 GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater 

Samples Collected at Off-Site Wells in Decatur, AL in March/April 2012

Study Title

Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and 

Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 

Site-Related Monitoring Program 

Data Requirement 

EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792

Study Director

Jaisimha Kesari P.E., DEE

Weston Solutions, Inc.

1400 Weston Way

West Chester, PA 19380

Phone: 610-701-3761

Author

Susan Wolf

3M Environmental Laboratory

Interim Report Completion Date 

Date of signing

Performing Laboratory

3M Environmental Health and Safety Operations

Environmental Laboratory

3M Center, Bldg 260-05-N-17

St. Paul, MN 55144

Project Identification

GLP10-01-02-29 

 

Total Number of Pages

148

Testing Cert #2052.01

The testing reported herein meet the requirements of ANSI/ISO/IEC 17025:2005 “General Requirements for 

the Competence of Testing and Calibration Laboratories”, in accordance with the A2LA Testing Certificate # 

2052.01. Testing that complies with this International Standard also meets principles of ISO 9001:2000. 
This page has been reserved for specific country requirements. 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 2 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012 

GLP COMPLIANCE STATEMENT 

Report Title: GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater 

Samples Collected at Off-Site Wells in Decatur, AL in March/April 2012. 

Study: Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and 

Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 

Site-Related Monitoring Program. 

This analytical phase was conducted in compliance with Toxic Substances Control Act (TSCA) Good 

Laboratory Practice (GLP) Standards, 40 CFR 792, with the exceptions listed below: 

• These are environmental samples where there is no specific test substance, no specific test 

system and no dosing of a test system. 

• The reference substances have not been characterized under the GLPs and the stability under 

storage conditions at the test site have not been determined under GLPs. 

Gary Hohenstein, fiponsor Representative Date 

Jaisimha Kesari, P.E., DEE, Study Director / ' Date 

Page 3 of 148 
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS In Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012 

QUALITY ASSURANCE STATEMENT 

Report Title: GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater 

Samples Collected at Off-Site Wells in Decatur, AL in March/April 2012. 

Study: Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and 

Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 

Site-Related Monitoring Program. 

This analytical phase was audited by the 3M Environmental Laboratory Quality Assurance Unit (QAU), 

as indicated in the following table. The findings were reported to the principal investigator (P.I.), 

laboratory management and study director. 

Date Reported to 

Inspection Dates Phase Testing Facility Study Director 

lUlanagement 

Study Director 

4/30/12 Data and Report 5/4/12 5/4/12 

d 

QAU Representative Date 

Page 4 of 148 
TABLE OF CONTENTS 

GLP Compliance Statement...................................................................................................................... 3

Quality Assurance Statement.................................................................................................................... 4

Table of Contents....................................................................................................................................... 5

List of Tables .............................................................................................................................................. 6

1 Study Information................................................................................................................................ 8

2 Summary ............................................................................................................................................. 9

3 Introduction........................................................................................................................................11

4 Test & Control Substances ..............................................................................................................11

5 Reference Substances .....................................................................................................................12

6 Test System ......................................................................................................................................13

7 Method Summary .............................................................................................................................14

7.1 Methods ............................................................................................................................14

7.2 Sample Collection.............................................................................................................14

7.3 Sample Preparation..........................................................................................................14

7.4 Analysis.............................................................................................................................14

8 Analytical Results..............................................................................................................................15

8.1 Calibration .........................................................................................................................15

8.2 System Suitability .............................................................................................................16

8.3 Limit of Quantitation (LOQ)..............................................................................................16

8.4 Continuing Calibration ......................................................................................................16

8.5 Blanks................................................................................................................................16

8.6 Lab Control Spikes (LCSs) ..............................................................................................16

8.7 Analytical Method Uncertainty .........................................................................................20

8.9 Field Matrix Spikes (FMS)................................................................................................20

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 5 of 148
9 Data Summary and Discussion .......................................................................................................21

10 Conclusion.........................................................................................................................................34

11 Data/Sample Retention ....................................................................................................................34

12 Attachments ......................................................................................................................................34

13 Signatures .........................................................................................................................................35

LIST OF TABLES

Table 1. Summarized PFBS, PFHS, and PFOS Results (Off-Site Wells, March/April 2012)........ 10

Table 2. Sample Description Key Code............................................................................................ 13

Table 3. Instrument Parameters........................................................................................................ 14

Table 4. Liquid Chromatography Conditions. ................................................................................... 15

Table 5. Mass Transitions.................................................................................................................. 15

Table 6. Limit of Quantitation (LOQ). ................................................................................................ 16

Table 7. Laboratory Control Spike Recovery.................................................................................... 18

Table 8. Analytical Uncertainty. ......................................................................................................... 20

Table 9. Field Matrix Spike Levels. ................................................................................................... 20

Table 10. DAL GW 602S 120330 ...................................................................................................... 22

Table 11. DAL GW 602L 120330....................................................................................................... 22

Table 12. DAL GW 603S 120330 ...................................................................................................... 23

Table 13. DAL GW 603L 120330....................................................................................................... 23

Table 14. DAL GW 604R 120330 ...................................................................................................... 24

Table 15. DAL GW 604S 120330 ...................................................................................................... 24

Table 16. DAL GW 604L 120403....................................................................................................... 25

Table 17. DAL GW 605R 120404 ...................................................................................................... 25

Table 18. DAL GW 605L 120404....................................................................................................... 26

Table 19. DAL GW 607R 120403 ...................................................................................................... 26

Table 20. DAL GW 607L 120403....................................................................................................... 27

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 6 of 148
Table 21. DAL GW 609R 120330 ...................................................................................................... 27

Table 22. DAL GW 609L 120330....................................................................................................... 28

Table 23. DAL GW 610R 120404 ...................................................................................................... 28

Table 24. DAL GW 610L 120404....................................................................................................... 29

Table 25. DAL GW 611R 120404 ...................................................................................................... 29

Table 26. DAL GW 611L 120404....................................................................................................... 30

Table 27. DAL GW MW121 120405.................................................................................................. 30

Table 28. DAL GW MW47 120405 .................................................................................................... 31

Table 29. DAL GW MW13S 120404.................................................................................................. 31

Table 30. DAL GW MW13I 120404 ................................................................................................... 32

Table 31. DAL GW MW13B 120404.................................................................................................. 32

Table 32. Rinseate Blanks.................................................................................................................. 33

Table 33. Trip Blank ............................................................................................................................ 33

 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 7 of 148
1 Study Information

Sponsor

3M Company

Sponsor Representative

Gary Hohenstein

3M EHS Operations

3M Building 224-5W-03

Saint Paul, MN 55144-1000

Phone: (651) 737-3570

Study Director

Jaisimha Kesari, P.E., DEE

Weston Solutions, Inc.

West Chester, PA 19380

Phone: (610) 701-3761

Fax: (610) 701-7401

j.kesari@westonsolutions.com

Study Location

Testing Facility

3M EHS Operations

3M Environmental Laboratory

Building 260-5N-17

St. Paul, MN 55144

Study Personnel

William K. Reagen, Ph.D., 3M Laboratory Manager

Cleston Lange, Ph.D., Principal Analytical Investigator, (clange@mmm.com); phone (651)-733-9860

Susan Wolf, 3M Analyst

Chelsie Grochow, Analyst

Kevin Eich, Analyst

Kelly Ukes, Analyst

Study Dates

Study Initiation: March 8, 2010

Interim 29 Experimental Termination: April 26, 2012

Interim Report Completion: Date of Interim Report Signing

Location of Archives

All original raw data and the analytical report have been archived at the 3M Environmental 

Laboratory according to 40 CFR Part 792. The test substance and analytical reference standard 

reserve samples are archived at the 3M Environmental Laboratory according to 40 CFR Part 792

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 8 of 148
2 Summary

The 3M Environmental Laboratory prepared sample containers for twenty-four existing off-site wells in 

Decatur, AL. Samples were collected March 30, 2010 – April 5, 2012. Of the seventy-six sample 

containers prepared, seventy groundwater sample bottles were received at the 3M Environmental 

Laboratory for perfluorobutane sulfonate (PFBS), perfluorohexane sulfonate (PFHS), and 

perfluorooctane sulfonate (PFOS) analysis from Weston personnel on April 9, 2012. Sampling 

locations DAL GW 602R and DAL GW 603R were not sampled. All samples were logged into the 

laboratory information management system (LIMS) under project GLP10-01-02-29.

For each sampling location, a field sample, field duplicate sample and field matrix spike (FMS) sample 

were collected. Samples also included a trip blank containing Milli-QTM water and an appropriate trip 

blank spike. Two equipment rinseate blanks were also collected. The equipment rinseate blanks did 

not have FMS samples prepared for determination of recovery. All sample bottles were fortified with 

internal standard 13C8-PFOS and surrogate recovery standard 13C4-PFOS prior to sample collection. 

All of the samples were prepared and analyzed for PFBS, PFHS, PFOS and the surrogate recovery 

standard 13C4-PFOS, following 3M Environmental Laboratory Method ETS-8-044.1. Where applicable, 

samples were analyzed against an internal standard calibration curve. 

The average measured PFBS, PFHS, and PFOS concentrations are summarized in Table 1. The trip 

blank and equipment blanks were below the lower limit of quantitation (LLOQ) for all analytes, 

indicating adequate control of sample contamination during shipping and sample collections. The 

analytical method uncertainties for samples analyzed by internal calibration are: PFBS + 13%, PFHS +

14% and PFOS + 18%. Due to a sample container preparation error, the internal standard was 

inadvertently not added to the field sample duplicate and FMS sample bottles for location DAL GW 

602S. As a result, this sampling location was analyzed by external calibration with analytical method 

uncertainties estimated at: PFBS + 15%, PFHS + 13% and PFOS + 38%. 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 9 of 148
Table 1. Summarized PFBS, PFHS, and PFOS Results (Off-Site Wells, March/April 2012) (1)

PFBS PFHS PFOS

Sampling Location Avg. Conc. 

(ng/mL) ± RPD

Avg. Conc. 

(ng/mL) ± RPD

Avg. Conc. 

(ng/mL) ± RPD

DAL GW 602S 120330 0.288 ± 0.35% (2) 0.182 ± 2.8% (2) 0.468 ± 9.6% (2)

DAL GW 602L 120330 0.0699 ± 6.3% 0.252 ± 7.1% 0.544 ± 13%

DAL GW 603S 120330 0.177 ± 6.8% 0.119 ± 20% 0.417 ± 12%

DAL GW 603L 120330 0.0946 ± 6.7% 0.108 ± 5.6% 0.0905 ± 3.9%

DAL GW 604R 120330 0.310 ± 2.3% 0.184 ± 10% 1.12 ± 8.9%

DAL GW 604S 120330 0.340 ± 1.2% 0.229 ± 4.4% 0.478 ± 0.63%

DAL GW 604L 120403 0.449 ± 6.5% 0.227 ± 6.2% 0.811 ± 5.4%

DAL GW 605R 120404 0.134 ± 17% 0.115 ± 7.0% 0.0532 ± 29% (3)

DAL GW 605L 120404 0.0988 ± 19% 0.203 ± 8.9% 0.213 ± 16%

DAL GW 607R 120403 0.187 ± 15% 0.192 ± 8.3% 0.274 ± 0.37%

DAL GW 607L 120403 0.180 ± 14% 0.220 ± 6.4% 0.322 ± 12%

DAL GW 609R 120330 0.433 ± 0.69% 0.0947 ± 2.2% 0.162 ± 9.3%

DAL GW 609L 120330 0.348 ± 15% 0.169 ± 33% (3) 0.569 ± 2.6%

DAL GW 610R 120404 0.0543 ± 0.74% 0.0756 ± 8.2% 0.275 ± 4.4%

DAL GW 610L 120404 0.131 ± 2.3% 0.136 ± 5.2% 0.646 ± 0.62%

DAL GW 611R 120404 0.295 ± 1.7% 0.128 ± 5.5% 0.650 ± 2.5%

DAL GW 611L 120404 0.261 ± 6.9% 0.140 ± 1.4% 0.458 ± 6.3%

DAL GW MW121 120405 <0.0250 <0.0250 0.0307(4)

DAL GW MW47 120405 0.174 ± 1.1% 0.113 ± 17% 0.166 ± 14%

DAL GW MW13S 120404 0.0831 ± 3.9% 0.0404 ± 5.4% <0.0232

DAL GW MW13I 120404 0.0682 ± 2.5% 0.0457 ± 0.0% <0.0232

DAL GW MW13B 120404 0.0803 ± 2.7% 0.0521 ± 5.0% 0.0376 ± 49% (3)

Trip Blanks (Milli-QTM Water) <0.0250 <0.0250 <0.0232

GLP10-01-01-30 Equipment rinseate

blanks: 

DAL GW 604L and DAL GW 607R <0.0250 <0.0250 <0.0232

Locations DAL GW 602R and DAL GW 603R were not sampled.

(1) All samples were analyzed using internal calibration unless otherwise noted. The analytical method 

uncertainties associated with the reported results using internal calibration are: PFBS ± 13%, PFHS ± 14%, 

and PFOS ± 18%.

(2) Samples for location DAL GW 602S were analyzed using external calibration. The analytical method 

uncertainties associated with the reported results using external calibration are: PFBS ± 15%, PFHS ± 13%, 

and PFOS ± 38%.

(3) Sample/sample duplicate RPD did not meet acceptance criteria of ≤20%. 

(4) A sample/sample duplicate RPD could not be determined due to the primary sample being not reportable. 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 10 of 148
3 Introduction 

This analytical study was conducted as part of the Phase 3 Environmental Monitoring and Assessment 

Program for the 3M facility located in Decatur, Alabama. The objective of the overall program is to gain 

information regarding concentrations of perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate 

(PFHS) and perfluorobutane sulfonate (PFBS), in various environmental media such as groundwater, 

soils and sediments that are associated with and near the Decatur facility. This analytical study was 

conducted to analyze ground water samples collected from twenty-two locations at off-site wells in 

Decatur, AL for PFBS, PFHS, and PFOS in an effort to characterize regional groundwater conditions. 

The 3M Environmental Laboratory prepared sample containers (250 mL high-density polyethylene 

bottles) which were shipped to Decatur, AL Weston personnel prior to field sampling. Sample 

containers for each sampling location included a field sample, field sample duplicate, and one field 

matrix spike sample. Each empty container was marked with a “fill to here” line to produce a final 

sample volume of 200 mL. Containers designated for field matrix samples were fortified with an 

appropriate matrix spike solution containing PFBS (linear isomer), PFHS (linear isomer), and PFOS 

(linear and branched isomers) prior to being sent to the field for sample collection. All sample bottles 

included the addition of 18O2-PFBS, 13C3-PFHS, and 13C8-PFOS (internal standard) at a nominal 

concentration of 1 ng/mL. All sample bottles also included the addition of 13C4-PFOS (surrogate 

recovery standard) at a nominal concentration of 0.1 ng/mL. See section 8.8 of the report for field 

matrix spike levels.

Samples were prepared and analyzed according to the procedure defined in 3M Environmental 

Laboratory method ETS-8-044.1 “Method of Analysis for the Determination of Perfluorinated 

Compounds In Water by LC/MS/MS; Direct Injection Analysis”. The use of internal standards was 

used to aid in the data quality objectives. 

Table 1 summarizes the average PFBS, PFHS, and PFOS concentrations for the duplicate surface 

water samples collected and the trip blank sample. Tables 10-33 summarize the individual sample 

results and the associated field matrix spike recoveries. All results for the quality control samples 

prepared and analyzed with the samples are reported and discussed elsewhere in this report 

4 Test & Control Substances

There was not a test substance or control substances in the classic sense of a GLP study. This study 

was purely analytical in nature.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 11 of 148
5 Reference Substances

The analytical reference substances used for this study are listed below.

Reference Substance

PFBS 

(predominantly linear)

18O2-PFBS

Chemical Name Potassium 

Perfluorobutane sulfonate

[

18O2]-Ammonium 

Perfluorobutanesulfonate

Chemical Formula C4F9SO3

-

K+ C4F9S[18O2]O-NH4

+

Identifier NA NA 

Use Target Analyte Reference 

Standard Internal Standard

Source 3M RTI International

Expiration Date 01/10/2017 03/09/2015

Storage Conditions Frozen Frozen

Chemical Lot Number 41-2600-8442-5 11546-107-2 

TCR Number TCR-121 TCR-1044, TCR-1040

Physical Description White Powder Liquid

Purity 96.7% >99%

Reference Substance

PFHS 

(Linear)

13C3- PFHS

Chemical Name Sodium Perfluorohexane 

sulfonate

Sodium 

Perfluorohexanesulfonate

Chemical Formula C6F13SO3

-

Na+ 13C3

12C3F13SO3-

Na+

Identifier L-PFHXS MPFC-C-0112

Use Target Analyte Reference 

Standard Internal Standard

Source Wellington Wellington

Expiration Date 03/25/2018 01/24/2015

Storage Conditions Frozen Frozen

Chemical Lot Number LPFHxSAM08 MPFC-C-0112

TCR Number TCR08-0018 TCR12-0004

Physical Description Crystalline Liquid

Purity 100% NA (1)

(1) Compound is part of a custom mixture of mass-labeled perfluorinated compounds at a concentration of 5.0 μg/mL.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 12 of 148
Reference 

Substance

PFOS

(Linear + Branched)

PFOS

(Linear + Branched)

13C4-PFOS 13C8-PFOS

Chemical Name

Potassium 

Perfluorooctane 

sulfonate

Potassium 

Perfluorooctane 

sulfonate

Sodium 

Perfluorooctane

sulfonate

Sodium 

Perfluorooctane

sulfonate

Chemical Formula C8F17SO3

-

K+ C8F17SO3

-

K+ 13C4

12C4F17SO3-

Na+ 13C8F17SO3

-

Na+

Identifier Br-PFOSK CAS # 2795-39-3 MPFOS MPFC-C-0112

Use Target Analyte 

Reference Standard

FMS Reference 

Standard

Surrogate Recovery 

Standard Internal Standard

Source Wellington Sigma Aldrich Wellington Wellington

Expiration Date 03/17/2014; 

12/01/2014 02/04/2014 09/08/2013 01/24/2015

Storage Conditions Frozen Ambient Frozen Frozen

Chemical Lot Number brPFOSK0708; 

brPFOSK1111 1424328V MPFOS0910 MPFC-C-0112

TCR Number TCR11-0010; 

TCR11-0041 TCR11-0028 TCR10-0044 TCR12-0004

Physical Description Liquid White Powder Liquid Liquid

Purity 99.9% 99.7% >98% NA (1)

(1) Compound is part of a custom mixture of mass-labeled perfluorinated compounds at a concentration of 5.0 μg/mL.

6 Test System

The test systems for this study are groundwater samples collected from wells located in Decatur, AL by 

Weston Solutions, Inc. personnel. Samples for this study are “real world” samples, not dosed with a 

specific lot of test substance.

Table 2. Sample Description Key Code.

String Number String Descriptor Example

Example DAL-GW-602S-0-120330

1 Sample Location DAL= Decatur, Alabama

2 Sample Type GW= Ground Water

3 Well Identifier Example: 602S

4 Well Level R = Residuum shallow water-bearing zone 

L = Bedrock water-bearing zone

S = Epikarst middle water-bearing zone

5 Sample Type 120330– March 30, 2012

6 Sampling Date 0=primary sample 

DB=duplicate sample

FMS = Field Matrix Spike

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 13 of 148
7 Method Summary

7.1 Method

Analysis for all analytes was completed following 3M Environmental Laboratory method ETS-8-044.1 

“Method of Analysis for the Determination of Perfluorinated Compounds In Water by High Performance 

Liquid Chromatography/Mass Spectrometry Direct Injection Analysis”. 

7.2 Sample Collection

Samples were collected in 250 mL NalgeneTM (high-density polyethylene) bottles prepared at the 3M 

Environmental Laboratory. Sample bottles associated with GLP10-01-02-29 were returned to the 

laboratory at ambient conditions on April 9, 2012. Samples were stored refrigerated at the laboratory 

after receipt. A set of laboratory prepared Trip Blank and Trip Blank field matrix spikes were sent with 

the sample collection bottles.

7.3 Sample Preparation

Samples were prepared by removing an aliquot of the well mixed sample and placing it in an autovial for 

analysis. 

During the preparation of the laboratory control samples, an aliquot of a separate internal standard 

spiking solution was added to the laboratory control samples (nominal concentration of 1 ng/mL). The 

samples bottles were spiked with an internal standard mix at a nominal concentration of 1 ng/mL prior to 

being sent to the field for sample collection

7.4 Analysis

All study samples and quality control samples were analyzed for PFBS, PFHS, and PFOS using high 

performance liquid chromatography/ tandem mass spectrometry (HPLC/MS/MS). Detailed instrument 

parameters, the liquid chromatography gradient program, and the specific mass transitions analyzed are 

described in the raw data hard copies placed in the final data packet, and are briefly described below in 

Table 3, Table 4 and Table 5. 

Table 3. Instrument Parameters. 

