Document nkJeokonyVJbJ9bOXJ2gKVMXw

Aftt26 - 0061 I Centre Analytical Laboratories, frtc. L 3048 Research Drive State College, PA 16801 Phone:(814)231-8032 Fax: (814) 231-1253 or (814) 231-1580 Analytical Report Fluorochemical Characterization of Drinking Water Samples Port St. Lucie, FI (W2363) Centre Analytical Laboratory Report No. 023-007E Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R. Lindstrom Bldg. 2-3E-09 P.O. Box 33331 St. Paul, MN 55133-3331 Phone: (651)778-5352 Requester Kris J. Hansen, Ph.D. 3M Environmental Technology & Safety Services Bldg. 2-3E-09 P.O. Box 33331 St. Paul, MN 55133-3331 PAGE 10F 5 CQ0330 1 Introduction Results are reported for the analysis of a series of drinking water samples received by Centre Analytical Laboratories, Inc. (Centre) from the 3M Environmental Laboratory. The samples were collected from Port St. Lucie, FI. The Centre study number assigned to the project is 023-007. Specific fluorochemical characterization by liquid chromatography / tandem mass spectrometry (LC/MS/MS) was requested for all samples. A total of 16 samples were received for analysis. The samples were prepared and analyzed by LC/MS/MS for the following list of fluorochemicals: Table 1: Target Analysis Compound Name Perfluorooctane Sulfonate Perfiuorooctane Sulfonvlamide Perfluorooctanoate Acronvm PFOS PFOSA POAA Data generated in support of this study was generated according to USEPA Good Laboratory Practices (GLPs). The analytical method used was validated by Centre. The validation protocol and results are on file with Centre. Data presented here is the highest quality data available at this time. 2 Sample Receipt The samples were submitted in individual plastic containers and were not preserved. Sixteen individual sample containers were received. Samples were received on 02/15/00. The sample collection dates were not supplied. Chain-of-custody information is presented in Attachment A. 3 Holding Times The analytical method used was validated against a maximum holding time of 14 days. The stability of the analytes of interest for longer periods has not been determined. PAGE 2 OF5 000331 4 Methods - Analytical and Preparatory 4.1 LC/MS/MS 4.1.1 Sample Preparation for LC/MS/MS Analysis Samples were initially treated with 200 uL of 250 mg/L sodium thiosulfate solution to remove residual chlorine. Solid phase extraction (SPE) was used to prepare the samples for LC/MS/MS analysis. A forty-milliliter portion of sample was transferred to a C1BSPE cartridge. The cartridge was first eluted with 5 mL of 40% methanol in water solution. The eluate was discarded and the SPE column was then eluted with 100% methanol. A 5 ml portion of methanol was collected for analysis by LC/MS/MS. This treatment resulted in an eight-fold concentration of the samples prior to analysis. 4.1.2 Sample Analysis by LC/MS/MS In HPLC, an aliquot of extract is injected and passed through a liquid-phase chromatographic column. Based on the affinity of the analyte for the stationary phase in the column relative to the liquid mobile phase, the analyte is retained for a characteristic amount of time. Following HPLC separation, ES/MS provides a rapid and accurate means for analyzing a wide range of organic compounds, including fluorochemicals. Electrospray is generally operated at relatively mild temperatures; molecules are ionized, fragmented, and detected. Ions characteristic of known fluorochemicals are observed and quantitated against standards. A Hewlett-Packard HP11QQ HPLC system coupled to a Micromass Ultima MS/MS was used to analyze the sample extracts. Analysis was performed using selected reaction monitoring (SRM). Samples were extracted on 2/25/00 and analyzed by MS/MS on 2/26/00. The HPLC and MS/MS methods used for analysis and instrument parameters can be found in attachment D. 5 Analysis 5.1 Calibration A 7-point calibration curve was analyzed at the beginning and end of the analytical sequence for the compounds of interest. The calibration points were prepared at 0, 25, 50, 100, 250, 500, and 1000 ng/L (ppt) The response of the quantitation ion versus the concentration was plotted for each point. Using linear regression with 1/x weighting, the slope, y-intercept and correlation coefficient (r) and coefficient of determination (r2) were determined. A calibration curve is acceptable if r >0.985 (r2> 0.970). Calibration standards are prepared using the same SPE procedure used for samples. Calibration check standards were analyzed periodically (every three to five sample injections) throughout the analysis sequence. Compliance is obtained if the standard analyte concentrations are within +1-20% of the actual value. For the results reported here, calibration criteria were met. PAGE30F3 CG0332 5.2 Blanks Extraction blanks were prepared and analyzed with every extraction batch of samples. The extraction blanks should not have any target analytes present at or above the concentration of the low-level calibration standard. For these samples, the extraction blanks were compliant. Instrument blanks in the form of clean methanol solvent were also analyzed after every highlevel calibration standard, and after known high-level samples. Again, the blanks should not have any target analytes present at or above the low-level calibration standard. For the samples presented here the instrument blanks are compliant. 