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Chlorinated pesticide analysis results, sample AD23605, Oct 2001

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Laboratory report for chlorinated pesticides in sample AD23605 extracted September 27, 2001, with all results below detection limits.

NYC-WTC_000080668–000080676

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

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NYC 9/11 Public Portal Document Quantitation Repoft (QT Reviewed)

Signal- #1—:-C:\HPCHEM\l\DATA\508F\011012\23605.D\ECDlA~CH“Viar:—52“ Signal #2 : C:\HPCHEM\l\DATA\508F\011012\23605.D\ECD2B.CH Acq On : 14 Oct 2001 2:18 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 11:06 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 34.50 420341 564406 0.092 0.102 Spiked Amount 0.100 Recovery = 92.00% 102.00% Target Compounds 1) PROPACHLOR 0.00 16.05 0 21795 N.D. d 0.025 2) g-BHC 23.32 21.19 4150 3513 0.001 0.000 # 3) HEPTACHLOR 26.30f 22.86 3153 10858 0.001 0.001 # 4) ALDRIN 28.61 24.63 10127 3326 0.001 . 0.000 # 5) HEPTACHLOR EPOXI 32.16f 29.96 5017 4677 0.001 0.000 # 6) 4,4'-DDE 35.91 32.88 8481 5385 0.001 0.001 # 7) DIELDRIN 36.22 33.82 10108 6090 0.001 0.001 # 8) ENDRIN 38.37 34.70 7013 1607 0.002 0.000 # 9) METHOXYCHLOR 49.58 41.86 1788 204179 0.001 0.098 #

(f)=RT Delta > 1/2 Window {#)=Amounts differ by > 25% (m)=manual int. 23605.D 011012P.M Mon Oct 15 11:07:10 2001 Page 1

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NYC-WTC_000080669Source: NYC Law Department, mirrored locally

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