Instrument Name ETS Buster

Analytical Method Followed ETS-8-044.1

Analysis Date 4/23/12

Liquid Chromatograph Agilent 1100

Guard column Betasil C18 (4.6 mm X 100 mm), 5μ

Analytical column Betasil C18 (4.6 mm X 100 mm), 5μ

Injection Volume 50 μL

Mass Spectrometer Applied Biosystems API 4000

Ion Source Turbo Spray

Electrode Turbo ion electrode

Polarity Negative

Software Analyst 1.4.2

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 14 of 148
Table 4. Liquid Chromatography Conditions.

Step 

Number

Total Time 

(min)

Flow Rate 

(μL/min)

Percent A

(2 mM ammonium acetate)

Percent B

(methanol)

ETS-8-044.1

0 0.0 750 97.0 3.0

1 2.0 750 97.0 3.0

2 14.5 750 5.0 95.0

3 15.5 750 5.0 95.0

4 16.5 750 97.0 3.0

5 20.0 750 97.0 3.0

Table 5. Mass Transitions. 

Analyte

Mass Transition

Q1/Q3

Reference 

Material 

Structure

Internal Standard 

Mass Transition

Q1/Q3

PFBS

299/80

Linear [

18O2]-PFBS 303/84

299/99

PFHS

399/80

Linear [

13C3]-PFHS 402/99

399/99

PFOS

499/80

Linear + 

Branched [

13 499/99 C8]-PFOS 507/80

499/130

[

13C4]-PFOS 503/80 Linear [13C8]-PFOS 507/80

Dwell time was 50 msec for each transition. The individual transitions were summed to produce a “total ion 

chromatogram” (TIC), which was used for quantitation. 

8 Analytical Results

8.1 Calibration

8.1.1 Internal standard calibration:

Samples were analyzed using a stable isotope internal standard calibration curve. Calibration 

standards were prepared by spiking known amounts of the stock solution containing the target analytes

into laboratory-prepared synthetic groundwater containing calcium and magnesium. A separate 

internal standard spiking solution was prepared and an aliquot was added at the same level to all 

calibration standards and laboratory control samples at a nominal concentration of 1 ng/mL. A 

calibration curve ranging from approximately 0.025 ng/mL to 25 ng/mL (0.025 ng/mL to 10 ng/mL for 13C4-PFOS surrogate) was prepared. A quadratic, 1/x weighted, calibration curve of the standard peak 

area/peak area ratios was used to fit the data for each analyte. The data were not forced through zero 

during the fitting process. Calculating the standard concentrations using the peak area ratios and the 

resultant calibration curve confirmed accuracy of each curve point. The PFOS reference standard 

used to prepare the calibration standards consisted of both linear and branched isomers.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 15 of 148
8.1.2 External standard calibration for sampling location DAL GW 602S:

See 8.1.1 for the preparation of the calibration curve. For external standard calibration, a quadratic, 1/x 

weighted, calibration curve was used to fit the data for each analyte. The data were not forced through 

zero during the fitting process. Calculating the standard concentration using the peak area counts and 

the resultant calibration curve confirmed accuracy of each curve point. 

For both internal standard and external standard calibration, each curve point was quantitated using the 

overall calibration curve and reviewed for accuracy. Method calibration accuracy requirements of 

100±25% (100±30% for the lowest curve point) were met for all analytes. The correlation coefficient (r)

was greater than 0.995 for PFBS, PFHS, PFOS,and 13C4-PFOS.

8.2 System Suitability

A calibration standard was analyzed four times at the beginning of each analytical sequence to 

demonstrate overall system suitability. The acceptance criteria of less than or equal to 5% relative 

standard deviation (RSD) for peak area and retention time criteria of less than or equal to 2% RSD was 

met for PFBS, PFHS, PFOS, and 13C4-PFOS.

8.3 Limit of Quantitation (LOQ)

The LOQ for this analysis is the lowest non-zero calibration standard in the curve that meets linearity 

and accuracy requirements and for which the area counts or area ratio are at least twice those of the 

appropriate blanks. The LOQ for all analytes can be found in Table 6.

Table 6. Limit of Quantitation (LOQ).

Analysis Date PFBS

LOQ, ng/mL

PFHS

LOQ, ng/mL

PFOS

LOQ, ng/mL

4/23/12 (1) 0.0250 0.0250 0.0232

(1) Internal and external calibration analysis.

8.4 Continuing Calibration 

During the course of each analytical sequence, continuing calibration verification samples (CCVs) were 

analyzed to confirm that the instrument response and the initial calibration curve were still in control. All 

CCVs met method criteria of 100% ± 25% for all analytes except for a CCV for 13C4-PFOS using 

external calibraiton, which had a recovery of 71.8%. Samples bracketed by this CCV included the LCS 

samples and results for sampling location DAL GW 602S. A method deviation is included in Attachment 

D. 

8.5 Blanks

Three types of blanks were prepared and analyzed with the samples: procedural blanks, trip blanks, and 

equipment rinseate blanks. Procedural blank results were reviewed and used to evaluate method 

performance and to determine the LOQ. Trip blanks reflect the shipping and sample collection 

conditons the sample bottles and samples experience. Equipment rinseate blanks are aqueous 

samples that reflect the efficiency of equipment cleaning in the field between different sample collections 

to ensure no cross contamination of samples from the equipment.

8.6 Lab Control Spikes (LCSs) 

Low, mid, and high lab control spikes were prepared for the target analytes and analyzed in triplicate, 

while only low and high lab control spikes were prepared for the 13C4-PFOS surrogate. LCSs were 

prepared by spiking known amounts of the analyte into synthetic groundwater to produce the desired 

concentration. The spiked water samples were then prepared and analyzed in the same manner as the 

samples. The method acceptance criteria, average of LCS at each level should be within 100% ± 20% 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

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Page 16 of 148
with an RSD ≤20%, was met for all analytes except for the mid level LCSs for PFOS and 13C4-PFOS

using external standard calibration, which had a average recovery of 122% for both PFOS and 13C4-

PFOS. All LCS samples were used in the determination of the analytical method uncertainty in section 

8.7. A method deviation is included in Attachment D.

The following calculations were used to generate data in Table 7 for laboratory control spikes.

* 100%

Spike Concentration

Calculated Concentration LCSPercent Recovery =

 

* 100%

average LCS recovery

standard deviation LCS replicates LCS% RSD =

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

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Page 17 of 148
Table 7. Laboratory Control Spike Recovery. 

ETS-8-044.1

Analyzed 4/23/12

Internal Standard 

Calibration PFBS PFHS

Lab ID

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

LCS-120416-1 0.198 0.203 102 0.198 0.201 102

LCS-120416-2 0.198 0.216 109 0.198 0.210 106

LCS-120416-3 0.198 0.222 112 0.198 0.215 108

Average ± %RSD 108% ± 4.8% 105% ± 2.9%

LCS-120416-4 1.98 2.13 108 1.98 2.10 106

LCS-120416-5 1.98 2.16 109 1.98 2.30 116

LCS-120416-6 1.98 2.10 106 1.98 2.21 112

Average ± %RSD 108% ± 1.4% 111% ± 4.5%

LCS-120416-7 9.94 9.83 98.9 9.92 10.0 101

LCS-120416-8 9.94 9.58 96.4 9.92 9.16 92.3

LCS-120416-9 9.94 9.41 94.7 9.92 9.39 94.7

Average ± %RSD 96.7% ± 2.2% 96.0% ± 4.7%

ETS-8-044.1

Analyzed 4/23/12

Internal Standard 

Calibration PFOS (Linear + Branched) 13C4-PFOS surrogate

Lab ID

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

LCS-120416-1 0.184 0.179 97.3 0.189 0.202 107

LCS-120416-2 0.184 0.198 107 0.189 0.199 105

LCS-120416-3 0.184 0.199 108 0.189 0.193 102

Average ± %RSD 104% ± 5.7% 105% ± 2.4%

LCS-120416-4 1.84 1.84 99.8 1.89 1.91 101

LCS-120416-5 1.84 1.91 104 1.89 1.99 105

LCS-120416-6 1.84 1.95 106 1.89 2.01 106

Average ± %RSD 103% ± 3.1% 104% ± 2.5%

LCS-120416-7 9.22 9.16 99.3 NA NA NA

LCS-120416-8 9.22 8.78 95.3 NA NA NA

LCS-120416-9 9.22 8.59 93.2 NA NA NA

Average ± %RSD 95.9% ± 3.2% NA

NA = Not Applicable

(1) LCS did not meet acceptance criteria of 100 ± 20%.

GLP10-01-02; Interim Report 29 

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Page 18 of 148
Table 7 Continued. Laboratory Control Spike Recovery. 

ETS-8-044.1

Analyzed 4/23/12

External Standard 

Calibration PFBS PFHS

Lab ID

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

LCS-120416-1 0.198 0.184 92.7 0.198 0.188 94.8

LCS-120416-2 0.198 0.190 96.1 0.198 0.203 102

LCS-120416-3 0.198 0.196 98.9 0.198 0.203 102

Average ± %RSD 95.9% ± 3.2% 99.6% ± 4.2%

LCS-120416-4 1.98 1.91 96.2 1.98 2.06 104

LCS-120416-5 1.98 1.88 95.0 1.98 2.04 103

LCS-120416-6 1.98 1.92 97.1 1.98 2.04 103

Average ± %RSD 96.1% ± 1.1% 103% ± 0.56%

LCS-120416-7 9.94 8.77 88.2 9.92 8.98 90.6

LCS-120416-8 9.94 8.25 83.0 9.92 8.68 87.5

LCS-120416-9 9.94 8.02 80.7 9.92 8.83 89.0

Average ± %RSD 84.0% ± 4.6% 89.0% ± 1.7%

ETS-8-044.1

Analyzed 4/23/12

External Standard 

Calibration PFOS (Linear + Branched) 13C4-PFOS surrogate

Lab ID

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

Spiked 

Concentration 

(ng/mL)

Calculated 

Concentration 

(ng/mL) %Recovery

LCS-120416-1 0.184 0.224 122 0.189 0.256 135

LCS-120416-2 0.184 0.200 109 0.189 0.205 108

LCS-120416-3 0.184 0.178 96.5 0.189 0.175 92.7

Average ± %RSD 109% ± 12% 112% ± 19%

LCS-120416-4 1.84 2.55 139 1.89 2.65 140

LCS-120416-5 1.84 2.03 110 1.89 2.07 110

LCS-120416-6 1.84 2.14 116 1.89 2.17 115

Average ± %RSD 122% ± 13% (1) 122% ± 13% (1)

LCS-120416-7 9.22 11.8 128 NA NA NA

LCS-120416-8 9.22 9.40 102 NA NA NA

LCS-120416-9 9.22 10.9 118 NA NA NA

Average ± %RSD 116% ± 11% NA

NA = Not Applicable

(1) LCS did not meet acceptance criteria of 100 ± 20%.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 19 of 148
8.7 Analytical Method Uncertainty

Analytical method uncertainty is based on historical QC data that is control charted and used to 

evaluate method accuracy and precision. The method uncertainty is calculated following ETS-12-

012.2. The standard deviation is calculated for the set of accuracy results (in %) obtained for the QC 

samples. The expanded uncertainty is calculated by multiplying the standard deviation by a factor of 2, 

which corresponds to a confidence level of 95%. While the mid set of LCS samples for PFOS by 

external standard calibration had a recovery of 122%, this value was within the analytical method 

uncertainty for PFOS by external standard calibration as determined by ETS-12-012.2.

 

Table 8. Analytical Uncertainty.

Analyte Calibration Standard Deviation Method Uncertainty

PFBS Internal 6.42 ±13%

PFHS Internal 7.00 ±14%

PFOS Internal 9.10 ±18%

PFBS External 7.59 ±15%

PFHS External 6.60 ±13%

PFOS External 18.8 ±38%

8.8 Field Matrix Spikes (FMS)

Low, mid, and high field matrix spikes (FMS) were collected at each sampling point to verify that the 

analytical method is applicable to the collected matrix. Field matrix spikes were generated by adding a 

measured volume of field sample to a container spiked by the laboratory with PFBS (linear), PFHS 

(linear), and PFOS (linear + branched) prior to shipping sample containers for sample collection. Field 

matrix spike recoveries within method acceptance criteria of 100±30% confirm that “unknown” 

components in the sample matrix do not significantly interfere with the extraction and analysis of the 

analytes of interest. Field matrix spike concentrations must be 50% of the sample concentration to be 

considered an appropriate field spike. Field matrix spikes are presented in section 9 of this report. 

Table 9. Field Matrix Spike Levels.

Sampling Location PFBS, 

ng/mL

PFHS, 

ng/mL

PFOS, 

ng/mL

602S, 603S, 603L, 604R, 604S, 604L, 

605R, 605L, 607R, 607L, 609R, 610R, 

611R, 611L, MW121, MW47, MW13S, 

MW13I, and MW13B, Trip Blank

1.01 0.998 0.998

602L, 609L, and 610L 2.01 2.00 2.00

*100%

 Spike Concentraton

 ( Sample Concentration of FMS Average Concentration Field: Sample Field & Sample Dup.) FMS Recovery − =

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

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Page 20 of 148
9 Data Summary and Discussion

The tables below summarize the sample results and field matrix spike recoveries for the sampling 

locations as well as the Trip Blank. Results and average values are rounded to three significant figures 

according to EPA rounding rules. Because of rounding, values may vary slightly from those listed in the 

raw data. Field matrix spike recoveries meeting the method acceptance criteria of ± 30%, demonstrate 

that the method was appropriate for the given matrix and their respective quantitative ranges. 

DAL GW MW121 120405; When quantitated by internal standard calibration, the calculated 

concentration for the primary sample, based on the analyte/IS area ratio, was within the calibration 

range. However the actual peak area counts for the primary sample for PFOS were less than the peak 

area counts for the PFOS LOQ standard. Therefore, a sample result for PFOS will not be reported for 

the primary sample.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 21 of 148
Table 10. DAL GW 602S 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-004 DAL-GW-602S-0-120330 0.287 NA 0.179 NA 0.490 NA 116

GLP10-01-02-29-005 DAL-GW-602S-DB-120330 0.288 NA 0.184 NA 0.445 NA 102

GLP10-01-02-29-006 DAL-GW-602S-FMS-120330 1.20 90.3 1.14 96.0 1.32 85.4 93.4

Average Concentration (ng/mL) ± %RPD/RSD 0.288 ng/mL ± 0.35% 0.182 ng/mL ± 2.8% 0.468 ng/mL ± 9.6% 104% ± 11%

NA = Not Applicable

All samples were quantitated by external standard calibration.

Table 11. DAL GW 602L 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-007 DAL-GW-602L-0-120330 0.0721 NA 0.261 NA 0.579 NA 94.5

GLP10-01-02-29-008 DAL-GW-602L-DB-120330 0.0677 NA 0.243 NA 0.508 NA 84.9

GLP10-01-02-29-009 DAL-GW-602L-FMS-120330 1.94 93.0 2.36 105 2.63 104 97.7

Average Concentration (ng/mL) ± %RPD/RSD 0.0699 ng/mL ± 6.3% 0.252 ng/mL ± 7.1% 0.544 ng/mL ± 13% 92.4% ± 7.2%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

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Page 22 of 148
Table 12. DAL GW 603S 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-013 DAL-GW-603S-0-120330 0.183 NA 0.131 NA 0.443 NA 110

GLP10-01-02-29-014 DAL-GW-603S-DB-120330 0.171 NA 0.107 NA 0.391 NA 115

GLP10-01-02-29-015 DAL-GW-603S-FMS-120330 1.36 117 1.33 121 1.56 115 104

Average Concentration (ng/mL) ± %RPD/RSD 0.177 ng/mL ± 6.8% 0.119 ng/mL ± 20% 0.417 ng/mL ± 12% 110% ± 5.2%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 13. DAL GW 603L 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-016 DAL-GW-603L-0-120330 0.0977 NA 0.105 NA 0.0922 NA 96.5

GLP10-01-02-29-017 DAL-GW-603L-DB-120330 0.0914 NA 0.111 NA 0.0887 NA 102

GLP10-01-02-29-018 DAL-GW-603L-FMS-120330 0.955 85.2 1.01 90.4 0.962 87.3 85.9

Average Concentration (ng/mL) ± %RPD/RSD 0.0946 ng/mL ± 6.7% 0.108 ng/mL ± 5.6% 0.0905 ng/mL ± 3.9% 94.7% ± 8.6%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 23 of 148
Table 14. DAL GW 604R 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-019 DAL-GW-604R-0-120330 0.306 NA 0.193 NA 1.17 NA 101

GLP10-01-02-29-020 DAL-GW-604R-DB-120330 0.313 NA 0.174 NA 1.07 NA 103

GLP10-01-02-29-021 DAL-GW-604R-FMS-120330 1.360 104 1.28 110 2.16 104 106

Average Concentration (ng/mL) ± %RPD/RSD 0.310 ng/mL ± 2.3% 0.184 ng/mL ± 10% 1.12 ng/mL ± 8.9% 103% ± 2.1%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 15. DAL GW 604S 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-022 DAL-GW-604S-0-120330 0.338 NA 0.224 NA 0.476 NA 96.0

GLP10-01-02-29-023 DAL-GW-604S-DB-120330 0.342 NA 0.234 NA 0.479 NA 103

GLP10-01-02-29-024 DAL-GW-604S-FMS-120330 1.40 105 1.28 105 1.56 108 104

Average Concentration (ng/mL) ± %RPD/RSD 0.340 ng/mL ± 1.2% 0.229 ng/mL ± 4.4% 0.478 ng/mL ± 0.63% 101% ± 4.2%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 24 of 148
Table 16. DAL GW 604L 120403

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-025 DAL-GW-604L-0-120403 0.434 NA 0.234 NA 0.833 NA 102

GLP10-01-02-29-026 DAL-GW-604L-DB-120403 0.463 NA 0.220 NA 0.789 NA 103

GLP10-01-02-29-027 DAL-GW-604L-FMS-120403 1.47 101 1.29 107 1.95 114 99.9

Average Concentration (ng/mL) ± %RPD/RSD 0.449 ng/mL ± 6.5% 0.227 ng/mL ± 6.2% 0.811 ng/mL ± 5.4% 102% ± 1.5%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 17. DAL GW 605R 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-028 DAL-GW-605R-0-120404 0.145 NA 0.119 NA 0.0608 NA 84.6

GLP10-01-02-29-029 DAL-GW-605R-DB-120404 0.122 NA 0.111 NA 0.0456 NA 95.0

GLP10-01-02-29-030 DAL-GW-605R-FMS-120404 0.951 80.9 0.984 87.1 0.930 87.9 86.8

Average Concentration (ng/mL) ± %RPD/RSD 0.134 ng/mL ± 17% 0.115 ng/mL ± 7.0% 0.0532 ng/mL ± 29% (1) 88.8% ± 6.1%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

(1) Sample/sample duplicate RPD did not meet acceptance criteria ≤20%.

GLP10-01-02; Interim Report 29 

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Off-Site Wells in Decatur, AL - March/April 2012

Page 25 of 148
Table 18. DAL GW 605L 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-031 DAL-GW-605L-0-120404 0.108 NA 0.212 NA 0.230 NA 98.7

GLP10-01-02-29-032 DAL-GW-605L-DB-120404 0.0896 NA 0.194 NA 0.195 NA 88.0

GLP10-01-02-29-033 DAL-GW-605L-FMS-120404 1.19 108 1.26 106 1.23 102 101

Average Concentration (ng/mL) ± %RPD/RSD 0.0988 ng/mL ± 19% 0.203 ng/mL ± 8.9% 0.213 ng/mL ± 16% 95.9% ± 7.3%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 19. DAL GW 607R 120403

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-034 DAL-GW-607R-0-120403 0.201 NA 0.200 NA 0.274 NA 96.0

GLP10-01-02-29-035 DAL-GW-607R-DB-120403 0.173 NA 0.184 NA 0.273 NA 110

GLP10-01-02-29-036 DAL-GW-607R-FMS-120403 1.11 91.4 1.31 112 1.28 101 100

Average Concentration (ng/mL) ± %RPD/RSD 0.187 ng/mL ± 15% 0.192 ng/mL ± 8.3% 0.274 ng/mL ± 0.37% 102% ± 7.0%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 26 of 148
Table 20. DAL GW 607L 120403

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-037 DAL-GW-607L-0-120403 0.192 NA 0.227 NA 0.302 NA 96.0

GLP10-01-02-29-038 DAL-GW-607L-DB-120403 0.167 NA 0.213 NA 0.341 NA 105

GLP10-01-02-29-039 DAL-GW-607L-FMS-120403 1.19 100 1.24 102 1.42 110 101

Average Concentration (ng/mL) ± %RPD/RSD 0.180 ng/mL ± 14% 0.220 ng/mL ± 6.4% 0.322 ng/mL ± 12% 100% ± 4.3%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 21. DAL GW 609R 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-040 DAL-GW-609R-0-120330 0.431 NA 0.0936 NA 0.169 NA 94.7

GLP10-01-02-29-041 DAL-GW-609R-DB-120330 0.434 NA 0.0957 NA 0.154 NA 92.1

GLP10-01-02-29-042 DAL-GW-609R-FMS-120330 1.38 93.8 1.13 104 1.14 98.0 101

Average Concentration (ng/mL) ± %RPD/RSD 0.433 ng/mL ± 0.69% 0.0947 ng/mL ± 2.2% 0.162 ng/mL ± 9.3% 95.8% ± 4.6%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

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Off-Site Wells in Decatur, AL - March/April 2012

Page 27 of 148
Table 22. DAL GW 609L 120330

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-043 DAL-GW-609L-0-120330 0.373 NA 0.196 NA 0.576 NA 100

GLP10-01-02-29-044 DAL-GW-609L-DB-120330 0.322 NA 0.141 NA 0.561 NA 114

GLP10-01-02-29-045 DAL-GW-609L-FMS-120330 2.16 90.2 2.23 103 2.47 95.1 97.0

Average Concentration (ng/mL) ± %RPD/RSD 0.348 ng/mL ± 15% 0.169 ng/mL ± 33% (1) 0.569 ng/mL ± 2.6% 104% ± 8.8%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

(1) Sample/sample duplicate RPD did not meet acceptance criteria of ≤20%.

