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Chlorinated pesticide analysis results, sample AD23502, Oct 2001

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Laboratory report for chlorinated pesticides in sample AD23502 extracted September 27, 2001, with all results below detection limits.

NYC-WTC_000080652–000080658

Folder label: “508 9/27/01 Extraction 10/13-10/15 Analysis

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NYC 9/11 Public Portal Document Quantitation Report' (QT'Revi'ewed) -Signa-1-#1-:-C:-\HPCHEM\ 1 \DATA\508F\011012\23502tD\-ECD1AtCH-Vial-; '48 Signal #2 : C:\HPCHEM\l\DATA\508F\011012\23502.D\ECD2B.CH Acq On : 14 Oct 2001 12:22 am Operator: Nefliu Sample : sample Inst : 104 Mise : Multiplr: 1.00 IntFile Signal #1: events.e IntFile Signal #2: events2.e Quant Time: Oct 15 11:01 2001 Quant Results File: 011012P.RES Quant Method : C:\HPCHEM\1\METHODS\011012P.M (Chemstation Integrator) Title : 508 CHLORINATED PESTICIDES 9/6/00 Last Update : Fri Sep 28 14:35:02 2001 Response via : Initial Calibration DataAcq Meth : 508F.M Volume Inj. Signal #1 Phase Signal #2 Phase: Signal #1 Info Signal #2 Info : Compound RT#1 RT#2 Resp#l Resp#2 ug/L ug/L

System Monitoring Compounds 10) S 2,4-DDD SURROGAT 37.24 34.49 418832 573598 0.092 0.104 Spiked Amount 0.100 Recovery = 92.00% 104.00% Target Compounds 1) PROPACHLOR 17.03 16.19 629 6525 0.001 0.007 # 2) g-BHC 23.37 21.10 22956 6527 0.003 0.001 # 3) HEPTACHLOR 25.88 22.61 2815 8683 0.001 0.001 # 4) ALDRIN 28.81 24.65 1029 1265 0.000 0.000 5) HEPTACHLOR EPOXI 32.50 29.79 1982 4651 0.000 0.000 # 6) 4,4'-DDE 36.03 32.90 1465 3886 0.000 0.000 # 7) DIELDRIN 36.21 33.74 5579 1898 0.001 0.000 # 8) ENDRIN 38.47 0.00 2424 0 0.001 N.D. d# 9) METHOXYCHLOR 49.53 41.86 509 484914 0.000 0.233 #

(f)=RT Delta > 1/2 Window {#)=Amounts differ by > 25% (m)=manual int. 23502.D 011012P.M Mon Oct 15 11:02:09 2001 Page 1

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NYC-WTC_000080653Source: NYC Law Department, mirrored locally

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