~~LABORATORY DATA CONSULTANTS, INC.

Transcription

1 ~~LABORATORY DATA CONSULTANTS, NC. :,,, 2701 Loker Ave. West, Suite 220, Carlsbad, CA Bus: Fax: LC>C:: Anchor Environmental, LLC 720 Olive Way, Suite 1900 Seattle, WA ATTN: Ms. Joy Dunay February 6, 2015 SUBJECT: Newtown Creek, Phase 2, Data Validation Dear Ms. Dunay, Enclosed is the final validation report for the fractions listed below. This SDG was received on February 2, Attachment 1 is a summary of the samples that were reviewed for each analysis. LDC Project #33649: SDG# A7563 Fraction Dioxins/Dibenzofurans, Polychlorinated Biphenyls as Congeners The data validation was performed under Stage 2B guidelines. The analyses were validated using the following documents, as applicable to each method: Quality Assurance Project Plan for Phase 2 of the Remedial nvestigation/feasibility Study at Newtown Creek, July 2014 USEPA Contract Laboratory Program National Functional Guidelines for Chlorinated Dibenzo-p-Dioxins and Chlorinated Dibenzofurans Data Review, September 2011 Please feel free to contact us if you have any questions. Christina Rink Project Manager/Chemist L:\Anchor\Newtown\Phase 2\SGS\33649COV.wpd UL-SF

2 34 pages-sf 1 WEEK TAT Attachment 1 ;~~~~gl~!~~~c~~1~ '~ ~...,~LP~ ~3~R49J~p_ch<>r E~yirpniff~!l~l:!~gilflE!iN'lAV NeWf()'wr({~'rij~l<Fll!i~i-!~~tii!~~~~;-r~-c~~~l~if_ ~i~i~~; ).-J~; DC SDG# DATE REC'D Cong. (1668A) Dioxins (16138) liii~trfi<i wat~rn-issue/seciirl1~;if~ : ''r:1:~.?ji Jd~l w T s WT S W T S W S W S W s w S W S W s w S W s w s w S W S W W s A A /02/15 02/09/15 2 o o 2 o o otal T/CR o o o o o o o o o o o o o o o o o o o o o o o o o o o o o 4 Shaded cells indicate Stage 4 validation (all other cells are Stage 28 validation). These sample counts do not include MS, MSD. or DUP's. L:\Anchor\Newtown\Phase 2\SGS\33649ST-SGS.wpd

3 Laboratory Data Consultants, nc. Data Validation Report LDC Report# 33649A21 Project/Site Name: Collection Date: LDC Report Date: Matrix: Parameters: Validation Level: Laboratory: Newtown Creek Phase 2 January 18, 2015 February 4, 2015 Water Dioxins/Dibenzofurans Stage 28 SGS North America Sample Delivery Group (SDG): A7563 Sample dentification NCQ1 077PSWW-A NCQO??PSWW-A V:LOGN\ANCHOR\NEWTOWNPHASE 2\SGS\33649A21_AN3.DOC 1

4 ntroduction This data review covers 2 water samples listed on the cover sheet including dilutions and reanalysis as applicable. The analyses were per EPA Method for Polychlorinated Dioxins/Dibenzofurans. This review follows the Quality Assurance Project Plan for Phase 2 of the Remedial nvestigation/feasibility Study at Newtown Creek (July 2014) and the USEPA Contract Laboratory Program (CLP) National Functional Guidelines for Chlorinated Dibenzo-p Dioxins (COOs) and Chlorinated Dibenzofurans (CDFs) Data Review (September 2011). A qualification summary table is provided at the end of this report if data has been qualified. Flags are classified as P (protocol) or A (advisory) to indicate whether the flag is due to a laboratory deviation from a specified protocol or is of technical advisory nature. Raw data were not reviewed for this SDG. The review was based on QC data. The following are definitions of the data qualifiers: U J R NJ UJ A P ndicates the compound or analyte was analyzed for but not detected. ndicates an estimated value. Quality control indicates the data is not usable. Presumptive evidence of presence of the compound at an estimated quantity. ndicates the compound or analyte was analyzed for but not detected. The sample detection limit is an estimated value. ndicates the finding is based upon technical validation criteria. ndicates the finding is related to a protocol/contractual deviation. None ndicates the data was not significantly impacted by the finding, therefore qualification was not required. V:\LOGNANCHOR\NEWTOWN\PHASE 2\SGS\33649A21_AN3.DOC 2