Table 23. DAL GW 610R 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-046 DAL-GW-610R-0-120404 0.0545 NA 0.0787 NA 0.269 NA 99.8

GLP10-01-02-29-047 DAL-GW-610R-DB-120404 0.0541 NA 0.0725 NA 0.281 NA 89.2

GLP10-01-02-29-048 DAL-GW-610R-FMS-120404 1.09 103 1.13 106 1.28 101 90.0

Average Concentration (ng/mL) ± %RPD/RSD 0.0543 ng/mL ± 0.74% 0.0756 ng/mL ± 8.2% 0.275 ng/mL ± 4.4% 93.0% ± 6.3%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

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Off-Site Wells in Decatur, AL - March/April 2012

Page 28 of 148
Table 24. DAL GW 610L 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-049 DAL-GW-610L-0-120404 0.132 NA 0.139 NA 0.644 NA 93.2

GLP10-01-02-29-050 DAL-GW-610L-DB-120404 0.129 NA 0.132 NA 0.648 NA 95.7

GLP10-01-02-29-051 DAL-GW-610L-FMS-120404 2.11 98.5 2.15 101 2.77 106 100

Average Concentration (ng/mL) ± %RPD/RSD 0.131 ng/mL ± 2.3% 0.136 ng/mL ± 5.2% 0.646 ng/mL ± 0.62% 96.4% ± 3.8%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 25. DAL GW 611R 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-052 DAL-GW-611R-0-120404 0.297 NA 0.131 NA 0.642 NA 91.2

GLP10-01-02-29-053 DAL-GW-611R-DB-120404 0.292 NA 0.124 NA 0.658 NA 92.1

GLP10-01-02-29-054 DAL-GW-611R-FMS-120404 1.35 105 1.19 106 1.74 109 104

Average Concentration (ng/mL) ± %RPD/RSd 0.295 ng/mL ± 1.7% 0.128 ng/mL ± 5.5% 0.650 ng/mL ± 2.5% 95.7% ± 7.3%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

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Off-Site Wells in Decatur, AL - March/April 2012

Page 29 of 148
Table 26. DAL GW 611L 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-055 DAL-GW-611L-0-120404 0.270 NA 0.141 NA 0.472 NA 94.0

GLP10-01-02-29-056 DAL-GW-611L-DB-120404 0.252 NA 0.139 NA 0.443 NA 108

GLP10-01-02-29-057 DAL-GW-611L-FMS-120404 1.35 108 1.24 110 1.55 109 108

Average Concentration (ng/mL) ± %RPD/RSD 0.261 ng/mL ± 6.9% 0.140 ng/mL ± 1.4% 0.458 ng/mL ± 6.3% 103% ± 7.7%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 27. DAL GW MW121 120405

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-058 DAL-GW-MW121-0-120405 <0.0250 NA <0.0250 NA NR (1) NA 107

GLP10-01-02-29-059 DAL-GW-MW121-DB-120405 <0.0250 NA <0.0250 NA 0.0307 NA 100

GLP10-01-02-29-060 DAL-GW-MW121-FMS-120405 0.972 96.2 0.969 97.1 0.912 88.3 83.9

Average Concentration (ng/mL) ± %RPD/RSD <0.0250 ng/mL <0.0250 ng/mL 0.0307 ng/mL (2) 97.0% ± 12%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

(1) NR = Not reportable; while the peak area ratio was within the calibration range, the actual sample peak area counts for PFOS were less than the area counts for the PFOS LOQ standard. 

(2) Sample/sample duplicate RPD could not be determined due to the primary sample being not reportable.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 30 of 148
Table 28. DAL GW MW47 120405

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-061 DAL-GW-MW47-0-120405 0.173 NA 0.122 NA 0.178 NA 99.3

GLP10-01-02-29-062 DAL-GW-MW47-DB-120405 0.175 NA 0.103 NA 0.154 NA 85.0

GLP10-01-02-29-063 DAL-GW-MW47-FMS-120405 1.09 90.7 1.01 89.9 1.06 89.6 94.1

Average Concentration (ng/mL) ± %RPD/RSD 0.174 ng/mL ± 1.1% 0.113 ng/mL ± 17% 0.166 ng/mL ± 14% 92.8% ± 7.8%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 29. DAL GW MW13S 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-064 DAL-GW-MW13S-0-120404 0.0847 NA 0.0415 NA <0.0232 NA 94.1

GLP10-01-02-29-065 DAL-GW-MW13S-DB-120404 0.0815 NA 0.0393 NA <0.0232 NA 96.1

GLP10-01-02-29-066 DAL-GW-MW13S-FMS-120404 1.13 104 1.11 107 1.02 102 106

Average Concentration (ng/mL) ± %RPD/RSD 0.0831 ng/mL ± 3.9% 0.0404 ng/mL ± 5.4% <0.0232 ng/mL 98.6% ± 6.2%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 31 of 148
Table 30. DAL GW MW13I 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-067 DAL-GW-MW13I-0-120404 0.0673 NA 0.0457 NA <0.0232 NA 97.9

GLP10-01-02-29-068 DAL-GW-MW13I-DB-120404 0.0690 NA 0.0457 NA <0.0232 NA 89.6

GLP10-01-02-29-069 DAL-GW-MW13I-FMS-120404 1.10 102 1.08 104 1.07 107 99.8

Average Concentration (ng/mL) ± %RPD/RSD 0.0682 ng/mL ± 2.5% 0.0457 ng/mL ± 0.0% <0.0232 ng/mL 95.8% ± 5.6%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 31. DAL GW MW13B 120404

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-070 DAL-GW-MW13B-0-120404 0.0814 NA 0.0534 NA 0.0283 NA 96.0

GLP10-01-02-29-071 DAL-GW-MW13B-DB-120404 0.0792 NA 0.0508 NA 0.0469 NA 109

GLP10-01-02-29-072 DAL-GW-MW13B-FMS-120404 0.988 89.9 1.01 96.0 1.04 100 97.2

Average Concentration (ng/mL) ± %RPD/RSD 0.0803 ng/mL ± 2.7% 0.0521 ng/mL ± 5.0% 0.0376 ng/mL ± 49% (1) 101% ± 7.0%

NA = Not Applicable

All samples were quantitated by internal standard calibration.

(1) Sample/sample duplicate RPD did not meet acceptance criteria ≤20%.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 32 of 148
Table 32. Rinseate Blanks

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-073 DAL-GW-604L-RB-120403 <0.0250 NA <0.0250 NA <0.0232 NA 97.7

GLP10-01-02-29-074 DAL-GW-607R-RB-120403 <0.0250 NA <0.0250 NA <0.0232 NA 101

NA = Not Applicable

All samples were quantitated by internal standard calibration.

Table 33. Trip Blank

PFBS PFHS PFOS 13C4-PFOS

3M LIMS ID Description

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery

Concentration 

(ng/mL) %Recovery %Recovery

GLP10-01-02-29-075 DAL-GW-TRIP01-0-120316 <0.0250 NA <0.0250 NA <0.0232 NA 94.8

GLP10-01-02-29-076 DAL-GW-TRIP01-FMS-120316 1.04 103 1.04 104 0.973 97.5 104

NA = Not Applicable

All samples were quantitated by internal standard calibration.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 33 of 148
10 Conclusion

Laboratory control spikes and field matrix spikes were used to determine the analytical method 

accuracy and precision for PFBS, PFHS, and PFOS. Analysis was successfully completed following 

3M Environmental Laboratory method ETS-8-044.1 described herein. 

11 Data/Sample Retention

All remaining samples and associated project data (hardcopy and electronic) will be archived according 

to 3M Environmental Laboratory standard operating procedures. 

12 Attachments

Attachment A: Protocol Amendment 29 (General Project Outline) and

Protocol Amendment 33 (Sampling Locations Not Collected)

Attachment B: Representative Chromatograms and Calibration Curves

Attachment C: Analytical Method-ETS-8-044.1 

Attachment D: Method Deviation

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 34 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells In Decatur, AL - MarctVApril 2012 

13 Signatures 

Cleston Lange, Ph.D., 3M Principal Analytical Investigator Date 

William K. Reagen, Ph.D., 3M Environmental Laboratory Department Manager Date 

12. 

Gary Hoh jnstein, Sponsor Representative Date 

Jaisimha Kesaw/Study Director I ' Date 

Page 35 of 148 
ATTACHMENT A: PROTOCOL AMENDMENTS

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 36 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 37 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 38 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 39 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 40 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 41 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 42 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 43 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 44 of 148
GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 45 of 148
ATTACHMENT B: REPRESENTATIVE SAMPLE CHROMATOGRAMS AND 

CALIBRATION CURVE(S) 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 46 of 148
b120423a.rdb (13C4PFOS-surr): "Quadratic" Regression ("1 / x" weighting): y = -0.0189 x^2 + 0.986 x + 0.0166 (r = 0.9999)

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 

Analyte Conc. / IS Conc.

0.00.51.01.52.02.53.03.54.04.55.05.56.06.57.07.58.0

Analyte Area / IS Area

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:06:53 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a.rdb (PFOS): "Quadratic" Regression ("1 / x" weighting): y = -0.0124 x^2 + 1.53 x + 0.00798 (r = 0.9999)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2

Analyte Conc. / IS Conc.

02468

1012141618202224262830

Analyte Area / IS Area

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:06:40 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a.rdb (PFHS): "Quadratic" Regression ("1 / x" weighting): y = -0.07 x^2 + 5.49 x + 0.0397 (r = 0.9995)

0 2 4 6 810 12 14 16 18 20 

Analyte Conc. / IS Conc.

05

101520253035404550556065707580859095

100

Analyte Area / IS Area

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:06:15 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a.rdb (PFBS): "Quadratic" Regression ("1 / x" weighting): y = -0.0169 x^2 + 1.27 x + 0.0105 (r = 0.9995)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 

Analyte Conc. / IS Conc.

0123456789

10111213141516171819202122

Analyte Area / IS Area

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:06:24 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 361554 countsHeight: 1.02e+005 cpsStart Time: 15.0 minEnd Time: 15.7 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15.12

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 389935 countsHeight: 1.18e+005 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e5

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.966 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 359640 countsHeight: 1.07e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

15.12

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 0.966 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 370701 countsHeight: 1.09e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:13 PMPrinting Date: Tuesday, May 08, 2012

Page 1 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 0.969 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 303348 countsHeight: 8.43e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e4

Intensity, cps

15.11

Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 355932 countsHeight: 1.01e+005 cpsStart Time: 15.0 minEnd Time: 15.5 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 286956 countsHeight: 8.96e+004 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

15.10

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 315826 countsHeight: 8.99e+004 cpsStart Time: 15.0 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 2 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 367662 countsHeight: 1.02e+005 cpsStart Time: 15.0 minEnd Time: 15.5 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15.09

Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 344061 countsHeight: 8.52e+004 cpsStart Time: 15.0 minEnd Time: 15.5 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 363836 countsHeight: 1.01e+005 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15.09

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 353546 countsHeight: 9.60e+004 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 3 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 339599 countsHeight: 9.49e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

15.09

Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 352734 countsHeight: 9.16e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

1

Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 366884 countsHeight: 9.80e+004 cpsStart Time: 15.0 minEnd Time: 15.7 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.09

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 365410 countsHeight: 9.96e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 4 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Base To Base Retention Time: 15.1 minArea: 339557 countsHeight: 9.06e+004 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

15.08

Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Base To Base Retention Time: 15.1 minArea: 345574 countsHeight: 9.41e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

1

Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 389732 countsHeight: 1.16e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e5

Intensity, cps

15.08

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 316082 countsHeight: 8.66e+004 cpsStart Time: 15.0 minEnd Time: 15.6 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 5 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 363917 countsHeight: 1.01e+005 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15.08

Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 358502 countsHeight: 9.62e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

1

Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 357064 countsHeight: 9.67e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.08

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 353662 countsHeight: 8.62e+004 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 6 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Base To Base Retention Time: 15.1 minArea: 363803 countsHeight: 9.96e+004 cpsStart Time: 15.0 minEnd Time: 15.5 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.08

Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 371078 countsHeight: 1.03e+005 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

1

Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: 0.841 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Base To Base Retention Time: 15.1 minArea: 293746 countsHeight: 6.87e+004 cpsStart Time: 15.0 minEnd Time: 15.5 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

15.07

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Base To Base Retention Time: 15.1 minArea: 358081 countsHeight: 1.01e+005 cpsStart Time: 15.0 minEnd Time: 16.0 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 7 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 368266 countsHeight: 9.55e+004 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 344980 countsHeight: 8.85e+004 cpsStart Time: 15.0 minEnd Time: 15.4 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

1

Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 361551 countsHeight: 9.14e+004 cpsStart Time: 15.0 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

15.07

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 370470 countsHeight: 9.56e+004 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 8 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"

Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 346282 countsHeight: 9.07e+004 cpsStart Time: 15.0 minEnd Time: 15.6 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

15.06

Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 406012 countsHeight: 1.04e+005 cpsStart Time: 14.9 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

1

Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"Peak Name: "13C3PFHS-IS(IS)" Mass(es): "402.0/99.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: 0.975 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 367980 countsHeight: 9.58e+004 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.06

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.956 ng/mL Calculated Conc: 0.954 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 770277 countsHeight: 2.33e+005 cpsStart Time: 16.0 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 9 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.000165 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 22816 countsHeight: 6.54e+003 cpsStart Time: 16.0 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0

500

100015002000250030003500400045005000550060006500

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.189 ng/mL Calculated Conc: 0.202 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 236159 countsHeight: 7.00e+004 cpsStart Time: 16.0 minEnd Time: 16.4 min

14.0 14.5 15.0 15.5 1

Ti

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e4

Intensity, cps

1

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.89 ng/mL Calculated Conc: 1.91 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 2311600 countsHeight: 6.78e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e5

Intensity, cps

16.06

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 0.00 ng/mL Calculated Conc: 0.00606 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 25882 countsHeight: 7.52e+003 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

Ti

0

500

10001500200025003000350040004500500055006000650070007500

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 10 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0903 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 92558 countsHeight: 2.77e+004 cpsStart Time: 16.0 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e42.6e42.7e4

Intensity, cps

16.05

Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.105 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 60721 countsHeight: 1.81e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e4

Intensity, cps

1

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0991 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 67731 countsHeight: 1.75e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e4

Intensity, cps

16.05

Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0923 ng/mL Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 97904 countsHeight: 2.57e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 11 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0970 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 105046 countsHeight: 2.88e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e4

Intensity, cps

16.05

Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0918 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 83057 countsHeight: 2.31e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e4

Intensity, cps

1

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0977 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 47818 countsHeight: 1.33e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

500.0

1000.01500.02000.02500.03000.03500.04000.04500.05000.05500.06000.06500.07000.07500.08000.08500.09000.09500.0

1.0e41.1e41.1e41.2e41.2e41.3e41.3e4

Intensity, cps

16.04

Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0955 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 46132 countsHeight: 1.25e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e41.20e41.25e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 12 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0809 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 66188 countsHeight: 1.87e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e4

Intensity, cps

16.03

Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0944 ng/mL Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 60208 countsHeight: 1.71e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e4

Intensity, cps

1

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0918 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 112446 countsHeight: 2.99e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e4

Intensity, cps

16.02

Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0918 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 38808 countsHeight: 1.05e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 13 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0964 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 38080 countsHeight: 1.04e+004 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e4

Intensity, cps

16.04

Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0905 ng/mL Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 84234 countsHeight: 2.18e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e4

Intensity, cps

1

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0957 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 87436 countsHeight: 2.36e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e4

Intensity, cps

16.03

Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0954 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 98537 countsHeight: 2.60e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e42.6e4

Intensity, cps

16

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 14 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0891 ng/mL Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 71449 countsHeight: 1.96e+004 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e4

Intensity, cps

16.03

Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0960 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 81233 countsHeight: 2.17e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e4

Intensity, cps

16

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0872 ng/mL Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 68378 countsHeight: 1.79e+004 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e4

Intensity, cps

16.03

Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0899 ng/mL Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 60685 countsHeight: 1.65e+004 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 15 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0959 ng/mL Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 84759 countsHeight: 2.27e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e4

Intensity, cps

16.03

Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0818 ng/mL Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 98100 countsHeight: 2.61e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e42.6e4

Intensity, cps

16

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0900 ng/mL Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 136761 countsHeight: 3.79e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e4

Intensity, cps

16.02

Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0936 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 78855 countsHeight: 2.11e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e4

Intensity, cps

16

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 16 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0954 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 62823 countsHeight: 1.60e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e4

Intensity, cps

16.02

Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0918 ng/mL Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 112575 countsHeight: 2.94e+004 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 1

Ti

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e4

Intensity, cps

16

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0934 ng/mL Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 156298 countsHeight: 4.02e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e4

Intensity, cps

16.00

Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0961 ng/mL Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 151542 countsHeight: 4.02e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e4

Intensity, cps

16

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 17 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0906 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 156556 countsHeight: 4.06e+004 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e4

Intensity, cps

16.00

Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0998 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 140424 countsHeight: 3.60e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

Ti

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e4

Intensity, cps

16

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 787582 countsHeight: 2.37e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e5

Intensity, cps

16.07

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 1359480 countsHeight: 4.10e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 18 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.951 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 1050554 countsHeight: 3.29e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e5

Intensity, cps

16.06

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 0.951 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 1202973 countsHeight: 3.55e+005 cpsStart Time: 16.0 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e5

Intensity, cps

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 0.954 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 1131136 countsHeight: 3.23e+005 cpsStart Time: 16.0 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e5

Intensity, cps

16.05

Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 847617 countsHeight: 2.53e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e52.5e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 19 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 487069 countsHeight: 1.42e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e5

Intensity, cps

16.05

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 573003 countsHeight: 1.55e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e5

Intensity, cps

Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 879708 countsHeight: 2.35e+005 cpsStart Time: 15.9 minEnd Time: 16.4 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e5

Intensity, cps

16.04

Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 904732 countsHeight: 2.47e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:14 PMPrinting Date: Tuesday, May 08, 2012

Page 20 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 750238 countsHeight: 1.96e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e5

Intensity, cps

16.04

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 409611 countsHeight: 1.10e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

1

Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 402895 countsHeight: 1.07e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

16.04

Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 664816 countsHeight: 1.79e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 21 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 530893 countsHeight: 1.47e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e5

Intensity, cps

16.03

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1014923 countsHeight: 2.85e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e5

Intensity, cps

1

Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 350424 countsHeight: 9.41e+004 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

16.03

Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 329674 countsHeight: 9.14e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 22 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 769560 countsHeight: 2.13e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e5

Intensity, cps

16.03

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 761733 countsHeight: 2.00e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e5

Intensity, cps

1

Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 861293 countsHeight: 2.28e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e5

Intensity, cps

16.02

Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 661639 countsHeight: 1.80e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 23 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 705951 countsHeight: 1.85e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e5

Intensity, cps

16.03

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 645060 countsHeight: 1.74e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e5

Intensity, cps

1

Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 557868 countsHeight: 1.48e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e5

Intensity, cps

16.03

Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 737501 countsHeight: 2.05e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 24 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: 0.828 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 861693 countsHeight: 2.28e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e5

Intensity, cps

16.01

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1255803 countsHeight: 3.35e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e5

Intensity, cps

1

Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 700559 countsHeight: 1.89e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e5

Intensity, cps

16.02

Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 549216 countsHeight: 1.38e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e41.0e51.1e51.1e51.2e51.2e51.3e51.3e51.4e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 25 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1015988 countsHeight: 2.59e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e52.5e5

Intensity, cps

16.01

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1391119 countsHeight: 3.58e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e5

Intensity, cps

1

Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1315412 countsHeight: 3.41e+005 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e5

Intensity, cps

16.00

Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1428789 countsHeight: 3.74e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 26 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"

Peak Name: "13C8PFOS-IS(IS)" Mass(es): "507.0/80.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: 0.960 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.0 minArea: 1180610 countsHeight: 3.28e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e5

Intensity, cps

16.00

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1822166 countsHeight: 4.98e+005 cpsStart Time: 13.5 minEnd Time: 14.3 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e54.8e5

