Document R2dMw9ZoboQLNBDdkKqavXpjk

ROBERT V. GALANTE Project Manager UNITED WATER 632 Beach Street, Orange N i, 0 7 0 5 0 Tel: 9 7 3 .6 7 8 .7 5 8 5 Fax: 9 7 3 .6 7 8 .7 5 8 6 robert.galantetiun tednrater.com G O r i United Water MEMO FROM: Robert Galante DATE: 12-5-07 s u b j e c t : Orange PFOS and PFOA TO: Betty Boros-Russo COPIES: As discussed, here are the results. Let me know if you need anything else. Bob CO T W W W .U N ITED W A TE R .C O M DEP2-SDWB-000107 QC Laboratories Analytical Report PETER TYRRELL UNITED HATER CITY OF ORANGE CHESTNUT STREET PLANT AT 632 BEACH STREET ORANGE, NJ 07050 Account No: C009Z7, UNITED HATER CITY OF ORANGE Project No: C00927, UNITED HATER CITY OF ORANGE Sample Nimber L2478663-1 Sample Description TP0010Q1 CHESTNUT ST POE TREATED Received Temp: 38 F Iced (Y/N): Y Parameter PFQA Method Sample Ntmber Sample Description L2478663-2 TP002008 ORANGE PARK POE TREATED Received Temp: 38 F Iced (Y/N): Y Parameter PFQA Method Sample Number Sample Description L2478663-3 TP003010 GIST PL POE TREATED Regarding: PETER TYRRELL UNITED HATER CITY OF ORANGE CHESTNUT STREET PLANT AT 632 BEACH STREET ORANGE, NJ 07050 P.O. No: PNSID No: 0717001 San>. Date/Time/Temp 10/24/07 09:30am NA F Inv. No: 927193 Sampled by Customer sampled MCL Result ATTACHED RLs Test Datejime Samp. Date/Time/Temp Sampled by 10/24/07 10:30am NA F Customer Saq>led MCL Result ATTACHED RLs Test Date.Time San>. Date/Time/Temp Sampled by 10/24/07 10:10am NA F Customer Sampled - A result of "ND" indicates the concentration of the analyte tested Mas either not detected or below the RLs. - Definitions: H>=not detected; NEG=negative; POS=positive; COL=colonies; RLs=laboratory reporting limits; L/A=lab accident; TNTC=too mmerous to count; NL=No Permit Limits. - A result marked with "DRY" indicates that the result was calculated and reported on a dry weight basis. - All analysis, except field tests are conducted in Southampton, PA unless otherwise identified. - The testr*pH lab"is analyzed upon receipt at the laboratory, the result will not be suitable far regulatory purposes. - Actual tines of analysis for parameters reported <24 hours are available upon request. All testing is conducted within the required holding time unless otherwise noted. - QC NELAP ID`s:PA 09-00131.NJ PA166.FL E87954.NY 11223.CT PH-0768.DE PA-018.KY 9Q228.ND 206,EPA PA00018.Bioassay:PA 09-03574,NJ PA034.FL E87953.KS E10373.SC 89020001. - QC STATE ID's:Wind Gap,NJ PAOOl.PA 48-01334;E RUTHERFORD NJ02015;Vineland NJ06005; Reading PA 06-03543. - MCL= is the recommended EPA "Maximum Contaminant Level* for a parameter. PLs=customer specific permit limits. Regulatory authorities are assessing substantial fines for testing omissions. Please track your sample collections and results on a weekly, monthly, or quarterly basis to ensure conpliance. qc's internet program 'LIVE ACCESS' will provide you with real-time access to collection dates and results. Please contact Customer Service for further information on acquiring LIVE ACCESS. Page 1 of 2 Serial Nimber: 907376 Thomas J. Hines, President 1205 Industrial Bird., P.O. Box 514, Southampton, PA 18966-0514 Phone: 215-355-3900 Fax: 215-355-7231 wmv.qclaboratories.com DEP2-SDWB-000108 QC Laboratories Analytical Report Account No: C00927, UNITED WATER CITY OF ORANGE Project No: C00927, UNITED WATER CITY OF ORANGE Received Temp: 38 F Iced (Y/N): Y Parameter Method PFOA___________________________ ___________ P.0. No: PWSID No: 0717001 MCL Result ATTACHED Inv. No: 927193 