5 . Technical Holding Times All technical holding time requirements were met. The chain-of-custodies were reviewed for documentation of cooler temperatures. All cooler temperatures met validation criteria.. HRGC/HRMS nstrument Performance Check nstrument performance was checked at the required daily frequency. The chromatographic resolution between 2,3,7,8-TCDD and the peaks representing any other unlabeled TCDD isomers was resolved with a valley of less than or equal to 25%. The chromatographic resolution between 2,3,7,8-TCDF and the peaks representing any other unlabeled TCDF isomers was resolved with a valley of less than or equal to 40%. ll. nitial Calibration A five point initial calibration was performed as required by the method. Percent relative standard deviations (%RSD) were less than or equal to 20.0% for unlabeled compounds and less than or equal to 35.0% for labeled compounds. The ion abundance ratios for all PCDDs and PCDFs were within method and validation criteria. V. Continuing Calibration Continuing calibration was performed at the required frequencies. All of the continuing calibration results were within the QC limits for unlabeled compounds and labeled compounds. The ion abundance ratios for all PCDDs and PCDFs were within method and validation criteria. V. Blanks Method blanks were reviewed for each matrix as applicable. No polychlorinated dioxin/dibenzofuran contaminants were found in the method blanks. V. Matrix Spike/Matrix Spike Duplicates The laboratory has indicated that there were no matrix spike (MS) and matrix spike duplicate (MSD) analyses specified for the samples in this SDG, and therefore matrix spike and matrix spike duplicate analyses were not performed for this SDG. V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A21_AN3.DOC 3

6 V. Ongoing Precision & Recovery Samples (OPR) Ongoing precision and recovery (OPR) samples were reviewed for each matrix as applicable. The percent recoveries (%R) were within the QC limits. V. Regional Quality Assurance and Quality Control Not applicable. X. nternal Standards All internal standard recoveries were within QC limits. X. Field Duplicates Samples NCQ1077PSWW-A and NCQ077PSWW-A were identified as field duplicates. No polychlorinated dioxins/dibenzofurans were detected in any of the samples with the following exceptions: Concentration (pg/l) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) 1,2,3,6,7,8-HxCDD (S27) 1,2,3,7,8,9-HxCDD (S27) 1,2,3,4,6,7,8-HpCDD (S27) OCDD (S50) - 1,2,3,4,7,8-HxCDF 1.17U (S27) 1,2,3,6, 7,8-HxCDF (S27) 2,3,4,6, 7,8-HxCDF (S27) 1,2,3,4,6,7,8-HpCDF (S27) OCDF (S27) Total HxCDD (S27) Total HpCDD (S50) - Total PeCDF (S27) Total HxCDF (S27) V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A21_AN3.DOC 4

7 Concentration (pg/l) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) (S2f) X. Field Blanks No field blanks were identified in this SDG. X. Target Compound dentifications Raw data were not reviewed for this SDG. X. Compound Quantitation All compound quantitations were within validation criteria with the following exceptions: Sample Compound Flag A or P NCQ1 O??PSWW-A All compounds reported as estimated maximum J (all detects) A NCQO??PSWW-A possible concentration (EMPC) Raw data were not reviewed for this SDG. XV. System Performance Raw data were not reviewed for this SDG. XV. Overall Assessment of Data The analysis was conducted within all specifications of the method. No results were rejected in this SDG. Due to compound quantitation, data were qualified as estimated in two samples. The quality control criteria reviewed, other than those discussed above, were met and are considered acceptable. Sample results that were found to be estimated (J) are usable for limited purposes only. Based upon the Stage 28 data validation all other results are considered valid and usable for all purposes. Data flags are summarized at the end of this report if data has been qualified. V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A21_AN3.DOC 5

8 Newtown Creek Phase 2 Dioxins/Dibenzofurans - Data Qualification Summary - SDG A7563 SDG Sample Compound Flag A orp Reason A7563 NCQ1 O??PSWW-A All compounds reported J (all detects) A Compound quantitation NCQO??PSWW-A as estimated maximum (EMPC) possible concentration (EMPC) Newtown Creek Phase 2 Dioxins/Dibenzofurans - Laboratory Blank Data Qualification Summary - SDG A7563 No Sample Data Qualified in this SDG V:\LOGNANCHORNEWTOWNPHASE 2\SGS\33649A21_AN3.DOC 6

