### 3M ENVIRONMENTAL 

### LABORATORY REPORTNO. IS013-07-07



# Analysis of PFOA, PFBS, PFHS, and PFOS 

# in Aqueous Samples from 3M Decatur, Alabama. -Groundwater Treatment Plant GAC 

# System —

. 

# July 2013
I W *= TM I"k mm

Repat Date

— 

### Date of Last Signawre



### 3M EHS&S Operabons Building 260-5N-17 Maplewood, MN 55144-1000

~ Gary Hohenstein 3M Building 224-51V-03 Saint Paul, MN 55144-1 000 Phone: (651) 737-3570

ACCREDITED T-% - #205201 The testing repoded erein meet the requirernerft of ANSUtSMEC 17025:2006

"General Reqwrenienft for the Competence of Tesbng and Calibration Labomtories", in accordance wtth the A&A Tesbng Certrficate # 2062.01. Addifionally; the laboratmys quardy system has been audited and was determitned tD be in confonnance with the EPA GLPs (40 CFR 792) by an irKWperident A&A assessfnent

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### 3M EWIRONMEIVTAL LABORATORY REPORTNO- IS013-071)7



### 3M Environmental Labor

- atory 3M Environmental Laboratory Technical Director: William K Reagen, Ph.D. 3M Principal Analyfical Invesfigator: Susan Wotf Report Author. ,Cheisie Grochow



## Anaiytical Repoi

- t IS013 - 

## 07 - 

## 07 3M Decatur Groundwater Treatrnent Plant System; July 

### 2013 Sampling

Report Date: Date of Last Signature


### 1 

# Introduction/Summary
system at the 3M Decatur, 

### AL fac Water samples were collected 

### • Weston Solufions personnel • July 

### 23, 2013. Samples were retumed to the3M Environmental Laboratory for analysis 

### • Perfluorooctmioate (PFOA), PerfluaDbutane suffonate (PFBS), Perfluorohexane sulfbnate (PFHS), Perfluaooctane sulfonate 

### (PFOS), arvd the surrogate recovety standards

~ 

## PFOA and 13 C 4 -PFOS under WxxatDry project number 

### IS013-07-07. Analysis • the samples was completed as specified un•er 3M Environmental Labor

- atory General Project Outline 

### (GPO) num•er 

### GPOI 1-100•. The 3M Environmental LaborattAV &AU,ided • 

## I MM 

### t R 

### - -

Samples were prepared and analyzed 

### • method ETS-8-044.1 "Meffiod • Analysis f•r the Determination of Perfluorinated Compounds in Water 

### by LCIMSIMS; Direct Injection Analysis7. Select hterml standards were use• t• aid in the •ata quality objecfives. Table 

### I summarizes the sample resufts using te analyfical metiod kiengied above. 

### AJI resufts lbr qualky control samples prepared and anaWed wkh 

### the samples vvill be reported a'nd discussed elsewhere in 

### ft report

The tesfing reported herein meet the requirements of ANSMMEC 17025. , 2005 "General Requirements for te Competence of Testirig and Calibration Labomtories", in accordance with the A21-A Testing Cerfiftate # 205Z0I. AdcNonalty, the WboratDr/s quoJKy system hm bftn audited md was detmTWirwd to be in confbnmnee with the EPA GLPs (40 CFR 792) by an independent A21-A assessnwvt

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### 3M ENVIRONMEAfTAL 

### LABORATORY REPORTNO- IS013-07-07



## Table 1. 

## Sample Results Summary
PFOA PFBS PFOS Concerftation Concentrabon :H Con ntLon ConcenbaWri 3M LMS ID Saffipie Description (ngI L) (nghnL) (ngfrnt.) (ng/mL) tS013,07-07-001 DAL-GW-ACI, -Sample 1650 1230 757 1700 tS013-07-07-002 DAL-GW-AC, -Samp(e Dup 1610 1230 741 1600 Average 1630 (l) 1230 749 ti) 16800, •RPD SainpWSample Dup 2.5 0.0 2.1 2.4 IS013-07-07-004 DAL-GW-ACM27 Smple 875 1210 601 1-35 IS013-07-07-005 DAL-GW 7 4QW Sam le Dup 844 1210 585 127