RLs Test Date,Time - A result of "ND" indicates the concentration of the analyte tested was either not detected or below the RLs. - Definitions: NDnot detected; NEG-negative; POS-positive; COL-colonies; RLs-laboratory reporting limits; L/A-lab accident; TNTC=too nunerous to count; NL=No Permit Limits. - A result marked with "DRY" indicates that the result was calculated and reported on a dry weight basis. - All analysis, except field tests are conducted in Southampton, PA unless otherwise identified. - The test"pH lab"is analyzed upon receipt at the laboratory, the result will not be suitable for regulatory purposes. - Actual times of analysis for parameters r^xsrted <24 hours are available upon request. All testing is conducted within the required holding time unless otherwise noted. - QC NELAP ID`s:PA 09-00131,NJ PA166.FL E87954.NY 11223.CT PH-0768,DE PA-018,KY 90228.ND 206.EPA PA00018.Bioassay:PA 09-03574.NJ PA034.FL E87953.KS E10373.9C 89020001. - QC STATE ID's.-Wind Gap.NJ PA001.PA 48-01334;E RUTHERFORD NJ02015;Vineland NJ06005; Reading PA 06-03543. - MCL= is the recommended EPA "Maximimi Contaminant Level" for a parameter. PLs=customer specific permit limits. Regulatory authorities are assessing substantial fines for testing omissions. Please track your sample collections and results on a weekly, monthly, or quarterly basis to ensure compliance. QC's internet program 'LIVE ACCESS' will provide you with real-time access to collection dates and results. Please contact Customer Service for further information on acquiring LIVE ACCESS. Page 2 of 2 Serial Number: 907376 Thomas J. Hines, President DEP2-SDWB-000109 C lient/A ccL Mo. t? i. Add,oss oi..t e L . : M M - Sampling Silo Sl.Bu l L .j,......._ City/State/Zip ....... fit rliffomrl) phono/Fax Client Contaci PROJECT FIELD ID 0 k .... f i j f a v k _____ P.O. No. QC Contact // Coilor.tioo K 0!Lidi>. ky!fYtiii: Ooo Militar/ Tirue L k h lt^ L l^ . L B :i..liu d -. L ___/% ' .... : 2 M e . . . ,, .. mm p : mpi 0 1 i o _ .... A /OJ O _ L^ f O l Q Y. rJ- ftJ Nll'h.irof CoPi.vri' Na Q f/O n -a c e ia la pH '% ! , ;#i L /Y .- a flM d a - p K ....1 1- ;; " O ;. " ' T . - - >#*.?.l. ,LlS0>, RH i - , O j....~ ~ z * S.P< NaOK pfo '--y; O p - - U n p re rv^ : - * - ;> 'Hel p H ',, 1 f < - " - - '= t - # U - f e m p control'" / - l W , . // * ' r :.I - - v . . ?FOS> / F F o r t E ^ / ^ - - - ... _ ff l) 3 / PFo r t ___ WW: WASTEWATER SO: SOU SL; SLUDGE OIL: OIL SOL: NON SOIL SOLID ML MISCELLANEOUS X: OTHER Field pH, Triyuj (C or F), DO. Cio. S, Conrl. etc. W o o (oof - ooio 'fP<3oto AM PLED BY: (N'ame/Compf-iny) 1[voibal/ax dn!a d u e : _______ Hiircicopy ciur;:.................; ..... ... > i' ................................... ................ Reporc Fornst: .. Slanciare! i " fnarr-,, 11L. .Slanciar';! * QG 1 NJ Rocincn.l- ! Dink j :j Ski Field P a ram e ters A na lyze d By: j Date/Timo: j Uw _ Jj Piense coti for pricop, un ci availability on rush l< i4 - 2 ! day) turnaround and on iMt but standard form ai 1 SAMPL E CUSTODY EXCHANG ES M UST BE D O C U M EN TED BELO W . U SE FU LL LEG A L SIG N A TU R E, DATE AND M ILITA RY TIM E (24 H O U R CLO CK, I.E . 8AM IS 0 8 0 0. 4 PM IS 1600) El.lWQUISHEB BY SAMPLER E O TQ U IS ^O Y V /v \r"f ~------ LNQUISHpiRv' >....i.t4 ~i / U ( j, ___ L../l'.- f EUNQUISHED BY DAT OtHjoi /t \ m uL DATE , (fk-fO'7 DATE Tit RB^LLiep BY IP A tim e' R & oe v a u v ' .....7 7 ......... ilM i...... ? _ C ? J . 4 L i l . . TIME nEcr^/gD by /.' r.