5.3 Surrogates Surrogate spikes are not a component of the LC/MS/MS analytical method. 5.4 Matrix Spikes Matrix spikes were prepared for every sample at a concentration of 100 ng/L using all compounds of interest. Matrix spike recoveries are given in Attachment C. Field spikes were also prepared on several samples at a concentration of 100 ng/L using all compounds of interest. Field spike recoveries are also given in Attachment C. 5.5 Duplicates . All samples were analyzed in duplicate. Results are given along with the sample results in Attachment B. 5.6 Laboratory Control Samples Miiliq water was spiked with all compound of interest at 25 and 250 ng/L. All recoveries for all compounds were between 70-130% in each LCS. 5.7 Sample Related Comments Field blank samples consisted of empty containers. Forty milliliters of type I water filtered through a hypercarb cartridge was added to the empty container and analyzed in the same manner as the other samples. 6 Data Summary Please see Attachment B for a detailed listing of the analytical results. 7 Data/Sample Retention Samples are disposed of one month after the report is issued unless otherwise specified. Ml electronic data is archived on retrievable media and hard copy reports are stored in data folders maintained by Centre. PAGE 4 OF S COO333 8 Attachments 8.1 Attachment A: Chairvof-Custody 8.2 Attachment B: Results, Ma 8.3 Attachment C: Matrix Spike Recoveries (Field and Laboratory Spikes) 8.4 Attachment D: LC/MS/MS Raw Analytical Data 9 Signatures aaaaaaaa Other Lab Members Contributing to Data Enaksha Wickremesinhe Karen Smith PAGE5 OF5 000334 3M En v ii .mental Laboratory Form 38778-PWO Shipping Address: 3M Bldg. 2-3E-09 935 Bush Avenue SI. Paul, MN 55106 Telephone: Sample Receiving: (651) 778-4948 Alleniate: (651) 778-6753 FAX: (651)778-6176 C ontact Name Company Chain of Custody /Reque. f ... jr Laboratory Analytical 17134 P roject ID /P roject Nam e Q 2 5 - C Q 7 Tem plate # P roject Lead Dept. # (m ain) <-j S t* } j n V h W - i- b A T a S ) tO r in ltJ M U J k lV F iitl R epbrt D ue D ate ^ Internal D ue D ate C lass/Job/P roject # 0 ( S 3 S O s r \ 'J D ate A vailable 3M Env. .P roject# :''=For IntelI.al Use Only R e p o rt R esults to : M ailing A ddress C ity. S tate. Z ip JS M n P D & P ]L S 135 T e le p h o n e # (J p g riY T J fe - Special Instructions and/or Specific Regulatory Requirements: (method, limit of detection, reporting units, etc.) FAX# (s > W -0 ^ \ ___________________________ ' - L ,1 1 U > D ate Due C ontract Lab P re s e rv a tiv e s : <L 1 KJ T A n a ly s is R e q u e s te d : Complete below. Attach any associated Information, VOCs j None O ther Total N um ber o f C o n ta in e rs P p y - v M . \a x X e , " P L . p> 0z X HI X Item # 1. 2. 3. 4. 5. 6. 7. C lient S am ple Identification 3M LIM S# - s i \s> \ - d A I M o 0 * ^ - P U /Y f m i - b a ' M - S i t r 1 ^ U t p ) U - P } /Q M C - lp . 3 P ^ ~ S ib > \ U ^ f f o l / 1 - ? \ A ) h i L - t c 3 l l - l - 5 > < t r D - P 1 ,0 m i - l e 3 3 ^ - S H x - 3 - 4 > ) / U _________________________ m e - t -p U td i m p t u i ________ 1/_ /___ \ D ate S am pled >/ 0. . i..yA fO -- ^ 9. Tim e S am pled > \y M atrix/ M e d ia Enter the number of containers of each 1 yA/ Jy \ \ t f Jr j \/ \ 5L / 4 (Enter an "K in the box below to indicate request) C ollected by (print): . j j / \ H em # 1 ^ (0 R elinquished by/A fiiliation I jUJLa muMiiu^ 1 3 y y i g Tim e -- D ate C ollector's signa lure: S hipped V ia: C I R eceived by/A ffiliation Tim e \o -$ o D ate Z - IS'-<X) C h a in o f C u sto d y S am p le C ondition U pon R eceipt: A cceptable O O ther: Tem perature: 'C R eceived on Ice Other Associated CoCs: i - i u o , n I n , n u , n i n i i ^ Copies to: ^^7,->ta<n afi,n ^ o .n ti,n i3 3 to H ,. I A t , -X Paga 1 Z Of Y Z - Originel - Accompanying Semples Comments: wN A n a l y t iIcnacl.3048 Research Drive, Siate College PA 16801 814-231-8032 FAX 814-231-1253 * nN I nN Analytical Results W2363 Port St. Lucie, FI 3M Sample Identification MC-615H MC-617H MC-620H MC-621H MC-623H MC-626H MC-628H MC-631H NA MC-632H NA MC-633H Sample Description Intake-P/N Intake-P/N duplicate Intake-Field Blank Empty Outflow-P/N Outflow-P/N duplicate Site 1 P/N Site 1 P/N duplicate Site 2 P/N Site 2 P/N duplicate Site 3 P/N Site 3 P/N duplicate Field Blank-P/N Empty PFOS (ng/L) <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 PFOSA (ng/L) <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 POAA (ng/L) <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 C00337 Please refer to the reverse side for our standard terms and conditions.