9 LDC #: 33649A21 VALDATON COMPLETENESS WORKSHEET SDG #: A7563 Stage 28 Laboratory: SGS North America METHOD: HRGC/HRMS Dioxins/Dibenzofurans (EPA Method 16138) Date;;?41~ Page:_/ of_/ Reviewer:~ 2nd Reviewer:,c The samples listed below were reviewed for each of the following validation areas. Validation findings are noted in attached validation findings worksheets. ~alidation Area Comments. Sample receipt/technical holding times PrtA. HRGC/HRMS nstrument performance check Pr ll. V. v. V. V. V. X. X. X. X. nitial calibrationfl&o'- Continuing calibration Laboratory Blanks Field blanks Matrix spike/matrix spike duplicates Laboratory control samples Field duplicates nternal standards Compound quantitation RUL-EJQ,'b99s- Target compound identification A,JJ 4:-.,;;.o/~s A 0cb~~ ~ N fj C~S ~ {)-pjz 5vJ A- 6't1 N b1+-~ X. XV. System performance Overall assessment of data N Jr Note: A = Acceptable N = Not provided/applicable SW = See worksheet ND = No compounds detected R = Rinsate FB = Field blank D = Duplicate TB = Trip blank EB = Equipment blank SB=Source blank OTHER: Client D LabiD Matrix Date 1 NCQ1 O??PSWW-A A water 01/18/15 2 NCQO??PSWW-A A water 01/18/ n Notes MBL3D04 L:\Anchor\Newtown\Phase 2\SGS\33649A21 W. wpd 1

10 VALDATON FNDNGS WORKSHEET METHOD: HRGC/HRMS Dioxins/Dibenzofurans (EPA Method 16138) A. 2,3,7,8-TCDD F. 1,2,3,4,6,7,8-HpCDD K. 1,2,3,4,7,8-HxCDF P. 1,2,3,4,7,8,9-HpCDF U. Total HpCDD B. 1,2,3,7,8-PeCDD G. OCDD L. 1,2,3,6,7,8-HxCDF Q.OCDF V. Total TCDF C. 1,2,3,4,7,8-HxCDD H. 2,3,7,8-TCDF M. 2,3,4,6,7,8-HxCDF R. Total TCDD W. Total PeCDF D. 1,2,3,6,7,8-HxCDD. 1,2,3,7,8-PeCDF N. 1,2,3,7,8,9-HxCDF S. Total PeCDD X. Total HxCDF E. 1,2,3,7,8,9-HxCDD J. 2,3,4,7,8-PeCDF 0. 1,2,3,4,6,7,8-HpCDF T. Total HxCDD Y. Total HpCDF Notes: COMPNDList.wpd

11 LDC: _33649A21_ Method: Dioxins/Furans by Method VALDATON FNDNGS WORKSHEET Field Duplicates Page:#rfJ Reviewer: 2nd Reviewer:~ concentr~tion (pg/l) Analyte D 3.32 E 2.53 F 92.4 G 607 K 1.17U L 2.01 M Q 79.3 T 20.7 u 172 w 6.36 X 33.9 y 75 RPD 2 (S 50) Diff Diff. Limits (~QL) V:\FELD DUPLCATES\33649A21

12 LDC #:3 3>{,~ f\ ">\ VALDATON FNDNGS WORKSHEET Compound Quantitation and Reported Rls Page: _1_of_1_ Reviewer:~ 2nd Reviewer: ~ METHOD: GC/MS Dioxins/Dibenzofurans (Method 16138) Please see qualifications below for all questions answered "N". Not applicable questions are identified as "N/A". YN~ ~ Were the correct internal standard (S), quantitation ions and relative response factors (RRF) used to quantitate the compound? Compound quantitation and Rls were adjusted to reflect all sample dilutions and dry weight factors (if necessary). # Date Compound Finding Associated Samples Qualifications EMPC results A-NB Jdets/A Comments: -&ee SS+lple calcbllatign orificatign wgrkeh'i''i't for recalcplatjons P:\NEWTOWN\COMQUA1613.wpd