-fX'> VC~I. 3 /^ V . . --\P /.Az,O,.n:.',O-0T.y.. TIME RECEIVED BY 1,'lA T t P M---1 I) DAT & ;|1 7 , TIM ./ -J - i IME DELIVERY METHOD: T QC COURIER P CLIENT Custqdy Seal Number :. UPS L . FEDEX n O T H E R ,, ________ __ __ 1 I, 0 j 7 C| 1 O'] COMMENTS: ' ] 7 7 7 # N g ) S e p n rrtV N m t for llAiS d j - l A l ' r M . . , , EUNQUISHED BY DATE ! IME RECEIVED 3Y H airardci.is: yes / no .For e x a m p le to a id c o m p le tio n , s e e roverziv s k is . iC 7 p A f l M ' i g D E P 2-S D W B -000110 n ANALYTICAL REPORT PFOA/PFOS Analysis Lot#: D7J260294 Nicki Smith QC Laboratories, Inc. 1205 Industrial Highway Southampton, PA 18966 TestAmerica Denver Gail DeRuzzo Project Manager November 17, 2007 4955 Yarrow Street Arvada, C O 80002 tel303.73Rm m fov nnoAm 7171 DEP2-SDWB-000111 Table Of Contents Standard Deliverables Report Contents Standard Deliverables The Cover Letter and the Report Cover page are considered integral parts o f this Standard Deliverable package. This report is incomplete unless all pages indicated in this Table o f Contents are included. Table of Contents Case Narrative Executive Summary - Detection Highlights Methods Summary Method/Analyst Summary Lot Sample Summary Analytical Results QC Data Association Summary Chain-of-Custody Total Number of Pages DEP2-SDWB-000112 i Case Narrative D7J260294 TestAmerica Denver utilizes USEPA approved methods in all analytical work. The samples presented in this report were analyzed for the parameters listed on the methods summary page in accordance with the methods indicated. Dilution factors and footnotes are provided on each datasheet to assist in the interpretation of the results. The results relate only to the samples in this report and meet all requirements of NELAC. All data have been reviewed for compliance with the laboratory QA/QC plan and have found to be compliant with laboratory protocols with any exceptions noted below. Please note that Non-Detect (ND) results have been evaluated down to the Method Detection Limit (MDL) and should be considered ND at the MDL. Unless otherwise noted, results for solids have been dry weight corrected. This report shall not be reproduced except in full, without the written approval of the laboratory. Sam ple A rrival and R eceipt The following report contains the analytical results for three samples received 10/26/07, according to documented sample acceptance procedures. The samples were received in good condition at a temperature of 1.9C. No anomalies were encountered during sample receipt. Standards Analytical standards were prepared using the acid form of the compound perfluorooctanoic acid (PFOA). PFOS is a commercial prepared and certified solution. Perfluoro-n-[1,2,3,4-13C4]octanoic acid was introduced at the extraction step and was used as an internal standard for quantitation of PFOA. PerfIuoro-1-[1,2,3,4-13C4]octanatesulfonate was introduced at the extraction step and was used as an internal standard for quantitation of PFOS. Sam ple Extraction and Analysis The sample presented in this report was analyzed for the target analyte by TestAmerica Denver's SOP DEN-LC-0012A. For water samples a 250 mL aliquot of each sample is acidified with 1 mL of 6N HCI solution and it is extracted using solid phase extraction technique with methanol conditioned C18 cartridges. Each sample is spiked with the internal standard, prior to extraction. After the sample is passed through the cartridge, the analytes are eluted with 4 mL of methanol. The final volume is brought to 5 mL using methanol and the extract is