud CdibnIion SolutiW 9.2.1 Lc/MS/MS c d i b d m roadudr MpropMd in WLC water Thc cdibntion rundvdr M prcrouod thmugh Lo axtnction pmsedure. idcntial to pmpla. 9.2.2 Ibo followi u 8 typical ex.ntplo: additional wnccnmlions may be PrepSrrdUMcdrd. Fhl Comenmioa Fmifia~ion V o l u of ccnornlntionof ofFatifiollion Volumc FdficdCmmol Cdibntion Qlibnlion StandardU) SalutioaIPpb) (rL) 0 0 Samole (mL) 4a SmndvdbP0' (eaample) 0 xcmmddyy-0 IO 100 40 IO 200 40 23 xcmmidyy. I so xcmmddyy-2 10 4GQ 40 I00 xCmmddyy.3 100 IGQ 40 250 XCmmddyy.4 100 200 40 100 4GQ 40 500 xcmmddyy-5 loo0 xcmmddw.6 xc *Tbccmraual- 'onof tbo alibntiw d u d ia equal to Bx its initial -kmion, dw to tbo -tim of thc Nndud duiung Le utrution (SPE). .Icxtmtedcllibntimu1Ddpd c- Exygen Research Page 26 of 65 Page 61 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygen Protocol Number: PO001 13 1 9.2.3 A ?.anmadud solution (magonI blank) Mof .unduboxmcted. with each 9.2.4 Ston dl oxfnucd calibration rtadrrdr in 1 5 4 . polypmpylmi u k u ZTIO6T,up 10 two w&. 9.2.5 Alt~nusvoluma ad coDCCILblti~ol~f standardsmay bo prepand as Moded. 10.0 BUchSctUp 10.1 E d buch of vmplm exfnucd (typically 20 or less) mu81 include pt least OM magcu~mI tml (method bhnk using 5 mL of methanol) md two rcaycni contmli Mfld U kmwn consmmtiolu (lab control spike) to verily paoeodunlrocavEy forIhcb.tcb. 10.2 Rcquirwcllu for Bcld ad llbontoryduplicates and spike will bo specified io the qualityuutmwp h for ch* p j e c t . 11.1 Weigh 5 g of umplo into 50 mL p~lypropylsnscatribge d e s (fortify as needed, replace lid Pdmix MII). 113 Add 5 mLofmahn01ad chlrc on a m k t d o n Ibakcr for45 minute. 11.3 h k t h o t u b u t o YI ulhumicbUh aad Moicato for -15 minutes. 11.4 Bring tbe volnnc up IO 40 mL with WUUin tbe SO mL polypropylene cmtrifuge(uk. 11.5 C m k i f u g o f o r - l O m i u - 3 W p . 11.6 C d t i w tho Q t SPE d d g a (I p 6 mL) by pwsing 10 mL muhlnol f0llOWd by 5 of WLC WUOT (- 2 drogrD2). Do no1 IC( column Nn dry 11.7 Lord (decurt) the sample 011 Ihc wdtiond CISSPE cnmidge. Discard - tlurte. 11.8 Elutc with -5 mL 100% mcthulol. C o l l a 5 mL of cluue into graduaid I5 mL polypopyloatWUriIbgotubm (ruulvolume 5 mL). 11.9 AnrlyrcUmplm wingo l m ~ Lcy/Ms/Ms. ___ Exygen Research Page 27 nj 6s ._ Page 62 of 100 ~~ ~ ~ Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 ExygcnProtocolNumber: PO001 131 byp. Rup* M n b o d h h b a VOOO1181 I 1 ANALYTICAL METHOD Method of Mpii for theD e t m h n'onof PerlluomoctPnoicAcid (PFOA) in Soil by LClMsMS 12.4 12.5 13.1 IhwW0gmmudlbool rprk ofrd.uOboosion 81 369 m u from I plrcnt of413 mu. T b 413 MU pmnt carapoldr 10 tho PWA mion. while the dwgh(a ion (369 8mu) repmsds tho lorr of carbondioxide. 13.2 Method b W mwt no1 cowrin PFOA 8l levels pala (h.n the MQ. If a b M : MU~IU PPOA 8l levdl lportorIllan50 I@, then 8 new blank rnmpls mwl bo obtliaod md themtin lam w be rwxmclod. 13.3 RocoVri~o~fumkol spikes d mmiX rpikw m W bo botwocn 70-130'6 of the hwMl vrlucr If a mntrol rpika Wlr outside Cho acceptablelimits. the mtLs IC( of nmph sbould be tbextrrted. Any mlhix spike outside 7013oY. should be onlurtd by the d p t m dacrminC if mxlraction is WpMtod 13.4 b y Ulibntion S d a d buDd to be r nrrinieal outlior by wing the Huge Enor Tea m y be excluded fnnn thc olloulrtionof the wlibntion curve. Howowr. thc toul numbs of ox!nctcd ulibntion nrnddr thu could be excluded mud MaIaed 20% of tbc total number of cxwaclod aandanlr injcasd. 13.5 Ihc mrroluion cwtficient (R) for calibration c u l ~ e sgeneraled n m l he 20.992 (R' 20.985). If wlibruion rcrvlti fall outiide thac limits. then appropriate rwps mud be ultm to ldjw inrcrument operation. und the lundudr or the mlcnnt (01of umph should be rsrrulyud. 13.6 RotaUion limes I#cwoon d.ad.rdr a d umplu murc not drift more than f 4 K witbin an mulyticd NIL IfraoatiOn time drift ex& this limit within o uulyiiulmffimtha rctmurtbenuulyrcd. Exygen Research Page 28 of65 __ Page 63 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn ProtocolNumber: PO001131 .." 14.0 C W m 14.1 UM Ihs following cquuioo to dcuW the mount of PFOA found (io ny/L. b u d OIL peak ucr) u a b the amnjxd culw (lincu wgrcuion parameters) pdcd by the Mu8 Lynx tofhvw program: 14.2 P a r w p l c l forcifiod with known unountr of PFOA pnor IO exuu-tion. UK Ihc followingq u i m u)&Ul* thc proson( neovory. wg - 14.3 UM tbc following quation to Comra tho mount of PFOA found in ng/L IO W). PFOA found @pb) umpls weight (5 g) 14.4 Use the foUowing cqutim to dcu*re the mount of PFOA found in pph busd0ndryW~L -__ Exygen Research Page 29 of 65 - Page 64 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygen ProtocolNumber: Po001I3 1 ANALYTICAL METHOD M a b O d N m k V0001782 Method of Andpb fW tba Dccermhmlonof ?trflncroo*.noic Acid (PFOA) In WmMI by Lmms Analytical Testing F=ility Exyw Raouch 3058 Rcvuch Lhivc Sbta College, PA 16801 Exygen Research Page 65 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO00113I ExygcnProtocolNumber: PO001 131 1.0 scope This mclhod b tobo OmpbyOaforthc hlrtion andquititation of~ u ~ o o c m o i c rid by High Pafnrmsw Liquid chmrmtognphy coupled to s Undem Mass Spectromekic Dctmof (LG'hWMS) in dimeat. 2.0 way 2.1 Ahvl~obsuwufo~laMtorypnctica. 2.2 COaRJI tbc .ppmpriueMSDS b o d D h~ ndllnsMYcbemisd for proper safely pluxutioM. 3.0 SunplcRequuaneut 3.1 Atlart30gOfMumpIeforcxtnc~~. 3.2 No #amplep-iag is mcdedfor rcdimontsamplsr 3.3 Sunplcc rtaod rrbiporucd should be d l o w d to quilibntc io mom m. 3.4 All umplc~m u be thoroughly mixedbefom being umplcd for extraction. 3.5 Sunplc collation prcculw n U be rpsciGed in thc sampling plan for this pmj=t. 4.0 RwgentIMdshududI 4.1 W l r a - H P L C M - . 4.2 4.3 - U e t h o l - H P U : ~ O A~eticA d m t plao 4.5 5.0 INillll 5.1 5.2 5.3 54 5.5 5.6 5.7 5.8 5.9 5.10 5.1 I 9.12 Exygen Research Page 31 of 65 _.