Average 8m (1) 1210 593 (l) 1.31 10 %RPD &vnple/Sample Dup 3.6 0.0 2.7 6.1 (S013-07-07-007 DAL-GW-ACE, Sample 0-0663 1970 0.0784 0.0267 Ls013-07-07M8 DAL-GWACE; Sample Dup 0-0619 1950 0-0771 0-02137 Avwage 0.0641 12) 1960 " 1 0.0778 0 0.0277 r4 •RPD SmVte/Swnple Dup 6.9 1.0 1.7 7.2 IS013-07-07-010 DAL-GW-WW8R Sample 2530 258 1210 3850 L9013-07-07-011 DAL-GW-WW8R; Sampte Dup 2750 268 1300 3970 Avemp 2640 (1) 263 (l) 1260 3910 0) %RPD SaffvWSample DW 8.3 3.8 72 3.1 IS01I3 07-07-013 DAL-GW-MgR Sample 2370 210 1020 3600 [so DAL-GW-WW9R; Sample Dup 2440 214 1040 3740 Avemp 2410 03 212 m 1030 11) 3670 " 1 %RPD Sw ldSample Dup 2.9 1.9 1.9 3.8
NA = W AMknW (1) Reported resufts were prepmod aW analyzed by ErS-&W I using exWmal sbndard agWxabm The arklybcal ffwfflod urmtawb)s assomted wdh the mported resuts are as folDm: PFOA t14T., PFBS t 12%, PFHS t13%, and PFOS t 15%- (2) Reporbgd mmks were pepared aW mWgd by ETS-&W I usrg mtanal sWrKlmd cabbrabon- The midytcN rrw#W urcmtwbes associabBd wdh ft reported msults are as folows- PFOA t 10%, PFHS t 14%, and PFOS t 15% 

# 2 lllethods

- 

## Analytical

# and Preparatory 2.1 Meth•ds

Table 2. Target AnaMes 

# ~iW ~~~~ l-„1„ 

# ~ M ! Yi . [.. 

# ~ \E M I I I

.

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### 3M ENVIRONMENTAL LABOPA TOPY 

### REPORTNO- IS013-07-07


### 2.2 Sample Collection 

## Samples were collected on July 23,2013 

## in Nalgene Tm (high-density potyethylene) botfles prepared at the 3M Environmental Laboratory. Prior t• sample collecfion, botfies deskjrtated for fidd 

## matrix spikes were slYiked in the laboratory wkh a known volume of an appropriate matrix spiking solufim contag PFOA, PFBS, PFHS, arvd PFOS. 

## Sample bottles for sampling • locations ACM2 

## and ACE, 

## along with-t-ie %ita riominal conoenlrabon • 1 

## ng/mL and a mkWre • surrogate recovery standards at a nominal concentrafion • 0.1 

## ng/mL. Collected sample bottles were received • ft 

## Liboratory at ambient conditons • July 25, 2013. 

## 2.3 Sample Preparation AJI 

## samples were diluted wfth methanol and analyze• fbr all anaVes. Samples diMed 1:10 

## were -Afr-
~ V2; e• t I"t of vil - fg 2 "NTL z 

### i x - I 

## mL of a surrogate spng sohAon. The 1:100 

## dflubons were prepared by 

## ranoving a 0.1 

## mL aliquot of the well mixed sample an• adding 9.8 

## mL of methanol and 0.1 

## mL of a surrogate s•iking soiufion. Prepared samples were analyze• by 

## extemal standard cahbrafion. The ACE 

## an• ACM2 

## sample sets and the Trip Blank sample were prepared and armlyzed for all analytes by 

## transferfing an aliquot • the well mixed sample into an autovial. Prepared samples were analyzed • 

## intemaA standard calibration. D 

## urinn-the-p re• an ib 

## x m AI)P--L-

- 4j xt-4 tvW.

Nnif-c ?SW# , jf 2 

## separate intemal standard spiking solubon was added to the laboratory control samples (nominal concentration of 1 

## ngImL). The sample bottles fbr ACE, ACM2, 

## and Trip 

## Blank were spiked whh an intemal stMard mix at a nominal concentrabon of I 

## ng/mL prior to being sent to the field fbr sam•le collecbon. The laboratory cordrol samples were anWyzed m the sam manner as the 

## samples. 2.4 Analysis AJI 

## samples and qualfty control samples were -• for four tirget analytes using high perfbrmance liquid chromatographyttandem mass specb

- ometry (HPLUIVISIMS). 

## Pertrient instrumerit parameters, the liquid dwomatography gradient program, and the specific mass transibom analyzed are desctibed h thetables bdow. Due 

## • ffie nature of the sample, the wide range of concentrations found in the sarnple, and the

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