13 Laboratory Data Consultants, nc. Data Validation Report LDC Report# 33649A31 ProjectlSite Name: Newtown Creek Phase 2 Collection Date: January 18, 2015 LDC Report Date: February 5, 2015 Matrix: Parameters: Water Polychlorinated Biphenyls as Congeners Validation Level: Stage 28 Laboratory: SGS North America Sample Delivery Group (SDG): A7563 Sample dentification NCQ1 O??PSWW-A NCQO??PSWW-A V:LOGNANCHOR\NEWTOWNPHASE 2\SGS\33649A31_AN3.DOC 1

14 ntroduction This data review covers 2 water samples listed on the cover sheet including dilutions and reanalysis as applicable. The analyses were per EPA Method 1668A for Polychlorinated Biphenyl as Congeners. This review follows the Quality Assurance Project Plan for Phase 2 of the Remedial nvestigation/feasibility Study at Newtown Creek (July 2014) and the USEPA Contract Laboratory Program (CLP) National Functional Guidelines for Chlorinated Dibenzo-p Dioxins (COOs) and Chlorinated Dibenzofurans (CDFs) Data Review (September 2011). A qualification summary table is provided at the end of this report if data has been qualified. Flags are classified asp (protocol) or A (advisory) to indicate whether the flag is due to a laboratory deviation from a specified protocol or is of technical advisory nature. Raw data were not reviewed for this SDG. The review was based on QC data. The following are definitions of the data qualifiers: U J R NJ UJ A P ndicates the compound or analyte was analyzed for but not detected. ndicates an estimated value. Quality control indicates the data is not usable. Presumptive evidence of the presence of the compound at an estimated quantity. ndicates the compound or analyte was analyzed for but not detected. The sample detection limit is an estimated value. ndicates the finding is based upon technical validation criteria. ndicates the finding is related to a protocol/contractual deviation. None ndicates the data was not significantly impacted by the finding, therefore qualification was not required. V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 2

15 . Technical Holding Times All technical holding time requirements were met. The chain-of-custodies were reviewed for documentation of cooler temperatures. All cooler temperatures met validation criteria.. HRGC/HRMS nstrument Performance Check nstrument performance was checked at the required daily frequency. Retention time windows were established for all congeners. The chromatographic resolution between the congeners PCB-23 and PCB-34 and congeners PCB-182 and PCB- 187 was resolved with a valley of less than or equal to 40%. ll. nitial Calibration A five point initial calibration was performed at the required daily frequency. Percent relative standard deviations (%RSD) were less than or equal to 20.0% for unlabeled compounds and less than or equal to 35.0% for labeled compounds. The ion abundance ratios for all PCBs were within validation criteria. The minimum S/N ratio was greater than or equal to 10 for each unlabeled compound and labeled compound. V. Continuing Calibration Continuing calibration was performed at the required frequencies. All of the continuing calibration percent differences (%0) between the initial calibration RRF and the continuing calibration RRF were less than or equal to 60.0% for all compounds. The ion abundance ratios for all PCBs were within method and validation criteria. The minimum S/N ratio was greater than or equal to 10 for each unlabeled compound and labeled compound. V. Blanks Method blanks were reviewed for each matrix as applicable. No polychlorinated biphenyls as congeners contaminants were found in the method blanks with the following exceptions: V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 3

16 Extraction Associated Method Blank D Date Compound Concentration Samples MB1_ /23/15 PCB pg/l All samples in SDG A7563 PCB pg/l PCB-156/ pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB-30/ pg/l PCB pg/l PCB-26/ pg/l PCB pg/l PCB-28/ pg/l PCB-21/ pg/l PCB pg/l PCB pg/l PCB-69/ pg/l PCB-44/47/ pg/l PCB-71/ pg/l PCB pg/l PCB-61/70/74/ pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB-113/90/ pg/l PCB pg/l PCB-1 08/119/86/97/125/ pg/l PCB pg/l PCB pg/l PCB-151/ pg/l PCB-147/ pg/l PCB pg/l PCB pg/l PCB-153/168 pg/l PCB pg/l PCB-163/138/ pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB pg/l PCB-180/ pg/l PCB pg/l PCB pg/l Sample concentrations were compared to concentrations detected in the method blanks. The sample concentrations were either not detected or were significantly greater (>5X blank contaminants) than the concentrations found in the associated method blanks. V. Matrix Spike/Matrix Spike Duplicates The laboratory has indicated that there were no matrix spike (MS) and matrix spike duplicate (MSD) analyses specified for the samples in this SDG, and therefore matrix spike and matrix spike duplicate analyses were not performed for this SDG. V:\LOGNANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 4