__ - Page 66 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001131 ,- tMabod of kUl* I ANALYTICAL hIETHOD for tho Dctormirution of Pufluomoctmic Acid (PFOA)in Sedimentby Lc/Ms/MS 5.13 VoPfp(01. 5.14 Wrillrcciocl &&r. 5.15 Cptmll\lpcupableof spinning50 mLpolvpropylcnctuba at 3000 'pm. 6.0 chroml(0Snphic Sflm 6.1 Analytical C o l m phlophw RP (KoySouc Scientific). 2.1 mm x 50 mm. 5p (PN 82505-052130) 6.2 'Tanpmluw.3w 6.3 Mobile P h w (A) : 2 mM Ammonium Aoauc io Wa(a 6.4 MobilOPhw(8): Mabrmol 6.5 GndisntFTo~: ZaanunA 0.0 65 1.0 65 8.0 25 20.0 25 21.5 65 Flow Rue ULmlLmin) 35 0.3 35 0.3 75 0.3 75 0.3 35 0.3 - 6.6 w&tioaVolumo: 15 pL.(cmbe iaaawdtoas much u 50 pL), 6.7 Qucncitltion: Pmk AIM -cx(anrl mndvdulibmion curve. 6.8 Run Time: 23 minuto* The rbovs wnditiw Miatcndedu 8 guideud m y bechangedin ordor 10 optimi?al&HpLccyrtcm. 7.0 Ms/Ms syrtan 7.1 Mode: ElsWlpny Negative MRM mode, m o n i w 413 +369 d z for PFOA. Tba aboved t i o m MWaded ua pliC ud my bo changed in order to optiinh m0 MSMS sptam. 8.0 PmmIuion of s o w 8.1.1 2 mM rnmonivm .cb.tc in wuer l a prepprod by adding 0.154 & or ammonium lootpteu)lo00mL of wuu. Exygen Research Page 32 of 63 Page 67 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: POOO1131 ExygcnProtocol Number: POOOI I3 1 I ANALYnCALMETHOD 'Method of M y l i r for the Dctcrmidon of PcrtluorooaMoic Acid (PFOA) in Scdimml by Lc/Ms/Ms 8.2 ExtractionSoltuio~~ 8.2.1 1% r c t i c .eidin wUa ir PrOpMd by adding 10 mL of acclic acid 10 lo00 mL ofrvlta. A l l a ~ u kvolumol m y bo prqwed. 9.0 StmdUdRopMtion 9.I Stladpd StodJFoltific.tion Solution 9.1.1 Repuc a m c k solution of -100 p#mL of PFOA by weighink IO mg of Uulvliulrtladpd (eoncctd for p.wily.) and dilutc 0 100 mL with m&l m I12s-mLLDPEW e . 9.1.2 A IO po/mL fonitlcuion solutionof PFOA ic pmpMd by bringinp 10 mL of tho IM) pghdsolution to a W volume of I00 with mslhnnul in a 125 mL LDPE bonb. 9.1.3 A 1.0p@. forliftation solvtionof PFOA it prepared by bringing I O mLof the 10 p#mL solutionto a tid volume of 100 with methmolin a 125 mL U)PE botllc. 9.1.4 A 0.1 pl/mL IOrtMutionsolutionof PFOA iIprcplred by bringmy IO mLof~I~1.e0 p&L ~ l u t i o nIOIfhrrl volumaof 100 with mclhmol in a 12s mL LDPE w e . 9.1.5 A 0.01 p@. fortiKcltion solvtiOn of PFOA u prepucd by brinying IO mL of thc 0.1 p@L solution to L 6 4 volume of 100 with mgbaolh a 125 mLLDPE bonle. 9.1.6 Tho mock urd fortifiuton solutimu p'o to be otorod in a refrigeralorI qpmximucly 4.C and am mble for a muhum period of 6 months fmm thr btsofprrp.ntion. 9.2 Exygen Research -.- Page 33 of 65 - Page 68 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 13 I .- LCIMSIMS 9.2.3 Storo1cllibnrions l m d d 8 in 125-mLLDPE numw-mouth bolllcr .I2 T 106% up tosix moatha. 93.4 Altnrrrte voluma mi wnwntrahuof standuds may be propprcd as & 10.0 BlGehSdVp 10.1 PIOh btcb of umplm omrctrd (typicdly 20 or la)mum includo I( lure OM unrortod warn1 urd two untreated ooncmlr fortified .( known EOOEOO1Rtlauga control spprc) 10 vod@ proculunlrocovcry for the batch. 101 9uiruimb lor 5sld lad hbmtorydupliuta md spike8 will bo rrmifiod I thoqualityvnvuroplan kthir pvjst. 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 woigh 5 g of umplo into 50 mL polypnwylcne m u i h g e tuba (fonify ;IS needed, mpllce Lid mid mix woll). Add 35 mL of 1% rcdic acid.up.vortex Md hake on 8 wrist action shaker for-6ominu~ chuifugotha bham -3000 rpm Cos-20 minutor. cwditiw tbo CU SPE currldga,(1 g 6 mL) by pouing 10 mL methanol followsdby 20mL of WLC Ws (- 2 dmplm). Do not let COlUmn W dry Load (docm()tho umplo an tho condition4 C,I SPE h d p . Discard Chute. Add 20 mL of m-1 to tbo & a t left in tho bllom of the SO mL dhp minutea Cap, VOM lad shake an 8 Wrsi d o n rh.lcr for -30 cdtinlge Ibcbhau -3000 rpnfa -20 minutor we). Decanttho mdunolomtha umaSPE urtridge. Collsotthe eluate. W u h tho solunm with 4 mLof moUumL Colloa tho oluatc and dd it IO the dust8wlktcd ia app I 1.8. CODditiana rscoad CIISPE m d g e (I 6 mL) by w i n g 10mL methanol f o l M by 20 mLof HPLCwlter (- 2 Do not let column w dry Md mS -1 to -200 mL of warn urd kd on tho w n d conditioned SPE amidla auto wicb -5 mL 100% molluaol. CoUoct 5 ml of eluate into grnduatcd - . . Exygen Research -- Poge 34 of 6s Page 69 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO00113I 12.1 Ir\iect mCumo ullountof each Mandud, -le and fonificd sample into L e Lc/Ms/MS sptan. A ulibntion U u h d must pmcdc and follow a11 4vrrd12.2 Shadmh ofPpOA conslpoDdingto at lsut five or more conccnmtion levels muat be iaclvdsd io od y t i u l set. 12.3 An Q~LC(01 of ortwtod cdibnrioa Uanduda must be included DI the beginning and u the ad of a umplc M. Stmdud, mum be intersped M w m way 5-10 umplm. Aa m dtomativc. m oatire sc1 of calibnuun m y be injaded .( tho beginning of a set followed by cdibniion -aanduda ilrrcnparod way 5-10 -la (to .ccoynt for raond act or -). In d t k UIC. Cdibntion #.rdUdr mua be tbe firat Md IS1 hjccticmin a ample w. 12.4 UM linear ctlldrrd CUVQ for quutituion. Linear 1t~dSrdcurves arc for m0 by Liaclrmgmsion wing I/x weightingof peak area ullbntiond u d sonecntntl'onusing MurLynx 3.3 (or quivalcnll 12.5 13.1 Chmnntopmmudrhow a @ of. daughter ion 81 369 m u hwn 8 p a n 1 of 413 amu. The 413 .mu p m t compondr to thc PFOA mion. while the daughterion (369unu)repwuUthe lossof cubon dioxide. 13.2 Method bluJD mmt not cmmin PPOA u Iweb &mtachn the LOQ. If a blmk cuntdna PFOA It Iwoh pule# than 0.2 ag/mL, than a new blank ample mustbe obtainedmdtbo m h Mmust be rwxtnctcd. 13.3 Rooovsirr of umml @a d murix c p k m w be bmvcen 70-130% of ChL kmwn v h w . If caatml+ hlL ou(ddc tha vccptlble limitr. the CntLO set of c~plashould be fo-extmcled. Any matrix spike ouuidc 70. 130% cbould be ovrhuted by the d y l l to detormim if rnxtraclion is WYMtQd 13.4 Any c9b.tioa ctlldrrd found to bo a wiaiul outlier by using the Huge EnOD Tea,may be excluded fmm cbc cdculuion of tho calibration curve. Howow, tbo !atd number of cxm*cd cllibntion rundudt that muld be cxclvdod must llol o r d 20% Of 1& roW number Of exblclcd rIMdudS yoflsd. 