Intensity, cps

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Base To Base Retention Time: 13.6 minArea: 1846579 countsHeight: 5.06e+005 cpsStart Time: 13.5 minEnd Time: 14.5 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e54.8e55.0e5

Intensity, cps

13.61

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.937 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1679916 countsHeight: 4.55e+005 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 27 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 0.937 ng/mL Calculated Conc: N/A Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1605602 countsHeight: 4.40e+005 cpsStart Time: 13.5 minEnd Time: 14.3 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

13.60

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 0.939 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1457678 countsHeight: 3.78e+005 cpsStart Time: 13.5 minEnd Time: 14.8 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e5

Intensity, cps

Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1719510 countsHeight: 4.72e+005 cpsStart Time: 13.5 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

13.60

Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1529576 countsHeight: 4.26e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 28 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1469746 countsHeight: 3.85e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e5

Intensity, cps

13.60

Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1733753 countsHeight: 4.47e+005 cpsStart Time: 13.5 minEnd Time: 14.1 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1610054 countsHeight: 4.03e+005 cpsStart Time: 13.5 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

13.59

Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1648330 countsHeight: 4.22e+005 cpsStart Time: 13.5 minEnd Time: 14.2 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 29 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1579439 countsHeight: 4.19e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

13.57

Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1614820 countsHeight: 4.00e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e5

Intensity, cps

Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1625694 countsHeight: 4.14e+005 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

13.58

Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1813666 countsHeight: 4.60e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 30 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1747826 countsHeight: 4.69e+005 cpsStart Time: 13.4 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

13.56

Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1743081 countsHeight: 4.47e+005 cpsStart Time: 13.4 minEnd Time: 14.2 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

1

Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1773995 countsHeight: 4.43e+005 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

13.58

Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1738265 countsHeight: 4.64e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 31 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1743915 countsHeight: 4.35e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

13.57

Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1897558 countsHeight: 4.84e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e54.8e5

Intensity, cps

Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1746274 countsHeight: 4.54e+005 cpsStart Time: 13.4 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

13.58

Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Base To Base Retention Time: 13.6 minArea: 1746530 countsHeight: 4.37e+005 cpsStart Time: 13.4 minEnd Time: 14.3 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 32 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1806004 countsHeight: 4.40e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

13.58

Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1772134 countsHeight: 4.36e+005 cpsStart Time: 13.4 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1746973 countsHeight: 4.33e+005 cpsStart Time: 13.4 minEnd Time: 14.1 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

13.58

Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: 0.815 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1602735 countsHeight: 4.01e+005 cpsStart Time: 13.4 minEnd Time: 14.2 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 33 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1714299 countsHeight: 4.27e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

13.57

Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1864573 countsHeight: 4.71e+005 cpsStart Time: 13.4 minEnd Time: 14.1 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1716964 countsHeight: 4.20e+005 cpsStart Time: 13.4 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e5

Intensity, cps

13.57

Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1707309 countsHeight: 4.09e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 34 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"

Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1699211 countsHeight: 4.17e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

13.56

Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 1633440 countsHeight: 4.07e+005 cpsStart Time: 13.4 minEnd Time: 13.9 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

1

Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.5 minArea: 1847859 countsHeight: 4.43e+005 cpsStart Time: 13.4 minEnd Time: 14.0 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e5

Intensity, cps

13.55

Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"Peak Name: "18O2PFBS-IS(IS)" Mass(es): "303.0/84.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: 0.945 ng/mL Calculated Conc: N/A Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 2 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.5 minArea: 1686637 countsHeight: 4.07e+005 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 1

T

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 35 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 1.00 ng/mL Calculated Conc: 0.993 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 2340818 countsHeight: 6.28e+005 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

13.60

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 11199 countsHeight: 2.03e+003 cpsStart Time: 13.5 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 1

T

0

100200300400500600700800900

100011001200130014001500160017001800190020002100

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.198 ng/mL Calculated Conc: 0.203 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 463904 countsHeight: 1.25e+005 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e51.20e51.25e5

Intensity, cps

13.61

11.76 12.56 13.79 14.23 14.76 15.4215.48 15.81

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.98 ng/mL Calculated Conc: 2.13 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 4384603 countsHeight: 1.20e+006 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 1

T

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e61.10e61.15e61.20e6

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 36 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.94 ng/mL Calculated Conc: 9.83 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 16228398 countsHeight: 3.91e+006 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e63.2e63.4e63.6e63.8e6

Intensity, cps

13.60

Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0721 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 179251 countsHeight: 4.75e+004 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e4

Intensity, cps

Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.183 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 378571 countsHeight: 1.03e+005 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

13.60

11.85

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.36 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 2567904 countsHeight: 6.61e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 37 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0977 ng/mL Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 238201 countsHeight: 5.65e+004 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e4

Intensity, cps

13.60

Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.306 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 656136 countsHeight: 1.65e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e5

Intensity, cps

1

Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.338 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 739284 countsHeight: 1.88e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e5

Intensity, cps

13.59

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.434 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 902924 countsHeight: 2.23e+005 cpsStart Time: 13.3 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e5

Intensity, cps

13

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 38 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.47 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 3047229 countsHeight: 7.64e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e57.0e57.5e5

Intensity, cps

13.59

Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.145 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 322138 countsHeight: 8.50e+004 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e4

Intensity, cps

1

Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.108 ng/mL Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 273635 countsHeight: 7.04e+004 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e4

Intensity, cps

13.58

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.201 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 474303 countsHeight: 1.18e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e5

Intensity, cps

13

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 39 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.192 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 451501 countsHeight: 1.16e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e5

Intensity, cps

13.57

Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.19 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 2726739 countsHeight: 6.55e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

13

Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.431 ng/mL Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 988237 countsHeight: 2.45e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e5

Intensity, cps

13.58

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.373 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 859684 countsHeight: 2.22e+005 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e5

Intensity, cps

13

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 40 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0545 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 154364 countsHeight: 3.81e+004 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e4

Intensity, cps

13.57

Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.132 ng/mL Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 317464 countsHeight: 7.40e+004 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e4

Intensity, cps

13

11.77

13.43

Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: N/A Calculated Conc: 2.11 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 4679881 countsHeight: 1.16e+006 cpsStart Time: 13.3 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e61.10e61.15e6

Intensity, cps

13.57

11.74

13.43

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.297 ng/mL Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 714008 countsHeight: 1.79e+005 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:15 PMPrinting Date: Tuesday, May 08, 2012

Page 41 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.270 ng/mL Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 638724 countsHeight: 1.55e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e5

Intensity, cps

13.58

Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0141 ng/mL Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 50338 countsHeight: 1.17e+004 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e4

Intensity, cps

13

Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.173 ng/mL Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 434925 countsHeight: 1.06e+005 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

13.58

11.79 13.42 14.20 14.52 15.47

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0847 ng/mL Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 206622 countsHeight: 5.10e+004 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e45.0e4

Intensity, cps

13

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 42 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0673 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 182719 countsHeight: 4.49e+004 cpsStart Time: 13.4 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e4

Intensity, cps

13.57

11.79

14.22

Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.10 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 2428302 countsHeight: 5.91e+005 cpsStart Time: 13.3 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e5

Intensity, cps

13

11.78

Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0814 ng/mL Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Manual Retention Time: 13.6 minArea: 198516 countsHeight: 4.89e+004 cpsStart Time: 13.3 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e4

Intensity, cps

13.57

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.5 minArea: 9043 countsHeight: 2.20e+003 cpsStart Time: 13.5 minEnd Time: 13.6 min

11.5 12.0 12.5 13.0 1

T

0

100200300400500600700800900

10001100120013001400150016001700180019002000210022002300

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 43 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.6 minArea: 8038 countsHeight: 2.22e+003 cpsStart Time: 13.5 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0

100200300400500600700800900

100011001200130014001500160017001800190020002100220023002400

Intensity, cps

13.56

11.71 14.17

14.22

15.40

15.04

14.54

14.80 15.34

15.72

13.73 15.97

13.45

11.15 12.60 13.11

12.06 11.43

Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.5 minArea: 11124 countsHeight: 2.32e+003 cpsStart Time: 13.4 minEnd Time: 13.6 min

11.5 12.0 12.5 13.0 1

T

0

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500

Intensity, cps

1

11.70

11.37 12.46 12.91 13.39 12.17

Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.04 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: Yes Int. Type: Valley Retention Time: 13.5 minArea: 2276718 countsHeight: 5.44e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e54.8e55.0e55.2e55.4e5

Intensity, cps

13.55

11.69 14.15

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.998 ng/mL Calculated Conc: 1.06 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 2201803 countsHeight: 6.49e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 44 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 2711 countsHeight: 5.04e+002 cpsStart Time: 15.1 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.198 ng/mL Calculated Conc: 0.201 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 436474 countsHeight: 1.26e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e51.20e51.25e5

Intensity, cps

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.98 ng/mL Calculated Conc: 2.10 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 4450237 countsHeight: 1.29e+006 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e61.10e61.15e61.20e61.25e6

Intensity, cps

15.12

17.28

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.92 ng/mL Calculated Conc: 10.0 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 15372831 countsHeight: 3.97e+006 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e63.2e63.4e63.6e63.8e6

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 45 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.261 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 550939 countsHeight: 1.43e+005 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e5

Intensity, cps

Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.131 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 229612 countsHeight: 5.91e+004 cpsStart Time: 14.9 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e4

Intensity, cps

1

14.97

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.33 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 2411598 countsHeight: 6.52e+005 cpsStart Time: 14.8 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

15.11

14.97

Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.105 ng/mL Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 237669 countsHeight: 5.46e+004 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e45.0e45.2e45.4e4

Intensity, cps

15

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 46 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.193 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 398670 countsHeight: 9.51e+004 cpsStart Time: 14.8 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.10

14.96

17.50

Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.224 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 486230 countsHeight: 1.19e+005 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e5

Intensity, cps

15

14.96

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.234 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 491912 countsHeight: 1.05e+005 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15.08

14.96

Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.29 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 2517082 countsHeight: 6.70e+005 cpsStart Time: 14.8 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e5

Intensity, cps

15

14.95

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 47 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.119 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 257767 countsHeight: 5.88e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e4

Intensity, cps

15.09

Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.212 ng/mL Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 464295 countsHeight: 9.95e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15

14.95

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.200 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 436972 countsHeight: 9.89e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

15.08

14.94

Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.227 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 458947 countsHeight: 1.03e+005 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e5

Intensity, cps

15

14.94

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 48 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.24 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 2461329 countsHeight: 6.45e+005 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

15.09

14.95

17.49

Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0936 ng/mL Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 227031 countsHeight: 5.40e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e45.0e45.2e4

Intensity, cps

15

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.196 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 370710 countsHeight: 9.43e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e4

Intensity, cps

15.07

14.94

17.48

Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0787 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 180497 countsHeight: 3.91e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e4

Intensity, cps

15

14.94

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 49 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.139 ng/mL Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 303378 countsHeight: 6.75e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

15.09

14.94

17.48

15.51

Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: N/A Calculated Conc: 2.15 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 4349876 countsHeight: 1.09e+006 cpsStart Time: 14.8 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e6

Intensity, cps

15

14.94 

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.131 ng/mL Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 282287 countsHeight: 6.72e+004 cpsStart Time: 14.9 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

15.09

Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.141 ng/mL Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 312610 countsHeight: 7.01e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e4

Intensity, cps

15

14.94

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 50 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0137 ng/mL Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 44197 countsHeight: 8.92e+003 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0

500

1000150020002500300035004000450050005500600065007000750080008500

Intensity, cps

15.08

17.48

Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.122 ng/mL Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 252801 countsHeight: 6.16e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e4

Intensity, cps

15

14.94

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0415 ng/mL Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 100371 countsHeight: 2.09e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e4

Intensity, cps

15.08

14.94 17.48

Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0457 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 112199 countsHeight: 2.43e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e4

Intensity, cps

15

14.94

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 51 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.08 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 2152957 countsHeight: 5.54e+005 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e54.8e55.0e55.2e55.4e5

Intensity, cps

15.08

14.94 15.52 17.47

Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0534 ng/mL Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.1 minArea: 126268 countsHeight: 2.51e+004 cpsStart Time: 14.8 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e4

Intensity, cps

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 5034 countsHeight: 1.24e+003 cpsStart Time: 15.0 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0

200400600800

100012001400160018002000220024002600280030003200340036003800400042004400

Intensity, cps

17.46

15.50

15.06

Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 4930 countsHeight: 1.44e+003 cpsStart Time: 15.0 minEnd Time: 15.1 min

13.0 13.5 14.0 14.5 15

T

0

200400600800

1000120014001600180020002200240026002800300032003400360038004000420044004600

Intensity, cps

1

14.57 

13.69 14.32 14.83 13.13 14.19

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 52 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Base To Base Retention Time: 15.1 minArea: 4458 countsHeight: 9.75e+002 cpsStart Time: 15.0 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0

200400600800

1000120014001600180020002200240026002800300032003400360038004000420044004600

Intensity, cps

17.45

15.50

15.39

15.06

17.12

16.64

15.95 16.29

14.65

12.98 14.22 13.73

Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.04 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 1 Report Largest Peak: No Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.1 minArea: 2205271 countsHeight: 5.80e+005 cpsStart Time: 14.9 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

T

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e5

Intensity, cps

1

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.928 ng/mL Calculated Conc: 0.897 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.1 minArea: 1126109 countsHeight: 2.44e+005 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e5

Intensity, cps

16.07

15.93

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 8654 countsHeight: 1.14e+003 cpsStart Time: 15.9 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16

Tim

0.0

500.0

1000.01500.02000.02500.03000.03500.04000.04500.05000.05500.06000.06500.07000.07500.08000.08500.09000.09500.0

1.0e41.1e41.1e41.2e41.2e41.3e41.3e41.4e4

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 53 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.184 ng/mL Calculated Conc: 0.179 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.1 minArea: 311104 countsHeight: 6.65e+004 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

16.07

15.93

16.44

15.75 17.76

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.84 ng/mL Calculated Conc: 1.84 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.1 minArea: 3517781 countsHeight: 7.69e+005 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e57.0e57.5e5

Intensity, cps

1

15.92

15.75 

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.22 ng/mL Calculated Conc: 9.16 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.1 minArea: 15367081 countsHeight: 3.03e+006 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e6

Intensity, cps

16.06

15.92

15.74

Sample Name: "b120423a041" Sample ID: "GLP10-01-02-29-007" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-602L-0-" Annotation: ""

Sample Index: 41 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.579 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:12:36 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.9 minArea: 787102 countsHeight: 8.68e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 54 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a044" Sample ID: "GLP10-01-02-29-013" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-603S-0-" Annotation: ""

Sample Index: 44 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.443 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:16:57 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.1 minArea: 347404 countsHeight: 5.17e+004 cpsStart Time: 15.7 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e45.0e4

Intensity, cps

16.05

15.90

16.43

15.74

Sample Name: "b120423a046" Sample ID: "GLP10-01-02-29-015" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-603S-FMS-" Annotation: ""

Sample Index: 46 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.56 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:59:52 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.1 minArea: 1412645 countsHeight: 2.27e+005 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e5

Intensity, cps

15.90

15.74

Sample Name: "b120423a050" Sample ID: "GLP10-01-02-29-016" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-603L-0-" Annotation: ""

Sample Index: 50 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0922 ng/mL Acq. Date: 4/24/2012 Acq. Time: 7:25:51 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 136444 countsHeight: 1.48e+004 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e4

Intensity, cps

16.04

15.90

16.41

Sample Name: "b120423a053" Sample ID: "GLP10-01-02-29-019" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-604R-0-" Annotation: ""

Sample Index: 53 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.17 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:30:16 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.1 minArea: 1682828 countsHeight: 2.21e+005 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e5

Intensity, cps

1

15.90

15.74 

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 55 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a056" Sample ID: "GLP10-01-02-29-022" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-604S-0-" Annotation: ""

Sample Index: 56 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.476 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:34:42 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 574411 countsHeight: 6.13e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e4

Intensity, cps

16.04

15.89

16.41

Sample Name: "b120423a062" Sample ID: "GLP10-01-02-29-025" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-604L-0-" Annotation: ""

Sample Index: 62 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.833 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:43:37 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 544564 countsHeight: 5.70e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e4

Intensity, cps

1

15.88

15.72

Sample Name: "b120423a064" Sample ID: "GLP10-01-02-29-027" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-604L-FMS-" Annotation: ""

Sample Index: 64 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.95 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:26:32 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 1234533 countsHeight: 1.59e+005 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e5

Intensity, cps

16.04

15.88

15.73 16.40

Sample Name: "b120423a065" Sample ID: "GLP10-01-02-29-028" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-605R-0-" Annotation: ""

Sample Index: 65 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0608 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:48:03 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 69846 countsHeight: 9.73e+003 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e41.20e41.25e4

Intensity, cps

16

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 56 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a068" Sample ID: "GLP10-01-02-29-031" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-605L-0-" Annotation: ""

Sample Index: 68 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.230 ng/mL Acq. Date: 4/24/2012 Acq. Time: 1:52:27 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 199180 countsHeight: 2.15e+004 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e4

Intensity, cps

16.03

15.88

16.40

15.72

17.75

Sample Name: "b120423a074" Sample ID: "GLP10-01-02-29-034" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-607R-0-" Annotation: ""

Sample Index: 74 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.274 ng/mL Acq. Date: 4/24/2012 Acq. Time: 4:01:21 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 451981 countsHeight: 4.86e+004 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 1

T

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e4

Intensity, cps

1

15.88

15.74

Sample Name: "b120423a077" Sample ID: "GLP10-01-02-29-037" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-607L-0-" Annotation: ""

Sample Index: 77 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.302 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:05:50 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 15.9 minArea: 171302 countsHeight: 2.03e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e4

Intensity, cps

15.88

16.03

16.39

15.74

Sample Name: "b120423a079" Sample ID: "GLP10-01-02-29-039" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-607L-FMS-" Annotation: ""

Sample Index: 79 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.42 ng/mL Acq. Date: 4/24/2012 Acq. Time: 5:48:48 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 741575 countsHeight: 1.10e+005 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16

Tim

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e5

Intensity, cps

16

15.88

15.73

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 57 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a080" Sample ID: "GLP10-01-02-29-040" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-609R-0-" Annotation: ""

Sample Index: 80 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.169 ng/mL Acq. Date: 4/24/2012 Acq. Time: 6:10:23 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 213133 countsHeight: 2.40e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e4

Intensity, cps

15.89

16.04

16.39

Sample Name: "b120423a086" Sample ID: "GLP10-01-02-29-043" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-609L-0-" Annotation: ""

Sample Index: 86 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.576 ng/mL Acq. Date: 4/24/2012 Acq. Time: 8:19:24 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 703926 countsHeight: 8.33e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e4

Intensity, cps

1

15.87

15.72

Sample Name: "b120423a089" Sample ID: "GLP10-01-02-29-046" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-610R-0-" Annotation: ""

Sample Index: 89 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.269 ng/mL Acq. Date: 4/24/2012 Acq. Time: 9:23:58 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 376004 countsHeight: 4.73e+004 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e4

Intensity, cps

16.02

15.87

16.39

15.72

Sample Name: "b120423a092" Sample ID: "GLP10-01-02-29-049" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-610L-0-" Annotation: ""

Sample Index: 92 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.644 ng/mL Acq. Date: 4/24/2012 Acq. Time: 10:28:29 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 681930 countsHeight: 8.78e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e4

Intensity, cps

16

15.88

15.73

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:16 PMPrinting Date: Tuesday, May 08, 2012

Page 58 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a094" Sample ID: "GLP10-01-02-29-051" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-610L-FMS-" Annotation: ""

Sample Index: 94 Sample Type: Unknown Concentration: N/A Calculated Conc: 2.77 ng/mL Acq. Date: 4/24/2012 Acq. Time: 11:11:35 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 3057514 countsHeight: 4.71e+005 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e53.2e53.4e53.6e53.8e54.0e54.2e54.4e54.6e5

Intensity, cps

16.03

15.88

15.73

16.39

Sample Name: "b120423a098" Sample ID: "GLP10-01-02-29-052" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-611R-0-" Annotation: ""

Sample Index: 98 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.642 ng/mL Acq. Date: 4/25/2012 Acq. Time: 12:37:38 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 663232 countsHeight: 6.88e+004 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

15.88 16

Sample Name: "b120423a101" Sample ID: "GLP10-01-02-29-055" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-611L-0-" Annotation: ""

Sample Index: 101 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.472 ng/mL Acq. Date: 4/25/2012 Acq. Time: 1:42:13 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 423090 countsHeight: 5.25e+004 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e44.4e44.6e44.8e45.0e45.2e4

Intensity, cps

16.03

15.88

16.39

15.74

Sample Name: "b120423a105" Sample ID: "GLP10-01-02-29-059" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW121-DB-" Annotation: ""

Sample Index: 105 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0307 ng/mL Acq. Date: 4/25/2012 Acq. Time: 3:08:14 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 42019 countsHeight: 4.39e+003 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

500.0

1000.01500.02000.02500.03000.03500.04000.04500.05000.05500.06000.06500.07000.07500.08000.08500.09000.09500.0