17 V. Ongoing Precision Recovery (OPR) Ongoing precision recovery samples were reviewed for each matrix as applicable. Percent recoveries (%R) were within QC limits. V. Regional Quality Assurance and Quality Control Not applicable. X. nternal Standards All internal standard recoveries (%R) were within QC limits. X. Field Duplicates Samples NCQ1 O??PSWW-A and NCQO??PSWW-A were identified as field duplicates. No polychlorinated biphenyls as congeners were detected in any of the samples with the following exceptions: Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB (S) PCB (S) PCB (S) PCB (S) PCB (S) PCB (S) PCB (S) PCB (S50) - PCB (S) PCB (S) PCB (S50) - PCB-012/ (S21.6) PCB (S) V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 5

18 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB {S1 0.8) PCB (:>) PCB-018/ (:>21.6) PCB (:>) PCB-020/ (S50) - PCB-021/ (:>21.6) PCB (S) PCB (S) PCB-026/ (:>21.6) PCB (:>) PCB (S50) - PCB (S) PCB (S) PCB (:>) PCB (S1 0.8) PCB-040/ (S21.6) PCB (:>) PCB (S1 0.8) PCB (S1 0.8) PCB-044/04 7/ (:>50) - PCB (:>) PCB (:>) V:\LOGNANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 6

19 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB (S) PCB-049/ (S21.6) PCB-050/ (S21.6) PCB (S1 0.8) PCB (S50) - PCB (S) PCB U (S) PCB (S50) - PCB-059/062/ (S21.4) PCB (S) PCB (S1 0.8) PCB (S50) - PCB (S50) - PCB (S1 0.8) PCB (S) PCB (S1 0.8) PCB (S) PCB (S1 0.8) PCB (S50) - PCB (S1 0.8) PCB (S50) - PCB-085/ (S21.6) V:\LOGNANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 7

20 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB (S1 0.8) PCB-090/1 01/ (S50) - PCB {S1 0.8) PCB (S50) - PCB-093/ (S21.6) PCB (S) PCB {S50) - PCB {S1 0.8) PCB {S50) - PCB {S) PCB (S1 0.8) PCB U {S1 0.8) PCB {S50) - PCB-107/ {S21.6) PCB {S1 0.8) PCB {S50) - PCB (S) PCB {S) PCB (S) PCB {S50) - PCB {S) PCB {S) V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 8

21 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB-128/ (S50) - PCB-129/138/ (S50) - PCB (S1 0.8) PCB (S) PCB (S50) - PCB (S1 0.8) PCB (S) PCB-135/ (S50) - PCB (S50) - PCB (S1 0.8) PCB-139/ (S21.6) PCB (S50) - PCB U (S1 0.8) PCB (S1 0.8) PCB (S50) - PCB-147/ (S50) - PCB U (S) PCB U (S) PCB-153/ (S50) - PCB (S) PCB U (S) PCB-156/ (S21.6) V:\LOGNANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 9

22 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB {S50) - PCB (S) PCB U (S) PCB U (S1 0.8) PCB {S) PCB {S) PCB {S50) - PCB-171/ (:>21.6) PCB {S1 0.8) PCB {S50) - PCB (S) PCB {S) PCB (S50) - PCB (S1 0.8) PCB {S50) - PCB-180/ {S50) - PCB U (S1 0.8) PCB U (S) PCB {S50) - PCB {S) PCB (S1 0.8) PCB {S50) - V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 1 Q

23 Concentration (pg/g) RPD Difference Compound NCQ1 077PSWW-A NCQ077PSWW-A (Limits) (Limits) PCB (S1 0.8) PCB (S) PCB (S) PCB (S50) - PCB (S1 0.8) PCB (S) PCB (S) PCB-198/ (S21.6) PCB (S) PCB (S) PCB (S) PCB (S50) - PCB (S1 0.8) PCB (S50) - PCB (S1 0.8) PCB (S) PCB (S) PCB-061/070/07 4/ (S50) - PCB-086/087/097/1 08/119/ (S64.8) X. Field Blanks No field blanks were identified in this SDG. V:\LOGN\ANCHOR\NEWTOWN\PHASE 2\SGS\33649A31_AN3.DOC 11