analyzed by LC/MS/MS. Method QC Samples The Method Blank is processed reagent water spiked with surrogate and prepared with eachv batch of 20 samples of the same matrix. The method blank was non-detect at the reporting limit in both batches. Each batch is prepared with a Laboratory Control Sample (LCS). The recoveries of two concentration levels of Laboratory Control Samples were within control limits for both batches. DEP2-SDWB-000113 Analytical Comments The internal standard recovery for 13C4 PFOS was below the lower control limit in the method blank, both LCS's, and all three samples in QC batch 7302160. Because the samples had detections for PFOS, the samples were re-extracted in QC batch 7308056. For this batch, the internal standard recovery for 13C4 PFOS was below the lower control limit in the method blank, the low concentration LCS, and sample L2478663-1 only. Both sets of results are reported. The method required MS/MSD could not be performed for either batch, due to insufficient sample volume submitted. The acceptable LCS analyte recoveries for two levels in both batches provide evidence that the laboratory is performing the method within acceptable guidelines. No other anomalies were observed. DEP2-SDWB-000114 EXECUTIVE SUMMARY - Detection Highlights D7J260294 PARAMETER L2478663-1 10/24/07 09:30 001 PFOA PFOS PFOA PFOS L2478663-2 10/24/07 10:30 002 PFOA PFOS PFOA PFOS L2478663-3 10/24/07 10:10 003 PFOA PFOS PFOA PFOS RESULT REPORTING LIMIT UNITS ANALYTICAL METHOD 0.027 0.0097 J 0.028 0.011 0.010 0.010 0.010 0.010 ug/L ug/L ug/L ug/L DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 0.061 0.011 0.05B 0.0080 J 0.010 0.010 0.010 0.010 ug/L ug/L ug/L ug/L DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012' 0.070 0.013 0.063 0.012 0.010 0.010 0.010 0.010 ug/L ug/L ug/L ug/L DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEP2-SDWB-000115 METHODS SUMMARY D7J260294 ANALYTICAL PARAMETER___________________________________________ METHOD______ LC/MS/MS, PFOA DEN -LC-0012 References: DEN Severn Trent Laboratores, Denver, Facility Standard Operating Procedure. PREPARATION METHOD DEP2-SDWB-000116 METHOD / ANALYST SUMMARY D7J260294 ANALYTICAL METHOD_________________________ ANALYST________________________ DEN -LC-0012 Jaqueline Bonnett References: DEN Severn Trent Laboratores, Denver, Facility Standard Operating Procedure. ANALYST ID_____ 003601 DEP2-SDWB-000117 SAMPLE SUMMARY D7J260294 wo # SAMPLE# CLIENT SAMPLE ID J90KG 001 L2478663-1 J90KL 002 L2478663-2 J90KM 003 L2478663-3 HOTE(S) :____________________________________________________________________ - The analytical results of the samples listed above are presented on the following pages. - All calculations are performed before rounding to avoid round-off errors in calculated results. - Results noted as "ND" were not detected at or above the stated limit. - This report must not be reproduced, except in full, without the wrinen approval o f the laboratory. - Results for the following parameters are never reported on a dry weight basis: color, corrosivity, density, flashpoint, ignitability. layers, odor, paint filter lest, pH , porosity pressure, reactivity, redox potential, specific gravity, spot tests, solids, solubility, temperature, viscosity, and weight. SAMPLED SAMP DATE TIME 10/24/07 09:30 10/24/07 10:30 10/24/07 10:10 DEP2-SDWB-000118 QC Laboratories Client Sample ID: L2478663-1 HPLC Lot-Sample #... Date Sampled... Prep D a t e ..... Prep Batch # -Dilution. Factor D7J260294-001 