13.5 Tho correlation wetticioat (R) for dibnrioa GWO( gonmtcd must be ZO.992 (R' ZO.985). If cdibntion -Its hll outside there limits. then ' acpl numl bo ukm to adjust lnsmunenl operation. and Ihc z r the mlovant(01of umplcl shouldbe reuulyzed. ~~ Page 35 of65 Exygen Research Page 70 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 Exygen Protocol Number: PO001 13 1 Ery(mwh ~NnmbuV~llU 1 i ANALYTICAL METBOD Mahod of Anrlyc* forthoDO(enninrti0nofPafhwmocMoic Acid PFOA) in Sediment by LUA4SiMS 13.6 Rncntion timol bawooa standud# urd mmpla mwt 1101 drift more lhan i4 W within MlnrlyticdNO. Ifmtmtiontimodrift u d r thir limit within Mmrlytied NO ma tksarmuf bcralulyzod 14.1 UM tho followingeprution to c & u W thc mount of PFOA found (in nplmL. b a d on p k a m ) uing tho Nndud CWD (linear ngrersion pmmnen) gmaatad by Q Mur Lyax mltwuopmgrm: PPOA bud(nghL)* x DF DF - factor by which the 5114volume wu slop dilutod. if n c c w s u y 14.2 For 8mpla M6cd with ~JOI W .mount# of PFOA prior to exlction. use R - thc vw -following (K) opualionto u l c u l r t c thc pacrnt r o s o v a y . 14.3 Uw thc followingquation to convwl thc mount of PFOA found in n#mL 10 @6 W). PPOA fouud @ p -b) - umple wei@ (5 s) - 14.4 Uw tbo following epwica (if ~)(c.ou.ryt)o ulcuhte the mouol of PFOA found inppbbucd011 dry WeighL PFOA douad @pb) dry weight PFOA found (ppb)x [100% I IMal soli&(%.)] Exygen Research Page 71 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001131 ANALYTICAL METHOD M s m o d N ~ m b tV~OOO1183 Methodo f h d y ~fbortbe Deterdm.lb. of PerfluomoctrnolrAcld (PPOA) Io Fisb and by LCIMGMS M y l i e d ToslingFacility Exygw~Rsrarch 3058 ReJcarch Drive SUtc College.PA 16801 Approved By -- Exygen Research Page 37 of65 Page 72 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Numbcr: PO001 13 1 1.0 SMpC Tbir methodis to be 0mployOa for the icolatiw rad qwntitationof portluorooctanoic u i d by Hi@ Pefomura Liquid Chmnufognphy coupled to a undem Mass Spoctmmcrnc Dctfftor (Lc/Ms/Ms) in fuh ud cluns. 2.0 srfcty 2.1 NWyO b r a V C U f C hbCdOlyPdCCD. 2.2 ConsulttheappropriateMSDS kfmltuujling my chemical for proper safety prouutionr. 3.0 Sample RcquircmcDt 3.1 AtlowZOgoftsltrrmplaf~cx~tion. 3.2 Sunpls cbwld k proccslsd b&ro extnOtirn. Placethe fromsample in a food procolsor .ndhomo+ with dry ice, Pllea the smplu in containers ud leave opm in ftozcn slonge ovanight to allow for urbon dioxide sublirmsion scll md pllea fhc nmpla in from storage until time o f dyU. 3.3 Sunplo oaUkcion procuhm dll be rpbcitied in tho smnplinp plan for this pmjm. 4.0 h g m t # d S I & d # 4.1 W.tor-HPLC& 4.2 Acc(ocriDile-HPLC - 4.3 Cuban (12o-400meah) went pride 4.4 Mothnol-HPLC@& - 4.5 Silica gel (60-200msrh) h g m t prds 4.6 Fl&il(6O-l00mah)- h g o n t g d o - 4.7 svpcrdomLC-MIa Ragult @e 4.8 I-oanol-HPu:~ - 4.9 L-Ararbic acid b g m t @e 4.10 Dimethyldichbnuihc-hgupaot @e 4.11 T ~ l ~ - R o y a n ( @ & 4.12 4.13 - AmwniumAcohte-A.C.S.ReWIItGndc Pcrflmmo*ooic Acid Sismr-Aldfich 5.0 hshumcrUudEquipnotl( 5.1 A high pedonIuacc liquid cbmrmtomph upahlo of pumping up lo 2 colvcnta qippcd with L wilblc volume injectorcapable of injecting 5-2W pL EwDc*odto 1ludmMu,s m e m(LcIMs/Ms). 5.2 A d e v h to oollct nw dru Impeak intagdon ud qurnliution 5.3 Amlyticd balance capable ofreadinsto o.oooo1 g. - - Exygen Research Page 38 q/ 6j Page 73 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number: PO00113I .. I Method of AMI*# I ANAL.\TICAL METHOD lorthc DocorminnioOof P4uomooUnoic Acid (PFOA) in Fish and C h i by LC/Ms/Ms 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 5.16 6.0 C l n o m u o ~ h i c S ~ 6.1 Aa8iytic.l Column:Fluophro RP ( K o ~ MScientific),2.1 mm x 50 m.511 (PM:82505-052130) 6.2 Tmperalw: 3WC 6.3 Mobile phrc (A) : 2 mM Ammonium in Water 6.4 MobilePhuc(B): MeuvnOl 6.5 GndiontPmpm Y lhdnlbl 0.0 I .o 65 8.0 25 20.0 25 22.5 65 Flow Rue Y - 0.3 35 0.3 75 0.3 75 0.3 35 0.3 6.6 6.7 6.8 - - InjectionVolume: I IpL (CUI bo incmucdto 81 much 81 50 pL). Q u n t i t h n : Puk A m artarulatandud calibration curve. Run Time: 23 minutes. Tho .bowconditioarM intmdedu guide.odm y be c h g d inorder IO optimize mC HPLC iylto3a. Exygen Research Page 74 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: PO001131 Exygen Protocol Number: PO001131 I I ANALYTICAL METHOD Methodof Aarlpu far cho DaorminrtimofPsrthuKoo*moic Acid @KIA) in Ftah and Clam bv Lc/Ms/MS 7.0 MSlMSSptcm 7.1 Modo: ElacUoqmyNa@ve MRM mode,monitoring413 + 369 rmz for PFOA. Tk above oanditiom M intudd u iguide .Odm y be changed in orda to optimizd cho MSMS aytam. 8.0 PrqNntioIlof S O l U t i ~ 8.1 Mobilephuo 8.1.1 2 mM mnrnonium roarto in wuer u prapucd by dding 0.154 g of d m u 8 m t o t o 1000mLofwatm. 83 Bx~mSoMool 8.1.1 2% .rabiorid in mcthmml u px~aradby dinolviq 2 g of ascorbic .cidinlWnL.ofmah.ool. 8.2.2 30% Dme(hyldicbkrmi1am in tolum ir prcpvtd by bringing 3 mL of dimtbyidichlormilMe to s hrulvoluma of 10 mL with toluene. Altmula voluma m y be prrparad. 9.0 StududRCprntion 9.1 sundud smd;lFonifia(iM %h*W 9.1.1 Ropur 1nacL soluriono f -100 )rp/mLof PFOA by weighing 10 m y of dylMMDdud(conootd for purity) nnd dilute to I 0 0 mL with mnbrmol in a 125mL LDPE bottle. 9.13 A 1.0 p&L M k U i o n wlution o f PFOA it prepared by bringing I mL of tbo 100 p#mL solution to ifINI voluma of 100 with mcthwl in s 125 mL D P E botlla. 9.1.3 A 0.1 )r@Lfortificationlolutioa of PPOA is p~oplrcdby bringing IO mLoftha 1.0p@Lsolutionto~fINIvolwneof100withmerh~nolin s 121mL LOPE bottlc. 