24 X. Target Compound dentification Raw data were not reviewed for this SDG. X. Compound Quantitation All compound quantitations were within validation criteria with the following exceptions: Sample Compound Flag AorP All samples in SDG A7563 All compounds reported as estimated maximum possible J (all detects) A concentration (EMPC) Raw data were not reviewed for this SDG. XV. System Performance Raw data were not reviewed for this SDG. XV. Overall Assessment of Data The analysis was conducted within all specifications of the method. No results were rejected in this SDG. Due to compound quantitation, data were qualified as estimated in two samples. The quality control criteria reviewed, other than those discussed above, were met and are considered acceptable. Sample results that were found to be estimated (J) are usable for limited purposes only. Based upon the Stage 28 data validation all other results are considered valid and usable for all purposes. Data flags are summarized at the end of this report if data has been qualified. V:\LOGNANCHOR\NEWTOWNPHASE 2\SGS\33649A31_AN3.DOC 12

25 Newtown Creek Phase 2 Polychlorinated Biphenyls as Congeners- Data Qualification Summary- SDG A7563 SDG Sample Compound Flag AorP Reason A7563 NCQ1 O??PSWW-A All compounds reported as J (all detects) A Compound NCQO??PSWW-A estimated maximum possible quantitation (EMPC) concentration (EMPC) Newtown Creek Phase 2 Polychlorinated Biphenyls as Congeners - Laboratory Blank Data Qualification Summary - SDG A7563 No Sample Data Qualified in this SDG V:\LOGNANCHORNEWTOWNPHASE 2\SGS\33649A31_AN3.DOC 13

26 LDC #: 33649A31 SDG #: A7563 Laboratory: SGS North America VALDATON COMPLETENESS WORKSHEET Stage 2B METHOD: HRGC/HRMS Polychlorinated Biphenyl Congeners (EPA Method 1668A) Date :2 <-J.-( '5 Page:-1..of_1_ Reviewer:~ 2nd Reviewer: (jv" The samples listed below were reviewed for each of the following validation areas. Validation findings are noted in attached validation findings worksheets... ll. V. v. V. V. V. X. X. X. X. ~alidatioo A[ea Commeots Sample receipt/technical holdinq times A,A HRGC/HRMS nstrument performance check A nitial calibrationhe'o"- Continuing calibration Laboratory Blanks Field blanks Matrix spike/matrix spike duplicates Laboratory control samples Field duplicates nternal standards Compound quantitation RUL:QQ~:88s Target compound identification /J. 1/V 4. d-o /3s 11 ~ lotj.svj JJ 1J (_./). A DPP ~ h::: + ':1 A ~~ N X. XV. System performance Overall assessment of data N A Note: A = Acceptable N = Not provided/applicable SW = See worksheet ND = No compounds detected R = Rinsate FB = Field blank D = Duplicate TB = Trip blank EB = Equipment blank SB=Source blank OTHER: Client D LabiD Matrix Date 1 NCQ1 O??PSWW-A A water 01/18/15 2 NCQO??PSWW-A A water 01/18/ l1n Notes: L:\Anchor\Newtown\Phase 2\SGS\33649A31 W. wpd 1

27 LDC #: 33649A31 METHOD: HRGC/HRMS PCB Congeners (EPA Method 1668A) VALDATON FNDNGS WORKSHEET Blanks Page:-l,_of3 Reviewer: Sfk: 2nd Reviewer:.::Z P ase see qualifications below for all questions answered "N". Not applicable questions are identified as "N/A". Y N N/A Were all samples associated with a method blank? N N/A Was a method blank performed for each matrix and whenever a sample extraction was performed? N N/A Was the method blank contaminated? / lank extraction date: 01/23/15 Blank analysis date: 01/29/15 Associated samples: a115f- Conc. units: oa/l Compound Blank D Sample dentification MB Sx PCB PCB PCB-156/ * 7.75 PCB PCB PCB PCB PCB PCB-30/ PCB PCB-26/ PCB * 25.9 PCB-28/ PCB-21/ * 18.0 PCB PCB PCB-69/ V:\Validation-Bianks\33649A31. wpd