1.0e41.1e41.1e41.2e41.2e41.3e41.3e4

Intensity, cps

15.89

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:17 PMPrinting Date: Tuesday, May 08, 2012

Page 59 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a110" Sample ID: "GLP10-01-02-29-061" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW47-0-" Annotation: ""

Sample Index: 110 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.178 ng/mL Acq. Date: 4/25/2012 Acq. Time: 4:55:49 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 289713 countsHeight: 4.34e+004 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e43.0e43.2e43.4e43.6e43.8e44.0e44.2e4

Intensity, cps

16.02

15.86

16.39

15.72

17.71

Sample Name: "b120423a113" Sample ID: "GLP10-01-02-29-064" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW13S-0-" Annotation: ""

Sample Index: 113 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0136 ng/mL Acq. Date: 4/25/2012 Acq. Time: 6:00:10 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 37371 countsHeight: 4.06e+003 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16

Tim

0.0

500.0

1000.01500.02000.02500.03000.03500.04000.04500.05000.05500.06000.06500.07000.07500.08000.08500.09000.09500.0

1.0e41.1e41.1e41.2e41.2e41.3e41.3e4

Intensity, cps

15.88 16

Sample Name: "b120423a116" Sample ID: "GLP10-01-02-29-067" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW13I-0-" Annotation: ""

Sample Index: 116 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0152 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:04:44 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 22643 countsHeight: 2.50e+003 cpsStart Time: 15.7 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e41.20e4

Intensity, cps

16.38

16.23

15.88

16.02

17.65

Sample Name: "b120423a118" Sample ID: "GLP10-01-02-29-069" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW13I-FMS-" Annotation: ""

Sample Index: 118 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.07 ng/mL Acq. Date: 4/25/2012 Acq. Time: 7:47:42 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 938478 countsHeight: 1.43e+005 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 1

T

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e5

Intensity, cps

1

15.87

15.71

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:17 PMPrinting Date: Tuesday, May 08, 2012

Page 60 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a122" Sample ID: "GLP10-01-02-29-070" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-MW13B-0-" Annotation: ""

Sample Index: 122 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0283 ng/mL Acq. Date: 4/25/2012 Acq. Time: 9:13:39 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 53976 countsHeight: 5.45e+003 cpsStart Time: 15.7 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e4

Intensity, cps

16.38

Sample Name: "b120423a125" Sample ID: "GLP10-01-02-29-073" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-604L-RB-" Annotation: ""

Sample Index: 125 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.00145 ng/mL Acq. Date: 4/25/2012 Acq. Time: 10:18:06 AM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Valley Retention Time: 16.0 minArea: 14320 countsHeight: 1.59e+003 cpsStart Time: 15.8 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 1

T

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e41.15e4

Intensity, cps

1

15.86 16

Sample Name: "b120423a126" Sample ID: "GLP10-01-02-29-074" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-607R-RB-" Annotation: ""

Sample Index: 126 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.000127 ng/mL Acq. Date: 4/25/2012 Acq. Time: 10:39:37 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 10758 countsHeight: 1.62e+003 cpsStart Time: 15.8 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e4

Intensity, cps

16.37

16.25

15.87

17.67

Sample Name: "b120423a127" Sample ID: "GLP10-01-02-29-075" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-TRIP01-0-" Annotation: ""

Sample Index: 127 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.000373 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:01:06 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 15.9 minArea: 12246 countsHeight: 1.60e+003 cpsStart Time: 15.8 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16

Ti

0.00

500.00

1000.001500.002000.002500.003000.003500.004000.004500.005000.005500.006000.006500.007000.007500.008000.008500.009000.009500.00

1.00e41.05e41.10e4

Intensity, cps

1

15.87

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:17 PMPrinting Date: Tuesday, May 08, 2012

Page 61 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a128" Sample ID: "GLP10-01-02-29-076" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-TRIP01-FMS-" Annotation: ""

Sample Index: 128 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.973 ng/mL Acq. Date: 4/25/2012 Acq. Time: 11:22:33 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: Yes Int. Type: Manual Retention Time: 16.0 minArea: 1828546 countsHeight: 3.06e+005 cpsStart Time: 15.6 minEnd Time: 16.1 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e5

Intensity, cps

16.00

15.85

15.70 16.37

17.61

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:19:17 PMPrinting Date: Tuesday, May 08, 2012

Page 62 of 62

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a external.rdb (13C4PFOS-surr): "Quadratic" Regression ("1 / x" weighting): y = -2.12e+004 x^2 + 9.3e+005 x + -88.6 (r = 0.9980)

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 

Concentration, ng/mL

0.0

5.0e51.0e61.5e62.0e62.5e63.0e63.5e64.0e64.5e65.0e65.5e66.0e66.5e66.9e6

Area, counts

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:09:22 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a external.rdb (PFOS): "Quadratic" Regression ("1 / x" weighting): y = -8.6e+003 x^2 + 1.4e+006 x + -1.71e+003 (r = 0.9990)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 

Concentration, ng/mL

0.0

1.0e62.0e63.0e64.0e65.0e66.0e67.0e68.0e69.0e61.0e71.1e71.2e71.3e71.4e71.5e71.6e71.7e71.8e71.9e72.0e72.1e72.2e72.3e72.4e72.5e72.6e72.7e72.8e7

Area, counts

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:09:09 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a external.rdb (PFHS): "Quadratic" Regression ("1 / x" weighting): y = -6.51e+004 x^2 + 2.3e+006 x + 6.41e+003 (r = 0.9994)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 

Concentration, ng/mL

0.0

1.0e62.0e63.0e64.0e65.0e66.0e67.0e68.0e69.0e61.0e71.1e71.2e71.3e71.4e71.5e71.6e71.7e71.8e71.9e72.0e72.1e72.2e72.3e72.4e72.5e72.6e72.7e7

Area, counts

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:08:38 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
b120423a external.rdb (PFBS): "Quadratic" Regression ("1 / x" weighting): y = -6.44e+004 x^2 + 2.41e+006 x + 1.85e+004 (r = 0.9993)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 

Concentration, ng/mL

0.0

1.0e62.0e63.0e64.0e65.0e66.0e67.0e68.0e69.0e61.0e71.1e71.2e71.3e71.4e71.5e71.6e71.7e71.8e71.9e72.0e72.1e72.2e72.3e72.4e72.5e72.6e72.7e72.8e72.9e7

Area, counts

Workstation: ETSBUSTER Batch Name: b120423a.dab*Data worked up by KJU Page 1 of 1Printing Time: 2:08:49 PMPrinting Date: Thursday, April 26, 2012

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.956 ng/mL Calculated Conc: 0.845 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 770277 countsHeight: 2.33e+005 cpsStart Time: 16.0 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e5

Intensity, cps

16.07

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0247 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 22816 countsHeight: 6.54e+003 cpsStart Time: 16.0 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16

Ti

0

500

100015002000250030003500400045005000550060006500

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.189 ng/mL Calculated Conc: 0.256 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 236159 countsHeight: 7.00e+004 cpsStart Time: 16.0 minEnd Time: 16.4 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e4

Intensity, cps

16.06

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.89 ng/mL Calculated Conc: 2.65 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 2311600 countsHeight: 6.78e+005 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16

Ti

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e5

Intensity, cps

1

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:31 PMPrinting Date: Tuesday, May 08, 2012

Page 1 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"

Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 0.00 ng/mL Calculated Conc: 0.0280 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 25882 countsHeight: 7.52e+003 cpsStart Time: 15.9 minEnd Time: 16.3 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0

500

10001500200025003000350040004500500055006000650070007500

Intensity, cps

Sample Name: "b120423a038" Sample ID: "GLP10-01-02-29-004" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-602S-0-" Annotation: ""

Sample Index: 38 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.111 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:08:11 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 103235 countsHeight: 2.94e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Ti

0.0

2000.04000.06000.08000.0

1.0e41.2e41.4e41.6e41.8e42.0e42.2e42.4e42.6e42.8e4

Intensity, cps

1

Sample Name: "b120423a040" Sample ID: "GLP10-01-02-29-006" File: "b120423a.wiff"Peak Name: "13C4PFOS-surr" Mass(es): "503.0/80.0 amu"Comment: "DAL-GW-602S-FMS-" Annotation: ""

Sample Index: 40 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.0893 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:51:08 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 82739 countsHeight: 2.51e+004 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

1000.02000.03000.04000.05000.06000.07000.08000.09000.0

1.0e41.1e41.2e41.3e41.4e41.5e41.6e41.7e41.8e41.9e42.0e42.1e42.2e42.3e42.4e42.5e4

Intensity, cps

16.05

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 1.00 ng/mL Calculated Conc: 0.988 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 2337194 countsHeight: 6.28e+005 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13

Ti

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

13.45

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:31 PMPrinting Date: Tuesday, May 08, 2012

Page 2 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 9272 countsHeight: 1.89e+003 cpsStart Time: 13.5 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0

100200300400500600700800900

100011001200130014001500160017001800190020002100

Intensity, cps

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.198 ng/mL Calculated Conc: 0.184 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 458730 countsHeight: 1.25e+005 cpsStart Time: 13.5 minEnd Time: 13.7 min

11.5 12.0 12.5 13.0 13

Ti

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e51.20e51.25e5

Intensity, cps

11.76 12.56 

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.98 ng/mL Calculated Conc: 1.91 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 4377596 countsHeight: 1.20e+006 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e61.10e61.15e61.20e6

Intensity, cps

13.61

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.94 ng/mL Calculated Conc: 8.77 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Valley Retention Time: 13.6 minArea: 16204133 countsHeight: 3.91e+006 cpsStart Time: 13.5 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13

Ti

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e63.2e63.4e63.6e63.8e6

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:31 PMPrinting Date: Tuesday, May 08, 2012

Page 3 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a038" Sample ID: "GLP10-01-02-29-004" File: "b120423a.wiff"

Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-602S-0-" Annotation: ""

Sample Index: 38 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.287 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:08:11 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Manual Retention Time: 13.6 minArea: 705147 countsHeight: 1.91e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0

Time, min

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e5

Intensity, cps

Sample Name: "b120423a040" Sample ID: "GLP10-01-02-29-006" File: "b120423a.wiff"Peak Name: "PFBS" Mass(es): "299.0/99.0 amu,299.0/80.0 amu"Comment: "DAL-GW-602S-FMS-" Annotation: ""

Sample Index: 40 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.20 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:51:08 AM Modified: Yes RT Window: 30.0 secExpected RT: 13.6 minUse Relative RT: No Int. Type: Manual Retention Time: 13.6 minArea: 2810528 countsHeight: 7.46e+005 cpsStart Time: 13.4 minEnd Time: 13.8 min

11.5 12.0 12.5 13.0 13.

Tim

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e57.0e5

Intensity, cps

1

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.998 ng/mL Calculated Conc: 0.984 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 2201129 countsHeight: 6.49e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e5

Intensity, cps

15.12

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: < 0 Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 3421 countsHeight: 4.22e+002 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

Ti

0

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:32 PMPrinting Date: Tuesday, May 08, 2012

Page 4 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.198 ng/mL Calculated Conc: 0.188 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 434928 countsHeight: 1.26e+005 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e51.10e51.15e51.20e51.25e5

Intensity, cps

15.12

17.28

15.56 16.84

Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.98 ng/mL Calculated Conc: 2.06 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 4449307 countsHeight: 1.29e+006 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15

Ti

0.00

5.00e41.00e51.50e52.00e52.50e53.00e53.50e54.00e54.50e55.00e55.50e56.00e56.50e57.00e57.50e58.00e58.50e59.00e59.50e51.00e61.05e61.10e61.15e61.20e61.25e6

Intensity, cps

1

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.92 ng/mL Calculated Conc: 8.98 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: No Proc. Algorithm: IntelliQuan - IQA Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Valley Retention Time: 15.1 minArea: 15368672 countsHeight: 3.97e+006 cpsStart Time: 15.0 minEnd Time: 15.3 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e63.2e63.4e63.6e63.8e6

Intensity, cps

15.11

Sample Name: "b120423a038" Sample ID: "GLP10-01-02-29-004" File: "b120423a.wiff"Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-602S-0-" Annotation: ""

Sample Index: 38 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.179 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:08:11 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Manual Retention Time: 15.1 minArea: 415388 countsHeight: 1.00e+005 cpsStart Time: 14.9 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 

Tim

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e47.0e47.5e48.0e48.5e49.0e49.5e4

Intensity, cps

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:32 PMPrinting Date: Tuesday, May 08, 2012

Page 5 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a040" Sample ID: "GLP10-01-02-29-006" File: "b120423a.wiff"

Peak Name: "PFHS" Mass(es): "399.0/99.0 amu,399.0/80.0 amu"Comment: "DAL-GW-602S-FMS-" Annotation: ""

Sample Index: 40 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.14 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:51:08 AM Modified: Yes RT Window: 30.0 secExpected RT: 15.1 minUse Relative RT: No Int. Type: Manual Retention Time: 15.1 minArea: 2530894 countsHeight: 7.28e+005 cpsStart Time: 14.9 minEnd Time: 15.2 min

13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e57.0e5

Intensity, cps

15.10

14.97

Sample Name: "b120423a017" Sample ID: "11012-62-8" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "1.0 ng/mL FC std in Synth. Water" Annotation: ""

Sample Index: 17 Sample Type: Standard Concentration: 0.928 ng/mL Calculated Conc: 0.808 ng/mL Acq. Date: 4/23/2012 Acq. Time: 7:37:05 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 16.1 minArea: 1124590 countsHeight: 2.44e+005 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

1.0e42.0e43.0e44.0e45.0e46.0e47.0e48.0e49.0e41.0e51.1e51.2e51.3e51.4e51.5e51.6e51.7e51.8e51.9e52.0e52.1e52.2e52.3e52.4e5

Intensity, cps

1

15.93

Sample Name: "b120423a024" Sample ID: "12001-160" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "Method Blank" Annotation: ""

Sample Index: 24 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.00815 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:07:34 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 15.9 minArea: 9691 countsHeight: 1.17e+003 cpsStart Time: 15.9 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

500.0

1000.01500.02000.02500.03000.03500.04000.04500.05000.05500.06000.06500.07000.07500.08000.08500.09000.09500.0

1.0e41.1e41.1e41.2e41.2e41.3e41.3e41.4e4

Intensity, cps

16.44

Sample Name: "b120423a026" Sample ID: "LCS-120416-1" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "0.2ppb LCS" Annotation: ""

Sample Index: 26 Sample Type: QC Concentration: 0.184 ng/mL Calculated Conc: 0.224 ng/mL Acq. Date: 4/23/2012 Acq. Time: 10:50:29 PM Modified: No Proc. Algorithm: IntelliQuan - MQII Noise Percentage: 50 Base. Sub. Window: 1.00 minPeak-Split. Factor: 8 Report Largest Peak: Yes Min. Peak Height: 0.00 cpsMin. Peak Width: 0.00 secSmoothing Width: 3 pointsRT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Valley Retention Time: 16.1 minArea: 311104 countsHeight: 6.65e+004 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 1

T

0.0

5000.0

1.0e41.5e42.0e42.5e43.0e43.5e44.0e44.5e45.0e45.5e46.0e46.5e4

Intensity, cps

15.93

15.75 

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:32 PMPrinting Date: Tuesday, May 08, 2012

Page 6 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
Sample Name: "b120423a029" Sample ID: "LCS-120416-4" File: "b120423a.wiff"

Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "2ppb LCS" Annotation: ""

Sample Index: 29 Sample Type: QC Concentration: 1.84 ng/mL Calculated Conc: 2.55 ng/mL Acq. Date: 4/23/2012 Acq. Time: 11:54:49 PM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 16.1 minArea: 3516373 countsHeight: 7.69e+005 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.0

5.0e41.0e51.5e52.0e52.5e53.0e53.5e54.0e54.5e55.0e55.5e56.0e56.5e57.0e57.5e5

Intensity, cps

16.07

15.92

15.75 16.43

Sample Name: "b120423a032" Sample ID: "LCS-120416-7" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "10ppb LCS" Annotation: ""

Sample Index: 32 Sample Type: QC Concentration: 9.22 ng/mL Calculated Conc: 11.8 ng/mL Acq. Date: 4/24/2012 Acq. Time: 12:59:13 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 16.1 minArea: 15369855 countsHeight: 3.03e+006 cpsStart Time: 15.7 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

2.0e54.0e56.0e58.0e51.0e61.2e61.4e61.6e61.8e62.0e62.2e62.4e62.6e62.8e63.0e6

Intensity, cps

16

15.92

15.74

Sample Name: "b120423a038" Sample ID: "GLP10-01-02-29-004" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-602S-0-" Annotation: ""

Sample Index: 38 Sample Type: Unknown Concentration: N/A Calculated Conc: 0.490 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:08:11 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 16.1 minArea: 682823 countsHeight: 1.11e+005 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5

Time, min

0.00

5000.00

1.00e41.50e42.00e42.50e43.00e43.50e44.00e44.50e45.00e45.50e46.00e46.50e47.00e47.50e48.00e48.50e49.00e49.50e41.00e51.05e5

Intensity, cps

Sample Name: "b120423a040" Sample ID: "GLP10-01-02-29-006" File: "b120423a.wiff"Peak Name: "PFOS" Mass(es): "499.0/130.0 amu,499.0/99.0 amu,499.0/80.0 amu"Comment: "DAL-GW-602S-FMS-" Annotation: ""

Sample Index: 40 Sample Type: Unknown Concentration: N/A Calculated Conc: 1.32 ng/mL Acq. Date: 4/24/2012 Acq. Time: 3:51:08 AM Modified: Yes RT Window: 30.0 secExpected RT: 16.1 minUse Relative RT: No Int. Type: Manual Retention Time: 16.1 minArea: 1835239 countsHeight: 3.19e+005 cpsStart Time: 15.6 minEnd Time: 16.2 min

14.0 14.5 15.0 15.5 16

Tim

0.0

2.0e44.0e46.0e48.0e41.0e51.2e51.4e51.6e51.8e52.0e52.2e52.4e52.6e52.8e53.0e5

Intensity, cps

16

15.90

15.74 

*** Buster J2930203 Batch Name: b120423a.dabData printed by STWPrinting Time: 1:23:32 PMPrinting Date: Tuesday, May 08, 2012

Page 7 of 7

G

Analysis of PFBS, PFH

Off-Site Wells in D
ATTACHMENT C: ANALYTICAL METHOD(S) 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 124 of 148
Page 125 of 148
ETS-8-044.1 Page 2 of 22

Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

Direct Injection Analysis

1 Scope and Application

This method describes the direct injection analysis of perfluorinated compounds (PFCs) from 

water matrices using high-performance liquid chromatography tandem mass spectrometry 

(HPLC/MS/MS). The method is generally applicable but not limited to the measurement of 

perfluoroalkyl sulfonamides and perfluorinated alkyl acids (PFAAs) such as perfluorosulfonic 

acids (PFSAs) and perfluorocarboxylic acids (PFCAs) (Table 1). Water samples containing 

heavy particulate may require preparation by an alternate method such as ETS-8-154 

“Determination of Perfluorinated Acids, Alcohols, Amides, and Sulfonates In Water By Solid 

Phase Extraction and High Performance Liquid Chromatography/Mass Spectrometry”. The 

method is applicable to both external standard and internal standard calibration1

. 

Table 1. Representative Target Analytes

Acronym Analyte

Chemical Abstract Services 

Registry Number (CASRN)

PFBA (C4 Acid) Perfluorobutanoic acid 375-22-4

PFPeA (C5 Acid) Perfluoropentanoic acid 2706-90-3

PFHxA (C6 Acid) Perfluorohexanoic acid 307-24-4

PFHpA (C7 Acid) Perfluoroheptanoic acid 375-85-9

PFOA (C8 Acid) Perfluorooctanoic acid 335-67-1

PFNA (C9 Acid) Perfluorononanoic acid 375-95-1

PFDA (C10 Acid) Perfluorodecanoic acid 335-76-2

PFUnA (C11 Acid) Perfluoroundecanoic acid 2058-94-8

PFDoA (C12 Acid) Perfluorododecanoic acid 307-55-1

PFTrDA (C13 Acid) Perfluorotridecanoic acid 72629-94-8

PFBS (C4 Sulfonate) Perfluorobutanesulfonic acid 375-73-5

PFHS (C6 Sulfonate) Perfluorohexanesulfonic acid 355-46-4

PFOS (C8 Sulfonate) Perfluorooctanesulfonic acid 1763-23-1

FBSA (C4 Sulfonamide Perfluorobutanesulfonamide 30334-69-1

FOSA (C8 Sulfonamide) Pefluorooctanesulfonamide 754-91-6

The Minimum Reporting Level (MRL) is the Limit of Quantitation (LOQ) that meets Data 

Quality Objectives (DQOs) that are developed based on the intended use of this method. 