9.1.4 A 0.01 pvmL fortifiation wlvtim of PFOA is pnp.rsd by bringing 10 mL of UU 0.1 pghnL solution to s fiad volume of 100 with mahrnol in 1 125 mL LDPE bonk. 9.1.I) Tho stock f d u t i o n mlutiom M to be mod in imfrigerwr 81 ~ppmximtdyC C ad M atable for a maximum puiod of 6 months fmm tbc dale of plop.ntion. Exygen Research Page 40 of 65 _._._ Page 75 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO00113 1 Exygen Protocol Number: Po001 13 1 I 1 ANAJATKAL METHOD MscbDd ofAdyais fatbrDaamirutionofPamcomaounoicAcid (PFOA) in Fish and Clamby LCIMSIMS 9.2 SundudC d i i i a r Solutioru 9.2.1 LCIMSIMS calibrationstmula& Mpropand in melhmol via dilution of thc 1.0pphnt foriific.tion solution. 9.21 Tim following ir a lvpicdcamplc: ditionrl concmlnrionsmay bc prcpmduMcdod Frml ofFatiflatica WJlicaOlJmL) 1 .o I .o I A Volunm (mL1 5.0 2.) I .o Dilutcdto (mL) I00 I00 io0 Caummtion bO/mL) 0.05 0.025 0.01 0.01 IO I00 0.00) 0.025 IO 100 0.0025 0. I IO 100 0.00s IO I00 0.001 0.0oOs 9.2.3 S m dI alik.tion s t r r d u b in IZknL LDPE narrow-mouth bollla u 2.C to6.C. up to *x montlu. 9.2.4 Altsrmtc volumes mdcenccntmtiiolllof 8Undardi m y bo pnprnd 8s noodad. 10.0 BatchSolVp 11.0 Sample Extnction 11.1 Woigh 5 g of hrs umple into 50 mL polypropylenc cnrnfugc lubes (foriifyu Dcodsd. rsplwlid md mix well). 11.2 Md30mLof.celoniuilcvdlhrLoonam*lrlion~afor-l5 minutes 11.3 P b I h e t u ~ i n r ~ S f o r - l b o u r . 11.4 Pack d d l i w tbrSPE blbclUdailUJL0cho pcu-lhrpcd a&$. 11.5 Pack chc 20 mL SPE h b a in quart with 2 g Ooriril. 2 8 ailica gel. 2 g arbon, md I g LC-NHI.Condition thc cohrrmu with 20 mL of mcthmol, e. choll M Id,O f rolonihik. dl wuhor. DO MI dlOW the CdUmn IO 11.6 S i b UIO I25 mL par-&@ flulrr by rinsing with tho 30% dimatbyldiehlo~lamin toluene solution. Rime thc lluk with lolumc once. followcd by muhano1 (Ibrea lima). Dry lho flukr completely boron use. Oilbeby lir-drying 01 with a slmm o f n i t ~ ~ g a ~ Exygen Research Page 41 OJ 65 -- Page 76 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 13 1 I 1 .ANAL%l'lCAL WETHOD Mcthodof AMIylia for the D*onninuion ofPerflwmocMoicAcid (PFOA)in Fish and Clam by LC/MsIMS 11.7 11.8 1 I .9 11.10 11.11 11.12 11.13 11.14 11.1s 11.16 11.17 11.18 Ccairihge UU SO mL polypaop~merubdl contlininp umple u -2000 rpm for-lOl.ninUm. Doolnt ulo ectnct OII to ICODditionedSPE column fitted inside the moulhof the psrr-ahpsd flulr. Colla4 the eluate in the I25 mL rilanizcd pcar-rhrpe fluk. Md 10 mL of lcstonitdle to UU umplc in the 50 mL centrifuge tube. Hrnnoomitothe bowr fat phro tu4 a t i u u a ~ fhor -30 rccondr and nnsc tbc riuumiwwith -10mL ofacetonihileinto the tube. sb*otho sampleqpin h-lOminutea on Iwrist-actionrh.ltor. Plroa IhorubdlmImcza for- I burmole. Cmirifuga tbs 50 mL polypopykw htbw contlininp m p l c at -2000 rpm fa -10 miouta. Deunl mC exm* onto UIC smw SPB mlumn. Collect the eluuc into the umo *shaped fluk ud com!&w with tho eluent h m the initial athutioa Pur 10mL oflootonitri* Ihmu& thc SPE column and combine the eluate in thCWCpdUplflUk. Md 3-4 of loctlool to tho extncl in Iho pcu-shaped flask and wlpomeU nducad plaruro using 8 mWyovqmator (It C 4OOC). M.lrs tbc ffDll volume, by Nldin#1 mL of 2% usorbic wid in methanol to thc pur-shaped fluk md rarirl to mix/d*lolw. ~futbca~MWLcVilla~~blepipar. ~~crvnplauaingd~yLC/MS/MS. 12.0 CbrolDltopnphy 12.1 Iqa i the u m c ~ m o uo~f tcrh slmdd, umple and f d t i e d m p l e into the LLYMSMS ayltcm A Jlkrtirm 8laodd mlt precr.de ud follow all 12.2 ~YrOdHmpla. ' StddsofPPOAcxmwp&q ta u I& five or mom concmrmion levels murt k includrdin M uulytiul set. 12.3 An entirea& of cdibntion r u n d d r murt be included u the beginning and ai the a d of iample et. Smduda mum bc intmponod betwan wny 5. IO aamplac. AI M dlarutivo. M dlltiro set of calibration stpndardr may be i n j d U chc beginning of I 101 followed by calibration rtandards ilurrpaedevery 5-10 lmtplu(to .cEwDt for iwcond rc( of alurdudr). In utba uro. ulibntion st#ndda mum k the tint ud lut injectm in Y umple sat 12.4 Uaa l i i IWUIUII RYVOT for qumtilation. Linear atandud curves are gcnaatcdfor UU d y i e by liaaulegmaion u*lp Ilx weightingof puk m a vmua dibnrion mad.rd amcantnliontutu MurLym 3.3 (or equivalent) lomvMrynan ~ a 6 ogr a Page 42 of 65 - .. .. Exygen Research Page 77 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 . - . Exygen Protocol Number:PO00113 1 1 ' k m - b M.WNnmbn VOW1783 ANALYTICAL METHOD Mahod of AfulyluforthcDUumidonof Pafluomocunoic Acid (PFOA)in Fish and C l M S by LuhWMs 12.5 Svlrplo rrrponw rhould DOI o x e d rundud rrrponrcr. Any ramplea thri ucsod dudud nrponsurbould be Mcrdilutod and reanalyzed 13.0 AscoptncoCritair 13.1 ChmmuopmnUIW rbow i)p d of 8 dau@a ion u 369 MU from a pnrenl of 413 MU. 7hc 413 m u p n a t cmrrrpondrlo tho PFOA anion. while the duybtorica(369 mu) ropmenbtho IOU of cubm dioxide. e 13.2 Mahod b l a h mud not contain PFOA U lovelr p a l a than tho LOQ If a blank c a d m PFOA 0 Iovdr thn 0.5 ppb. them a new blank simple mustboobhinod ud the mtim mmustbomox-tcd. 13.3 R a w u i r ofcam1 apikea md murix @a mud bo bowan 70430% of tho$kmwn vrlua. If r 04ohOl pika falls ouuido tho acccplablc limits, the a l hm orsullplw huldbcm.cxtnc~. 13.4 h y ulibntia,dlldud found to be a stuLtic.I outlier by using tho Huge Enor Tclt may bo acludod from mS calculuion of tho calibration curve Hmrdvor, tha total wrrkr of caliWon rturd.rd,vut could bo excluded mw~aQlccoduW.ofthctotlln~ofwdudcyjoded. 13.5 Tha uurohtion c ~ ! t i ~ (iR~) tf a ulibntion curvu gcnomtd must be 20.992 (R' 20.985). If ulibntion d t a Bu ouUido lbuc limits. then c p p r o p h M p s mud be Wrm lo lajwt insmnml oporuion. and the ~athcr~of~lusbouldbcd~. 13.6 hention timol betwoe ttmiuds md umplor mum 1101 driA mom than f 4 Y. withinMuuIjlic81run. If ntmtion time drifl oxccodr this limit wilhiii UIwlytiul run then thc sa mustbo m y r a d . 