28 LDC #: 33649A31 METHOD: HRGC/HRMS PCB Congeners (EPA Method 1668A) VALDATON FNDNGS WORKSHEET Blanks Compound Blank D Sample dentification MB x PCB-44/4 7/ Page:~ of~ Reviewe~ 2nd Reviewer: ~ PCB-71/ PCB PCB-61/70/74/ PCB PCB PCB PCB * 8.25 PCB PCB PCB-113/90/ PCB PCB-1 08/119/86/97/125/ PCB PCB * 9.60 PCB-151/ PCB-147/ PCB PCB PCB-153/ PCB * 11.8 V:\Validation-Bianks\33649A31.wpd

29 LDC #: 33649A31 METHOD: HRGC/HRMS PCB Congeners (EPA Method 1668A) VALDATON FNDNGS WORKSHEET Blanks Compound Blank D Sample dentification MB1_ x PCB-163/138/ PCB Page:3_ot3- ReviewerC{k- 2nd Reviewer: 9( PCB * 16.5 PCB PCB * 14.8 PCB PCB-180/ PCB * 10.7 PCB * 5.45 *EMPC V:\Validation-Bianks\33649A31.wpd

30 LDC: _33649A31 Method: PCBs by Method 1668A VALDATON FNDNGS WORKSHEET Field Duplicates PageL of'± Reviewe~ 2nd Reviewer:~ Analyte 1 ) Diff. (:0 PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB-012/ PCB PCB PCB PCB-018/ PCB PCB-020/ PCB-021/ PCB PCB PCB-026/ PCB PCB PCB PCB PCB PCB PCB-040/ PCB PCB PCB PCB-044/047 / PCB PCB PCB PCB-049/ PCB-050/ PCB PCB V:\FELD DUPLCATES\33649A31_FD

31 LDC: _33649A31 Method: PCBs by Method 1668A VALDATON FNDNGS WORKSHEET Field Duplicates Pag~tt4 Reviewer~ 2nd Reviewer:~ Analyte <.;oncen 1 2 RPD (S 50) Diff. Diff. Limits (<QL) PCB PCB U 2.39 PCB PCB-059/062/ PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB-085/ PCB PCB-090/101/ PCB PCB PCB-093/ PCB PCB PCB PCB PCB PCB PCB U PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB-128/ PCB-129/138/ PCB PCB V:\FELD DUPLCATES\33649A31_FD

32 LDC: _33649A31_ Method: PCBs by Method 1668A VALDATON FNDNGS WORKSHEET Field Duplicates Page2o~~ Reviewer~ 2nd Reviewer:-LZl: Concentr:tion (pg/l) Analyte 2 PCB PCB PCB PCB-135/ PCB PCB PCB-139/ PCB PCB U 2.7 PCB PCB PCB-147 / PCB U 1.53 PCB U PCB-153/ PCB PCB U 1.57 PCB-156/ PCB PCB PCB U PCB U 3.64 PCB PCB PCB PCB-171/ PCB PCB PCB PCB PCB PCB PCB RPD (S 50) Diff Diff. Limits (<QL) V:\FELD DUPLCATES\33649A31_FD

33 LDC: _33649A31 Method: PCBs by Method 1668A VALDATON FNDNGS WORKSHEET Field Duplicates Pagkl-ot;/ Reviewe-r :~ 2nd Reviewer:~!Concentration (pg/l) Ana lyle 1 2 PCB-180/ PCB U 2.15 PCB U 2.34 PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB-198/ PCB PCB PCB PCB PCB PCB PCB PCB PCB PCB-061/070/074/ PCB-086/087 /097/108/119/ RPD ($50) Diff Diff. Limits (:OOL) V:\FELD DUPLCATES\33649A31_FD

34 LDC #: 33((lc.Jq q\. ~) VALDATON FNDNGS WORKSHEET Compound Quantitation and Reported CRQLs Page: _1_of_1_ Reviewer~ 2nd Reviewer: ~ METHOD: HRGC/HRMS PCB Congeners (EPA Method 1668A) Please see qualifications below for all questions answered "N". Not applicable questions are identified as "N/A". ~ ~ Were the correct internal standard (S), quantitation ions and relative response factors (RRF) used to quantitate the compound? Compound quantitation and CRQLs were adjusted to reflect all sample dilutions and dry weight factors (if necessary). # Date Compound Finding Associated Samples Qualifications EMPC results all Jdets/A Comments: P:NEWTOWN 1668-COMQUA. wpd