Method Flexibility – This is a performance-based method and may be generally applied to the 

determination of perfluorinated compounds in water matrices when analysis batch quality 

control (QC) criteria are met2

. Each set of samples are prepared in an analysis batch with 

calibration standards, LCSs, blanks, and continuing calibration check standards analyzed on 

the same instrument during a time period that begins and ends with the analysis of the 

appropriate continuing calibration check standards. The laboratory is permitted to modify the 

LC column, mobile phase composition, LC conditions, and MS/MS conditions. Method 

modifications should be considered to improve method performance or to meet data quality 

objectives for the study. In all cases where method modifications are implemented, the batch 

 

1 The method is supported by validation with internal standard calibration for C4-C13 PFCAs, C4, C6, and C8 PFSAs, 

and C8 perfluoroalkane sulfonamide in laboratory control samples under 3M method validation E11-0667.

2 Guidance for establishing method QC Criteria based on a.) FDA May 2001, “Guidance for Industry, Bioanalytical 

Method Validation”, b.) EPA Method 537, and c.) European Commission: Guidance for Generating and Reporting 

Methods of Analysis in Support of Pre-registration Data Requirements for Annex II (Part A, section 4) and Annex III 

(Part A,section 5) of Directive 91/414, SANCO/3029/99 rev. 4 (11/07/00).

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 126 of 148
ETS-8-044.1 Page 3 of 22

Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

Direct Injection Analysis

analytical QCs (section 9) must be completed and pass QC acceptance criteria (section 13) if 

the data from the analytical batch are to be reported. 

2 Method Summary

Water samples are analyzed as neat aqueous sample or as solvent diluted aqueous samples 

by direct injection using LC/MS/MS. Samples containing heavy particulate may not be 

suitable for analysis by this method. Samples containing suspended particulate should be 

centrifuged or filtered prior to removing a sample aliquot or diluting with solvent. The water 

sample is mixed well prior to removing an aliquot or diluting, if necessary, with ASTM Type I 

water, HPLC water, other suitable water, or solvent (methanol). 

Quantitation is by stable isotope internal standard calibration in laboratory reagent water. All 

perfluorinated compounds (PFCs) target analyte concentrations of perfluorosulfonic acids 

(PFSAs) and perfluorocarboxylic acids (PFCAs) are reported as anions and corrected for 

their salt or free acid forms. Alternatively, quantitation may be performed by external 

standard calibration. 

This is a performance-based method. Method uncertainty for each target analyte is 

determined for each analytical batch using multiple laboratory control spikes at multiple 

concentrations. This method also requires that the precision and accuracy for each sample 

be determined using field matrix spikes to verify that the method is applicable to each sample 

matrix. 

Calibration standards for PFUnA, PFDoA, PFTrDA, and FOSA have been found to be 

unstable for more than 2 days in 100% water. Samples requiring analysis for these 

compounds by this method should be diluted 1:1 with methanol and analyzed against a 

calibration curve prepared in 1:1 synthetic groundwater:MeOH.

3 Definitions 

3.1 Analysis Batch 

A set of study samples that are prepared with calibration standards, laboratory control 

samples, and procedural blanks, and analyzed on the same instrument during a time period 

that begins and ends with the analysis of the appropriate continuing calibration check 

standards.

3.2 Analytical Sample 

A portion of a laboratory sample prepared for analysis.

3.3 Calibration Standard

A solution prepared by spiking a known volume of the Working Standard (WS) into a 

predetermined amount of ASTM Type I, HPLC grade water, or other suitable water (i.e. 

matrix water), and analyzed according to this method. Calibration standards are used to 

calibrate the instrument response with respect to analyte concentration.

3.4 Laboratory Duplicate Sample (LDS, or Lab Dup)

A laboratory duplicate sample is a separate aliquot of a sample taken in the analytical 

laboratory that is analyzed separately with identical procedures. Analysis of LDSs compared 

to that of the first aliquot give a measure of the precision associated with laboratory 

procedures, but not with sample collection, preservation, or storage procedures.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 127 of 148
ETS-8-044.1 Page 4 of 22

Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

Direct Injection Analysis

3.5 Field Blank (FB)/Trip Blank (TB)

ASTM Type I, HPLC grade water, or other suitable water, placed in a sample container in the 

laboratory and treated as a sample in all respects, including exposure to sampling site 

conditions, storage, preservation and all analytical procedures. The purpose of the TB is to 

determine if test substances or other interferences are present in the field environment. This 

sample is also referred to as a Trip Blank. 

3.6 Field Duplicate Sample (FDS, Field Dup)

A sample collected in duplicate at the same time from the same location as the sample. The 

FDS is handled under identical circumstances and treated exactly the same throughout field 

and laboratory procedures. Analysis of the FDS compared to that of the first sample gives a 

measure of the precision associated with sample collection, preservation and storage, as well 

as with laboratory procedures.

3.7 Field Matrix Spike (FMS)

A sample to which known quantities of the target analytes, ISs and SRSs are added to the 

sample bottle in the laboratory before the bottles are sent to the field for collection of aqueous 

samples. A known, specific volume of sample must be added to the sample container 

without rinsing. This may be accomplished by making a “fill to this level” line on the outside of 

the sample container. The FMS is analyzed to ascertain if any matrix effects, interferences, 

or stability issues may complicate the interpretation of the sample analysis.

3.8 Trip Blank Matrix Spike (TBMS) 

An aliquot of ASTM Type I, HPLC grade water, or other suitable water, to which known 

quantities of the target analytes, ISs and SRSs are added in the laboratory prior to the 

shipment of the collection bottles. The TBMS is analyzed exactly like a study sample to help 

determine if the method is in control and whether a loss of analyte or analytical bias could be 

attributed to sample holding time, sample storage and/or shipment issues. A low and high 

TBMS are appropriate when expected sample concentrations are not known or may vary.

3.9 Internal Standard (IS)

A compound added to each study sample, calibration standard, laboratory control samples, 

and procedural blanks at a consistent level (typically around 1 ng/mL). The internal 

standard(s) are stable isotope labeled versions of the target analytes. The area count ratio of 

the target analyte to the internal standard is used for calibration. Surrogate ISs are applied 

when stable isotope ISs of target analytes are unavailable. A surrogate IS is not necessarily 

a stable isotope labeled version of the target analyte, but is treated as an internal standard for 

quantitation.

3.10 Laboratory Control Sample (LCS)

An aliquot of control matrix to which known quantities of the target analytes, ISs and SRSs

(when applicable) are added in the laboratory at the time when samples are aliquotted. At 

least three levels (two levels for SRSs) in triplicate are included, one generally at the low end 

of the calibration curve and one near the mid range and the upper end of the curve. The 

LCSs are analyzed exactly like a laboratory sample to determine whether the stability of the 

standards. LCSs should be prepared each day samples are aliquoted. 

3.11 Laboratory Matrix Spike (LMS)

A laboratory matrix spike is an aliquot of a sample to which known quantities of target 

analytes, ISs and SRSs (when applicable) are added in the laboratory. The LMS is analyzed 

exactly like a laboratory sample to determine whether the sample matrix contributes bias to 

the analytical results. The endogenous concentrations of the analytes in the sample matrix 

must be determined in a separate aliquot and the measured values in the LMS corrected for 

these concentrations. LMSs are optional for analysis of aqueous samples.

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 128 of 148
ETS-8-044.1 Page 5 of 22

Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

Direct Injection Analysis

3.12 Laboratory Sample

A portion or aliquot of a sample received from the field for testing.

3.13 Limit of Quantitation (LOQ)

The lower limit of quantitation (LLOQ) for an analytical batch is the lowest concentration that 

can be reliably quantitated within the specified limits of precision and accuracy. The LLOQ is 

generally selected as the lowest non-zero standard in the calibration curve that meets method 

acceptance criteria. The LLOQ for each target analyte is established for each analysis batch 

as the lowest calibration standard with area counts at least twice that of the average area 

counts of the procedural blanks.

The upper limit of quantitation (ULOQ) for an analytical batch is the highest concentration that 

can be reliably quantitated within the specified limits of precision and accuracy. The highest 

standard in the calibration curve that meets method acceptance criteria is defined as the 

ULOQ.

3.14 Method/Procedural Blank

An aliquot of control matrix that is treated exactly like a laboratory sample including exposure 

to all glassware, equipment, solvents, and reagents that are used with other laboratory 

samples. The method blank is used to determine if test substances or other interferences are 

present in the laboratory environment, the reagents, or the apparatus.

3.15 Sample

A sample is an aliquot removed from a larger quantity of material intended to represent the 

original source material.

3.16 Stock Standard Solution (SSS)

A concentrated solution of a single-analyte prepared in the laboratory with an assayed 

reference compound.

3.17 Surrogate Internal Standard

An IS that is not necessarily a stable isotopically labeled target analyte, but is treated as an 

internal standard for quantitation. Surrogate ISs are used when isotopically labeled 

counterparts of the target analyte are not commercially or readily available.

3.18 Surrogate Recovery Standard (SRS)

An isotopically labeled standard, not used as an internal standard, that is added to each 

sample and appropriate QC sample as a means to evaluate the method performance for a 

chemical class of compounds (e.g., PFSAs, PFCAs). 

3.19 Working Standard (WS)

A solution of several analytes prepared in the laboratory from SSSs and diluted as needed to 

prepare calibration standards and other required analyte solutions.

4 Warnings and Cautions

4.1 Health and Safety

The acute and chronic toxicity of the standards for this method have not been precisely 

determined; however, each should be treated as a potential health hazard. The analyst 

should wear gloves, a lab coat, and safety glasses to prevent exposure to chemicals that 

might be present.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

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The laboratory is responsible for maintaining a safe work environment and a current 

awareness of local regulations regarding the handling of the chemicals used in this method. 

A reference file of material safety data sheets (MSDS) should be available to all personnel 

involved in these analyses.

4.2 Cautions

The analyst must be familiar with the laboratory equipment and potential hazards including, 

but not limited to, the use of solvents, pressurized gas and solvent lines, high voltage, and 

vacuum systems. Refer to the appropriate equipment procedure or operator manual for 

additional information and cautions.

5 Interferences

During sample preparation and analysis, major potential contaminant sources are reagents 

and glassware. All materials used in the analyses shall be demonstrated to be free from 

interferences under conditions of analysis by running method blanks.

Parts and supplies that contain Teflon® should be avoided or minimized due to the possibility 

of interference and/or contamination. These may include, but are not limited to: wash bottles, 

Teflon® lined caps, autovial caps, HPLC parts, etc.

The use of disposable micropipettes or pipettes to aliquot standard solutions is recommended 

to make calibration standards and matrix spikes.

6 Instrumentation, Supplies, and Materials

6.1 Instrumentation

Analytical balance capable of reading to 0.0001g 

HPLC/MS/MS or HPLC/MS system, as described in Section 10. 

6.2 Supplies and Materials

Sample collection bottles—HDPE (e.g., NalgeneTM) wide-mouth bottles with screw cap. 

Note: Do not use fluorinated or Teflon® bottles or lined caps.

Coolers or boxes for sample shipment.

15-mL and 50-mL disposable polypropylene centrifuge tubes.

Class A pipettes and volumetric flasks, various.

2 mL HPLC autovials 

Disposable pipettes, polypropylene or glass as appropriate

Centrifuge capable of spinning 15-mL and 50-mL polypropylene tubes at 3000 rpm.

7 Reagents and Standards

Note: Suppliers and catalog numbers are for illustrative purposes only. Equivalent 

performance may be achieved using chemicals obtained from other suppliers. Do not use a 

lesser grade of chemical than those listed. 

7.1 Chemicals

Water – Milli-Q, HPLC grade, or other suitably appropriate sources

Calcium Acetate - A.C.S. Reagent Grade

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

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Magnesium Acetate - A.C.S. Reagent Grade

Methanol – HPLC grade

Ammonium Acetate – A.C.S. Reagent Grade

7.2 Representative Target Analytes, ISs, and SRSs

PFBA, Heptafluorobutyric Acid, (C4 Perfluorinated Acid)

PFPeA, Nonafluoropentanoic Acid (C5 Perfluorinated Acid)

PFHxA, Perfluorohexanoic Acid (C6 Perfluorinated Acid)

PFHpA, Tridecafluoroheptanoic Acid, (C7 Perfluorinated Acid)

PFOA, Ammonium perfluorooctanoate, (C8 Perfluorinated Acid)

PFNA, Heptadecafluorononanoic Acid, (C9 Perfluorinated Acid)

PFDA, Nonadecafluorodecanoic Acid (C10 Perfluorinated Acid)

PFUnA, Perfluoroundecanoic Acid, (C11 Perfluorinated Acid)

PFDoA, Perfluorododecanoic Acid, (C12 Perfluorinated Acid)

PFTrDA, Perfluorotridecanoic Acid, (C13 Perfluorinated Acid)

FBSA, Perfluorobutanesulfonamide

FOSA, Perfluorooctanesulfonylamide 

PFBS, Potassium Perfluorobutanesulfonate

PFHS, Perfluorohexanesulfonate

PFOS, Potassium perfluorooctanesulfonate

PFOA [1,2, 3, 4-

13C], 13C4-isotopically labeled perfluorooctanoic acid (SRS)

PFOS [1,2, 3, 4-

13C], 13C4-isotopically labeled Perfluorooctanesulfonate (SRS)

PFUnA [1,2-

13C], 13C2-isotopically labeled Perfluoroundecanoic acid (SRS)

A custom mix of ISs in a methanolic solution containing ([1,2,3,4-

13C4]PFBA, [1,2 - 13C2]PFHxA, [1,2,3,4,5,6,7,8-

13C8]PFOA, [1,2,3,4,5,6,7,8,9-13C9]PFNA, [1,2 -13C2]PFDA, 

[1,2,3,4,5,6,7 -13C7]PFUnA, [1,2 -

13C2]PFDoA, [1,2,3 -13C3]PFHS, [1,2,3,4,5,6,7,8-13C8]PFOS, 

and [1,2,3,4,5,6,7,8-

13C8]PFOSA (Wellington Laboratories, Guelph, ON) in combination with 

added ([1,2,3,4,5-

13C5]PFPeA, ([1,2,3,4-13C4]PFHpA, and [18O2]PFBS can be used to prepare 

a stock IS solution. Alternatively, individual stable isotope ISs can be used to prepare a stock 

IS mixture.

Other ISs can be applied.

7.3 Reagent Preparation

2 mM Ammonium acetate solution (Analysis)—Weigh 0.3 g of Ammonium acetate and 

dissolve in 2.0 L of reagent water. 

Synthetic Groundwater (containing 25 ppm Ca and Mg) – Weigh 0.61 g of Calcium Acetate 

and 0.92 g of Magnesium Acetate and dissolve in 6.0 L of reagent water.

Note: Alternative volumes may be prepared as long as the ratios of the solvent to solute ratios 

are maintained.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

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7.4 Stock Standard Solution (SSS) and Working Standard Solution 

Preparation

The following standard preparation procedure serves as an example. Weighed amounts and 

final volumes may be changed to suit the needs of a particular study. For example, μL 

volumes may be spiked into volumetric flasks when diluting stock solutions to appropriate 

levels.

100 μg/mL target analyte SSSs—Weigh out 10 mg of analytical standard (corrected for 

percent salt, acid [ETS-4-031] and purity) and dilute to 100 mL with methanol or other 

suitable solvent, in a 100 mL volumetric flask. Transfer to a 125 mL LDPE bottle or other 

suitable container. Prepare a separate solution for each analyte. Expiration dates and 

storage conditions of stock solutions should be assigned in accordance with laboratory 

standard operating procedure. An example of purity and salt correction is given below for 

PFOS.

moclecular salt of weight

molecular anion of weight factor correction salt =

9275.0

538

499 PFOS (K factor correction )salt == +

10 mg C8F17S03

-

K+ with purity 90% = 8.35 mg C8F17S03

– (10 mg*0.90*0.9275=8.35 mg)

10 μg/mL (10,000 ng/mL) mixed working standard—Add 5.0 mL each of the 100 μg/mL 

SSSs to a 50 mL volumetric flask and bring up to volume with solvent. 

1 μg/mL (1,000 ng/mL) mixed working standard—Add 0.5 mL of the 100 μg/mL SSSs to a 

50 mL volumetric flask and bring up to volume with solvent. 

0.1 μg/mL (100 ng/mL) mixed standard—Add 0.05 mL of the 100 μg/mL SSSs to a 50 mL 

volumetric flask and bring up to volume with solvent. 

Storage Conditions—Store all SSSs and working standards in accordance with laboratory 

standard operating procedure or in a refrigerator at 4°±2°C for a maximum period of 6 months 

from the date of preparation.

7.5 Calibration Standards

Calibration can be performed by IS or external calibration. Using the working standards 

described above, prepare calibration solutions in ASTM Type I water, HPLC water, other 

suitable water, or a mixture of solvent and water using the information in Table 2 as a 

guideline. Note: Volumes of water or water/solvent mixtures and working standards may be 

adjusted to meet the data quality objectives addressed in the general project outline. 

Calibration levels other than those listed below can be prepared as needed.

For the quantitation of PFOA and PFOS, reference materials of certified mixed linear and 

branched isomer are preferred. Alternately, reference materials of primarily linear isomers of 

PFOA and/or PFOS may be used, however, when quantitating with predominantly linear 

reference standards, additional LCS samples containing both linear and branched isomers of 

PFOA and PFOS are required3

. 

7.5.1 Internal Standard (IS) and Surrogate Recovery Standard (SRS) 

For IS calibration, stable isotope internal standards of each target analyte or appropriate 

surrogate ISs should be spiked at the same level in all calibration standards. Once the 

calibration standards have been prepared as stated above in Section 7.5, all calibration 

standards are spiked with a separate internal standard spiking solution. Typically the 

 

3 A report summarizing an assessment of the use of reference standards containing certified linear and branched isomers of 

PFOA/PFOS can be found in 3M report E11-0560.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

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concentration of the internal standard is consistent with the internal standard concentration 

expected in the samples being prepared, usually 1 ng/mL. The concentration of the internal 

standard spiking solution is typically 2 μg/mL. A separate zero point or method blank is 

typically prepared at the same time as the calibration standards, using the same solution 

used to prepare the standards (ASTM Type I water, HPLC water, other suitable water, or a 

solvent/water mixture), and is spiked with the internal standard at the same concentration as 

the calibration curve, typically at 1 ng/mL. 

If the samples being analzyed were pre-spiked with SRSs, the calibration curve prepared in 

Section 7.5 is spiked with a separate SRS spiking solution. Typically, the sample bottles are 

spiked with a SRS at 0.1 ng/mL. The final calibration curve must consist of at least six 

calibration points after analysis. The following table provides an example of spike 

concentrations and volumes used to achieve a multi-point extracted calibration curve with 

internal standard and surrogate standard.

Table 1 lists recommended stable isotope internal standards for several PFSA and PFCA 

target compounds. A custom mix of isotopically labeled target analytes in a methanolic 

solution containing ([1,2,3,4-

13C4]PFBA, [1,2 -13C2]PFHxA, [1,2,3,4,5,6,7,8-13C8]PFOA, 

[1,2,3,4,5,6,7,8,9-

13C9]PFNA, [1,2,3,4,5,6 -13C6]PFDA, [1,2,3,4,5,6,7 -13C7]PFUnA, [1,2 - 13C2]PFDoA, [1,2,3-

13C3]PFHS, [1,2,3,4,5,6,7,8-13C8]PFOS, and [1,2,3,4,5,6,7,8-13C8]FOSA 

(Wellington Laboratories, Guelph, ON) in combination with added ([1,2,3,4,5-

13C5]PFPeA, 

([1,2,3,4-

13C4]PFHpA, and [18O2]PFBS can be used to prepare a stock IS solution. 

Alternative sources of certified stable isotope labeled target analytes are applicable. 

Alternatively, individual stable isotope ISs can be used to prepare a stock IS mixture. The 

table below lists the recommended stable isotope ISs and SRSs applied in the method. 

Other stable isotope ISs and SRSs of target analytes not listed in the table may be used if 

supported by validation and/or analysis batch QCs meeting method acceptance criteria (e.g., 

[

13C2]-PFOA). The same internal standard should be used for a given analyte throughout the 

entire project/study. Note: some of the compounds listed below are appropriate to use as 

surrogate ISs when a stable isotope IS of a target analyte is not available. Generally, 

surrogate isotopically labeled PFCAs are used for PFCAs, and surrogate isotopically labeled 

PFSAs are used for PFSAs.