14.0 Cdoul.tiolu 14.1 Usethe following qualion to cdcuW the mnouot of PFOA found (in ng/mL. b u d on peak aun) win8 the Nndvdcutw flinur ropeuion panmeten) - gmmted by h o Mur Lynx soflware program: PFOA found ( a m ) dope 14.2 UM1&folMog oplutionto 0ollvQt tha pwuot of PPOA found inng/mL to ns/s W). - PFOA bund(ppb) m p l e weight (g) -DF fvtcrby which the 6n.I volume vu diluted. ifncecwIy. - - - Page 43 of65 Exygen Research Page 78 of 100 Interim Report #2-halysis of Surface Water Samples Exygen Study No.: PO001131 Fxygen Protocol Number:PO001131 1 &\AL\'llC.U JlETtlOD Method of A ~ I y r i rfor cba D M e i d d o n of PahrwxUmo,c Acid (PFOA) in Fish urd Exygen Research Page 44 0f63 Page 79 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygea Pmtocol Number: PO001131 - - ANALYTICAL METHOD MabodNumbcl: V0001784 __ .-Exygen Research T o u l P a p ~ :7 Page 45 0f 65 _- Page 80 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number:PO00I 131 I r y p n Irurcll Mnhod Numbcr V W I 7114 1 &YAL$TlCAL METHOD ! 1 M W of ADllpufor the Daamhtion of Pcrfluomoctlaoic Acid QFOA) in Vcgelation bv LCIMSIMS I .o 2.0 3.0 4.0 5.0 -. Exygen Research Page 46 of63 Page 81 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 P. Exygen ProtocolNumbcr:PO001131 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 6.0 CtnormllopnphicSflom 6.1 M y t i c a l Column:Fluophw RP (Kcytlonc Scientific). 2.1 nun x 50 mm. 5b1 ( P N 82505-052130) 6.2 Tanprrturr:3O.C 6.3 Mobilo FUM(A) : 2 mM knmoniumAc*rte in W W 6.4 MobibPhua(B): Mellur~ol 6.5 GndieaIPmpm: Flow Rue Y " " " " P- IiauLQmu 0.0 65 0.3 1 .o 65 35 0.3 8.0 25 75 0.3 20.0 25 75 0.3 22.5 65 35 0.3 6.6 6.7 6.8 - - wcaVolumo: 15 pL (ormbe inauscd lou much u 50 pL). Quntilltiolr:Palr AIU cxtmul ataidudwlibntion curve. Run Tim: 23 mlnucsl. Tho&ova condiditionrME itltoDdodu 8 guide and may be changed inordcr to optimizO~HPLCayr(0m. Exygen Research Page 82 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1 131 Exygcn Protocol Number:POOOI13 1 Iiaygc. RpuI* LMabod ofAnd& W N u m b c r VOa11784 I A k A L Y T l W >lETHOD for thc Darpmiion ofPortlwrwcmnoic Acid (PFOA) in Vegetation bv LC/MsIMS 8.0 PIsplrUionofSotutiom 8.1 Mobilophur 8.1.1 2 mM d u m acetate in wr(a b prspued by ldding 0.154 8 of .mmoniumuaueto 1wo d of water. 8.2 Extnction Solutiom 8.2.1 2% amubic acid in mocllurol isprepredby dissolving2 g of ucorbic .Oidin1WmLOf~Ol. 8.2.2 30% Ddyldichlo!t4lrw in toluac L pmplnd by bringing 3 mL o f d i m a h y l d ie~toa8ollvolumoof IOmLwithwlucnc. Altsmrtc VOmW ay be proprrod. 9.0 sund.rdRcpontion 9.1 S M d v d StocwponjfiortionSolution 9.1.1 R c p r r r ~ n o c k a o l u t i o n o f - l W ~ ~ o f P F bOyAweighing 10my of vvlytiul Nndpd(conoctodfor purity) and dilute to I W mL wilh &I io a I 2 5 y d LDPE bottle. 9.1.2 A 1.0 @L fau&uionaolution of PPOA is PnpMd by bringing I mL of the 100 p#/mL rohlion to a LLnrl volume of 100 with methanol in a 125 mL LDPE bottle. 9.1.3 A 0.1 pg/mL forciflcltion solutionof PFOA is prep& by bringing IO mL of tho 1.0 p g h d mlution to a find volume of I00with mchrml in L 12.5 mL LDPE botlle. 9.1.4 A 0.01 pg/mL fortihutioa solution of PFOA is p r e p a d by bringiny 10 mL of tho 0.1 &nL solution to a hrul volume of 100 with mglyDolina I25 mL LDPB boltla 9.1.5 Thc ltocL .ndlOrti6utioaaolutloiu Mto be atorcd in 8 nbiDorptor(It q p m x h l y 4 T lad arc stable for a nuximum period of 6 months from the due of prrplrrcion 9.2 sc.ldudCdbntionSolvtiom 9.2.1 LCIMSIMS ulibntion mbnduds YI prepuod in methmml via dilution oftho1.0pphnLlortifiutionsolutioa Exygen Research Page 48 of65 - Page 83 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygen Protocol Number:PO001131 ExypnD*ush I hielhod of And* MnhodNumbn VOOOl784 I MALYllCAL lllllTLlOD la tho Daamiarton of PCmuomocunOicAcid QFOA) in Vegetation by L c / M s / M S 9.2.2 The blbwing ir L tvpiul cxmple: ddilionrl arncentntionr may k preplrodUosdod Q '.' OIFatificltia Sohmbn(rx/KlL) I .o 1.0 1.0 0.W 0.025 PI Vdumc (mL) 5.0 2.5 1.0 IO IO IO Dilukdto (mL) 100 IW IW la0 100 IM Find caKmm(ion [UdlllL) 0.05 0.025 0.01 0.005 0.0015 O MI 10.1 Ea91buoh o f pmpfcr cxaraed (cypkrlly 20 or lm) mwt urlude ai leasf one ull(l0ltod conlml rad fuo unlmtal wnuola fortified ai known concealntioru (lab umbul pike) lo vaify pmoodunl mcovory for the balch 101 Ryimumb la dcld d Lbantorydupliurcr md spikes will be rpecilied in thc qvllity UNMWplan for thispmject. 11.0 Sample Exm*ion 11.1 Weigh 5 g of horn wnple into SO mL polypmpyleoc centrifuge iubes (forti@u oaeded,replacelid rad mix well). 11.2 Add 30mL of lcctonitrilsand Ib*oon a wrid d o n shakerfor -15 minula. 11.3 Cenbifuge the SO mL polypropylenetuba containing sample at -2000 rpin fa-10 minuta. 11.4 Pack ud Mnditim tho SPR tubcsradaimthcpur-dupuJ!lads. 11.5 Pack the 20 mL SPE hrbcl in mqnmw with 2 g floriril. 2 g silica pel. 2 g c&on, Od I g LC-MIz. Gmdition Iho columna with 20 mL of mclhurol. ulsn 20 mL of W(0nitrilr. Diacud all wuhu. Do not allow the column to dy. 11.6 S i k h UK 125 mL peu-shqd f l u k ~by nnring with the 30% dimethyldichlomsIb intolwaowlution. Rinw h e fluk with toluene once. followed by methnol (tbnr timw). Dry the tL*r complstely before use, either by lir-dryiop Q wiL a strean of ni(r0gm. 11.7 Deumth e x m on lo L wnditionedSPB column fitted inside thc mouth 01' chs pop-asedauk. & l l a the elwte in ulc 125 mL silanired pcu-rhqx nuk. ~ -- Exygen Research Page 49 of 6.5 _. __ Page 84 of 100 Interim Report #2-Analysis of Surface Water Samples ~ ~ ~~ Exygen Study No.: PO001 131 ExygenProtocol Number: PO001131 13.1 Chmmtogmmmud rbmv ape.& ofadaughtor ion at 369 M U from a parent of 413 MU. Tbo 413 MU puslt SMOrpandr to thc PFOA anion. while Ihr duuphccrion(369MU) rrprrronuthe IOU of cuboo dioxide. -- ._ Exygen Research Page 50 of 65 Page 85 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1131 Exygen Protocol Number: POOO 1 I3 I 13.2 13.3 13.4 13.5 13.6 14.0 C&ul.tiau 14.1 14.2 14.3 ~~ _. Exygen Research Page 51 of 65 Page 86 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1131 Exygen Protocol Number: POOO 1I3 I Appmvd By: ToulPrpot: 7 -- --- _.. - Page 52 of6S Exygen Research Page 87 of 100 InterimReport #2-halysis of SurfaceWater Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001131 1.0 smpe This mahod u to k cmpr0)d for the ivrlition ud qmtitation of psmuomoctanolc acid by High PafomuDoc Liquid Chnalogmphy couplcd lo a tandem MMS Spccmnmic D*caor (Lc/Ms/Ms)in anrlld liver. 