Work Order # J90KG1AA 10/24/07 09:3C Date Received..: 10/26/07 10/29/07 Analysis Date..: 11/01/07 7302160 Analysis Time..: 18:38 1 M e t h o d ..... DEN -LC-0012 Matrix..... ___ : WATER PARAMETER PFOA PFOS RESULT 0.027 0.0097 J REPORTING LIMIT 0.010 0.010 UNITS ug/L ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 77 43 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTB(S) :___________________ Surrogate recovery is outside stated control limits. J Estimated result. Result is less than RL. DEP2-SDWB-000119 QC Laboratories Client Sample IDs L2478663-1 HPLC Lot-Sample #. -Date Sampled... Prep D a t e ..... Prep Batch #... Dilation Factor D7J260294-001 Work Order #... : J90KG2AA 10/24/07 09:30 Date Received..: 10/26/07 11/04/07 Analysis Date..: 11/09/07 7308056 Analysis Time..: 16:31 1 Method.. DEN -LC-0012 M a t r i x ........ : WATER PARAMETER PFQA. PFOS RESULT 0.028 0.011 REPORTING LIMIT 0.010 0.010 UNITS ug/L ng/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 85 45 * RECOVERY LIMITS (50 - 200) (50 - 200) HOTE(S) :___________________ * Surrogate recovery is outside stated control limits. DEP2-SDWB-000120 QC Laboratories Client Sample XD: L2478663-2 HPLC Lot-Sample # __ : D7J260294-002 Work Order #...: J90KL1AA Date Sampled...: 10/24/07 10:30 Date Received..: 10/26/07 Prep Da t e ..... : 10/29/07 Analysis Date..: 11/01/07 Prep Batch # __ : 7302160 Analysis Time..: 18:54 Dilution Factor; 1 Method........ : DEN -LC-0012 Matrix........ : WATER PARAMETER PFOA PFOS RESULT 0.061 0.011 REPORTING LIMIT 0.010 0.010 UNITS ug/L ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 83 49 * RECOVERY LIMITS (50 - 200) (50 - 200) NPTB(S) :___________________ * Surrogate recovery is outside stated control limits. DEP2-SDWB-000121 QC Laboratories Client Sample ID: L2478663-2 HPLC Lot-Sample # -Date Sampled__ Prep Da t e ..... Prep Batch #... Dilution Factor D7J260294-002 Work. Order #... : J90KL3AA 10/24/07 10:30 Date Received..: 10/26/07 11/04/07 Analysis Date..: 11/09/07 7308056 Analysis Time..: 16:47 1 Method.. ..... : DEN -LC-0012 H PARAMETER PFOA PFOS RESULT 0.058 0.0080 J REPORTING LIMIT 0.010 0.010 UNITS ug/L ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 89 65 RECOVERY LIMITS (50 - 200) (50 - 200) HOTB(S) :______________ i Estimated result Result is less than RL. : WATER DEP2-SDWB-000122 QC Laboratories Client Sanale ID: L2478663-3 HPLC Lot-Sample #...: D7J260294-003 Work Order # ...: J90KM1AA Date Sampled__ : 10/24/07 10:10 Date Received..: 10/26/07 Prep Date..... : 10/29/07 Analysis Date..: 11/01/07 Prep Batch #...: 7302160 Analysis Time..: 19:10 Dilution Factor: 1 Method..... ..: DEN -LC-0012 M. PARAMETER PFOA PFOS RESULT 0.070 0.013 REPORTING LIMIT 0.010 0.010 UNITS ug/L ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 75 44 * RECOVERY LIMITS (50 - 200) (50 - 200) MOXE(S) :___________________ * Surrogate recovery is outside stated control limits. r WATER DEP2-SDWB-000123 QC Laboratories Client Sample ID: L2478663-3 HPLC Lot-Sample # -- : D7J260294-003 Work Order # -- : J90KM2AA Date Sampled...: 10/24/07 10:10 Date Received..: 10/26/07 Prep Da t e ..... : 11/04/07 Analysis Date..: 11/09/07 Prep Batch # -- : 7308056 Analysis Time..: 17:03 Dilution Factor: 1 Method........ : DEN -LC-0012 M atrix.... ___ : WATER PARAMETER PFOA PFOS RESULT 0.063 0.012 REPORTING LIMIT 0.010 0.010 UNITS ug/L ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 86 57 RECOVERY LIMITS (50 - 200) (50 - 200) DEP2-SDWB-000124 QC DATA ASSOCIATION SUMMARY D7J260294 Sample Preparation and Analysis Control Numbers SAMPLE# 001 002 003 MATRIX WATER WATER WATER WATER WATER WATER ANALYTICAL METHOD DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 DEN -LC-0012 LEACH BATCH # PREP BATCH # 7302160 7308056 7302160 7308056 7302160 7308056 MS RUN# DEP2-SDWB-000125 METHOD BLANK REPORT HPLC Client Lot #...: D7J260294 MB Lot-Sample #: R7J290000-160 Analysis Date..: 11/01/07 Dilution Factor: 1 Work Order #...: J93A71AA .Prep Date...... : 10/29/07 Prep Batch #...: 7302160 Matrix........ : WATER Analysis Time..: 17:01 PARAMETER PFOA PFOS RESULT________ ND ND REPORTING LIMIT UNITS______ METHOD______ 0.010 ug/L DEN -LC-0012 0.010 ug/L DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 69 39 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTE(S) :____________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. * Surrogate recovery is outside stated control limits. DEP2-SDWB-000126 METHOD BLANK REPORT HPLC Client Lot D7J260294 MB Lot-Sample #: R7K040000-05S Analysis Date..: 11/09/07 Dilution Factor: 1 Work Order : KAHRV1AA Prep Da t e ..... : 11/04/07 Prep Batch 7308056 Matrix........ : WATER Analysis Time..: 14:54 PARAMETER PFOA PFOS RESULT ND ND REPORTING LIMIT UNITS 0.010 ug/L 0.010 ug/L METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 81 46 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTE(S) :______________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. * Surrogate recovery is outside stated control limits. DEP2-SDWB-000127 LABORATORY CONTROL SAMPLE EVALUATION REPORT HPLC Client Lot #...: D7J260294 Work Order #... LCS Lot-Sample#: R7J290000-160 Prep Date..... : 10/29/07 Analysis Date.. Prep Batch #...: 7302160 Analysis Time.. Dilution Factor: 1 J93A71AC 11/01/07 17:17 Matrix PARAMETER PFOA PROS PERCENT RBCOVBRY 102 102 RECOVERY LIMITS (70 - 130) {39 - 120) METHOD______ DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 63 40 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTE(S) :____________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. Bold print denotes control parameters * Surrogate recovery is outside sated control limits. : WATER DEP2-SDWB-000128 LABORATORY CONTROL SAMPLE DATA REPORT HPLC Client Lot D7J260294 Work Order #...: J93A71AC LCS Lot-Sample#: R7J290000-160 Prep Date..... : 10/29/07 Analysis Date..: 11/01/07 Prep Batch #...: 7302160 Analysis Time..: 17:17 Dilution. Factor: 1 Matrix....... .: WATER PARAMETER PFOA PFOS SPIKE AMOUNT 0.200 0.200 MEASURED AMOUNT 0.205 0.203 UNITS ug/L ug/L PERCENT RECOVERY 102 102 METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 63 40 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTE (S) :______________________________________ Calculations are perfoimed before rounding to avoid round-off errors m calculated results. Bold prim denotes control parameters * Surrogate recovery is outside stated control limits. DEP2-SDWB-000129 LABORATORY CONTROL SMPLB EVALUATION REPORT HPLC Client Lot # -- : D7J260294 Work Order #...: J93A71AD LCS Lot-Sample#: R7J290000-160 Prep Da t e..... : 10/29/07 Analysis Date..: 11/01/07 Prep Batch #... : 7302160 Analysis Time..: 17:33 Dilution Factor: 1 Matrix PARAMETER PFOA PFOS PERCENT RECOVERY 108 107 RECOVERY LIMITS (70 - 130) (39 - 120) METHOD______ DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 68 40 * RECOVERY LIMITS (50 - 200) (50 - 2 0 0 ) NOTE(S) :______________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. Bold prim denotes control parameters * Surrogate recovery is outside stated control limits. WATER DEP2-SDWB-000130 LABORATORY CONTROL SAMPLE DATA REPORT HPLC Client Lot #...: D7J260294 Work Order #-..: LCS Lot-Sample#: R7J290000-160 Prep D a t e ..... : 10/29/07 Analysis Date..: Prep Batch # -- : 7302160 Analysis Time..: Dilution Factor: 1 J93A71AD 11/01/07 17:33 Matrix........ : WATER PARAMETER PFOA PFOS SPIKE AMOUNT 0.0200 0.0200 MEASURED AMOUNT 0.0215 0.0215 UNITS ug/L ug/L PERCENT RECOVERY 108 107 METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 68 - 40 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTB(S) :______________________________________ Calculations are performed before rounding to avoid ronnd-of? errors in calculated results. Bold print denotes control parameters * Surrogate recovery is outside stated control limits. DEP2-SDWB-000131 LABORATORY CONTROL SAMPLE EVALUATION REPORT HPLC Client Lot #...: D7J260294 Work Order KAHRV1AC LCS Lot-Sample#: R7K040000-056 Prep D a t e ..... : 11/04/07 Analysis Date..: 11/09/07 Prep Batch #...: 7308056 Analysis Time..: 15:10 Dilution Factor: 1 M a trix........ : WATER PARAM ETER PFOA PFOS PERCENT RECOVERY 99 105 RECOVERY L IM IT S (70 - 130) (39 - 120) METHOD DENT -LC-0012 DEN -LC-0012 SURROGATE 13C 4 PFOA 13C 4 PFOS PERCENT RECOVERY 77 53 RECOVERY L IM IT S (50 - 200) (50 - 200) NOTE(S): Calculations are performed before rounding to avoid round-off errors in calculated results. Bold print denotes control parameters DEP2-SDWB-000132 LABORATORY CONTROL SAMPLE DATA REPORT HPLC Client Lot # __ : D7J260294 Work Order #...: KAHRV1AC LCS Lot-Sample#: R7K040000-056 Prep Date..... : 11/04/07 Analysis Date..: 11/09/07 Prep Batch # -- : 730805S Analysis Time..: 15:10 Dilution Factor: 1 Matrix....... .: WATER PARAMETER PFOA PROS SPIKE AMOUNT 0.200 0.200 MEASURED AMOUNT 0-198 0.211 UNITS ug/L ug/L PERCENT RECOVERY 99 105 METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 77 53 RECOVERY LIMITS (50 - 200) (50 - 200) MOTS(S) :______________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. Bold print denotes control parameters DEP2-SDWB-000133 LABORATORY CONTROL SAMPLE EVALUATION REPORT HPLC Client Lot : D7J260294 Work Order #...: KAHRV1AD LOS Lot-Sample#: R7K040000-056 Prep Da t e..... : 11/04/07 Analysis Date..: 11/09/07 Prep Batch : 7308056 Analysis Time..: 15:26 Dilution Factor: 1 Matrix PARAMETER PFOA PFOS PERCENT RECOVERY 100 89 RECOVERY LIMITS (70 - 130) (39 - 120) METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 78 47 * RECOVERY LIMITS (50 - 200) (50 - 200) NOTE(S) : __________________________________ Calculations are performed before rounding to avoid round-off errors Hi calculated results. Bold prim denotes control parameters * Surrogate recovery is outside stated control limits. : WATER DEP2-SDWB-000134 LABORATORY CONTROL SAMPLE DATA REPORT HPLC Client Lot #.-. LCS Lot-Sample# Prep Date..... Prep Batch # -- Dilution Factor D7J260294 Work Order #...: KAHRV1AD R7K040000-056 11/04/07 Analysis Date..: 11/09/07 7308056 Analysis Time..: 15:26 1 Matrix....... .: WATER PARAMETER PFOA PFOS SPIKE AMOUNT 0.0200 0.0200 MEASURED AMOUNT 0.0200 0.0178 UNITS ug/L ug/L PERCENT RECOVERY 100 89 METHOD DEN -LC-0012 DEN -LC-0012 SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 78 47 * RECOVERY LIMITS {50 - 200) (50 - `200) NOTE(S) -______________________________________ Calculations are performed before rounding to avoid round-off errors in calculated results. Bold prim denotes control parameters * Surrogate recovery is outside stated control limits. DEP2-SDWB-000135