Table 2 provides examples of spike concentrations and volumes used to achieve a multi-point 

calibration curve with ISs and SRSs. 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; 

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Table 1. Stable Isotope PFCAs and PFSAs used for ISs and SRSs

Compound Name Synonym or Acronym Analytical Purpose Reference Standard 

Source

13C4-Perfluorobutanoic acid [1,2,3,4-13C4]PFBA IS for PFBA Wellington Labs 

(Mix or Individual)

13C4-Perfluoropentanoic acid [1,2,3,4,5-13C5]PFPeA IS for PFPeA Wellington Labs 

(Mix or Individual)

13C2-Perfluorohexanoic acid [1,2 -13C2]PFHxA IS for PFHxA Wellington Labs 

(Mix or Individual) 

13C4-Perfluoroheptanoic acid [1,2,3,4-13C4]PFHpA IS for PFHpA Wellington Labs 

(Mix or Individual)

13C8-Perfluorooctanoic acid [1,2,3,4,5,6,7,8-13C8]PFOA IS for PFOA and [1,2,3,4 13C4]PFOA

Wellington Labs 

(Mix or Individual)

13C9-Perfluorononanoic acid [1,2,3,4,5,6,7,8,9-13C9]PFNA IS for PFNA Wellington Labs 

(Mix or Individual)

13C6-Perfluorodecanoic acid [1,2,3,4,5,6 -13C6]PFDA IS for PFDA Wellington Labs 

(Mix or Individual)

13C7-Perfluoroundecanoic acid [1,2,3,4,5,6,7 -13C7]PFUnA IS for PFUnA Wellington Labs 

(Mix or Individual)

13C2-Perfluorododecanoic acid [1,2 -13C2]PFDoA IS for PFDoA, *PFTA Wellington Labs 

(Mix or Individual)

18O2-Ammonium Perfluorobutane sulfonate [18O2]PFBS IS for PFBS RTI International 

(Individual)

13C3-Ammonium Perfluorohexane sulfonate [1,2,3-13C3]PFHS IS for PFHS Wellington Labs 

(Mix or Individual)

13C8-Sodium Perfluorooctane sulfonate [1,2,3,4,5,6,7,8-13C8]PFOS IS for PFOS and 

PFOS[1,2,3,4 13C4], 

Wellington Labs 

(Mix or Individual)

13C8-Perfluorooctanesulfonamide [1,2,3,4,5,6,7,8-13C8]FOSA IS for FOSA

Wellington Labs (mix)

RTI International 

(Individual)

13C4-Perfluorooctanoic acid [1,2,3,4-13C4]PFOA SRS for all PFCAs: C4-C8 Wellington

13C2-Perfluoroundecanoic acid [1,2 -13C2]PFUnA SRS for all PFCAs C9-C13 Wellington

13C8-Perfluorooctane sulfonate [1,2,3,4-13C4]PFOS SRS for all PFSAs: C4, 

C6, and C8 Wellington 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection Analysis

Table 2. Example Preparation of Calibration Curve with ISs and SRSs

Sample Description Concentration 

of WS, μg/mL

Volume of 

WS, μL 

Volume of IS 

(2 μg/mL), μL 

Concentration of 

Surrogate, μg/mL

Volume of 

Surrogate, μL 

Volume of ASTM Type I Water, or 

other suitable solvent (1), mL

0.025 ng/mL curve point 0.10 25 50 0.20 12.5 100

0.030 ng/mL curve point 0.10 30 50 0.20 15 100

0.04 ng/mL curve point 0.10 40 50 0.20 20 100

0.05 ng/mL curve point 0.10 50 50 0.20 25 100

0.1 ng/mL curve point 0.10 100 50 0.20 50 100

0.25 ng/mL curve point 0.10 250 50 0.20 125 100

0.5 ng/mL curve point 1.0 50 50 0.20 250 100

1 ng/mL curve point 1.0 100 50 0.20 500 100

2.5 ng/mL curve point 10.0 25 50 10.0 25 100

5.0 ng/mL curve point 10.0 50 50 10.0 50 100

10.0 ng/mL curve point 10.0 100 50 10.0 100 100

25.0 ng/mL curve point 10.0 250 50 10.0 NA 100

50.0 ng/mL curve point 10.0 500 50 10.0 NA 100

75.0 ng/mL curve point 10.0 750 50 10.0 NA 100

100 ng/mL curve point 10.0 1000 50 10.0 NA 100

 

N/A - Not Applicable

(1) Samples requiring analysis for PFUnA, PFDoA, PFTrDA, and FOSA should be analyzed against a calibration curve prepared in 1:1 synthetic groundwater:MeOH.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

8 Sample Collection and Bottle Preparation

Sample collection bottles are prepared by 3M Environmental Laboratory (or subcontract supplier) personnel for 

shipment at ambient temperature to the collection site. Typically, four separate collection bottles are 

associated with a single collection site: sample, field duplicate sample, low field matrix spike, and high field 

matrix spike. Alternatively, the sample and field duplicate sample may contain SRSs in lieu of additional target 

analyte low field matrix spike and target analyte high field matrix spike samples. Depending on the scope of 

the project, additional replicates of the field sample and field matrix spikes may be added. Also, it is not 

uncommon for additional mid-level field matrix spikes to be collected if the expected sample concentrations are 

truly unknown or could span a large concentration range. 

High-density polyethylene (HDPE) wide-mouth Nalgene bottles are used for the sample collection containers. 

(Volumes of the bottles may vary depending on how much sample is required to meet data quality objectives.) 

Sample collection volumes are project specific and based on data quality objectives. The Nalgene bottles do 

not require any pretreatment prior to use. Typically, placement of a sample bottle volumetric “fill to here” line is 

done by using a sample bottle marker template. Alternatively, bottles may be weighed prior to bottle 

preparation and weighed again after samples have been collected.

All bottles should be clearly labeled to indicate its intended use as a sample, field sample duplicate, low field 

matrix spike, high field matrix spike, sample/SRS field matrix spike, field duplicate sample/SRS field matrix 

spike, trip blank, or trip blank matrix spike. If each location has different designated spike levels, the label 

should also clearly indicate the sample location designation. Generally, a set of bottles for a given collection 

site are prepared then grouped together in plastic bags for organizational purposes. For each sample 

collection event, at least one set of trip blank and trip blank matrix spikes are prepared. 

Bottle preparation should be documented in a Note to File or on a sample preparation worksheet and should 

include the following information: date prepared, total number of bottles prepared, number of sample sites, the 

standard identification numbers and spike volumes used to prepare spiked bottles, the “fill to here” volume, and 

any other pertinent information needed for reconstructibility of the data. The Note to File will be included in the 

final data package for the project. 

Samples are collected in the field and shipped to the laboratory at ambient temperature.

8.1 Field Matrix Spike Sample (FMS)

Field matrix spike samples are a requirement of the method. A FMS sample is defined as a QC sample to 

which known quantities of appropriate target analytes are added to the sample bottle in the field or in the 

laboratory before the bottles are sent to the field. The sample and field duplicate sample may contain 

appropriate SRSs in lieu of target analyte FMS samples. Sample quantities are determined volumetrically or 

gravimetrically. A known, specific volume or weight of sample is added to the sample container without

rinsing. Volumetric sample measurements may be acquired by a laboratory applied “fill to this level” line on the 

outside of the sample container. Target analyte FMS samples should be spiked at approximately 0.5-10 times 

the expected analyte concentration in the sample. If the expected range of analyte concentrations is unknown, 

multiple spikes at varying levels may be prepared to increase the likelihood that a spike at an appropriate level 

is made. Typically a low and a high target analyte spike are prepared for each sampling location. In those 

instances where SRSs are to be used in lieu of target analyte FMS samples, the sample and field duplicate 

sample are spiked at approximately 2-5 times the target LOQ. The FMS is analyzed to ascertain if matrix 

effects or sample holding time contributes bias to the analytical results. For the sample bottles designated for 

matrix spikes, an appropriate volume of matrix spiking solution is added to the empty bottle prior to sampling. 

The volume of spike solution added should produce the desired final concentration of target analytes once the 

bottle is filled with sample to the “fill to here line”. The matrix spiking solution(s) should be prepared in a 

suitable solvent and contain all of the appropriate target analytes, ISs, and SRSs. The target analyte matrix 

spiking solution is often the same as the working standards used to create the calibration standards. An 

example of a bottle spike is given below.

“Fill to here” volume = 200 mL (A 250 mL Nalgene bottle is used)

Desired Field Spike Concentration = 0.25 ng/mL

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

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500 μL of a 0.1 μg/mL spiking solution (containing the target analytes) is added to the bottle and the bottle cap 

promptly sealed.

8.2 Internal Standard and Surrogate Recovery Standard 

If analysis of a surrogate recovery standard (SRS) is included in the project objectives, an appropriate volume 

of a surrogate standard solution is added to all the bottles prior to sampling and SPE. Typically sample bottles 

are spiked with surrogate recovery standards at a final desired spike concentration of 0.1 ng/mL.

If quantitation by internal standard (IS) is included in the project objective, an appropriate volume of internal 

standard solution is added to all the bottles prior to sampling and SPE. Typically sample bottles are spiked 

with internal standard at a final desired spike concentration of 1 ng/mL.

For the trip blank, the SRS spike and IS spike is added to the bottle and then ASTM Type I water (HPLC grade 

reagent water or other suitable water may used) is added to the “fill to here” line. The bottle is capped and 

sealing tape may be placed around the outer edge of the cap. Trip blank matrix spikes are prepared by adding 

the appropriate volume of target analyte spiking solution, IS, and SRS spiking solutions and filling the bottle to 

the desired volume with the appropriate water and capping and sealing the cap.

9 Quality Control and Data Quality Objectives

9.1 Data Quality Objectives

This method and required quality control samples is designed to generate data accurate to ±30% with a 

targeted LOQ of 0.025 ng/mL. Any deviations from the quality control measures spelled out below will be 

documented in the raw data and footnoted in the final report.

9.2 Method/Procedural Blanks

The method/procedural blank is zero point calibration standard (which includes ISs) analyzed in a regular basis 

with each analysis batch. At a minimum, method blanks are analyzed prior to instrument calibration, prior to 

the analysis of CCV samples, after every 10 sample injections, and at the end of the analytical run.

The mean area count or area ratios when using internal standard calibration, for each analyte in the method 

blanks must be less than 50% of the area count counts or area ratios when using internal standard calibration, 

of the LOQ standard. The standard deviation of the area counts, or area ratios when using internal standard 

calibration, of these method blanks should be calculated. A specific %RSD acceptance criteria is not specified 

but is assessed on an analytical batch basis. If the mean area counts or area ratios when using internal 

standard calibration, of the method blanks exceed 50% of the LOQ standard, then the LOQ must be raised to 

the first standard level in the curve that meets criteria. Method blanks may be eliminated if technical 

justification can be provided (e.g. the procedural blank was analyzed after an unexpectedly high level sample). 

If any procedural blanks are removed from the LOQ determination, document in the raw data and report as 

appropriate. Laboratory Sample Replicates / Field Duplicate Sample 

Typically, samples are collected in duplicates in the field. The relative percent difference (RPD) of duplicate 

samples should be ≤20% for the precision of sample preparation and analysis to be considered in control. 

Replicate samples not meeting the ≤20% RPD criteria are flagged and reported as outside of QC acceptance 

criteria.

9.3 Laboratory Matrix Spikes (LMSs)

LMSs may be performed in lieu of FMSs if FMSs have previously been performed for the sample matrix. 

Additionally, LMSs may be performed in lieu of FMSs for a sample matrix if the FMS levels were not 

appropriate for determining spike recoveries relative to endogenous levels of target analytes and appropriate 

SRSs. Generally, each sample location represents a different sample and sample matrix. LMSs are prepared 

for each sample and analyzed to determine the matrix effect on spike recovery efficiency of each target analyte 

and appropriate SRSs. LMSs should be prepared at a minimum of one level and in duplicate. LMS 

concentrations should be prepared at approximately 0.5-10 times the endogenous concentration or 

approximately 4-10 times the LOQ concentration of each target analyte. 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

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Lab matrix spike recoveries should fall within ± 30% of expected values. Sample data with LMS recovery 

outside of ±30% but within ±50% of the expected value are flagged and reported as outside of QC acceptance 

criteria. Data with LMS recovery outside of ±50% of the expected value are reported as NR, where NR is 

defined as “Not Reportable” data outside of QC acceptance criteria.

9.4 Lab Control Sample

Lab control spikes are prepared for each analysis batch to determine method accuracy and precision. LCSs 

should be prepared at three levels in triplicate for each target analyte and at a minimum of two levels in 

triplicate for appropriate SRSs. Low lab control spikes should be prepared at a concentration in the range of 

approximately four to ten times higher than the targeted lower LOQ, the mid lab control spikes should be 

prepared at a concentration near the mid-point of the calibration curve and the high lab control spikes at 

approximately 80% of the upper LOQ. For each target analyte and SRSs, the percent relative standard 

deviation (method precision) for each control spike level must be less than or equal to 20% and the average 

recovery (method accuracy) for each control spike level must be 80-120%. Sample data for target analytes 

outside of the laboratory control spike acceptance criteria will be handled as follows:

If the average recovery of a spiking level falls outside method acceptance, but at least 67% (6 out of 9) of LCS 

samples are within 20% of their respective nominal value (33% of the QC samples, not all replicates at the 

same concentration, may be outside 20% of nominal value), the average recovery will be flagged as outside 

method acceptance criteria. All LCS samples will be control charted as per ETS-4-026. If the average 

recovery of one of the spiking levels exceeded the analytical method uncertainty as determined by ETS-12-

012, that analytical batch uncertainty will be expanded for that particular study.

If more than 67% of the LCS samples fail to meet method acceptance criteria, the data will not be reported. 

Calibration standards consisting of mixed branched and linear isomer PFOS/PFOA are preferred. However, 

for PFOS/PFOA target analytes, if the calibration standards are comprised of predominantly linear isomers 

only, at least one level of triplicate LCSs should be prepared using PFOS/PFOA which contains a mix of linear 

and branched isomers. These LCSs will be used to demonstrate quantitative equivalency (or quantitative bias) 

of the isomeric mix when using a predominantly linear standard for calibration. The mixed linear and branched 

isomer PFOS/PFOA LCSs recoveries should fall within ± 30% of expected values. Alternatively, in lieu of 

mixed branched and linear isomer PFOS/PFOA LCSs, mixed branched and linear isomer PFOS/PFOA 

TBMSs may be applied to demonstrate method accuracy and precision.

9.5 Field Matrix Spikes (FMSs) / Surrogate Recovery Standards (SRSs)

FMSs are prepared for each sampling location and analyzed to determine the matrix effect and sample holding 

time on the spike recovery of each target analyte and/or appropriate SRS. Generally, each sample location 

represents a different sample and sample matrix. 

FMSs are QC samples to which known quantities of appropriate target analytes are added to the sample bottle 

in the laboratory before the bottles are sent to the field. Typically a low and a high target analyte FMS are 

prepared for each sampling location. The sample and field duplicate sample may contain appropriate SRSs in 

lieu of target analyte low field matrix spike and target analyte high field matrix spike samples. 

Field matrix spike method acceptance criteria are recoveries within ±30% of the expected value. If FMS 

recovery (target analyte or SRS spike) is outside of ±30% of the expected value or could not be assessed 

because the FMS (target analyte) was spiked at an inappropriate level, the sample result is reported as follows: 

1.) If target analyte FMS recovery could not be assessed because the FMS's were at an inappropriate level, 

then Laboratory Matrix Spikes (LMS) may be substituted. If LMS recoveries are within ±30% the data are 

reportable and flagged to indicate that the FMS spikes levels were inappropriate.

2.) If multiple target analyte FMS's were prepared on a sample and the closest FMS level to the reported 

sample meets the ±30% acceptance criteria but additional FMS's are outside the ±30% acceptance range, the 

data are reportable and flagged to indicate that while there were failing FMS’s, the uncertainty will not be 

expanded since the most appropriate spike level passed. 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

3.) If the target analyte FMS recoveries are outside of the ±30% acceptance range but at least 30 acceptable 

historical reportable FMS sample results are available, the data may be reported but flagged with an expanded 

uncertainty and as not meeting FMS criteria.

4.) Sample data with FMS recovery outside of ±30% but within ±50% of the expected value are flagged and 

reported as outside of QC acceptance criteria with an expanded uncertainty.

5.) If FMS recovery is outside of ±50%, the sample result is reported as NR, where NR is defined as “Not 

Reportable” due to noncompliant QC results. 

The targeted fortification levels should be at least 50% of the endogenous level and less than 10 times the 

endogenous level to be used without justification to determine the statement of accuracy for analytical results.

Note: It is possible for bottles utilized for Field Matrix Spike samples to be under-filled or over-filled during 

sample collection. Since this scenario will effect the actual concentration of the FMS sample (surrogate and 

internal standard concentrations will also be effected, if used), it is important that any obvious under-filling or 

over-filling of sample bottles be documented in the data package and taken into account in the FMS, ISs, or 

SRSs recovery calculations. Samples over-filled or under-filled by more than 10% will be require recalculation 

of the FMS, ISs, and SRS true values.

The average of the sample and the field duplicate should be used to calculate the recovery.

10 Procedures

10.1 Water Sample Preparation

This method is applicable to water samples. Samples containing heavy particulate may not be suitable for 

analysis by this method. Samples containing suspended particulate should be centrifuge prior to removing a 

sample aliquot, or filtered. 

• Thoroughly mix sample before removing an aliquot and placing in a labeled autovial. 

• Dilute sample, if necessary, with ASTM Type I water, HPLC water, other suitable water, or solvent 

(methanol). 

• Lab control spikes are prepared for each analysis batch to determine method accuracy and precision. 

LCSs should be prepared at three levels in triplicate for each target analyte and at a minimum of two 

levels in triplicate for appropriate SRSs. Low lab control spikes should be prepared at a concentration 

in the range of approximately four to ten times higher than the targeted lower LOQ, the mid lab control 

spikes should be prepared at a concentration near the mid-point of the calibration curve and the high

lab control spikes at approximately 80% of the upper LOQ. For IS quantitation, stable isotope internal 

standards of each target analyte or appropriate surrogate ISs should be spiked at the same level as the 

samples being analyzed, in all LCSs. 

• If LCSs are being prepared using synthetic groundwater, allow the LCSs samples to equilibrate for a 

minimum of 4 hours before aliquoting for analysis or diluting with solvent (methanol).

11 Sample Analysis - LC/MS/MS

11.1 Instrument Setup

Note: In this example, an Applied Biosystems Sciex API 4000 (API 5000 or API 5500) Tandem Mass 

Spectrometer (LC/MS/MS) is used. Other brands/models of LC/MS/MS instruments as well as single 

quadrupole mass spectrometers (LC/MS) may be used as long as the method acceptance criteria are met. 

Brand names, suppliers, part numbers, and models are for illustrative purposes only. Equivalent performance 

may be achieved using apparatus and materials other than those specified here, but demonstration of 

equivalent performance that meets the requirements of this method is the responsibility of the laboratory. The 

operator must optimize and document the equipment and settings used.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

Establish the LC/MS/MS system and operating conditions equivalent to the following:

Mass Spec: Applied Biosystems API 4000, API 5000, or API 5500

Ion Source: Turbo Ion Spray (ABS)

Mode: Electrospray Negative

Scan Type: MRM (Multiple Reaction Monitoring) 

Computer: Dell DHM

Software: Windows 2000 or Windows XP, Analyst 1.4.2 or higher versions

HPLC: Agilent Series 1100,1200, or 1290

Agilent Quaternary Pump

Agilent Vacuum Degasser

Agilent Autosampler

Agilent Column Oven

Note: One or more C18 HPLC analytical columns (2.1 mm x 100 mm, 5μm or 2.1 mm x 50 mm, 5μm) may be 

attached on-line after the purge valve and before the sample injection port to retard and separate any residue 

contaminants that may be in the mobile phase and/or HPLC system.

HPLC Column: Betasil C18, 4.6mm x 100mm, 5μm (ThermoElectron Corporation)

Column Temperature: 35°C 

Injection Volume: 5μL

Mobile Phase (A): 2mM Ammonium Acetate in ASTM Type I water (See 7.3)

Mobile Phase (B): Methanol

Table 3. Liquid Chromatography Gradient Program. 

Step 

Number

Total Time 

(min)

Flow Rate 

(μL/min)

Percent A

(2 mM ammonium 

acetate)

Percent B

(Methanol)

0 0 750 97.0 3.0

1 2.0 750 97.0 3.0

2 14.5 750 5.0 95.0

3 15.5 750 5.0 95.0

4 16.5 750 97.0 3.0

5 20.0 750 97.0 3.0

Note: Other HPLC gradients may be used as long as the method criteria and project data quality objectives are 

met.