2.0 Su%y 2.1 Almyrokavcnfch~bontocypncticcr 2.2 W t the lpprqniltoMSDSW o n h a d i n g m y c h m i u l for proper safety prsuutiolU. 3.0 SlmplcRoquiranaU 3.1 Allcut 5poftoltrmnpkforextrrtion. 3.2 Sunplor should ba proceurdkfm extraction. Place the fromsample in a food paaror md hmno- with dry ice. Place the a m p l a in containers md law opm in hzut strmp ovani& b dow for &o dioxide rubliiuion SUI ud pLvc the umplu in frozen r t o ~ euntil lime of ~ a p iA~lta.natdy, if thm is M b d l i c i u u unounf of sample (-Ius than 5 0). thenM pnnx&ng is n c ~ o u l ymd lhc samplewn be used as supplied 3.3 Sample collsCtim proccduru will be lpccifid in the sampling plan for this pmjcct. 4.0 R w n d S l u d u b 4.1 W*-HPLCgdc 4.2 Mclhnol-WLCH 4.3 Acdonibih-HPLC@ 4.4 4.5 - knmollirrmAcebte-Ac.s.RuJcmtond0 paflumooaam'e Acid S i m A l b i c h v, 5.0 ~ t m d ! 4 p i p m m U 5.1 A high p0"mYlcf liquid @IC of pumping up lo 2 mlwDtr cqwppcdwtb 1 wiablc volume qOc(0r -IC of injectin8 5.2W pL wmos10d101lmdem M m SF.o?wMy(LC/MSmrS). 5.2 A dovim0 collestm&la br peak urteprulon mdquanliwion. 5.3 rwyliul blllnce Clplbl. of MdinpLo D . m I p. 5.4 SO mL dirponblcpolypmpyknc mbiip tubas. 5.5 15 mLdilpoublcpolypmpyloaoCcmtriiptubes. 5.6 ~ l e m i u o p i p a (t5C1oopL, 100-2ooUL). 5.7 125-td LDPE m W - m Q u t t hbollla. 5.6 2 m L c l w HPU:vid kit. Page 53 0x65 Exygen Research Page 88 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1131 Exygen Protocol Numbcr: POOOI 13 1 .- Ah&Y"ICAL A f m f O D I J Mocbod ofAmlyru fcf thc DaOrmida~of POmuomod.noicAcid (PFOA) in Small 5,9 L)iqyablapipcua. 5.10 Auloprpata (1001ooO pL md 10-100 pL). with dilpouble tips 5.1I W u a S q PJr V r 6 w (Io) tCl8 SPE Cuaidgu. 5.12 SPEmwnmm~ilobl 5.13 Tirn#miur. 5.14 Wd-aclion alukci. 5.15 C d h g E clplbk O f o p b I I i q 15 mlpOlyPmpylUilENbOr U 3000 Qm. 6.0 QuomuosnphicSyitcm 6.1 Aml)tiul Column:pluophuRp W ~ IScWientibc), 2.1 mm x 50 mm. Sit ( P N 82505452130) 6.2 Tmpauuro: 30% 6.3 Mobile pbuc(A) : 2 mM Ammonium Acmcc in W.(n 6.4 Mobilephpe(B): Mathawl 6.5 O n d i e n t R o ~ u ~ ~ : flow Ruc 9 UImlLSliol 0.0 35 0.3 1 .o 65 35 0.3 1.0 25 75 0.3 20.0 25 15 0.3 22.5 65 35 0.3 6.6 6.7 6.8 - - lnjdmVohunc: 15 pL (ank inmuod to u much u 50 #L). Quatit.tion: Peak A m o x t a d lurdud dibratioocurve. RUB Time: 23 min.ocSr. Thor b o v 0 W t i o 1m~mirrtadcdu rguida md my be chlagd in orderto 0plLnizothcHPLcry.tom. 7.1 Modo: E1-y PFOA. NegativehfRM modc,monitoniq413 -b 369 d z for 'Tbe above d t i w u uc intaaded u L @de MII may be changed in order IO optimizethe MSMS lynan. Exygen Research Page 54 of6S Page 89 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.:PO001131 ExygenProtocolNumber: PO001I 3 1 I .1 A X d A T I C M METHOD Mslbod o f d y d r forb DomminuioaofPlsfluomo*norc Acid (PFOA) in Small MMrmlLiverby LC/Ms/MS 8.0 RopMtiooofsolu~ 8.1 Mobihphro 8.1.1 2 mM d m &-URIiCn water ia prcpucd by adding 0.154 y of` d u mrewe IOIO00 mLof water. Altmu(o voluma mly bo PISpMd 9.0 SundudPmpamion 9.1 S M StawForliflUtimSolution 9.1.1 Rspma no* solution of -100 pghnLof PFOA by weighing IO mp ofmuly(ialrtPdud(corndodf~purity)~uldllutoelO0mL with mclhmol ina 12-mL LDPE W e . 9.13 A 1.0 p & L fortificmtion solution of PFOA is prcprrod by bnnginy I mL of tho 100 p g / d aolutioo (0 a find volume of IO0 with mahmol m L 125 mL LDPE boltlo. 9.1.3 A 0.1 p@L fortification wolution of PFOA is prspucdby brinpinp IO mL of h e 1.0pg/mL aolution to a find volumeof IO0with mrhrnol in 8 12) mL LDPE boule. 9.1.4 l l w nodr ad loltltlcuionaoluti~Mlobaalored in I~fril~cruoPIr a p p x h l d y 4`c md arc atable ku 8 nuximum period of 6 months h m (he date ofpqurtioa. 9.2 SurdudWbrm'onSolutiom 9.2.1 Lc/Ms/Msc r l r i o n ltlndpdr am proprod in m h o 1 via dilution of chs 0.1p&L aaciec.tionsolution 9 2 3 l l w followinl~ia a typical orunplc:rdditiod wnccnbuionr may he pcpucdunoodcd. ... .. IW 1.0 IW 2.0 IW 1 A 100 I .o 51) 10 IW os 1_ 0_ LO I.W~~ 0.1 1.0 IO LOO 0.1 93.3 Ston dl UlibntiOOarrdudr in 125-mL LDPE numw-mouth buttler rt 2.C to 6% up (0 ah montlu. 9.2.4 Altcrmtcvohuna md concSnm(i0ru of rt.nd.rda may bc p r e p a d YI mdcd. P.*e 4 O f 7 /- Page 55 of 65 __ Exygen Research Page 90 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 13 I UY8- I*mrsL Metbod ~ u m b ovr woiias I AhdU.YTICALMETHOD I MathodofMyda fortho t ) e t m h b'Mof Pafhuvoocunoic Acid (PFOA) in Small Munnml Uvcr by L C l M y M S 10.0 BltehSocUp 10.1 E r h bw1 of umplu oxmctal (typically 20 or Ius) mwt include at least 00. unhmtad control ud two untmted conaols foriificd at known c o ~ (Iw &canbul pike)to Wify pmcedunl raovery for the batch 10.2 Rcqummb far field md L.bontwydupliuta .nd spikes will be spzcificd inthc qualityUIP~Y~OPIOUI for thli project. 11.0 Sunplo Extnctiw 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 I I .9 11.10 11.1 I Wmgb 1 g of umple into i50 mL polypropylene sentnfugc tubes (fomfy u nocded. replro lid md mix well). Nok that Jtcmite weightsof liver mny be mDuuroddcpding Mthc umpbsits ivrilable for UM. Add watertothe umple fora 6 n d volumeof 10mL. Homogah umplo wing Ltinwmizor for -1 minuts. TMIQ I mL of thc =PIC wing 8 dispouble pipene into a I5 mL dicporr6k raaui- arbc. Add 5 mLof raoaitrilo ud duke b r -20 minutuon 8 wrist-actionshaker calrifuptho tubelu -3000 rpm tix -5 minutel. DDunt the mpaualmt into I 50 mL dispouble conaifigc Nbe md add 35 mL o f W W . Conditica tho G g WE d d g a ( I g, 6 mL) by pauing 10 mL methanol Pollowed by 5 mL of HPU:water (- 2 WMCW)1.101 let columnrundry - Lod thc&lo and t i o n c d C. SPE &ridge. Discad elurte. Elvtc with -2 mL of m c t h w l Collat 2 mL of elute into a gmduted 15 mLpolypmpyIa18 c s a w lute(find volume 2 mL). A M l p umplol *eloctrmpry LCIMSIMS. 12.1 lnjoct tho umc lDlo(ID1of orb Itladpd.rrmpk .adfortified umple into the LUMSMs 8 w . A C d h U h d d must precede md follow all d y r e d umplu. 12.2 SuodwbofPFOA ' to at IOU( five M mom cowontntionlevels lnUdbe illCludedhlUI UldYdCdSo2 12.3 An entire IOI of ulikuion stauldI must be included at the begnningand ni thc ad of L umplc Io(. Standvdr must be mlcnprncd between every 5-10 umplu. As M d ~ t i v c M , cntirc $01 of ulibntion sianndudr may hc idcct6d L( the be@nninp of L Io( followed by cslibnuon standards iDlarpoMd way 5-10 rvnplu (to account Tor L ward set of rtandardr) In cilhu cue. ulibntion wdudr m w be the first md IMI injection in 1 umplc ret. 12.4 Urn liner mndd culv~for qurntitrtion. Liocu sundud curves arc gcnmtcd fortho d y l o by litmrregmuionwing Ihr weighting ofpeak uea P- __.__- Page 56 of 65 __ Exygen Research Page 91 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn ProtocolNumber: PO00113I 13.1 chrrmutoopn mwt lbow a porlr of (Id~ughtuion u 369 m u from a parent of 413 mu. TbO 413 m u p ~ l lwlnwpod#lo tho PFOA mion. while the b o (369 .mu)repmenutho loor of cubon dioxide. 13.2 Mabodb b k a mud nol contain PFOA u levels greaterthan lhe LOQ. If II blU* corctlinr PFOA It lcvohgoaertbvl IO nu& lhcn new blank sample mudbc obtainednd tbs&M nuutbo n-oxtracted. 13.3 Rocowim of control @kea and llutrix spikea must br bewm 70-13W.of thir know values. If a oolllml rpiko Llh Wuide the wccpublc limits. he oath I* of mnple~cbould bo ~ w l m f t o d . Any maoh spike ouuidc 7033W dmdd bo evaluated by tho uulytl to determine if re-extnction is W#mtltd. 13.4 Any ulibntim mndvd bud to bo l Uatistiul wllicr by wing the Huge Enor T a m y bo excluded fmm tbs uloulrtion of thc ulibntion curve Howcvn, tbs l0t.l numbs of dbr8tion rlndub I b r could bc excluded mudnot a d 20% of ulo totalnumbwof rtad.rdr injcctod. 13.5 lb conolltioD cocflicioat (R) TOC d i i c w c l gemrated must be 20.992 Ca' 20.98S). If mlibntioon m u l l s 1.11 outside tbcsc limits. then mum k ULea to djusi hdmnncnt Dpcntion. and the rurdpdr of tho nlcvlatmI of mmplorrhovld k rurulyzcd. 13.6 RdoDtion tMol bdwmn Nndmda md u m p l ~m~wi MI drin mom than f 4 K within UI d y l j c d m. If roccOtion lime drift cxcccdr lhia limil within U I d ~ C Mdltbmthc M nIud bo d y r e d . 14.0 Calcul.tiw 14.1 Use Uw C o w oquUionto mIcu*Icthc uwunt of PFOA found (in np/mL. bated 011 peak ua)wing thc d u d ~ulye(lincu repusion parmc~en~ genmbd by t h o b Lym mfhrn prom: - PFOA f d (nphnL) x DF x aliquot fwor dopc -DF Ewrby wiicb tho Mvolume wu diluted.if necsulry. Auquothocar-lo Exygen Research Page S7 of 6s -. Page 92 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 Exygcn Protocol Number: PO001 131 EayaeuRsanuch M8lbod Numbcr VooOI7IJ I 1 ANALY 1ICAL METHOD MethodofA d p b for thcDanminuiono fP e r f l q i c Acid (pFOA) in SmII MaunulL i v r by w/Ms/Ms -. 14.2 For umplr falifld with bmwn uIIouII1(o f PFOA prior IO extraction. use thc rollowiugOpUrtiaD(0u*u*tc tho porsclllncovcry. 14.3 Use tbc Mowingquatiion(0 oonvmthe mount of PFOA found in n@mL IO lyls W). PFOA bund@pb)- urnplc weight (g) Exygen Research Pl'C 7 or7 Page Sa of 65 Page 93 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 n Exygcn Protocol Number:PO001131 ANALYTICAL. METHOD MolhodNumber: VoOo1786 AnalyticalT d n g Facility: Exygcn Raomh 3058 Rcrcpch Drive State Collage. PA 16801 ._ .. .... . _ _ Page 59 of 65 ._ Exygen Research Page 94 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygcn Protocol Number: PO001 13 I 1 ' E.-- M*bodNumkr VW1786 ANALkllCAL METHOD Mahod of AnRlylhfor IhcD c k d n a h of Porfluomocpnoic Acid (PFOA) in Small Munmd Saum by LcIMs/Ms - I .o stops Thir mahod u to bs ompbM lor tho &OW md qurmtitati~of pcrfluomcctanoic wid by Hi@ P e f o m u ~ ~L~iqeuid clmmalography coupled to a tandem Mass Spostmmctn'c Dclfftor (Lc/Ms/MS) in mdI manma1serum. 2.0 sflay 2. I Always oboosvcd e labontorypncticcr. 2.2 Consult L o .ppmPriakMSDS beforehudling any chemical for pmpcr safety prsclutionr. 3.0 Smplc RoquLaamt 3.1 AtlloutImLoftwlaunploforo1o3h1otion. 3.2 No umple pmooUiag u noodod fm umplcl. Howcvpr. b u n worn lmrplclmult to llkwd toEomplotely b w IO mom rosnpcn?uobefore w. 3 3 Smplo solladonpmcedvror will k lpoci5ed in the umpllnn plan for this 4.0 5.0 Exygen Research Page 60of 65 Page 95 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: POOO1131 Exygen Protocol Number: POOOI I3 I EanuEOurh MelkdNlllllkrVW17Yb I 1 Alhi.Yl1CAL. HETHOD M c l W o f A n r l y d : I m t b c D a m n i n u l o n o f P a n ~ i c A c i d (PF0A)inSmull Mrmnul Scrvm by LC/MS/MS _. 5.14 wrirt-.ctionItlnka. 5.15 Ccntrifug EIp.blcafspilmiq IS mL polypmpylme tubs at 3000 pm. 6.0 Cluumuo~icSyrtcm 6.1 Arulyticdcolumn:Pluophw RP (Koyrtons Scientific).2.I mm x 50 mm. 5p (PM: 62505052l30) 6.2 Tompenturo: 3o.c 6.3 Mobik phvo (A): 2 mMAmmonium Ambte in Warn 6.4 MobilcPbuc(B): Mahrmol 6.5 GndicnlRogrm: vI .o 8.0 20.0 22.5 u 65 65 25 25 65 Flow &IC ZLBImlLminl 35 0.3 35 0.3 15 0.3 75 0.3 35 0.3 6.6 lDjoaion Volume: 15 pL (CUI be incrwcd to u much u 50 pL) 6.7 6.8 - Quaatitstion: Puk A m - exmud dlndud crlibntioncurve. run Tim^: 23 min~ler The aboveconditioluMirUcndcd8a 8 guide md may be c h p e d in order to OptimiEO the HPLC :yrten. 7.0 MS/MSSyUmn 7.1 Mode: Elweorpny Nquive MRMmode, monitoring4 I3 +369 m/z for PPOA. Tlw above oooditiorv am in(0Sldced n I @ awl may be changed in order lo optimicthsMSMS tynan. 