It may be necessary to adjust the HPLC gradient in order to optimize instrument performance. Columns with 

different dimensions (e.g. 2.1mm x 30mm) and columns from different manufacturers (Keystone Betasil C18 

etc.) may be used.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

Table 4 Suggested MRM Transitions for Target Analytes, Surrogates, and Internal Standards

Analyte Analyte Description Mass Transition

Q1 (amu)

Mass Transition

Q3 (amu)

PFBA (C4 Acid) Target 213 169

PFPeA (C5 Acid) Target 263 219

PFHxA (C6 Acid) Target 313 269, 119

PFHpA (C7 Acid) Target 363 319, 169

PFOA (C8 Acid) Target 413 369, 219, 169

PFNA (C9 Acid) Target

463 419, 169, 219

PFDA (C10 Acid) Target 513 469, 269, 219

PFUnA (C11 Acid) Target 563 519, 269, 219

PFDoA (C12 Acid) Target 613 569, 169, 319

PFTA (C13 Acid) Target 663 619, 369, 319

FBSA (C4 Sulfonamide) Target 298 78

FOSA (C8 Sulfonamide) Target 498 78

PFBS (C4 Sulfonate) Target 299 99, 80

PFHS (C6 Sulfonate) Target 399 99, 80

PFOS (C8 Sulfonate) Target 499 80, 99, 130

[1,2,3,4 -

13C4]PFBA IS for PFBA 217 172

[1,2,3,4,5 -

13C5]PFPeA IS for PFPeA 268 223

[1,2 -

13C2]PFHxA IS for PFHxA 315 270

[1,2,3,4- 13C4]PFHpA IS for PFHpA 367 322

[1,2,3,4,5,6,7,8-

13C8]PFOA IS for PFOA 421 376

[1,2,3,4,5,6,7,8,9-

13C9]PFNA IS for PFNA 472 427

[1,2,3,4,5,6 -

13C6]PFDA IS for PFDA 519 474

[1,2,3,4,5,6,7 -

13C7]PFUnA IS for PFUnA 570 525

[1,2 -

13C2]PFDoA IS for PFDoA and PFTA 615 570

[

18O2]PFBS IS for PFBS 303 84

[1,2,3-

13C3]PFHS IS for PFHS 402 80

[1,2,3,4- 13C4]PFOS IS for PFOS 503 80

[1,2,3,4,5,6,7,8-

13C8]FOSA IS for FOSA 507 80

[1,2,3,4-

13C4]PFOA Surrogate (C4-C8 Acids) 417 372

[1,2,3,4- 13C4]PFOS Surrogate(Sulfonates, FOSA) 503 80

[1,2 -

13C2]PFUnA Surrogate (C9-C13 Acids) 565 520

Multiple transitions for monitoring the analytes is an option. The use of one daughter ion is acceptable if data 

sensitivity and selectivity is achieved and provided that retention time criteria are met to assure adequate 

specificity. While the daughter ions may be chosen at the discretion of the analyst, mass transition 99 is 

suggested for PFOS. Quantitation may be performed using the total ion chromatogram (TIC, or summed 

MRMs) for a given analyte. For example, the PFOA TIC would sum all three of the monitored transitions. Use 

of the suggested primary ion is recommended. Retention times may vary slightly, on a day-to-day basis, 

depending on the batch of mobile phase and the gradient, column, guard column(s) used etc. Drift in retention 

times is acceptable within an analytical run, as long as the drift continues through the entire analysis and the 

standards are interspersed throughout the analytical run.

11.2 Calibration Curve

Quantitation is by internal standard or external standard calibration. Calibration standards may be prepared in 

ASTM Type I, HPLC water, other suitable water, or a solvent/water mixture. If internal standard calibration 

does not meet calibration acceptance criteria, external calibration can be applied. See Table 1 for 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

recommended application of available internal standards. Quantitation of PFOA and PFOS is by summed 

analyte-specific mass transitions. 

Analyze the standard curve prior to each set of samples. If internal standards were added to the calibration 

standards area ratios are used to generate the calibration curve. The standard curve may be plotted using a 

linear regression (y = mx + b), weighted 1/x or unweighted, or by quadratic fit (y = ax2 + bx + c), weighted 1/x or 

unweighted, using suitable software. The mathematical method used to calculate the calibration curve should 

be applied consistently throughout a study. Any change should be thoroughly documented in the raw data.

High and/or low points may be excluded from the calibration curves to provide a better fit over the range 

appropriate to the data or because they did not meet the pre-determined acceptance criteria. Low-level curve 

points should also be excluded if their area counts (or area ratio if quantitating by IS) are not at least twice that 

of the average area counts (or area ratio if quantitating by IS) of method and/or solvent blanks. The coefficient 

of determination (r2

) value for the calibration curve must be greater than or equal to 0.990 (or a correlation 

coefficient (r) of 0.995). Each point in the curve must be within ±25% of the theoretical concentration with the 

exception of the LLOQ, which may be within ±30%. Justification for exclusion of calibration curve points will be 

noted in the raw data. A minimum of 6 points will be used to construct the calibration curve. 

If the calibration curve does not meet acceptance criteria, perform routine maintenance or prepare a new 

standard curve (if necessary) and reanalyze. 

11.3 Continuing Calibration Verification (CCV)

Continuing calibration verifications (CCV) are analyzed to verify the accuracy of the calibration curve. Analyze 

a mid-range calibration standard, one of the same standards used to construct the calibration curve, at a 

minimum after every tenth sample, not including solvent blanks, with a minimum of one per sample set. 

Calibration verification injections must be within ±25% to be considered acceptable. The calibration curve and 

the last passing CCV will then bracket acceptable samples. Multiple CCV levels may be used. Samples must 

be bracketed by passing CCVs or the calibration curve and a passing CCV to be reportable.

11.4 System Suitability

A minimum of three system suitability samples should be injected at the beginning of each analytical run, prior 

to the analysis of the calibration curve. Typically these samples are at a concentration near the mid-level of the 

calibration curve and are repeated injections from one autosampler vial. It is suggested that the system 

suitability injections have area counts or area ratios when using internal standard calibration, with a target RSD 

of ≤5% and a target retention time RSD of ≤2%. There is no defined acceptability limit on these results as the 

%RSD value is dependent on the number of MRM transitions being monitored in the LC/MS/MS run or time 

period. Ultimately, any effects on these parameters for the System Suitability samples will also be evident on 

all standards and QC samples analyzed as part of the analysis batch. Any effect of system suitability is 

incorporated within QC acceptance criteria.4

11.5 Sample Analysis and QCs

For each analysis batch, the instrument analysis run sequence should include an initial calibration curve, 

samples, FDSs, interspersed blanks, interspersed CCVs, appropriate QCs (i.e., LCSs, LMSs, FMSs, TBMSs, 

and TBs), and a final CCV or calibration curve bracketing samples and appropriate QCs

Inject the same volume (between 5 - 100μL) of each standard, analytical sample and blank into the instrument 

(unless an on-instrument sample dilution is desired).

Samples containing analytes that are quantitated above the concentration of the highest standard in the curve 

should be further diluted and reanalyzed. 

 

4 3M Environmental Laboratory study E08-0096 evaluated the effect on these results as a function of the number of MRMs being monitored. 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

12 Data Analysis and Calculations

The chromatography analysis software will typically calculate the amount of target analyte in the sample 

extracts using the established calibration curve.

Calculate the percent recovery of the LCS using the following equation:

100%*

) mL

ng Concentrat Spike (ion 

) mL

ng LCSConcentrat (ion 

LCS% recovery =

 

Calculate the percent recovery of the LMS using the following equation:

100%*

) mL

ng Spike Concentrat ( ion

) mL

ng -) Concentrat ( Sample of ion mLng LMS Concentrat ( ion

LMS recovery % =

For samples fortified with known amounts of analyte prior to extraction, use the following equation to calculate 

the percent recovery.

100 

(ng/mL) added Analyte

(ng/mL) sample in found analyte Average- (ng/mL) found analyte Total Recovery = ×

13 Analysis Batch Method Performance Criteria

Any method performance parameters that are not achieved must be considered in the evaluation of the data. 

Nonconformance to any specified parameters must be described and discussed in the final report if the 

Technical Manager (non-GLP study) or Study Director (GLP study) chooses to report the data.

If criteria listed in this method performance section are not met, maintenance may be performed on the system 

and samples reanalyzed, or other actions taken as appropriate. Document all actions in the raw data.

If data are to be reported when performance criteria have not been met, the data must be footnoted on tables 

and discussed in the text of the report.

13.1 System Suitability – Analysis Batch

A minimum of three system suitability samples should be injected at the beginning of each analytical run. 

These samples are run prior to the calibration curve. It is suggested that the system suitability injections have 

area counts with a target RSD of ≤5% and a target retention time RSD of ≤2%. There is no defined 

acceptability limit on these results as the %RSDs are dependent on the number of MRM transitions being 

monitored in the LC/MS/MS run or time period. Any effect of system suitability is incorporated in the QC 

acceptance criteria.

13.2 Calibration and Limit of Quantitation (LOQ) – Analysis Batch

Calibration Curve: The coefficient of determination (r2) value for the calibration curve must be greater than or 

equal to 0.990 corresponding to a correlation coefficient (r) = 0.995. Each point in the curve must be within 

±25% of the theoretical concentration with the exception of the LLOQ, which may be within ±30%. 

CCV Performance: The calibration standards that are interspersed throughout the analytical sequence are 

evaluated as continuing calibration verifications in addition to being part of the calibration curve. The accuracy 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

of each curve point must be within 25% of the theoretical value (within 30% for lowest curve point). Samples 

that are bracketed by CCVs not meeting these criteria must be reanalyzed.

Limits of Quantitation (LOQ): The lower LOQ (LLOQ) is the lowest non-zero active standard in the 

calibration curve; the peak area of the LLOQ must be at least 2X that of the average area counts for all 

prepared procedural blank(s). By definition, the measured value of the LLOQ must be within 30% of the 

theoretical value.

Demonstration of Specificity: Specificity is demonstrated by chromatographic retention time (within 4% of 

standard) and the mass spectral response of unique ions.

13.3 Blanks – Method/Procedural Blanks and Trip

Method/Procedural Blanks: Multiple procedural blanks should be interspersed throughout the analysis batch 

and the analytical sequence. At a minimum, method blanks are analyzed prior to instrument calibration, prior 

to the analysis of CCV samples, after every 10 sample injections, and at the end of the analytical run. 

The mean area counts (or area ratios when using IS calibration) for each analyte must be less than 50% of the 

area count of the LOQ standard. If the area counts of the procedural blanks exceed 50% of the LOQ standard, 

then the LOQ must be raised to the first standard level that meets criteria.

Trip Blank: A trip blank of ASTM Type I water (or lab equivalent) is prepared in a sample container in the 

laboratory and treated as a sample, including exposure to shipping, sampling site conditions, storage, 

preservation and all analytical procedures. The trip blanks results for each analyte are included with the 

reported sample results. 

13.4 Data Accuracy and Precision – Analysis Batch

Lab Control Spikes: The average recovery at each LCS level for each target analyte and appropriate SRS 

should be within 80-120% and the percent relative standard deviation of the recoveries must be less than or 

equal to 20%. If the average recovery of a spiking level falls outside method acceptance, but at least 67% (6

out of 9) of LCS samples are within 20% of their respective nominal value (33% of the QC samples, not all 

replicates at the same concentration, may be outside 20% of nominal value), the average recovery will be 

flagged as outside method acceptance criteria. All LCS samples will be control charted as per ETS-12-012. If 

the average recovery of one of the spiking levels exceeded the analytical method uncertainty as determined by 

ETS-12-012, that analytical batch uncertainty will be expanded for that particular study. The average recovery 

at each LCS level for mixed branched/linear isomer PFOA and PFOS should be within 70-130% and the 

percent relative standard deviation of the recoveries must be less than or equal to 20%. 

Field Duplicates: The relative percent difference (RPD) of duplicate samples should be less than 20% for the 

precision of sample preparation and analysis to be considered in control. Replicate samples not meeting the 

20% RPD criteria are flagged and reported as outside of QC acceptance criteria.

Field Matrix Spikes: FMS acceptance criteria are recoveries within ±30% of the expected value for each 

target analyte and appropriate SRS. Sample data with FMS recovery outside of ±30% but within ±50% of the 

expected value are flagged and reported as outside of QC acceptance criteria. Data with FMS recovery 

outside of ±50% of the expected value are reported as NR, where NR is defined as “Not Reportable” data 

outside of QC acceptance criteria. If FMS recovery could not be assessed because FMSs were at an 

inappropriate level, then Laboratory Matrix Spikes (LMSs) may be substituted. If LMS recoveries are within 

±30% for each target analyte and SRSs the data are reportable but flagged as not meeting the FMS method 

acceptance criteria.

13.5 Analytical Method Uncertainty

Analytical method uncertainty for each target analyte and SRS is determined with control charted historical 

analysis batch LCS data for the method and reported with each analysis batch.5

 Uncertainty determinations 

 

5 Method uncertainty based on INTERNATIONAL ANS/ISO/IED STANDARD 17025 reference (GUM, Guide to the Expression of 

Uncertainty in Measurement). Method application demonstrated in ETS-12-012, citing references: a.) EURACHEM/CITAC Guide, 

“Quantifying Uncertainty in Analytical Measurement,” Second Edition; Editors: S.L.R. Ellison, M. Rosslein, and A. Williams. 

b.)Georgian, Thomas, “Estimation of Laboratory Analytical Uncertainty Using Laboratory Control Samples,” Environmental Testing & 

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

are based on INTERNATIONAL ANS/ISO/IED STANDARD 17025 reference (GUM, Guide to the Expression 

of Uncertainty in Measurement) and described in ETS-12-012. At least thirty data points are required for 

determining analytical method uncertainty. The method uncertainty is defined as 2x the standard deviation of 

the percent recoveries of the pooled lab control spikes. While all LCS data points are control charted, only the 

most recent fifty data points are used for determining the method uncertainty.

When less than thirty LCS data points have been generated for a given analyte, the analysis batch LCSs are 

used to determine the data uncertainty. If FMSs meet the ±30% recovery criteria at a level appropriate to the 

endogenous level, and the LCS meet the ±20% recovery criteria, then the uncertainty of the data is determined 

as within 100±20%. 

Analysis batch sample data with FMS recovery outside of ±30% but within ±50% of the expected value are 

flagged and reported as outside of QC acceptance criteria with expanded uncertainties. Data with FMS 

recovery outside of ±50% of the expected value are reported as NR, where NR is defined as “Not Reportable” 

data outside of QC acceptance criteria. If FMS recovery could not be assessed because FMSs were at an 

inappropriate level, then Laboratory Matrix Spikes (LMSs) may be substituted. If LMS recoveries are within 

±30% for each target analyte and appropriate SRSs the data are reportable but flagged as not meeting the 

FMS method acceptance criteria with uncertainties of ±30%. If FMS do not meet the ±30% recovery criteria, 

and historical FMS data does not exist, the analytical uncertainty is evaluated on a sample-by-sample basis, 

the data may be reported with expanded uncertainty and are flagged. 

13.6 Quantitation of PFOA/PFOS – Analysis Batch

Calibration standards consisting of mixed branched and linear isomer PFOS/PFOA are preferred. 

Quantitation is performed by integrating the linear and branched isomers together. Alternately, the linear and 

branched isomers can be integrated separately, applying the appropriate true value to each calibration curve 

point for each isomer. The LCS and samples are then quantitated by integrating the linear and branched 

isomers separately (requires separate analytical results files) and quantitating the resulting peak against the 

linear or branched calibration curve. The results from both integrations are then summed to produce the final 

result. Integrating the linear and branched isomers separately may be helpful for those samples where the 

linear/branched ratios do not closely match those of the reference standards.

However, for PFOS/PFOA target analytes, if the calibration standards are comprised of predominantly linear 

isomers only the method requires the addition of LCSs of mixed branched/linear isomer PFOS/PFOA. The 

purpose of including these LCSs is to demonstrate quantitative equivalency (or quantitative bias) of the 

isomeric mix when using a predominantly linear PFOS or PFOA standard for calibration. Alternatively, in lieu 

of mixed branched and linear isomer PFOS/PFOA LCSs, mixed branched and linear isomer PFOS/PFOA 

TBMSs may be applied to demonstrate method accuracy and precision.

An alternate method of quantitation can be performed whereby only the linear isomer of PFOS/PFOA is 

integrated and used for generating the calibration curve. The LCS and samples are then quantitated by 

integrating the linear and branched isomers separately (requires separate analytical results files) and 

quantitating the resulting peak against the linear calibration curve. The results from both integrations are then 

summed to produce the final result. Integrating the linear and branched isomers separately reduces the oncolumn concentration for those samples that contain both linear and branched isomers of PFOA/PFOS. This 

ensures that the concentration detected is within the a range of the calibration curve that is comparable 

regardless of whether the calibration curve was generated using predominantly linear isomers of PFOS/PFOA 

or linear plus branched isomers of PFOS/PFOA.

14 Pollution Prevention and Waste Management

Waste generated when performing this method will be disposed of appropriately. The original samples will be 

archived at the 3M Environmental Laboratory in accordance with internal procedures.

 

Analysis, November/December 2000. c.)Taylor, B.N. and CE. Kuyatt, NIST Technical Note 1297, 1994 Edition: “Guidelines for 

Evaluating and Expressing the Uncertainty of NIST Measurement Results.”d.)Adams, T.M., “A2LA Guide for the Estimation of 

Measurement Uncertainty in Testing”, July 2002.

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Method of Analysis for the Determination of Perfluorinated Compounds in Water by LC/MS/MS; Direct Injection 

Analysis

15 Records

Each data package generated for a study must include all supporting information for reconstruction of the data. 

Information for the data package must include, but is not limited to the following items: study or project 

number, sample and standard prep sheets/records, instrument run log (instrument batch records, instrument 

acquisition method, summary pages), instrument results files, chromatograms, calibration curves, and data 

calculations.

16 Affected Documents

None.

17 Revisions

Revision 

Number Summary of Changes 

1 Section 1. Included the use of internal standard calibration by this method. 

Section 2. Included the use of internal standard calibration by this method. Included the 

use of a solvent/water mixture when analyzing for PFUnA, PFDoA, PFTrDA, and FOSA.

Section 3. Added definitions for internal standard, surrogate internal standard, and 

surrogate recovery standard.

Section 6.Removed the details regarding the instrument parameters to section 10 of the 

method. 

Section 7. Updated reference standards to include internal standards and surrogates. 

Changed concentration levels for working standards and included the use of internal 

standards and surrogates.

Section 8. Inserted a new section on sample bottle preparation.

Section 9 Quality Control. This section was previously section 10 in ETS-8-044.0. Updated 

QC criteria to be consistent with method ETS-8-154.4.

Section 10 Procedures. This section was previously section 8 (Sample Handling) in ETS-8-

044.0. Added detail regarding the preparation of LCSs. Included the use of methanol as a 

dilution solvent. 

Section 11 Sample Analysis. This section was previously section 10 in ETS-8-044.0. 

Included the details regarding the instrument parameters. 

Section 12 Data Analysis and Calculations. This section was previously section 11 in ETS8-044.0. Removed the equation for calculating the analytes concentration, indicating that 

this is done by the instrument software.

Section 13 Method Performance. This section was previously section 12 in ETS-8-044.0. 

Updated QC criteria to be consistent with ETS-8-154.4. Added information on the 

determination of analytical method uncertainty and quantitation of PFOA/PFOS.

Section 14 Pollution Prevention. This section was previously section 13 in ETS-8-044.0.

Section 15 Records. This section was previously section 14 in ETS-8-044.0. 

Section 16 Affected Documents. This section was previously section 15 in ETS-8-044.0.

Section 17 Revisions. This section was previously section 16 in ETS-8-044.0. 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

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ATTACHMENT D: DEVIATION(S) 

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

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RECORD OF DEVIATION/NONCONFORMANCE

ETS-4-008.7

Documentation of Deviations and Control of Nonconforming Testing

Page 1 of 1

I. Identification

Study / Project No.

GLP10-01-02-29

Date(s) of Occurrence:

4/23/12

Document Number:

ETS-8-044.1

Deviation type  SOP  Equipment Procedure  Method

(Check one)  Protocol  GPO  Other:

II. Description (attach extra pages as needed)

Method Requirements:

1. CCV recovery within ±25% (section 13.4).

2. LCS recovery within ±20% (section 13.4). 

3. RPD values ≤20% (section 13.4).

Actual procedure/process:

1. The 0.5 ng/mL CCV (sample b120423a036) had a recovery of 71.8% for PFOS surrogate (b120423a 

external).

2. The 2ppb LCSs had an overall average recovery of 122% for PFOS and PFOS surrogate (b120423a 

external).

3. The sampling location DAL GW 605R had a sample/sample duplicate RPD of 29% for PFOS; DAL GW 

609L had a RPD of 33% for PFHS; DAL GW MW13B had a sample/sample duplicate RPD of 49% for 

PFOS.

III. Actions Taken

(such as amendment issued, SOP revision, etc.)

Corrective Action ( Yes  No) Reference:

Acceptability of the nonconforming work:

1. The non-compliant CCV for PFOS surrogate will be flagged in the final report.

2. The non-compliant LCSs will be flagged in the final report. Since the overall method uncertainty for PFOS 

using external calibration was calculated to be ±38% following ETS-12-012.2, the method uncertainty will 

not be expanded further.

3. The non-compliant RPDs will be flagged in the final report.

Actions:  Halting of Work  Client Notification  Work Recall  Withholding of Report

 Other: Deviations will be noted in final report.

Project Lead/PAI Approval: Date:

Study Director (if GLP): Date:

Sponsor Approval (for GLP protocol deviations): NA Date: NA

Technical Reviewer (optional): NA Date: NA

Laboratory Department Manager Approval: Date:

IV. Authorization to Resume Work

Where halting of work occurred, resumption of work must first be approved by Laboratory Management

Laboratory Department Manager Approval: NA Date: NA

Deviation No. ______________

(assigned by Study Director or Team Leader at the end of study or project)

GLP10-01-02; Interim Report 29 

Analysis of PFBS, PFHS, and PFOS in Groundwater 

Off-Site Wells in Decatur, AL - March/April 2012

Page 148 of 148