8.0 PrcgMtioo of solutiolv 8.1 M o b i l c ~ 8.1.1 2 mM -Nw u-aaIe In w m i: prepared by adding 0.154 g of ammonium .cct.tcto loo0mL o fw w . AltomnovahlmeJrmyboproplJDd Exygen Research Page 61 of 65 - Page 96 of 100 ~~ Interim Report #'L-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygen Protocol Number:PO00I 131 m- M I t h o d N d r VooO176b 1 J ANALYTICAL ,MISTHOD Methodof Analylir f o r t h D e e a of P~uoroOamoicAcid (PFOA) in Small Mlmmal Serum by LCiMsIMS 9.0 Stlrrd.rdRsplntion 9.1 Suobrd Stawponificuion Solution 9.1.1 Pmpuc a atock solutionof -100 p&/mLof PFOA by weighing IO nig Of Wldyt*J a ( u d u d (-td foJ purity) Md dilute to 100 mL w l h mcthrnol in 8 125-mLLDPE bonle. 9.1.2 A 1.0 &TIL forciflw'on solution of PFOA is prop8redby bringing I mL of tho 100 pdmL aolution IO L 6nnl volume of L O O with w h o l in 8 125 mL LOPE W e . 9.1.3 A 0.1 p g h d fortifiulioocolution of PFOA hprepared by bringins IO mLofcbc1.0~~mLsollbionto~hnrlvolumclo0f0wiUlmcrhlnolin L 125 mL LDPe botue. 9.1.4 Tbo rtocL d folti6UtioacolutimPO to bo s t d in a refripemtorat lppmxiMcoly4.C urd uc atable for L m i m u m period of 6 months borncbcdueof prepmtior~ 9.2 Stpdvd Cdibruioa SolvtiOrV 92.1 LCIMSIMSollibntionatmlmda uc prrpMdin m*hmol via dilution of (ho 0.1 rphaL W6c.tion M~UI~OII. 92.2 'lbfollowing u L typical ample: additional coocurtruionr may be PrOpMd U MCdOd. Caumbmion Final ofFmifKuiia Volume Dilutedo Concmmrioo Solutim(r&nL) (mL) (mL) (ndtnL) IW 5.0 IW 5.0 100 2.0 100 2.0 100 1 .o IW I .o 5.0 IO 100 0.5 2.0 10 100 0.2 1.0 IO 1W 0 .I 9.2.3 Store all ulibntions t d w J 8 in 125-mL LDPE nurowmouth bottles u ZOCto 6T,up tor*.monthr. 9.2.4 AltanUe wluma ud coaccatntiocuof C t m d d may be preparediu nseded. Exygen Research Page 62 of 65 Page 97 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001 131 Exygen Protocol Number:PO001131 Manmal Senun by LCMS/Ms 11.0 11.1 M- 1 mL ofrrmplc into i50 mL polypmpylcac cenvifu8c tubu (fortify u oecdod.rcp*cc lid and mix well). NOCS th.1 allmite volumes of serunl m ybe mMllodw a g on the umple lise availableLr we. 11.2 Add wuor (0 tbe umple faIhlvolumeof 20 mL Cap tightly 11.3 Voltcr for4 minuto. 11.4 'hasfax 1 mL of tho umple wing a dilpoublo pipate into a I 5 mL dispmlblcCoatriRy0~. 11.5 Add 5 mLof loawihile Ild chkc for -20 minutea Ma wrist-action rh.kcr. 11.6 Cavifuga tbetubor It-3000 rpm for-5 minuter. 11.7 DoMt tbo supmml~Iinto L SO mL dirpoublc ccoeifuge lube and add 35 mL of w e . 11.8 Condition tbc CISWE cutridgw ( I g, 6 mL) by ppsrins IO mL mnhanol followedby S mL ofHPLC w&r (- 2 dmp/ls). Do no1 Is(column N n dry 11.9 tbt rrmolcon cwditioncdCIISPEcMxidnc. Dixud eluue. 12.0 12.1 Inject the umc uDouo(of each ttmd.rQ irmple and fortitid sample into the LClMslMS ryasm. A clllbntion amdud mwt pmodc and follow all ~yzodumplcl. 111 Sluxldsof PFOA ' m u lout ftvoor mora OOrSe~VUiOnlevels mustbo included i n n mlytiulset. 12.3 An &set dulibnth urndds mutt be included.Ithe beguuung and ai the end of 1 umple set. S l d w & m u be inlmpmed bchucm every 5- II1 umplcl. h UI lltanuivo, 111 onlirc KI of calibration standards may be q k t s d U mS beginning O f 1 MI followcd by cdibrauon rtandnnlb k&mpomd cvay 5-10umplos (to lffount for a w n d set of rundprds). In oicba cuo, &Won rt;lodub mutt bo the fint and lmt injection m a U m p b 8eI. 12.4 UWl i i r(udud CU~YDI for quvltitatiim Linear ~(ud.rdcurves are gamated Tor the d y c by~ l i n a regmuion wing Ih weightingof peak area v m w dibntioa ltudvd concamtionwing MwLynx 3.3 (or equivalent) wmvpo lystmn. 12.5 Sunplc rorporvc lbould not exceed rtudud M~OIUCS. Any samples ihai n c d almdvd rclponrcllbouldbe further diluted ud rcuulyzed. Exygen Research Page 63 of6S Page 98 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen Study No.: PO001131 ExygmProtocol Number: PO001131 ' ' E a r n I*rusb MIkdNumkr VMwII786 ANALYTICAL MYTAOD Method of M y d r Emthc DacrminrtionofPOmuomocmmicAcid (PFOA) in Small Mumnd Scnunby Lc/Ms/Ms 13.1 ChasulopnmInUd cbow L POJ:of 8 daughter ion at 369 mnu lrom a pucnr of413 mu. Tba 413 MU pMDt comrpoadt to h e PFOA anion. while IIK h g h t a ion(369 MU)npclmtlthe Ion of urbondioxide. 13.1 Mnhodb h k a rnw not camin PFOA u level8 greater &an the Lop. If a blank con& PFOA U level8 pats thn 10 WmL. than a new blink umple must be Dbtllnedmdtheeatire wl must be Ic-oxv.sIcd. 13.3 RccoWic* of Foatml @or md lruhix spikes muct be Ween70-130./0 of thcir known vdua. Ita conhDl spike f8lls outrids cho acceptable limits. the &set of umpIa lhovldbe m-ahctcd. Any murix spike outside 70- 130% b u l d be wrhutod by tbo uulyn to dammine if mexulcrion is WmULud. 13.4 Any mlibntioll lilldvdbund to be I UUi8ticrl o u t b by wing the Huge h Tclc. may be cxchdal h tbo ukuluion of the calibration curve Howsvcr. tbc tow numkr of dbntion amdvdr tbU could be excluded must mlo x c d 20% oflbctow n u m bof aMdudr injcctcd. 13.5 The avnlrrion eOemciCm (R) for calibration WCIgenerued must bc 20.997. (R' 20.965). If cllibntion rsrvlu fdl outside thew limits. then lppmprirtc aapr muat be taka to mljajya iiumunent operation. and rhc 8tMdads O r h NIWMrsIt of m p l u rhouldbe m r l y r d . 13.6 Ramtion h a bdwm iuadudr Md umplo8 musl not drift more lhdii t 4 K witbin Muulyticll M.If romtion time drifI exceeds this limit within c Mwlytical tunthenthe Ict must be rcuulyrcd. 14.1 Use the bUowkgsqpdioalo UkuW the mountofPFOA found (in n@mL. bwd at p d ana) wing the ecurve ( l i m regression panmetem ~Cnontodby the Maw Lynx wAwm pm-: PFOA found (n&L) = x DF I aliquoc factor - - slope DF Mor by which tho &ul wlvmow u diluted. if (LDOO~UI~. Miqwt frCa 20 14.2 . .....-. .. Exygen Research Page 64 of 45 .. - Page 99 of 100 Interim Report #2-Analysis of Surface Water Samples Exygen StudyNo.: POOO1131 Exygcn Protocol Number:POOOI I3 I ai^. rumucb MnhodNunhr VOW17116 - ANALYTICALMETHOD I J Mclhodof M y a i i for tho Dnorminuionof PSmuomoctanaicAcid P F O N in Small MMmd Serumby LcIMs/MS 14.3 UK tho fo1bwing eqvlrion 10 m v Q t Um @noun1of PFOA found in nlymL IO PPb. PFOA fouud @pb) - nmplc wlumc (mL) -- - - ... - - -._ Exygen Research Page 65 of 65 Page 100 of 100